196][T10069] F2FS-fs (loop2): f2fs_recover_fsync_data: recovery fsync data, check_only: 0
[  438.969331][T10069] F2FS-fs (loop2): Try to recover 1th superblock, ret: 0
[  438.985167][T10069] F2FS-fs (loop2): Mounted with checkpoint version = 48b305e5
[  439.047000][ T6006] CPU: 1 UID: 0 PID: 6006 Comm: syz-executor Not tainted syzkaller #0 PREEMPT(full) 
[  439.047020][ T6006] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
[  439.047027][ T6006] Call Trace:
[  439.047035][ T6006]  <TASK>
[  439.047041][ T6006]  dump_stack_lvl+0xe8/0x150
[  439.047066][ T6006]  f2fs_stop_checkpoint+0x3f6/0x5d0
[  439.047086][ T6006]  f2fs_write_end_io+0x124b/0x1710
[  439.047118][ T6006]  __submit_merged_bio+0x258/0x6a0
[  439.047162][ T6006]  ? rcu_is_watching+0x15/0xb0
[  439.047184][ T6006]  __submit_merged_write_cond+0x3c9/0x4e0
[  439.047207][ T6006]  ? __pfx___submit_merged_write_cond+0x10/0x10
[  439.047240][ T6006]  f2fs_write_data_pages+0x2a27/0x36f0
[  439.047257][ T6006]  ? __lock_acquire+0x683/0x2cf0
[  439.047296][ T6006]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  439.047342][ T6006]  ? __pfx_hlock_conflict+0x10/0x10
[  439.047354][ T6006]  ? __bfs+0x153/0x290
[  439.047366][ T6006]  ? __pfx_hlock_conflict+0x10/0x10
[  439.047391][ T6006]  ? lockdep_unlock+0x5d/0xd0
[  439.047405][ T6006]  ? __lock_acquire+0x13e8/0x2cf0
[  439.047437][ T6006]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  439.047456][ T6006]  do_writepages+0x338/0x560
[  439.047482][ T6006]  ? do_raw_spin_unlock+0x4d/0x210
[  439.047498][ T6006]  filemap_fdatawrite+0x1e9/0x2f0
[  439.047518][ T6006]  ? __pfx_filemap_fdatawrite+0x10/0x10
[  439.047564][ T6006]  ? do_raw_spin_unlock+0x4d/0x210
[  439.047582][ T6006]  f2fs_sync_dirty_inodes+0x30e/0x830
[  439.047610][ T6006]  f2fs_write_checkpoint+0xa3d/0x2710
[  439.047650][ T6006]  ? __pfx_f2fs_write_checkpoint+0x10/0x10
[  439.047703][ T6006]  kill_f2fs_super+0x2dd/0x700
[  439.047728][ T6006]  ? __pfx_kill_f2fs_super+0x10/0x10
[  439.047754][ T6006]  ? call_rcu+0x64b/0x8b0
[  439.047765][ T6006]  ? lockdep_hardirqs_on+0x7a/0x110
[  439.047808][ T6006]  deactivate_locked_super+0xbc/0x110
[  439.047829][ T6006]  cleanup_mnt+0x3d3/0x460
[  439.047844][ T6006]  task_work_run+0x1d9/0x270
[  439.047865][ T6006]  ? __pfx_task_work_run+0x10/0x10
[  439.047890][ T6006]  exit_to_user_mode_loop+0x1fa/0x730
[  439.047906][ T6006]  ? rcu_is_watching+0x15/0xb0
[  439.047930][ T6006]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  439.047945][ T6006]  do_syscall_64+0x353/0x580
[  439.047958][ T6006]  ? trace_irq_disable+0x3b/0x140
[  439.047978][ T6006]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  439.047990][ T6006] RIP: 0033:0x7fe55f39f257
[  439.048003][ T6006] 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
[  439.048014][ T6006] RSP: 002b:00007ffd634636d8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
[  439.048027][ T6006] RAX: 0000000000000000 RBX: 00007fe55f43445c RCX: 00007fe55f39f257
[  439.048035][ T6006] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffd63463790
[  439.048044][ T6006] RBP: 00007ffd63463790 R08: 00007ffd63464790 R09: 00000000ffffffff
[  439.048051][ T6006] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffd63464820
[  439.048060][ T6006] R13: 00007fe55f43445c R14: 000000000006b253 R15: 00007ffd63464860
[  439.048081][ T6006]  </TASK>
[  439.053334][ T6006] F2FS-fs (loop2): Stopped filesystem due to reason: 3
[  439.250511][T10073] loop1: detected capacity change from 0 to 40427
[  439.256045][T10073] F2FS-fs (loop1): Small segment_count (9 < 1 * 24)
[  439.258157][T10073] F2FS-fs (loop1): Can't find valid F2FS filesystem in 1th superblock
[  439.342096][T10073] F2FS-fs (loop1): f2fs_recover_fsync_data: recovery fsync data, check_only: 0
[  439.362327][T10073] F2FS-fs (loop1): Try to recover 1th superblock, ret: 0
[  439.370221][T10073] F2FS-fs (loop1): Mounted with checkpoint version = 48b305e5
[  439.415737][ T6002] CPU: 0 UID: 0 PID: 6002 Comm: syz-executor Not tainted syzkaller #0 PREEMPT(full) 
[  439.415758][ T6002] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
[  439.415767][ T6002] Call Trace:
[  439.415772][ T6002]  <TASK>
[  439.415778][ T6002]  dump_stack_lvl+0xe8/0x150
[  439.415801][ T6002]  f2fs_stop_checkpoint+0x3f6/0x5d0
[  439.415818][ T6002]  f2fs_write_end_io+0x124b/0x1710
[  439.415842][ T6002]  __submit_merged_bio+0x258/0x6a0
[  439.415883][ T6002]  ? rcu_is_watching+0x15/0xb0
[  439.415906][ T6002]  __submit_merged_write_cond+0x3c9/0x4e0
[  439.415924][ T6002]  ? __pfx___submit_merged_write_cond+0x10/0x10
[  439.415951][ T6002]  f2fs_write_data_pages+0x2a27/0x36f0
[  439.415967][ T6002]  ? __lock_acquire+0x683/0x2cf0
[  439.416002][ T6002]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  439.416044][ T6002]  ? __pfx_hlock_conflict+0x10/0x10
[  439.416055][ T6002]  ? __bfs+0x153/0x290
[  439.416068][ T6002]  ? __pfx_hlock_conflict+0x10/0x10
[  439.416090][ T6002]  ? lockdep_unlock+0x5d/0xd0
[  439.416103][ T6002]  ? __lock_acquire+0x13e8/0x2cf0
[  439.416167][ T6002]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  439.416185][ T6002]  do_writepages+0x338/0x560
[  439.416208][ T6002]  ? do_raw_spin_unlock+0x4d/0x210
[  439.416224][ T6002]  filemap_fdatawrite+0x1e9/0x2f0
[  439.416243][ T6002]  ? __pfx_filemap_fdatawrite+0x10/0x10
[  439.416283][ T6002]  ? do_raw_spin_unlock+0x4d/0x210
[  439.416300][ T6002]  f2fs_sync_dirty_inodes+0x30e/0x830
[  439.416325][ T6002]  f2fs_write_checkpoint+0xa3d/0x2710
[  439.416360][ T6002]  ? __pfx_f2fs_write_checkpoint+0x10/0x10
[  439.416411][ T6002]  kill_f2fs_super+0x2dd/0x700
[  439.416438][ T6002]  ? __pfx_kill_f2fs_super+0x10/0x10
[  439.416462][ T6002]  ? call_rcu+0x64b/0x8b0
[  439.416473][ T6002]  ? lockdep_hardirqs_on+0x7a/0x110
[  439.416496][ T6002]  deactivate_locked_super+0xbc/0x110
[  439.416515][ T6002]  cleanup_mnt+0x3d3/0x460
[  439.416531][ T6002]  task_work_run+0x1d9/0x270
[  439.416551][ T6002]  ? __pfx_task_work_run+0x10/0x10
[  439.416573][ T6002]  exit_to_user_mode_loop+0x1fa/0x730
[  439.416588][ T6002]  ? rcu_is_watching+0x15/0xb0
[  439.416605][ T6002]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  439.416619][ T6002]  do_syscall_64+0x353/0x580
[  439.416633][ T6002]  ? trace_irq_disable+0x3b/0x140
[  439.416650][ T6002]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  439.416661][ T6002] RIP: 0033:0x7fbec519f257
[  439.416673][ T6002] 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
[  439.416682][ T6002] RSP: 002b:00007fff2e02d568 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
[  439.416696][ T6002] RAX: 0000000000000000 RBX: 00007fbec523445c RCX: 00007fbec519f257
[  439.416705][ T6002] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007fff2e02d620
[  439.416712][ T6002] RBP: 00007fff2e02d620 R08: 00007fff2e02e620 R09: 00000000ffffffff
[  439.416719][ T6002] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fff2e02e6b0
[  439.416726][ T6002] R13: 00007fbec523445c R14: 000000000006b3d2 R15: 00007fff2e02e6f0
[  439.416746][ T6002]  </TASK>
[  439.418417][ T6002] F2FS-fs (loop1): Stopped filesystem due to reason: 3
[  439.644501][T10075] loop0: detected capacity change from 0 to 40427
[  439.660969][T10075] F2FS-fs (loop0): Small segment_count (9 < 1 * 24)
[  439.667188][T10075] F2FS-fs (loop0): Can't find valid F2FS filesystem in 1th superblock
[  439.670636][T10079] loop2: detected capacity change from 0 to 40427
[  439.673943][T10079] F2FS-fs (loop2): Small segment_count (9 < 1 * 24)
[  439.676493][T10079] F2FS-fs (loop2): Can't find valid F2FS filesystem in 1th superblock
[  439.749638][T10079] F2FS-fs (loop2): f2fs_recover_fsync_data: recovery fsync data, check_only: 0
[  439.754237][T10079] F2FS-fs (loop2): Try to recover 1th superblock, ret: 0
[  439.756824][T10079] F2FS-fs (loop2): Mounted with checkpoint version = 48b305e5
[  439.772969][ T6006] CPU: 1 UID: 0 PID: 6006 Comm: syz-executor Not tainted syzkaller #0 PREEMPT(full) 
[  439.772987][ T6006] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
[  439.772996][ T6006] Call Trace:
[  439.773003][ T6006]  <TASK>
[  439.773009][ T6006]  dump_stack_lvl+0xe8/0x150
[  439.773033][ T6006]  f2fs_stop_checkpoint+0x3f6/0x5d0
[  439.773053][ T6006]  f2fs_write_end_io+0x124b/0x1710
[  439.773083][ T6006]  __submit_merged_bio+0x258/0x6a0
[  439.773097][ T6006]  ? rcu_is_watching+0x15/0xb0
[  439.773162][ T6006]  __submit_merged_write_cond+0x3c9/0x4e0
[  439.773185][ T6006]  ? __pfx___submit_merged_write_cond+0x10/0x10
[  439.773218][ T6006]  f2fs_write_data_pages+0x2a27/0x36f0
[  439.773235][ T6006]  ? __lock_acquire+0x683/0x2cf0
[  439.773273][ T6006]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  439.773316][ T6006]  ? __pfx_hlock_conflict+0x10/0x10
[  439.773327][ T6006]  ? __bfs+0x153/0x290
[  439.773342][ T6006]  ? __pfx_hlock_conflict+0x10/0x10
[  439.773363][ T6006]  ? lockdep_unlock+0x5d/0xd0
[  439.773378][ T6006]  ? __lock_acquire+0x13e8/0x2cf0
[  439.773409][ T6006]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  439.773425][ T6006]  do_writepages+0x338/0x560
[  439.773448][ T6006]  ? do_raw_spin_unlock+0x4d/0x210
[  439.773465][ T6006]  filemap_fdatawrite+0x1e9/0x2f0
[  439.773485][ T6006]  ? __pfx_filemap_fdatawrite+0x10/0x10
[  439.773528][ T6006]  ? do_raw_spin_unlock+0x4d/0x210
[  439.773543][ T6006]  f2fs_sync_dirty_inodes+0x30e/0x830
[  439.773571][ T6006]  f2fs_write_checkpoint+0xa3d/0x2710
[  439.773609][ T6006]  ? __pfx_f2fs_write_checkpoint+0x10/0x10
[  439.773656][ T6006]  kill_f2fs_super+0x2dd/0x700
[  439.773680][ T6006]  ? __pfx_kill_f2fs_super+0x10/0x10
[  439.773704][ T6006]  ? call_rcu+0x64b/0x8b0
[  439.773716][ T6006]  ? lockdep_hardirqs_on+0x7a/0x110
[  439.773739][ T6006]  deactivate_locked_super+0xbc/0x110
[  439.773757][ T6006]  cleanup_mnt+0x3d3/0x460
[  439.773773][ T6006]  task_work_run+0x1d9/0x270
[  439.773793][ T6006]  ? __pfx_task_work_run+0x10/0x10
[  439.773815][ T6006]  exit_to_user_mode_loop+0x1fa/0x730
[  439.773832][ T6006]  ? rcu_is_watching+0x15/0xb0
[  439.773849][ T6006]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  439.773863][ T6006]  do_syscall_64+0x353/0x580
[  439.773875][ T6006]  ? trace_irq_disable+0x3b/0x140
[  439.773894][ T6006]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  439.773907][ T6006] RIP: 0033:0x7fe55f39f257
[  439.773926][ T6006] 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
[  439.773935][ T6006] RSP: 002b:00007ffd634636d8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
[  439.773950][ T6006] RAX: 0000000000000000 RBX: 00007fe55f43445c RCX: 00007fe55f39f257
[  439.773957][ T6006] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffd63463790
[  439.773965][ T6006] RBP: 00007ffd63463790 R08: 00007ffd63464790 R09: 00000000ffffffff
[  439.773973][ T6006] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffd63464820
[  439.773980][ T6006] R13: 00007fe55f43445c R14: 000000000006b547 R15: 00007ffd63464860
[  439.773999][ T6006]  </TASK>
[  439.807639][ T6006] F2FS-fs (loop2): Stopped filesystem due to reason: 3
[  439.895225][T10075] F2FS-fs (loop0): f2fs_recover_fsync_data: recovery fsync data, check_only: 0
[  439.899768][   T31] loop2: lost filesystem error report for type 5 error -108
[  439.908230][T10075] F2FS-fs (loop0): Try to recover 1th superblock, ret: 0
[  439.924681][T10075] F2FS-fs (loop0): Mounted with checkpoint version = 48b305e5
[  439.999942][ T6001] bio_check_eod: 37 callbacks suppressed
[  439.999953][ T6001] syz-executor: attempt to access beyond end of device
[  439.999953][ T6001] loop0: rw=2049, sector=45096, nr_sectors = 8 limit=40427
[  440.012406][ T6001] CPU: 0 UID: 0 PID: 6001 Comm: syz-executor Not tainted syzkaller #0 PREEMPT(full) 
[  440.012442][ T6001] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
[  440.012447][ T6001] Call Trace:
[  440.012452][ T6001]  <TASK>
[  440.012455][ T6001]  dump_stack_lvl+0xe8/0x150
[  440.012470][ T6001]  f2fs_stop_checkpoint+0x3f6/0x5d0
