.278906][ T6041]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  433.278951][ T6041]  ? __pfx_hlock_conflict+0x10/0x10
[  433.278961][ T6041]  ? __bfs+0x153/0x290
[  433.278974][ T6041]  ? __pfx_hlock_conflict+0x10/0x10
[  433.278998][ T6041]  ? lockdep_unlock+0x5d/0xd0
[  433.279010][ T6041]  ? __lock_acquire+0x13e8/0x2cf0
[  433.279042][ T6041]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  433.279060][ T6041]  do_writepages+0x338/0x560
[  433.279084][ T6041]  ? do_raw_spin_unlock+0x4d/0x210
[  433.279099][ T6041]  filemap_fdatawrite+0x1e9/0x2f0
[  433.279146][ T6041]  ? __pfx_filemap_fdatawrite+0x10/0x10
[  433.279210][ T6041]  ? do_raw_spin_unlock+0x4d/0x210
[  433.279227][ T6041]  f2fs_sync_dirty_inodes+0x30e/0x830
[  433.279254][ T6041]  f2fs_write_checkpoint+0xa3d/0x2710
[  433.279293][ T6041]  ? __pfx_f2fs_write_checkpoint+0x10/0x10
[  433.279342][ T6041]  kill_f2fs_super+0x2dd/0x700
[  433.279366][ T6041]  ? __pfx_kill_f2fs_super+0x10/0x10
[  433.279390][ T6041]  ? call_rcu+0x64b/0x8b0
[  433.279400][ T6041]  ? lockdep_hardirqs_on+0x7a/0x110
[  433.279421][ T6041]  deactivate_locked_super+0xbc/0x110
[  433.279441][ T6041]  cleanup_mnt+0x3d3/0x460
[  433.279458][ T6041]  task_work_run+0x1d9/0x270
[  433.279487][ T6041]  ? __pfx_task_work_run+0x10/0x10
[  433.279512][ T6041]  exit_to_user_mode_loop+0x1fa/0x730
[  433.279528][ T6041]  ? rcu_is_watching+0x15/0xb0
[  433.279546][ T6041]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  433.279560][ T6041]  do_syscall_64+0x353/0x580
[  433.279573][ T6041]  ? trace_irq_disable+0x3b/0x140
[  433.279594][ T6041]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  433.279606][ T6041] RIP: 0033:0x7fc736b9f257
[  433.279619][ T6041] Code: a2 c7 05 9c 44 25 00 00 00 00 00 eb 96 e8 e1 12 00 00 90 31 f6 e9 09 00 00 00 66 0f 1f 84 00 00 00 00 00 b8 a6 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 01 c3 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8
[  433.279630][ T6041] RSP: 002b:00007fffd6f1ae68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
[  433.279644][ T6041] RAX: 0000000000000000 RBX: 00007fc736c3445c RCX: 00007fc736b9f257
[  433.279652][ T6041] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007fffd6f1af20
[  433.279659][ T6041] RBP: 00007fffd6f1af20 R08: 00007fffd6f1bf20 R09: 00000000ffffffff
[  433.279668][ T6041] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fffd6f1bfb0
[  433.279675][ T6041] R13: 00007fc736c3445c R14: 0000000000069be5 R15: 00007fffd6f1bff0
[  433.279697][ T6041]  </TASK>
[  433.389768][ T6041] F2FS-fs (loop0): Stopped filesystem due to reason: 3
[  433.501204][T10069] loop2: detected capacity change from 0 to 40427
[  433.514187][T10069] F2FS-fs (loop2): Small segment_count (9 < 1 * 24)
[  433.538222][T10069] F2FS-fs (loop2): Can't find valid F2FS filesystem in 1th superblock
[  433.642920][T10069] F2FS-fs (loop2): f2fs_recover_fsync_data: recovery fsync data, check_only: 0
[  433.659777][T10069] F2FS-fs (loop2): Try to recover 1th superblock, ret: 0
[  433.662620][T10069] F2FS-fs (loop2): Mounted with checkpoint version = 48b305e5
[  433.666162][T10071] loop1: detected capacity change from 0 to 40427
[  433.673975][T10071] F2FS-fs (loop1): Small segment_count (9 < 1 * 24)
[  433.676162][T10071] F2FS-fs (loop1): Can't find valid F2FS filesystem in 1th superblock
[  433.730693][ T6048] CPU: 1 UID: 0 PID: 6048 Comm: syz-executor Not tainted syzkaller #0 PREEMPT(full) 
[  433.730714][ T6048] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
[  433.730723][ T6048] Call Trace:
[  433.730729][ T6048]  <TASK>
[  433.730736][ T6048]  dump_stack_lvl+0xe8/0x150
[  433.730758][ T6048]  f2fs_stop_checkpoint+0x3f6/0x5d0
[  433.730777][ T6048]  f2fs_write_end_io+0x124b/0x1710
[  433.730805][ T6048]  __submit_merged_bio+0x258/0x6a0
[  433.730820][ T6048]  ? rcu_is_watching+0x15/0xb0
[  433.730840][ T6048]  __submit_merged_write_cond+0x3c9/0x4e0
[  433.730860][ T6048]  ? __pfx___submit_merged_write_cond+0x10/0x10
[  433.730891][ T6048]  f2fs_write_data_pages+0x2a27/0x36f0
[  433.730907][ T6048]  ? __lock_acquire+0x683/0x2cf0
[  433.730944][ T6048]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  433.730985][ T6048]  ? __pfx_hlock_conflict+0x10/0x10
[  433.730997][ T6048]  ? __bfs+0x153/0x290
[  433.731010][ T6048]  ? __pfx_hlock_conflict+0x10/0x10
[  433.731030][ T6048]  ? lockdep_unlock+0x5d/0xd0
[  433.731043][ T6048]  ? __lock_acquire+0x13e8/0x2cf0
[  433.731074][ T6048]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  433.731090][ T6048]  do_writepages+0x338/0x560
[  433.731142][ T6048]  ? do_raw_spin_unlock+0x4d/0x210
[  433.731160][ T6048]  filemap_fdatawrite+0x1e9/0x2f0
[  433.731180][ T6048]  ? __pfx_filemap_fdatawrite+0x10/0x10
[  433.731225][ T6048]  ? do_raw_spin_unlock+0x4d/0x210
[  433.731240][ T6048]  f2fs_sync_dirty_inodes+0x30e/0x830
[  433.731268][ T6048]  f2fs_write_checkpoint+0xa3d/0x2710
[  433.731306][ T6048]  ? __pfx_f2fs_write_checkpoint+0x10/0x10
[  433.731357][ T6048]  kill_f2fs_super+0x2dd/0x700
[  433.731381][ T6048]  ? __pfx_kill_f2fs_super+0x10/0x10
[  433.731406][ T6048]  ? call_rcu+0x64b/0x8b0
[  433.731417][ T6048]  ? lockdep_hardirqs_on+0x7a/0x110
[  433.731440][ T6048]  deactivate_locked_super+0xbc/0x110
[  433.731459][ T6048]  cleanup_mnt+0x3d3/0x460
[  433.731482][ T6048]  task_work_run+0x1d9/0x270
[  433.731501][ T6048]  ? __pfx_task_work_run+0x10/0x10
[  433.731525][ T6048]  exit_to_user_mode_loop+0x1fa/0x730
[  433.731540][ T6048]  ? rcu_is_watching+0x15/0xb0
[  433.731558][ T6048]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  433.731571][ T6048]  do_syscall_64+0x353/0x580
[  433.731584][ T6048]  ? trace_irq_disable+0x3b/0x140
[  433.731603][ T6048]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  433.731615][ T6048] RIP: 0033:0x7fc5e679f257
[  433.731629][ T6048] Code: a2 c7 05 9c 44 25 00 00 00 00 00 eb 96 e8 e1 12 00 00 90 31 f6 e9 09 00 00 00 66 0f 1f 84 00 00 00 00 00 b8 a6 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 01 c3 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8
[  433.731640][ T6048] RSP: 002b:00007fff49366408 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
[  433.731654][ T6048] RAX: 0000000000000000 RBX: 00007fc5e683445c RCX: 00007fc5e679f257
[  433.731662][ T6048] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007fff493664c0
[  433.731669][ T6048] RBP: 00007fff493664c0 R08: 00007fff493674c0 R09: 00000000ffffffff
[  433.731677][ T6048] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fff49367550
[  433.731685][ T6048] R13: 00007fc5e683445c R14: 0000000000069d73 R15: 00007fff49367590
[  433.731706][ T6048]  </TASK>
[  433.731711][ T6048] F2FS-fs (loop2): Stopped filesystem due to reason: 3
[  433.871453][T10071] F2FS-fs (loop1): f2fs_recover_fsync_data: recovery fsync data, check_only: 0
[  433.878871][T10071] F2FS-fs (loop1): Try to recover 1th superblock, ret: 0
[  433.882273][T10071] F2FS-fs (loop1): Mounted with checkpoint version = 48b305e5
[  433.902049][ T6044] CPU: 0 UID: 0 PID: 6044 Comm: syz-executor Not tainted syzkaller #0 PREEMPT(full) 
[  433.902069][ T6044] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
[  433.902078][ T6044] Call Trace:
[  433.902084][ T6044]  <TASK>
[  433.902090][ T6044]  dump_stack_lvl+0xe8/0x150
[  433.902144][ T6044]  f2fs_stop_checkpoint+0x3f6/0x5d0
[  433.902164][ T6044]  f2fs_write_end_io+0x124b/0x1710
[  433.902193][ T6044]  __submit_merged_bio+0x258/0x6a0
[  433.902209][ T6044]  ? rcu_is_watching+0x15/0xb0
[  433.902230][ T6044]  __submit_merged_write_cond+0x3c9/0x4e0
[  433.902250][ T6044]  ? __pfx___submit_merged_write_cond+0x10/0x10
[  433.902279][ T6044]  f2fs_write_data_pages+0x2a27/0x36f0
[  433.902296][ T6044]  ? __lock_acquire+0x683/0x2cf0
[  433.902330][ T6044]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  433.902379][ T6044]  ? __pfx_hlock_conflict+0x10/0x10
[  433.902391][ T6044]  ? __bfs+0x153/0x290
[  433.902405][ T6044]  ? __pfx_hlock_conflict+0x10/0x10
[  433.902427][ T6044]  ? lockdep_unlock+0x5d/0xd0
[  433.902440][ T6044]  ? __lock_acquire+0x13e8/0x2cf0
[  433.902471][ T6044]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  433.902487][ T6044]  do_writepages+0x338/0x560
[  433.902510][ T6044]  ? do_raw_spin_unlock+0x4d/0x210
[  433.902527][ T6044]  filemap_fdatawrite+0x1e9/0x2f0
[  433.902545][ T6044]  ? __pfx_filemap_fdatawrite+0x10/0x10
[  433.902587][ T6044]  ? do_raw_spin_unlock+0x4d/0x210
[  433.902604][ T6044]  f2fs_sync_dirty_inodes+0x30e/0x830
[  433.902629][ T6044]  f2fs_write_checkpoint+0xa3d/0x2710
[  433.902666][ T6044]  ? __pfx_f2fs_write_checkpoint+0x10/0x10
[  433.902714][ T6044]  kill_f2fs_super+0x2dd/0x700
[  433.902736][ T6044]  ? __pfx_kill_f2fs_super+0x10/0x10
[  433.902761][ T6044]  ? call_rcu+0x64b/0x8b0
[  433.902773][ T6044]  ? lockdep_hardirqs_on+0x7a/0x110
[  433.902795][ T6044]  deactivate_locked_super+0xbc/0x110
[  433.902814][ T6044]  cleanup_mnt+0x3d3/0x460
[  433.902829][ T6044]  task_work_run+0x1d9/0x270
[  433.902849][ T6044]  ? __pfx_task_work_run+0x10/0x10
[  433.902871][ T6044]  exit_to_user_mode_loop+0x1fa/0x730
[  433.902886][ T6044]  ? rcu_is_watching+0x15/0xb0
[  433.902902][ T6044]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  433.902916][ T6044]  do_syscall_64+0x353/0x580
[  433.902930][ T6044]  ? trace_irq_disable+0x3b/0x140
[  433.902948][ T6044]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  433.902960][ T6044] RIP: 0033:0x7fc4dff9f257
[  433.902973][ T6044] Code: a2 c7 05 9c 44 25 00 00 00 00 00 eb 96 e8 e1 12 00 00 90 31 f6 e9 09 00 00 00 66 0f 1f 84 00 00 00 00 00 b8 a6 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 01 c3 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8
[  433.902983][ T6044] RSP: 002b:00007fff836538d8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
[  433.902998][ T6044] RAX: 0000000000000000 RBX: 00007fc4e003445c RCX: 00007fc4dff9f257
[  433.903005][ T6044] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007fff83653990
[  433.903012][ T6044] RBP: 00007fff83653990 R08: 00007fff83654990 R09: 00000000ffffffff
[  433.903021][ T6044] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fff83654a20
[  433.903028][ T6044] R13: 00007fc4e003445c R14: 0000000000069e53 R15: 00007fff83654a60
[  433.903047][ T6044]  </TASK>
[  433.906769][ T6044] F2FS-fs (loop1): Stopped filesystem due to reason: 3
[  433.929540][T10073] loop0: detected capacity change from 0 to 40427
[  434.045580][T10073] F2FS-fs (loop0): Small segment_count (9 < 1 * 24)
[  434.048833][T10073] F2FS-fs (loop0): Can't find valid F2FS filesystem in 1th superblock
[  434.190869][T10073] F2FS-fs (loop0): f2fs_recover_fsync_data: recovery fsync data, check_only: 0
[  434.198345][T10073] F2FS-fs (loop0): Try to recover 1th superblock, ret: 0
[  434.202292][T10073] F2FS-fs (loop0): Mounted with checkpoint version = 48b305e5
[  434.207895][   T34] kauditd_printk_skb: 21 callbacks suppressed
[  434.207907][   T34] audit: type=1800 audit(1785886814.624:1923): pid=10073 uid=0 auid=4294967295 ses=4294967295 subj=unconfined op=collect_data cause=failed(directio) comm="syz.0.979" name="file1" dev="loop0" ino=10 res=0 errno=0
[  434.218513][   T34] audit: type=1800 audit(1785886814.634:1924): pid=10073 uid=0 auid=4294967295 ses=4294967295 subj=unconfined op=collect_data cause=failed(directio) comm="syz.0.979" name="file1" dev="loop0" ino=10 res=0 errno=0
[  434.246578][ T6041] CPU: 0 UID: 0 PID: 6041 Comm: syz-executor Not tainted syzkaller #0 PREEMPT(full) 
[  434.246598][ T6041] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
[  434.246606][ T6041] Call Trace:
[  434.246612][ T6041]  <TASK>
[  434.246617][ T6041]  dump_stack_lvl+0xe8/0x150
[  434.246639][ T6041]  f2fs_stop_checkpoint+0x3f6/0x5d0
[  434.246659][ T6041]  f2fs_write_end_io+0x124b/0x1710
[  434.246686][ T6041]  __submit_merged_bio+0x258/0x6a0
[  434.246701][ T6041]  ? rcu_is_watching+0x15/0xb0
[  434.246721][ T6041]  __submit_merged_write_cond+0x3c9/0x4e0
[  434.246742][ T6041]  ? __pfx___submit_merged_write_cond+0x10/0x10
[  434.246771][ T6041]  f2fs_write_data_pages+0x2a27/0x36f0
[  434.246787][ T6041]  ? __lock_acquire+0x683/0x2cf0
[  434.246823][ T6041]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  434.246861][ T6041]  ? __pfx_hlock_conflict+0x10/0x10
[  434.246872][ T6041]  ? __bfs+0x153/0x290
[  434.246885][ T6041]  ? __pfx_hlock_conflict+0x10/0x10
[  434.246906][ T6041]  ? lockdep_unlock+0x5d/0xd0
[  434.246918][ T6041]  ? __lock_acquire+0x13e8/0x2cf0
[  434.246947][ T6041]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  434.246963][ T6041]  do_writepages+0x338/0x560
[  434.246985][ T6041]  ? do_raw_spin_unlock+0x4d/0x210
[  434.247001][ T6041]  filemap_fdatawrite+0x1e9/0x2f0
[  434.247020][ T6041]  ? __pfx_filemap_fdatawrite+0x10/0x10
[  434.247062][ T6041]  ? do_raw_spin_unlock+0x4d/0x210
[  434.247077][ T6041]  f2fs_sync_dirty_inodes+0x30e/0x830
[  434.247134][ T6041]  f2fs_write_checkpoint+0xa3d/0x2710
[  434.247170][ T6041]  ? __pfx_f2fs_write_checkpoint+0x10/0x10
[  434.247216][ T6041]  kill_f2fs_super+0x2dd/0x700
[  434.247239][ T6041]  ? __pfx_kill_f2fs_super+0x10/0x10
[  434.247279][ T6041]  ? call_rcu+0x64b/0x8b0
[  434.247291][ T6041]  ? lockdep_hardirqs_on+0x7a/0x110
[  434.247314][ T6041]  deactivate_locked_super+0xbc/0x110
[  434.247333][ T6041]  cleanup_mnt+0x3d3/0x460
[  434.247348][ T6041]  task_work_run+0x1d9/0x270
[  434.247375][ T6041]  ? __pfx_task_work_run+0x10/0x10
[  434.247396][ T6041]  exit_to_user_mode_loop+0x1fa/0x730
[  434.247409][ T6041]  ? rcu_is_watching+0x15/0xb0
[  434.247425][ T6041]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  434.247438][ T6041]  do_syscall_64+0x353/0x580
[  434.247451][ T6041]  ? trace_irq_disable+0x3b/0x140
[  434.247469][ T6041]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  434.247481][ T6041] RIP: 0033:0x7fc736b9f257
[  434.247493][ T6041] Code: a2 c7 05 9c 44 25 00 00 00 00 00 eb 96 e8 e1 12 00 00 90 31 f6 e9 09 00 00 00 66 0f 1f 84 00 00 00 00 00 b8 a6 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 01 c3 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8
[  434.247504][ T6041] RSP: 002b:00007fffd6f1ae68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
[  434.247517][ T6041] RAX: 0000000000000000 RBX: 00007fc736c3445c RCX: 00007fc736b9f257
[  434.247526][ T6041] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007fffd6f1af20
[  434.247533][ T6041] RBP: 00007fffd6f1af20 R08: 00007fffd6f1bf20 R09: 00000000ffffffff
[  434.247541][ T6041] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fffd6f1bfb0
[  434.247549][ T6041] R13: 00007fc736c3445c R14: 0000000000069fa4 R15: 00007fffd6f1bff0
[  434.247569][ T6041]  </TASK>
[  434.364895][ T6041] F2FS-fs (loop0): Stopped filesystem due to reason: 3
2026/08/04 23:40:14 executed programs: 971
[  434.693299][T10083] loop1: detected capacity change from 0 to 40427
[  434.698323][T10083] F2FS-fs (loop1): Small segment_count (9 < 1 * 24)
[  434.705267][T10083] F2FS-fs (loop1): Can't find valid F2FS filesystem in 1th superblock
[  434.803676][T10083] F2FS-fs (loop1): f2fs_recover_fsync_data: recovery fsync data, check_only: 0
[  434.821288][T10083] F2FS-fs (loop1): Try to recover 1th superblock, ret: 0
[  434.830330][T10083] F2FS-fs (loop1): Mounted with checkpoint version = 48b305e5
[  434.836552][   T34] audit: type=1800 audit(1785886815.254:1925): pid=10083 uid=0 auid=4294967295 ses=4294967295 subj=unconfined op=collect_data cause=failed(directio) comm="syz.1.981" name="file1" dev="loop1" ino=10 res=0 errno=0
[  434.855477][   T34] audit: type=1800 audit(1785886815.254:1926): pid=10083 uid=0 auid=4294967295 ses=4294967295 subj=unconfined op=collect_data cause=failed(directio) comm="syz.1.981" name="file1" dev="loop1" ino=10 res=0 errno=0
[  434.870922][ T6044] CPU: 1 UID: 0 PID: 6044 Comm: syz-executor Not tainted syzkaller #0 PREEMPT(full) 
[  434.870943][ T6044] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
[  434.870951][ T6044] Call Trace:
[  434.870956][ T6044]  <TASK>
[  434.870963][ T6044]  dump_stack_lvl+0xe8/0x150
[  434.871012][ T6044]  f2fs_stop_checkpoint+0x3f6/0x5d0
[  434.871033][ T6044]  f2fs_write_end_io+0x124b/0x1710
[  434.871063][ T6044]  __submit_merged_bio+0x258/0x6a0
[  434.871078][ T6044]  ? rcu_is_watching+0x15/0xb0
[  434.871129][ T6044]  __submit_merged_write_cond+0x3c9/0x4e0
[  434.871150][ T6044]  ? __pfx___submit_merged_write_cond+0x10/0x10
[  434.871179][ T6044]  f2fs_write_data_pages+0x2a27/0x36f0
[  434.871196][ T6044]  ? __lock_acquire+0x683/0x2cf0
[  434.871233][ T6044]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  434.871278][ T6044]  ? __pfx_hlock_conflict+0x10/0x10
[  434.871289][ T6044]  ? __bfs+0x153/0x290
[  434.871303][ T6044]  ? __pfx_hlock_conflict+0x10/0x10
[  434.871325][ T6044]  ? lockdep_unlock+0x5d/0xd0
[  434.871338][ T6044]  ? __lock_acquire+0x13e8/0x2cf0
[  434.871377][ T6044]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  434.871395][ T6044]  do_writepages+0x338/0x560
[  434.871418][ T6044]  ? do_raw_spin_unlock+0x4d/0x210
[  434.871435][ T6044]  filemap_fdatawrite+0x1e9/0x2f0
[  434.871454][ T6044]  ? __pfx_filemap_fdatawrite+0x10/0x10
[  434.871499][ T6044]  ? do_raw_spin_unlock+0x4d/0x210
[  434.871515][ T6044]  f2fs_sync_dirty_inodes+0x30e/0x830
[  434.871542][ T6044]  f2fs_write_checkpoint+0xa3d/0x2710
[  434.871580][ T6044]  ? __pfx_f2fs_write_checkpoint+0x10/0x10
[  434.871631][ T6044]  kill_f2fs_super+0x2dd/0x700
[  434.871654][ T6044]  ? __pfx_kill_f2fs_super+0x10/0x10
[  434.871679][ T6044]  ? call_rcu+0x64b/0x8b0
[  434.871691][ T6044]  ? lockdep_hardirqs_on+0x7a/0x110
[  434.871714][ T6044]  deactivate_locked_super+0xbc/0x110
[  434.871733][ T6044]  cleanup_mnt+0x3d3/0x460
[  434.871749][ T6044]  task_work_run+0x1d9/0x270
[  434.871768][ T6044]  ? __pfx_task_work_run+0x10/0x10
[  434.871793][ T6044]  exit_to_user_mode_loop+0x1fa/0x730
[  434.871808][ T6044]  ? rcu_is_watching+0x15/0xb0
[  434.871825][ T6044]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  434.871839][ T6044]  do_syscall_64+0x353/0x580
[  434.871850][ T6044]  ? trace_irq_disable+0x3b/0x140
[  434.871869][ T6044]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  434.871881][ T6044] RIP: 0033:0x7fc4dff9f257
[  434.871893][ T6044] Code: a2 c7 05 9c 44 25 00 00 00 00 00 eb 96 e8 e1 12 00 00 90 31 f6 e9 09 00 00 00 66 0f 1f 84 00 00 00 00 00 b8 a6 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 01 c3 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8
[  434.871903][ T6044] RSP: 002b:00007fff836538d8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
[  434.871917][ T6044] RAX: 0000000000000000 RBX: 00007fc4e003445c RCX: 00007fc4dff9f257
[  434.871926][ T6044] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007fff83653990
[  434.871933][ T6044] RBP: 00007fff83653990 R08: 00007fff83654990 R09: 00000000ffffffff
[  434.871940][ T6044] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fff83654a20
[  434.871948][ T6044] R13: 00007fc4e003445c R14: 000000000006a20c R15: 00007fff83654a60
[  434.871965][ T6044]  </TASK>
[  434.877331][ T6044] F2FS-fs (loop1): Stopped filesystem due to reason: 3
[  434.877801][T10081] loop2: detected capacity change from 0 to 40427
[  434.945184][T10085] loop0: detected capacity change from 0 to 40427
[  434.970925][T10081] F2FS-fs (loop2): Small segment_count (9 < 1 * 24)
[  435.022975][T10081] F2FS-fs (loop2): Can't find valid F2FS filesystem in 1th superblock
[  435.030000][T10085] F2FS-fs (loop0): Small segment_count (9 < 1 * 24)
[  435.057554][T10085] F2FS-fs (loop0): Can't find valid F2FS filesystem in 1th superblock
[  435.100491][T10081] F2FS-fs (loop2): f2fs_recover_fsync_data: recovery fsync data, check_only: 0
[  435.108051][T10081] F2FS-fs (loop2): Try to recover 1th superblock, ret: 0
[  435.111327][T10081] F2FS-fs (loop2): Mounted with checkpoint version = 48b305e5
[  435.116626][   T34] audit: type=1800 audit(1785886815.534:1927): pid=10081 uid=0 auid=4294967295 ses=4294967295 subj=unconfined op=collect_data cause=failed(directio) comm="syz.2.980" name="file1" dev="loop2" ino=10 res=0 errno=0
[  435.130385][   T34] audit: type=1800 audit(1785886815.534:1928): pid=10081 uid=0 auid=4294967295 ses=4294967295 subj=unconfined op=collect_data cause=failed(directio) comm="syz.2.980" name="file1" dev="loop2" ino=10 res=0 errno=0
[  435.141331][ T6048] CPU: 0 UID: 0 PID: 6048 Comm: syz-executor Not tainted syzkaller #0 PREEMPT(full) 
[  435.141352][ T6048] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
[  435.141360][ T6048] Call Trace:
[  435.141366][ T6048]  <TASK>
[  435.141373][ T6048]  dump_stack_lvl+0xe8/0x150
[  435.141397][ T6048]  f2fs_stop_checkpoint+0x3f6/0x5d0
[  435.141418][ T6048]  f2fs_write_end_io+0x124b/0x1710
[  435.141451][ T6048]  __submit_merged_bio+0x258/0x6a0
[  435.141465][ T6048]  ? rcu_is_watching+0x15/0xb0
[  435.141487][ T6048]  __submit_merged_write_cond+0x3c9/0x4e0
[  435.141509][ T6048]  ? __pfx___submit_merged_write_cond+0x10/0x10
[  435.141541][ T6048]  f2fs_write_data_pages+0x2a27/0x36f0
[  435.141583][ T6048]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  435.141626][ T6048]  ? __pfx_hlock_conflict+0x10/0x10
[  435.141636][ T6048]  ? __bfs+0x153/0x290
[  435.141674][ T6048]  ? __pfx_hlock_conflict+0x10/0x10
[  435.141700][ T6048]  ? lockdep_unlock+0x5d/0xd0
[  435.141714][ T6048]  ? __lock_acquire+0x13e8/0x2cf0
[  435.141749][ T6048]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  435.141766][ T6048]  do_writepages+0x338/0x560
[  435.141791][ T6048]  ? do_raw_spin_unlock+0x4d/0x210
[  435.141808][ T6048]  filemap_fdatawrite+0x1e9/0x2f0
[  435.141827][ T6048]  ? __pfx_filemap_fdatawrite+0x10/0x10
[  435.141876][ T6048]  ? do_raw_spin_unlock+0x4d/0x210
[  435.141892][ T6048]  f2fs_sync_dirty_inodes+0x30e/0x830
[  435.141921][ T6048]  f2fs_write_checkpoint+0xa3d/0x2710
[  435.141961][ T6048]  ? __pfx_f2fs_write_checkpoint+0x10/0x10
[  435.142016][ T6048]  kill_f2fs_super+0x2dd/0x700
[  435.142040][ T6048]  ? __pfx_kill_f2fs_super+0x10/0x10
[  435.142065][ T6048]  ? call_rcu+0x64b/0x8b0
[  435.142076][ T6048]  ? lockdep_hardirqs_on+0x7a/0x110
[  435.142135][ T6048]  deactivate_locked_super+0xbc/0x110
[  435.142154][ T6048]  cleanup_mnt+0x3d3/0x460
[  435.142171][ T6048]  task_work_run+0x1d9/0x270
[  435.142192][ T6048]  ? __pfx_task_work_run+0x10/0x10
[  435.142217][ T6048]  exit_to_user_mode_loop+0x1fa/0x730
[  435.142232][ T6048]  ? rcu_is_watching+0x15/0xb0
[  435.142250][ T6048]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  435.142263][ T6048]  do_syscall_64+0x353/0x580
[  435.142276][ T6048]  ? trace_irq_disable+0x3b/0x140
[  435.142296][ T6048]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  435.142308][ T6048] RIP: 0033:0x7fc5e679f257
[  435.142321][ T6048] Code: a2 c7 05 9c 44 25 00 00 00 00 00 eb 96 e8 e1 12 00 00 90 31 f6 e9 09 00 00 00 66 0f 1f 84 00 00 00 00 00 b8 a6 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 01 c3 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8
[  435.142332][ T6048] RSP: 002b:00007fff49366408 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
[  435.142346][ T6048] RAX: 0000000000000000 RBX: 00007fc5e683445c RCX: 00007fc5e679f257
[  435.142354][ T6048] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007fff493664c0
[  435.142361][ T6048] RBP: 00007fff493664c0 R08: 00007fff493674c0 R09: 00000000ffffffff
[  435.142369][ T6048] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fff49367550
[  435.142376][ T6048] R13: 00007fc5e683445c R14: 000000000006a322 R15: 00007fff49367590
[  435.142398][ T6048]  </TASK>
[  435.143357][ T6048] F2FS-fs (loop2): Stopped filesystem due to reason: 3
[  435.168679][T10085] F2FS-fs (loop0): f2fs_recover_fsync_data: recovery fsync data, check_only: 0
[  435.288395][T10085] F2FS-fs (loop0): Try to recover 1th superblock, ret: 0
[  435.291547][T10085] F2FS-fs (loop0): Mounted with checkpoint version = 48b305e5
[  435.299652][   T34] audit: type=1800 audit(1785886815.714:1929): pid=10085 uid=0 auid=4294967295 ses=4294967295 subj=unconfined op=collect_data cause=failed(directio) comm="syz.0.982" name="file1" dev="loop0" ino=10 res=0 errno=0
[  435.328416][ T6041] CPU: 1 UID: 0 PID: 6041 Comm: syz-executor Not tainted syzkaller #0 PREEMPT(full) 
[  435.328436][ T6041] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
[  435.328445][ T6041] Call Trace:
[  435.328452][ T6041]  <TASK>
[  435.328478][ T6041]  dump_stack_lvl+0xe8/0x150
[  435.328501][ T6041]  f2fs_stop_checkpoint+0x3f6/0x5d0
[  435.328522][ T6041]  f2fs_write_end_io+0x124b/0x1710
[  435.328552][ T6041]  __submit_merged_bio+0x258/0x6a0
[  435.328567][ T6041]  ? rcu_is_watching+0x15/0xb0
[  435.328588][ T6041]  __submit_merged_write_cond+0x3c9/0x4e0
[  435.328609][ T6041]  ? __pfx___submit_merged_write_cond+0x10/0x10
[  435.328640][ T6041]  f2fs_write_data_pages+0x2a27/0x36f0
[  435.328656][ T6041]  ? __lock_acquire+0x683/0x2cf0
[  435.328694][ T6041]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  435.328743][ T6041]  ? __pfx_hlock_conflict+0x10/0x10
[  435.328754][ T6041]  ? __bfs+0x153/0x290
[  435.328768][ T6041]  ? __pfx_hlock_conflict+0x10/0x10
[  435.328792][ T6041]  ? lockdep_unlock+0x5d/0xd0
[  435.328805][ T6041]  ? __lock_acquire+0x13e8/0x2cf0
[  435.328838][ T6041]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  435.328855][ T6041]  do_writepages+0x338/0x560
[  435.328880][ T6041]  ? do_raw_spin_unlock+0x4d/0x210
[  435.328896][ T6041]  filemap_fdatawrite+0x1e9/0x2f0
[  435.328915][ T6041]  ? __pfx_filemap_fdatawrite+0x10/0x10
[  435.328961][ T6041]  ? do_raw_spin_unlock+0x4d/0x210
[  435.328978][ T6041]  f2fs_sync_dirty_inodes+0x30e/0x830
[  435.329006][ T6041]  f2fs_write_checkpoint+0xa3d/0x2710
[  435.329046][ T6041]  ? __pfx_f2fs_write_checkpoint+0x10/0x10
[  435.329128][ T6041]  kill_f2fs_super+0x2dd/0x700
[  435.329154][ T6041]  ? __pfx_kill_f2fs_super+0x10/0x10
[  435.329179][ T6041]  ? call_rcu+0x64b/0x8b0
[  435.329190][ T6041]  ? lockdep_hardirqs_on+0x7a/0x110
[  435.329215][ T6041]  deactivate_locked_super+0xbc/0x110
[  435.329233][ T6041]  cleanup_mnt+0x3d3/0x460
[  435.329249][ T6041]  task_work_run+0x1d9/0x270
[  435.329269][ T6041]  ? __pfx_task_work_run+0x10/0x10
[  435.329293][ T6041]  exit_to_user_mode_loop+0x1fa/0x730
[  435.329308][ T6041]  ? rcu_is_watching+0x15/0xb0
[  435.329325][ T6041]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  435.329346][ T6041]  do_syscall_64+0x353/0x580
[  435.329360][ T6041]  ? trace_irq_disable+0x3b/0x140
[  435.329379][ T6041]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  435.329391][ T6041] RIP: 0033:0x7fc736b9f257
[  435.329405][ T6041] Code: a2 c7 05 9c 44 25 00 00 00 00 00 eb 96 e8 e1 12 00 00 90 31 f6 e9 09 00 00 00 66 0f 1f 84 00 00 00 00 00 b8 a6 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 01 c3 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8
[  435.329402][   T34] audit: type=1800 audit(1785886815.714:1930): pid=10085 uid=0 auid=4294967295 ses=4294967295 subj=unconfined op=collect_data cause=failed(directio) comm="syz.0.982" name="file1" dev="loop0" ino=10 res=0 errno=0
[  435.329416][ T6041] RSP: 002b:00007fffd6f1ae68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
[  435.329432][ T6041] RAX: 0000000000000000 RBX: 00007fc736c3445c RCX: 00007fc736b9f257
[  435.329442][ T6041] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007fffd6f1af20
[  435.329450][ T6041] RBP: 00007fffd6f1af20 R08: 00007fffd6f1bf20 R09: 00000000ffffffff
[  435.329459][ T6041] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fffd6f1bfb0
[  435.329467][ T6041] R13: 00007fc736c3445c R14: 000000000006a135 R15: 00007fffd6f1bff0
[  435.329491][ T6041]  </TASK>
[  435.335720][ T6041] F2FS-fs (loop0): Stopped filesystem due to reason: 3
[  435.738859][T10095] F2FS-fs (loop2): Small segment_count (9 < 1 * 24)
[  435.749376][T10095] F2FS-fs (loop2): Can't find valid F2FS filesystem in 1th superblock
[  435.784460][T10095] F2FS-fs (loop2): f2fs_recover_fsync_data: recovery fsync data, check_only: 0
[  435.791005][T10095] F2FS-fs (loop2): Try to recover 1th superblock, ret: 0
[  435.793287][T10095] F2FS-fs (loop2): Mounted with checkpoint version = 48b305e5
[  435.797423][   T34] audit: type=1800 audit(1785886816.214:1931): pid=10095 uid=0 auid=4294967295 ses=4294967295 subj=unconfined op=collect_data cause=failed(directio) comm="syz.2.984" name="file1" dev="loop2" ino=10 res=0 errno=0
[  435.806384][   T34] audit: type=1800 audit(1785886816.234:1932): pid=10095 uid=0 auid=4294967295 ses=4294967295 subj=unconfined op=collect_data cause=failed(directio) comm="syz.2.984" name="file1" dev="loop2" ino=10 res=0 errno=0
[  435.824256][ T6048] CPU: 0 UID: 0 PID: 6048 Comm: syz-executor Not tainted syzkaller #0 PREEMPT(full) 
[  435.824270][ T6048] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
[  435.824275][ T6048] Call Trace:
[  435.824278][ T6048]  <TASK>
[  435.824282][ T6048]  dump_stack_lvl+0xe8/0x150
[  435.824297][ T6048]  f2fs_stop_checkpoint+0x3f6/0x5d0
[  435.824310][ T6048]  f2fs_write_end_io+0x124b/0x1710
[  435.824327][ T6048]  __submit_merged_bio+0x258/0x6a0
[  435.824335][ T6048]  ? rcu_is_watching+0x15/0xb0
[  435.824347][ T6048]  __submit_merged_write_cond+0x3c9/0x4e0
[  435.824359][ T6048]  ? __pfx___submit_merged_write_cond+0x10/0x10
[  435.824375][ T6048]  f2fs_write_data_pages+0x2a27/0x36f0
[  435.824395][ T6048]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  435.824419][ T6048]  ? __pfx_hlock_conflict+0x10/0x10
[  435.824425][ T6048]  ? __bfs+0x153/0x290
[  435.824433][ T6048]  ? __pfx_hlock_conflict+0x10/0x10
[  435.824445][ T6048]  ? lockdep_unlock+0x5d/0xd0
[  435.824453][ T6048]  ? __lock_acquire+0x13e8/0x2cf0
[  435.824470][ T6048]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  435.824479][ T6048]  do_writepages+0x338/0x560
[  435.824496][ T6048]  ? do_raw_spin_unlock+0x4d/0x210
[  435.824505][ T6048]  filemap_fdatawrite+0x1e9/0x2f0