[  440.012483][ T6001]  f2fs_write_end_io+0x124b/0x1710
[  440.012501][ T6001]  __submit_merged_bio+0x258/0x6a0
[  440.012509][ T6001]  ? rcu_is_watching+0x15/0xb0
[  440.012522][ T6001]  __submit_merged_write_cond+0x3c9/0x4e0
[  440.012535][ T6001]  ? __pfx___submit_merged_write_cond+0x10/0x10
[  440.012552][ T6001]  f2fs_write_data_pages+0x2a27/0x36f0
[  440.012562][ T6001]  ? __lock_acquire+0x683/0x2cf0
[  440.012585][ T6001]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  440.012640][ T6001]  ? __pfx_hlock_conflict+0x10/0x10
[  440.012652][ T6001]  ? __bfs+0x153/0x290
[  440.012666][ T6001]  ? __pfx_hlock_conflict+0x10/0x10
[  440.012687][ T6001]  ? lockdep_unlock+0x5d/0xd0
[  440.012699][ T6001]  ? __lock_acquire+0x13e8/0x2cf0
[  440.012738][ T6001]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  440.012753][ T6001]  do_writepages+0x338/0x560
[  440.012776][ T6001]  ? do_raw_spin_unlock+0x4d/0x210
[  440.012792][ T6001]  filemap_fdatawrite+0x1e9/0x2f0
[  440.012810][ T6001]  ? __pfx_filemap_fdatawrite+0x10/0x10
[  440.012846][ T6001]  ? do_raw_spin_unlock+0x4d/0x210
[  440.012856][ T6001]  f2fs_sync_dirty_inodes+0x30e/0x830
[  440.012877][ T6001]  f2fs_write_checkpoint+0xa3d/0x2710
[  440.012900][ T6001]  ? __pfx_f2fs_write_checkpoint+0x10/0x10
[  440.012931][ T6001]  kill_f2fs_super+0x2dd/0x700
[  440.012944][ T6001]  ? __pfx_kill_f2fs_super+0x10/0x10
[  440.012959][ T6001]  ? call_rcu+0x64b/0x8b0
[  440.012966][ T6001]  ? lockdep_hardirqs_on+0x7a/0x110
[  440.012980][ T6001]  deactivate_locked_super+0xbc/0x110
[  440.012991][ T6001]  cleanup_mnt+0x3d3/0x460
[  440.013001][ T6001]  task_work_run+0x1d9/0x270
[  440.013013][ T6001]  ? __pfx_task_work_run+0x10/0x10
[  440.013027][ T6001]  exit_to_user_mode_loop+0x1fa/0x730
[  440.013037][ T6001]  ? rcu_is_watching+0x15/0xb0
[  440.013047][ T6001]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  440.013055][ T6001]  do_syscall_64+0x353/0x580
[  440.013063][ T6001]  ? trace_irq_disable+0x3b/0x140
[  440.013074][ T6001]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  440.013081][ T6001] RIP: 0033:0x7f319199f257
[  440.013090][ T6001] 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
[  440.013097][ T6001] RSP: 002b:00007fff67960bb8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
[  440.013106][ T6001] RAX: 0000000000000000 RBX: 00007f3191a3445c RCX: 00007f319199f257
[  440.013111][ T6001] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007fff67960c70
[  440.013146][ T6001] RBP: 00007fff67960c70 R08: 00007fff67961c70 R09: 00000000ffffffff
[  440.013154][ T6001] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fff67961d00
[  440.013161][ T6001] R13: 00007f3191a3445c R14: 000000000006b5f5 R15: 00007fff67961d40
[  440.013174][ T6001]  </TASK>
[  440.120359][ T6001] F2FS-fs (loop0): Stopped filesystem due to reason: 3
[  440.220564][T10085] loop1: detected capacity change from 0 to 40427
[  440.233925][T10085] F2FS-fs (loop1): Small segment_count (9 < 1 * 24)
[  440.236738][T10085] F2FS-fs (loop1): Can't find valid F2FS filesystem in 1th superblock
[  440.326083][ T1383] ieee802154 phy0 wpan0: encryption failed: -22
[  440.328224][ T1383] ieee802154 phy1 wpan1: encryption failed: -22
[  440.342014][T10085] F2FS-fs (loop1): f2fs_recover_fsync_data: recovery fsync data, check_only: 0
[  440.353798][T10085] F2FS-fs (loop1): Try to recover 1th superblock, ret: 0
[  440.359237][T10085] F2FS-fs (loop1): Mounted with checkpoint version = 48b305e5
[  440.369370][   T33] kauditd_printk_skb: 22 callbacks suppressed
[  440.369381][   T33] audit: type=1800 audit(1785887731.577:1925): pid=10085 uid=0 auid=4294967295 ses=4294967295 subj=unconfined op=collect_data cause=failed(directio) comm="syz.1.979" name="file1" dev="loop1" ino=10 res=0 errno=0
[  440.392752][T10085] syz.1.979: attempt to access beyond end of device
[  440.392752][T10085] loop1: rw=2049, sector=53248, nr_sectors = 976 limit=40427
[  440.399617][   T33] audit: type=1800 audit(1785887731.577:1926): pid=10085 uid=0 auid=4294967295 ses=4294967295 subj=unconfined op=collect_data cause=failed(directio) comm="syz.1.979" name="file1" dev="loop1" ino=10 res=0 errno=0
[  440.410225][T10085] syz.1.979: attempt to access beyond end of device
[  440.410225][T10085] loop1: rw=8423425, sector=54224, nr_sectors = 8 limit=40427
[  440.411588][T10087] loop2: detected capacity change from 0 to 40427
[  440.427727][T10087] F2FS-fs (loop2): Small segment_count (9 < 1 * 24)
[  440.438687][T10087] F2FS-fs (loop2): Can't find valid F2FS filesystem in 1th superblock
[  440.445058][ T6002] syz-executor: attempt to access beyond end of device
[  440.445058][ T6002] loop1: rw=2049, sector=45096, nr_sectors = 8 limit=40427
[  440.454074][ T6002] CPU: 1 UID: 0 PID: 6002 Comm: syz-executor Not tainted syzkaller #0 PREEMPT(full) 
[  440.454093][ T6002] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
[  440.454100][ T6002] Call Trace:
[  440.454137][ T6002]  <TASK>
[  440.454144][ T6002]  dump_stack_lvl+0xe8/0x150
[  440.454188][ T6002]  f2fs_stop_checkpoint+0x3f6/0x5d0
[  440.454209][ T6002]  f2fs_write_end_io+0x124b/0x1710
[  440.454239][ T6002]  __submit_merged_bio+0x258/0x6a0
[  440.454254][ T6002]  ? rcu_is_watching+0x15/0xb0
[  440.454275][ T6002]  __submit_merged_write_cond+0x3c9/0x4e0
[  440.454296][ T6002]  ? __pfx___submit_merged_write_cond+0x10/0x10
[  440.454326][ T6002]  f2fs_write_data_pages+0x2a27/0x36f0
[  440.454342][ T6002]  ? __lock_acquire+0x683/0x2cf0
[  440.454378][ T6002]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  440.454423][ T6002]  ? __pfx_hlock_conflict+0x10/0x10
[  440.454440][ T6002]  ? __bfs+0x153/0x290
[  440.454454][ T6002]  ? __pfx_hlock_conflict+0x10/0x10
[  440.454476][ T6002]  ? lockdep_unlock+0x5d/0xd0
[  440.454488][ T6002]  ? __lock_acquire+0x13e8/0x2cf0
[  440.454519][ T6002]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  440.454536][ T6002]  do_writepages+0x338/0x560
[  440.454559][ T6002]  ? do_raw_spin_unlock+0x4d/0x210
[  440.454575][ T6002]  filemap_fdatawrite+0x1e9/0x2f0
[  440.454594][ T6002]  ? __pfx_filemap_fdatawrite+0x10/0x10
[  440.454638][ T6002]  ? do_raw_spin_unlock+0x4d/0x210
[  440.454654][ T6002]  f2fs_sync_dirty_inodes+0x30e/0x830
[  440.454681][ T6002]  f2fs_write_checkpoint+0xa3d/0x2710
[  440.454738][ T6002]  ? __pfx_f2fs_write_checkpoint+0x10/0x10
[  440.454792][ T6002]  kill_f2fs_super+0x2dd/0x700
[  440.454815][ T6002]  ? __pfx_kill_f2fs_super+0x10/0x10
[  440.454838][ T6002]  ? call_rcu+0x64b/0x8b0
[  440.454848][ T6002]  ? lockdep_hardirqs_on+0x7a/0x110
[  440.454871][ T6002]  deactivate_locked_super+0xbc/0x110
[  440.454890][ T6002]  cleanup_mnt+0x3d3/0x460
[  440.454905][ T6002]  task_work_run+0x1d9/0x270
[  440.454925][ T6002]  ? __pfx_task_work_run+0x10/0x10
[  440.454947][ T6002]  exit_to_user_mode_loop+0x1fa/0x730
[  440.454963][ T6002]  ? rcu_is_watching+0x15/0xb0
[  440.454980][ T6002]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  440.454994][ T6002]  do_syscall_64+0x353/0x580
[  440.455008][ T6002]  ? trace_irq_disable+0x3b/0x140
[  440.455026][ T6002]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  440.455038][ T6002] RIP: 0033:0x7fbec519f257
[  440.455050][ T6002] 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
[  440.455061][ T6002] RSP: 002b:00007fff2e02d568 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
[  440.455074][ T6002] RAX: 0000000000000000 RBX: 00007fbec523445c RCX: 00007fbec519f257
[  440.455082][ T6002] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007fff2e02d620
[  440.455090][ T6002] RBP: 00007fff2e02d620 R08: 00007fff2e02e620 R09: 00000000ffffffff
[  440.455097][ T6002] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fff2e02e6b0
[  440.455129][ T6002] R13: 00007fbec523445c R14: 000000000006b7e4 R15: 00007fff2e02e6f0
[  440.455151][ T6002]  </TASK>
[  440.575046][ T6002] F2FS-fs (loop1): Stopped filesystem due to reason: 3
[  440.600291][T10091] loop0: detected capacity change from 0 to 40427
[  440.604892][T10091] F2FS-fs (loop0): Small segment_count (9 < 1 * 24)
[  440.626812][T10087] F2FS-fs (loop2): f2fs_recover_fsync_data: recovery fsync data, check_only: 0
[  440.629548][T10091] F2FS-fs (loop0): Can't find valid F2FS filesystem in 1th superblock
[  440.644337][T10087] F2FS-fs (loop2): Try to recover 1th superblock, ret: 0
[  440.648400][T10087] F2FS-fs (loop2): Mounted with checkpoint version = 48b305e5
[  440.698225][   T33] audit: type=1800 audit(1785887731.907:1927): pid=10087 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
[  440.711334][   T33] audit: type=1800 audit(1785887731.907:1928): pid=10087 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
[  440.724439][T10087] syz.2.980: attempt to access beyond end of device
[  440.724439][T10087] loop2: rw=2049, sector=53248, nr_sectors = 976 limit=40427
[  440.738204][T10091] F2FS-fs (loop0): f2fs_recover_fsync_data: recovery fsync data, check_only: 0
[  440.745165][T10091] F2FS-fs (loop0): Try to recover 1th superblock, ret: 0
[  440.748192][T10091] F2FS-fs (loop0): Mounted with checkpoint version = 48b305e5
[  440.748843][T10087] syz.2.980: attempt to access beyond end of device
[  440.748843][T10087] loop2: rw=8423425, sector=54224, nr_sectors = 8 limit=40427
[  440.759921][   T33] audit: type=1800 audit(1785887731.977:1929): pid=10091 uid=0 auid=4294967295 ses=4294967295 subj=unconfined op=collect_data cause=failed(directio) comm="syz.0.981" name="file1" dev="loop0" ino=10 res=0 errno=0
[  440.775876][ T6006] syz-executor: attempt to access beyond end of device
[  440.775876][ T6006] loop2: rw=2049, sector=45096, nr_sectors = 8 limit=40427
[  440.778807][   T33] audit: type=1800 audit(1785887731.977:1930): pid=10091 uid=0 auid=4294967295 ses=4294967295 subj=unconfined op=collect_data cause=failed(directio) comm="syz.0.981" name="file1" dev="loop0" ino=10 res=0 errno=0
[  440.782814][ T6006] CPU: 0 UID: 0 PID: 6006 Comm: syz-executor Not tainted syzkaller #0 PREEMPT(full) 
[  440.782830][ T6006] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
[  440.782839][ T6006] Call Trace:
[  440.782845][ T6006]  <TASK>
[  440.782850][ T6006]  dump_stack_lvl+0xe8/0x150
[  440.782874][ T6006]  f2fs_stop_checkpoint+0x3f6/0x5d0
[  440.782895][ T6006]  f2fs_write_end_io+0x124b/0x1710
[  440.782925][ T6006]  __submit_merged_bio+0x258/0x6a0
[  440.782941][ T6006]  ? rcu_is_watching+0x15/0xb0
[  440.782962][ T6006]  __submit_merged_write_cond+0x3c9/0x4e0
[  440.782984][ T6006]  ? __pfx___submit_merged_write_cond+0x10/0x10
[  440.783016][ T6006]  f2fs_write_data_pages+0x2a27/0x36f0
[  440.783033][ T6006]  ? __lock_acquire+0x683/0x2cf0
[  440.783071][ T6006]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  440.783170][ T6006]  ? __pfx_hlock_conflict+0x10/0x10
[  440.783181][ T6006]  ? __bfs+0x153/0x290
[  440.783196][ T6006]  ? __pfx_hlock_conflict+0x10/0x10
[  440.783220][ T6006]  ? lockdep_unlock+0x5d/0xd0
[  440.783233][ T6006]  ? __lock_acquire+0x13e8/0x2cf0
[  440.783266][ T6006]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  440.783284][ T6006]  do_writepages+0x338/0x560
[  440.783309][ T6006]  ? do_raw_spin_unlock+0x4d/0x210
[  440.783326][ T6006]  filemap_fdatawrite+0x1e9/0x2f0
[  440.783345][ T6006]  ? __pfx_filemap_fdatawrite+0x10/0x10
[  440.783398][ T6006]  ? do_raw_spin_unlock+0x4d/0x210
[  440.783414][ T6006]  f2fs_sync_dirty_inodes+0x30e/0x830
[  440.783443][ T6006]  f2fs_write_checkpoint+0xa3d/0x2710
[  440.783484][ T6006]  ? __pfx_f2fs_write_checkpoint+0x10/0x10
[  440.783535][ T6006]  kill_f2fs_super+0x2dd/0x700
[  440.783560][ T6006]  ? __pfx_kill_f2fs_super+0x10/0x10
[  440.783585][ T6006]  ? call_rcu+0x64b/0x8b0
[  440.783597][ T6006]  ? lockdep_hardirqs_on+0x7a/0x110
[  440.783621][ T6006]  deactivate_locked_super+0xbc/0x110
[  440.783639][ T6006]  cleanup_mnt+0x3d3/0x460
[  440.783656][ T6006]  task_work_run+0x1d9/0x270
[  440.783677][ T6006]  ? __pfx_task_work_run+0x10/0x10
[  440.783700][ T6006]  exit_to_user_mode_loop+0x1fa/0x730
[  440.783716][ T6006]  ? rcu_is_watching+0x15/0xb0