[  435.824516][ T6048]  ? __pfx_filemap_fdatawrite+0x10/0x10
[  435.824540][ T6048]  ? do_raw_spin_unlock+0x4d/0x210
[  435.824549][ T6048]  f2fs_sync_dirty_inodes+0x30e/0x830
[  435.824564][ T6048]  f2fs_write_checkpoint+0xa3d/0x2710
[  435.824585][ T6048]  ? __pfx_f2fs_write_checkpoint+0x10/0x10
[  435.824612][ T6048]  kill_f2fs_super+0x2dd/0x700
[  435.824624][ T6048]  ? __pfx_kill_f2fs_super+0x10/0x10
[  435.824638][ T6048]  ? call_rcu+0x64b/0x8b0
[  435.824644][ T6048]  ? lockdep_hardirqs_on+0x7a/0x110
[  435.824657][ T6048]  deactivate_locked_super+0xbc/0x110
[  435.824668][ T6048]  cleanup_mnt+0x3d3/0x460
[  435.824677][ T6048]  task_work_run+0x1d9/0x270
[  435.824688][ T6048]  ? __pfx_task_work_run+0x10/0x10
[  435.824701][ T6048]  exit_to_user_mode_loop+0x1fa/0x730
[  435.824710][ T6048]  ? rcu_is_watching+0x15/0xb0
[  435.824720][ T6048]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  435.824728][ T6048]  do_syscall_64+0x353/0x580
[  435.824735][ T6048]  ? trace_irq_disable+0x3b/0x140
[  435.824746][ T6048]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  435.824753][ T6048] RIP: 0033:0x7fc5e679f257
[  435.824761][ T6048] Code: a2 c7 05 9c 44 25 00 00 00 00 00 eb 96 e8 e1 12 00 00 90 31 f6 e9 09 00 00 00 66 0f 1f 84 00 00 00 00 00 b8 a6 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 01 c3 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8
[  435.824767][ T6048] RSP: 002b:00007fff49366408 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
[  435.824776][ T6048] RAX: 0000000000000000 RBX: 00007fc5e683445c RCX: 00007fc5e679f257
[  435.824781][ T6048] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007fff493664c0
[  435.824785][ T6048] RBP: 00007fff493664c0 R08: 00007fff493674c0 R09: 00000000ffffffff
[  435.824790][ T6048] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fff49367550
[  435.824795][ T6048] R13: 00007fc5e683445c R14: 000000000006a5d3 R15: 00007fff49367590
[  435.824806][ T6048]  </TASK>
[  435.824809][ T6048] F2FS-fs (loop2): Stopped filesystem due to reason: 3
[  435.881615][T10093] F2FS-fs (loop1): Small segment_count (9 < 1 * 24)
[  435.960328][T10093] F2FS-fs (loop1): Can't find valid F2FS filesystem in 1th superblock
[  436.018751][T10093] F2FS-fs (loop1): f2fs_recover_fsync_data: recovery fsync data, check_only: 0
[  436.025471][T10093] F2FS-fs (loop1): Try to recover 1th superblock, ret: 0
[  436.027932][T10093] F2FS-fs (loop1): Mounted with checkpoint version = 48b305e5
[  436.054682][ T6044] CPU: 0 UID: 0 PID: 6044 Comm: syz-executor Not tainted syzkaller #0 PREEMPT(full) 
[  436.054696][ T6044] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
[  436.054700][ T6044] Call Trace:
[  436.054704][ T6044]  <TASK>
[  436.054707][ T6044]  dump_stack_lvl+0xe8/0x150
[  436.054723][ T6044]  f2fs_stop_checkpoint+0x3f6/0x5d0
[  436.054734][ T6044]  f2fs_write_end_io+0x124b/0x1710
[  436.054752][ T6044]  __submit_merged_bio+0x258/0x6a0
[  436.054760][ T6044]  ? rcu_is_watching+0x15/0xb0
[  436.054773][ T6044]  __submit_merged_write_cond+0x3c9/0x4e0
[  436.054784][ T6044]  ? __pfx___submit_merged_write_cond+0x10/0x10
[  436.054800][ T6044]  f2fs_write_data_pages+0x2a27/0x36f0
[  436.054811][ T6044]  ? finish_task_switch+0x412/0xc60
[  436.054841][ T6044]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  436.054879][ T6044]  ? __pfx_hlock_conflict+0x10/0x10
[  436.054891][ T6044]  ? __bfs+0x153/0x290
[  436.054904][ T6044]  ? __pfx_hlock_conflict+0x10/0x10
[  436.054924][ T6044]  ? lockdep_unlock+0x5d/0xd0
[  436.054938][ T6044]  ? __lock_acquire+0x13e8/0x2cf0
[  436.054968][ T6044]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  436.054991][ T6044]  do_writepages+0x338/0x560
[  436.055005][ T6044]  ? do_raw_spin_unlock+0x4d/0x210
[  436.055014][ T6044]  filemap_fdatawrite+0x1e9/0x2f0
[  436.055025][ T6044]  ? __pfx_filemap_fdatawrite+0x10/0x10
[  436.055049][ T6044]  ? do_raw_spin_unlock+0x4d/0x210
[  436.055058][ T6044]  f2fs_sync_dirty_inodes+0x30e/0x830
[  436.055119][ T6044]  f2fs_write_checkpoint+0xa3d/0x2710
[  436.055141][ T6044]  ? __pfx_f2fs_write_checkpoint+0x10/0x10
[  436.055169][ T6044]  kill_f2fs_super+0x2dd/0x700
[  436.055182][ T6044]  ? __pfx_kill_f2fs_super+0x10/0x10
[  436.055196][ T6044]  ? call_rcu+0x64b/0x8b0
[  436.055202][ T6044]  ? lockdep_hardirqs_on+0x7a/0x110
[  436.055216][ T6044]  deactivate_locked_super+0xbc/0x110
[  436.055227][ T6044]  cleanup_mnt+0x3d3/0x460
[  436.055236][ T6044]  task_work_run+0x1d9/0x270
[  436.055248][ T6044]  ? __pfx_task_work_run+0x10/0x10
[  436.055262][ T6044]  exit_to_user_mode_loop+0x1fa/0x730
[  436.055270][ T6044]  ? rcu_is_watching+0x15/0xb0
[  436.055280][ T6044]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  436.055288][ T6044]  do_syscall_64+0x353/0x580
[  436.055296][ T6044]  ? trace_irq_disable+0x3b/0x140
[  436.055307][ T6044]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  436.055314][ T6044] RIP: 0033:0x7fc4dff9f257
[  436.055322][ T6044] Code: a2 c7 05 9c 44 25 00 00 00 00 00 eb 96 e8 e1 12 00 00 90 31 f6 e9 09 00 00 00 66 0f 1f 84 00 00 00 00 00 b8 a6 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 01 c3 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8
[  436.055329][ T6044] RSP: 002b:00007fff836538d8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
[  436.055342][ T6044] RAX: 0000000000000000 RBX: 00007fc4e003445c RCX: 00007fc4dff9f257
[  436.055349][ T6044] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007fff83653990
[  436.055355][ T6044] RBP: 00007fff83653990 R08: 00007fff83654990 R09: 00000000ffffffff
[  436.055362][ T6044] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fff83654a20
[  436.055369][ T6044] R13: 00007fc4e003445c R14: 000000000006a6bb R15: 00007fff83654a60
[  436.055387][ T6044]  </TASK>
[  436.056099][ T6044] F2FS-fs (loop1): Stopped filesystem due to reason: 3
[  436.084295][T10097] F2FS-fs (loop0): Small segment_count (9 < 1 * 24)
[  436.201142][T10097] F2FS-fs (loop0): Can't find valid F2FS filesystem in 1th superblock
[  436.278777][T10097] F2FS-fs (loop0): f2fs_recover_fsync_data: recovery fsync data, check_only: 0
[  436.291371][T10097] F2FS-fs (loop0): Try to recover 1th superblock, ret: 0
[  436.294399][T10097] F2FS-fs (loop0): Mounted with checkpoint version = 48b305e5
[  436.334206][ T6041] CPU: 1 UID: 0 PID: 6041 Comm: syz-executor Not tainted syzkaller #0 PREEMPT(full) 
[  436.334229][ T6041] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
[  436.334237][ T6041] Call Trace:
[  436.334243][ T6041]  <TASK>
[  436.334249][ T6041]  dump_stack_lvl+0xe8/0x150
[  436.334272][ T6041]  f2fs_stop_checkpoint+0x3f6/0x5d0
[  436.334293][ T6041]  f2fs_write_end_io+0x124b/0x1710
[  436.334325][ T6041]  __submit_merged_bio+0x258/0x6a0
[  436.334340][ T6041]  ? rcu_is_watching+0x15/0xb0
[  436.334362][ T6041]  __submit_merged_write_cond+0x3c9/0x4e0
[  436.334384][ T6041]  ? __pfx___submit_merged_write_cond+0x10/0x10
[  436.334417][ T6041]  f2fs_write_data_pages+0x2a27/0x36f0
[  436.334434][ T6041]  ? __lock_acquire+0x683/0x2cf0
[  436.334473][ T6041]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  436.334522][ T6041]  ? __pfx_hlock_conflict+0x10/0x10
[  436.334533][ T6041]  ? __bfs+0x153/0x290
[  436.334547][ T6041]  ? __pfx_hlock_conflict+0x10/0x10
[  436.334571][ T6041]  ? lockdep_unlock+0x5d/0xd0
[  436.334585][ T6041]  ? __lock_acquire+0x13e8/0x2cf0
[  436.334620][ T6041]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  436.334637][ T6041]  do_writepages+0x338/0x560
[  436.334662][ T6041]  ? do_raw_spin_unlock+0x4d/0x210
[  436.334679][ T6041]  filemap_fdatawrite+0x1e9/0x2f0
[  436.334699][ T6041]  ? __pfx_filemap_fdatawrite+0x10/0x10
[  436.334774][ T6041]  ? do_raw_spin_unlock+0x4d/0x210
[  436.334790][ T6041]  f2fs_sync_dirty_inodes+0x30e/0x830
[  436.334820][ T6041]  f2fs_write_checkpoint+0xa3d/0x2710
[  436.334861][ T6041]  ? __pfx_f2fs_write_checkpoint+0x10/0x10
[  436.334918][ T6041]  kill_f2fs_super+0x2dd/0x700
[  436.334948][ T6041]  ? __pfx_kill_f2fs_super+0x10/0x10
[  436.334974][ T6041]  ? call_rcu+0x64b/0x8b0
[  436.334986][ T6041]  ? lockdep_hardirqs_on+0x7a/0x110
[  436.335010][ T6041]  deactivate_locked_super+0xbc/0x110
[  436.335030][ T6041]  cleanup_mnt+0x3d3/0x460
[  436.335047][ T6041]  task_work_run+0x1d9/0x270
[  436.335095][ T6041]  ? __pfx_task_work_run+0x10/0x10
[  436.335123][ T6041]  exit_to_user_mode_loop+0x1fa/0x730
[  436.335138][ T6041]  ? rcu_is_watching+0x15/0xb0
[  436.335155][ T6041]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  436.335170][ T6041]  do_syscall_64+0x353/0x580
[  436.335183][ T6041]  ? trace_irq_disable+0x3b/0x140
[  436.335203][ T6041]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  436.335214][ T6041] RIP: 0033:0x7fc736b9f257
[  436.335227][ T6041] Code: a2 c7 05 9c 44 25 00 00 00 00 00 eb 96 e8 e1 12 00 00 90 31 f6 e9 09 00 00 00 66 0f 1f 84 00 00 00 00 00 b8 a6 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 01 c3 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8
[  436.335237][ T6041] RSP: 002b:00007fffd6f1ae68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
[  436.335251][ T6041] RAX: 0000000000000000 RBX: 00007fc736c3445c RCX: 00007fc736b9f257
[  436.335259][ T6041] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007fffd6f1af20
[  436.335266][ T6041] RBP: 00007fffd6f1af20 R08: 00007fffd6f1bf20 R09: 00000000ffffffff
[  436.335274][ T6041] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fffd6f1bfb0
[  436.335282][ T6041] R13: 00007fc736c3445c R14: 000000000006a7d1 R15: 00007fffd6f1bff0
[  436.335303][ T6041]  </TASK>
[  436.462637][ T6041] F2FS-fs (loop0): Stopped filesystem due to reason: 3
[  436.592553][T10105] F2FS-fs (loop2): Small segment_count (9 < 1 * 24)
[  436.595424][T10105] F2FS-fs (loop2): Can't find valid F2FS filesystem in 1th superblock
[  436.667327][T10105] F2FS-fs (loop2): f2fs_recover_fsync_data: recovery fsync data, check_only: 0
[  436.691223][T10105] F2FS-fs (loop2): Try to recover 1th superblock, ret: 0
[  436.697994][T10105] F2FS-fs (loop2): Mounted with checkpoint version = 48b305e5
[  436.752738][ T6048] CPU: 1 UID: 0 PID: 6048 Comm: syz-executor Not tainted syzkaller #0 PREEMPT(full) 
[  436.752763][ T6048] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
[  436.752771][ T6048] Call Trace:
[  436.752777][ T6048]  <TASK>
[  436.752783][ T6048]  dump_stack_lvl+0xe8/0x150
[  436.752808][ T6048]  f2fs_stop_checkpoint+0x3f6/0x5d0
[  436.752830][ T6048]  f2fs_write_end_io+0x124b/0x1710
[  436.752863][ T6048]  __submit_merged_bio+0x258/0x6a0
[  436.752876][ T6048]  ? rcu_is_watching+0x15/0xb0
[  436.752897][ T6048]  __submit_merged_write_cond+0x3c9/0x4e0
[  436.752917][ T6048]  ? __pfx___submit_merged_write_cond+0x10/0x10
[  436.752949][ T6048]  f2fs_write_data_pages+0x2a27/0x36f0
[  436.752964][ T6048]  ? __lock_acquire+0x683/0x2cf0
[  436.753005][ T6048]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  436.753054][ T6048]  ? __pfx_hlock_conflict+0x10/0x10
[  436.753100][ T6048]  ? __bfs+0x153/0x290
[  436.753113][ T6048]  ? __pfx_hlock_conflict+0x10/0x10
[  436.753137][ T6048]  ? lockdep_unlock+0x5d/0xd0
[  436.753149][ T6048]  ? __lock_acquire+0x13e8/0x2cf0
[  436.753182][ T6048]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  436.753205][ T6048]  do_writepages+0x338/0x560
[  436.753229][ T6048]  ? do_raw_spin_unlock+0x4d/0x210
[  436.753245][ T6048]  filemap_fdatawrite+0x1e9/0x2f0
[  436.753264][ T6048]  ? __pfx_filemap_fdatawrite+0x10/0x10
[  436.753313][ T6048]  ? do_raw_spin_unlock+0x4d/0x210
[  436.753328][ T6048]  f2fs_sync_dirty_inodes+0x30e/0x830
[  436.753356][ T6048]  f2fs_write_checkpoint+0xa3d/0x2710
[  436.753397][ T6048]  ? __pfx_f2fs_write_checkpoint+0x10/0x10
[  436.753453][ T6048]  kill_f2fs_super+0x2dd/0x700
[  436.753476][ T6048]  ? __pfx_kill_f2fs_super+0x10/0x10
[  436.753501][ T6048]  ? call_rcu+0x64b/0x8b0
[  436.753511][ T6048]  ? lockdep_hardirqs_on+0x7a/0x110
[  436.753560][ T6048]  deactivate_locked_super+0xbc/0x110
[  436.753580][ T6048]  cleanup_mnt+0x3d3/0x460
[  436.753597][ T6048]  task_work_run+0x1d9/0x270
[  436.753617][ T6048]  ? __pfx_task_work_run+0x10/0x10
[  436.753640][ T6048]  exit_to_user_mode_loop+0x1fa/0x730
[  436.753655][ T6048]  ? rcu_is_watching+0x15/0xb0
[  436.753670][ T6048]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  436.753683][ T6048]  do_syscall_64+0x353/0x580
[  436.753697][ T6048]  ? trace_irq_disable+0x3b/0x140
[  436.753716][ T6048]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  436.753727][ T6048] RIP: 0033:0x7fc5e679f257
[  436.753740][ T6048] Code: a2 c7 05 9c 44 25 00 00 00 00 00 eb 96 e8 e1 12 00 00 90 31 f6 e9 09 00 00 00 66 0f 1f 84 00 00 00 00 00 b8 a6 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 01 c3 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8
[  436.753751][ T6048] RSP: 002b:00007fff49366408 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
[  436.753766][ T6048] RAX: 0000000000000000 RBX: 00007fc5e683445c RCX: 00007fc5e679f257
[  436.753773][ T6048] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007fff493664c0
[  436.753780][ T6048] RBP: 00007fff493664c0 R08: 00007fff493674c0 R09: 00000000ffffffff
[  436.753788][ T6048] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fff49367550
[  436.753795][ T6048] R13: 00007fc5e683445c R14: 000000000006a96d R15: 00007fff49367590
[  436.753817][ T6048]  </TASK>
[  436.755313][ T6048] F2FS-fs (loop2): Stopped filesystem due to reason: 3
[  437.123371][T10109] F2FS-fs (loop1): Small segment_count (9 < 1 * 24)
[  437.138858][T10109] F2FS-fs (loop1): Can't find valid F2FS filesystem in 1th superblock
[  437.210649][T10109] F2FS-fs (loop1): f2fs_recover_fsync_data: recovery fsync data, check_only: 0
[  437.219495][T10109] F2FS-fs (loop1): Try to recover 1th superblock, ret: 0
[  437.222499][T10109] F2FS-fs (loop1): Mounted with checkpoint version = 48b305e5
[  437.244403][ T6044] CPU: 0 UID: 0 PID: 6044 Comm: syz-executor Not tainted syzkaller #0 PREEMPT(full) 
[  437.244419][ T6044] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
[  437.244424][ T6044] Call Trace:
[  437.244427][ T6044]  <TASK>
[  437.244431][ T6044]  dump_stack_lvl+0xe8/0x150
[  437.244445][ T6044]  f2fs_stop_checkpoint+0x3f6/0x5d0
[  437.244457][ T6044]  f2fs_write_end_io+0x124b/0x1710
[  437.244474][ T6044]  __submit_merged_bio+0x258/0x6a0
[  437.244483][ T6044]  ? rcu_is_watching+0x15/0xb0
[  437.244495][ T6044]  __submit_merged_write_cond+0x3c9/0x4e0
[  437.244507][ T6044]  ? __pfx___submit_merged_write_cond+0x10/0x10
[  437.244522][ T6044]  f2fs_write_data_pages+0x2a27/0x36f0
[  437.244544][ T6044]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  437.244568][ T6044]  ? __pfx_hlock_conflict+0x10/0x10
[  437.244577][ T6044]  ? __bfs+0x153/0x290
[  437.244590][ T6044]  ? __pfx_hlock_conflict+0x10/0x10
[  437.244608][ T6044]  ? lockdep_unlock+0x5d/0xd0
[  437.244642][ T6044]  ? __lock_acquire+0x13e8/0x2cf0
[  437.244672][ T6044]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  437.244686][ T6044]  do_writepages+0x338/0x560
[  437.244700][ T6044]  ? do_raw_spin_unlock+0x4d/0x210
[  437.244710][ T6044]  filemap_fdatawrite+0x1e9/0x2f0
[  437.244721][ T6044]  ? __pfx_filemap_fdatawrite+0x10/0x10
[  437.244746][ T6044]  ? do_raw_spin_unlock+0x4d/0x210
[  437.244755][ T6044]  f2fs_sync_dirty_inodes+0x30e/0x830
[  437.244771][ T6044]  f2fs_write_checkpoint+0xa3d/0x2710
[  437.244792][ T6044]  ? __pfx_f2fs_write_checkpoint+0x10/0x10
[  437.244820][ T6044]  kill_f2fs_super+0x2dd/0x700
[  437.244833][ T6044]  ? __pfx_kill_f2fs_super+0x10/0x10
[  437.244847][ T6044]  ? call_rcu+0x64b/0x8b0
[  437.244853][ T6044]  ? lockdep_hardirqs_on+0x7a/0x110
[  437.244867][ T6044]  deactivate_locked_super+0xbc/0x110
[  437.244877][ T6044]  cleanup_mnt+0x3d3/0x460
[  437.244886][ T6044]  task_work_run+0x1d9/0x270
[  437.244898][ T6044]  ? __pfx_task_work_run+0x10/0x10
[  437.244916][ T6044]  exit_to_user_mode_loop+0x1fa/0x730
[  437.244925][ T6044]  ? rcu_is_watching+0x15/0xb0
[  437.244935][ T6044]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  437.244943][ T6044]  do_syscall_64+0x353/0x580
[  437.244951][ T6044]  ? trace_irq_disable+0x3b/0x140
[  437.244962][ T6044]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  437.244969][ T6044] RIP: 0033:0x7fc4dff9f257
[  437.244977][ T6044] Code: a2 c7 05 9c 44 25 00 00 00 00 00 eb 96 e8 e1 12 00 00 90 31 f6 e9 09 00 00 00 66 0f 1f 84 00 00 00 00 00 b8 a6 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 01 c3 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8
[  437.244983][ T6044] RSP: 002b:00007fff836538d8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
[  437.244992][ T6044] RAX: 0000000000000000 RBX: 00007fc4e003445c RCX: 00007fc4dff9f257
[  437.244997][ T6044] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007fff83653990
[  437.245001][ T6044] RBP: 00007fff83653990 R08: 00007fff83654990 R09: 00000000ffffffff
[  437.245006][ T6044] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fff83654a20
[  437.245011][ T6044] R13: 00007fc4e003445c R14: 000000000006ab5b R15: 00007fff83654a60
[  437.245022][ T6044]  </TASK>
[  437.245742][ T6044] F2FS-fs (loop1): Stopped filesystem due to reason: 3
[  437.283429][T10115] set_capacity_and_notify: 5 callbacks suppressed
[  437.283439][T10115] loop0: detected capacity change from 0 to 40427
[  437.367767][T10115] F2FS-fs (loop0): Small segment_count (9 < 1 * 24)
[  437.370595][T10115] F2FS-fs (loop0): Can't find valid F2FS filesystem in 1th superblock
[  437.403854][T10115] F2FS-fs (loop0): f2fs_recover_fsync_data: recovery fsync data, check_only: 0
[  437.409516][T10115] F2FS-fs (loop0): Try to recover 1th superblock, ret: 0
[  437.411677][T10115] F2FS-fs (loop0): Mounted with checkpoint version = 48b305e5
[  437.428191][T10115] bio_check_eod: 34 callbacks suppressed
[  437.428208][T10115] syz.0.988: attempt to access beyond end of device
[  437.428208][T10115] loop0: rw=2049, sector=53248, nr_sectors = 976 limit=40427
[  437.436936][T10115] syz.0.988: attempt to access beyond end of device
[  437.436936][T10115] loop0: rw=8423425, sector=54224, nr_sectors = 8 limit=40427
[  437.465626][ T6041] syz-executor: attempt to access beyond end of device
[  437.465626][ T6041] loop0: rw=2049, sector=45096, nr_sectors = 8 limit=40427
[  437.506672][ T6041] CPU: 0 UID: 0 PID: 6041 Comm: syz-executor Not tainted syzkaller #0 PREEMPT(full) 
[  437.506693][ T6041] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
[  437.506702][ T6041] Call Trace:
[  437.506708][ T6041]  <TASK>
[  437.506714][ T6041]  dump_stack_lvl+0xe8/0x150
[  437.506737][ T6041]  f2fs_stop_checkpoint+0x3f6/0x5d0
[  437.506758][ T6041]  f2fs_write_end_io+0x124b/0x1710
[  437.506789][ T6041]  __submit_merged_bio+0x258/0x6a0
[  437.506804][ T6041]  ? rcu_is_watching+0x15/0xb0
[  437.506827][ T6041]  __submit_merged_write_cond+0x3c9/0x4e0
[  437.506849][ T6041]  ? __pfx___submit_merged_write_cond+0x10/0x10
[  437.506880][ T6041]  f2fs_write_data_pages+0x2a27/0x36f0
[  437.506921][ T6041]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  437.506969][ T6041]  ? __pfx_hlock_conflict+0x10/0x10
[  437.506979][ T6041]  ? __bfs+0x153/0x290
[  437.506994][ T6041]  ? __pfx_hlock_conflict+0x10/0x10
[  437.507018][ T6041]  ? lockdep_unlock+0x5d/0xd0
[  437.507032][ T6041]  ? __lock_acquire+0x13e8/0x2cf0
[  437.507099][ T6041]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  437.507119][ T6041]  do_writepages+0x338/0x560
[  437.507144][ T6041]  ? do_raw_spin_unlock+0x4d/0x210
[  437.507161][ T6041]  filemap_fdatawrite+0x1e9/0x2f0
[  437.507180][ T6041]  ? __pfx_filemap_fdatawrite+0x10/0x10
[  437.507228][ T6041]  ? do_raw_spin_unlock+0x4d/0x210
[  437.507245][ T6041]  f2fs_sync_dirty_inodes+0x30e/0x830
[  437.507272][ T6041]  f2fs_write_checkpoint+0xa3d/0x2710
[  437.507312][ T6041]  ? __pfx_f2fs_write_checkpoint+0x10/0x10
[  437.507385][ T6041]  kill_f2fs_super+0x2dd/0x700
[  437.507411][ T6041]  ? __pfx_kill_f2fs_super+0x10/0x10
[  437.507435][ T6041]  ? call_rcu+0x64b/0x8b0
[  437.507447][ T6041]  ? lockdep_hardirqs_on+0x7a/0x110
[  437.507476][ T6041]  deactivate_locked_super+0xbc/0x110
[  437.507495][ T6041]  cleanup_mnt+0x3d3/0x460
[  437.507512][ T6041]  task_work_run+0x1d9/0x270
[  437.507532][ T6041]  ? __pfx_task_work_run+0x10/0x10
[  437.507557][ T6041]  exit_to_user_mode_loop+0x1fa/0x730
[  437.507572][ T6041]  ? rcu_is_watching+0x15/0xb0
[  437.507590][ T6041]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  437.507603][ T6041]  do_syscall_64+0x353/0x580
[  437.507616][ T6041]  ? trace_irq_disable+0x3b/0x140
[  437.507634][ T6041]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  437.507646][ T6041] RIP: 0033:0x7fc736b9f257
[  437.507659][ T6041] Code: a2 c7 05 9c 44 25 00 00 00 00 00 eb 96 e8 e1 12 00 00 90 31 f6 e9 09 00 00 00 66 0f 1f 84 00 00 00 00 00 b8 a6 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 01 c3 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8
[  437.507669][ T6041] RSP: 002b:00007fffd6f1ae68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
[  437.507684][ T6041] RAX: 0000000000000000 RBX: 00007fc736c3445c RCX: 00007fc736b9f257
[  437.507692][ T6041] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007fffd6f1af20
[  437.507699][ T6041] RBP: 00007fffd6f1af20 R08: 00007fffd6f1bf20 R09: 00000000ffffffff
[  437.507707][ T6041] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fffd6f1bfb0
[  437.507715][ T6041] R13: 00007fc736c3445c R14: 000000000006ac38 R15: 00007fffd6f1bff0
[  437.507736][ T6041]  </TASK>
[  437.509585][ T6041] F2FS-fs (loop0): Stopped filesystem due to reason: 3
[  437.568642][T10118] loop2: detected capacity change from 0 to 40427
[  437.639417][T10118] F2FS-fs (loop2): Small segment_count (9 < 1 * 24)
[  437.641954][T10118] F2FS-fs (loop2): Can't find valid F2FS filesystem in 1th superblock
[  437.741350][T10118] F2FS-fs (loop2): f2fs_recover_fsync_data: recovery fsync data, check_only: 0
[  437.763914][T10118] F2FS-fs (loop2): Try to recover 1th superblock, ret: 0
[  437.781346][T10118] F2FS-fs (loop2): Mounted with checkpoint version = 48b305e5
[  437.802675][T10118] syz.2.989: attempt to access beyond end of device
[  437.802675][T10118] loop2: rw=2049, sector=53248, nr_sectors = 976 limit=40427
[  437.809997][T10118] syz.2.989: attempt to access beyond end of device
[  437.809997][T10118] loop2: rw=8423425, sector=54224, nr_sectors = 8 limit=40427
[  437.822724][ T6048] syz-executor: attempt to access beyond end of device
[  437.822724][ T6048] loop2: rw=2049, sector=45096, nr_sectors = 8 limit=40427
[  437.831435][ T6048] CPU: 1 UID: 0 PID: 6048 Comm: syz-executor Not tainted syzkaller #0 PREEMPT(full) 
[  437.831458][ T6048] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
[  437.831466][ T6048] Call Trace:
[  437.831473][ T6048]  <TASK>
[  437.831478][ T6048]  dump_stack_lvl+0xe8/0x150
[  437.831505][ T6048]  f2fs_stop_checkpoint+0x3f6/0x5d0
[  437.831526][ T6048]  f2fs_write_end_io+0x124b/0x1710
[  437.831556][ T6048]  __submit_merged_bio+0x258/0x6a0
[  437.831570][ T6048]  ? rcu_is_watching+0x15/0xb0
[  437.831591][ T6048]  __submit_merged_write_cond+0x3c9/0x4e0
[  437.831611][ T6048]  ? __pfx___submit_merged_write_cond+0x10/0x10
[  437.831642][ T6048]  f2fs_write_data_pages+0x2a27/0x36f0
[  437.831658][ T6048]  ? __lock_acquire+0x683/0x2cf0
[  437.831698][ T6048]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  437.831744][ T6048]  ? __pfx_hlock_conflict+0x10/0x10
[  437.831757][ T6048]  ? __bfs+0x153/0x290
[  437.831769][ T6048]  ? __pfx_hlock_conflict+0x10/0x10
[  437.831792][ T6048]  ? lockdep_unlock+0x5d/0xd0
[  437.831806][ T6048]  ? __lock_acquire+0x13e8/0x2cf0
[  437.831840][ T6048]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  437.831857][ T6048]  do_writepages+0x338/0x560
[  437.831882][ T6048]  ? do_raw_spin_unlock+0x4d/0x210
[  437.831899][ T6048]  filemap_fdatawrite+0x1e9/0x2f0
[  437.831918][ T6048]  ? __pfx_filemap_fdatawrite+0x10/0x10
[  437.831966][ T6048]  ? do_raw_spin_unlock+0x4d/0x210
[  437.832003][ T6048]  f2fs_sync_dirty_inodes+0x30e/0x830
[  437.832034][ T6048]  f2fs_write_checkpoint+0xa3d/0x2710
[  437.832106][ T6048]  ? __pfx_f2fs_write_checkpoint+0x10/0x10
[  437.832160][ T6048]  kill_f2fs_super+0x2dd/0x700
[  437.832184][ T6048]  ? __pfx_kill_f2fs_super+0x10/0x10
[  437.832209][ T6048]  ? call_rcu+0x64b/0x8b0
[  437.832220][ T6048]  ? lockdep_hardirqs_on+0x7a/0x110
[  437.832242][ T6048]  deactivate_locked_super+0xbc/0x110
[  437.832262][ T6048]  cleanup_mnt+0x3d3/0x460
[  437.832277][ T6048]  task_work_run+0x1d9/0x270
[  437.832298][ T6048]  ? __pfx_task_work_run+0x10/0x10
[  437.832322][ T6048]  exit_to_user_mode_loop+0x1fa/0x730
[  437.832336][ T6048]  ? rcu_is_watching+0x15/0xb0
[  437.832353][ T6048]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  437.832366][ T6048]  do_syscall_64+0x353/0x580
[  437.832380][ T6048]  ? trace_irq_disable+0x3b/0x140
[  437.832399][ T6048]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  437.832410][ T6048] RIP: 0033:0x7fc5e679f257
[  437.832423][ T6048] Code: a2 c7 05 9c 44 25 00 00 00 00 00 eb 96 e8 e1 12 00 00 90 31 f6 e9 09 00 00 00 66 0f 1f 84 00 00 00 00 00 b8 a6 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 01 c3 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8
[  437.832433][ T6048] RSP: 002b:00007fff49366408 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
[  437.832448][ T6048] RAX: 0000000000000000 RBX: 00007fc5e683445c RCX: 00007fc5e679f257
[  437.832456][ T6048] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007fff493664c0
[  437.832463][ T6048] RBP: 00007fff493664c0 R08: 00007fff493674c0 R09: 00000000ffffffff
[  437.832471][ T6048] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fff49367550
[  437.832478][ T6048] R13: 00007fc5e683445c R14: 000000000006ad9e R15: 00007fff49367590
[  437.832498][ T6048]  </TASK>
[  437.833344][ T6048] F2FS-fs (loop2): Stopped filesystem due to reason: 3
[  438.007009][T10124] loop1: detected capacity change from 0 to 40427
[  438.025290][T10124] F2FS-fs (loop1): Small segment_count (9 < 1 * 24)
[  438.036480][T10124] F2FS-fs (loop1): Can't find valid F2FS filesystem in 1th superblock
[  438.144097][T10124] F2FS-fs (loop1): f2fs_recover_fsync_data: recovery fsync data, check_only: 0
[  438.172458][T10124] F2FS-fs (loop1): Try to recover 1th superblock, ret: 0
[  438.176079][T10124] F2FS-fs (loop1): Mounted with checkpoint version = 48b305e5
[  438.204407][T10124] syz.1.990: attempt to access beyond end of device
[  438.204407][T10124] loop1: rw=2049, sector=53248, nr_sectors = 976 limit=40427
[  438.218264][T10124] syz.1.990: attempt to access beyond end of device
[  438.218264][T10124] loop1: rw=8423425, sector=54224, nr_sectors = 8 limit=40427
[  438.233628][ T6044] syz-executor: attempt to access beyond end of device
[  438.233628][ T6044] loop1: rw=2049, sector=45096, nr_sectors = 8 limit=40427
[  438.246480][ T6044] CPU: 0 UID: 0 PID: 6044 Comm: syz-executor Not tainted syzkaller #0 PREEMPT(full) 
[  438.246501][ T6044] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
[  438.246509][ T6044] Call Trace:
[  438.246517][ T6044]  <TASK>
[  438.246523][ T6044]  dump_stack_lvl+0xe8/0x150
[  438.246546][ T6044]  f2fs_stop_checkpoint+0x3f6/0x5d0
[  438.246588][ T6044]  f2fs_write_end_io+0x124b/0x1710
[  438.246619][ T6044]  __submit_merged_bio+0x258/0x6a0
[  438.246635][ T6044]  ? rcu_is_watching+0x15/0xb0
[  438.246657][ T6044]  __submit_merged_write_cond+0x3c9/0x4e0
[  438.246679][ T6044]  ? __pfx___submit_merged_write_cond+0x10/0x10
[  438.246711][ T6044]  f2fs_write_data_pages+0x2a27/0x36f0
[  438.246729][ T6044]  ? __lock_acquire+0x683/0x2cf0
[  438.246768][ T6044]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  438.246814][ T6044]  ? __pfx_hlock_conflict+0x10/0x10
[  438.246833][ T6044]  ? __bfs+0x153/0x290
[  438.246848][ T6044]  ? __pfx_hlock_conflict+0x10/0x10
[  438.246871][ T6044]  ? lockdep_unlock+0x5d/0xd0
[  438.246885][ T6044]  ? __lock_acquire+0x13e8/0x2cf0
[  438.246918][ T6044]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  438.246936][ T6044]  do_writepages+0x338/0x560
[  438.246961][ T6044]  ? do_raw_spin_unlock+0x4d/0x210
[  438.246978][ T6044]  filemap_fdatawrite+0x1e9/0x2f0
[  438.246998][ T6044]  ? __pfx_filemap_fdatawrite+0x10/0x10
[  438.247070][ T6044]  ? do_raw_spin_unlock+0x4d/0x210
[  438.247088][ T6044]  f2fs_sync_dirty_inodes+0x30e/0x830
[  438.247116][ T6044]  f2fs_write_checkpoint+0xa3d/0x2710
[  438.247154][ T6044]  ? __pfx_f2fs_write_checkpoint+0x10/0x10
[  438.247208][ T6044]  kill_f2fs_super+0x2dd/0x700
[  438.247233][ T6044]  ? __pfx_kill_f2fs_super+0x10/0x10
[  438.247259][ T6044]  ? call_rcu+0x64b/0x8b0
[  438.247269][ T6044]  ? lockdep_hardirqs_on+0x7a/0x110
[  438.247295][ T6044]  deactivate_locked_super+0xbc/0x110
[  438.247313][ T6044]  cleanup_mnt+0x3d3/0x460
[  438.247330][ T6044]  task_work_run+0x1d9/0x270
[  438.247350][ T6044]  ? __pfx_task_work_run+0x10/0x10
[  438.247375][ T6044]  exit_to_user_mode_loop+0x1fa/0x730
[  438.247391][ T6044]  ? rcu_is_watching+0x15/0xb0
[  438.247409][ T6044]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  438.247421][ T6044]  do_syscall_64+0x353/0x580
[  438.247435][ T6044]  ? trace_irq_disable+0x3b/0x140
[  438.247453][ T6044]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  438.247464][ T6044] RIP: 0033:0x7fc4dff9f257
[  438.247476][ T6044] Code: a2 c7 05 9c 44 25 00 00 00 00 00 eb 96 e8 e1 12 00 00 90 31 f6 e9 09 00 00 00 66 0f 1f 84 00 00 00 00 00 b8 a6 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 01 c3 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8
[  438.247487][ T6044] RSP: 002b:00007fff836538d8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
[  438.247501][ T6044] RAX: 0000000000000000 RBX: 00007fc4e003445c RCX: 00007fc4dff9f257
[  438.247509][ T6044] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007fff83653990