[  440.783733][ T6006]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  440.783748][ T6006]  do_syscall_64+0x353/0x580
[  440.783761][ T6006]  ? trace_irq_disable+0x3b/0x140
[  440.783780][ T6006]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  440.783792][ T6006] RIP: 0033:0x7fe55f39f257
[  440.783806][ T6006] 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
[  440.783817][ T6006] RSP: 002b:00007ffd634636d8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
[  440.783830][ T6006] RAX: 0000000000000000 RBX: 00007fe55f43445c RCX: 00007fe55f39f257
[  440.783840][ T6006] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffd63463790
[  440.783847][ T6006] RBP: 00007ffd63463790 R08: 00007ffd63464790 R09: 00000000ffffffff
[  440.783856][ T6006] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffd63464820
[  440.783863][ T6006] R13: 00007fe55f43445c R14: 000000000006b929 R15: 00007ffd63464860
[  440.783885][ T6006]  </TASK>
[  440.798865][ T6006] F2FS-fs (loop2): Stopped filesystem due to reason: 3
[  440.821787][T10091] syz.0.981: attempt to access beyond end of device
[  440.821787][T10091] loop0: rw=2049, sector=53248, nr_sectors = 976 limit=40427
[  440.876076][T10096] syz.0.981: attempt to access beyond end of device
[  440.876076][T10096] loop0: rw=8423425, sector=54224, nr_sectors = 8 limit=40427
[  440.957089][ T6001] syz-executor: attempt to access beyond end of device
[  440.957089][ T6001] loop0: rw=2049, sector=45096, nr_sectors = 8 limit=40427
[  440.980161][ T6001] CPU: 0 UID: 0 PID: 6001 Comm: syz-executor Not tainted syzkaller #0 PREEMPT(full) 
[  440.980174][ T6001] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
[  440.980179][ T6001] Call Trace:
[  440.980183][ T6001]  <TASK>
[  440.980187][ T6001]  dump_stack_lvl+0xe8/0x150
[  440.980202][ T6001]  f2fs_stop_checkpoint+0x3f6/0x5d0
[  440.980213][ T6001]  f2fs_write_end_io+0x124b/0x1710
[  440.980230][ T6001]  __submit_merged_bio+0x258/0x6a0
[  440.980238][ T6001]  ? rcu_is_watching+0x15/0xb0
[  440.980250][ T6001]  __submit_merged_write_cond+0x3c9/0x4e0
[  440.980262][ T6001]  ? __pfx___submit_merged_write_cond+0x10/0x10
[  440.980278][ T6001]  f2fs_write_data_pages+0x2a27/0x36f0
[  440.980299][ T6001]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  440.980323][ T6001]  ? __pfx_hlock_conflict+0x10/0x10
[  440.980329][ T6001]  ? __bfs+0x153/0x290
[  440.980337][ T6001]  ? __pfx_hlock_conflict+0x10/0x10
[  440.980349][ T6001]  ? lockdep_unlock+0x5d/0xd0
[  440.980357][ T6001]  ? __lock_acquire+0x13e8/0x2cf0
[  440.980374][ T6001]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  440.980384][ T6001]  do_writepages+0x338/0x560
[  440.980397][ T6001]  ? do_raw_spin_unlock+0x4d/0x210
[  440.980407][ T6001]  filemap_fdatawrite+0x1e9/0x2f0
[  440.980418][ T6001]  ? __pfx_filemap_fdatawrite+0x10/0x10
[  440.980448][ T6001]  ? do_raw_spin_unlock+0x4d/0x210
[  440.980457][ T6001]  f2fs_sync_dirty_inodes+0x30e/0x830
[  440.980472][ T6001]  f2fs_write_checkpoint+0xa3d/0x2710
[  440.980492][ T6001]  ? __pfx_f2fs_write_checkpoint+0x10/0x10
[  440.980519][ T6001]  kill_f2fs_super+0x2dd/0x700
[  440.980532][ T6001]  ? __pfx_kill_f2fs_super+0x10/0x10
[  440.980545][ T6001]  ? call_rcu+0x64b/0x8b0
[  440.980552][ T6001]  ? lockdep_hardirqs_on+0x7a/0x110
[  440.980564][ T6001]  deactivate_locked_super+0xbc/0x110
[  440.980575][ T6001]  cleanup_mnt+0x3d3/0x460
[  440.980584][ T6001]  task_work_run+0x1d9/0x270
[  440.980596][ T6001]  ? __pfx_task_work_run+0x10/0x10
[  440.980609][ T6001]  exit_to_user_mode_loop+0x1fa/0x730
[  440.980618][ T6001]  ? rcu_is_watching+0x15/0xb0
[  440.980629][ T6001]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  440.980636][ T6001]  do_syscall_64+0x353/0x580
[  440.980644][ T6001]  ? trace_irq_disable+0x3b/0x140
[  440.980655][ T6001]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  440.980662][ T6001] RIP: 0033:0x7f319199f257
[  440.980670][ T6001] 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
[  440.980676][ T6001] RSP: 002b:00007fff67960bb8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
[  440.980685][ T6001] RAX: 0000000000000000 RBX: 00007f3191a3445c RCX: 00007f319199f257
[  440.980690][ T6001] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007fff67960c70
[  440.980695][ T6001] RBP: 00007fff67960c70 R08: 00007fff67961c70 R09: 00000000ffffffff
[  440.980699][ T6001] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fff67961d00
[  440.980704][ T6001] R13: 00007f3191a3445c R14: 000000000006b9d4 R15: 00007fff67961d40
[  440.980715][ T6001]  </TASK>
[  440.980718][ T6001] F2FS-fs (loop0): Stopped filesystem due to reason: 3
2026/08/04 23:55:32 executed programs: 973
[  441.263784][T10098] loop1: detected capacity change from 0 to 40427
[  441.269578][T10098] F2FS-fs (loop1): Small segment_count (9 < 1 * 24)
[  441.301972][T10098] F2FS-fs (loop1): Can't find valid F2FS filesystem in 1th superblock
[  441.364083][T10098] F2FS-fs (loop1): f2fs_recover_fsync_data: recovery fsync data, check_only: 0
[  441.370770][T10098] F2FS-fs (loop1): Try to recover 1th superblock, ret: 0
[  441.373575][T10098] F2FS-fs (loop1): Mounted with checkpoint version = 48b305e5
[  441.381226][   T33] audit: type=1800 audit(1785887732.587:1931): pid=10098 uid=0 auid=4294967295 ses=4294967295 subj=unconfined op=collect_data cause=failed(directio) comm="syz.1.982" name="file1" dev="loop1" ino=10 res=0 errno=0
[  441.397488][   T33] audit: type=1800 audit(1785887732.597:1932): pid=10098 uid=0 auid=4294967295 ses=4294967295 subj=unconfined op=collect_data cause=failed(directio) comm="syz.1.982" name="file1" dev="loop1" ino=10 res=0 errno=0
[  441.415984][ T6002] CPU: 1 UID: 0 PID: 6002 Comm: syz-executor Not tainted syzkaller #0 PREEMPT(full) 
[  441.416003][ T6002] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
[  441.416011][ T6002] Call Trace:
[  441.416016][ T6002]  <TASK>
[  441.416022][ T6002]  dump_stack_lvl+0xe8/0x150
[  441.416043][ T6002]  f2fs_stop_checkpoint+0x3f6/0x5d0
[  441.416062][ T6002]  f2fs_write_end_io+0x124b/0x1710
[  441.416089][ T6002]  __submit_merged_bio+0x258/0x6a0
[  441.416133][ T6002]  ? rcu_is_watching+0x15/0xb0
[  441.416153][ T6002]  __submit_merged_write_cond+0x3c9/0x4e0
[  441.416172][ T6002]  ? __pfx___submit_merged_write_cond+0x10/0x10
[  441.416197][ T6002]  f2fs_write_data_pages+0x2a27/0x36f0
[  441.416249][ T6002]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  441.416290][ T6002]  ? __pfx_hlock_conflict+0x10/0x10
[  441.416299][ T6002]  ? __bfs+0x153/0x290
[  441.416312][ T6002]  ? __pfx_hlock_conflict+0x10/0x10
[  441.416334][ T6002]  ? lockdep_unlock+0x5d/0xd0
[  441.416347][ T6002]  ? __lock_acquire+0x13e8/0x2cf0
[  441.416379][ T6002]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  441.416397][ T6002]  do_writepages+0x338/0x560
[  441.416425][ T6002]  ? do_raw_spin_unlock+0x4d/0x210
[  441.416442][ T6002]  filemap_fdatawrite+0x1e9/0x2f0
[  441.416461][ T6002]  ? __pfx_filemap_fdatawrite+0x10/0x10
[  441.416505][ T6002]  ? do_raw_spin_unlock+0x4d/0x210
[  441.416521][ T6002]  f2fs_sync_dirty_inodes+0x30e/0x830
[  441.416547][ T6002]  f2fs_write_checkpoint+0xa3d/0x2710
[  441.416582][ T6002]  ? __pfx_f2fs_write_checkpoint+0x10/0x10
[  441.416633][ T6002]  kill_f2fs_super+0x2dd/0x700
[  441.416656][ T6002]  ? __pfx_kill_f2fs_super+0x10/0x10
[  441.416681][ T6002]  ? call_rcu+0x64b/0x8b0
[  441.416692][ T6002]  ? lockdep_hardirqs_on+0x7a/0x110
[  441.416713][ T6002]  deactivate_locked_super+0xbc/0x110
[  441.416731][ T6002]  cleanup_mnt+0x3d3/0x460
[  441.416747][ T6002]  task_work_run+0x1d9/0x270
[  441.416767][ T6002]  ? __pfx_task_work_run+0x10/0x10
[  441.416791][ T6002]  exit_to_user_mode_loop+0x1fa/0x730
[  441.416807][ T6002]  ? rcu_is_watching+0x15/0xb0
[  441.416824][ T6002]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  441.416837][ T6002]  do_syscall_64+0x353/0x580
[  441.416850][ T6002]  ? trace_irq_disable+0x3b/0x140
[  441.416868][ T6002]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  441.416879][ T6002] RIP: 0033:0x7fbec519f257
[  441.416892][ T6002] 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
[  441.416902][ T6002] RSP: 002b:00007fff2e02d568 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
[  441.416916][ T6002] RAX: 0000000000000000 RBX: 00007fbec523445c RCX: 00007fbec519f257
[  441.416924][ T6002] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007fff2e02d620
[  441.416931][ T6002] RBP: 00007fff2e02d620 R08: 00007fff2e02e620 R09: 00000000ffffffff
[  441.416938][ T6002] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fff2e02e6b0
[  441.416946][ T6002] R13: 00007fbec523445c R14: 000000000006bbad R15: 00007fff2e02e6f0
[  441.416965][ T6002]  </TASK>
[  441.417902][ T6002] F2FS-fs (loop1): Stopped filesystem due to reason: 3
[  441.535342][T10100] loop2: detected capacity change from 0 to 40427
[  441.565054][T10100] F2FS-fs (loop2): Small segment_count (9 < 1 * 24)
[  441.570037][T10100] F2FS-fs (loop2): Can't find valid F2FS filesystem in 1th superblock
[  441.630703][T10104] loop0: detected capacity change from 0 to 40427
[  441.643449][T10100] F2FS-fs (loop2): f2fs_recover_fsync_data: recovery fsync data, check_only: 0
[  441.647657][T10104] F2FS-fs (loop0): Small segment_count (9 < 1 * 24)
[  441.658239][T10104] F2FS-fs (loop0): Can't find valid F2FS filesystem in 1th superblock
[  441.664026][T10100] F2FS-fs (loop2): Try to recover 1th superblock, ret: 0
[  441.669960][T10100] F2FS-fs (loop2): Mounted with checkpoint version = 48b305e5
[  441.701022][   T33] audit: type=1800 audit(1785887732.907:1933): pid=10100 uid=0 auid=4294967295 ses=4294967295 subj=unconfined op=collect_data cause=failed(directio) comm="syz.2.983" name="file1" dev="loop2" ino=10 res=0 errno=0
[  441.722174][   T33] audit: type=1800 audit(1785887732.917:1934): pid=10100 uid=0 auid=4294967295 ses=4294967295 subj=unconfined op=collect_data cause=failed(directio) comm="syz.2.983" name="file1" dev="loop2" ino=10 res=0 errno=0
[  441.751470][ T6006] CPU: 0 UID: 0 PID: 6006 Comm: syz-executor Not tainted syzkaller #0 PREEMPT(full) 
[  441.751492][ T6006] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
[  441.751499][ T6006] Call Trace:
[  441.751505][ T6006]  <TASK>
[  441.751510][ T6006]  dump_stack_lvl+0xe8/0x150
[  441.751531][ T6006]  f2fs_stop_checkpoint+0x3f6/0x5d0
[  441.751550][ T6006]  f2fs_write_end_io+0x124b/0x1710
[  441.751579][ T6006]  __submit_merged_bio+0x258/0x6a0
[  441.751591][ T6006]  ? rcu_is_watching+0x15/0xb0
[  441.751611][ T6006]  __submit_merged_write_cond+0x3c9/0x4e0
[  441.751631][ T6006]  ? __pfx___submit_merged_write_cond+0x10/0x10
[  441.751662][ T6006]  f2fs_write_data_pages+0x2a27/0x36f0
[  441.751698][ T6006]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  441.751742][ T6006]  ? __pfx_hlock_conflict+0x10/0x10
[  441.751753][ T6006]  ? __bfs+0x153/0x290
[  441.751790][ T6006]  ? __pfx_hlock_conflict+0x10/0x10
[  441.751814][ T6006]  ? lockdep_unlock+0x5d/0xd0
[  441.751826][ T6006]  ? __lock_acquire+0x13e8/0x2cf0
[  441.751860][ T6006]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  441.751877][ T6006]  do_writepages+0x338/0x560
[  441.751900][ T6006]  ? do_raw_spin_unlock+0x4d/0x210
[  441.751917][ T6006]  filemap_fdatawrite+0x1e9/0x2f0
[  441.751935][ T6006]  ? __pfx_filemap_fdatawrite+0x10/0x10
[  441.751983][ T6006]  ? do_raw_spin_unlock+0x4d/0x210
[  441.752000][ T6006]  f2fs_sync_dirty_inodes+0x30e/0x830
[  441.752027][ T6006]  f2fs_write_checkpoint+0xa3d/0x2710
[  441.752068][ T6006]  ? __pfx_f2fs_write_checkpoint+0x10/0x10
[  441.752150][ T6006]  kill_f2fs_super+0x2dd/0x700
[  441.752175][ T6006]  ? __pfx_kill_f2fs_super+0x10/0x10
[  441.752201][ T6006]  ? call_rcu+0x64b/0x8b0
[  441.752212][ T6006]  ? lockdep_hardirqs_on+0x7a/0x110
[  441.752236][ T6006]  deactivate_locked_super+0xbc/0x110
[  441.752254][ T6006]  cleanup_mnt+0x3d3/0x460
[  441.752272][ T6006]  task_work_run+0x1d9/0x270
[  441.752289][ T6006]  ? __pfx_task_work_run+0x10/0x10