[  438.247517][ T6044] RBP: 00007fff83653990 R08: 00007fff83654990 R09: 00000000ffffffff
[  438.247525][ T6044] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fff83654a20
[  438.247532][ T6044] R13: 00007fc4e003445c R14: 000000000006af38 R15: 00007fff83654a60
[  438.247554][ T6044]  </TASK>
[  438.367983][ T6044] F2FS-fs (loop1): Stopped filesystem due to reason: 3
[  438.378028][T10128] loop0: detected capacity change from 0 to 40427
[  438.382013][T10128] F2FS-fs (loop0): Small segment_count (9 < 1 * 24)
[  438.384598][T10128] F2FS-fs (loop0): Can't find valid F2FS filesystem in 1th superblock
[  438.462068][T10128] F2FS-fs (loop0): f2fs_recover_fsync_data: recovery fsync data, check_only: 0
[  438.468303][T10128] F2FS-fs (loop0): Try to recover 1th superblock, ret: 0
[  438.471255][T10128] F2FS-fs (loop0): Mounted with checkpoint version = 48b305e5
[  438.485195][T10128] syz.0.991: attempt to access beyond end of device
[  438.485195][T10128] loop0: rw=2049, sector=53248, nr_sectors = 976 limit=40427
[  438.504172][ T6041] CPU: 0 UID: 0 PID: 6041 Comm: syz-executor Not tainted syzkaller #0 PREEMPT(full) 
[  438.504194][ T6041] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
[  438.504202][ T6041] Call Trace:
[  438.504209][ T6041]  <TASK>
[  438.504215][ T6041]  dump_stack_lvl+0xe8/0x150
[  438.504238][ T6041]  f2fs_stop_checkpoint+0x3f6/0x5d0
[  438.504259][ T6041]  f2fs_write_end_io+0x124b/0x1710
[  438.504290][ T6041]  __submit_merged_bio+0x258/0x6a0
[  438.504307][ T6041]  ? rcu_is_watching+0x15/0xb0
[  438.504328][ T6041]  __submit_merged_write_cond+0x3c9/0x4e0
[  438.504348][ T6041]  ? __pfx___submit_merged_write_cond+0x10/0x10
[  438.504377][ T6041]  f2fs_write_data_pages+0x2a27/0x36f0
[  438.504394][ T6041]  ? __lock_acquire+0x683/0x2cf0
[  438.504431][ T6041]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  438.504472][ T6041]  ? __pfx_hlock_conflict+0x10/0x10
[  438.504484][ T6041]  ? __bfs+0x153/0x290
[  438.504498][ T6041]  ? __pfx_hlock_conflict+0x10/0x10
[  438.504521][ T6041]  ? lockdep_unlock+0x5d/0xd0
[  438.504533][ T6041]  ? __lock_acquire+0x13e8/0x2cf0
[  438.504564][ T6041]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  438.504580][ T6041]  do_writepages+0x338/0x560
[  438.504602][ T6041]  ? do_raw_spin_unlock+0x4d/0x210
[  438.504619][ T6041]  filemap_fdatawrite+0x1e9/0x2f0
[  438.504638][ T6041]  ? __pfx_filemap_fdatawrite+0x10/0x10
[  438.504680][ T6041]  ? do_raw_spin_unlock+0x4d/0x210
[  438.504695][ T6041]  f2fs_sync_dirty_inodes+0x30e/0x830
[  438.504723][ T6041]  f2fs_write_checkpoint+0xa3d/0x2710
[  438.504759][ T6041]  ? __pfx_f2fs_write_checkpoint+0x10/0x10
[  438.504807][ T6041]  kill_f2fs_super+0x2dd/0x700
[  438.504830][ T6041]  ? __pfx_kill_f2fs_super+0x10/0x10
[  438.504860][ T6041]  ? call_rcu+0x64b/0x8b0
[  438.504871][ T6041]  ? lockdep_hardirqs_on+0x7a/0x110
[  438.504894][ T6041]  deactivate_locked_super+0xbc/0x110
[  438.504913][ T6041]  cleanup_mnt+0x3d3/0x460
[  438.504929][ T6041]  task_work_run+0x1d9/0x270
[  438.504949][ T6041]  ? __pfx_task_work_run+0x10/0x10
[  438.504972][ T6041]  exit_to_user_mode_loop+0x1fa/0x730
[  438.504987][ T6041]  ? rcu_is_watching+0x15/0xb0
[  438.505004][ T6041]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  438.505016][ T6041]  do_syscall_64+0x353/0x580
[  438.505030][ T6041]  ? trace_irq_disable+0x3b/0x140
[  438.505077][ T6041]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  438.505091][ T6041] RIP: 0033:0x7fc736b9f257
[  438.505102][ T6041] Code: a2 c7 05 9c 44 25 00 00 00 00 00 eb 96 e8 e1 12 00 00 90 31 f6 e9 09 00 00 00 66 0f 1f 84 00 00 00 00 00 b8 a6 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 01 c3 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8
[  438.505110][ T6041] RSP: 002b:00007fffd6f1ae68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
[  438.505125][ T6041] RAX: 0000000000000000 RBX: 00007fc736c3445c RCX: 00007fc736b9f257
[  438.505133][ T6041] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007fffd6f1af20
[  438.505140][ T6041] RBP: 00007fffd6f1af20 R08: 00007fffd6f1bf20 R09: 00000000ffffffff
[  438.505148][ T6041] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fffd6f1bfb0
[  438.505155][ T6041] R13: 00007fc736c3445c R14: 000000000006b046 R15: 00007fffd6f1bff0
[  438.505176][ T6041]  </TASK>
[  438.505181][ T6041] F2FS-fs (loop0): Stopped filesystem due to reason: 3
[  438.920180][T10134] loop2: detected capacity change from 0 to 40427
[  438.929465][T10134] F2FS-fs (loop2): Small segment_count (9 < 1 * 24)
[  438.953819][T10134] F2FS-fs (loop2): Can't find valid F2FS filesystem in 1th superblock
[  439.008014][T10134] F2FS-fs (loop2): f2fs_recover_fsync_data: recovery fsync data, check_only: 0
[  439.016082][T10134] F2FS-fs (loop2): Try to recover 1th superblock, ret: 0
[  439.018942][T10134] F2FS-fs (loop2): Mounted with checkpoint version = 48b305e5
[  439.052259][ T6048] CPU: 1 UID: 0 PID: 6048 Comm: syz-executor Not tainted syzkaller #0 PREEMPT(full) 
[  439.052285][ T6048] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
[  439.052293][ T6048] Call Trace:
[  439.052299][ T6048]  <TASK>
[  439.052306][ T6048]  dump_stack_lvl+0xe8/0x150
[  439.052333][ T6048]  f2fs_stop_checkpoint+0x3f6/0x5d0
[  439.052354][ T6048]  f2fs_write_end_io+0x124b/0x1710
[  439.052387][ T6048]  __submit_merged_bio+0x258/0x6a0
[  439.052402][ T6048]  ? rcu_is_watching+0x15/0xb0
[  439.052425][ T6048]  __submit_merged_write_cond+0x3c9/0x4e0
[  439.052447][ T6048]  ? __pfx___submit_merged_write_cond+0x10/0x10
[  439.052479][ T6048]  f2fs_write_data_pages+0x2a27/0x36f0
[  439.052496][ T6048]  ? __lock_acquire+0x683/0x2cf0
[  439.052538][ T6048]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  439.052595][ T6048]  ? __pfx_hlock_conflict+0x10/0x10
[  439.052606][ T6048]  ? __bfs+0x153/0x290
[  439.052618][ T6048]  ? __pfx_hlock_conflict+0x10/0x10
[  439.052641][ T6048]  ? lockdep_unlock+0x5d/0xd0
[  439.052654][ T6048]  ? __lock_acquire+0x13e8/0x2cf0
[  439.052685][ T6048]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  439.052702][ T6048]  do_writepages+0x338/0x560
[  439.052728][ T6048]  ? do_raw_spin_unlock+0x4d/0x210
[  439.052746][ T6048]  filemap_fdatawrite+0x1e9/0x2f0
[  439.052766][ T6048]  ? __pfx_filemap_fdatawrite+0x10/0x10
[  439.052814][ T6048]  ? do_raw_spin_unlock+0x4d/0x210
[  439.052832][ T6048]  f2fs_sync_dirty_inodes+0x30e/0x830
[  439.052861][ T6048]  f2fs_write_checkpoint+0xa3d/0x2710
[  439.052903][ T6048]  ? __pfx_f2fs_write_checkpoint+0x10/0x10
[  439.052958][ T6048]  kill_f2fs_super+0x2dd/0x700
[  439.052982][ T6048]  ? __pfx_kill_f2fs_super+0x10/0x10
[  439.053008][ T6048]  ? call_rcu+0x64b/0x8b0
[  439.053019][ T6048]  ? lockdep_hardirqs_on+0x7a/0x110
[  439.053071][ T6048]  deactivate_locked_super+0xbc/0x110
[  439.053110][ T6048]  cleanup_mnt+0x3d3/0x460
[  439.053129][ T6048]  task_work_run+0x1d9/0x270
[  439.053151][ T6048]  ? __pfx_task_work_run+0x10/0x10
[  439.053176][ T6048]  exit_to_user_mode_loop+0x1fa/0x730
[  439.053192][ T6048]  ? rcu_is_watching+0x15/0xb0
[  439.053210][ T6048]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  439.053223][ T6048]  do_syscall_64+0x353/0x580
[  439.053237][ T6048]  ? trace_irq_disable+0x3b/0x140
[  439.053257][ T6048]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  439.053269][ T6048] RIP: 0033:0x7fc5e679f257
[  439.053283][ T6048] Code: a2 c7 05 9c 44 25 00 00 00 00 00 eb 96 e8 e1 12 00 00 90 31 f6 e9 09 00 00 00 66 0f 1f 84 00 00 00 00 00 b8 a6 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 01 c3 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8
[  439.053294][ T6048] RSP: 002b:00007fff49366408 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
[  439.053309][ T6048] RAX: 0000000000000000 RBX: 00007fc5e683445c RCX: 00007fc5e679f257
[  439.053317][ T6048] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007fff493664c0
[  439.053325][ T6048] RBP: 00007fff493664c0 R08: 00007fff493674c0 R09: 00000000ffffffff
[  439.053333][ T6048] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fff49367550
[  439.053340][ T6048] R13: 00007fc5e683445c R14: 000000000006b263 R15: 00007fff49367590
[  439.053362][ T6048]  </TASK>
[  439.054652][ T6048] F2FS-fs (loop2): Stopped filesystem due to reason: 3
[  439.135158][T10136] loop1: detected capacity change from 0 to 40427
[  439.225664][T10136] F2FS-fs (loop1): Small segment_count (9 < 1 * 24)
[  439.232489][T10136] F2FS-fs (loop1): Can't find valid F2FS filesystem in 1th superblock
[  439.352658][T10136] F2FS-fs (loop1): f2fs_recover_fsync_data: recovery fsync data, check_only: 0
[  439.371357][T10136] F2FS-fs (loop1): Try to recover 1th superblock, ret: 0
[  439.376702][T10136] F2FS-fs (loop1): Mounted with checkpoint version = 48b305e5
[  439.384497][   T34] kauditd_printk_skb: 18 callbacks suppressed
[  439.384509][   T34] audit: type=1800 audit(1785886819.804:1951): pid=10136 uid=0 auid=4294967295 ses=4294967295 subj=unconfined op=collect_data cause=failed(directio) comm="syz.1.993" name="file1" dev="loop1" ino=10 res=0 errno=0
[  439.404884][   T34] audit: type=1800 audit(1785886819.814:1952): pid=10136 uid=0 auid=4294967295 ses=4294967295 subj=unconfined op=collect_data cause=failed(directio) comm="syz.1.993" name="file1" dev="loop1" ino=10 res=0 errno=0
[  439.406460][T10140] loop0: detected capacity change from 0 to 40427
[  439.425266][ T6044] CPU: 1 UID: 0 PID: 6044 Comm: syz-executor Not tainted syzkaller #0 PREEMPT(full) 
[  439.425287][ T6044] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
[  439.425295][ T6044] Call Trace:
[  439.425302][ T6044]  <TASK>
[  439.425309][ T6044]  dump_stack_lvl+0xe8/0x150
[  439.425335][ T6044]  f2fs_stop_checkpoint+0x3f6/0x5d0
[  439.425357][ T6044]  f2fs_write_end_io+0x124b/0x1710
[  439.425390][ T6044]  __submit_merged_bio+0x258/0x6a0
[  439.425405][ T6044]  ? rcu_is_watching+0x15/0xb0
[  439.425428][ T6044]  __submit_merged_write_cond+0x3c9/0x4e0
[  439.425456][ T6044]  ? __pfx___submit_merged_write_cond+0x10/0x10
[  439.425488][ T6044]  f2fs_write_data_pages+0x2a27/0x36f0
[  439.425505][ T6044]  ? __lock_acquire+0x683/0x2cf0
[  439.425547][ T6044]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  439.425596][ T6044]  ? __pfx_hlock_conflict+0x10/0x10
[  439.425607][ T6044]  ? __bfs+0x153/0x290
[  439.425621][ T6044]  ? __pfx_hlock_conflict+0x10/0x10
[  439.425652][ T6044]  ? lockdep_unlock+0x5d/0xd0
[  439.425665][ T6044]  ? __lock_acquire+0x13e8/0x2cf0
[  439.425700][ T6044]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  439.425718][ T6044]  do_writepages+0x338/0x560
[  439.425744][ T6044]  ? do_raw_spin_unlock+0x4d/0x210
[  439.425761][ T6044]  filemap_fdatawrite+0x1e9/0x2f0
[  439.425781][ T6044]  ? __pfx_filemap_fdatawrite+0x10/0x10
[  439.425830][ T6044]  ? do_raw_spin_unlock+0x4d/0x210
[  439.425846][ T6044]  f2fs_sync_dirty_inodes+0x30e/0x830
[  439.425874][ T6044]  f2fs_write_checkpoint+0xa3d/0x2710
[  439.425912][ T6044]  ? __pfx_f2fs_write_checkpoint+0x10/0x10
[  439.425964][ T6044]  kill_f2fs_super+0x2dd/0x700
[  439.425990][ T6044]  ? __pfx_kill_f2fs_super+0x10/0x10
[  439.426016][ T6044]  ? call_rcu+0x64b/0x8b0
[  439.426055][ T6044]  ? lockdep_hardirqs_on+0x7a/0x110
[  439.426081][ T6044]  deactivate_locked_super+0xbc/0x110
[  439.426102][ T6044]  cleanup_mnt+0x3d3/0x460
[  439.426119][ T6044]  task_work_run+0x1d9/0x270
[  439.426140][ T6044]  ? __pfx_task_work_run+0x10/0x10
[  439.426165][ T6044]  exit_to_user_mode_loop+0x1fa/0x730
[  439.426180][ T6044]  ? rcu_is_watching+0x15/0xb0
[  439.426199][ T6044]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  439.426213][ T6044]  do_syscall_64+0x353/0x580
[  439.426226][ T6044]  ? trace_irq_disable+0x3b/0x140
[  439.426246][ T6044]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  439.426259][ T6044] RIP: 0033:0x7fc4dff9f257
[  439.426272][ T6044] Code: a2 c7 05 9c 44 25 00 00 00 00 00 eb 96 e8 e1 12 00 00 90 31 f6 e9 09 00 00 00 66 0f 1f 84 00 00 00 00 00 b8 a6 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 01 c3 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8
[  439.426284][ T6044] RSP: 002b:00007fff836538d8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
[  439.426299][ T6044] RAX: 0000000000000000 RBX: 00007fc4e003445c RCX: 00007fc4dff9f257
[  439.426307][ T6044] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007fff83653990
[  439.426314][ T6044] RBP: 00007fff83653990 R08: 00007fff83654990 R09: 00000000ffffffff
[  439.426322][ T6044] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fff83654a20
[  439.426329][ T6044] R13: 00007fc4e003445c R14: 000000000006b3e2 R15: 00007fff83654a60
[  439.426351][ T6044]  </TASK>
[  439.427418][ T6044] F2FS-fs (loop1): Stopped filesystem due to reason: 3
[  439.431836][T10140] F2FS-fs (loop0): Small segment_count (9 < 1 * 24)
2026/08/04 23:40:19 executed programs: 985
[  439.559717][T10140] F2FS-fs (loop0): Can't find valid F2FS filesystem in 1th superblock
[  439.692658][T10140] F2FS-fs (loop0): f2fs_recover_fsync_data: recovery fsync data, check_only: 0
[  439.714573][T10140] F2FS-fs (loop0): Try to recover 1th superblock, ret: 0
[  439.717485][T10140] F2FS-fs (loop0): Mounted with checkpoint version = 48b305e5
[  439.726100][   T34] audit: type=1800 audit(1785886820.144:1953): pid=10140 uid=0 auid=4294967295 ses=4294967295 subj=unconfined op=collect_data cause=failed(directio) comm="syz.0.994" name="file1" dev="loop0" ino=10 res=0 errno=0
[  439.744256][   T34] audit: type=1800 audit(1785886820.144:1954): pid=10140 uid=0 auid=4294967295 ses=4294967295 subj=unconfined op=collect_data cause=failed(directio) comm="syz.0.994" name="file1" dev="loop0" ino=10 res=0 errno=0
[  439.771372][ T6041] CPU: 1 UID: 0 PID: 6041 Comm: syz-executor Not tainted syzkaller #0 PREEMPT(full) 
[  439.771395][ T6041] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
[  439.771404][ T6041] Call Trace:
[  439.771410][ T6041]  <TASK>
[  439.771418][ T6041]  dump_stack_lvl+0xe8/0x150
[  439.771444][ T6041]  f2fs_stop_checkpoint+0x3f6/0x5d0
[  439.771467][ T6041]  f2fs_write_end_io+0x124b/0x1710
[  439.771497][ T6041]  __submit_merged_bio+0x258/0x6a0
[  439.771512][ T6041]  ? rcu_is_watching+0x15/0xb0
[  439.771536][ T6041]  __submit_merged_write_cond+0x3c9/0x4e0
[  439.771556][ T6041]  ? __pfx___submit_merged_write_cond+0x10/0x10
[  439.771586][ T6041]  f2fs_write_data_pages+0x2a27/0x36f0
[  439.771602][ T6041]  ? __lock_acquire+0x683/0x2cf0
[  439.771645][ T6041]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  439.771689][ T6041]  ? __pfx_hlock_conflict+0x10/0x10
[  439.771700][ T6041]  ? __bfs+0x153/0x290
[  439.771715][ T6041]  ? __pfx_hlock_conflict+0x10/0x10
[  439.771736][ T6041]  ? lockdep_unlock+0x5d/0xd0
[  439.771750][ T6041]  ? __lock_acquire+0x13e8/0x2cf0
[  439.771781][ T6041]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  439.771799][ T6041]  do_writepages+0x338/0x560
[  439.771823][ T6041]  ? do_raw_spin_unlock+0x4d/0x210
[  439.771839][ T6041]  filemap_fdatawrite+0x1e9/0x2f0
[  439.771859][ T6041]  ? __pfx_filemap_fdatawrite+0x10/0x10
[  439.771902][ T6041]  ? do_raw_spin_unlock+0x4d/0x210
[  439.771918][ T6041]  f2fs_sync_dirty_inodes+0x30e/0x830
[  439.771946][ T6041]  f2fs_write_checkpoint+0xa3d/0x2710
[  439.771982][ T6041]  ? __pfx_f2fs_write_checkpoint+0x10/0x10
[  439.772056][ T6041]  kill_f2fs_super+0x2dd/0x700
[  439.772079][ T6041]  ? __pfx_kill_f2fs_super+0x10/0x10
[  439.772104][ T6041]  ? call_rcu+0x64b/0x8b0
[  439.772116][ T6041]  ? lockdep_hardirqs_on+0x7a/0x110
[  439.772138][ T6041]  deactivate_locked_super+0xbc/0x110
[  439.772160][ T6041]  cleanup_mnt+0x3d3/0x460
[  439.772196][ T6041]  task_work_run+0x1d9/0x270
[  439.772217][ T6041]  ? __pfx_task_work_run+0x10/0x10
[  439.772240][ T6041]  exit_to_user_mode_loop+0x1fa/0x730
[  439.772257][ T6041]  ? rcu_is_watching+0x15/0xb0
[  439.772273][ T6041]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  439.772287][ T6041]  do_syscall_64+0x353/0x580
[  439.772302][ T6041]  ? trace_irq_disable+0x3b/0x140
[  439.772321][ T6041]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  439.772334][ T6041] RIP: 0033:0x7fc736b9f257
[  439.772348][ T6041] Code: a2 c7 05 9c 44 25 00 00 00 00 00 eb 96 e8 e1 12 00 00 90 31 f6 e9 09 00 00 00 66 0f 1f 84 00 00 00 00 00 b8 a6 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 01 c3 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8
[  439.772358][ T6041] RSP: 002b:00007fffd6f1ae68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
[  439.772373][ T6041] RAX: 0000000000000000 RBX: 00007fc736c3445c RCX: 00007fc736b9f257
[  439.772381][ T6041] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007fffd6f1af20
[  439.772388][ T6041] RBP: 00007fffd6f1af20 R08: 00007fffd6f1bf20 R09: 00000000ffffffff
[  439.772397][ T6041] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fffd6f1bfb0
[  439.772404][ T6041] R13: 00007fc736c3445c R14: 000000000006b533 R15: 00007fffd6f1bff0
[  439.772424][ T6041]  </TASK>
[  439.776812][ T6041] F2FS-fs (loop0): Stopped filesystem due to reason: 3
[  439.830110][T10144] loop2: detected capacity change from 0 to 40427
[  439.907219][T10144] F2FS-fs (loop2): Small segment_count (9 < 1 * 24)
[  439.915638][T10144] F2FS-fs (loop2): Can't find valid F2FS filesystem in 1th superblock
[  439.972616][T10144] F2FS-fs (loop2): f2fs_recover_fsync_data: recovery fsync data, check_only: 0
[  439.992570][T10144] F2FS-fs (loop2): Try to recover 1th superblock, ret: 0
[  439.995068][T10144] F2FS-fs (loop2): Mounted with checkpoint version = 48b305e5
[  440.001855][   T34] audit: type=1800 audit(1785886820.424:1955): pid=10144 uid=0 auid=4294967295 ses=4294967295 subj=unconfined op=collect_data cause=failed(directio) comm="syz.2.995" name="file1" dev="loop2" ino=10 res=0 errno=0
[  440.018654][   T34] audit: type=1800 audit(1785886820.434:1956): pid=10144 uid=0 auid=4294967295 ses=4294967295 subj=unconfined op=collect_data cause=failed(directio) comm="syz.2.995" name="file1" dev="loop2" ino=10 res=0 errno=0
[  440.048299][ T6048] CPU: 1 UID: 0 PID: 6048 Comm: syz-executor Not tainted syzkaller #0 PREEMPT(full) 
[  440.048324][ T6048] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
[  440.048332][ T6048] Call Trace:
[  440.048338][ T6048]  <TASK>
[  440.048344][ T6048]  dump_stack_lvl+0xe8/0x150
[  440.048367][ T6048]  f2fs_stop_checkpoint+0x3f6/0x5d0
[  440.048386][ T6048]  f2fs_write_end_io+0x124b/0x1710
[  440.048415][ T6048]  __submit_merged_bio+0x258/0x6a0
[  440.048427][ T6048]  ? rcu_is_watching+0x15/0xb0
[  440.048449][ T6048]  __submit_merged_write_cond+0x3c9/0x4e0
[  440.048469][ T6048]  ? __pfx___submit_merged_write_cond+0x10/0x10
[  440.048494][ T6048]  f2fs_write_data_pages+0x2a27/0x36f0
[  440.048508][ T6048]  ? __lock_acquire+0x683/0x2cf0
[  440.048539][ T6048]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  440.048574][ T6048]  ? __pfx_hlock_conflict+0x10/0x10
[  440.048583][ T6048]  ? __bfs+0x153/0x290
[  440.048595][ T6048]  ? __pfx_hlock_conflict+0x10/0x10
[  440.048623][ T6048]  ? lockdep_unlock+0x5d/0xd0
[  440.048637][ T6048]  ? __lock_acquire+0x13e8/0x2cf0
[  440.048667][ T6048]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  440.048684][ T6048]  do_writepages+0x338/0x560
[  440.048707][ T6048]  ? do_raw_spin_unlock+0x4d/0x210
[  440.048723][ T6048]  filemap_fdatawrite+0x1e9/0x2f0
[  440.048741][ T6048]  ? __pfx_filemap_fdatawrite+0x10/0x10
[  440.048784][ T6048]  ? do_raw_spin_unlock+0x4d/0x210
[  440.048799][ T6048]  f2fs_sync_dirty_inodes+0x30e/0x830
[  440.048825][ T6048]  f2fs_write_checkpoint+0xa3d/0x2710
[  440.048862][ T6048]  ? __pfx_f2fs_write_checkpoint+0x10/0x10
[  440.048908][ T6048]  kill_f2fs_super+0x2dd/0x700
[  440.048928][ T6048]  ? __pfx_kill_f2fs_super+0x10/0x10
[  440.048949][ T6048]  ? call_rcu+0x64b/0x8b0
[  440.048960][ T6048]  ? lockdep_hardirqs_on+0x7a/0x110
[  440.048979][ T6048]  deactivate_locked_super+0xbc/0x110
[  440.048995][ T6048]  cleanup_mnt+0x3d3/0x460
[  440.049010][ T6048]  task_work_run+0x1d9/0x270
[  440.049074][ T6048]  ? __pfx_task_work_run+0x10/0x10
[  440.049098][ T6048]  exit_to_user_mode_loop+0x1fa/0x730
[  440.049114][ T6048]  ? rcu_is_watching+0x15/0xb0
[  440.049131][ T6048]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  440.049145][ T6048]  do_syscall_64+0x353/0x580
[  440.049159][ T6048]  ? trace_irq_disable+0x3b/0x140
[  440.049179][ T6048]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  440.049191][ T6048] RIP: 0033:0x7fc5e679f257
[  440.049205][ T6048] Code: a2 c7 05 9c 44 25 00 00 00 00 00 eb 96 e8 e1 12 00 00 90 31 f6 e9 09 00 00 00 66 0f 1f 84 00 00 00 00 00 b8 a6 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 01 c3 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8
[  440.049216][ T6048] RSP: 002b:00007fff49366408 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
[  440.049232][ T6048] RAX: 0000000000000000 RBX: 00007fc5e683445c RCX: 00007fc5e679f257
[  440.049240][ T6048] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007fff493664c0
[  440.049247][ T6048] RBP: 00007fff493664c0 R08: 00007fff493674c0 R09: 00000000ffffffff
[  440.049255][ T6048] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fff49367550
[  440.049263][ T6048] R13: 00007fc5e683445c R14: 000000000006b64f R15: 00007fff49367590
[  440.049282][ T6048]  </TASK>
[  440.178241][ T6048] F2FS-fs (loop2): Stopped filesystem due to reason: 3
[  440.200677][ T1381] ieee802154 phy0 wpan0: encryption failed: -22
[  440.204079][ T1381] ieee802154 phy1 wpan1: encryption failed: -22
[  440.287448][T10148] loop1: detected capacity change from 0 to 40427
[  440.295100][T10148] F2FS-fs (loop1): Small segment_count (9 < 1 * 24)
[  440.300266][T10148] F2FS-fs (loop1): Can't find valid F2FS filesystem in 1th superblock
[  440.414083][T10148] F2FS-fs (loop1): f2fs_recover_fsync_data: recovery fsync data, check_only: 0
[  440.431320][T10148] F2FS-fs (loop1): Try to recover 1th superblock, ret: 0
[  440.435488][T10148] F2FS-fs (loop1): Mounted with checkpoint version = 48b305e5
[  440.450226][   T34] audit: type=1800 audit(1785886820.874:1957): pid=10148 uid=0 auid=4294967295 ses=4294967295 subj=unconfined op=collect_data cause=failed(directio) comm="syz.1.996" name="file1" dev="loop1" ino=10 res=0 errno=0
[  440.456892][   T34] audit: type=1800 audit(1785886820.874:1958): pid=10148 uid=0 auid=4294967295 ses=4294967295 subj=unconfined op=collect_data cause=failed(directio) comm="syz.1.996" name="file1" dev="loop1" ino=10 res=0 errno=0
[  440.488217][ T6044] CPU: 1 UID: 0 PID: 6044 Comm: syz-executor Not tainted syzkaller #0 PREEMPT(full) 
[  440.488241][ T6044] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
[  440.488249][ T6044] Call Trace:
[  440.488255][ T6044]  <TASK>
[  440.488262][ T6044]  dump_stack_lvl+0xe8/0x150
[  440.488287][ T6044]  f2fs_stop_checkpoint+0x3f6/0x5d0
[  440.488307][ T6044]  f2fs_write_end_io+0x124b/0x1710
[  440.488337][ T6044]  __submit_merged_bio+0x258/0x6a0
[  440.488351][ T6044]  ? rcu_is_watching+0x15/0xb0
[  440.488372][ T6044]  __submit_merged_write_cond+0x3c9/0x4e0
[  440.488393][ T6044]  ? __pfx___submit_merged_write_cond+0x10/0x10
[  440.488424][ T6044]  f2fs_write_data_pages+0x2a27/0x36f0
[  440.488465][ T6044]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  440.488511][ T6044]  ? __pfx_hlock_conflict+0x10/0x10
[  440.488522][ T6044]  ? __bfs+0x153/0x290
[  440.488535][ T6044]  ? __pfx_hlock_conflict+0x10/0x10
[  440.488558][ T6044]  ? lockdep_unlock+0x5d/0xd0
[  440.488570][ T6044]  ? __lock_acquire+0x13e8/0x2cf0
[  440.488604][ T6044]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  440.488619][ T6044]  do_writepages+0x338/0x560
[  440.488643][ T6044]  ? do_raw_spin_unlock+0x4d/0x210
[  440.488659][ T6044]  filemap_fdatawrite+0x1e9/0x2f0
[  440.488678][ T6044]  ? __pfx_filemap_fdatawrite+0x10/0x10
[  440.488724][ T6044]  ? do_raw_spin_unlock+0x4d/0x210
[  440.488739][ T6044]  f2fs_sync_dirty_inodes+0x30e/0x830
[  440.488766][ T6044]  f2fs_write_checkpoint+0xa3d/0x2710
[  440.488805][ T6044]  ? __pfx_f2fs_write_checkpoint+0x10/0x10
[  440.488858][ T6044]  kill_f2fs_super+0x2dd/0x700
[  440.488880][ T6044]  ? __pfx_kill_f2fs_super+0x10/0x10
[  440.488904][ T6044]  ? call_rcu+0x64b/0x8b0
[  440.488914][ T6044]  ? lockdep_hardirqs_on+0x7a/0x110
[  440.488938][ T6044]  deactivate_locked_super+0xbc/0x110
[  440.488956][ T6044]  cleanup_mnt+0x3d3/0x460
[  440.488973][ T6044]  task_work_run+0x1d9/0x270
[  440.488993][ T6044]  ? __pfx_task_work_run+0x10/0x10
[  440.489068][ T6044]  exit_to_user_mode_loop+0x1fa/0x730
[  440.489085][ T6044]  ? rcu_is_watching+0x15/0xb0
[  440.489100][ T6044]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  440.489120][ T6044]  do_syscall_64+0x353/0x580
[  440.489133][ T6044]  ? trace_irq_disable+0x3b/0x140
[  440.489178][ T6044]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  440.489191][ T6044] RIP: 0033:0x7fc4dff9f257
[  440.489204][ T6044] Code: a2 c7 05 9c 44 25 00 00 00 00 00 eb 96 e8 e1 12 00 00 90 31 f6 e9 09 00 00 00 66 0f 1f 84 00 00 00 00 00 b8 a6 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 01 c3 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8
[  440.489214][ T6044] RSP: 002b:00007fff836538d8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
[  440.489228][ T6044] RAX: 0000000000000000 RBX: 00007fc4e003445c RCX: 00007fc4dff9f257
[  440.489236][ T6044] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007fff83653990
[  440.489243][ T6044] RBP: 00007fff83653990 R08: 00007fff83654990 R09: 00000000ffffffff
[  440.489251][ T6044] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fff83654a20
[  440.489258][ T6044] R13: 00007fc4e003445c R14: 000000000006b7fe R15: 00007fff83654a60
[  440.489278][ T6044]  </TASK>
[  440.596364][T10152] loop0: detected capacity change from 0 to 40427
[  440.601999][T10152] F2FS-fs (loop0): Small segment_count (9 < 1 * 24)
[  440.605784][T10152] F2FS-fs (loop0): Can't find valid F2FS filesystem in 1th superblock
[  440.694861][T10152] F2FS-fs (loop0): f2fs_recover_fsync_data: recovery fsync data, check_only: 0
[  440.702770][T10152] F2FS-fs (loop0): Try to recover 1th superblock, ret: 0
[  440.706597][T10152] F2FS-fs (loop0): Mounted with checkpoint version = 48b305e5
[  440.711760][ T6044] F2FS-fs (loop1): Stopped filesystem due to reason: 3
[  440.728315][   T34] audit: type=1800 audit(1785886821.144:1959): pid=10152 uid=0 auid=4294967295 ses=4294967295 subj=unconfined op=collect_data cause=failed(directio) comm="syz.0.997" name="file1" dev="loop0" ino=10 res=0 errno=0
[  440.745598][   T34] audit: type=1800 audit(1785886821.144:1960): pid=10152 uid=0 auid=4294967295 ses=4294967295 subj=unconfined op=collect_data cause=failed(directio) comm="syz.0.997" name="file1" dev="loop0" ino=10 res=0 errno=0
[  440.749227][T10156] F2FS-fs (loop2): Small segment_count (9 < 1 * 24)
[  440.757132][T10156] F2FS-fs (loop2): Can't find valid F2FS filesystem in 1th superblock
[  440.772923][ T6041] CPU: 0 UID: 0 PID: 6041 Comm: syz-executor Not tainted syzkaller #0 PREEMPT(full) 
[  440.772944][ T6041] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
[  440.772951][ T6041] Call Trace:
[  440.772958][ T6041]  <TASK>
[  440.772965][ T6041]  dump_stack_lvl+0xe8/0x150
[  440.772987][ T6041]  f2fs_stop_checkpoint+0x3f6/0x5d0
[  440.773038][ T6041]  f2fs_write_end_io+0x124b/0x1710
[  440.773069][ T6041]  __submit_merged_bio+0x258/0x6a0
[  440.773082][ T6041]  ? rcu_is_watching+0x15/0xb0
[  440.773103][ T6041]  __submit_merged_write_cond+0x3c9/0x4e0
[  440.773123][ T6041]  ? __pfx___submit_merged_write_cond+0x10/0x10
[  440.773152][ T6041]  f2fs_write_data_pages+0x2a27/0x36f0
[  440.773169][ T6041]  ? __lock_acquire+0x683/0x2cf0
[  440.773204][ T6041]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  440.773247][ T6041]  ? __pfx_hlock_conflict+0x10/0x10
[  440.773259][ T6041]  ? __bfs+0x153/0x290
[  440.773273][ T6041]  ? __pfx_hlock_conflict+0x10/0x10
[  440.773300][ T6041]  ? lockdep_unlock+0x5d/0xd0
[  440.773315][ T6041]  ? __lock_acquire+0x13e8/0x2cf0
[  440.773345][ T6041]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  440.773362][ T6041]  do_writepages+0x338/0x560
[  440.773385][ T6041]  ? do_raw_spin_unlock+0x4d/0x210
[  440.773401][ T6041]  filemap_fdatawrite+0x1e9/0x2f0
[  440.773421][ T6041]  ? __pfx_filemap_fdatawrite+0x10/0x10
[  440.773465][ T6041]  ? do_raw_spin_unlock+0x4d/0x210
[  440.773503][ T6041]  f2fs_sync_dirty_inodes+0x30e/0x830
[  440.773530][ T6041]  f2fs_write_checkpoint+0xa3d/0x2710
[  440.773567][ T6041]  ? __pfx_f2fs_write_checkpoint+0x10/0x10
[  440.773616][ T6041]  kill_f2fs_super+0x2dd/0x700
[  440.773640][ T6041]  ? __pfx_kill_f2fs_super+0x10/0x10
[  440.773665][ T6041]  ? call_rcu+0x64b/0x8b0
[  440.773678][ T6041]  ? lockdep_hardirqs_on+0x7a/0x110
[  440.773701][ T6041]  deactivate_locked_super+0xbc/0x110
[  440.773720][ T6041]  cleanup_mnt+0x3d3/0x460
[  440.773737][ T6041]  task_work_run+0x1d9/0x270
[  440.773756][ T6041]  ? __pfx_task_work_run+0x10/0x10
[  440.773779][ T6041]  exit_to_user_mode_loop+0x1fa/0x730
[  440.773795][ T6041]  ? rcu_is_watching+0x15/0xb0
[  440.773813][ T6041]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  440.773828][ T6041]  do_syscall_64+0x353/0x580
[  440.773842][ T6041]  ? trace_irq_disable+0x3b/0x140
[  440.773861][ T6041]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  440.773874][ T6041] RIP: 0033:0x7fc736b9f257
[  440.773887][ T6041] Code: a2 c7 05 9c 44 25 00 00 00 00 00 eb 96 e8 e1 12 00 00 90 31 f6 e9 09 00 00 00 66 0f 1f 84 00 00 00 00 00 b8 a6 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 01 c3 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8
[  440.773899][ T6041] RSP: 002b:00007fffd6f1ae68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
[  440.773913][ T6041] RAX: 0000000000000000 RBX: 00007fc736c3445c RCX: 00007fc736b9f257
[  440.773922][ T6041] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007fffd6f1af20