[  441.752312][ T6006]  exit_to_user_mode_loop+0x1fa/0x730
[  441.752326][ T6006]  ? rcu_is_watching+0x15/0xb0
[  441.752340][ T6006]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  441.752352][ T6006]  do_syscall_64+0x353/0x580
[  441.752364][ T6006]  ? trace_irq_disable+0x3b/0x140
[  441.752383][ T6006]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  441.752394][ T6006] RIP: 0033:0x7fe55f39f257
[  441.752409][ T6006] 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
[  441.752419][ T6006] RSP: 002b:00007ffd634636d8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
[  441.752440][ T6006] RAX: 0000000000000000 RBX: 00007fe55f43445c RCX: 00007fe55f39f257
[  441.752448][ T6006] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffd63463790
[  441.752456][ T6006] RBP: 00007ffd63463790 R08: 00007ffd63464790 R09: 00000000ffffffff
[  441.752464][ T6006] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffd63464820
[  441.752471][ T6006] R13: 00007fe55f43445c R14: 000000000006bcf4 R15: 00007ffd63464860
[  441.752493][ T6006]  </TASK>
[  441.806122][ T6006] F2FS-fs (loop2): Stopped filesystem due to reason: 3
[  441.891922][T10104] F2FS-fs (loop0): f2fs_recover_fsync_data: recovery fsync data, check_only: 0
[  441.902716][T10104] F2FS-fs (loop0): Try to recover 1th superblock, ret: 0
[  441.906454][T10104] F2FS-fs (loop0): Mounted with checkpoint version = 48b305e5
[  441.922801][ T6001] CPU: 0 UID: 0 PID: 6001 Comm: syz-executor Not tainted syzkaller #0 PREEMPT(full) 
[  441.922820][ T6001] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
[  441.922828][ T6001] Call Trace:
[  441.922834][ T6001]  <TASK>
[  441.922840][ T6001]  dump_stack_lvl+0xe8/0x150
[  441.922863][ T6001]  f2fs_stop_checkpoint+0x3f6/0x5d0
[  441.922882][ T6001]  f2fs_write_end_io+0x124b/0x1710
[  441.922911][ T6001]  __submit_merged_bio+0x258/0x6a0
[  441.922924][ T6001]  ? rcu_is_watching+0x15/0xb0
[  441.922945][ T6001]  __submit_merged_write_cond+0x3c9/0x4e0
[  441.922963][ T6001]  ? __pfx___submit_merged_write_cond+0x10/0x10
[  441.922988][ T6001]  f2fs_write_data_pages+0x2a27/0x36f0
[  441.923023][ T6001]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  441.923066][ T6001]  ? __pfx_hlock_conflict+0x10/0x10
[  441.923077][ T6001]  ? __bfs+0x153/0x290
[  441.923119][ T6001]  ? __pfx_hlock_conflict+0x10/0x10
[  441.923141][ T6001]  ? lockdep_unlock+0x5d/0xd0
[  441.923153][ T6001]  ? __lock_acquire+0x13e8/0x2cf0
[  441.923186][ T6001]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  441.923202][ T6001]  do_writepages+0x338/0x560
[  441.923225][ T6001]  ? do_raw_spin_unlock+0x4d/0x210
[  441.923240][ T6001]  filemap_fdatawrite+0x1e9/0x2f0
[  441.923259][ T6001]  ? __pfx_filemap_fdatawrite+0x10/0x10
[  441.923320][ T6001]  ? do_raw_spin_unlock+0x4d/0x210
[  441.923338][ T6001]  f2fs_sync_dirty_inodes+0x30e/0x830
[  441.923365][ T6001]  f2fs_write_checkpoint+0xa3d/0x2710
[  441.923402][ T6001]  ? __pfx_f2fs_write_checkpoint+0x10/0x10
[  441.923458][ T6001]  kill_f2fs_super+0x2dd/0x700
[  441.923481][ T6001]  ? __pfx_kill_f2fs_super+0x10/0x10
[  441.923505][ T6001]  ? call_rcu+0x64b/0x8b0
[  441.923515][ T6001]  ? lockdep_hardirqs_on+0x7a/0x110
[  441.923538][ T6001]  deactivate_locked_super+0xbc/0x110
[  441.923556][ T6001]  cleanup_mnt+0x3d3/0x460
[  441.923571][ T6001]  task_work_run+0x1d9/0x270
[  441.923590][ T6001]  ? __pfx_task_work_run+0x10/0x10
[  441.923613][ T6001]  exit_to_user_mode_loop+0x1fa/0x730
[  441.923628][ T6001]  ? rcu_is_watching+0x15/0xb0
[  441.923644][ T6001]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  441.923657][ T6001]  do_syscall_64+0x353/0x580
[  441.923669][ T6001]  ? trace_irq_disable+0x3b/0x140
[  441.923687][ T6001]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  441.923699][ T6001] RIP: 0033:0x7f319199f257
[  441.923710][ T6001] 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
[  441.923720][ T6001] RSP: 002b:00007fff67960bb8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
[  441.923734][ T6001] RAX: 0000000000000000 RBX: 00007f3191a3445c RCX: 00007f319199f257
[  441.923742][ T6001] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007fff67960c70
[  441.923749][ T6001] RBP: 00007fff67960c70 R08: 00007fff67961c70 R09: 00000000ffffffff
[  441.923757][ T6001] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fff67961d00
[  441.923764][ T6001] R13: 00007f3191a3445c R14: 000000000006bda5 R15: 00007fff67961d40
[  441.923784][ T6001]  </TASK>
[  442.115423][ T6001] F2FS-fs (loop0): Stopped filesystem due to reason: 3
[  442.239505][T10110] F2FS-fs (loop1): Small segment_count (9 < 1 * 24)
[  442.241660][T10110] F2FS-fs (loop1): Can't find valid F2FS filesystem in 1th superblock
[  442.346207][T10112] F2FS-fs (loop2): Small segment_count (9 < 1 * 24)
[  442.347993][T10110] F2FS-fs (loop1): f2fs_recover_fsync_data: recovery fsync data, check_only: 0
[  442.359525][T10112] F2FS-fs (loop2): Can't find valid F2FS filesystem in 1th superblock
[  442.360717][T10110] F2FS-fs (loop1): Try to recover 1th superblock, ret: 0
[  442.374687][T10110] F2FS-fs (loop1): Mounted with checkpoint version = 48b305e5
[  442.417879][ T6002] CPU: 0 UID: 0 PID: 6002 Comm: syz-executor Not tainted syzkaller #0 PREEMPT(full) 
[  442.417901][ T6002] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
[  442.417908][ T6002] Call Trace:
[  442.417913][ T6002]  <TASK>
[  442.417918][ T6002]  dump_stack_lvl+0xe8/0x150
[  442.417943][ T6002]  f2fs_stop_checkpoint+0x3f6/0x5d0
[  442.417962][ T6002]  f2fs_write_end_io+0x124b/0x1710
[  442.417989][ T6002]  __submit_merged_bio+0x258/0x6a0
[  442.418003][ T6002]  ? rcu_is_watching+0x15/0xb0
[  442.418024][ T6002]  __submit_merged_write_cond+0x3c9/0x4e0
[  442.418042][ T6002]  ? __pfx___submit_merged_write_cond+0x10/0x10
[  442.418070][ T6002]  f2fs_write_data_pages+0x2a27/0x36f0
[  442.418115][ T6002]  ? __lock_acquire+0x683/0x2cf0
[  442.418149][ T6002]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  442.418190][ T6002]  ? __pfx_hlock_conflict+0x10/0x10
[  442.418201][ T6002]  ? __bfs+0x153/0x290
[  442.418213][ T6002]  ? __pfx_hlock_conflict+0x10/0x10
[  442.418235][ T6002]  ? lockdep_unlock+0x5d/0xd0
[  442.418245][ T6002]  ? __lock_acquire+0x13e8/0x2cf0
[  442.418274][ T6002]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  442.418292][ T6002]  do_writepages+0x338/0x560
[  442.418313][ T6002]  ? do_raw_spin_unlock+0x4d/0x210
[  442.418328][ T6002]  filemap_fdatawrite+0x1e9/0x2f0
[  442.418345][ T6002]  ? __pfx_filemap_fdatawrite+0x10/0x10
[  442.418385][ T6002]  ? do_raw_spin_unlock+0x4d/0x210
[  442.418400][ T6002]  f2fs_sync_dirty_inodes+0x30e/0x830
[  442.418431][ T6002]  f2fs_write_checkpoint+0xa3d/0x2710
[  442.418467][ T6002]  ? __pfx_f2fs_write_checkpoint+0x10/0x10
[  442.418513][ T6002]  kill_f2fs_super+0x2dd/0x700
[  442.418535][ T6002]  ? __pfx_kill_f2fs_super+0x10/0x10
[  442.418557][ T6002]  ? call_rcu+0x64b/0x8b0
[  442.418568][ T6002]  ? lockdep_hardirqs_on+0x7a/0x110
[  442.418588][ T6002]  deactivate_locked_super+0xbc/0x110
[  442.418606][ T6002]  cleanup_mnt+0x3d3/0x460
[  442.418621][ T6002]  task_work_run+0x1d9/0x270
[  442.418640][ T6002]  ? __pfx_task_work_run+0x10/0x10
[  442.418662][ T6002]  exit_to_user_mode_loop+0x1fa/0x730
[  442.418675][ T6002]  ? rcu_is_watching+0x15/0xb0
[  442.418692][ T6002]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  442.418704][ T6002]  do_syscall_64+0x353/0x580
[  442.418717][ T6002]  ? trace_irq_disable+0x3b/0x140
[  442.418734][ T6002]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  442.418744][ T6002] RIP: 0033:0x7fbec519f257
[  442.418758][ T6002] 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
[  442.418767][ T6002] RSP: 002b:00007fff2e02d568 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
[  442.418781][ T6002] RAX: 0000000000000000 RBX: 00007fbec523445c RCX: 00007fbec519f257
[  442.418808][ T6002] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007fff2e02d620
[  442.418816][ T6002] RBP: 00007fff2e02d620 R08: 00007fff2e02e620 R09: 00000000ffffffff
[  442.418823][ T6002] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fff2e02e6b0
[  442.418830][ T6002] R13: 00007fbec523445c R14: 000000000006bf93 R15: 00007fff2e02e6f0
[  442.418848][ T6002]  </TASK>
[  442.544115][ T6002] F2FS-fs (loop1): Stopped filesystem due to reason: 3
[  442.678664][T10112] F2FS-fs (loop2): f2fs_recover_fsync_data: recovery fsync data, check_only: 0
[  442.691770][T10112] F2FS-fs (loop2): Try to recover 1th superblock, ret: 0
[  442.705063][T10112] F2FS-fs (loop2): Mounted with checkpoint version = 48b305e5
[  442.770687][ T6006] CPU: 1 UID: 0 PID: 6006 Comm: syz-executor Not tainted syzkaller #0 PREEMPT(full) 
[  442.770709][ T6006] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
[  442.770717][ T6006] Call Trace:
[  442.770724][ T6006]  <TASK>
[  442.770730][ T6006]  dump_stack_lvl+0xe8/0x150
[  442.770754][ T6006]  f2fs_stop_checkpoint+0x3f6/0x5d0
[  442.770773][ T6006]  f2fs_write_end_io+0x124b/0x1710
[  442.770803][ T6006]  __submit_merged_bio+0x258/0x6a0
[  442.770818][ T6006]  ? rcu_is_watching+0x15/0xb0
[  442.770839][ T6006]  __submit_merged_write_cond+0x3c9/0x4e0
[  442.770860][ T6006]  ? __pfx___submit_merged_write_cond+0x10/0x10
[  442.770897][ T6006]  f2fs_write_data_pages+0x2a27/0x36f0
[  442.770935][ T6006]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  442.770960][ T6006]  ? lockdep_unlock+0x5d/0xd0
[  442.770974][ T6006]  ? __lock_acquire+0x13e8/0x2cf0
[  442.771005][ T6006]  ? ktime_get+0x45/0x220
[  442.771018][ T6006]  ? lock_acquire+0x106/0x350
[  442.771053][ T6006]  ? __pfx_hlock_conflict+0x10/0x10
[  442.771065][ T6006]  ? __bfs+0x153/0x290
[  442.771106][ T6006]  ? __pfx_hlock_conflict+0x10/0x10
[  442.771130][ T6006]  ? lockdep_unlock+0x5d/0xd0
[  442.771142][ T6006]  ? __lock_acquire+0x13e8/0x2cf0
[  442.771172][ T6006]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  442.771190][ T6006]  do_writepages+0x338/0x560
[  442.771213][ T6006]  ? do_raw_spin_unlock+0x4d/0x210
[  442.771230][ T6006]  filemap_fdatawrite+0x1e9/0x2f0
[  442.771249][ T6006]  ? __pfx_filemap_fdatawrite+0x10/0x10
[  442.771291][ T6006]  ? do_raw_spin_unlock+0x4d/0x210
[  442.771308][ T6006]  f2fs_sync_dirty_inodes+0x30e/0x830
[  442.771334][ T6006]  f2fs_write_checkpoint+0xa3d/0x2710
[  442.771372][ T6006]  ? __pfx_f2fs_write_checkpoint+0x10/0x10
[  442.771420][ T6006]  kill_f2fs_super+0x2dd/0x700
[  442.771443][ T6006]  ? __pfx_kill_f2fs_super+0x10/0x10
[  442.771467][ T6006]  ? call_rcu+0x64b/0x8b0
[  442.771479][ T6006]  ? lockdep_hardirqs_on+0x7a/0x110
[  442.771501][ T6006]  deactivate_locked_super+0xbc/0x110
[  442.771520][ T6006]  cleanup_mnt+0x3d3/0x460
[  442.771536][ T6006]  task_work_run+0x1d9/0x270
[  442.771555][ T6006]  ? __pfx_task_work_run+0x10/0x10
[  442.771578][ T6006]  exit_to_user_mode_loop+0x1fa/0x730
[  442.771593][ T6006]  ? rcu_is_watching+0x15/0xb0
[  442.771610][ T6006]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  442.771623][ T6006]  do_syscall_64+0x353/0x580
[  442.771638][ T6006]  ? trace_irq_disable+0x3b/0x140
[  442.771655][ T6006]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  442.771667][ T6006] RIP: 0033:0x7fe55f39f257
[  442.771680][ T6006] 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
[  442.771690][ T6006] RSP: 002b:00007ffd634636d8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
[  442.771705][ T6006] RAX: 0000000000000000 RBX: 00007fe55f43445c RCX: 00007fe55f39f257
[  442.771713][ T6006] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffd63463790
[  442.771720][ T6006] RBP: 00007ffd63463790 R08: 00007ffd63464790 R09: 00000000ffffffff
[  442.771729][ T6006] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffd63464820
[  442.771736][ T6006] R13: 00007fe55f43445c R14: 000000000006c0e1 R15: 00007ffd63464860
[  442.771756][ T6006]  </TASK>
[  442.774841][ T6006] F2FS-fs (loop2): Stopped filesystem due to reason: 3
[  442.946628][T10118] F2FS-fs (loop0): Small segment_count (9 < 1 * 24)