[  440.773929][ T6041] RBP: 00007fffd6f1af20 R08: 00007fffd6f1bf20 R09: 00000000ffffffff
[  440.773937][ T6041] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fffd6f1bfb0
[  440.773947][ T6041] R13: 00007fc736c3445c R14: 000000000006b909 R15: 00007fffd6f1bff0
[  440.773966][ T6041]  </TASK>
[  440.794603][ T6041] F2FS-fs (loop0): Stopped filesystem due to reason: 3
[  440.862857][T10156] F2FS-fs (loop2): f2fs_recover_fsync_data: recovery fsync data, check_only: 0
[  440.947289][T10156] F2FS-fs (loop2): Try to recover 1th superblock, ret: 0
[  440.950923][T10156] F2FS-fs (loop2): Mounted with checkpoint version = 48b305e5
[  440.993579][ T6048] CPU: 0 UID: 0 PID: 6048 Comm: syz-executor Not tainted syzkaller #0 PREEMPT(full) 
[  440.993600][ T6048] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
[  440.993609][ T6048] Call Trace:
[  440.993615][ T6048]  <TASK>
[  440.993620][ T6048]  dump_stack_lvl+0xe8/0x150
[  440.993643][ T6048]  f2fs_stop_checkpoint+0x3f6/0x5d0
[  440.993663][ T6048]  f2fs_write_end_io+0x124b/0x1710
[  440.993693][ T6048]  __submit_merged_bio+0x258/0x6a0
[  440.993706][ T6048]  ? rcu_is_watching+0x15/0xb0
[  440.993752][ T6048]  __submit_merged_write_cond+0x3c9/0x4e0
[  440.993781][ T6048]  ? __pfx___submit_merged_write_cond+0x10/0x10
[  440.993812][ T6048]  f2fs_write_data_pages+0x2a27/0x36f0
[  440.993855][ T6048]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  440.993903][ T6048]  ? __pfx_hlock_conflict+0x10/0x10
[  440.993915][ T6048]  ? __bfs+0x153/0x290
[  440.993929][ T6048]  ? __pfx_hlock_conflict+0x10/0x10
[  440.993953][ T6048]  ? lockdep_unlock+0x5d/0xd0
[  440.993966][ T6048]  ? __lock_acquire+0x13e8/0x2cf0
[  440.994029][ T6048]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  440.994048][ T6048]  do_writepages+0x338/0x560
[  440.994073][ T6048]  ? do_raw_spin_unlock+0x4d/0x210
[  440.994090][ T6048]  filemap_fdatawrite+0x1e9/0x2f0
[  440.994109][ T6048]  ? __pfx_filemap_fdatawrite+0x10/0x10
[  440.994157][ T6048]  ? do_raw_spin_unlock+0x4d/0x210
[  440.994174][ T6048]  f2fs_sync_dirty_inodes+0x30e/0x830
[  440.994203][ T6048]  f2fs_write_checkpoint+0xa3d/0x2710
[  440.994244][ T6048]  ? __pfx_f2fs_write_checkpoint+0x10/0x10
[  440.994298][ T6048]  kill_f2fs_super+0x2dd/0x700
[  440.994323][ T6048]  ? __pfx_kill_f2fs_super+0x10/0x10
[  440.994349][ T6048]  ? call_rcu+0x64b/0x8b0
[  440.994360][ T6048]  ? lockdep_hardirqs_on+0x7a/0x110
[  440.994384][ T6048]  deactivate_locked_super+0xbc/0x110
[  440.994404][ T6048]  cleanup_mnt+0x3d3/0x460
[  440.994420][ T6048]  task_work_run+0x1d9/0x270
[  440.994440][ T6048]  ? __pfx_task_work_run+0x10/0x10
[  440.994465][ T6048]  exit_to_user_mode_loop+0x1fa/0x730
[  440.994481][ T6048]  ? rcu_is_watching+0x15/0xb0
[  440.994499][ T6048]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  440.994513][ T6048]  do_syscall_64+0x353/0x580
[  440.994526][ T6048]  ? trace_irq_disable+0x3b/0x140
[  440.994546][ T6048]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  440.994558][ T6048] RIP: 0033:0x7fc5e679f257
[  440.994570][ T6048] Code: a2 c7 05 9c 44 25 00 00 00 00 00 eb 96 e8 e1 12 00 00 90 31 f6 e9 09 00 00 00 66 0f 1f 84 00 00 00 00 00 b8 a6 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 01 c3 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8
[  440.994581][ T6048] RSP: 002b:00007fff49366408 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
[  440.994595][ T6048] RAX: 0000000000000000 RBX: 00007fc5e683445c RCX: 00007fc5e679f257
[  440.994603][ T6048] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007fff493664c0
[  440.994610][ T6048] RBP: 00007fff493664c0 R08: 00007fff493674c0 R09: 00000000ffffffff
[  440.994618][ T6048] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fff49367550
[  440.994626][ T6048] R13: 00007fc5e683445c R14: 000000000006ba02 R15: 00007fff49367590
[  440.994648][ T6048]  </TASK>
[  441.120713][ T6048] F2FS-fs (loop2): Stopped filesystem due to reason: 3
[  441.471621][T10164] F2FS-fs (loop0): Small segment_count (9 < 1 * 24)
[  441.474487][T10164] F2FS-fs (loop0): Can't find valid F2FS filesystem in 1th superblock
[  441.526235][T10162] F2FS-fs (loop1): Small segment_count (9 < 1 * 24)
[  441.539131][T10162] F2FS-fs (loop1): Can't find valid F2FS filesystem in 1th superblock
[  441.570024][T10164] F2FS-fs (loop0): f2fs_recover_fsync_data: recovery fsync data, check_only: 0
[  441.582351][T10164] F2FS-fs (loop0): Try to recover 1th superblock, ret: 0
[  441.586439][T10164] F2FS-fs (loop0): Mounted with checkpoint version = 48b305e5
[  441.628459][ T6041] CPU: 1 UID: 0 PID: 6041 Comm: syz-executor Not tainted syzkaller #0 PREEMPT(full) 
[  441.628485][ T6041] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
[  441.628493][ T6041] Call Trace:
[  441.628498][ T6041]  <TASK>
[  441.628504][ T6041]  dump_stack_lvl+0xe8/0x150
[  441.628528][ T6041]  f2fs_stop_checkpoint+0x3f6/0x5d0
[  441.628550][ T6041]  f2fs_write_end_io+0x124b/0x1710
[  441.628580][ T6041]  __submit_merged_bio+0x258/0x6a0
[  441.628594][ T6041]  ? rcu_is_watching+0x15/0xb0
[  441.628615][ T6041]  __submit_merged_write_cond+0x3c9/0x4e0
[  441.628634][ T6041]  ? __pfx___submit_merged_write_cond+0x10/0x10
[  441.628663][ T6041]  f2fs_write_data_pages+0x2a27/0x36f0
[  441.628701][ T6041]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  441.628744][ T6041]  ? __pfx_hlock_conflict+0x10/0x10
[  441.628754][ T6041]  ? __bfs+0x153/0x290
[  441.628768][ T6041]  ? __pfx_hlock_conflict+0x10/0x10
[  441.628790][ T6041]  ? lockdep_unlock+0x5d/0xd0
[  441.628802][ T6041]  ? __lock_acquire+0x13e8/0x2cf0
[  441.628858][ T6041]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  441.628876][ T6041]  do_writepages+0x338/0x560
[  441.628899][ T6041]  ? do_raw_spin_unlock+0x4d/0x210
[  441.628915][ T6041]  filemap_fdatawrite+0x1e9/0x2f0
[  441.628933][ T6041]  ? __pfx_filemap_fdatawrite+0x10/0x10
[  441.628976][ T6041]  ? do_raw_spin_unlock+0x4d/0x210
[  441.629021][ T6041]  f2fs_sync_dirty_inodes+0x30e/0x830
[  441.629050][ T6041]  f2fs_write_checkpoint+0xa3d/0x2710
[  441.629086][ T6041]  ? __pfx_f2fs_write_checkpoint+0x10/0x10
[  441.629141][ T6041]  kill_f2fs_super+0x2dd/0x700
[  441.629164][ T6041]  ? __pfx_kill_f2fs_super+0x10/0x10
[  441.629185][ T6041]  ? call_rcu+0x64b/0x8b0
[  441.629195][ T6041]  ? lockdep_hardirqs_on+0x7a/0x110
[  441.629218][ T6041]  deactivate_locked_super+0xbc/0x110
[  441.629236][ T6041]  cleanup_mnt+0x3d3/0x460
[  441.629250][ T6041]  task_work_run+0x1d9/0x270
[  441.629268][ T6041]  ? __pfx_task_work_run+0x10/0x10
[  441.629291][ T6041]  exit_to_user_mode_loop+0x1fa/0x730
[  441.629306][ T6041]  ? rcu_is_watching+0x15/0xb0
[  441.629324][ T6041]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  441.629337][ T6041]  do_syscall_64+0x353/0x580
[  441.629351][ T6041]  ? trace_irq_disable+0x3b/0x140
[  441.629371][ T6041]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  441.629383][ T6041] RIP: 0033:0x7fc736b9f257
[  441.629397][ T6041] Code: a2 c7 05 9c 44 25 00 00 00 00 00 eb 96 e8 e1 12 00 00 90 31 f6 e9 09 00 00 00 66 0f 1f 84 00 00 00 00 00 b8 a6 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 01 c3 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8
[  441.629407][ T6041] RSP: 002b:00007fffd6f1ae68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
[  441.629422][ T6041] RAX: 0000000000000000 RBX: 00007fc736c3445c RCX: 00007fc736b9f257
[  441.629430][ T6041] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007fffd6f1af20
[  441.629438][ T6041] RBP: 00007fffd6f1af20 R08: 00007fffd6f1bf20 R09: 00000000ffffffff
[  441.629446][ T6041] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fffd6f1bfb0
[  441.629453][ T6041] R13: 00007fc736c3445c R14: 000000000006bc74 R15: 00007fffd6f1bff0
[  441.629473][ T6041]  </TASK>
[  441.676898][T10162] F2FS-fs (loop1): f2fs_recover_fsync_data: recovery fsync data, check_only: 0
[  441.677926][ T6041] F2FS-fs (loop0): Stopped filesystem due to reason: 3
[  441.691932][T10162] F2FS-fs (loop1): Try to recover 1th superblock, ret: 0
[  441.718920][T10166] F2FS-fs (loop2): Small segment_count (9 < 1 * 24)
[  441.729750][T10162] F2FS-fs (loop1): Mounted with checkpoint version = 48b305e5
[  441.761729][T10166] F2FS-fs (loop2): Can't find valid F2FS filesystem in 1th superblock
[  441.873862][ T6044] CPU: 1 UID: 0 PID: 6044 Comm: syz-executor Not tainted syzkaller #0 PREEMPT(full) 
[  441.873886][ T6044] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
[  441.873895][ T6044] Call Trace:
[  441.873902][ T6044]  <TASK>
[  441.873908][ T6044]  dump_stack_lvl+0xe8/0x150
[  441.873935][ T6044]  f2fs_stop_checkpoint+0x3f6/0x5d0
[  441.873957][ T6044]  f2fs_write_end_io+0x124b/0x1710
[  441.874025][ T6044]  __submit_merged_bio+0x258/0x6a0
[  441.874042][ T6044]  ? rcu_is_watching+0x15/0xb0
[  441.874065][ T6044]  __submit_merged_write_cond+0x3c9/0x4e0
[  441.874087][ T6044]  ? __pfx___submit_merged_write_cond+0x10/0x10
[  441.874144][ T6044]  f2fs_write_data_pages+0x2a27/0x36f0
[  441.874159][ T6044]  ? __lock_acquire+0x683/0x2cf0
[  441.874201][ T6044]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  441.874250][ T6044]  ? __pfx_hlock_conflict+0x10/0x10
[  441.874261][ T6044]  ? __bfs+0x153/0x290
[  441.874274][ T6044]  ? __pfx_hlock_conflict+0x10/0x10
[  441.874298][ T6044]  ? lockdep_unlock+0x5d/0xd0
[  441.874311][ T6044]  ? __lock_acquire+0x13e8/0x2cf0
[  441.874345][ T6044]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  441.874363][ T6044]  do_writepages+0x338/0x560
[  441.874388][ T6044]  ? do_raw_spin_unlock+0x4d/0x210
[  441.874406][ T6044]  filemap_fdatawrite+0x1e9/0x2f0
[  441.874425][ T6044]  ? __pfx_filemap_fdatawrite+0x10/0x10
[  441.874472][ T6044]  ? do_raw_spin_unlock+0x4d/0x210
[  441.874487][ T6044]  f2fs_sync_dirty_inodes+0x30e/0x830
[  441.874513][ T6044]  f2fs_write_checkpoint+0xa3d/0x2710
[  441.874553][ T6044]  ? __pfx_f2fs_write_checkpoint+0x10/0x10
[  441.874606][ T6044]  kill_f2fs_super+0x2dd/0x700
[  441.874630][ T6044]  ? __pfx_kill_f2fs_super+0x10/0x10
[  441.874656][ T6044]  ? call_rcu+0x64b/0x8b0
[  441.874668][ T6044]  ? lockdep_hardirqs_on+0x7a/0x110
[  441.874694][ T6044]  deactivate_locked_super+0xbc/0x110
[  441.874713][ T6044]  cleanup_mnt+0x3d3/0x460
[  441.874731][ T6044]  task_work_run+0x1d9/0x270
[  441.874752][ T6044]  ? __pfx_task_work_run+0x10/0x10
[  441.874776][ T6044]  exit_to_user_mode_loop+0x1fa/0x730
[  441.874792][ T6044]  ? rcu_is_watching+0x15/0xb0
[  441.874810][ T6044]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  441.874823][ T6044]  do_syscall_64+0x353/0x580
[  441.874837][ T6044]  ? trace_irq_disable+0x3b/0x140
[  441.874857][ T6044]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  441.874870][ T6044] RIP: 0033:0x7fc4dff9f257
[  441.874884][ T6044] Code: a2 c7 05 9c 44 25 00 00 00 00 00 eb 96 e8 e1 12 00 00 90 31 f6 e9 09 00 00 00 66 0f 1f 84 00 00 00 00 00 b8 a6 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 01 c3 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8
[  441.874894][ T6044] RSP: 002b:00007fff836538d8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
[  441.874909][ T6044] RAX: 0000000000000000 RBX: 00007fc4e003445c RCX: 00007fc4dff9f257
[  441.874917][ T6044] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007fff83653990
[  441.874924][ T6044] RBP: 00007fff83653990 R08: 00007fff83654990 R09: 00000000ffffffff
[  441.874933][ T6044] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fff83654a20
[  441.874941][ T6044] R13: 00007fc4e003445c R14: 000000000006bd59 R15: 00007fff83654a60
[  441.874962][ T6044]  </TASK>
[  441.881354][ T6044] F2FS-fs (loop1): Stopped filesystem due to reason: 3
[  441.908616][T10166] F2FS-fs (loop2): f2fs_recover_fsync_data: recovery fsync data, check_only: 0
[  442.007522][T10166] F2FS-fs (loop2): Try to recover 1th superblock, ret: 0
[  442.010594][T10166] F2FS-fs (loop2): Mounted with checkpoint version = 48b305e5
[  442.035661][ T6048] CPU: 1 UID: 0 PID: 6048 Comm: syz-executor Not tainted syzkaller #0 PREEMPT(full) 
[  442.035711][ T6048] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
[  442.035720][ T6048] Call Trace:
[  442.035727][ T6048]  <TASK>
[  442.035734][ T6048]  dump_stack_lvl+0xe8/0x150
[  442.035760][ T6048]  f2fs_stop_checkpoint+0x3f6/0x5d0
[  442.035782][ T6048]  f2fs_write_end_io+0x124b/0x1710
[  442.035815][ T6048]  __submit_merged_bio+0x258/0x6a0
[  442.035830][ T6048]  ? rcu_is_watching+0x15/0xb0
[  442.035862][ T6048]  __submit_merged_write_cond+0x3c9/0x4e0
[  442.035885][ T6048]  ? __pfx___submit_merged_write_cond+0x10/0x10
[  442.035918][ T6048]  f2fs_write_data_pages+0x2a27/0x36f0
[  442.035961][ T6048]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  442.036037][ T6048]  ? __pfx_hlock_conflict+0x10/0x10
[  442.036051][ T6048]  ? __bfs+0x153/0x290
[  442.036066][ T6048]  ? __pfx_hlock_conflict+0x10/0x10
[  442.036097][ T6048]  ? lockdep_unlock+0x5d/0xd0
[  442.036111][ T6048]  ? __lock_acquire+0x13e8/0x2cf0
[  442.036147][ T6048]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  442.036165][ T6048]  do_writepages+0x338/0x560
[  442.036191][ T6048]  ? do_raw_spin_unlock+0x4d/0x210
[  442.036209][ T6048]  filemap_fdatawrite+0x1e9/0x2f0
[  442.036229][ T6048]  ? __pfx_filemap_fdatawrite+0x10/0x10
[  442.036277][ T6048]  ? do_raw_spin_unlock+0x4d/0x210
[  442.036294][ T6048]  f2fs_sync_dirty_inodes+0x30e/0x830
[  442.036323][ T6048]  f2fs_write_checkpoint+0xa3d/0x2710
[  442.036365][ T6048]  ? __pfx_f2fs_write_checkpoint+0x10/0x10
[  442.036422][ T6048]  kill_f2fs_super+0x2dd/0x700
[  442.036447][ T6048]  ? __pfx_kill_f2fs_super+0x10/0x10
[  442.036473][ T6048]  ? call_rcu+0x64b/0x8b0
[  442.036484][ T6048]  ? lockdep_hardirqs_on+0x7a/0x110
[  442.036519][ T6048]  deactivate_locked_super+0xbc/0x110
[  442.036540][ T6048]  cleanup_mnt+0x3d3/0x460
[  442.036557][ T6048]  task_work_run+0x1d9/0x270
[  442.036579][ T6048]  ? __pfx_task_work_run+0x10/0x10
[  442.036603][ T6048]  exit_to_user_mode_loop+0x1fa/0x730
[  442.036619][ T6048]  ? rcu_is_watching+0x15/0xb0
[  442.036637][ T6048]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  442.036651][ T6048]  do_syscall_64+0x353/0x580
[  442.036665][ T6048]  ? trace_irq_disable+0x3b/0x140
[  442.036685][ T6048]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  442.036697][ T6048] RIP: 0033:0x7fc5e679f257
[  442.036711][ T6048] Code: a2 c7 05 9c 44 25 00 00 00 00 00 eb 96 e8 e1 12 00 00 90 31 f6 e9 09 00 00 00 66 0f 1f 84 00 00 00 00 00 b8 a6 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 01 c3 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8
[  442.036722][ T6048] RSP: 002b:00007fff49366408 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
[  442.036737][ T6048] RAX: 0000000000000000 RBX: 00007fc5e683445c RCX: 00007fc5e679f257
[  442.036745][ T6048] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007fff493664c0
[  442.036753][ T6048] RBP: 00007fff493664c0 R08: 00007fff493674c0 R09: 00000000ffffffff
[  442.036761][ T6048] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fff49367550
[  442.036769][ T6048] R13: 00007fc5e683445c R14: 000000000006be12 R15: 00007fff49367590
[  442.036791][ T6048]  </TASK>
[  442.037965][ T6048] F2FS-fs (loop2): Stopped filesystem due to reason: 3
[  442.362084][T10174] set_capacity_and_notify: 4 callbacks suppressed
[  442.362100][T10174] loop0: detected capacity change from 0 to 40427
[  442.372791][T10174] F2FS-fs (loop0): Small segment_count (9 < 1 * 24)
[  442.390952][T10174] F2FS-fs (loop0): Can't find valid F2FS filesystem in 1th superblock
[  442.455213][T10174] F2FS-fs (loop0): f2fs_recover_fsync_data: recovery fsync data, check_only: 0
[  442.465132][T10174] F2FS-fs (loop0): Try to recover 1th superblock, ret: 0
[  442.467896][T10174] F2FS-fs (loop0): Mounted with checkpoint version = 48b305e5
[  442.476696][T10174] bio_check_eod: 32 callbacks suppressed
[  442.476705][T10174] syz.0.1002: attempt to access beyond end of device
[  442.476705][T10174] loop0: rw=2049, sector=53248, nr_sectors = 976 limit=40427
[  442.483416][T10174] syz.0.1002: attempt to access beyond end of device
[  442.483416][T10174] loop0: rw=8423425, sector=54224, nr_sectors = 8 limit=40427
[  442.494492][ T6041] syz-executor: attempt to access beyond end of device
[  442.494492][ T6041] loop0: rw=2049, sector=45096, nr_sectors = 8 limit=40427
[  442.500609][ T6041] CPU: 0 UID: 0 PID: 6041 Comm: syz-executor Not tainted syzkaller #0 PREEMPT(full) 
[  442.500622][ T6041] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
[  442.500627][ T6041] Call Trace:
[  442.500631][ T6041]  <TASK>
[  442.500635][ T6041]  dump_stack_lvl+0xe8/0x150
[  442.500649][ T6041]  f2fs_stop_checkpoint+0x3f6/0x5d0
[  442.500661][ T6041]  f2fs_write_end_io+0x124b/0x1710
[  442.500678][ T6041]  __submit_merged_bio+0x258/0x6a0
[  442.500687][ T6041]  ? rcu_is_watching+0x15/0xb0
[  442.500733][ T6041]  __submit_merged_write_cond+0x3c9/0x4e0
[  442.500752][ T6041]  ? __pfx___submit_merged_write_cond+0x10/0x10
[  442.500781][ T6041]  f2fs_write_data_pages+0x2a27/0x36f0
[  442.500796][ T6041]  ? __lock_acquire+0x683/0x2cf0
[  442.500832][ T6041]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  442.500877][ T6041]  ? __pfx_hlock_conflict+0x10/0x10
[  442.500889][ T6041]  ? __bfs+0x153/0x290
[  442.500901][ T6041]  ? __pfx_hlock_conflict+0x10/0x10
[  442.500915][ T6041]  ? lockdep_unlock+0x5d/0xd0
[  442.500922][ T6041]  ? __lock_acquire+0x13e8/0x2cf0
[  442.500942][ T6041]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  442.500952][ T6041]  do_writepages+0x338/0x560
[  442.500966][ T6041]  ? do_raw_spin_unlock+0x4d/0x210
[  442.500976][ T6041]  filemap_fdatawrite+0x1e9/0x2f0
[  442.501019][ T6041]  ? __pfx_filemap_fdatawrite+0x10/0x10
[  442.501046][ T6041]  ? do_raw_spin_unlock+0x4d/0x210
[  442.501056][ T6041]  f2fs_sync_dirty_inodes+0x30e/0x830
[  442.501072][ T6041]  f2fs_write_checkpoint+0xa3d/0x2710
[  442.501095][ T6041]  ? __pfx_f2fs_write_checkpoint+0x10/0x10
[  442.501126][ T6041]  kill_f2fs_super+0x2dd/0x700
[  442.501140][ T6041]  ? __pfx_kill_f2fs_super+0x10/0x10
[  442.501154][ T6041]  ? call_rcu+0x64b/0x8b0
[  442.501161][ T6041]  ? lockdep_hardirqs_on+0x7a/0x110
[  442.501175][ T6041]  deactivate_locked_super+0xbc/0x110
[  442.501186][ T6041]  cleanup_mnt+0x3d3/0x460
[  442.501196][ T6041]  task_work_run+0x1d9/0x270
[  442.501208][ T6041]  ? __pfx_task_work_run+0x10/0x10
[  442.501222][ T6041]  exit_to_user_mode_loop+0x1fa/0x730
[  442.501232][ T6041]  ? rcu_is_watching+0x15/0xb0
[  442.501243][ T6041]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  442.501251][ T6041]  do_syscall_64+0x353/0x580
[  442.501259][ T6041]  ? trace_irq_disable+0x3b/0x140
[  442.501270][ T6041]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  442.501277][ T6041] RIP: 0033:0x7fc736b9f257
[  442.501285][ T6041] Code: a2 c7 05 9c 44 25 00 00 00 00 00 eb 96 e8 e1 12 00 00 90 31 f6 e9 09 00 00 00 66 0f 1f 84 00 00 00 00 00 b8 a6 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 01 c3 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8
[  442.501292][ T6041] RSP: 002b:00007fffd6f1ae68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
[  442.501301][ T6041] RAX: 0000000000000000 RBX: 00007fc736c3445c RCX: 00007fc736b9f257
[  442.501306][ T6041] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007fffd6f1af20
[  442.501310][ T6041] RBP: 00007fffd6f1af20 R08: 00007fffd6f1bf20 R09: 00000000ffffffff
[  442.501315][ T6041] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fffd6f1bfb0
[  442.501319][ T6041] R13: 00007fc736c3445c R14: 000000000006bfe3 R15: 00007fffd6f1bff0
[  442.501332][ T6041]  </TASK>
[  442.502025][ T6041] F2FS-fs (loop0): Stopped filesystem due to reason: 3
[  442.738342][T10176] loop1: detected capacity change from 0 to 40427
[  442.744777][T10176] F2FS-fs (loop1): Small segment_count (9 < 1 * 24)
[  442.751662][T10180] loop2: detected capacity change from 0 to 40427
[  442.756251][T10180] F2FS-fs (loop2): Small segment_count (9 < 1 * 24)
[  442.762628][T10180] F2FS-fs (loop2): Can't find valid F2FS filesystem in 1th superblock
[  442.770488][T10176] F2FS-fs (loop1): Can't find valid F2FS filesystem in 1th superblock
[  442.826970][T10180] F2FS-fs (loop2): f2fs_recover_fsync_data: recovery fsync data, check_only: 0
[  442.837921][T10180] F2FS-fs (loop2): Try to recover 1th superblock, ret: 0
[  442.842105][T10180] F2FS-fs (loop2): Mounted with checkpoint version = 48b305e5
[  442.843399][T10176] F2FS-fs (loop1): f2fs_recover_fsync_data: recovery fsync data, check_only: 0
[  442.851249][T10176] F2FS-fs (loop1): Try to recover 1th superblock, ret: 0
[  442.854044][T10176] F2FS-fs (loop1): Mounted with checkpoint version = 48b305e5
[  442.865841][T10180] syz.2.1004: attempt to access beyond end of device
[  442.865841][T10180] loop2: rw=2049, sector=53248, nr_sectors = 976 limit=40427
[  442.872906][T10180] syz.2.1004: attempt to access beyond end of device
[  442.872906][T10180] loop2: rw=8423425, sector=54224, nr_sectors = 8 limit=40427
[  442.875925][T10176] syz.1.1003: attempt to access beyond end of device
[  442.875925][T10176] loop1: rw=2049, sector=53248, nr_sectors = 976 limit=40427
[  442.886320][T10176] syz.1.1003: attempt to access beyond end of device
[  442.886320][T10176] loop1: rw=8423425, sector=54224, nr_sectors = 8 limit=40427
[  442.904193][ T6044] syz-executor: attempt to access beyond end of device
[  442.904193][ T6044] loop1: rw=2049, sector=45096, nr_sectors = 8 limit=40427
[  442.912369][ T6048] syz-executor: attempt to access beyond end of device
[  442.912369][ T6048] loop2: rw=2049, sector=45096, nr_sectors = 8 limit=40427
[  442.921384][ T6048] CPU: 1 UID: 0 PID: 6048 Comm: syz-executor Not tainted syzkaller #0 PREEMPT(full) 
[  442.921428][ T6048] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
[  442.921453][ T6048] Call Trace:
[  442.921460][ T6048]  <TASK>
[  442.921466][ T6048]  dump_stack_lvl+0xe8/0x150
[  442.921491][ T6048]  f2fs_stop_checkpoint+0x3f6/0x5d0
[  442.921512][ T6048]  f2fs_write_end_io+0x124b/0x1710
[  442.921544][ T6048]  __submit_merged_bio+0x258/0x6a0
[  442.921557][ T6048]  ? rcu_is_watching+0x15/0xb0
[  442.921576][ T6048]  __submit_merged_write_cond+0x3c9/0x4e0
[  442.921596][ T6048]  ? __pfx___submit_merged_write_cond+0x10/0x10
[  442.921625][ T6048]  f2fs_write_data_pages+0x2a27/0x36f0
[  442.921640][ T6048]  ? __lock_acquire+0x683/0x2cf0
[  442.921676][ T6048]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  442.921720][ T6048]  ? __pfx_hlock_conflict+0x10/0x10
[  442.921731][ T6048]  ? __bfs+0x153/0x290
[  442.921744][ T6048]  ? __pfx_hlock_conflict+0x10/0x10
[  442.921767][ T6048]  ? lockdep_unlock+0x5d/0xd0
[  442.921780][ T6048]  ? __lock_acquire+0x13e8/0x2cf0
[  442.921813][ T6048]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  442.921831][ T6048]  do_writepages+0x338/0x560
[  442.921855][ T6048]  ? do_raw_spin_unlock+0x4d/0x210
[  442.921870][ T6048]  filemap_fdatawrite+0x1e9/0x2f0
[  442.921890][ T6048]  ? __pfx_filemap_fdatawrite+0x10/0x10
[  442.921938][ T6048]  ? do_raw_spin_unlock+0x4d/0x210
[  442.921954][ T6048]  f2fs_sync_dirty_inodes+0x30e/0x830
[  442.922007][ T6048]  f2fs_write_checkpoint+0xa3d/0x2710
[  442.922046][ T6048]  ? __pfx_f2fs_write_checkpoint+0x10/0x10
[  442.922100][ T6048]  kill_f2fs_super+0x2dd/0x700
[  442.922126][ T6048]  ? __pfx_kill_f2fs_super+0x10/0x10
[  442.922148][ T6048]  ? call_rcu+0x64b/0x8b0
[  442.922157][ T6048]  ? lockdep_hardirqs_on+0x7a/0x110
[  442.922180][ T6048]  deactivate_locked_super+0xbc/0x110
[  442.922198][ T6048]  cleanup_mnt+0x3d3/0x460
[  442.922212][ T6048]  task_work_run+0x1d9/0x270
[  442.922231][ T6048]  ? __pfx_task_work_run+0x10/0x10
[  442.922254][ T6048]  exit_to_user_mode_loop+0x1fa/0x730
[  442.922269][ T6048]  ? rcu_is_watching+0x15/0xb0
[  442.922285][ T6048]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  442.922299][ T6048]  do_syscall_64+0x353/0x580
[  442.922312][ T6048]  ? trace_irq_disable+0x3b/0x140
[  442.922330][ T6048]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  442.922342][ T6048] RIP: 0033:0x7fc5e679f257
[  442.922355][ T6048] Code: a2 c7 05 9c 44 25 00 00 00 00 00 eb 96 e8 e1 12 00 00 90 31 f6 e9 09 00 00 00 66 0f 1f 84 00 00 00 00 00 b8 a6 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 01 c3 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8
[  442.922366][ T6048] RSP: 002b:00007fff49366408 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
[  442.922381][ T6048] RAX: 0000000000000000 RBX: 00007fc5e683445c RCX: 00007fc5e679f257
[  442.922389][ T6048] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007fff493664c0
[  442.922396][ T6048] RBP: 00007fff493664c0 R08: 00007fff493674c0 R09: 00000000ffffffff
[  442.922404][ T6048] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fff49367550
[  442.922410][ T6048] R13: 00007fc5e683445c R14: 000000000006c176 R15: 00007fff49367590
[  442.922429][ T6048]  </TASK>
[  442.923528][ T6044] CPU: 1 UID: 0 PID: 6044 Comm: syz-executor Not tainted syzkaller #0 PREEMPT(full) 
[  442.923546][ T6044] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
[  442.923554][ T6044] Call Trace:
[  442.923559][ T6044]  <TASK>
[  442.923564][ T6044]  dump_stack_lvl+0xe8/0x150
[  442.923584][ T6044]  f2fs_stop_checkpoint+0x3f6/0x5d0
[  442.923603][ T6044]  f2fs_write_end_io+0x124b/0x1710
[  442.923633][ T6044]  __submit_merged_bio+0x258/0x6a0
[  442.923647][ T6044]  ? rcu_is_watching+0x15/0xb0
[  442.923668][ T6044]  __submit_merged_write_cond+0x3c9/0x4e0
[  442.923688][ T6044]  ? __pfx___submit_merged_write_cond+0x10/0x10
[  442.923735][ T6044]  f2fs_write_data_pages+0x2a27/0x36f0
[  442.923776][ T6044]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  442.923818][ T6044]  ? __pfx_hlock_conflict+0x10/0x10
[  442.923829][ T6044]  ? __bfs+0x153/0x290
[  442.923844][ T6044]  ? __pfx_hlock_conflict+0x10/0x10
[  442.923866][ T6044]  ? lockdep_unlock+0x5d/0xd0
[  442.923879][ T6044]  ? __lock_acquire+0x13e8/0x2cf0
[  442.923911][ T6044]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  442.923928][ T6044]  do_writepages+0x338/0x560
[  442.923952][ T6044]  ? do_raw_spin_unlock+0x4d/0x210
[  442.923968][ T6044]  filemap_fdatawrite+0x1e9/0x2f0
[  442.924015][ T6044]  ? __pfx_filemap_fdatawrite+0x10/0x10
[  442.924066][ T6044]  ? do_raw_spin_unlock+0x4d/0x210
[  442.924082][ T6044]  f2fs_sync_dirty_inodes+0x30e/0x830
[  442.924109][ T6044]  f2fs_write_checkpoint+0xa3d/0x2710
[  442.924148][ T6044]  ? __pfx_f2fs_write_checkpoint+0x10/0x10
[  442.924198][ T6044]  kill_f2fs_super+0x2dd/0x700
[  442.924221][ T6044]  ? __pfx_kill_f2fs_super+0x10/0x10
[  442.924246][ T6044]  ? call_rcu+0x64b/0x8b0
[  442.924257][ T6044]  ? lockdep_hardirqs_on+0x7a/0x110
[  442.924280][ T6044]  deactivate_locked_super+0xbc/0x110
[  442.924298][ T6044]  cleanup_mnt+0x3d3/0x460
[  442.924314][ T6044]  task_work_run+0x1d9/0x270
[  442.924334][ T6044]  ? __pfx_task_work_run+0x10/0x10
[  442.924357][ T6044]  exit_to_user_mode_loop+0x1fa/0x730
[  442.924372][ T6044]  ? rcu_is_watching+0x15/0xb0
[  442.924389][ T6044]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  442.924403][ T6044]  do_syscall_64+0x353/0x580
[  442.924416][ T6044]  ? trace_irq_disable+0x3b/0x140
[  442.924435][ T6044]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  442.924446][ T6044] RIP: 0033:0x7fc4dff9f257
[  442.924458][ T6044] Code: a2 c7 05 9c 44 25 00 00 00 00 00 eb 96 e8 e1 12 00 00 90 31 f6 e9 09 00 00 00 66 0f 1f 84 00 00 00 00 00 b8 a6 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 01 c3 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8
[  442.924469][ T6044] RSP: 002b:00007fff836538d8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
[  442.924483][ T6044] RAX: 0000000000000000 RBX: 00007fc4e003445c RCX: 00007fc4dff9f257
[  442.924491][ T6044] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007fff83653990
[  442.924499][ T6044] RBP: 00007fff83653990 R08: 00007fff83654990 R09: 00000000ffffffff
[  442.924507][ T6044] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fff83654a20
[  442.924515][ T6044] R13: 00007fc4e003445c R14: 000000000006c17f R15: 00007fff83654a60
[  442.924535][ T6044]  </TASK>
[  442.924595][ T6044] F2FS-fs (loop1): Stopped filesystem due to reason: 3
[  442.941640][ T6048] F2FS-fs (loop2): Stopped filesystem due to reason: 3
[  443.167038][T10186] loop0: detected capacity change from 0 to 40427
[  443.202174][T10186] F2FS-fs (loop0): Small segment_count (9 < 1 * 24)
[  443.204765][T10186] F2FS-fs (loop0): Can't find valid F2FS filesystem in 1th superblock
[  443.272800][T10186] F2FS-fs (loop0): f2fs_recover_fsync_data: recovery fsync data, check_only: 0
[  443.282380][T10186] F2FS-fs (loop0): Try to recover 1th superblock, ret: 0
[  443.285699][T10186] F2FS-fs (loop0): Mounted with checkpoint version = 48b305e5
[  443.321656][T10186] syz.0.1005: attempt to access beyond end of device
[  443.321656][T10186] loop0: rw=2049, sector=53248, nr_sectors = 976 limit=40427
[  443.358309][ T6041] CPU: 0 UID: 0 PID: 6041 Comm: syz-executor Not tainted syzkaller #0 PREEMPT(full) 
[  443.358330][ T6041] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
[  443.358337][ T6041] Call Trace:
[  443.358344][ T6041]  <TASK>
[  443.358351][ T6041]  dump_stack_lvl+0xe8/0x150
[  443.358373][ T6041]  f2fs_stop_checkpoint+0x3f6/0x5d0
[  443.358394][ T6041]  f2fs_write_end_io+0x124b/0x1710
[  443.358424][ T6041]  __submit_merged_bio+0x258/0x6a0
[  443.358439][ T6041]  ? rcu_is_watching+0x15/0xb0
[  443.358480][ T6041]  __submit_merged_write_cond+0x3c9/0x4e0
[  443.358501][ T6041]  ? __pfx___submit_merged_write_cond+0x10/0x10
[  443.358530][ T6041]  f2fs_write_data_pages+0x2a27/0x36f0
[  443.358568][ T6041]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  443.358610][ T6041]  ? __pfx_hlock_conflict+0x10/0x10
[  443.358622][ T6041]  ? __bfs+0x153/0x290
[  443.358635][ T6041]  ? __pfx_hlock_conflict+0x10/0x10