[  442.949401][T10118] F2FS-fs (loop0): Can't find valid F2FS filesystem in 1th superblock
[  443.024514][T10118] F2FS-fs (loop0): f2fs_recover_fsync_data: recovery fsync data, check_only: 0
[  443.039177][T10120] F2FS-fs (loop1): Small segment_count (9 < 1 * 24)
[  443.060865][T10118] F2FS-fs (loop0): Try to recover 1th superblock, ret: 0
[  443.065711][T10120] F2FS-fs (loop1): Can't find valid F2FS filesystem in 1th superblock
[  443.083355][T10118] F2FS-fs (loop0): Mounted with checkpoint version = 48b305e5
[  443.141648][ T6001] CPU: 1 UID: 0 PID: 6001 Comm: syz-executor Not tainted syzkaller #0 PREEMPT(full) 
[  443.141670][ T6001] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
[  443.141679][ T6001] Call Trace:
[  443.141685][ T6001]  <TASK>
[  443.141717][ T6001]  dump_stack_lvl+0xe8/0x150
[  443.141743][ T6001]  f2fs_stop_checkpoint+0x3f6/0x5d0
[  443.141764][ T6001]  f2fs_write_end_io+0x124b/0x1710
[  443.141796][ T6001]  __submit_merged_bio+0x258/0x6a0
[  443.141811][ T6001]  ? rcu_is_watching+0x15/0xb0
[  443.141833][ T6001]  __submit_merged_write_cond+0x3c9/0x4e0
[  443.141855][ T6001]  ? __pfx___submit_merged_write_cond+0x10/0x10
[  443.141886][ T6001]  f2fs_write_data_pages+0x2a27/0x36f0
[  443.141934][ T6001]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  443.141981][ T6001]  ? __pfx_hlock_conflict+0x10/0x10
[  443.141991][ T6001]  ? __bfs+0x153/0x290
[  443.142005][ T6001]  ? __pfx_hlock_conflict+0x10/0x10
[  443.142028][ T6001]  ? lockdep_unlock+0x5d/0xd0
[  443.142039][ T6001]  ? __lock_acquire+0x13e8/0x2cf0
[  443.142098][ T6001]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  443.142116][ T6001]  do_writepages+0x338/0x560
[  443.142140][ T6001]  ? do_raw_spin_unlock+0x4d/0x210
[  443.142155][ T6001]  filemap_fdatawrite+0x1e9/0x2f0
[  443.142174][ T6001]  ? __pfx_filemap_fdatawrite+0x10/0x10
[  443.142218][ T6001]  ? do_raw_spin_unlock+0x4d/0x210
[  443.142233][ T6001]  f2fs_sync_dirty_inodes+0x30e/0x830
[  443.142260][ T6001]  f2fs_write_checkpoint+0xa3d/0x2710
[  443.142298][ T6001]  ? __pfx_f2fs_write_checkpoint+0x10/0x10
[  443.142350][ T6001]  kill_f2fs_super+0x2dd/0x700
[  443.142370][ T6001]  ? __pfx_kill_f2fs_super+0x10/0x10
[  443.142394][ T6001]  ? call_rcu+0x64b/0x8b0
[  443.142405][ T6001]  ? lockdep_hardirqs_on+0x7a/0x110
[  443.142428][ T6001]  deactivate_locked_super+0xbc/0x110
[  443.142445][ T6001]  cleanup_mnt+0x3d3/0x460
[  443.142459][ T6001]  task_work_run+0x1d9/0x270
[  443.142478][ T6001]  ? __pfx_task_work_run+0x10/0x10
[  443.142501][ T6001]  exit_to_user_mode_loop+0x1fa/0x730
[  443.142516][ T6001]  ? rcu_is_watching+0x15/0xb0
[  443.142533][ T6001]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  443.142547][ T6001]  do_syscall_64+0x353/0x580
[  443.142560][ T6001]  ? trace_irq_disable+0x3b/0x140
[  443.142577][ T6001]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  443.142590][ T6001] RIP: 0033:0x7f319199f257
[  443.142602][ T6001] 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
[  443.142612][ T6001] RSP: 002b:00007fff67960bb8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
[  443.142626][ T6001] RAX: 0000000000000000 RBX: 00007f3191a3445c RCX: 00007f319199f257
[  443.142634][ T6001] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007fff67960c70
[  443.142641][ T6001] RBP: 00007fff67960c70 R08: 00007fff67961c70 R09: 00000000ffffffff
[  443.142649][ T6001] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fff67961d00
[  443.142657][ T6001] R13: 00007f3191a3445c R14: 000000000006c26a R15: 00007fff67961d40
[  443.142679][ T6001]  </TASK>
[  443.164879][T10120] F2FS-fs (loop1): f2fs_recover_fsync_data: recovery fsync data, check_only: 0
[  443.166313][ T6001] F2FS-fs (loop0): Stopped filesystem due to reason: 3
[  443.169832][T10120] F2FS-fs (loop1): Try to recover 1th superblock, ret: 0
[  443.276410][T10120] F2FS-fs (loop1): Mounted with checkpoint version = 48b305e5
[  443.299465][ T6002] CPU: 1 UID: 0 PID: 6002 Comm: syz-executor Not tainted syzkaller #0 PREEMPT(full) 
[  443.299479][ T6002] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
[  443.299484][ T6002] Call Trace:
[  443.299487][ T6002]  <TASK>
[  443.299491][ T6002]  dump_stack_lvl+0xe8/0x150
[  443.299506][ T6002]  f2fs_stop_checkpoint+0x3f6/0x5d0
[  443.299517][ T6002]  f2fs_write_end_io+0x124b/0x1710
[  443.299534][ T6002]  __submit_merged_bio+0x258/0x6a0
[  443.299542][ T6002]  ? rcu_is_watching+0x15/0xb0
[  443.299554][ T6002]  __submit_merged_write_cond+0x3c9/0x4e0
[  443.299566][ T6002]  ? __pfx___submit_merged_write_cond+0x10/0x10
[  443.299581][ T6002]  f2fs_write_data_pages+0x2a27/0x36f0
[  443.299603][ T6002]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  443.299626][ T6002]  ? __pfx_hlock_conflict+0x10/0x10
[  443.299633][ T6002]  ? __bfs+0x153/0x290
[  443.299641][ T6002]  ? __pfx_hlock_conflict+0x10/0x10
[  443.299653][ T6002]  ? lockdep_unlock+0x5d/0xd0
[  443.299661][ T6002]  ? __lock_acquire+0x13e8/0x2cf0
[  443.299679][ T6002]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  443.299688][ T6002]  do_writepages+0x338/0x560
[  443.299701][ T6002]  ? do_raw_spin_unlock+0x4d/0x210
[  443.299711][ T6002]  filemap_fdatawrite+0x1e9/0x2f0
[  443.299721][ T6002]  ? __pfx_filemap_fdatawrite+0x10/0x10
[  443.299744][ T6002]  ? do_raw_spin_unlock+0x4d/0x210
[  443.299753][ T6002]  f2fs_sync_dirty_inodes+0x30e/0x830
[  443.299768][ T6002]  f2fs_write_checkpoint+0xa3d/0x2710
[  443.299788][ T6002]  ? __pfx_f2fs_write_checkpoint+0x10/0x10
[  443.299815][ T6002]  kill_f2fs_super+0x2dd/0x700
[  443.299828][ T6002]  ? __pfx_kill_f2fs_super+0x10/0x10
[  443.299841][ T6002]  ? call_rcu+0x64b/0x8b0
[  443.299847][ T6002]  ? lockdep_hardirqs_on+0x7a/0x110
[  443.299860][ T6002]  deactivate_locked_super+0xbc/0x110
[  443.299871][ T6002]  cleanup_mnt+0x3d3/0x460
[  443.299880][ T6002]  task_work_run+0x1d9/0x270
[  443.299891][ T6002]  ? __pfx_task_work_run+0x10/0x10
[  443.299932][ T6002]  exit_to_user_mode_loop+0x1fa/0x730
[  443.299943][ T6002]  ? rcu_is_watching+0x15/0xb0
[  443.299953][ T6002]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  443.299961][ T6002]  do_syscall_64+0x353/0x580
[  443.299969][ T6002]  ? trace_irq_disable+0x3b/0x140
[  443.299979][ T6002]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  443.300003][ T6002] RIP: 0033:0x7fbec519f257
[  443.300011][ T6002] 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
[  443.300018][ T6002] RSP: 002b:00007fff2e02d568 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
[  443.300026][ T6002] RAX: 0000000000000000 RBX: 00007fbec523445c RCX: 00007fbec519f257
[  443.300031][ T6002] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007fff2e02d620
[  443.300036][ T6002] RBP: 00007fff2e02d620 R08: 00007fff2e02e620 R09: 00000000ffffffff
[  443.300041][ T6002] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fff2e02e6b0
[  443.300045][ T6002] R13: 00007fbec523445c R14: 000000000006c305 R15: 00007fff2e02e6f0
[  443.300056][ T6002]  </TASK>
[  443.300793][ T6002] F2FS-fs (loop1): Stopped filesystem due to reason: 3
[  443.500900][T10126] F2FS-fs (loop2): Small segment_count (9 < 1 * 24)
[  443.514748][T10126] F2FS-fs (loop2): Can't find valid F2FS filesystem in 1th superblock
[  443.580630][T10126] F2FS-fs (loop2): f2fs_recover_fsync_data: recovery fsync data, check_only: 0
[  443.606817][T10126] F2FS-fs (loop2): Try to recover 1th superblock, ret: 0
[  443.609661][T10126] F2FS-fs (loop2): Mounted with checkpoint version = 48b305e5
[  443.642625][ T6006] CPU: 0 UID: 0 PID: 6006 Comm: syz-executor Not tainted syzkaller #0 PREEMPT(full) 
[  443.642645][ T6006] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
[  443.642652][ T6006] Call Trace:
[  443.642657][ T6006]  <TASK>
[  443.642662][ T6006]  dump_stack_lvl+0xe8/0x150
[  443.642681][ T6006]  f2fs_stop_checkpoint+0x3f6/0x5d0
[  443.642696][ T6006]  f2fs_write_end_io+0x124b/0x1710
[  443.642719][ T6006]  __submit_merged_bio+0x258/0x6a0
[  443.642730][ T6006]  ? rcu_is_watching+0x15/0xb0
[  443.642746][ T6006]  __submit_merged_write_cond+0x3c9/0x4e0
[  443.642762][ T6006]  ? __pfx___submit_merged_write_cond+0x10/0x10
[  443.642785][ T6006]  f2fs_write_data_pages+0x2a27/0x36f0
[  443.642797][ T6006]  ? __lock_acquire+0x683/0x2cf0
[  443.642837][ T6006]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  443.642871][ T6006]  ? __pfx_hlock_conflict+0x10/0x10
[  443.642879][ T6006]  ? __bfs+0x153/0x290
[  443.642890][ T6006]  ? __pfx_hlock_conflict+0x10/0x10
[  443.642907][ T6006]  ? lockdep_unlock+0x5d/0xd0
[  443.642917][ T6006]  ? __lock_acquire+0x13e8/0x2cf0
[  443.642941][ T6006]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  443.642954][ T6006]  do_writepages+0x338/0x560
[  443.642971][ T6006]  ? do_raw_spin_unlock+0x4d/0x210
[  443.642983][ T6006]  filemap_fdatawrite+0x1e9/0x2f0
[  443.642998][ T6006]  ? __pfx_filemap_fdatawrite+0x10/0x10
[  443.643031][ T6006]  ? do_raw_spin_unlock+0x4d/0x210
[  443.643043][ T6006]  f2fs_sync_dirty_inodes+0x30e/0x830
[  443.643092][ T6006]  f2fs_write_checkpoint+0xa3d/0x2710
[  443.643123][ T6006]  ? __pfx_f2fs_write_checkpoint+0x10/0x10
[  443.643162][ T6006]  kill_f2fs_super+0x2dd/0x700
[  443.643179][ T6006]  ? __pfx_kill_f2fs_super+0x10/0x10
[  443.643197][ T6006]  ? call_rcu+0x64b/0x8b0
[  443.643205][ T6006]  ? lockdep_hardirqs_on+0x7a/0x110
[  443.643223][ T6006]  deactivate_locked_super+0xbc/0x110
[  443.643238][ T6006]  cleanup_mnt+0x3d3/0x460
[  443.643249][ T6006]  task_work_run+0x1d9/0x270
[  443.643264][ T6006]  ? __pfx_task_work_run+0x10/0x10
[  443.643282][ T6006]  exit_to_user_mode_loop+0x1fa/0x730
[  443.643293][ T6006]  ? rcu_is_watching+0x15/0xb0
[  443.643307][ T6006]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  443.643317][ T6006]  do_syscall_64+0x353/0x580
[  443.643328][ T6006]  ? trace_irq_disable+0x3b/0x140
[  443.643342][ T6006]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  443.643351][ T6006] RIP: 0033:0x7fe55f39f257
[  443.643361][ T6006] 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
[  443.643370][ T6006] RSP: 002b:00007ffd634636d8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
[  443.643381][ T6006] RAX: 0000000000000000 RBX: 00007fe55f43445c RCX: 00007fe55f39f257
[  443.643388][ T6006] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffd63463790
[  443.643394][ T6006] RBP: 00007ffd63463790 R08: 00007ffd63464790 R09: 00000000ffffffff
[  443.643400][ T6006] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffd63464820
[  443.643406][ T6006] R13: 00007fe55f43445c R14: 000000000006c465 R15: 00007ffd63464860
[  443.643421][ T6006]  </TASK>
[  443.915600][ T6006] F2FS-fs (loop2): Stopped filesystem due to reason: 3
[  443.929214][T10131] set_capacity_and_notify: 5 callbacks suppressed
[  443.931501][T10131] loop1: detected capacity change from 0 to 40427
[  443.943019][T10131] F2FS-fs (loop1): Small segment_count (9 < 1 * 24)
[  443.958328][T10131] F2FS-fs (loop1): Can't find valid F2FS filesystem in 1th superblock
[  444.040919][T10131] F2FS-fs (loop1): f2fs_recover_fsync_data: recovery fsync data, check_only: 0
[  444.055260][T10131] F2FS-fs (loop1): Try to recover 1th superblock, ret: 0
[  444.058682][T10131] F2FS-fs (loop1): Mounted with checkpoint version = 48b305e5
[  444.087355][T10132] loop0: detected capacity change from 0 to 40427
[  444.091738][ T6002] CPU: 1 UID: 0 PID: 6002 Comm: syz-executor Not tainted syzkaller #0 PREEMPT(full) 
[  444.091756][ T6002] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
[  444.091764][ T6002] Call Trace:
[  444.091770][ T6002]  <TASK>
[  444.091777][ T6002]  dump_stack_lvl+0xe8/0x150
[  444.091800][ T6002]  f2fs_stop_checkpoint+0x3f6/0x5d0
[  444.091828][ T6002]  f2fs_write_end_io+0x124b/0x1710
[  444.091860][ T6002]  __submit_merged_bio+0x258/0x6a0
[  444.091875][ T6002]  ? rcu_is_watching+0x15/0xb0
[  444.091897][ T6002]  __submit_merged_write_cond+0x3c9/0x4e0
[  444.091919][ T6002]  ? __pfx___submit_merged_write_cond+0x10/0x10