[  443.358658][ T6041]  ? lockdep_unlock+0x5d/0xd0
[  443.358670][ T6041]  ? __lock_acquire+0x13e8/0x2cf0
[  443.358702][ T6041]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  443.358719][ T6041]  do_writepages+0x338/0x560
[  443.358742][ T6041]  ? do_raw_spin_unlock+0x4d/0x210
[  443.358757][ T6041]  filemap_fdatawrite+0x1e9/0x2f0
[  443.358776][ T6041]  ? __pfx_filemap_fdatawrite+0x10/0x10
[  443.358819][ T6041]  ? do_raw_spin_unlock+0x4d/0x210
[  443.358835][ T6041]  f2fs_sync_dirty_inodes+0x30e/0x830
[  443.358860][ T6041]  f2fs_write_checkpoint+0xa3d/0x2710
[  443.358897][ T6041]  ? __pfx_f2fs_write_checkpoint+0x10/0x10
[  443.358963][ T6041]  kill_f2fs_super+0x2dd/0x700
[  443.359015][ T6041]  ? __pfx_kill_f2fs_super+0x10/0x10
[  443.359039][ T6041]  ? call_rcu+0x64b/0x8b0
[  443.359050][ T6041]  ? lockdep_hardirqs_on+0x7a/0x110
[  443.359073][ T6041]  deactivate_locked_super+0xbc/0x110
[  443.359093][ T6041]  cleanup_mnt+0x3d3/0x460
[  443.359108][ T6041]  task_work_run+0x1d9/0x270
[  443.359128][ T6041]  ? __pfx_task_work_run+0x10/0x10
[  443.359152][ T6041]  exit_to_user_mode_loop+0x1fa/0x730
[  443.359166][ T6041]  ? rcu_is_watching+0x15/0xb0
[  443.359184][ T6041]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  443.359198][ T6041]  do_syscall_64+0x353/0x580
[  443.359212][ T6041]  ? trace_irq_disable+0x3b/0x140
[  443.359230][ T6041]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  443.359250][ T6041] RIP: 0033:0x7fc736b9f257
[  443.359263][ T6041] Code: a2 c7 05 9c 44 25 00 00 00 00 00 eb 96 e8 e1 12 00 00 90 31 f6 e9 09 00 00 00 66 0f 1f 84 00 00 00 00 00 b8 a6 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 01 c3 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8
[  443.359275][ T6041] RSP: 002b:00007fffd6f1ae68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
[  443.359288][ T6041] RAX: 0000000000000000 RBX: 00007fc736c3445c RCX: 00007fc736b9f257
[  443.359298][ T6041] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007fffd6f1af20
[  443.359304][ T6041] RBP: 00007fffd6f1af20 R08: 00007fffd6f1bf20 R09: 00000000ffffffff
[  443.359313][ T6041] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fffd6f1bfb0
[  443.359320][ T6041] R13: 00007fc736c3445c R14: 000000000006c339 R15: 00007fffd6f1bff0
[  443.359339][ T6041]  </TASK>
[  443.499892][ T6041] F2FS-fs (loop0): Stopped filesystem due to reason: 3
[  443.719359][T10190] loop2: detected capacity change from 0 to 40427
[  443.730621][T10190] F2FS-fs (loop2): Small segment_count (9 < 1 * 24)
[  443.733631][T10190] F2FS-fs (loop2): Can't find valid F2FS filesystem in 1th superblock
[  443.826669][T10190] F2FS-fs (loop2): f2fs_recover_fsync_data: recovery fsync data, check_only: 0
[  443.842589][T10190] F2FS-fs (loop2): Try to recover 1th superblock, ret: 0
[  443.848999][T10190] F2FS-fs (loop2): Mounted with checkpoint version = 48b305e5
[  443.882615][ T6048] CPU: 1 UID: 0 PID: 6048 Comm: syz-executor Not tainted syzkaller #0 PREEMPT(full) 
[  443.882631][ T6048] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
[  443.882636][ T6048] Call Trace:
[  443.882640][ T6048]  <TASK>
[  443.882644][ T6048]  dump_stack_lvl+0xe8/0x150
[  443.882662][ T6048]  f2fs_stop_checkpoint+0x3f6/0x5d0
[  443.882675][ T6048]  f2fs_write_end_io+0x124b/0x1710
[  443.882693][ T6048]  __submit_merged_bio+0x258/0x6a0
[  443.882702][ T6048]  ? rcu_is_watching+0x15/0xb0
[  443.882716][ T6048]  __submit_merged_write_cond+0x3c9/0x4e0
[  443.882728][ T6048]  ? __pfx___submit_merged_write_cond+0x10/0x10
[  443.882745][ T6048]  f2fs_write_data_pages+0x2a27/0x36f0
[  443.882755][ T6048]  ? __lock_acquire+0x683/0x2cf0
[  443.882778][ T6048]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  443.882811][ T6048]  ? __pfx_hlock_conflict+0x10/0x10
[  443.882820][ T6048]  ? __bfs+0x153/0x290
[  443.882832][ T6048]  ? __pfx_hlock_conflict+0x10/0x10
[  443.882853][ T6048]  ? lockdep_unlock+0x5d/0xd0
[  443.882865][ T6048]  ? __lock_acquire+0x13e8/0x2cf0
[  443.882897][ T6048]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  443.882911][ T6048]  do_writepages+0x338/0x560
[  443.882926][ T6048]  ? do_raw_spin_unlock+0x4d/0x210
[  443.882936][ T6048]  filemap_fdatawrite+0x1e9/0x2f0
[  443.882948][ T6048]  ? __pfx_filemap_fdatawrite+0x10/0x10
[  443.883037][ T6048]  ? do_raw_spin_unlock+0x4d/0x210
[  443.883054][ T6048]  f2fs_sync_dirty_inodes+0x30e/0x830
[  443.883071][ T6048]  f2fs_write_checkpoint+0xa3d/0x2710
[  443.883095][ T6048]  ? __pfx_f2fs_write_checkpoint+0x10/0x10
[  443.883125][ T6048]  kill_f2fs_super+0x2dd/0x700
[  443.883139][ T6048]  ? __pfx_kill_f2fs_super+0x10/0x10
[  443.883154][ T6048]  ? call_rcu+0x64b/0x8b0
[  443.883160][ T6048]  ? lockdep_hardirqs_on+0x7a/0x110
[  443.883176][ T6048]  deactivate_locked_super+0xbc/0x110
[  443.883188][ T6048]  cleanup_mnt+0x3d3/0x460
[  443.883198][ T6048]  task_work_run+0x1d9/0x270
[  443.883212][ T6048]  ? __pfx_task_work_run+0x10/0x10
[  443.883226][ T6048]  exit_to_user_mode_loop+0x1fa/0x730
[  443.883235][ T6048]  ? rcu_is_watching+0x15/0xb0
[  443.883246][ T6048]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  443.883254][ T6048]  do_syscall_64+0x353/0x580
[  443.883264][ T6048]  ? trace_irq_disable+0x3b/0x140
[  443.883276][ T6048]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  443.883283][ T6048] RIP: 0033:0x7fc5e679f257
[  443.883291][ T6048] Code: a2 c7 05 9c 44 25 00 00 00 00 00 eb 96 e8 e1 12 00 00 90 31 f6 e9 09 00 00 00 66 0f 1f 84 00 00 00 00 00 b8 a6 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 01 c3 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8
[  443.883298][ T6048] RSP: 002b:00007fff49366408 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
[  443.883307][ T6048] RAX: 0000000000000000 RBX: 00007fc5e683445c RCX: 00007fc5e679f257
[  443.883312][ T6048] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007fff493664c0
[  443.883317][ T6048] RBP: 00007fff493664c0 R08: 00007fff493674c0 R09: 00000000ffffffff
[  443.883322][ T6048] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fff49367550
[  443.883326][ T6048] R13: 00007fc5e683445c R14: 000000000006c545 R15: 00007fff49367590
[  443.883338][ T6048]  </TASK>
[  443.886452][ T6048] F2FS-fs (loop2): Stopped filesystem due to reason: 3
[  444.016166][T10196] loop0: detected capacity change from 0 to 40427
[  444.020198][T10192] loop1: detected capacity change from 0 to 40427
[  444.022466][T10196] F2FS-fs (loop0): Small segment_count (9 < 1 * 24)
[  444.024790][T10192] F2FS-fs (loop1): Small segment_count (9 < 1 * 24)
[  444.026480][T10196] F2FS-fs (loop0): Can't find valid F2FS filesystem in 1th superblock
[  444.028617][T10192] F2FS-fs (loop1): Can't find valid F2FS filesystem in 1th superblock
[  444.098600][T10192] F2FS-fs (loop1): f2fs_recover_fsync_data: recovery fsync data, check_only: 0
[  444.116030][T10192] F2FS-fs (loop1): Try to recover 1th superblock, ret: 0
[  444.123688][T10196] F2FS-fs (loop0): f2fs_recover_fsync_data: recovery fsync data, check_only: 0
[  444.126789][T10192] F2FS-fs (loop1): Mounted with checkpoint version = 48b305e5
[  444.140285][T10196] F2FS-fs (loop0): Try to recover 1th superblock, ret: 0
[  444.145609][T10196] F2FS-fs (loop0): Mounted with checkpoint version = 48b305e5
[  444.175861][ T6044] CPU: 1 UID: 0 PID: 6044 Comm: syz-executor Not tainted syzkaller #0 PREEMPT(full) 
[  444.175878][ T6044] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
[  444.175884][ T6044] Call Trace:
[  444.175888][ T6044]  <TASK>
[  444.175892][ T6044]  dump_stack_lvl+0xe8/0x150
[  444.175909][ T6044]  f2fs_stop_checkpoint+0x3f6/0x5d0
[  444.175922][ T6044]  f2fs_write_end_io+0x124b/0x1710
[  444.175941][ T6044]  __submit_merged_bio+0x258/0x6a0
[  444.175949][ T6044]  ? rcu_is_watching+0x15/0xb0
[  444.175996][ T6044]  __submit_merged_write_cond+0x3c9/0x4e0
[  444.176008][ T6044]  ? __pfx___submit_merged_write_cond+0x10/0x10
[  444.176025][ T6044]  f2fs_write_data_pages+0x2a27/0x36f0
[  444.176035][ T6044]  ? __lock_acquire+0x683/0x2cf0
[  444.176057][ T6044]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  444.176073][ T6044]  ? __lock_acquire+0x683/0x2cf0
[  444.176092][ T6044]  ? do_raw_spin_lock+0x12b/0x2f0
[  444.176099][ T6044]  ? __pfx_hlock_conflict+0x10/0x10
[  444.176105][ T6044]  ? __bfs+0x153/0x290
[  444.176113][ T6044]  ? __pfx_hlock_conflict+0x10/0x10
[  444.176126][ T6044]  ? lockdep_unlock+0x5d/0xd0
[  444.176133][ T6044]  ? __lock_acquire+0x13e8/0x2cf0
[  444.176151][ T6044]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  444.176161][ T6044]  do_writepages+0x338/0x560
[  444.176176][ T6044]  ? do_raw_spin_unlock+0x4d/0x210
[  444.176185][ T6044]  filemap_fdatawrite+0x1e9/0x2f0
[  444.176197][ T6044]  ? __pfx_filemap_fdatawrite+0x10/0x10
[  444.176223][ T6044]  ? do_raw_spin_unlock+0x4d/0x210
[  444.176232][ T6044]  f2fs_sync_dirty_inodes+0x30e/0x830
[  444.176248][ T6044]  f2fs_write_checkpoint+0xa3d/0x2710
[  444.176270][ T6044]  ? __pfx_f2fs_write_checkpoint+0x10/0x10
[  444.176316][ T6044]  kill_f2fs_super+0x2dd/0x700
[  444.176332][ T6044]  ? __pfx_kill_f2fs_super+0x10/0x10
[  444.176346][ T6044]  ? call_rcu+0x64b/0x8b0
[  444.176353][ T6044]  ? lockdep_hardirqs_on+0x7a/0x110
[  444.176367][ T6044]  deactivate_locked_super+0xbc/0x110
[  444.176379][ T6044]  cleanup_mnt+0x3d3/0x460
[  444.176389][ T6044]  task_work_run+0x1d9/0x270
[  444.176402][ T6044]  ? __pfx_task_work_run+0x10/0x10
[  444.176416][ T6044]  exit_to_user_mode_loop+0x1fa/0x730
[  444.176426][ T6044]  ? rcu_is_watching+0x15/0xb0
[  444.176436][ T6044]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  444.176444][ T6044]  do_syscall_64+0x353/0x580
[  444.176454][ T6044]  ? trace_irq_disable+0x3b/0x140
[  444.176466][ T6044]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  444.176473][ T6044] RIP: 0033:0x7fc4dff9f257
[  444.176482][ T6044] Code: a2 c7 05 9c 44 25 00 00 00 00 00 eb 96 e8 e1 12 00 00 90 31 f6 e9 09 00 00 00 66 0f 1f 84 00 00 00 00 00 b8 a6 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 01 c3 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8
[  444.176488][ T6044] RSP: 002b:00007fff836538d8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
[  444.176498][ T6044] RAX: 0000000000000000 RBX: 00007fc4e003445c RCX: 00007fc4dff9f257
[  444.176503][ T6044] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007fff83653990
[  444.176507][ T6044] RBP: 00007fff83653990 R08: 00007fff83654990 R09: 00000000ffffffff
[  444.176512][ T6044] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fff83654a20
[  444.176516][ T6044] R13: 00007fc4e003445c R14: 000000000006c65f R15: 00007fff83654a60
[  444.176529][ T6044]  </TASK>
[  444.177592][ T6044] F2FS-fs (loop1): Stopped filesystem due to reason: 3
[  444.294283][ T6041] CPU: 0 UID: 0 PID: 6041 Comm: syz-executor Not tainted syzkaller #0 PREEMPT(full) 
[  444.294306][ T6041] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
[  444.294315][ T6041] Call Trace:
[  444.294321][ T6041]  <TASK>
[  444.294327][ T6041]  dump_stack_lvl+0xe8/0x150
[  444.294351][ T6041]  f2fs_stop_checkpoint+0x3f6/0x5d0
[  444.294372][ T6041]  f2fs_write_end_io+0x124b/0x1710
[  444.294404][ T6041]  __submit_merged_bio+0x258/0x6a0
[  444.294420][ T6041]  ? rcu_is_watching+0x15/0xb0
[  444.294442][ T6041]  __submit_merged_write_cond+0x3c9/0x4e0
[  444.294463][ T6041]  ? __pfx___submit_merged_write_cond+0x10/0x10
[  444.294495][ T6041]  f2fs_write_data_pages+0x2a27/0x36f0
[  444.294536][ T6041]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  444.294583][ T6041]  ? __pfx_hlock_conflict+0x10/0x10
[  444.294596][ T6041]  ? __bfs+0x153/0x290
[  444.294611][ T6041]  ? __pfx_hlock_conflict+0x10/0x10
[  444.294655][ T6041]  ? lockdep_unlock+0x5d/0xd0
[  444.294670][ T6041]  ? __lock_acquire+0x13e8/0x2cf0
[  444.294702][ T6041]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  444.294720][ T6041]  do_writepages+0x338/0x560
[  444.294752][ T6041]  ? do_raw_spin_unlock+0x4d/0x210
[  444.294769][ T6041]  filemap_fdatawrite+0x1e9/0x2f0
[  444.294789][ T6041]  ? __pfx_filemap_fdatawrite+0x10/0x10
[  444.294835][ T6041]  ? do_raw_spin_unlock+0x4d/0x210
[  444.294853][ T6041]  f2fs_sync_dirty_inodes+0x30e/0x830
[  444.294880][ T6041]  f2fs_write_checkpoint+0xa3d/0x2710
[  444.294920][ T6041]  ? __pfx_f2fs_write_checkpoint+0x10/0x10
[  444.295000][ T6041]  kill_f2fs_super+0x2dd/0x700
[  444.295026][ T6041]  ? __pfx_kill_f2fs_super+0x10/0x10
[  444.295051][ T6041]  ? call_rcu+0x64b/0x8b0
[  444.295062][ T6041]  ? lockdep_hardirqs_on+0x7a/0x110
[  444.295087][ T6041]  deactivate_locked_super+0xbc/0x110
[  444.295108][ T6041]  cleanup_mnt+0x3d3/0x460
[  444.295125][ T6041]  task_work_run+0x1d9/0x270
[  444.295146][ T6041]  ? __pfx_task_work_run+0x10/0x10
[  444.295170][ T6041]  exit_to_user_mode_loop+0x1fa/0x730
[  444.295186][ T6041]  ? rcu_is_watching+0x15/0xb0
[  444.295203][ T6041]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  444.295216][ T6041]  do_syscall_64+0x353/0x580
[  444.295231][ T6041]  ? trace_irq_disable+0x3b/0x140
[  444.295250][ T6041]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  444.295263][ T6041] RIP: 0033:0x7fc736b9f257
[  444.295275][ T6041] Code: a2 c7 05 9c 44 25 00 00 00 00 00 eb 96 e8 e1 12 00 00 90 31 f6 e9 09 00 00 00 66 0f 1f 84 00 00 00 00 00 b8 a6 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 01 c3 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8
[  444.295287][ T6041] RSP: 002b:00007fffd6f1ae68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
[  444.295301][ T6041] RAX: 0000000000000000 RBX: 00007fc736c3445c RCX: 00007fc736b9f257
[  444.295309][ T6041] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007fffd6f1af20
[  444.295316][ T6041] RBP: 00007fffd6f1af20 R08: 00007fffd6f1bf20 R09: 00000000ffffffff
[  444.295325][ T6041] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fffd6f1bfb0
[  444.295332][ T6041] R13: 00007fc736c3445c R14: 000000000006c6e9 R15: 00007fffd6f1bff0
[  444.295353][ T6041]  </TASK>
[  444.300062][ T6041] F2FS-fs (loop0): Stopped filesystem due to reason: 3
[  444.577416][T10202] loop2: detected capacity change from 0 to 40427
[  444.600824][T10202] F2FS-fs (loop2): Small segment_count (9 < 1 * 24)
[  444.617443][T10202] F2FS-fs (loop2): Can't find valid F2FS filesystem in 1th superblock
[  444.688597][T10202] F2FS-fs (loop2): f2fs_recover_fsync_data: recovery fsync data, check_only: 0
[  444.695688][T10202] F2FS-fs (loop2): Try to recover 1th superblock, ret: 0
[  444.700175][T10202] F2FS-fs (loop2): Mounted with checkpoint version = 48b305e5
[  444.705475][   T34] kauditd_printk_skb: 22 callbacks suppressed
[  444.705487][   T34] audit: type=1800 audit(1785886825.124:1983): pid=10202 uid=0 auid=4294967295 ses=4294967295 subj=unconfined op=collect_data cause=failed(directio) comm="syz.2.1009" name="file1" dev="loop2" ino=10 res=0 errno=0
[  444.718219][   T34] audit: type=1800 audit(1785886825.124:1984): pid=10202 uid=0 auid=4294967295 ses=4294967295 subj=unconfined op=collect_data cause=failed(directio) comm="syz.2.1009" name="file1" dev="loop2" ino=10 res=0 errno=0
[  444.732810][ T6048] CPU: 1 UID: 0 PID: 6048 Comm: syz-executor Not tainted syzkaller #0 PREEMPT(full) 
[  444.732825][ T6048] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
[  444.732830][ T6048] Call Trace:
[  444.732834][ T6048]  <TASK>
[  444.732838][ T6048]  dump_stack_lvl+0xe8/0x150
[  444.732855][ T6048]  f2fs_stop_checkpoint+0x3f6/0x5d0
[  444.732868][ T6048]  f2fs_write_end_io+0x124b/0x1710
[  444.732886][ T6048]  __submit_merged_bio+0x258/0x6a0
[  444.732895][ T6048]  ? rcu_is_watching+0x15/0xb0
[  444.732908][ T6048]  __submit_merged_write_cond+0x3c9/0x4e0
[  444.732920][ T6048]  ? __pfx___submit_merged_write_cond+0x10/0x10
[  444.732936][ T6048]  f2fs_write_data_pages+0x2a27/0x36f0
[  444.733001][ T6048]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  444.733039][ T6048]  ? __pfx_hlock_conflict+0x10/0x10
[  444.733045][ T6048]  ? __bfs+0x153/0x290
[  444.733055][ T6048]  ? __pfx_hlock_conflict+0x10/0x10
[  444.733067][ T6048]  ? lockdep_unlock+0x5d/0xd0
[  444.733074][ T6048]  ? __lock_acquire+0x13e8/0x2cf0
[  444.733092][ T6048]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  444.733102][ T6048]  do_writepages+0x338/0x560
[  444.733116][ T6048]  ? do_raw_spin_unlock+0x4d/0x210
[  444.733125][ T6048]  filemap_fdatawrite+0x1e9/0x2f0
[  444.733138][ T6048]  ? __pfx_filemap_fdatawrite+0x10/0x10
[  444.733181][ T6048]  ? do_raw_spin_unlock+0x4d/0x210
[  444.733192][ T6048]  f2fs_sync_dirty_inodes+0x30e/0x830
[  444.733208][ T6048]  f2fs_write_checkpoint+0xa3d/0x2710
[  444.733229][ T6048]  ? __pfx_f2fs_write_checkpoint+0x10/0x10
[  444.733259][ T6048]  kill_f2fs_super+0x2dd/0x700
[  444.733297][ T6048]  ? __pfx_kill_f2fs_super+0x10/0x10
[  444.733318][ T6048]  ? call_rcu+0x64b/0x8b0
[  444.733327][ T6048]  ? lockdep_hardirqs_on+0x7a/0x110
[  444.733346][ T6048]  deactivate_locked_super+0xbc/0x110
[  444.733364][ T6048]  cleanup_mnt+0x3d3/0x460
[  444.733379][ T6048]  task_work_run+0x1d9/0x270
[  444.733397][ T6048]  ? __pfx_task_work_run+0x10/0x10
[  444.733410][ T6048]  exit_to_user_mode_loop+0x1fa/0x730
[  444.733420][ T6048]  ? rcu_is_watching+0x15/0xb0
[  444.733430][ T6048]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
2026/08/04 23:40:25 executed programs: 1001
[  444.733438][ T6048]  do_syscall_64+0x353/0x580
[  444.733446][ T6048]  ? trace_irq_disable+0x3b/0x140
[  444.733458][ T6048]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  444.733466][ T6048] RIP: 0033:0x7fc5e679f257
[  444.733474][ T6048] Code: a2 c7 05 9c 44 25 00 00 00 00 00 eb 96 e8 e1 12 00 00 90 31 f6 e9 09 00 00 00 66 0f 1f 84 00 00 00 00 00 b8 a6 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 01 c3 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8
[  444.733481][ T6048] RSP: 002b:00007fff49366408 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
[  444.733490][ T6048] RAX: 0000000000000000 RBX: 00007fc5e683445c RCX: 00007fc5e679f257
[  444.733495][ T6048] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007fff493664c0
[  444.733500][ T6048] RBP: 00007fff493664c0 R08: 00007fff493674c0 R09: 00000000ffffffff
[  444.733512][ T6048] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fff49367550
[  444.733517][ T6048] R13: 00007fc5e683445c R14: 000000000006c895 R15: 00007fff49367590
[  444.733529][ T6048]  </TASK>
[  444.733596][ T6048] F2FS-fs (loop2): Stopped filesystem due to reason: 3
[  444.903054][T10208] loop0: detected capacity change from 0 to 40427
[  444.907923][T10208] F2FS-fs (loop0): Small segment_count (9 < 1 * 24)
[  444.917519][T10208] F2FS-fs (loop0): Can't find valid F2FS filesystem in 1th superblock
[  444.939284][T10204] loop1: detected capacity change from 0 to 40427
[  444.950679][T10204] F2FS-fs (loop1): Small segment_count (9 < 1 * 24)
[  444.952804][T10204] F2FS-fs (loop1): Can't find valid F2FS filesystem in 1th superblock
[  444.993020][T10208] F2FS-fs (loop0): f2fs_recover_fsync_data: recovery fsync data, check_only: 0
[  445.006127][T10204] F2FS-fs (loop1): f2fs_recover_fsync_data: recovery fsync data, check_only: 0
[  445.015800][T10208] F2FS-fs (loop0): Try to recover 1th superblock, ret: 0
[  445.015979][T10204] F2FS-fs (loop1): Try to recover 1th superblock, ret: 0
[  445.021353][T10204] F2FS-fs (loop1): Mounted with checkpoint version = 48b305e5
[  445.024417][T10208] F2FS-fs (loop0): Mounted with checkpoint version = 48b305e5
[  445.029932][   T34] audit: type=1800 audit(1785886825.454:1985): pid=10208 uid=0 auid=4294967295 ses=4294967295 subj=unconfined op=collect_data cause=failed(directio) comm="syz.0.1011" name="file1" dev="loop0" ino=10 res=0 errno=0
[  445.039169][   T34] audit: type=1800 audit(1785886825.454:1986): pid=10204 uid=0 auid=4294967295 ses=4294967295 subj=unconfined op=collect_data cause=failed(directio) comm="syz.1.1010" name="file1" dev="loop1" ino=10 res=0 errno=0
[  445.047040][   T34] audit: type=1800 audit(1785886825.454:1987): pid=10208 uid=0 auid=4294967295 ses=4294967295 subj=unconfined op=collect_data cause=failed(directio) comm="syz.0.1011" name="file1" dev="loop0" ino=10 res=0 errno=0
[  445.054906][   T34] audit: type=1800 audit(1785886825.454:1988): pid=10204 uid=0 auid=4294967295 ses=4294967295 subj=unconfined op=collect_data cause=failed(directio) comm="syz.1.1010" name="file1" dev="loop1" ino=10 res=0 errno=0
[  445.072226][ T6041] CPU: 0 UID: 0 PID: 6041 Comm: syz-executor Not tainted syzkaller #0 PREEMPT(full) 
[  445.072240][ T6041] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
[  445.072245][ T6041] Call Trace:
[  445.072249][ T6041]  <TASK>
[  445.072253][ T6041]  dump_stack_lvl+0xe8/0x150
[  445.072268][ T6041]  f2fs_stop_checkpoint+0x3f6/0x5d0
[  445.072280][ T6041]  f2fs_write_end_io+0x124b/0x1710
[  445.072298][ T6041]  __submit_merged_bio+0x258/0x6a0
[  445.072306][ T6041]  ? rcu_is_watching+0x15/0xb0
[  445.072319][ T6041]  __submit_merged_write_cond+0x3c9/0x4e0
[  445.072331][ T6041]  ? __pfx___submit_merged_write_cond+0x10/0x10
[  445.072349][ T6041]  f2fs_write_data_pages+0x2a27/0x36f0
[  445.072371][ T6041]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  445.072397][ T6041]  ? __pfx_hlock_conflict+0x10/0x10
[  445.072403][ T6041]  ? __bfs+0x153/0x290
[  445.072412][ T6041]  ? __pfx_hlock_conflict+0x10/0x10
[  445.072424][ T6041]  ? lockdep_unlock+0x5d/0xd0
[  445.072432][ T6041]  ? __lock_acquire+0x13e8/0x2cf0
[  445.072450][ T6041]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  445.072461][ T6041]  do_writepages+0x338/0x560
[  445.072474][ T6041]  ? do_raw_spin_unlock+0x4d/0x210
[  445.072484][ T6041]  filemap_fdatawrite+0x1e9/0x2f0
[  445.072495][ T6041]  ? __pfx_filemap_fdatawrite+0x10/0x10
[  445.072521][ T6041]  ? do_raw_spin_unlock+0x4d/0x210
[  445.072530][ T6041]  f2fs_sync_dirty_inodes+0x30e/0x830
[  445.072546][ T6041]  f2fs_write_checkpoint+0xa3d/0x2710
[  445.072567][ T6041]  ? __pfx_f2fs_write_checkpoint+0x10/0x10
[  445.072609][ T6041]  kill_f2fs_super+0x2dd/0x700
[  445.072630][ T6041]  ? __pfx_kill_f2fs_super+0x10/0x10
[  445.072653][ T6041]  ? call_rcu+0x64b/0x8b0
[  445.072666][ T6041]  ? lockdep_hardirqs_on+0x7a/0x110
[  445.072687][ T6041]  deactivate_locked_super+0xbc/0x110
[  445.072698][ T6041]  cleanup_mnt+0x3d3/0x460
[  445.072708][ T6041]  task_work_run+0x1d9/0x270
[  445.072719][ T6041]  ? __pfx_task_work_run+0x10/0x10
[  445.072733][ T6041]  exit_to_user_mode_loop+0x1fa/0x730
[  445.072749][ T6041]  ? rcu_is_watching+0x15/0xb0
[  445.072761][ T6041]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  445.072769][ T6041]  do_syscall_64+0x353/0x580
[  445.072778][ T6041]  ? trace_irq_disable+0x3b/0x140
[  445.072790][ T6041]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  445.072816][ T6041] RIP: 0033:0x7fc736b9f257
[  445.072826][ T6041] Code: a2 c7 05 9c 44 25 00 00 00 00 00 eb 96 e8 e1 12 00 00 90 31 f6 e9 09 00 00 00 66 0f 1f 84 00 00 00 00 00 b8 a6 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 01 c3 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8
[  445.072833][ T6041] RSP: 002b:00007fffd6f1ae68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
[  445.072842][ T6041] RAX: 0000000000000000 RBX: 00007fc736c3445c RCX: 00007fc736b9f257
[  445.072848][ T6041] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007fffd6f1af20
[  445.072853][ T6041] RBP: 00007fffd6f1af20 R08: 00007fffd6f1bf20 R09: 00000000ffffffff
[  445.072859][ T6041] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fffd6f1bfb0
[  445.072864][ T6041] R13: 00007fc736c3445c R14: 000000000006c9f4 R15: 00007fffd6f1bff0
[  445.072877][ T6041]  </TASK>
[  445.075614][ T6041] F2FS-fs (loop0): Stopped filesystem due to reason: 3
[  445.201826][ T6044] CPU: 1 UID: 0 PID: 6044 Comm: syz-executor Not tainted syzkaller #0 PREEMPT(full) 
[  445.201842][ T6044] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
[  445.201847][ T6044] Call Trace:
[  445.201851][ T6044]  <TASK>
[  445.201855][ T6044]  dump_stack_lvl+0xe8/0x150
[  445.201872][ T6044]  f2fs_stop_checkpoint+0x3f6/0x5d0
[  445.201884][ T6044]  f2fs_write_end_io+0x124b/0x1710
[  445.201903][ T6044]  __submit_merged_bio+0x258/0x6a0
[  445.201912][ T6044]  ? rcu_is_watching+0x15/0xb0
[  445.201925][ T6044]  __submit_merged_write_cond+0x3c9/0x4e0
[  445.201936][ T6044]  ? __pfx___submit_merged_write_cond+0x10/0x10
[  445.201998][ T6044]  f2fs_write_data_pages+0x2a27/0x36f0
[  445.202008][ T6044]  ? __lock_acquire+0x683/0x2cf0
[  445.202034][ T6044]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  445.202058][ T6044]  ? __pfx_hlock_conflict+0x10/0x10
[  445.202065][ T6044]  ? __bfs+0x153/0x290
[  445.202073][ T6044]  ? __pfx_hlock_conflict+0x10/0x10
[  445.202085][ T6044]  ? lockdep_unlock+0x5d/0xd0
[  445.202093][ T6044]  ? __lock_acquire+0x13e8/0x2cf0
[  445.202110][ T6044]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  445.202120][ T6044]  do_writepages+0x338/0x560
[  445.202134][ T6044]  ? do_raw_spin_unlock+0x4d/0x210
[  445.202144][ T6044]  filemap_fdatawrite+0x1e9/0x2f0
[  445.202156][ T6044]  ? __pfx_filemap_fdatawrite+0x10/0x10
[  445.202179][ T6044]  ? do_raw_spin_unlock+0x4d/0x210
[  445.202189][ T6044]  f2fs_sync_dirty_inodes+0x30e/0x830
[  445.202204][ T6044]  f2fs_write_checkpoint+0xa3d/0x2710
[  445.202225][ T6044]  ? __pfx_f2fs_write_checkpoint+0x10/0x10
[  445.202251][ T6044]  kill_f2fs_super+0x2dd/0x700
[  445.202264][ T6044]  ? __pfx_kill_f2fs_super+0x10/0x10
[  445.202278][ T6044]  ? call_rcu+0x64b/0x8b0
[  445.202284][ T6044]  ? lockdep_hardirqs_on+0x7a/0x110
[  445.202298][ T6044]  deactivate_locked_super+0xbc/0x110
[  445.202310][ T6044]  cleanup_mnt+0x3d3/0x460
[  445.202319][ T6044]  task_work_run+0x1d9/0x270
[  445.202332][ T6044]  ? __pfx_task_work_run+0x10/0x10
[  445.202345][ T6044]  exit_to_user_mode_loop+0x1fa/0x730
[  445.202355][ T6044]  ? rcu_is_watching+0x15/0xb0
[  445.202365][ T6044]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  445.202373][ T6044]  do_syscall_64+0x353/0x580
[  445.202382][ T6044]  ? trace_irq_disable+0x3b/0x140
[  445.202393][ T6044]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  445.202400][ T6044] RIP: 0033:0x7fc4dff9f257
[  445.202410][ T6044] Code: a2 c7 05 9c 44 25 00 00 00 00 00 eb 96 e8 e1 12 00 00 90 31 f6 e9 09 00 00 00 66 0f 1f 84 00 00 00 00 00 b8 a6 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 01 c3 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8
[  445.202416][ T6044] RSP: 002b:00007fff836538d8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
[  445.202426][ T6044] RAX: 0000000000000000 RBX: 00007fc4e003445c RCX: 00007fc4dff9f257
[  445.202431][ T6044] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007fff83653990
[  445.202435][ T6044] RBP: 00007fff83653990 R08: 00007fff83654990 R09: 00000000ffffffff
[  445.202440][ T6044] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fff83654a20
[  445.202444][ T6044] R13: 00007fc4e003445c R14: 000000000006c9fc R15: 00007fff83654a60
[  445.202455][ T6044]  </TASK>
[  445.202459][ T6044] F2FS-fs (loop1): Stopped filesystem due to reason: 3
[  445.387386][T10214] F2FS-fs (loop2): Small segment_count (9 < 1 * 24)
[  445.422030][T10214] F2FS-fs (loop2): Can't find valid F2FS filesystem in 1th superblock
[  445.526874][T10214] F2FS-fs (loop2): f2fs_recover_fsync_data: recovery fsync data, check_only: 0
[  445.538348][T10214] F2FS-fs (loop2): Try to recover 1th superblock, ret: 0
[  445.548022][T10214] F2FS-fs (loop2): Mounted with checkpoint version = 48b305e5
[  445.552654][   T34] audit: type=1800 audit(1785886825.974:1989): pid=10214 uid=0 auid=4294967295 ses=4294967295 subj=unconfined op=collect_data cause=failed(directio) comm="syz.2.1012" name="file1" dev="loop2" ino=10 res=0 errno=0
[  445.569627][   T34] audit: type=1800 audit(1785886825.994:1990): pid=10214 uid=0 auid=4294967295 ses=4294967295 subj=unconfined op=collect_data cause=failed(directio) comm="syz.2.1012" name="file1" dev="loop2" ino=10 res=0 errno=0
[  445.606258][ T6048] CPU: 1 UID: 0 PID: 6048 Comm: syz-executor Not tainted syzkaller #0 PREEMPT(full) 
[  445.606282][ T6048] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
[  445.606290][ T6048] Call Trace:
[  445.606297][ T6048]  <TASK>
[  445.606303][ T6048]  dump_stack_lvl+0xe8/0x150
[  445.606328][ T6048]  f2fs_stop_checkpoint+0x3f6/0x5d0
[  445.606347][ T6048]  f2fs_write_end_io+0x124b/0x1710
[  445.606379][ T6048]  __submit_merged_bio+0x258/0x6a0
[  445.606393][ T6048]  ? rcu_is_watching+0x15/0xb0
[  445.606415][ T6048]  __submit_merged_write_cond+0x3c9/0x4e0
[  445.606437][ T6048]  ? __pfx___submit_merged_write_cond+0x10/0x10
[  445.606467][ T6048]  f2fs_write_data_pages+0x2a27/0x36f0
[  445.606482][ T6048]  ? __lock_acquire+0x683/0x2cf0
[  445.606531][ T6048]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  445.606578][ T6048]  ? __pfx_hlock_conflict+0x10/0x10
[  445.606588][ T6048]  ? __bfs+0x153/0x290
[  445.606601][ T6048]  ? __pfx_hlock_conflict+0x10/0x10
[  445.606624][ T6048]  ? lockdep_unlock+0x5d/0xd0
[  445.606635][ T6048]  ? __lock_acquire+0x13e8/0x2cf0
[  445.606669][ T6048]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  445.606684][ T6048]  do_writepages+0x338/0x560
[  445.606708][ T6048]  ? do_raw_spin_unlock+0x4d/0x210
[  445.606724][ T6048]  filemap_fdatawrite+0x1e9/0x2f0
[  445.606743][ T6048]  ? __pfx_filemap_fdatawrite+0x10/0x10
[  445.606790][ T6048]  ? do_raw_spin_unlock+0x4d/0x210
[  445.606805][ T6048]  f2fs_sync_dirty_inodes+0x30e/0x830
[  445.606831][ T6048]  f2fs_write_checkpoint+0xa3d/0x2710
[  445.606870][ T6048]  ? __pfx_f2fs_write_checkpoint+0x10/0x10
[  445.606925][ T6048]  kill_f2fs_super+0x2dd/0x700
[  445.606981][ T6048]  ? __pfx_kill_f2fs_super+0x10/0x10
[  445.607024][ T6048]  ? call_rcu+0x64b/0x8b0
[  445.607036][ T6048]  ? lockdep_hardirqs_on+0x7a/0x110
[  445.607060][ T6048]  deactivate_locked_super+0xbc/0x110
[  445.607079][ T6048]  cleanup_mnt+0x3d3/0x460