[  444.091948][ T6002]  f2fs_write_data_pages+0x2a27/0x36f0
[  444.091965][ T6002]  ? __lock_acquire+0x683/0x2cf0
[  444.092002][ T6002]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  444.092046][ T6002]  ? __pfx_hlock_conflict+0x10/0x10
[  444.092085][ T6002]  ? __bfs+0x153/0x290
[  444.092099][ T6002]  ? __pfx_hlock_conflict+0x10/0x10
[  444.092122][ T6002]  ? lockdep_unlock+0x5d/0xd0
[  444.092136][ T6002]  ? __lock_acquire+0x13e8/0x2cf0
[  444.092167][ T6002]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  444.092185][ T6002]  do_writepages+0x338/0x560
[  444.092209][ T6002]  ? do_raw_spin_unlock+0x4d/0x210
[  444.092225][ T6002]  filemap_fdatawrite+0x1e9/0x2f0
[  444.092263][ T6002]  ? __pfx_filemap_fdatawrite+0x10/0x10
[  444.092306][ T6002]  ? do_raw_spin_unlock+0x4d/0x210
[  444.092323][ T6002]  f2fs_sync_dirty_inodes+0x30e/0x830
[  444.092350][ T6002]  f2fs_write_checkpoint+0xa3d/0x2710
[  444.092387][ T6002]  ? __pfx_f2fs_write_checkpoint+0x10/0x10
[  444.092436][ T6002]  kill_f2fs_super+0x2dd/0x700
[  444.092459][ T6002]  ? __pfx_kill_f2fs_super+0x10/0x10
[  444.092484][ T6002]  ? call_rcu+0x64b/0x8b0
[  444.092496][ T6002]  ? lockdep_hardirqs_on+0x7a/0x110
[  444.092519][ T6002]  deactivate_locked_super+0xbc/0x110
[  444.092539][ T6002]  cleanup_mnt+0x3d3/0x460
[  444.092576][ T6002]  task_work_run+0x1d9/0x270
[  444.092596][ T6002]  ? __pfx_task_work_run+0x10/0x10
[  444.092618][ T6002]  exit_to_user_mode_loop+0x1fa/0x730
[  444.092634][ T6002]  ? rcu_is_watching+0x15/0xb0
[  444.092652][ T6002]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  444.092664][ T6002]  do_syscall_64+0x353/0x580
[  444.092679][ T6002]  ? trace_irq_disable+0x3b/0x140
[  444.092697][ T6002]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  444.092709][ T6002] RIP: 0033:0x7fbec519f257
[  444.092724][ T6002] 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
[  444.092733][ T6002] RSP: 002b:00007fff2e02d568 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
[  444.092747][ T6002] RAX: 0000000000000000 RBX: 00007fbec523445c RCX: 00007fbec519f257
[  444.092755][ T6002] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007fff2e02d620
[  444.092762][ T6002] RBP: 00007fff2e02d620 R08: 00007fff2e02e620 R09: 00000000ffffffff
[  444.092770][ T6002] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fff2e02e6b0
[  444.092779][ T6002] R13: 00007fbec523445c R14: 000000000006c618 R15: 00007fff2e02e6f0
[  444.092799][ T6002]  </TASK>
[  444.108349][T10132] F2FS-fs (loop0): Small segment_count (9 < 1 * 24)
[  444.109013][ T6002] F2FS-fs (loop1): Stopped filesystem due to reason: 3
[  444.122105][T10132] F2FS-fs (loop0): Can't find valid F2FS filesystem in 1th superblock
[  444.380755][T10132] F2FS-fs (loop0): f2fs_recover_fsync_data: recovery fsync data, check_only: 0
[  444.398123][T10132] F2FS-fs (loop0): Try to recover 1th superblock, ret: 0
[  444.401179][T10132] F2FS-fs (loop0): Mounted with checkpoint version = 48b305e5
[  444.435379][ T6001] CPU: 1 UID: 0 PID: 6001 Comm: syz-executor Not tainted syzkaller #0 PREEMPT(full) 
[  444.435402][ T6001] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
[  444.435409][ T6001] Call Trace:
[  444.435416][ T6001]  <TASK>
[  444.435421][ T6001]  dump_stack_lvl+0xe8/0x150
[  444.435444][ T6001]  f2fs_stop_checkpoint+0x3f6/0x5d0
[  444.435464][ T6001]  f2fs_write_end_io+0x124b/0x1710
[  444.435494][ T6001]  __submit_merged_bio+0x258/0x6a0
[  444.435508][ T6001]  ? rcu_is_watching+0x15/0xb0
[  444.435530][ T6001]  __submit_merged_write_cond+0x3c9/0x4e0
[  444.435551][ T6001]  ? __pfx___submit_merged_write_cond+0x10/0x10
[  444.435581][ T6001]  f2fs_write_data_pages+0x2a27/0x36f0
[  444.435597][ T6001]  ? __lock_acquire+0x683/0x2cf0
[  444.435634][ T6001]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  444.435679][ T6001]  ? __pfx_hlock_conflict+0x10/0x10
[  444.435690][ T6001]  ? __bfs+0x153/0x290
[  444.435704][ T6001]  ? __pfx_hlock_conflict+0x10/0x10
[  444.435726][ T6001]  ? lockdep_unlock+0x5d/0xd0
[  444.435739][ T6001]  ? __lock_acquire+0x13e8/0x2cf0
[  444.435772][ T6001]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  444.435789][ T6001]  do_writepages+0x338/0x560
[  444.435810][ T6001]  ? do_raw_spin_unlock+0x4d/0x210
[  444.435835][ T6001]  filemap_fdatawrite+0x1e9/0x2f0
[  444.435854][ T6001]  ? __pfx_filemap_fdatawrite+0x10/0x10
[  444.435897][ T6001]  ? do_raw_spin_unlock+0x4d/0x210
[  444.435913][ T6001]  f2fs_sync_dirty_inodes+0x30e/0x830
[  444.435941][ T6001]  f2fs_write_checkpoint+0xa3d/0x2710
[  444.435979][ T6001]  ? __pfx_f2fs_write_checkpoint+0x10/0x10
[  444.436082][ T6001]  kill_f2fs_super+0x2dd/0x700
[  444.436107][ T6001]  ? __pfx_kill_f2fs_super+0x10/0x10
[  444.436133][ T6001]  ? call_rcu+0x64b/0x8b0
[  444.436144][ T6001]  ? lockdep_hardirqs_on+0x7a/0x110
[  444.436166][ T6001]  deactivate_locked_super+0xbc/0x110
[  444.436183][ T6001]  cleanup_mnt+0x3d3/0x460
[  444.436199][ T6001]  task_work_run+0x1d9/0x270
[  444.436216][ T6001]  ? __pfx_task_work_run+0x10/0x10
[  444.436237][ T6001]  exit_to_user_mode_loop+0x1fa/0x730
[  444.436252][ T6001]  ? rcu_is_watching+0x15/0xb0
[  444.436269][ T6001]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  444.436282][ T6001]  do_syscall_64+0x353/0x580
[  444.436295][ T6001]  ? trace_irq_disable+0x3b/0x140
[  444.436313][ T6001]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  444.436323][ T6001] RIP: 0033:0x7f319199f257
[  444.436335][ T6001] 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
[  444.436346][ T6001] RSP: 002b:00007fff67960bb8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
[  444.436360][ T6001] RAX: 0000000000000000 RBX: 00007f3191a3445c RCX: 00007f319199f257
[  444.436368][ T6001] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007fff67960c70
[  444.436376][ T6001] RBP: 00007fff67960c70 R08: 00007fff67961c70 R09: 00000000ffffffff
[  444.436384][ T6001] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fff67961d00
[  444.436391][ T6001] R13: 00007f3191a3445c R14: 000000000006c77a R15: 00007fff67961d40
[  444.436411][ T6001]  </TASK>
[  444.594977][ T6001] F2FS-fs (loop0): Stopped filesystem due to reason: 3
[  444.689113][T10138] loop2: detected capacity change from 0 to 40427
[  444.701493][T10138] F2FS-fs (loop2): Small segment_count (9 < 1 * 24)
[  444.704079][T10138] F2FS-fs (loop2): Can't find valid F2FS filesystem in 1th superblock
[  444.768128][T10138] F2FS-fs (loop2): f2fs_recover_fsync_data: recovery fsync data, check_only: 0
[  444.775603][T10138] F2FS-fs (loop2): Try to recover 1th superblock, ret: 0
[  444.778463][T10138] F2FS-fs (loop2): Mounted with checkpoint version = 48b305e5
[  444.795131][ T6006] CPU: 0 UID: 0 PID: 6006 Comm: syz-executor Not tainted syzkaller #0 PREEMPT(full) 
[  444.795169][ T6006] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
[  444.795177][ T6006] Call Trace:
[  444.795183][ T6006]  <TASK>
[  444.795188][ T6006]  dump_stack_lvl+0xe8/0x150
[  444.795211][ T6006]  f2fs_stop_checkpoint+0x3f6/0x5d0
[  444.795231][ T6006]  f2fs_write_end_io+0x124b/0x1710
[  444.795260][ T6006]  __submit_merged_bio+0x258/0x6a0
[  444.795274][ T6006]  ? rcu_is_watching+0x15/0xb0
[  444.795302][ T6006]  __submit_merged_write_cond+0x3c9/0x4e0
[  444.795322][ T6006]  ? __pfx___submit_merged_write_cond+0x10/0x10
[  444.795351][ T6006]  f2fs_write_data_pages+0x2a27/0x36f0
[  444.795368][ T6006]  ? __lock_acquire+0x683/0x2cf0
[  444.795406][ T6006]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  444.795452][ T6006]  ? __pfx_hlock_conflict+0x10/0x10
[  444.795463][ T6006]  ? __bfs+0x153/0x290
[  444.795477][ T6006]  ? __pfx_hlock_conflict+0x10/0x10
[  444.795500][ T6006]  ? lockdep_unlock+0x5d/0xd0
[  444.795513][ T6006]  ? __lock_acquire+0x13e8/0x2cf0
[  444.795544][ T6006]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  444.795560][ T6006]  do_writepages+0x338/0x560
[  444.795583][ T6006]  ? do_raw_spin_unlock+0x4d/0x210
[  444.795599][ T6006]  filemap_fdatawrite+0x1e9/0x2f0
[  444.795618][ T6006]  ? __pfx_filemap_fdatawrite+0x10/0x10
[  444.795660][ T6006]  ? do_raw_spin_unlock+0x4d/0x210
[  444.795676][ T6006]  f2fs_sync_dirty_inodes+0x30e/0x830
[  444.795702][ T6006]  f2fs_write_checkpoint+0xa3d/0x2710
[  444.795738][ T6006]  ? __pfx_f2fs_write_checkpoint+0x10/0x10
[  444.795788][ T6006]  kill_f2fs_super+0x2dd/0x700
[  444.795811][ T6006]  ? __pfx_kill_f2fs_super+0x10/0x10
[  444.795835][ T6006]  ? call_rcu+0x64b/0x8b0
[  444.795846][ T6006]  ? lockdep_hardirqs_on+0x7a/0x110
[  444.795869][ T6006]  deactivate_locked_super+0xbc/0x110
[  444.795886][ T6006]  cleanup_mnt+0x3d3/0x460
[  444.795902][ T6006]  task_work_run+0x1d9/0x270
[  444.795921][ T6006]  ? __pfx_task_work_run+0x10/0x10
[  444.795944][ T6006]  exit_to_user_mode_loop+0x1fa/0x730
[  444.795960][ T6006]  ? rcu_is_watching+0x15/0xb0
[  444.795979][ T6006]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  444.795992][ T6006]  do_syscall_64+0x353/0x580
[  444.796006][ T6006]  ? trace_irq_disable+0x3b/0x140
[  444.796025][ T6006]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  444.796038][ T6006] RIP: 0033:0x7fe55f39f257
[  444.796079][ T6006] 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
[  444.796090][ T6006] RSP: 002b:00007ffd634636d8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
[  444.796105][ T6006] RAX: 0000000000000000 RBX: 00007fe55f43445c RCX: 00007fe55f39f257
[  444.796114][ T6006] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffd63463790
[  444.796121][ T6006] RBP: 00007ffd63463790 R08: 00007ffd63464790 R09: 00000000ffffffff
[  444.796129][ T6006] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffd63464820
[  444.796135][ T6006] R13: 00007fe55f43445c R14: 000000000006c8e7 R15: 00007ffd63464860
[  444.796154][ T6006]  </TASK>
[  444.797618][ T6006] F2FS-fs (loop2): Stopped filesystem due to reason: 3
[  444.907678][T10140] loop1: detected capacity change from 0 to 40427
[  445.015320][T10140] F2FS-fs (loop1): Small segment_count (9 < 1 * 24)
[  445.025327][T10140] F2FS-fs (loop1): Can't find valid F2FS filesystem in 1th superblock
[  445.108181][T10140] F2FS-fs (loop1): f2fs_recover_fsync_data: recovery fsync data, check_only: 0
[  445.123671][T10140] F2FS-fs (loop1): Try to recover 1th superblock, ret: 0
[  445.134245][T10140] F2FS-fs (loop1): Mounted with checkpoint version = 48b305e5
[  445.154145][T10140] bio_check_eod: 33 callbacks suppressed
[  445.154161][T10140] syz.1.993: attempt to access beyond end of device
[  445.154161][T10140] loop1: rw=2049, sector=53248, nr_sectors = 976 limit=40427
[  445.167948][T10140] syz.1.993: attempt to access beyond end of device
[  445.167948][T10140] loop1: rw=8423425, sector=54224, nr_sectors = 8 limit=40427
[  445.188502][ T6002] syz-executor: attempt to access beyond end of device
[  445.188502][ T6002] loop1: rw=2049, sector=45096, nr_sectors = 8 limit=40427
[  445.216973][ T6002] CPU: 0 UID: 0 PID: 6002 Comm: syz-executor Not tainted syzkaller #0 PREEMPT(full) 
[  445.216993][ T6002] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
[  445.217000][ T6002] Call Trace:
[  445.217005][ T6002]  <TASK>
[  445.217011][ T6002]  dump_stack_lvl+0xe8/0x150
[  445.217033][ T6002]  f2fs_stop_checkpoint+0x3f6/0x5d0
[  445.217085][ T6002]  f2fs_write_end_io+0x124b/0x1710
[  445.217111][ T6002]  __submit_merged_bio+0x258/0x6a0
[  445.217125][ T6002]  ? rcu_is_watching+0x15/0xb0
[  445.217143][ T6002]  __submit_merged_write_cond+0x3c9/0x4e0
[  445.217163][ T6002]  ? __pfx___submit_merged_write_cond+0x10/0x10
[  445.217191][ T6002]  f2fs_write_data_pages+0x2a27/0x36f0
[  445.217228][ T6002]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  445.217270][ T6002]  ? __pfx_hlock_conflict+0x10/0x10
[  445.217281][ T6002]  ? __bfs+0x153/0x290
[  445.217294][ T6002]  ? __pfx_hlock_conflict+0x10/0x10
[  445.217317][ T6002]  ? lockdep_unlock+0x5d/0xd0
[  445.217337][ T6002]  ? __lock_acquire+0x13e8/0x2cf0