[  445.607096][ T6048]  task_work_run+0x1d9/0x270
[  445.607116][ T6048]  ? __pfx_task_work_run+0x10/0x10
[  445.607138][ T6048]  exit_to_user_mode_loop+0x1fa/0x730
[  445.607153][ T6048]  ? rcu_is_watching+0x15/0xb0
[  445.607169][ T6048]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  445.607183][ T6048]  do_syscall_64+0x353/0x580
[  445.607195][ T6048]  ? trace_irq_disable+0x3b/0x140
[  445.607215][ T6048]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  445.607226][ T6048] RIP: 0033:0x7fc5e679f257
[  445.607240][ T6048] Code: a2 c7 05 9c 44 25 00 00 00 00 00 eb 96 e8 e1 12 00 00 90 31 f6 e9 09 00 00 00 66 0f 1f 84 00 00 00 00 00 b8 a6 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 01 c3 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8
[  445.607250][ T6048] RSP: 002b:00007fff49366408 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
[  445.607264][ T6048] RAX: 0000000000000000 RBX: 00007fc5e683445c RCX: 00007fc5e679f257
[  445.607273][ T6048] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007fff493664c0
[  445.607280][ T6048] RBP: 00007fff493664c0 R08: 00007fff493674c0 R09: 00000000ffffffff
[  445.607288][ T6048] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fff49367550
[  445.607295][ T6048] R13: 00007fc5e683445c R14: 000000000006cbf6 R15: 00007fff49367590
[  445.607316][ T6048]  </TASK>
[  445.608706][ T6048] F2FS-fs (loop2): Stopped filesystem due to reason: 3
[  445.755709][T10220] F2FS-fs (loop0): Small segment_count (9 < 1 * 24)
[  445.771846][T10220] F2FS-fs (loop0): Can't find valid F2FS filesystem in 1th superblock
[  445.805232][T10218] F2FS-fs (loop1): Small segment_count (9 < 1 * 24)
[  445.809338][T10218] F2FS-fs (loop1): Can't find valid F2FS filesystem in 1th superblock
[  445.847669][T10220] F2FS-fs (loop0): f2fs_recover_fsync_data: recovery fsync data, check_only: 0
[  445.861024][T10220] F2FS-fs (loop0): Try to recover 1th superblock, ret: 0
[  445.869627][T10220] F2FS-fs (loop0): Mounted with checkpoint version = 48b305e5
[  445.875336][   T34] audit: type=1800 audit(1785886826.294:1991): pid=10220 uid=0 auid=4294967295 ses=4294967295 subj=unconfined op=collect_data cause=failed(directio) comm="syz.0.1013" name="file1" dev="loop0" ino=10 res=0 errno=0
[  445.885976][T10218] F2FS-fs (loop1): f2fs_recover_fsync_data: recovery fsync data, check_only: 0
[  445.895863][T10218] F2FS-fs (loop1): Try to recover 1th superblock, ret: 0
[  445.898831][T10218] F2FS-fs (loop1): Mounted with checkpoint version = 48b305e5
[  445.901477][   T34] audit: type=1800 audit(1785886826.294:1992): pid=10220 uid=0 auid=4294967295 ses=4294967295 subj=unconfined op=collect_data cause=failed(directio) comm="syz.0.1013" name="file1" dev="loop0" ino=10 res=0 errno=0
[  445.910344][ T6041] CPU: 0 UID: 0 PID: 6041 Comm: syz-executor Not tainted syzkaller #0 PREEMPT(full) 
[  445.910358][ T6041] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
[  445.910363][ T6041] Call Trace:
[  445.910368][ T6041]  <TASK>
[  445.910371][ T6041]  dump_stack_lvl+0xe8/0x150
[  445.910386][ T6041]  f2fs_stop_checkpoint+0x3f6/0x5d0
[  445.910398][ T6041]  f2fs_write_end_io+0x124b/0x1710
[  445.910416][ T6041]  __submit_merged_bio+0x258/0x6a0
[  445.910424][ T6041]  ? rcu_is_watching+0x15/0xb0
[  445.910436][ T6041]  __submit_merged_write_cond+0x3c9/0x4e0
[  445.910448][ T6041]  ? __pfx___submit_merged_write_cond+0x10/0x10
[  445.910464][ T6041]  f2fs_write_data_pages+0x2a27/0x36f0
[  445.910473][ T6041]  ? __lock_acquire+0x683/0x2cf0
[  445.910494][ T6041]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  445.910518][ T6041]  ? __pfx_hlock_conflict+0x10/0x10
[  445.910524][ T6041]  ? __bfs+0x153/0x290
[  445.910533][ T6041]  ? __pfx_hlock_conflict+0x10/0x10
[  445.910545][ T6041]  ? lockdep_unlock+0x5d/0xd0
[  445.910552][ T6041]  ? __lock_acquire+0x13e8/0x2cf0
[  445.910569][ T6041]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  445.910579][ T6041]  do_writepages+0x338/0x560
[  445.910592][ T6041]  ? do_raw_spin_unlock+0x4d/0x210
[  445.910601][ T6041]  filemap_fdatawrite+0x1e9/0x2f0
[  445.910613][ T6041]  ? __pfx_filemap_fdatawrite+0x10/0x10
[  445.910654][ T6041]  ? do_raw_spin_unlock+0x4d/0x210
[  445.910665][ T6041]  f2fs_sync_dirty_inodes+0x30e/0x830
[  445.910681][ T6041]  f2fs_write_checkpoint+0xa3d/0x2710
[  445.910724][ T6041]  ? __pfx_f2fs_write_checkpoint+0x10/0x10
[  445.910752][ T6041]  kill_f2fs_super+0x2dd/0x700
[  445.910765][ T6041]  ? __pfx_kill_f2fs_super+0x10/0x10
[  445.910779][ T6041]  ? call_rcu+0x64b/0x8b0
[  445.910785][ T6041]  ? lockdep_hardirqs_on+0x7a/0x110
[  445.910799][ T6041]  deactivate_locked_super+0xbc/0x110
[  445.910815][ T6041]  cleanup_mnt+0x3d3/0x460
[  445.910829][ T6041]  task_work_run+0x1d9/0x270
[  445.910849][ T6041]  ? __pfx_task_work_run+0x10/0x10
[  445.910871][ T6041]  exit_to_user_mode_loop+0x1fa/0x730
[  445.910886][ T6041]  ? rcu_is_watching+0x15/0xb0
[  445.910902][ T6041]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  445.910916][ T6041]  do_syscall_64+0x353/0x580
[  445.910929][ T6041]  ? trace_irq_disable+0x3b/0x140
[  445.910974][ T6041]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  445.910985][ T6041] RIP: 0033:0x7fc736b9f257
[  445.910994][ T6041] Code: a2 c7 05 9c 44 25 00 00 00 00 00 eb 96 e8 e1 12 00 00 90 31 f6 e9 09 00 00 00 66 0f 1f 84 00 00 00 00 00 b8 a6 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 01 c3 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8
[  445.911000][ T6041] RSP: 002b:00007fffd6f1ae68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
[  445.911011][ T6041] RAX: 0000000000000000 RBX: 00007fc736c3445c RCX: 00007fc736b9f257
[  445.911016][ T6041] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007fffd6f1af20
[  445.911021][ T6041] RBP: 00007fffd6f1af20 R08: 00007fffd6f1bf20 R09: 00000000ffffffff
[  445.911026][ T6041] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fffd6f1bfb0
[  445.911030][ T6041] R13: 00007fc736c3445c R14: 000000000006cd29 R15: 00007fffd6f1bff0
[  445.911042][ T6041]  </TASK>
[  445.911714][ T6041] F2FS-fs (loop0): Stopped filesystem due to reason: 3
[  446.030964][ T6044] CPU: 1 UID: 0 PID: 6044 Comm: syz-executor Not tainted syzkaller #0 PREEMPT(full) 
[  446.030988][ T6044] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
[  446.030997][ T6044] Call Trace:
[  446.031004][ T6044]  <TASK>
[  446.031010][ T6044]  dump_stack_lvl+0xe8/0x150
[  446.031035][ T6044]  f2fs_stop_checkpoint+0x3f6/0x5d0
[  446.031056][ T6044]  f2fs_write_end_io+0x124b/0x1710
[  446.031087][ T6044]  __submit_merged_bio+0x258/0x6a0
[  446.031102][ T6044]  ? rcu_is_watching+0x15/0xb0
[  446.031125][ T6044]  __submit_merged_write_cond+0x3c9/0x4e0
[  446.031146][ T6044]  ? __pfx___submit_merged_write_cond+0x10/0x10
[  446.031174][ T6044]  f2fs_write_data_pages+0x2a27/0x36f0
[  446.031190][ T6044]  ? __lock_acquire+0x683/0x2cf0
[  446.031228][ T6044]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  446.031273][ T6044]  ? __pfx_hlock_conflict+0x10/0x10
[  446.031284][ T6044]  ? __bfs+0x153/0x290
[  446.031298][ T6044]  ? __pfx_hlock_conflict+0x10/0x10
[  446.031321][ T6044]  ? lockdep_unlock+0x5d/0xd0
[  446.031334][ T6044]  ? __lock_acquire+0x13e8/0x2cf0
[  446.031366][ T6044]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  446.031383][ T6044]  do_writepages+0x338/0x560
[  446.031409][ T6044]  ? do_raw_spin_unlock+0x4d/0x210
[  446.031425][ T6044]  filemap_fdatawrite+0x1e9/0x2f0
[  446.031445][ T6044]  ? __pfx_filemap_fdatawrite+0x10/0x10
[  446.031490][ T6044]  ? do_raw_spin_unlock+0x4d/0x210
[  446.031506][ T6044]  f2fs_sync_dirty_inodes+0x30e/0x830
[  446.031539][ T6044]  f2fs_write_checkpoint+0xa3d/0x2710
[  446.031578][ T6044]  ? __pfx_f2fs_write_checkpoint+0x10/0x10
[  446.031648][ T6044]  kill_f2fs_super+0x2dd/0x700
[  446.031674][ T6044]  ? __pfx_kill_f2fs_super+0x10/0x10
[  446.031698][ T6044]  ? call_rcu+0x64b/0x8b0
[  446.031710][ T6044]  ? lockdep_hardirqs_on+0x7a/0x110
[  446.031733][ T6044]  deactivate_locked_super+0xbc/0x110
[  446.031754][ T6044]  cleanup_mnt+0x3d3/0x460
[  446.031769][ T6044]  task_work_run+0x1d9/0x270
[  446.031790][ T6044]  ? __pfx_task_work_run+0x10/0x10
[  446.031815][ T6044]  exit_to_user_mode_loop+0x1fa/0x730
[  446.031830][ T6044]  ? rcu_is_watching+0x15/0xb0
[  446.031848][ T6044]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  446.031862][ T6044]  do_syscall_64+0x353/0x580
[  446.031876][ T6044]  ? trace_irq_disable+0x3b/0x140
[  446.031895][ T6044]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  446.031907][ T6044] RIP: 0033:0x7fc4dff9f257
[  446.031921][ T6044] Code: a2 c7 05 9c 44 25 00 00 00 00 00 eb 96 e8 e1 12 00 00 90 31 f6 e9 09 00 00 00 66 0f 1f 84 00 00 00 00 00 b8 a6 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 01 c3 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8
[  446.031957][ T6044] RSP: 002b:00007fff836538d8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
[  446.031973][ T6044] RAX: 0000000000000000 RBX: 00007fc4e003445c RCX: 00007fc4dff9f257
[  446.031982][ T6044] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007fff83653990
[  446.031990][ T6044] RBP: 00007fff83653990 R08: 00007fff83654990 R09: 00000000ffffffff
[  446.031998][ T6044] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fff83654a20
[  446.032004][ T6044] R13: 00007fc4e003445c R14: 000000000006cd8c R15: 00007fff83654a60
[  446.032025][ T6044]  </TASK>
[  446.032671][ T6044] F2FS-fs (loop1): Stopped filesystem due to reason: 3
[  446.296767][T10227] F2FS-fs (loop2): Small segment_count (9 < 1 * 24)
[  446.299009][T10227] F2FS-fs (loop2): Can't find valid F2FS filesystem in 1th superblock
[  446.364502][T10227] F2FS-fs (loop2): f2fs_recover_fsync_data: recovery fsync data, check_only: 0
[  446.370125][T10227] F2FS-fs (loop2): Try to recover 1th superblock, ret: 0
[  446.372810][T10227] F2FS-fs (loop2): Mounted with checkpoint version = 48b305e5
[  446.387351][ T6048] CPU: 0 UID: 0 PID: 6048 Comm: syz-executor Not tainted syzkaller #0 PREEMPT(full) 
[  446.387365][ T6048] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
[  446.387370][ T6048] Call Trace:
[  446.387374][ T6048]  <TASK>
[  446.387378][ T6048]  dump_stack_lvl+0xe8/0x150
[  446.387393][ T6048]  f2fs_stop_checkpoint+0x3f6/0x5d0
[  446.387404][ T6048]  f2fs_write_end_io+0x124b/0x1710
[  446.387421][ T6048]  __submit_merged_bio+0x258/0x6a0
[  446.387430][ T6048]  ? rcu_is_watching+0x15/0xb0
[  446.387443][ T6048]  __submit_merged_write_cond+0x3c9/0x4e0
[  446.387454][ T6048]  ? __pfx___submit_merged_write_cond+0x10/0x10
[  446.387471][ T6048]  f2fs_write_data_pages+0x2a27/0x36f0
[  446.387492][ T6048]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  446.387516][ T6048]  ? __pfx_hlock_conflict+0x10/0x10
[  446.387523][ T6048]  ? __bfs+0x153/0x290
[  446.387550][ T6048]  ? __pfx_hlock_conflict+0x10/0x10
[  446.387564][ T6048]  ? lockdep_unlock+0x5d/0xd0
[  446.387572][ T6048]  ? __lock_acquire+0x13e8/0x2cf0
[  446.387590][ T6048]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  446.387601][ T6048]  do_writepages+0x338/0x560
[  446.387614][ T6048]  ? do_raw_spin_unlock+0x4d/0x210
[  446.387624][ T6048]  filemap_fdatawrite+0x1e9/0x2f0
[  446.387636][ T6048]  ? __pfx_filemap_fdatawrite+0x10/0x10
[  446.387660][ T6048]  ? do_raw_spin_unlock+0x4d/0x210
[  446.387669][ T6048]  f2fs_sync_dirty_inodes+0x30e/0x830
[  446.387685][ T6048]  f2fs_write_checkpoint+0xa3d/0x2710
[  446.387706][ T6048]  ? __pfx_f2fs_write_checkpoint+0x10/0x10
[  446.387739][ T6048]  kill_f2fs_super+0x2dd/0x700
[  446.387753][ T6048]  ? __pfx_kill_f2fs_super+0x10/0x10
[  446.387767][ T6048]  ? call_rcu+0x64b/0x8b0
[  446.387773][ T6048]  ? lockdep_hardirqs_on+0x7a/0x110
[  446.387787][ T6048]  deactivate_locked_super+0xbc/0x110
[  446.387799][ T6048]  cleanup_mnt+0x3d3/0x460
[  446.387808][ T6048]  task_work_run+0x1d9/0x270
[  446.387820][ T6048]  ? __pfx_task_work_run+0x10/0x10
[  446.387834][ T6048]  exit_to_user_mode_loop+0x1fa/0x730
[  446.387843][ T6048]  ? rcu_is_watching+0x15/0xb0
[  446.387853][ T6048]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  446.387861][ T6048]  do_syscall_64+0x353/0x580
[  446.387872][ T6048]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  446.387879][ T6048] RIP: 0033:0x7fc5e679f257
[  446.387887][ T6048] Code: a2 c7 05 9c 44 25 00 00 00 00 00 eb 96 e8 e1 12 00 00 90 31 f6 e9 09 00 00 00 66 0f 1f 84 00 00 00 00 00 b8 a6 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 01 c3 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8
[  446.387893][ T6048] RSP: 002b:00007fff49366408 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
[  446.387902][ T6048] RAX: 0000000000000000 RBX: 00007fc5e683445c RCX: 00007fc5e679f257
[  446.387907][ T6048] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007fff493664c0
[  446.387912][ T6048] RBP: 00007fff493664c0 R08: 00007fff493674c0 R09: 00000000ffffffff
[  446.387916][ T6048] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fff49367550
[  446.387921][ T6048] R13: 00007fc5e683445c R14: 000000000006cf14 R15: 00007fff49367590
[  446.387959][ T6048]  </TASK>
[  446.388005][ T6048] F2FS-fs (loop2): Stopped filesystem due to reason: 3
[  446.648700][T10229] F2FS-fs (loop0): Small segment_count (9 < 1 * 24)
[  446.670011][T10229] F2FS-fs (loop0): Can't find valid F2FS filesystem in 1th superblock
[  446.711278][T10229] F2FS-fs (loop0): f2fs_recover_fsync_data: recovery fsync data, check_only: 0
[  446.717799][T10229] F2FS-fs (loop0): Try to recover 1th superblock, ret: 0
[  446.720725][T10229] F2FS-fs (loop0): Mounted with checkpoint version = 48b305e5
[  446.742485][ T6041] CPU: 1 UID: 0 PID: 6041 Comm: syz-executor Not tainted syzkaller #0 PREEMPT(full) 
[  446.742502][ T6041] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
[  446.742508][ T6041] Call Trace:
[  446.742512][ T6041]  <TASK>
[  446.742516][ T6041]  dump_stack_lvl+0xe8/0x150
[  446.742533][ T6041]  f2fs_stop_checkpoint+0x3f6/0x5d0
[  446.742546][ T6041]  f2fs_write_end_io+0x124b/0x1710
[  446.742564][ T6041]  __submit_merged_bio+0x258/0x6a0
[  446.742596][ T6041]  ? rcu_is_watching+0x15/0xb0
[  446.742613][ T6041]  __submit_merged_write_cond+0x3c9/0x4e0
[  446.742625][ T6041]  ? __pfx___submit_merged_write_cond+0x10/0x10
[  446.742647][ T6041]  f2fs_write_data_pages+0x2a27/0x36f0
[  446.742656][ T6041]  ? __lock_acquire+0x683/0x2cf0
[  446.742678][ T6041]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  446.742703][ T6041]  ? __pfx_hlock_conflict+0x10/0x10
[  446.742710][ T6041]  ? __bfs+0x153/0x290
[  446.742718][ T6041]  ? __pfx_hlock_conflict+0x10/0x10
[  446.742730][ T6041]  ? lockdep_unlock+0x5d/0xd0
[  446.742738][ T6041]  ? __lock_acquire+0x13e8/0x2cf0
[  446.742756][ T6041]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  446.742766][ T6041]  do_writepages+0x338/0x560
[  446.742781][ T6041]  ? do_raw_spin_unlock+0x4d/0x210
[  446.742791][ T6041]  filemap_fdatawrite+0x1e9/0x2f0
[  446.742802][ T6041]  ? __pfx_filemap_fdatawrite+0x10/0x10
[  446.742826][ T6041]  ? do_raw_spin_unlock+0x4d/0x210
[  446.742835][ T6041]  f2fs_sync_dirty_inodes+0x30e/0x830
[  446.742851][ T6041]  f2fs_write_checkpoint+0xa3d/0x2710
[  446.742872][ T6041]  ? __pfx_f2fs_write_checkpoint+0x10/0x10
[  446.742899][ T6041]  kill_f2fs_super+0x2dd/0x700
[  446.742912][ T6041]  ? __pfx_kill_f2fs_super+0x10/0x10
[  446.742960][ T6041]  ? call_rcu+0x64b/0x8b0
[  446.742969][ T6041]  ? lockdep_hardirqs_on+0x7a/0x110
[  446.742983][ T6041]  deactivate_locked_super+0xbc/0x110
[  446.742995][ T6041]  cleanup_mnt+0x3d3/0x460
[  446.743004][ T6041]  task_work_run+0x1d9/0x270
[  446.743018][ T6041]  ? __pfx_task_work_run+0x10/0x10
[  446.743031][ T6041]  exit_to_user_mode_loop+0x1fa/0x730
[  446.743040][ T6041]  ? rcu_is_watching+0x15/0xb0
[  446.743050][ T6041]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  446.743058][ T6041]  do_syscall_64+0x353/0x580
[  446.743067][ T6041]  ? trace_irq_disable+0x3b/0x140
[  446.743079][ T6041]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  446.743086][ T6041] RIP: 0033:0x7fc736b9f257
[  446.743094][ T6041] Code: a2 c7 05 9c 44 25 00 00 00 00 00 eb 96 e8 e1 12 00 00 90 31 f6 e9 09 00 00 00 66 0f 1f 84 00 00 00 00 00 b8 a6 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 01 c3 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8
[  446.743101][ T6041] RSP: 002b:00007fffd6f1ae68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
[  446.743110][ T6041] RAX: 0000000000000000 RBX: 00007fc736c3445c RCX: 00007fc736b9f257
[  446.743115][ T6041] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007fffd6f1af20
[  446.743119][ T6041] RBP: 00007fffd6f1af20 R08: 00007fffd6f1bf20 R09: 00000000ffffffff
[  446.743124][ T6041] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fffd6f1bfb0
[  446.743128][ T6041] R13: 00007fc736c3445c R14: 000000000006d079 R15: 00007fffd6f1bff0
[  446.743142][ T6041]  </TASK>
[  446.743747][ T6041] F2FS-fs (loop0): Stopped filesystem due to reason: 3
[  446.810446][T10233] F2FS-fs (loop1): Small segment_count (9 < 1 * 24)
[  446.873984][T10233] F2FS-fs (loop1): Can't find valid F2FS filesystem in 1th superblock
[  446.958909][T10233] F2FS-fs (loop1): f2fs_recover_fsync_data: recovery fsync data, check_only: 0
[  446.973410][T10233] F2FS-fs (loop1): Try to recover 1th superblock, ret: 0
[  446.976371][T10233] F2FS-fs (loop1): Mounted with checkpoint version = 48b305e5
[  446.998568][ T6044] CPU: 1 UID: 0 PID: 6044 Comm: syz-executor Not tainted syzkaller #0 PREEMPT(full) 
[  446.998592][ T6044] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
[  446.998601][ T6044] Call Trace:
[  446.998607][ T6044]  <TASK>
[  446.998614][ T6044]  dump_stack_lvl+0xe8/0x150
[  446.998649][ T6044]  f2fs_stop_checkpoint+0x3f6/0x5d0
[  446.998669][ T6044]  f2fs_write_end_io+0x124b/0x1710
[  446.998701][ T6044]  __submit_merged_bio+0x258/0x6a0
[  446.998716][ T6044]  ? rcu_is_watching+0x15/0xb0
[  446.998739][ T6044]  __submit_merged_write_cond+0x3c9/0x4e0
[  446.998760][ T6044]  ? __pfx___submit_merged_write_cond+0x10/0x10
[  446.998790][ T6044]  f2fs_write_data_pages+0x2a27/0x36f0
[  446.998829][ T6044]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  446.998875][ T6044]  ? __pfx_hlock_conflict+0x10/0x10
[  446.998888][ T6044]  ? __bfs+0x153/0x290
[  446.998903][ T6044]  ? __pfx_hlock_conflict+0x10/0x10
[  446.998955][ T6044]  ? lockdep_unlock+0x5d/0xd0
[  446.998971][ T6044]  ? __lock_acquire+0x13e8/0x2cf0
[  446.999007][ T6044]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  446.999025][ T6044]  do_writepages+0x338/0x560
[  446.999073][ T6044]  ? do_raw_spin_unlock+0x4d/0x210
[  446.999091][ T6044]  filemap_fdatawrite+0x1e9/0x2f0
[  446.999112][ T6044]  ? __pfx_filemap_fdatawrite+0x10/0x10
[  446.999160][ T6044]  ? do_raw_spin_unlock+0x4d/0x210
[  446.999177][ T6044]  f2fs_sync_dirty_inodes+0x30e/0x830
[  446.999207][ T6044]  f2fs_write_checkpoint+0xa3d/0x2710
[  446.999249][ T6044]  ? __pfx_f2fs_write_checkpoint+0x10/0x10
[  446.999306][ T6044]  kill_f2fs_super+0x2dd/0x700
[  446.999330][ T6044]  ? __pfx_kill_f2fs_super+0x10/0x10
[  446.999356][ T6044]  ? call_rcu+0x64b/0x8b0
[  446.999368][ T6044]  ? lockdep_hardirqs_on+0x7a/0x110
[  446.999393][ T6044]  deactivate_locked_super+0xbc/0x110
[  446.999435][ T6044]  cleanup_mnt+0x3d3/0x460
[  446.999453][ T6044]  task_work_run+0x1d9/0x270
[  446.999475][ T6044]  ? __pfx_task_work_run+0x10/0x10
[  446.999500][ T6044]  exit_to_user_mode_loop+0x1fa/0x730
[  446.999515][ T6044]  ? rcu_is_watching+0x15/0xb0
[  446.999534][ T6044]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  446.999548][ T6044]  do_syscall_64+0x353/0x580
[  446.999562][ T6044]  ? trace_irq_disable+0x3b/0x140
[  446.999583][ T6044]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  446.999595][ T6044] RIP: 0033:0x7fc4dff9f257
[  446.999609][ T6044] Code: a2 c7 05 9c 44 25 00 00 00 00 00 eb 96 e8 e1 12 00 00 90 31 f6 e9 09 00 00 00 66 0f 1f 84 00 00 00 00 00 b8 a6 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 01 c3 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8
[  446.999619][ T6044] RSP: 002b:00007fff836538d8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
[  446.999640][ T6044] RAX: 0000000000000000 RBX: 00007fc4e003445c RCX: 00007fc4dff9f257
[  446.999649][ T6044] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007fff83653990
[  446.999656][ T6044] RBP: 00007fff83653990 R08: 00007fff83654990 R09: 00000000ffffffff
[  446.999664][ T6044] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fff83654a20
[  446.999672][ T6044] R13: 00007fc4e003445c R14: 000000000006d179 R15: 00007fff83654a60
[  446.999694][ T6044]  </TASK>
[  447.141379][T10237] F2FS-fs (loop2): Small segment_count (9 < 1 * 24)
[  447.144073][T10237] F2FS-fs (loop2): Can't find valid F2FS filesystem in 1th superblock
[  447.178618][T10237] F2FS-fs (loop2): f2fs_recover_fsync_data: recovery fsync data, check_only: 0
[  447.184795][T10237] F2FS-fs (loop2): Try to recover 1th superblock, ret: 0
[  447.187478][T10237] F2FS-fs (loop2): Mounted with checkpoint version = 48b305e5
[  447.201582][ T6048] CPU: 0 UID: 0 PID: 6048 Comm: syz-executor Not tainted syzkaller #0 PREEMPT(full) 
[  447.201596][ T6048] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
[  447.201601][ T6048] Call Trace:
[  447.201604][ T6048]  <TASK>
[  447.201607][ T6048]  dump_stack_lvl+0xe8/0x150
[  447.201622][ T6048]  f2fs_stop_checkpoint+0x3f6/0x5d0
[  447.201633][ T6048]  f2fs_write_end_io+0x124b/0x1710
[  447.201650][ T6048]  __submit_merged_bio+0x258/0x6a0
[  447.201658][ T6048]  ? rcu_is_watching+0x15/0xb0
[  447.201671][ T6048]  __submit_merged_write_cond+0x3c9/0x4e0
[  447.201682][ T6048]  ? __pfx___submit_merged_write_cond+0x10/0x10
[  447.201698][ T6048]  f2fs_write_data_pages+0x2a27/0x36f0
[  447.201736][ T6048]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  447.201776][ T6048]  ? __pfx_hlock_conflict+0x10/0x10
[  447.201787][ T6048]  ? __bfs+0x153/0x290
[  447.201800][ T6048]  ? __pfx_hlock_conflict+0x10/0x10
[  447.201822][ T6048]  ? lockdep_unlock+0x5d/0xd0
[  447.201835][ T6048]  ? __lock_acquire+0x13e8/0x2cf0
[  447.201865][ T6048]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  447.201878][ T6048]  do_writepages+0x338/0x560
[  447.201891][ T6048]  ? do_raw_spin_unlock+0x4d/0x210
[  447.201901][ T6048]  filemap_fdatawrite+0x1e9/0x2f0
[  447.201940][ T6048]  ? __pfx_filemap_fdatawrite+0x10/0x10
[  447.201972][ T6048]  ? do_raw_spin_unlock+0x4d/0x210
[  447.201981][ T6048]  f2fs_sync_dirty_inodes+0x30e/0x830
[  447.201996][ T6048]  f2fs_write_checkpoint+0xa3d/0x2710
[  447.202017][ T6048]  ? __pfx_f2fs_write_checkpoint+0x10/0x10
[  447.202045][ T6048]  kill_f2fs_super+0x2dd/0x700
[  447.202058][ T6048]  ? __pfx_kill_f2fs_super+0x10/0x10
[  447.202072][ T6048]  ? call_rcu+0x64b/0x8b0
[  447.202078][ T6048]  ? lockdep_hardirqs_on+0x7a/0x110
[  447.202091][ T6048]  deactivate_locked_super+0xbc/0x110
[  447.202102][ T6048]  cleanup_mnt+0x3d3/0x460
[  447.202111][ T6048]  task_work_run+0x1d9/0x270
[  447.202123][ T6048]  ? __pfx_task_work_run+0x10/0x10
[  447.202136][ T6048]  exit_to_user_mode_loop+0x1fa/0x730
[  447.202162][ T6048]  ? rcu_is_watching+0x15/0xb0
[  447.202174][ T6048]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  447.202181][ T6048]  do_syscall_64+0x353/0x580
[  447.202189][ T6048]  ? trace_irq_disable+0x3b/0x140
[  447.202200][ T6048]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  447.202209][ T6048] RIP: 0033:0x7fc5e679f257
[  447.202218][ T6048] Code: a2 c7 05 9c 44 25 00 00 00 00 00 eb 96 e8 e1 12 00 00 90 31 f6 e9 09 00 00 00 66 0f 1f 84 00 00 00 00 00 b8 a6 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 01 c3 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8
[  447.202225][ T6048] RSP: 002b:00007fff49366408 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
[  447.202234][ T6048] RAX: 0000000000000000 RBX: 00007fc5e683445c RCX: 00007fc5e679f257
[  447.202239][ T6048] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007fff493664c0
[  447.202243][ T6048] RBP: 00007fff493664c0 R08: 00007fff493674c0 R09: 00000000ffffffff
[  447.202248][ T6048] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fff49367550
[  447.202252][ T6048] R13: 00007fc5e683445c R14: 000000000006d245 R15: 00007fff49367590
[  447.202264][ T6048]  </TASK>
[  447.202823][ T6048] F2FS-fs (loop2): Stopped filesystem due to reason: 3
[  447.261811][T10241] F2FS-fs (loop0): Small segment_count (9 < 1 * 24)
[  447.265505][ T6044] F2FS-fs (loop1): Stopped filesystem due to reason: 3
[  447.267109][T10241] F2FS-fs (loop0): Can't find valid F2FS filesystem in 1th superblock
[  447.344576][T10241] F2FS-fs (loop0): f2fs_recover_fsync_data: recovery fsync data, check_only: 0
[  447.363665][T10241] F2FS-fs (loop0): Try to recover 1th superblock, ret: 0
[  447.366625][T10241] F2FS-fs (loop0): Mounted with checkpoint version = 48b305e5
[  447.387131][ T6041] CPU: 0 UID: 0 PID: 6041 Comm: syz-executor Not tainted syzkaller #0 PREEMPT(full) 
[  447.387146][ T6041] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
[  447.387151][ T6041] Call Trace:
[  447.387155][ T6041]  <TASK>
[  447.387158][ T6041]  dump_stack_lvl+0xe8/0x150
[  447.387173][ T6041]  f2fs_stop_checkpoint+0x3f6/0x5d0
[  447.387185][ T6041]  f2fs_write_end_io+0x124b/0x1710
[  447.387203][ T6041]  __submit_merged_bio+0x258/0x6a0
[  447.387213][ T6041]  ? rcu_is_watching+0x15/0xb0
[  447.387226][ T6041]  __submit_merged_write_cond+0x3c9/0x4e0
[  447.387239][ T6041]  ? __pfx___submit_merged_write_cond+0x10/0x10
[  447.387256][ T6041]  f2fs_write_data_pages+0x2a27/0x36f0
[  447.387279][ T6041]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  447.387305][ T6041]  ? __pfx_hlock_conflict+0x10/0x10
[  447.387311][ T6041]  ? __bfs+0x153/0x290
[  447.387319][ T6041]  ? __pfx_hlock_conflict+0x10/0x10
[  447.387332][ T6041]  ? lockdep_unlock+0x5d/0xd0
[  447.387340][ T6041]  ? __lock_acquire+0x13e8/0x2cf0
[  447.387358][ T6041]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  447.387369][ T6041]  do_writepages+0x338/0x560
[  447.387383][ T6041]  ? do_raw_spin_unlock+0x4d/0x210
[  447.387415][ T6041]  filemap_fdatawrite+0x1e9/0x2f0
[  447.387428][ T6041]  ? __pfx_filemap_fdatawrite+0x10/0x10
[  447.387455][ T6041]  ? do_raw_spin_unlock+0x4d/0x210
[  447.387464][ T6041]  f2fs_sync_dirty_inodes+0x30e/0x830
[  447.387481][ T6041]  f2fs_write_checkpoint+0xa3d/0x2710
[  447.387504][ T6041]  ? __pfx_f2fs_write_checkpoint+0x10/0x10
[  447.387535][ T6041]  kill_f2fs_super+0x2dd/0x700
[  447.387549][ T6041]  ? __pfx_kill_f2fs_super+0x10/0x10
[  447.387564][ T6041]  ? call_rcu+0x64b/0x8b0
[  447.387570][ T6041]  ? lockdep_hardirqs_on+0x7a/0x110
[  447.387584][ T6041]  deactivate_locked_super+0xbc/0x110
[  447.387595][ T6041]  cleanup_mnt+0x3d3/0x460
[  447.387605][ T6041]  task_work_run+0x1d9/0x270
[  447.387616][ T6041]  ? __pfx_task_work_run+0x10/0x10
[  447.387630][ T6041]  exit_to_user_mode_loop+0x1fa/0x730
[  447.387640][ T6041]  ? rcu_is_watching+0x15/0xb0
[  447.387650][ T6041]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  447.387657][ T6041]  do_syscall_64+0x353/0x580
[  447.387665][ T6041]  ? trace_irq_disable+0x3b/0x140
[  447.387677][ T6041]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  447.387684][ T6041] RIP: 0033:0x7fc736b9f257
[  447.387693][ T6041] Code: a2 c7 05 9c 44 25 00 00 00 00 00 eb 96 e8 e1 12 00 00 90 31 f6 e9 09 00 00 00 66 0f 1f 84 00 00 00 00 00 b8 a6 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 01 c3 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8
[  447.387699][ T6041] RSP: 002b:00007fffd6f1ae68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
[  447.387713][ T6041] RAX: 0000000000000000 RBX: 00007fc736c3445c RCX: 00007fc736b9f257
[  447.387718][ T6041] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007fffd6f1af20
[  447.387723][ T6041] RBP: 00007fffd6f1af20 R08: 00007fffd6f1bf20 R09: 00000000ffffffff
[  447.387728][ T6041] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fffd6f1bfb0
[  447.387732][ T6041] R13: 00007fc736c3445c R14: 000000000006d302 R15: 00007fffd6f1bff0
[  447.387744][ T6041]  </TASK>
[  447.388809][ T6041] F2FS-fs (loop0): Stopped filesystem due to reason: 3
[  447.804166][T10249] set_capacity_and_notify: 8 callbacks suppressed
[  447.804177][T10249] loop2: detected capacity change from 0 to 40427
[  447.813245][T10249] F2FS-fs (loop2): Small segment_count (9 < 1 * 24)
[  447.822399][T10249] F2FS-fs (loop2): Can't find valid F2FS filesystem in 1th superblock
[  447.901641][T10249] F2FS-fs (loop2): f2fs_recover_fsync_data: recovery fsync data, check_only: 0
[  447.906094][T10247] loop1: detected capacity change from 0 to 40427
[  447.922273][T10249] F2FS-fs (loop2): Try to recover 1th superblock, ret: 0
[  447.925164][T10249] F2FS-fs (loop2): Mounted with checkpoint version = 48b305e5
[  447.937763][T10247] F2FS-fs (loop1): Small segment_count (9 < 1 * 24)
[  447.943456][T10247] F2FS-fs (loop1): Can't find valid F2FS filesystem in 1th superblock
[  447.957407][T10249] bio_check_eod: 43 callbacks suppressed
[  447.957425][T10249] syz.2.1021: attempt to access beyond end of device
[  447.957425][T10249] loop2: rw=2049, sector=53248, nr_sectors = 976 limit=40427
[  447.974767][T10247] F2FS-fs (loop1): f2fs_recover_fsync_data: recovery fsync data, check_only: 0
[  447.978353][T10249] syz.2.1021: attempt to access beyond end of device
[  447.978353][T10249] loop2: rw=8423425, sector=54224, nr_sectors = 8 limit=40427
[  447.980890][T10247] F2FS-fs (loop1): Try to recover 1th superblock, ret: 0
[  447.985582][T10247] F2FS-fs (loop1): Mounted with checkpoint version = 48b305e5
[  447.994825][ T6048] syz-executor: attempt to access beyond end of device
[  447.994825][ T6048] loop2: rw=2049, sector=45096, nr_sectors = 8 limit=40427
[  448.000702][ T6048] CPU: 0 UID: 0 PID: 6048 Comm: syz-executor Not tainted syzkaller #0 PREEMPT(full) 
[  448.000715][ T6048] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
[  448.000720][ T6048] Call Trace:
[  448.000724][ T6048]  <TASK>
[  448.000728][ T6048]  dump_stack_lvl+0xe8/0x150
[  448.000744][ T6048]  f2fs_stop_checkpoint+0x3f6/0x5d0
[  448.000756][ T6048]  f2fs_write_end_io+0x124b/0x1710
[  448.000774][ T6048]  __submit_merged_bio+0x258/0x6a0
[  448.000782][ T6048]  ? rcu_is_watching+0x15/0xb0
[  448.000795][ T6048]  __submit_merged_write_cond+0x3c9/0x4e0
[  448.000807][ T6048]  ? __pfx___submit_merged_write_cond+0x10/0x10
[  448.000825][ T6048]  f2fs_write_data_pages+0x2a27/0x36f0
[  448.000848][ T6048]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  448.000877][ T6048]  ? __pfx_hlock_conflict+0x10/0x10
[  448.000886][ T6048]  ? __bfs+0x153/0x290
[  448.000898][ T6048]  ? __pfx_hlock_conflict+0x10/0x10
[  448.000953][ T6048]  ? lockdep_unlock+0x5d/0xd0
[  448.000963][ T6048]  ? __lock_acquire+0x13e8/0x2cf0
[  448.000982][ T6048]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  448.000992][ T6048]  do_writepages+0x338/0x560
[  448.001007][ T6048]  ? do_raw_spin_unlock+0x4d/0x210
[  448.001017][ T6048]  filemap_fdatawrite+0x1e9/0x2f0
[  448.001029][ T6048]  ? __pfx_filemap_fdatawrite+0x10/0x10
[  448.001055][ T6048]  ? do_raw_spin_unlock+0x4d/0x210
[  448.001064][ T6048]  f2fs_sync_dirty_inodes+0x30e/0x830
[  448.001080][ T6048]  f2fs_write_checkpoint+0xa3d/0x2710
[  448.001103][ T6048]  ? __pfx_f2fs_write_checkpoint+0x10/0x10
[  448.001132][ T6048]  kill_f2fs_super+0x2dd/0x700
[  448.001145][ T6048]  ? __pfx_kill_f2fs_super+0x10/0x10
[  448.001160][ T6048]  ? call_rcu+0x64b/0x8b0
[  448.001166][ T6048]  ? lockdep_hardirqs_on+0x7a/0x110
[  448.001180][ T6048]  deactivate_locked_super+0xbc/0x110
[  448.001191][ T6048]  cleanup_mnt+0x3d3/0x460
[  448.001206][ T6048]  task_work_run+0x1d9/0x270
[  448.001218][ T6048]  ? __pfx_task_work_run+0x10/0x10
[  448.001232][ T6048]  exit_to_user_mode_loop+0x1fa/0x730
[  448.001241][ T6048]  ? rcu_is_watching+0x15/0xb0
[  448.001252][ T6048]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  448.001260][ T6048]  do_syscall_64+0x353/0x580
[  448.001267][ T6048]  ? trace_irq_disable+0x3b/0x140
[  448.001278][ T6048]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  448.001286][ T6048] RIP: 0033:0x7fc5e679f257
[  448.001294][ T6048] Code: a2 c7 05 9c 44 25 00 00 00 00 00 eb 96 e8 e1 12 00 00 90 31 f6 e9 09 00 00 00 66 0f 1f 84 00 00 00 00 00 b8 a6 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 01 c3 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8
[  448.001301][ T6048] RSP: 002b:00007fff49366408 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
[  448.001310][ T6048] RAX: 0000000000000000 RBX: 00007fc5e683445c RCX: 00007fc5e679f257
[  448.001315][ T6048] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007fff493664c0
[  448.001337][ T6048] RBP: 00007fff493664c0 R08: 00007fff493674c0 R09: 00000000ffffffff
[  448.001343][ T6048] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fff49367550
[  448.001347][ T6048] R13: 00007fc5e683445c R14: 000000000006d55c R15: 00007fff49367590
[  448.001360][ T6048]  </TASK>
[  448.001869][ T6048] F2FS-fs (loop2): Stopped filesystem due to reason: 3
[  448.086616][T10251] loop0: detected capacity change from 0 to 40427
[  448.120088][T10256] syz.1.1020: attempt to access beyond end of device
[  448.120088][T10256] loop1: rw=8423425, sector=53352, nr_sectors = 8 limit=40427
[  448.125623][T10247] syz.1.1020: attempt to access beyond end of device
[  448.125623][T10247] loop1: rw=2049, sector=53248, nr_sectors = 104 limit=40427
[  448.140708][T10247] syz.1.1020: attempt to access beyond end of device
[  448.140708][T10247] loop1: rw=2049, sector=53360, nr_sectors = 872 limit=40427
[  448.146393][T10251] F2FS-fs (loop0): Small segment_count (9 < 1 * 24)
[  448.151090][T10251] F2FS-fs (loop0): Can't find valid F2FS filesystem in 1th superblock
[  448.162762][ T6044] syz-executor: attempt to access beyond end of device
[  448.162762][ T6044] loop1: rw=2049, sector=45096, nr_sectors = 8 limit=40427
[  448.194491][ T6044] CPU: 1 UID: 0 PID: 6044 Comm: syz-executor Not tainted syzkaller #0 PREEMPT(full) 
[  448.194505][ T6044] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
[  448.194510][ T6044] Call Trace:
[  448.194514][ T6044]  <TASK>
[  448.194518][ T6044]  dump_stack_lvl+0xe8/0x150
[  448.194535][ T6044]  f2fs_stop_checkpoint+0x3f6/0x5d0
[  448.194548][ T6044]  f2fs_write_end_io+0x124b/0x1710
[  448.194568][ T6044]  __submit_merged_bio+0x258/0x6a0
[  448.194577][ T6044]  ? rcu_is_watching+0x15/0xb0
[  448.194590][ T6044]  __submit_merged_write_cond+0x3c9/0x4e0
[  448.194603][ T6044]  ? __pfx___submit_merged_write_cond+0x10/0x10
[  448.194619][ T6044]  f2fs_write_data_pages+0x2a27/0x36f0
[  448.194629][ T6044]  ? __lock_acquire+0x683/0x2cf0
[  448.194650][ T6044]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  448.194674][ T6044]  ? __pfx_hlock_conflict+0x10/0x10
[  448.194680][ T6044]  ? __bfs+0x153/0x290
[  448.194689][ T6044]  ? __pfx_hlock_conflict+0x10/0x10
[  448.194701][ T6044]  ? lockdep_unlock+0x5d/0xd0
[  448.194709][ T6044]  ? __lock_acquire+0x13e8/0x2cf0
[  448.194726][ T6044]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  448.194735][ T6044]  do_writepages+0x338/0x560
[  448.194750][ T6044]  ? do_raw_spin_unlock+0x4d/0x210
[  448.194760][ T6044]  filemap_fdatawrite+0x1e9/0x2f0
[  448.194772][ T6044]  ? __pfx_filemap_fdatawrite+0x10/0x10
[  448.194796][ T6044]  ? do_raw_spin_unlock+0x4d/0x210
[  448.194804][ T6044]  f2fs_sync_dirty_inodes+0x30e/0x830
[  448.194820][ T6044]  f2fs_write_checkpoint+0xa3d/0x2710
[  448.194841][ T6044]  ? __pfx_f2fs_write_checkpoint+0x10/0x10
[  448.194868][ T6044]  kill_f2fs_super+0x2dd/0x700
[  448.194881][ T6044]  ? __pfx_kill_f2fs_super+0x10/0x10
[  448.194895][ T6044]  ? call_rcu+0x64b/0x8b0
[  448.194928][ T6044]  ? lockdep_hardirqs_on+0x7a/0x110
[  448.194949][ T6044]  deactivate_locked_super+0xbc/0x110
[  448.194967][ T6044]  cleanup_mnt+0x3d3/0x460
[  448.194982][ T6044]  task_work_run+0x1d9/0x270
[  448.195002][ T6044]  ? __pfx_task_work_run+0x10/0x10
[  448.195022][ T6044]  exit_to_user_mode_loop+0x1fa/0x730
[  448.195037][ T6044]  ? rcu_is_watching+0x15/0xb0
[  448.195052][ T6044]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  448.195070][ T6044]  do_syscall_64+0x353/0x580
[  448.195083][ T6044]  ? trace_irq_disable+0x3b/0x140
[  448.195101][ T6044]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  448.195112][ T6044] RIP: 0033:0x7fc4dff9f257
[  448.195124][ T6044] Code: a2 c7 05 9c 44 25 00 00 00 00 00 eb 96 e8 e1 12 00 00 90 31 f6 e9 09 00 00 00 66 0f 1f 84 00 00 00 00 00 b8 a6 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 01 c3 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8
[  448.195134][ T6044] RSP: 002b:00007fff836538d8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
[  448.195144][ T6044] RAX: 0000000000000000 RBX: 00007fc4e003445c RCX: 00007fc4dff9f257
[  448.195151][ T6044] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007fff83653990
[  448.195158][ T6044] RBP: 00007fff83653990 R08: 00007fff83654990 R09: 00000000ffffffff
[  448.195166][ T6044] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fff83654a20
[  448.195173][ T6044] R13: 00007fc4e003445c R14: 000000000006d5ff R15: 00007fff83654a60
[  448.195191][ T6044]  </TASK>
[  448.195197][ T6044] F2FS-fs (loop1): Stopped filesystem due to reason: 3
[  448.272709][T10251] F2FS-fs (loop0): f2fs_recover_fsync_data: recovery fsync data, check_only: 0
[  448.326095][T10251] F2FS-fs (loop0): Try to recover 1th superblock, ret: 0
[  448.328879][T10251] F2FS-fs (loop0): Mounted with checkpoint version = 48b305e5
[  448.342037][T10251] syz.0.1022: attempt to access beyond end of device
[  448.342037][T10251] loop0: rw=2049, sector=53248, nr_sectors = 976 limit=40427
[  448.348465][T10251] syz.0.1022: attempt to access beyond end of device
[  448.348465][T10251] loop0: rw=8423425, sector=54224, nr_sectors = 8 limit=40427
[  448.378783][ T6041] syz-executor: attempt to access beyond end of device
[  448.378783][ T6041] loop0: rw=2049, sector=45096, nr_sectors = 8 limit=40427
[  448.404026][ T6041] CPU: 1 UID: 0 PID: 6041 Comm: syz-executor Not tainted syzkaller #0 PREEMPT(full) 
[  448.404050][ T6041] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
[  448.404057][ T6041] Call Trace:
[  448.404064][ T6041]  <TASK>
[  448.404070][ T6041]  dump_stack_lvl+0xe8/0x150
[  448.404097][ T6041]  f2fs_stop_checkpoint+0x3f6/0x5d0
[  448.404120][ T6041]  f2fs_write_end_io+0x124b/0x1710
[  448.404151][ T6041]  __submit_merged_bio+0x258/0x6a0
[  448.404167][ T6041]  ? rcu_is_watching+0x15/0xb0
[  448.404188][ T6041]  __submit_merged_write_cond+0x3c9/0x4e0
[  448.404209][ T6041]  ? __pfx___submit_merged_write_cond+0x10/0x10
[  448.404239][ T6041]  f2fs_write_data_pages+0x2a27/0x36f0
[  448.404276][ T6041]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  448.404319][ T6041]  ? __pfx_hlock_conflict+0x10/0x10
[  448.404331][ T6041]  ? __bfs+0x153/0x290
[  448.404346][ T6041]  ? __pfx_hlock_conflict+0x10/0x10
[  448.404368][ T6041]  ? lockdep_unlock+0x5d/0xd0
[  448.404383][ T6041]  ? __lock_acquire+0x13e8/0x2cf0
[  448.404413][ T6041]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  448.404430][ T6041]  do_writepages+0x338/0x560
[  448.404454][ T6041]  ? do_raw_spin_unlock+0x4d/0x210
[  448.404470][ T6041]  filemap_fdatawrite+0x1e9/0x2f0
[  448.404489][ T6041]  ? __pfx_filemap_fdatawrite+0x10/0x10
[  448.404532][ T6041]  ? do_raw_spin_unlock+0x4d/0x210
[  448.404548][ T6041]  f2fs_sync_dirty_inodes+0x30e/0x830
[  448.404581][ T6041]  f2fs_write_checkpoint+0xa3d/0x2710
[  448.404618][ T6041]  ? __pfx_f2fs_write_checkpoint+0x10/0x10
[  448.404684][ T6041]  kill_f2fs_super+0x2dd/0x700
[  448.404708][ T6041]  ? __pfx_kill_f2fs_super+0x10/0x10
[  448.404732][ T6041]  ? call_rcu+0x64b/0x8b0
[  448.404744][ T6041]  ? lockdep_hardirqs_on+0x7a/0x110
[  448.404767][ T6041]  deactivate_locked_super+0xbc/0x110
[  448.404787][ T6041]  cleanup_mnt+0x3d3/0x460
[  448.404804][ T6041]  task_work_run+0x1d9/0x270
[  448.404824][ T6041]  ? __pfx_task_work_run+0x10/0x10
[  448.404848][ T6041]  exit_to_user_mode_loop+0x1fa/0x730
[  448.404864][ T6041]  ? rcu_is_watching+0x15/0xb0
[  448.404882][ T6041]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  448.404919][ T6041]  do_syscall_64+0x353/0x580
[  448.404935][ T6041]  ? trace_irq_disable+0x3b/0x140
[  448.404954][ T6041]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  448.404967][ T6041] RIP: 0033:0x7fc736b9f257
[  448.404982][ T6041] Code: a2 c7 05 9c 44 25 00 00 00 00 00 eb 96 e8 e1 12 00 00 90 31 f6 e9 09 00 00 00 66 0f 1f 84 00 00 00 00 00 b8 a6 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 01 c3 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8
[  448.404992][ T6041] RSP: 002b:00007fffd6f1ae68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
[  448.405008][ T6041] RAX: 0000000000000000 RBX: 00007fc736c3445c RCX: 00007fc736b9f257
[  448.405016][ T6041] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007fffd6f1af20
[  448.405022][ T6041] RBP: 00007fffd6f1af20 R08: 00007fffd6f1bf20 R09: 00000000ffffffff
[  448.405031][ T6041] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fffd6f1bfb0
[  448.405038][ T6041] R13: 00007fc736c3445c R14: 000000000006d6d1 R15: 00007fffd6f1bff0
[  448.405057][ T6041]  </TASK>
[  448.405103][ T6041] F2FS-fs (loop0): Stopped filesystem due to reason: 3
[  448.583756][T10260] loop2: detected capacity change from 0 to 40427
[  448.601528][T10260] F2FS-fs (loop2): Small segment_count (9 < 1 * 24)
[  448.623312][T10260] F2FS-fs (loop2): Can't find valid F2FS filesystem in 1th superblock
[  448.693322][T10260] F2FS-fs (loop2): f2fs_recover_fsync_data: recovery fsync data, check_only: 0
[  448.706185][T10260] F2FS-fs (loop2): Try to recover 1th superblock, ret: 0
[  448.710528][T10260] F2FS-fs (loop2): Mounted with checkpoint version = 48b305e5
[  448.741350][ T6048] CPU: 1 UID: 0 PID: 6048 Comm: syz-executor Not tainted syzkaller #0 PREEMPT(full) 
[  448.741376][ T6048] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
[  448.741384][ T6048] Call Trace:
[  448.741390][ T6048]  <TASK>
[  448.741396][ T6048]  dump_stack_lvl+0xe8/0x150
[  448.741422][ T6048]  f2fs_stop_checkpoint+0x3f6/0x5d0
[  448.741446][ T6048]  f2fs_write_end_io+0x124b/0x1710
[  448.741478][ T6048]  __submit_merged_bio+0x258/0x6a0
[  448.741493][ T6048]  ? rcu_is_watching+0x15/0xb0
[  448.741516][ T6048]  __submit_merged_write_cond+0x3c9/0x4e0
[  448.741537][ T6048]  ? __pfx___submit_merged_write_cond+0x10/0x10
[  448.741573][ T6048]  f2fs_write_data_pages+0x2a27/0x36f0
[  448.741591][ T6048]  ? __lock_acquire+0x683/0x2cf0
[  448.741627][ T6048]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  448.741669][ T6048]  ? __pfx_hlock_conflict+0x10/0x10
[  448.741682][ T6048]  ? __bfs+0x153/0x290
[  448.741695][ T6048]  ? __pfx_hlock_conflict+0x10/0x10
[  448.741716][ T6048]  ? lockdep_unlock+0x5d/0xd0
[  448.741729][ T6048]  ? __lock_acquire+0x13e8/0x2cf0
[  448.741760][ T6048]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  448.741778][ T6048]  do_writepages+0x338/0x560
[  448.741802][ T6048]  ? do_raw_spin_unlock+0x4d/0x210
[  448.741820][ T6048]  filemap_fdatawrite+0x1e9/0x2f0
[  448.741840][ T6048]  ? __pfx_filemap_fdatawrite+0x10/0x10
[  448.741884][ T6048]  ? do_raw_spin_unlock+0x4d/0x210
[  448.741930][ T6048]  f2fs_sync_dirty_inodes+0x30e/0x830
[  448.741958][ T6048]  f2fs_write_checkpoint+0xa3d/0x2710
[  448.741996][ T6048]  ? __pfx_f2fs_write_checkpoint+0x10/0x10
[  448.742043][ T6048]  kill_f2fs_super+0x2dd/0x700
[  448.742065][ T6048]  ? __pfx_kill_f2fs_super+0x10/0x10
[  448.742091][ T6048]  ? call_rcu+0x64b/0x8b0
[  448.742101][ T6048]  ? lockdep_hardirqs_on+0x7a/0x110
[  448.742126][ T6048]  deactivate_locked_super+0xbc/0x110
[  448.742146][ T6048]  cleanup_mnt+0x3d3/0x460
[  448.742161][ T6048]  task_work_run+0x1d9/0x270
[  448.742183][ T6048]  ? __pfx_task_work_run+0x10/0x10
[  448.742206][ T6048]  exit_to_user_mode_loop+0x1fa/0x730
[  448.742240][ T6048]  ? rcu_is_watching+0x15/0xb0
[  448.742258][ T6048]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  448.742271][ T6048]  do_syscall_64+0x353/0x580
[  448.742287][ T6048]  ? trace_irq_disable+0x3b/0x140
[  448.742306][ T6048]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  448.742317][ T6048] RIP: 0033:0x7fc5e679f257
[  448.742332][ T6048] Code: a2 c7 05 9c 44 25 00 00 00 00 00 eb 96 e8 e1 12 00 00 90 31 f6 e9 09 00 00 00 66 0f 1f 84 00 00 00 00 00 b8 a6 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 01 c3 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8
[  448.742343][ T6048] RSP: 002b:00007fff49366408 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
[  448.742359][ T6048] RAX: 0000000000000000 RBX: 00007fc5e683445c RCX: 00007fc5e679f257
[  448.742367][ T6048] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007fff493664c0
[  448.742374][ T6048] RBP: 00007fff493664c0 R08: 00007fff493674c0 R09: 00000000ffffffff
[  448.742383][ T6048] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fff49367550
[  448.742390][ T6048] R13: 00007fc5e683445c R14: 000000000006d845 R15: 00007fff49367590
[  448.742409][ T6048]  </TASK>
[  448.759192][ T6048] F2FS-fs (loop2): Stopped filesystem due to reason: 3
[  448.884975][T10262] loop1: detected capacity change from 0 to 40427
[  448.899178][T10262] F2FS-fs (loop1): Small segment_count (9 < 1 * 24)
[  448.902081][T10262] F2FS-fs (loop1): Can't find valid F2FS filesystem in 1th superblock
[  448.999729][T10262] F2FS-fs (loop1): f2fs_recover_fsync_data: recovery fsync data, check_only: 0
[  449.012750][T10262] F2FS-fs (loop1): Try to recover 1th superblock, ret: 0
[  449.015297][T10262] F2FS-fs (loop1): Mounted with checkpoint version = 48b305e5
[  449.052029][ T6044] CPU: 0 UID: 0 PID: 6044 Comm: syz-executor Not tainted syzkaller #0 PREEMPT(full) 
[  449.052050][ T6044] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
[  449.052080][ T6044] Call Trace:
[  449.052087][ T6044]  <TASK>
[  449.052093][ T6044]  dump_stack_lvl+0xe8/0x150
[  449.052116][ T6044]  f2fs_stop_checkpoint+0x3f6/0x5d0
[  449.052137][ T6044]  f2fs_write_end_io+0x124b/0x1710
[  449.052167][ T6044]  __submit_merged_bio+0x258/0x6a0
[  449.052181][ T6044]  ? rcu_is_watching+0x15/0xb0
[  449.052202][ T6044]  __submit_merged_write_cond+0x3c9/0x4e0
[  449.052222][ T6044]  ? __pfx___submit_merged_write_cond+0x10/0x10
[  449.052249][ T6044]  f2fs_write_data_pages+0x2a27/0x36f0
[  449.052267][ T6044]  ? __lock_acquire+0x683/0x2cf0
[  449.052305][ T6044]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  449.052359][ T6044]  ? __pfx_hlock_conflict+0x10/0x10
[  449.052370][ T6044]  ? __bfs+0x153/0x290
[  449.052385][ T6044]  ? __pfx_hlock_conflict+0x10/0x10
[  449.052408][ T6044]  ? lockdep_unlock+0x5d/0xd0
[  449.052421][ T6044]  ? __lock_acquire+0x13e8/0x2cf0
[  449.052454][ T6044]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  449.052471][ T6044]  do_writepages+0x338/0x560
[  449.052495][ T6044]  ? do_raw_spin_unlock+0x4d/0x210
[  449.052512][ T6044]  filemap_fdatawrite+0x1e9/0x2f0
[  449.052530][ T6044]  ? __pfx_filemap_fdatawrite+0x10/0x10
[  449.052573][ T6044]  ? do_raw_spin_unlock+0x4d/0x210
[  449.052588][ T6044]  f2fs_sync_dirty_inodes+0x30e/0x830
[  449.052614][ T6044]  f2fs_write_checkpoint+0xa3d/0x2710
[  449.052650][ T6044]  ? __pfx_f2fs_write_checkpoint+0x10/0x10
[  449.052699][ T6044]  kill_f2fs_super+0x2dd/0x700
[  449.052723][ T6044]  ? __pfx_kill_f2fs_super+0x10/0x10
[  449.052748][ T6044]  ? call_rcu+0x64b/0x8b0
[  449.052759][ T6044]  ? lockdep_hardirqs_on+0x7a/0x110
[  449.052802][ T6044]  deactivate_locked_super+0xbc/0x110
[  449.052824][ T6044]  cleanup_mnt+0x3d3/0x460
[  449.052838][ T6044]  task_work_run+0x1d9/0x270
[  449.052859][ T6044]  ? __pfx_task_work_run+0x10/0x10
[  449.052883][ T6044]  exit_to_user_mode_loop+0x1fa/0x730
[  449.052926][ T6044]  ? rcu_is_watching+0x15/0xb0
[  449.052942][ T6044]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  449.052957][ T6044]  do_syscall_64+0x353/0x580
[  449.052970][ T6044]  ? trace_irq_disable+0x3b/0x140
[  449.052990][ T6044]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  449.053002][ T6044] RIP: 0033:0x7fc4dff9f257
[  449.053015][ T6044] Code: a2 c7 05 9c 44 25 00 00 00 00 00 eb 96 e8 e1 12 00 00 90 31 f6 e9 09 00 00 00 66 0f 1f 84 00 00 00 00 00 b8 a6 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 01 c3 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8
[  449.053025][ T6044] RSP: 002b:00007fff836538d8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
[  449.053040][ T6044] RAX: 0000000000000000 RBX: 00007fc4e003445c RCX: 00007fc4dff9f257
[  449.053049][ T6044] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007fff83653990
[  449.053056][ T6044] RBP: 00007fff83653990 R08: 00007fff83654990 R09: 00000000ffffffff
[  449.053065][ T6044] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fff83654a20
[  449.053073][ T6044] R13: 00007fc4e003445c R14: 000000000006d97c R15: 00007fff83654a60
[  449.053094][ T6044]  </TASK>
[  449.055808][ T6044] F2FS-fs (loop1): Stopped filesystem due to reason: 3
[  449.072757][T10266] loop0: detected capacity change from 0 to 40427
[  449.178616][T10266] F2FS-fs (loop0): Small segment_count (9 < 1 * 24)
[  449.183035][T10266] F2FS-fs (loop0): Can't find valid F2FS filesystem in 1th superblock
[  449.253385][T10266] F2FS-fs (loop0): f2fs_recover_fsync_data: recovery fsync data, check_only: 0
[  449.258878][T10266] F2FS-fs (loop0): Try to recover 1th superblock, ret: 0
[  449.261218][T10266] F2FS-fs (loop0): Mounted with checkpoint version = 48b305e5
[  449.275000][ T6041] CPU: 0 UID: 0 PID: 6041 Comm: syz-executor Not tainted syzkaller #0 PREEMPT(full) 
[  449.275015][ T6041] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
[  449.275020][ T6041] Call Trace:
[  449.275024][ T6041]  <TASK>
[  449.275028][ T6041]  dump_stack_lvl+0xe8/0x150
[  449.275043][ T6041]  f2fs_stop_checkpoint+0x3f6/0x5d0
[  449.275055][ T6041]  f2fs_write_end_io+0x124b/0x1710
[  449.275073][ T6041]  __submit_merged_bio+0x258/0x6a0
[  449.275082][ T6041]  ? rcu_is_watching+0x15/0xb0
[  449.275094][ T6041]  __submit_merged_write_cond+0x3c9/0x4e0
[  449.275106][ T6041]  ? __pfx___submit_merged_write_cond+0x10/0x10
[  449.275123][ T6041]  f2fs_write_data_pages+0x2a27/0x36f0
[  449.275133][ T6041]  ? __lock_acquire+0x683/0x2cf0
[  449.275154][ T6041]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  449.275180][ T6041]  ? __pfx_hlock_conflict+0x10/0x10
[  449.275186][ T6041]  ? __bfs+0x153/0x290
[  449.275194][ T6041]  ? __pfx_hlock_conflict+0x10/0x10
[  449.275207][ T6041]  ? lockdep_unlock+0x5d/0xd0
[  449.275236][ T6041]  ? __lock_acquire+0x13e8/0x2cf0
[  449.275257][ T6041]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  449.275266][ T6041]  do_writepages+0x338/0x560
[  449.275281][ T6041]  ? do_raw_spin_unlock+0x4d/0x210
[  449.275291][ T6041]  filemap_fdatawrite+0x1e9/0x2f0
[  449.275302][ T6041]  ? __pfx_filemap_fdatawrite+0x10/0x10
[  449.275334][ T6041]  ? do_raw_spin_unlock+0x4d/0x210
[  449.275344][ T6041]  f2fs_sync_dirty_inodes+0x30e/0x830
[  449.275360][ T6041]  f2fs_write_checkpoint+0xa3d/0x2710
[  449.275383][ T6041]  ? __pfx_f2fs_write_checkpoint+0x10/0x10
[  449.275414][ T6041]  kill_f2fs_super+0x2dd/0x700
[  449.275427][ T6041]  ? __pfx_kill_f2fs_super+0x10/0x10
[  449.275442][ T6041]  ? call_rcu+0x64b/0x8b0
[  449.275452][ T6041]  ? lockdep_hardirqs_on+0x7a/0x110
[  449.275466][ T6041]  deactivate_locked_super+0xbc/0x110
[  449.275477][ T6041]  cleanup_mnt+0x3d3/0x460
[  449.275487][ T6041]  task_work_run+0x1d9/0x270
[  449.275499][ T6041]  ? __pfx_task_work_run+0x10/0x10
[  449.275513][ T6041]  exit_to_user_mode_loop+0x1fa/0x730
[  449.275522][ T6041]  ? rcu_is_watching+0x15/0xb0
[  449.275532][ T6041]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  449.275540][ T6041]  do_syscall_64+0x353/0x580
[  449.275548][ T6041]  ? trace_irq_disable+0x3b/0x140
[  449.275560][ T6041]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  449.275567][ T6041] RIP: 0033:0x7fc736b9f257
[  449.275577][ T6041] Code: a2 c7 05 9c 44 25 00 00 00 00 00 eb 96 e8 e1 12 00 00 90 31 f6 e9 09 00 00 00 66 0f 1f 84 00 00 00 00 00 b8 a6 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 01 c3 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8
[  449.275586][ T6041] RSP: 002b:00007fffd6f1ae68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
[  449.275599][ T6041] RAX: 0000000000000000 RBX: 00007fc736c3445c RCX: 00007fc736b9f257
[  449.275607][ T6041] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007fffd6f1af20
[  449.275613][ T6041] RBP: 00007fffd6f1af20 R08: 00007fffd6f1bf20 R09: 00000000ffffffff
[  449.275620][ T6041] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fffd6f1bfb0
[  449.275626][ T6041] R13: 00007fc736c3445c R14: 000000000006d845 R15: 00007fffd6f1bff0
[  449.275646][ T6041]  </TASK>
[  449.277356][ T6041] F2FS-fs (loop0): Stopped filesystem due to reason: 3
[  449.376751][T10270] loop2: detected capacity change from 0 to 40427
[  449.396868][T10270] F2FS-fs (loop2): Small segment_count (9 < 1 * 24)
[  449.402416][T10270] F2FS-fs (loop2): Can't find valid F2FS filesystem in 1th superblock
[  449.478090][T10270] F2FS-fs (loop2): f2fs_recover_fsync_data: recovery fsync data, check_only: 0
[  449.484472][T10270] F2FS-fs (loop2): Try to recover 1th superblock, ret: 0
[  449.486805][T10270] F2FS-fs (loop2): Mounted with checkpoint version = 48b305e5
[  449.502584][ T6048] CPU: 1 UID: 0 PID: 6048 Comm: syz-executor Not tainted syzkaller #0 PREEMPT(full) 
[  449.502601][ T6048] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
[  449.502606][ T6048] Call Trace:
[  449.502611][ T6048]  <TASK>
[  449.502615][ T6048]  dump_stack_lvl+0xe8/0x150
[  449.502632][ T6048]  f2fs_stop_checkpoint+0x3f6/0x5d0
[  449.502645][ T6048]  f2fs_write_end_io+0x124b/0x1710
[  449.502664][ T6048]  __submit_merged_bio+0x258/0x6a0
[  449.502672][ T6048]  ? rcu_is_watching+0x15/0xb0
[  449.502686][ T6048]  __submit_merged_write_cond+0x3c9/0x4e0
[  449.502698][ T6048]  ? __pfx___submit_merged_write_cond+0x10/0x10
[  449.502716][ T6048]  f2fs_write_data_pages+0x2a27/0x36f0
[  449.502739][ T6048]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  449.502765][ T6048]  ? __pfx_hlock_conflict+0x10/0x10
[  449.502772][ T6048]  ? __bfs+0x153/0x290
[  449.502780][ T6048]  ? __pfx_hlock_conflict+0x10/0x10
[  449.502793][ T6048]  ? lockdep_unlock+0x5d/0xd0
[  449.502801][ T6048]  ? __lock_acquire+0x13e8/0x2cf0
[  449.502821][ T6048]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  449.502831][ T6048]  do_writepages+0x338/0x560
[  449.502845][ T6048]  ? do_raw_spin_unlock+0x4d/0x210
[  449.502855][ T6048]  filemap_fdatawrite+0x1e9/0x2f0
[  449.502868][ T6048]  ? __pfx_filemap_fdatawrite+0x10/0x10
[  449.502928][ T6048]  ? do_raw_spin_unlock+0x4d/0x210
[  449.502940][ T6048]  f2fs_sync_dirty_inodes+0x30e/0x830
[  449.502956][ T6048]  f2fs_write_checkpoint+0xa3d/0x2710
[  449.502979][ T6048]  ? __pfx_f2fs_write_checkpoint+0x10/0x10
[  449.503008][ T6048]  kill_f2fs_super+0x2dd/0x700
[  449.503022][ T6048]  ? __pfx_kill_f2fs_super+0x10/0x10
[  449.503036][ T6048]  ? call_rcu+0x64b/0x8b0
[  449.503048][ T6048]  ? lockdep_hardirqs_on+0x7a/0x110
[  449.503063][ T6048]  deactivate_locked_super+0xbc/0x110
[  449.503076][ T6048]  cleanup_mnt+0x3d3/0x460
[  449.503086][ T6048]  task_work_run+0x1d9/0x270
[  449.503099][ T6048]  ? __pfx_task_work_run+0x10/0x10
[  449.503113][ T6048]  exit_to_user_mode_loop+0x1fa/0x730
[  449.503122][ T6048]  ? rcu_is_watching+0x15/0xb0
[  449.503133][ T6048]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  449.503141][ T6048]  do_syscall_64+0x353/0x580
[  449.503149][ T6048]  ? trace_irq_disable+0x3b/0x140
[  449.503162][ T6048]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  449.503169][ T6048] RIP: 0033:0x7fc5e679f257
[  449.503178][ T6048] Code: a2 c7 05 9c 44 25 00 00 00 00 00 eb 96 e8 e1 12 00 00 90 31 f6 e9 09 00 00 00 66 0f 1f 84 00 00 00 00 00 b8 a6 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 01 c3 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8
[  449.503184][ T6048] RSP: 002b:00007fff49366408 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
[  449.503194][ T6048] RAX: 0000000000000000 RBX: 00007fc5e683445c RCX: 00007fc5e679f257
[  449.503199][ T6048] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007fff493664c0
[  449.503204][ T6048] RBP: 00007fff493664c0 R08: 00007fff493674c0 R09: 00000000ffffffff
[  449.503209][ T6048] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fff49367550
[  449.503213][ T6048] R13: 00007fc5e683445c R14: 000000000006db3f R15: 00007fff49367590
[  449.503225][ T6048]  </TASK>
[  449.503229][ T6048] F2FS-fs (loop2): Stopped filesystem due to reason: 3
[  449.645567][T10274] loop1: detected capacity change from 0 to 40427
[  449.649489][T10274] F2FS-fs (loop1): Small segment_count (9 < 1 * 24)
[  449.653951][T10274] F2FS-fs (loop1): Can't find valid F2FS filesystem in 1th superblock
[  449.697713][T10274] F2FS-fs (loop1): f2fs_recover_fsync_data: recovery fsync data, check_only: 0
[  449.730261][T10274] F2FS-fs (loop1): Try to recover 1th superblock, ret: 0
[  449.733411][T10274] F2FS-fs (loop1): Mounted with checkpoint version = 48b305e5
[  449.738482][   T34] kauditd_printk_skb: 25 callbacks suppressed
[  449.738492][   T34] audit: type=1800 audit(1785886830.154:2018): pid=10274 uid=0 auid=4294967295 ses=4294967295 subj=unconfined op=collect_data cause=failed(directio) comm="syz.1.1027" name="file1" dev="loop1" ino=10 res=0 errno=0
[  449.757270][   T34] audit: type=1800 audit(1785886830.154:2019): pid=10274 uid=0 auid=4294967295 ses=4294967295 subj=unconfined op=collect_data cause=failed(directio) comm="syz.1.1027" name="file1" dev="loop1" ino=10 res=0 errno=0
[  449.769972][ T6044] CPU: 0 UID: 0 PID: 6044 Comm: syz-executor Not tainted syzkaller #0 PREEMPT(full) 
[  449.769987][ T6044] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
[  449.769992][ T6044] Call Trace:
[  449.769996][ T6044]  <TASK>
[  449.770000][ T6044]  dump_stack_lvl+0xe8/0x150
[  449.770015][ T6044]  f2fs_stop_checkpoint+0x3f6/0x5d0
[  449.770028][ T6044]  f2fs_write_end_io+0x124b/0x1710
[  449.770044][ T6044]  __submit_merged_bio+0x258/0x6a0
[  449.770052][ T6044]  ? rcu_is_watching+0x15/0xb0
[  449.770065][ T6044]  __submit_merged_write_cond+0x3c9/0x4e0
[  449.770076][ T6044]  ? __pfx___submit_merged_write_cond+0x10/0x10
[  449.770092][ T6044]  f2fs_write_data_pages+0x2a27/0x36f0
[  449.770113][ T6044]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  449.770137][ T6044]  ? __pfx_hlock_conflict+0x10/0x10
[  449.770143][ T6044]  ? __bfs+0x153/0x290
[  449.770151][ T6044]  ? __pfx_hlock_conflict+0x10/0x10
[  449.770163][ T6044]  ? lockdep_unlock+0x5d/0xd0
[  449.770171][ T6044]  ? __lock_acquire+0x13e8/0x2cf0
[  449.770188][ T6044]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  449.770198][ T6044]  do_writepages+0x338/0x560
[  449.770211][ T6044]  ? do_raw_spin_unlock+0x4d/0x210
[  449.770221][ T6044]  filemap_fdatawrite+0x1e9/0x2f0
[  449.770232][ T6044]  ? __pfx_filemap_fdatawrite+0x10/0x10
[  449.770256][ T6044]  ? do_raw_spin_unlock+0x4d/0x210
[  449.770264][ T6044]  f2fs_sync_dirty_inodes+0x30e/0x830
[  449.770279][ T6044]  f2fs_write_checkpoint+0xa3d/0x2710
[  449.770300][ T6044]  ? __pfx_f2fs_write_checkpoint+0x10/0x10
[  449.770350][ T6044]  kill_f2fs_super+0x2dd/0x700
[  449.770366][ T6044]  ? __pfx_kill_f2fs_super+0x10/0x10
[  449.770379][ T6044]  ? call_rcu+0x64b/0x8b0
[  449.770386][ T6044]  ? lockdep_hardirqs_on+0x7a/0x110
[  449.770399][ T6044]  deactivate_locked_super+0xbc/0x110
[  449.770410][ T6044]  cleanup_mnt+0x3d3/0x460
[  449.770420][ T6044]  task_work_run+0x1d9/0x270