[  445.217366][ T6002]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  445.217382][ T6002]  do_writepages+0x338/0x560
[  445.217404][ T6002]  ? do_raw_spin_unlock+0x4d/0x210
[  445.217420][ T6002]  filemap_fdatawrite+0x1e9/0x2f0
[  445.217439][ T6002]  ? __pfx_filemap_fdatawrite+0x10/0x10
[  445.217476][ T6002]  ? do_raw_spin_unlock+0x4d/0x210
[  445.217491][ T6002]  f2fs_sync_dirty_inodes+0x30e/0x830
[  445.217515][ T6002]  f2fs_write_checkpoint+0xa3d/0x2710
[  445.217551][ T6002]  ? __pfx_f2fs_write_checkpoint+0x10/0x10
[  445.217597][ T6002]  kill_f2fs_super+0x2dd/0x700
[  445.217619][ T6002]  ? __pfx_kill_f2fs_super+0x10/0x10
[  445.217643][ T6002]  ? call_rcu+0x64b/0x8b0
[  445.217654][ T6002]  ? lockdep_hardirqs_on+0x7a/0x110
[  445.217677][ T6002]  deactivate_locked_super+0xbc/0x110
[  445.217694][ T6002]  cleanup_mnt+0x3d3/0x460
[  445.217708][ T6002]  task_work_run+0x1d9/0x270
[  445.217727][ T6002]  ? __pfx_task_work_run+0x10/0x10
[  445.217751][ T6002]  exit_to_user_mode_loop+0x1fa/0x730
[  445.217788][ T6002]  ? rcu_is_watching+0x15/0xb0
[  445.217806][ T6002]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  445.217820][ T6002]  do_syscall_64+0x353/0x580
[  445.217832][ T6002]  ? trace_irq_disable+0x3b/0x140
[  445.217851][ T6002]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  445.217863][ T6002] RIP: 0033:0x7fbec519f257
[  445.217879][ T6002] 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
[  445.217889][ T6002] RSP: 002b:00007fff2e02d568 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
[  445.217903][ T6002] RAX: 0000000000000000 RBX: 00007fbec523445c RCX: 00007fbec519f257
[  445.217911][ T6002] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007fff2e02d620
[  445.217918][ T6002] RBP: 00007fff2e02d620 R08: 00007fff2e02e620 R09: 00000000ffffffff
[  445.217926][ T6002] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fff2e02e6b0
[  445.217934][ T6002] R13: 00007fbec523445c R14: 000000000006ca68 R15: 00007fff2e02e6f0
[  445.217953][ T6002]  </TASK>
[  445.218000][ T6002] F2FS-fs (loop1): Stopped filesystem due to reason: 3
[  445.591563][T10148] loop2: detected capacity change from 0 to 40427
[  445.610845][T10148] F2FS-fs (loop2): Small segment_count (9 < 1 * 24)
[  445.618239][T10148] F2FS-fs (loop2): Can't find valid F2FS filesystem in 1th superblock
[  445.686306][T10146] loop0: detected capacity change from 0 to 40427
[  445.698748][T10146] F2FS-fs (loop0): Small segment_count (9 < 1 * 24)
[  445.706200][T10146] F2FS-fs (loop0): Can't find valid F2FS filesystem in 1th superblock
[  445.719119][T10148] F2FS-fs (loop2): f2fs_recover_fsync_data: recovery fsync data, check_only: 0
[  445.735494][T10148] F2FS-fs (loop2): Try to recover 1th superblock, ret: 0
[  445.738172][T10148] F2FS-fs (loop2): Mounted with checkpoint version = 48b305e5
[  445.742758][   T33] kauditd_printk_skb: 20 callbacks suppressed
[  445.742767][   T33] audit: type=1800 audit(1785887736.947:1955): pid=10148 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
[  445.763388][   T33] audit: type=1800 audit(1785887736.967:1956): pid=10148 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
[  445.774157][T10148] syz.2.995: attempt to access beyond end of device
[  445.774157][T10148] loop2: rw=2049, sector=53248, nr_sectors = 976 limit=40427
[  445.782592][T10146] F2FS-fs (loop0): f2fs_recover_fsync_data: recovery fsync data, check_only: 0
[  445.787388][T10148] syz.2.995: attempt to access beyond end of device
[  445.787388][T10148] loop2: rw=8423425, sector=54224, nr_sectors = 8 limit=40427
[  445.789515][T10146] F2FS-fs (loop0): Try to recover 1th superblock, ret: 0
[  445.795572][T10146] F2FS-fs (loop0): Mounted with checkpoint version = 48b305e5
[  445.803198][   T33] audit: type=1800 audit(1785887737.007:1957): pid=10146 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
[  445.815171][ T6006] syz-executor: attempt to access beyond end of device
[  445.815171][ T6006] loop2: rw=2049, sector=45096, nr_sectors = 8 limit=40427
[  445.822086][ T6006] CPU: 0 UID: 0 PID: 6006 Comm: syz-executor Not tainted syzkaller #0 PREEMPT(full) 
[  445.822103][ T6006] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
[  445.822111][ T6006] Call Trace:
[  445.822117][ T6006]  <TASK>
[  445.822123][ T6006]  dump_stack_lvl+0xe8/0x150
[  445.822144][ T6006]  f2fs_stop_checkpoint+0x3f6/0x5d0
[  445.822163][ T6006]  f2fs_write_end_io+0x124b/0x1710
[  445.822193][ T6006]  __submit_merged_bio+0x258/0x6a0
[  445.822207][ T6006]  ? rcu_is_watching+0x15/0xb0
[  445.822228][ T6006]  __submit_merged_write_cond+0x3c9/0x4e0
[  445.822248][ T6006]  ? __pfx___submit_merged_write_cond+0x10/0x10
[  445.822279][ T6006]  f2fs_write_data_pages+0x2a27/0x36f0
[  445.822329][ T6006]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  445.822377][ T6006]  ? rcu_is_watching+0x15/0xb0
[  445.822395][ T6006]  ? __pfx_hlock_conflict+0x10/0x10
[  445.822405][ T6006]  ? __bfs+0x153/0x290
[  445.822420][ T6006]  ? __pfx_hlock_conflict+0x10/0x10
[  445.822444][ T6006]  ? lockdep_unlock+0x5d/0xd0
[  445.822456][ T6006]  ? __lock_acquire+0x13e8/0x2cf0
[  445.822492][ T6006]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  445.822509][ T6006]  do_writepages+0x338/0x560
[  445.822534][ T6006]  ? do_raw_spin_unlock+0x4d/0x210
[  445.822550][ T6006]  filemap_fdatawrite+0x1e9/0x2f0
[  445.822569][ T6006]  ? __pfx_filemap_fdatawrite+0x10/0x10
[  445.822617][ T6006]  ? do_raw_spin_unlock+0x4d/0x210
[  445.822633][ T6006]  f2fs_sync_dirty_inodes+0x30e/0x830
[  445.822661][ T6006]  f2fs_write_checkpoint+0xa3d/0x2710
[  445.822702][ T6006]  ? __pfx_f2fs_write_checkpoint+0x10/0x10
[  445.822751][ T6006]  kill_f2fs_super+0x2dd/0x700
[  445.822770][ T6006]  ? __pfx_kill_f2fs_super+0x10/0x10
[  445.822791][ T6006]  ? call_rcu+0x64b/0x8b0
[  445.822800][ T6006]  ? lockdep_hardirqs_on+0x7a/0x110
[  445.822821][ T6006]  deactivate_locked_super+0xbc/0x110
[  445.822838][ T6006]  cleanup_mnt+0x3d3/0x460
[  445.822851][ T6006]  task_work_run+0x1d9/0x270
[  445.822869][ T6006]  ? __pfx_task_work_run+0x10/0x10
[  445.822891][ T6006]  exit_to_user_mode_loop+0x1fa/0x730
[  445.822905][ T6006]  ? rcu_is_watching+0x15/0xb0
[  445.822920][ T6006]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  445.822932][ T6006]  do_syscall_64+0x353/0x580
[  445.822943][ T6006]  ? trace_irq_disable+0x3b/0x140
[  445.822983][ T6006]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  445.822996][ T6006] RIP: 0033:0x7fe55f39f257
[  445.823008][ T6006] 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
[  445.823017][ T6006] RSP: 002b:00007ffd634636d8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
[  445.823029][ T6006] RAX: 0000000000000000 RBX: 00007fe55f43445c RCX: 00007fe55f39f257
[  445.823067][ T6006] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffd63463790
[  445.823073][ T6006] RBP: 00007ffd63463790 R08: 00007ffd63464790 R09: 00000000ffffffff
[  445.823079][ T6006] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffd63464820
[  445.823085][ T6006] R13: 00007fe55f43445c R14: 000000000006ccda R15: 00007ffd63464860
[  445.823103][ T6006]  </TASK>
[  445.950312][   T33] audit: type=1800 audit(1785887737.017:1958): pid=10146 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
[  445.952380][ T6006] F2FS-fs (loop2): Stopped filesystem due to reason: 3
[  445.974140][T10146] syz.0.994: attempt to access beyond end of device
[  445.974140][T10146] loop0: rw=2049, sector=53248, nr_sectors = 976 limit=40427
[  445.980966][T10146] syz.0.994: attempt to access beyond end of device
[  445.980966][T10146] loop0: rw=8423425, sector=54224, nr_sectors = 8 limit=40427
[  446.007183][ T6001] syz-executor: attempt to access beyond end of device
[  446.007183][ T6001] loop0: rw=2049, sector=45096, nr_sectors = 8 limit=40427
[  446.018696][ T6001] CPU: 1 UID: 0 PID: 6001 Comm: syz-executor Not tainted syzkaller #0 PREEMPT(full) 
[  446.018717][ T6001] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
[  446.018726][ T6001] Call Trace:
[  446.018733][ T6001]  <TASK>
[  446.018739][ T6001]  dump_stack_lvl+0xe8/0x150
[  446.018765][ T6001]  f2fs_stop_checkpoint+0x3f6/0x5d0
[  446.018788][ T6001]  f2fs_write_end_io+0x124b/0x1710
[  446.018820][ T6001]  __submit_merged_bio+0x258/0x6a0
[  446.018834][ T6001]  ? rcu_is_watching+0x15/0xb0
[  446.018857][ T6001]  __submit_merged_write_cond+0x3c9/0x4e0
[  446.018880][ T6001]  ? __pfx___submit_merged_write_cond+0x10/0x10
[  446.018913][ T6001]  f2fs_write_data_pages+0x2a27/0x36f0
[  446.018930][ T6001]  ? __lock_acquire+0x683/0x2cf0
[  446.018972][ T6001]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  446.019022][ T6001]  ? __pfx_hlock_conflict+0x10/0x10
[  446.019068][ T6001]  ? __bfs+0x153/0x290
[  446.019083][ T6001]  ? __pfx_hlock_conflict+0x10/0x10
[  446.019114][ T6001]  ? lockdep_unlock+0x5d/0xd0
[  446.019128][ T6001]  ? __lock_acquire+0x13e8/0x2cf0
[  446.019163][ T6001]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  446.019181][ T6001]  do_writepages+0x338/0x560
[  446.019206][ T6001]  ? do_raw_spin_unlock+0x4d/0x210
[  446.019224][ T6001]  filemap_fdatawrite+0x1e9/0x2f0
[  446.019244][ T6001]  ? __pfx_filemap_fdatawrite+0x10/0x10
[  446.019294][ T6001]  ? do_raw_spin_unlock+0x4d/0x210
[  446.019311][ T6001]  f2fs_sync_dirty_inodes+0x30e/0x830
[  446.019341][ T6001]  f2fs_write_checkpoint+0xa3d/0x2710
[  446.019383][ T6001]  ? __pfx_f2fs_write_checkpoint+0x10/0x10
[  446.019459][ T6001]  kill_f2fs_super+0x2dd/0x700
[  446.019486][ T6001]  ? __pfx_kill_f2fs_super+0x10/0x10
[  446.019511][ T6001]  ? call_rcu+0x64b/0x8b0
[  446.019523][ T6001]  ? lockdep_hardirqs_on+0x7a/0x110
[  446.019549][ T6001]  deactivate_locked_super+0xbc/0x110
[  446.019570][ T6001]  cleanup_mnt+0x3d3/0x460
[  446.019587][ T6001]  task_work_run+0x1d9/0x270
[  446.019608][ T6001]  ? __pfx_task_work_run+0x10/0x10
[  446.019633][ T6001]  exit_to_user_mode_loop+0x1fa/0x730
[  446.019649][ T6001]  ? rcu_is_watching+0x15/0xb0
[  446.019667][ T6001]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  446.019681][ T6001]  do_syscall_64+0x353/0x580
[  446.019694][ T6001]  ? trace_irq_disable+0x3b/0x140
[  446.019715][ T6001]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  446.019727][ T6001] RIP: 0033:0x7f319199f257
[  446.019742][ T6001] 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
[  446.019753][ T6001] RSP: 002b:00007fff67960bb8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
[  446.019768][ T6001] RAX: 0000000000000000 RBX: 00007f3191a3445c RCX: 00007f319199f257
[  446.019777][ T6001] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007fff67960c70
[  446.019784][ T6001] RBP: 00007fff67960c70 R08: 00007fff67961c70 R09: 00000000ffffffff
[  446.019792][ T6001] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fff67961d00
[  446.019800][ T6001] R13: 00007f3191a3445c R14: 000000000006cd8c R15: 00007fff67961d40
[  446.019822][ T6001]  </TASK>
[  446.022279][ T6001] F2FS-fs (loop0): Stopped filesystem due to reason: 3
[  446.217944][T10150] loop1: detected capacity change from 0 to 40427
[  446.224896][T10150] F2FS-fs (loop1): Small segment_count (9 < 1 * 24)
[  446.234764][T10150] F2FS-fs (loop1): Can't find valid F2FS filesystem in 1th superblock
[  446.348019][T10150] F2FS-fs (loop1): f2fs_recover_fsync_data: recovery fsync data, check_only: 0
[  446.371078][T10150] F2FS-fs (loop1): Try to recover 1th superblock, ret: 0
[  446.384841][T10150] F2FS-fs (loop1): Mounted with checkpoint version = 48b305e5
[  446.388541][   T33] audit: type=1800 audit(1785887737.597:1959): pid=10150 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
[  446.395713][   T33] audit: type=1800 audit(1785887737.607:1960): pid=10150 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
[  446.408740][T10150] syz.1.996: attempt to access beyond end of device
[  446.408740][T10150] loop1: rw=2049, sector=53248, nr_sectors = 976 limit=40427
[  446.433387][ T6002] CPU: 0 UID: 0 PID: 6002 Comm: syz-executor Not tainted syzkaller #0 PREEMPT(full) 