[  449.770432][ T6044]  ? __pfx_task_work_run+0x10/0x10
[  449.770445][ T6044]  exit_to_user_mode_loop+0x1fa/0x730
[  449.770455][ T6044]  ? rcu_is_watching+0x15/0xb0
[  449.770465][ T6044]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  449.770472][ T6044]  do_syscall_64+0x353/0x580
[  449.770480][ T6044]  ? trace_irq_disable+0x3b/0x140
[  449.770491][ T6044]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  449.770498][ T6044] RIP: 0033:0x7fc4dff9f257
[  449.770507][ T6044] Code: a2 c7 05 9c 44 25 00 00 00 00 00 eb 96 e8 e1 12 00 00 90 31 f6 e9 09 00 00 00 66 0f 1f 84 00 00 00 00 00 b8 a6 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 01 c3 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8
[  449.770513][ T6044] RSP: 002b:00007fff836538d8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
[  449.770522][ T6044] RAX: 0000000000000000 RBX: 00007fc4e003445c RCX: 00007fc4dff9f257
[  449.770528][ T6044] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007fff83653990
[  449.770532][ T6044] RBP: 00007fff83653990 R08: 00007fff83654990 R09: 00000000ffffffff
[  449.770537][ T6044] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fff83654a20
[  449.770542][ T6044] R13: 00007fc4e003445c R14: 000000000006dc3e R15: 00007fff83654a60
[  449.770553][ T6044]  </TASK>
[  449.770834][ T6044] F2FS-fs (loop1): Stopped filesystem due to reason: 3
[  449.819669][T10278] loop0: detected capacity change from 0 to 40427
[  449.878973][T10278] F2FS-fs (loop0): Small segment_count (9 < 1 * 24)
[  449.884907][T10278] F2FS-fs (loop0): Can't find valid F2FS filesystem in 1th superblock
[  449.913753][T10278] F2FS-fs (loop0): f2fs_recover_fsync_data: recovery fsync data, check_only: 0
[  449.918610][T10278] F2FS-fs (loop0): Try to recover 1th superblock, ret: 0
[  449.921594][T10278] F2FS-fs (loop0): Mounted with checkpoint version = 48b305e5
[  449.926174][   T34] audit: type=1800 audit(1785886830.344:2020): pid=10278 uid=0 auid=4294967295 ses=4294967295 subj=unconfined op=collect_data cause=failed(directio) comm="syz.0.1028" name="file1" dev="loop0" ino=10 res=0 errno=0
[  449.937849][   T34] audit: type=1800 audit(1785886830.354:2021): pid=10278 uid=0 auid=4294967295 ses=4294967295 subj=unconfined op=collect_data cause=failed(directio) comm="syz.0.1028" name="file1" dev="loop0" ino=10 res=0 errno=0
[  449.961233][ T6041] CPU: 1 UID: 0 PID: 6041 Comm: syz-executor Not tainted syzkaller #0 PREEMPT(full) 
[  449.961249][ T6041] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
[  449.961254][ T6041] Call Trace:
[  449.961258][ T6041]  <TASK>
[  449.961262][ T6041]  dump_stack_lvl+0xe8/0x150
[  449.961280][ T6041]  f2fs_stop_checkpoint+0x3f6/0x5d0
[  449.961298][ T6041]  f2fs_write_end_io+0x124b/0x1710
[  449.961322][ T6041]  __submit_merged_bio+0x258/0x6a0
[  449.961335][ T6041]  ? rcu_is_watching+0x15/0xb0
[  449.961354][ T6041]  __submit_merged_write_cond+0x3c9/0x4e0
[  449.961366][ T6041]  ? __pfx___submit_merged_write_cond+0x10/0x10
[  449.961382][ T6041]  f2fs_write_data_pages+0x2a27/0x36f0
[  449.961403][ T6041]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  449.961427][ T6041]  ? __pfx_hlock_conflict+0x10/0x10
[  449.961434][ T6041]  ? __bfs+0x153/0x290
[  449.961442][ T6041]  ? __pfx_hlock_conflict+0x10/0x10
[  449.961454][ T6041]  ? lockdep_unlock+0x5d/0xd0
[  449.961462][ T6041]  ? __lock_acquire+0x13e8/0x2cf0
[  449.961480][ T6041]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  449.961490][ T6041]  do_writepages+0x338/0x560
[  449.961504][ T6041]  ? do_raw_spin_unlock+0x4d/0x210
[  449.961513][ T6041]  filemap_fdatawrite+0x1e9/0x2f0
[  449.961525][ T6041]  ? __pfx_filemap_fdatawrite+0x10/0x10
[  449.961551][ T6041]  ? do_raw_spin_unlock+0x4d/0x210
[  449.961560][ T6041]  f2fs_sync_dirty_inodes+0x30e/0x830
[  449.961575][ T6041]  f2fs_write_checkpoint+0xa3d/0x2710
[  449.961596][ T6041]  ? __pfx_f2fs_write_checkpoint+0x10/0x10
2026/08/04 23:40:30 executed programs: 1020
[  449.961623][ T6041]  kill_f2fs_super+0x2dd/0x700
[  449.961635][ T6041]  ? __pfx_kill_f2fs_super+0x10/0x10
[  449.961649][ T6041]  ? call_rcu+0x64b/0x8b0
[  449.961655][ T6041]  ? lockdep_hardirqs_on+0x7a/0x110
[  449.961669][ T6041]  deactivate_locked_super+0xbc/0x110
[  449.961681][ T6041]  cleanup_mnt+0x3d3/0x460
[  449.961691][ T6041]  task_work_run+0x1d9/0x270
[  449.961704][ T6041]  ? __pfx_task_work_run+0x10/0x10
[  449.961717][ T6041]  exit_to_user_mode_loop+0x1fa/0x730
[  449.961727][ T6041]  ? rcu_is_watching+0x15/0xb0
[  449.961737][ T6041]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  449.961745][ T6041]  do_syscall_64+0x353/0x580
[  449.961754][ T6041]  ? trace_irq_disable+0x3b/0x140
[  449.961766][ T6041]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  449.961773][ T6041] RIP: 0033:0x7fc736b9f257
[  449.961781][ T6041] Code: a2 c7 05 9c 44 25 00 00 00 00 00 eb 96 e8 e1 12 00 00 90 31 f6 e9 09 00 00 00 66 0f 1f 84 00 00 00 00 00 b8 a6 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 01 c3 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8
[  449.961788][ T6041] RSP: 002b:00007fffd6f1ae68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
[  449.961798][ T6041] RAX: 0000000000000000 RBX: 00007fc736c3445c RCX: 00007fc736b9f257
[  449.961803][ T6041] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007fffd6f1af20
[  449.961807][ T6041] RBP: 00007fffd6f1af20 R08: 00007fffd6f1bf20 R09: 00000000ffffffff
[  449.961811][ T6041] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fffd6f1bfb0
[  449.961816][ T6041] R13: 00007fc736c3445c R14: 000000000006dd0e R15: 00007fffd6f1bff0
[  449.961827][ T6041]  </TASK>
[  449.961830][ T6041] F2FS-fs (loop0): Stopped filesystem due to reason: 3
[  450.156228][T10284] loop2: detected capacity change from 0 to 40427
[  450.161160][T10284] F2FS-fs (loop2): Small segment_count (9 < 1 * 24)
[  450.166401][T10284] F2FS-fs (loop2): Can't find valid F2FS filesystem in 1th superblock
[  450.212808][T10284] F2FS-fs (loop2): f2fs_recover_fsync_data: recovery fsync data, check_only: 0
[  450.218479][T10284] F2FS-fs (loop2): Try to recover 1th superblock, ret: 0
[  450.221032][T10284] F2FS-fs (loop2): Mounted with checkpoint version = 48b305e5
[  450.226117][   T34] audit: type=1800 audit(1785886830.644:2022): pid=10284 uid=0 auid=4294967295 ses=4294967295 subj=unconfined op=collect_data cause=failed(directio) comm="syz.2.1029" name="file1" dev="loop2" ino=10 res=0 errno=0
[  450.241637][ T6048] CPU: 1 UID: 0 PID: 6048 Comm: syz-executor Not tainted syzkaller #0 PREEMPT(full) 
[  450.241662][ T6048] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
[  450.241670][ T6048] Call Trace:
[  450.241677][ T6048]  <TASK>
[  450.241683][ T6048]  dump_stack_lvl+0xe8/0x150
[  450.241708][ T6048]  f2fs_stop_checkpoint+0x3f6/0x5d0
[  450.241729][ T6048]  f2fs_write_end_io+0x124b/0x1710
[  450.241760][ T6048]  __submit_merged_bio+0x258/0x6a0
[  450.241775][ T6048]  ? rcu_is_watching+0x15/0xb0
[  450.241797][ T6048]  __submit_merged_write_cond+0x3c9/0x4e0
[  450.241819][ T6048]  ? __pfx___submit_merged_write_cond+0x10/0x10
[  450.241849][ T6048]  f2fs_write_data_pages+0x2a27/0x36f0
[  450.241937][ T6048]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  450.241983][ T6048]  ? __pfx_hlock_conflict+0x10/0x10
[  450.241994][ T6048]  ? __bfs+0x153/0x290
[  450.242008][ T6048]  ? __pfx_hlock_conflict+0x10/0x10
[  450.242037][ T6048]  ? lockdep_unlock+0x5d/0xd0
[  450.242051][ T6048]  ? __lock_acquire+0x13e8/0x2cf0
[  450.242084][ T6048]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  450.242101][ T6048]  do_writepages+0x338/0x560
[  450.242124][ T6048]  ? do_raw_spin_unlock+0x4d/0x210
[  450.242140][ T6048]  filemap_fdatawrite+0x1e9/0x2f0
[  450.242160][ T6048]  ? __pfx_filemap_fdatawrite+0x10/0x10
[  450.242204][ T6048]  ? do_raw_spin_unlock+0x4d/0x210
[  450.242219][ T6048]  f2fs_sync_dirty_inodes+0x30e/0x830
[  450.242247][ T6048]  f2fs_write_checkpoint+0xa3d/0x2710
[  450.242284][ T6048]  ? __pfx_f2fs_write_checkpoint+0x10/0x10
[  450.242335][ T6048]  kill_f2fs_super+0x2dd/0x700
[  450.242358][ T6048]  ? __pfx_kill_f2fs_super+0x10/0x10
[  450.242382][ T6048]  ? call_rcu+0x64b/0x8b0
[  450.242393][ T6048]  ? lockdep_hardirqs_on+0x7a/0x110
[  450.242416][ T6048]  deactivate_locked_super+0xbc/0x110
[  450.242435][ T6048]  cleanup_mnt+0x3d3/0x460
[  450.242452][ T6048]  task_work_run+0x1d9/0x270
[  450.242473][ T6048]  ? __pfx_task_work_run+0x10/0x10
[  450.242496][ T6048]  exit_to_user_mode_loop+0x1fa/0x730
[  450.242512][ T6048]  ? rcu_is_watching+0x15/0xb0
[  450.242529][ T6048]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  450.242542][ T6048]  do_syscall_64+0x353/0x580
[  450.242556][ T6048]  ? trace_irq_disable+0x3b/0x140
[  450.242575][ T6048]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  450.242587][ T6048] RIP: 0033:0x7fc5e679f257
[  450.242600][ T6048] Code: a2 c7 05 9c 44 25 00 00 00 00 00 eb 96 e8 e1 12 00 00 90 31 f6 e9 09 00 00 00 66 0f 1f 84 00 00 00 00 00 b8 a6 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 01 c3 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8
[  450.242611][ T6048] RSP: 002b:00007fff49366408 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
[  450.242625][ T6048] RAX: 0000000000000000 RBX: 00007fc5e683445c RCX: 00007fc5e679f257
[  450.242633][ T6048] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007fff493664c0
[  450.242641][ T6048] RBP: 00007fff493664c0 R08: 00007fff493674c0 R09: 00000000ffffffff
[  450.242648][ T6048] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fff49367550
[  450.242656][ T6048] R13: 00007fc5e683445c R14: 000000000006de25 R15: 00007fff49367590
[  450.242675][ T6048]  </TASK>
[  450.245016][ T6048] F2FS-fs (loop2): Stopped filesystem due to reason: 3
[  450.301838][   T34] audit: type=1800 audit(1785886830.644:2023): pid=10284 uid=0 auid=4294967295 ses=4294967295 subj=unconfined op=collect_data cause=failed(directio) comm="syz.2.1029" name="file1" dev="loop2" ino=10 res=0 errno=0
[  450.496254][T10290] F2FS-fs (loop1): Small segment_count (9 < 1 * 24)
[  450.503494][T10290] F2FS-fs (loop1): Can't find valid F2FS filesystem in 1th superblock
[  450.548969][T10288] F2FS-fs (loop0): Small segment_count (9 < 1 * 24)
[  450.551687][T10288] F2FS-fs (loop0): Can't find valid F2FS filesystem in 1th superblock
[  450.572678][T10290] F2FS-fs (loop1): f2fs_recover_fsync_data: recovery fsync data, check_only: 0
[  450.585857][T10290] F2FS-fs (loop1): Try to recover 1th superblock, ret: 0
[  450.591266][T10290] F2FS-fs (loop1): Mounted with checkpoint version = 48b305e5
[  450.600649][   T34] audit: type=1800 audit(1785886831.024:2024): pid=10290 uid=0 auid=4294967295 ses=4294967295 subj=unconfined op=collect_data cause=failed(directio) comm="syz.1.1030" name="file1" dev="loop1" ino=10 res=0 errno=0
[  450.617522][   T34] audit: type=1800 audit(1785886831.024:2025): pid=10290 uid=0 auid=4294967295 ses=4294967295 subj=unconfined op=collect_data cause=failed(directio) comm="syz.1.1030" name="file1" dev="loop1" ino=10 res=0 errno=0
[  450.629352][T10288] F2FS-fs (loop0): f2fs_recover_fsync_data: recovery fsync data, check_only: 0
[  450.629793][ T6044] CPU: 1 UID: 0 PID: 6044 Comm: syz-executor Not tainted syzkaller #0 PREEMPT(full) 
[  450.629808][ T6044] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
[  450.629813][ T6044] Call Trace:
[  450.629817][ T6044]  <TASK>
[  450.629821][ T6044]  dump_stack_lvl+0xe8/0x150
[  450.629838][ T6044]  f2fs_stop_checkpoint+0x3f6/0x5d0
[  450.629851][ T6044]  f2fs_write_end_io+0x124b/0x1710
[  450.629902][ T6044]  __submit_merged_bio+0x258/0x6a0
[  450.629917][ T6044]  ? rcu_is_watching+0x15/0xb0
[  450.629936][ T6044]  __submit_merged_write_cond+0x3c9/0x4e0
[  450.629948][ T6044]  ? __pfx___submit_merged_write_cond+0x10/0x10
[  450.629963][ T6044]  f2fs_write_data_pages+0x2a27/0x36f0
[  450.629973][ T6044]  ? __lock_acquire+0x683/0x2cf0
[  450.629994][ T6044]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  450.630018][ T6044]  ? __pfx_hlock_conflict+0x10/0x10
[  450.630025][ T6044]  ? __bfs+0x153/0x290
[  450.630038][ T6044]  ? __pfx_hlock_conflict+0x10/0x10
[  450.630051][ T6044]  ? lockdep_unlock+0x5d/0xd0
[  450.630058][ T6044]  ? __lock_acquire+0x13e8/0x2cf0
[  450.630076][ T6044]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  450.630086][ T6044]  do_writepages+0x338/0x560
[  450.630100][ T6044]  ? do_raw_spin_unlock+0x4d/0x210
[  450.630110][ T6044]  filemap_fdatawrite+0x1e9/0x2f0
[  450.630121][ T6044]  ? __pfx_filemap_fdatawrite+0x10/0x10
[  450.630145][ T6044]  ? do_raw_spin_unlock+0x4d/0x210
[  450.630154][ T6044]  f2fs_sync_dirty_inodes+0x30e/0x830
[  450.630170][ T6044]  f2fs_write_checkpoint+0xa3d/0x2710
[  450.630190][ T6044]  ? __pfx_f2fs_write_checkpoint+0x10/0x10
[  450.630216][ T6044]  kill_f2fs_super+0x2dd/0x700
[  450.630229][ T6044]  ? __pfx_kill_f2fs_super+0x10/0x10
[  450.630243][ T6044]  ? call_rcu+0x64b/0x8b0
[  450.630249][ T6044]  ? lockdep_hardirqs_on+0x7a/0x110
[  450.630263][ T6044]  deactivate_locked_super+0xbc/0x110
[  450.630274][ T6044]  cleanup_mnt+0x3d3/0x460
[  450.630284][ T6044]  task_work_run+0x1d9/0x270
[  450.630297][ T6044]  ? __pfx_task_work_run+0x10/0x10
[  450.630310][ T6044]  exit_to_user_mode_loop+0x1fa/0x730
[  450.630320][ T6044]  ? rcu_is_watching+0x15/0xb0
[  450.630330][ T6044]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  450.630338][ T6044]  do_syscall_64+0x353/0x580
[  450.630346][ T6044]  ? trace_irq_disable+0x3b/0x140
[  450.630357][ T6044]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  450.630364][ T6044] RIP: 0033:0x7fc4dff9f257
[  450.630373][ T6044] Code: a2 c7 05 9c 44 25 00 00 00 00 00 eb 96 e8 e1 12 00 00 90 31 f6 e9 09 00 00 00 66 0f 1f 84 00 00 00 00 00 b8 a6 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 01 c3 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8
[  450.630383][ T6044] RSP: 002b:00007fff836538d8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
[  450.630396][ T6044] RAX: 0000000000000000 RBX: 00007fc4e003445c RCX: 00007fc4dff9f257
[  450.630403][ T6044] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007fff83653990
[  450.630411][ T6044] RBP: 00007fff83653990 R08: 00007fff83654990 R09: 00000000ffffffff
[  450.630419][ T6044] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fff83654a20
[  450.630426][ T6044] R13: 00007fc4e003445c R14: 000000000006df94 R15: 00007fff83654a60
[  450.630445][ T6044]  </TASK>
[  450.630451][ T6044] F2FS-fs (loop1): Stopped filesystem due to reason: 3
[  450.640828][T10288] F2FS-fs (loop0): Try to recover 1th superblock, ret: 0
[  450.763322][T10288] F2FS-fs (loop0): Mounted with checkpoint version = 48b305e5
[  450.769156][   T34] audit: type=1800 audit(1785886831.184:2026): pid=10288 uid=0 auid=4294967295 ses=4294967295 subj=unconfined op=collect_data cause=failed(directio) comm="syz.0.1031" name="file1" dev="loop0" ino=10 res=0 errno=0
[  450.793842][   T34] audit: type=1800 audit(1785886831.184:2027): pid=10288 uid=0 auid=4294967295 ses=4294967295 subj=unconfined op=collect_data cause=failed(directio) comm="syz.0.1031" name="file1" dev="loop0" ino=10 res=0 errno=0
[  450.804997][ T6041] CPU: 1 UID: 0 PID: 6041 Comm: syz-executor Not tainted syzkaller #0 PREEMPT(full) 
[  450.805012][ T6041] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
[  450.805017][ T6041] Call Trace:
[  450.805022][ T6041]  <TASK>
[  450.805032][ T6041]  dump_stack_lvl+0xe8/0x150
[  450.805049][ T6041]  f2fs_stop_checkpoint+0x3f6/0x5d0
[  450.805063][ T6041]  f2fs_write_end_io+0x124b/0x1710
[  450.805080][ T6041]  __submit_merged_bio+0x258/0x6a0
[  450.805089][ T6041]  ? rcu_is_watching+0x15/0xb0
[  450.805102][ T6041]  __submit_merged_write_cond+0x3c9/0x4e0
[  450.805113][ T6041]  ? __pfx___submit_merged_write_cond+0x10/0x10
[  450.805149][ T6041]  f2fs_write_data_pages+0x2a27/0x36f0
[  450.805161][ T6041]  ? __lock_acquire+0x683/0x2cf0
[  450.805182][ T6041]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  450.805207][ T6041]  ? __pfx_hlock_conflict+0x10/0x10
[  450.805214][ T6041]  ? __bfs+0x153/0x290
[  450.805222][ T6041]  ? __pfx_hlock_conflict+0x10/0x10
[  450.805235][ T6041]  ? lockdep_unlock+0x5d/0xd0
[  450.805243][ T6041]  ? __lock_acquire+0x13e8/0x2cf0
[  450.805260][ T6041]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  450.805271][ T6041]  do_writepages+0x338/0x560
[  450.805285][ T6041]  ? do_raw_spin_unlock+0x4d/0x210
[  450.805295][ T6041]  filemap_fdatawrite+0x1e9/0x2f0
[  450.805306][ T6041]  ? __pfx_filemap_fdatawrite+0x10/0x10
[  450.805331][ T6041]  ? do_raw_spin_unlock+0x4d/0x210
[  450.805340][ T6041]  f2fs_sync_dirty_inodes+0x30e/0x830
[  450.805355][ T6041]  f2fs_write_checkpoint+0xa3d/0x2710
[  450.805376][ T6041]  ? __pfx_f2fs_write_checkpoint+0x10/0x10
[  450.805404][ T6041]  kill_f2fs_super+0x2dd/0x700
[  450.805417][ T6041]  ? __pfx_kill_f2fs_super+0x10/0x10
[  450.805431][ T6041]  ? call_rcu+0x64b/0x8b0
[  450.805437][ T6041]  ? lockdep_hardirqs_on+0x7a/0x110
[  450.805454][ T6041]  deactivate_locked_super+0xbc/0x110
[  450.805467][ T6041]  cleanup_mnt+0x3d3/0x460
[  450.805476][ T6041]  task_work_run+0x1d9/0x270
[  450.805489][ T6041]  ? __pfx_task_work_run+0x10/0x10
[  450.805503][ T6041]  exit_to_user_mode_loop+0x1fa/0x730
[  450.805513][ T6041]  ? rcu_is_watching+0x15/0xb0
[  450.805524][ T6041]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  450.805534][ T6041]  do_syscall_64+0x353/0x580
[  450.805543][ T6041]  ? trace_irq_disable+0x3b/0x140
[  450.805554][ T6041]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  450.805561][ T6041] RIP: 0033:0x7fc736b9f257
[  450.805570][ T6041] Code: a2 c7 05 9c 44 25 00 00 00 00 00 eb 96 e8 e1 12 00 00 90 31 f6 e9 09 00 00 00 66 0f 1f 84 00 00 00 00 00 b8 a6 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 01 c3 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8
[  450.805576][ T6041] RSP: 002b:00007fffd6f1ae68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
[  450.805585][ T6041] RAX: 0000000000000000 RBX: 00007fc736c3445c RCX: 00007fc736b9f257
[  450.805590][ T6041] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007fffd6f1af20
[  450.805594][ T6041] RBP: 00007fffd6f1af20 R08: 00007fffd6f1bf20 R09: 00000000ffffffff
[  450.805599][ T6041] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fffd6f1bfb0
[  450.805604][ T6041] R13: 00007fc736c3445c R14: 000000000006e04e R15: 00007fffd6f1bff0
[  450.805615][ T6041]  </TASK>
[  450.806045][ T6041] F2FS-fs (loop0): Stopped filesystem due to reason: 3
[  450.854647][T10296] F2FS-fs (loop2): Small segment_count (9 < 1 * 24)
[  450.942344][T10296] F2FS-fs (loop2): Can't find valid F2FS filesystem in 1th superblock
[  450.992507][T10296] F2FS-fs (loop2): f2fs_recover_fsync_data: recovery fsync data, check_only: 0
[  450.998598][T10296] F2FS-fs (loop2): Try to recover 1th superblock, ret: 0
[  451.002989][T10296] F2FS-fs (loop2): Mounted with checkpoint version = 48b305e5
[  451.027243][ T6048] CPU: 1 UID: 0 PID: 6048 Comm: syz-executor Not tainted syzkaller #0 PREEMPT(full) 
[  451.027261][ T6048] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
[  451.027266][ T6048] Call Trace:
[  451.027271][ T6048]  <TASK>
[  451.027275][ T6048]  dump_stack_lvl+0xe8/0x150
[  451.027293][ T6048]  f2fs_stop_checkpoint+0x3f6/0x5d0
[  451.027306][ T6048]  f2fs_write_end_io+0x124b/0x1710
[  451.027324][ T6048]  __submit_merged_bio+0x258/0x6a0
[  451.027332][ T6048]  ? rcu_is_watching+0x15/0xb0
[  451.027346][ T6048]  __submit_merged_write_cond+0x3c9/0x4e0
[  451.027359][ T6048]  ? __pfx___submit_merged_write_cond+0x10/0x10
[  451.027375][ T6048]  f2fs_write_data_pages+0x2a27/0x36f0
[  451.027397][ T6048]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  451.027421][ T6048]  ? __pfx_hlock_conflict+0x10/0x10
[  451.027427][ T6048]  ? __bfs+0x153/0x290
[  451.027443][ T6048]  ? __pfx_hlock_conflict+0x10/0x10
[  451.027456][ T6048]  ? lockdep_unlock+0x5d/0xd0
[  451.027463][ T6048]  ? __lock_acquire+0x13e8/0x2cf0
[  451.027482][ T6048]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  451.027492][ T6048]  do_writepages+0x338/0x560
[  451.027506][ T6048]  ? do_raw_spin_unlock+0x4d/0x210
[  451.027516][ T6048]  filemap_fdatawrite+0x1e9/0x2f0
[  451.027528][ T6048]  ? __pfx_filemap_fdatawrite+0x10/0x10
[  451.027552][ T6048]  ? do_raw_spin_unlock+0x4d/0x210
[  451.027561][ T6048]  f2fs_sync_dirty_inodes+0x30e/0x830
[  451.027577][ T6048]  f2fs_write_checkpoint+0xa3d/0x2710
[  451.027598][ T6048]  ? __pfx_f2fs_write_checkpoint+0x10/0x10
[  451.027625][ T6048]  kill_f2fs_super+0x2dd/0x700
[  451.027638][ T6048]  ? __pfx_kill_f2fs_super+0x10/0x10
[  451.027652][ T6048]  ? call_rcu+0x64b/0x8b0
[  451.027659][ T6048]  ? lockdep_hardirqs_on+0x7a/0x110
[  451.027673][ T6048]  deactivate_locked_super+0xbc/0x110
[  451.027685][ T6048]  cleanup_mnt+0x3d3/0x460
[  451.027694][ T6048]  task_work_run+0x1d9/0x270
[  451.027708][ T6048]  ? __pfx_task_work_run+0x10/0x10
[  451.027721][ T6048]  exit_to_user_mode_loop+0x1fa/0x730
[  451.027730][ T6048]  ? rcu_is_watching+0x15/0xb0
[  451.027740][ T6048]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  451.027749][ T6048]  do_syscall_64+0x353/0x580
[  451.027758][ T6048]  ? trace_irq_disable+0x3b/0x140
[  451.027770][ T6048]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  451.027777][ T6048] RIP: 0033:0x7fc5e679f257
[  451.027785][ T6048] Code: a2 c7 05 9c 44 25 00 00 00 00 00 eb 96 e8 e1 12 00 00 90 31 f6 e9 09 00 00 00 66 0f 1f 84 00 00 00 00 00 b8 a6 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 01 c3 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8
[  451.027792][ T6048] RSP: 002b:00007fff49366408 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
[  451.027802][ T6048] RAX: 0000000000000000 RBX: 00007fc5e683445c RCX: 00007fc5e679f257
[  451.027807][ T6048] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007fff493664c0
[  451.027812][ T6048] RBP: 00007fff493664c0 R08: 00007fff493674c0 R09: 00000000ffffffff
[  451.027817][ T6048] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fff49367550
[  451.027821][ T6048] R13: 00007fc5e683445c R14: 000000000006e130 R15: 00007fff49367590
[  451.027832][ T6048]  </TASK>
[  451.027836][ T6048] F2FS-fs (loop2): Stopped filesystem due to reason: 3
[  451.131982][T10300] F2FS-fs (loop1): Small segment_count (9 < 1 * 24)
[  451.157581][T10300] F2FS-fs (loop1): Can't find valid F2FS filesystem in 1th superblock
[  451.265519][T10300] F2FS-fs (loop1): f2fs_recover_fsync_data: recovery fsync data, check_only: 0
[  451.278723][T10300] F2FS-fs (loop1): Try to recover 1th superblock, ret: 0
[  451.292299][T10300] F2FS-fs (loop1): Mounted with checkpoint version = 48b305e5
[  451.323419][ T6044] CPU: 0 UID: 0 PID: 6044 Comm: syz-executor Not tainted syzkaller #0 PREEMPT(full) 
[  451.323456][ T6044] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
[  451.323461][ T6044] Call Trace:
[  451.323465][ T6044]  <TASK>
[  451.323469][ T6044]  dump_stack_lvl+0xe8/0x150
[  451.323484][ T6044]  f2fs_stop_checkpoint+0x3f6/0x5d0
[  451.323496][ T6044]  f2fs_write_end_io+0x124b/0x1710
[  451.323514][ T6044]  __submit_merged_bio+0x258/0x6a0
[  451.323523][ T6044]  ? rcu_is_watching+0x15/0xb0
[  451.323536][ T6044]  __submit_merged_write_cond+0x3c9/0x4e0
[  451.323548][ T6044]  ? __pfx___submit_merged_write_cond+0x10/0x10
[  451.323564][ T6044]  f2fs_write_data_pages+0x2a27/0x36f0
[  451.323586][ T6044]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  451.323616][ T6044]  ? __pfx_hlock_conflict+0x10/0x10
[  451.323623][ T6044]  ? __bfs+0x153/0x290
[  451.323631][ T6044]  ? __pfx_hlock_conflict+0x10/0x10
[  451.323644][ T6044]  ? lockdep_unlock+0x5d/0xd0
[  451.323651][ T6044]  ? __lock_acquire+0x13e8/0x2cf0
[  451.323670][ T6044]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  451.323680][ T6044]  do_writepages+0x338/0x560
[  451.323693][ T6044]  ? do_raw_spin_unlock+0x4d/0x210
[  451.323703][ T6044]  filemap_fdatawrite+0x1e9/0x2f0
[  451.323714][ T6044]  ? __pfx_filemap_fdatawrite+0x10/0x10
[  451.323738][ T6044]  ? do_raw_spin_unlock+0x4d/0x210
[  451.323747][ T6044]  f2fs_sync_dirty_inodes+0x30e/0x830
[  451.323763][ T6044]  f2fs_write_checkpoint+0xa3d/0x2710
[  451.323784][ T6044]  ? __pfx_f2fs_write_checkpoint+0x10/0x10
[  451.323812][ T6044]  kill_f2fs_super+0x2dd/0x700
[  451.323826][ T6044]  ? __pfx_kill_f2fs_super+0x10/0x10
[  451.323839][ T6044]  ? call_rcu+0x64b/0x8b0
[  451.323846][ T6044]  ? lockdep_hardirqs_on+0x7a/0x110
[  451.323886][ T6044]  deactivate_locked_super+0xbc/0x110
[  451.323900][ T6044]  cleanup_mnt+0x3d3/0x460
[  451.323909][ T6044]  task_work_run+0x1d9/0x270
[  451.323921][ T6044]  ? __pfx_task_work_run+0x10/0x10
[  451.323934][ T6044]  exit_to_user_mode_loop+0x1fa/0x730
[  451.323943][ T6044]  ? rcu_is_watching+0x15/0xb0
[  451.323953][ T6044]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  451.323961][ T6044]  do_syscall_64+0x353/0x580
[  451.323969][ T6044]  ? trace_irq_disable+0x3b/0x140
[  451.323981][ T6044]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  451.323989][ T6044] RIP: 0033:0x7fc4dff9f257
[  451.323997][ T6044] Code: a2 c7 05 9c 44 25 00 00 00 00 00 eb 96 e8 e1 12 00 00 90 31 f6 e9 09 00 00 00 66 0f 1f 84 00 00 00 00 00 b8 a6 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 01 c3 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8
[  451.324004][ T6044] RSP: 002b:00007fff836538d8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
[  451.324013][ T6044] RAX: 0000000000000000 RBX: 00007fc4e003445c RCX: 00007fc4dff9f257
[  451.324018][ T6044] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007fff83653990
[  451.324022][ T6044] RBP: 00007fff83653990 R08: 00007fff83654990 R09: 00000000ffffffff
[  451.324027][ T6044] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fff83654a20
[  451.324031][ T6044] R13: 00007fc4e003445c R14: 000000000006e262 R15: 00007fff83654a60
[  451.324043][ T6044]  </TASK>
[  451.324353][ T6044] F2FS-fs (loop1): Stopped filesystem due to reason: 3
[  451.414117][T10302] F2FS-fs (loop0): Small segment_count (9 < 1 * 24)
[  451.439158][T10302] F2FS-fs (loop0): Can't find valid F2FS filesystem in 1th superblock
[  451.515453][T10302] F2FS-fs (loop0): f2fs_recover_fsync_data: recovery fsync data, check_only: 0
[  451.533409][T10302] F2FS-fs (loop0): Try to recover 1th superblock, ret: 0
[  451.540060][T10302] F2FS-fs (loop0): Mounted with checkpoint version = 48b305e5
[  451.577906][ T6041] CPU: 1 UID: 0 PID: 6041 Comm: syz-executor Not tainted syzkaller #0 PREEMPT(full) 
[  451.577922][ T6041] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
[  451.577928][ T6041] Call Trace:
[  451.577932][ T6041]  <TASK>
[  451.577936][ T6041]  dump_stack_lvl+0xe8/0x150
[  451.577953][ T6041]  f2fs_stop_checkpoint+0x3f6/0x5d0
[  451.577997][ T6041]  f2fs_write_end_io+0x124b/0x1710
[  451.578029][ T6041]  __submit_merged_bio+0x258/0x6a0
[  451.578043][ T6041]  ? rcu_is_watching+0x15/0xb0
[  451.578064][ T6041]  __submit_merged_write_cond+0x3c9/0x4e0
[  451.578085][ T6041]  ? __pfx___submit_merged_write_cond+0x10/0x10
[  451.578116][ T6041]  f2fs_write_data_pages+0x2a27/0x36f0
[  451.578130][ T6041]  ? __lock_acquire+0x683/0x2cf0
[  451.578153][ T6041]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  451.578179][ T6041]  ? __pfx_hlock_conflict+0x10/0x10
[  451.578186][ T6041]  ? __bfs+0x153/0x290
[  451.578194][ T6041]  ? __pfx_hlock_conflict+0x10/0x10
[  451.578208][ T6041]  ? lockdep_unlock+0x5d/0xd0
[  451.578216][ T6041]  ? __lock_acquire+0x13e8/0x2cf0
[  451.578235][ T6041]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  451.578245][ T6041]  do_writepages+0x338/0x560
[  451.578260][ T6041]  ? do_raw_spin_unlock+0x4d/0x210
[  451.578270][ T6041]  filemap_fdatawrite+0x1e9/0x2f0
[  451.578282][ T6041]  ? __pfx_filemap_fdatawrite+0x10/0x10
[  451.578309][ T6041]  ? do_raw_spin_unlock+0x4d/0x210
[  451.578319][ T6041]  f2fs_sync_dirty_inodes+0x30e/0x830
[  451.578336][ T6041]  f2fs_write_checkpoint+0xa3d/0x2710
[  451.578376][ T6041]  ? __pfx_f2fs_write_checkpoint+0x10/0x10
[  451.578407][ T6041]  kill_f2fs_super+0x2dd/0x700
[  451.578420][ T6041]  ? __pfx_kill_f2fs_super+0x10/0x10
[  451.578435][ T6041]  ? call_rcu+0x64b/0x8b0
[  451.578442][ T6041]  ? lockdep_hardirqs_on+0x7a/0x110
[  451.578456][ T6041]  deactivate_locked_super+0xbc/0x110
[  451.578468][ T6041]  cleanup_mnt+0x3d3/0x460
[  451.578478][ T6041]  task_work_run+0x1d9/0x270
[  451.578491][ T6041]  ? __pfx_task_work_run+0x10/0x10
[  451.578507][ T6041]  exit_to_user_mode_loop+0x1fa/0x730
[  451.578516][ T6041]  ? rcu_is_watching+0x15/0xb0
[  451.578527][ T6041]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  451.578535][ T6041]  do_syscall_64+0x353/0x580
[  451.578544][ T6041]  ? trace_irq_disable+0x3b/0x140
[  451.578556][ T6041]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  451.578564][ T6041] RIP: 0033:0x7fc736b9f257
[  451.578572][ T6041] Code: a2 c7 05 9c 44 25 00 00 00 00 00 eb 96 e8 e1 12 00 00 90 31 f6 e9 09 00 00 00 66 0f 1f 84 00 00 00 00 00 b8 a6 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 01 c3 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8
[  451.578579][ T6041] RSP: 002b:00007fffd6f1ae68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
[  451.578589][ T6041] RAX: 0000000000000000 RBX: 00007fc736c3445c RCX: 00007fc736b9f257
[  451.578594][ T6041] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007fffd6f1af20
[  451.578599][ T6041] RBP: 00007fffd6f1af20 R08: 00007fffd6f1bf20 R09: 00000000ffffffff
[  451.578604][ T6041] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fffd6f1bfb0
[  451.578608][ T6041] R13: 00007fc736c3445c R14: 000000000006e353 R15: 00007fffd6f1bff0
[  451.578620][ T6041]  </TASK>
[  451.621705][ T6041] F2FS-fs (loop0): Stopped filesystem due to reason: 3
[  451.690575][T10308] F2FS-fs (loop2): Small segment_count (9 < 1 * 24)

[host] Command execution timed out after 6m0s