[  446.433407][ T6002] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
[  446.433414][ T6002] Call Trace:
[  446.433420][ T6002]  <TASK>
[  446.433425][ T6002]  dump_stack_lvl+0xe8/0x150
[  446.433447][ T6002]  f2fs_stop_checkpoint+0x3f6/0x5d0
[  446.433467][ T6002]  f2fs_write_end_io+0x124b/0x1710
[  446.433497][ T6002]  __submit_merged_bio+0x258/0x6a0
[  446.433512][ T6002]  ? rcu_is_watching+0x15/0xb0
[  446.433534][ T6002]  __submit_merged_write_cond+0x3c9/0x4e0
[  446.433555][ T6002]  ? __pfx___submit_merged_write_cond+0x10/0x10
[  446.433585][ T6002]  f2fs_write_data_pages+0x2a27/0x36f0
[  446.433602][ T6002]  ? __lock_acquire+0x683/0x2cf0
[  446.433639][ T6002]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  446.433684][ T6002]  ? __pfx_hlock_conflict+0x10/0x10
[  446.433694][ T6002]  ? __bfs+0x153/0x290
[  446.433708][ T6002]  ? __pfx_hlock_conflict+0x10/0x10
[  446.433731][ T6002]  ? lockdep_unlock+0x5d/0xd0
[  446.433744][ T6002]  ? __lock_acquire+0x13e8/0x2cf0
[  446.433776][ T6002]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  446.433794][ T6002]  do_writepages+0x338/0x560
2026/08/04 23:55:37 executed programs: 988
[  446.433815][ T6002]  ? do_raw_spin_unlock+0x4d/0x210
[  446.433831][ T6002]  filemap_fdatawrite+0x1e9/0x2f0
[  446.433850][ T6002]  ? __pfx_filemap_fdatawrite+0x10/0x10
[  446.433894][ T6002]  ? do_raw_spin_unlock+0x4d/0x210
[  446.433910][ T6002]  f2fs_sync_dirty_inodes+0x30e/0x830
[  446.433937][ T6002]  f2fs_write_checkpoint+0xa3d/0x2710
[  446.433974][ T6002]  ? __pfx_f2fs_write_checkpoint+0x10/0x10
[  446.434021][ T6002]  kill_f2fs_super+0x2dd/0x700
[  446.434071][ T6002]  ? __pfx_kill_f2fs_super+0x10/0x10
[  446.434093][ T6002]  ? call_rcu+0x64b/0x8b0
[  446.434104][ T6002]  ? lockdep_hardirqs_on+0x7a/0x110
[  446.434128][ T6002]  deactivate_locked_super+0xbc/0x110
[  446.434146][ T6002]  cleanup_mnt+0x3d3/0x460
[  446.434163][ T6002]  task_work_run+0x1d9/0x270
[  446.434184][ T6002]  ? __pfx_task_work_run+0x10/0x10
[  446.434208][ T6002]  exit_to_user_mode_loop+0x1fa/0x730
[  446.434223][ T6002]  ? rcu_is_watching+0x15/0xb0
[  446.434240][ T6002]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  446.434254][ T6002]  do_syscall_64+0x353/0x580
[  446.434267][ T6002]  ? trace_irq_disable+0x3b/0x140
[  446.434285][ T6002]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  446.434298][ T6002] RIP: 0033:0x7fbec519f257
[  446.434318][ T6002] 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
[  446.434329][ T6002] RSP: 002b:00007fff2e02d568 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
[  446.434342][ T6002] RAX: 0000000000000000 RBX: 00007fbec523445c RCX: 00007fbec519f257
[  446.434350][ T6002] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007fff2e02d620
[  446.434357][ T6002] RBP: 00007fff2e02d620 R08: 00007fff2e02e620 R09: 00000000ffffffff
[  446.434365][ T6002] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fff2e02e6b0
[  446.434372][ T6002] R13: 00007fbec523445c R14: 000000000006cf38 R15: 00007fff2e02e6f0
[  446.434392][ T6002]  </TASK>
[  446.434397][ T6002] F2FS-fs (loop1): Stopped filesystem due to reason: 3
[  446.626918][T10158] loop2: detected capacity change from 0 to 40427
[  446.630995][T10158] F2FS-fs (loop2): Small segment_count (9 < 1 * 24)
[  446.636202][T10158] F2FS-fs (loop2): Can't find valid F2FS filesystem in 1th superblock
[  446.744144][T10158] F2FS-fs (loop2): f2fs_recover_fsync_data: recovery fsync data, check_only: 0
[  446.752664][T10158] F2FS-fs (loop2): Try to recover 1th superblock, ret: 0
[  446.757211][T10158] F2FS-fs (loop2): Mounted with checkpoint version = 48b305e5
[  446.762973][   T33] audit: type=1800 audit(1785887737.967:1961): pid=10158 uid=0 auid=4294967295 ses=4294967295 subj=unconfined op=collect_data cause=failed(directio) comm="syz.2.997" name="file1" dev="loop2" ino=10 res=0 errno=0
[  446.782084][   T33] audit: type=1800 audit(1785887737.987:1962): pid=10158 uid=0 auid=4294967295 ses=4294967295 subj=unconfined op=collect_data cause=failed(directio) comm="syz.2.997" name="file1" dev="loop2" ino=10 res=0 errno=0
[  446.817254][ T6006] CPU: 0 UID: 0 PID: 6006 Comm: syz-executor Not tainted syzkaller #0 PREEMPT(full) 
[  446.817277][ T6006] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
[  446.817286][ T6006] Call Trace:
[  446.817292][ T6006]  <TASK>
[  446.817298][ T6006]  dump_stack_lvl+0xe8/0x150
[  446.817355][ T6006]  f2fs_stop_checkpoint+0x3f6/0x5d0
[  446.817378][ T6006]  f2fs_write_end_io+0x124b/0x1710
[  446.817411][ T6006]  __submit_merged_bio+0x258/0x6a0
[  446.817426][ T6006]  ? rcu_is_watching+0x15/0xb0
[  446.817449][ T6006]  __submit_merged_write_cond+0x3c9/0x4e0
[  446.817471][ T6006]  ? __pfx___submit_merged_write_cond+0x10/0x10
[  446.817503][ T6006]  f2fs_write_data_pages+0x2a27/0x36f0
[  446.817546][ T6006]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  446.817599][ T6006]  ? rcu_is_watching+0x15/0xb0
[  446.817616][ T6006]  ? trace_sched_exit_tp+0x3a/0x130
[  446.817655][ T6006]  ? __pfx___schedule+0x10/0x10
[  446.817672][ T6006]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  446.817690][ T6006]  do_writepages+0x338/0x560
[  446.817710][ T6006]  ? preempt_schedule_common+0x82/0xd0
[  446.817724][ T6006]  ? preempt_schedule_thunk+0x16/0x40
[  446.817743][ T6006]  filemap_fdatawrite+0x1e9/0x2f0
[  446.817763][ T6006]  ? __pfx_filemap_fdatawrite+0x10/0x10
[  446.817810][ T6006]  ? do_raw_spin_unlock+0x4d/0x210
[  446.817828][ T6006]  f2fs_sync_dirty_inodes+0x30e/0x830
[  446.817856][ T6006]  f2fs_write_checkpoint+0xa3d/0x2710
[  446.817898][ T6006]  ? __pfx_f2fs_write_checkpoint+0x10/0x10
[  446.817954][ T6006]  kill_f2fs_super+0x2dd/0x700
[  446.817978][ T6006]  ? __pfx_kill_f2fs_super+0x10/0x10
[  446.818005][ T6006]  ? call_rcu+0x64b/0x8b0
[  446.818016][ T6006]  ? lockdep_hardirqs_on+0x7a/0x110
[  446.818069][ T6006]  deactivate_locked_super+0xbc/0x110
[  446.818089][ T6006]  cleanup_mnt+0x3d3/0x460
[  446.818105][ T6006]  task_work_run+0x1d9/0x270
[  446.818127][ T6006]  ? __pfx_task_work_run+0x10/0x10
[  446.818152][ T6006]  exit_to_user_mode_loop+0x1fa/0x730
[  446.818167][ T6006]  ? rcu_is_watching+0x15/0xb0
[  446.818185][ T6006]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  446.818199][ T6006]  do_syscall_64+0x353/0x580
[  446.818213][ T6006]  ? trace_irq_disable+0x3b/0x140
[  446.818233][ T6006]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  446.818245][ T6006] RIP: 0033:0x7fe55f39f257
[  446.818257][ T6006] 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
[  446.818268][ T6006] RSP: 002b:00007ffd634636d8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
[  446.818283][ T6006] RAX: 0000000000000000 RBX: 00007fe55f43445c RCX: 00007fe55f39f257
[  446.818291][ T6006] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffd63463790
[  446.818299][ T6006] RBP: 00007ffd63463790 R08: 00007ffd63464790 R09: 00000000ffffffff
[  446.818313][ T6006] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffd63464820
[  446.818320][ T6006] R13: 00007fe55f43445c R14: 000000000006d0b9 R15: 00007ffd63464860
[  446.818341][ T6006]  </TASK>
[  446.819650][ T6006] F2FS-fs (loop2): Stopped filesystem due to reason: 3
[  446.872266][T10160] loop0: detected capacity change from 0 to 40427
[  446.985934][T10160] F2FS-fs (loop0): Small segment_count (9 < 1 * 24)
[  446.989628][T10160] F2FS-fs (loop0): Can't find valid F2FS filesystem in 1th superblock
[  447.076435][T10160] F2FS-fs (loop0): f2fs_recover_fsync_data: recovery fsync data, check_only: 0
[  447.083828][T10160] F2FS-fs (loop0): Try to recover 1th superblock, ret: 0
[  447.088182][T10160] F2FS-fs (loop0): Mounted with checkpoint version = 48b305e5
[  447.095220][   T33] audit: type=1800 audit(1785887738.307:1963): pid=10160 uid=0 auid=4294967295 ses=4294967295 subj=unconfined op=collect_data cause=failed(directio) comm="syz.0.998" name="file1" dev="loop0" ino=10 res=0 errno=0
[  447.112340][   T33] audit: type=1800 audit(1785887738.307:1964): pid=10160 uid=0 auid=4294967295 ses=4294967295 subj=unconfined op=collect_data cause=failed(directio) comm="syz.0.998" name="file1" dev="loop0" ino=10 res=0 errno=0
[  447.127468][ T6001] CPU: 0 UID: 0 PID: 6001 Comm: syz-executor Not tainted syzkaller #0 PREEMPT(full) 
[  447.127482][ T6001] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
[  447.127487][ T6001] Call Trace:
[  447.127490][ T6001]  <TASK>
[  447.127494][ T6001]  dump_stack_lvl+0xe8/0x150
[  447.127509][ T6001]  f2fs_stop_checkpoint+0x3f6/0x5d0
[  447.127520][ T6001]  f2fs_write_end_io+0x124b/0x1710
[  447.127537][ T6001]  __submit_merged_bio+0x258/0x6a0
[  447.127545][ T6001]  ? rcu_is_watching+0x15/0xb0
[  447.127558][ T6001]  __submit_merged_write_cond+0x3c9/0x4e0
[  447.127570][ T6001]  ? __pfx___submit_merged_write_cond+0x10/0x10
[  447.127586][ T6001]  f2fs_write_data_pages+0x2a27/0x36f0
[  447.127596][ T6001]  ? __lock_acquire+0x683/0x2cf0
[  447.127616][ T6001]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  447.127640][ T6001]  ? __pfx_hlock_conflict+0x10/0x10
[  447.127646][ T6001]  ? __bfs+0x153/0x290
[  447.127654][ T6001]  ? __pfx_hlock_conflict+0x10/0x10
[  447.127666][ T6001]  ? lockdep_unlock+0x5d/0xd0
[  447.127674][ T6001]  ? __lock_acquire+0x13e8/0x2cf0
[  447.127691][ T6001]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  447.127701][ T6001]  do_writepages+0x338/0x560
[  447.127714][ T6001]  ? do_raw_spin_unlock+0x4d/0x210
[  447.127723][ T6001]  filemap_fdatawrite+0x1e9/0x2f0
[  447.127735][ T6001]  ? __pfx_filemap_fdatawrite+0x10/0x10
[  447.127759][ T6001]  ? do_raw_spin_unlock+0x4d/0x210
[  447.127767][ T6001]  f2fs_sync_dirty_inodes+0x30e/0x830
[  447.127782][ T6001]  f2fs_write_checkpoint+0xa3d/0x2710
[  447.127826][ T6001]  ? __pfx_f2fs_write_checkpoint+0x10/0x10
[  447.127855][ T6001]  kill_f2fs_super+0x2dd/0x700
[  447.127868][ T6001]  ? __pfx_kill_f2fs_super+0x10/0x10
[  447.127882][ T6001]  ? call_rcu+0x64b/0x8b0
[  447.127888][ T6001]  ? lockdep_hardirqs_on+0x7a/0x110
[  447.127901][ T6001]  deactivate_locked_super+0xbc/0x110
[  447.127912][ T6001]  cleanup_mnt+0x3d3/0x460
[  447.127922][ T6001]  task_work_run+0x1d9/0x270
[  447.127933][ T6001]  ? __pfx_task_work_run+0x10/0x10
[  447.127946][ T6001]  exit_to_user_mode_loop+0x1fa/0x730
[  447.127956][ T6001]  ? rcu_is_watching+0x15/0xb0
[  447.127966][ T6001]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  447.127974][ T6001]  do_syscall_64+0x353/0x580
[  447.127981][ T6001]  ? trace_irq_disable+0x3b/0x140
[  447.127992][ T6001]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  447.127999][ T6001] RIP: 0033:0x7f319199f257
[  447.128007][ T6001] 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
[  447.128042][ T6001] RSP: 002b:00007fff67960bb8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
[  447.128054][ T6001] RAX: 0000000000000000 RBX: 00007f3191a3445c RCX: 00007f319199f257
[  447.128059][ T6001] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007fff67960c70
[  447.128064][ T6001] RBP: 00007fff67960c70 R08: 00007fff67961c70 R09: 00000000ffffffff
[  447.128069][ T6001] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fff67961d00
[  447.128074][ T6001] R13: 00007f3191a3445c R14: 000000000006d202 R15: 00007fff67961d40
[  447.128085][ T6001]  </TASK>
[  447.129172][ T6001] F2FS-fs (loop0): Stopped filesystem due to reason: 3
[  447.362562][T10164] loop1: detected capacity change from 0 to 40427
[  447.379522][T10164] F2FS-fs (loop1): Small segment_count (9 < 1 * 24)
[  447.394494][T10164] F2FS-fs (loop1): Can't find valid F2FS filesystem in 1th superblock
[  447.442653][T10168] F2FS-fs (loop2): Small segment_count (9 < 1 * 24)
[  447.454860][T10168] F2FS-fs (loop2): Can't find valid F2FS filesystem in 1th superblock
[  447.511280][T10164] F2FS-fs (loop1): f2fs_recover_fsync_data: recovery fsync data, check_only: 0
[  447.517412][T10164] F2FS-fs (loop1): Try to recover 1th superblock, ret: 0
[  447.520147][T10164] F2FS-fs (loop1): Mounted with checkpoint version = 48b305e5
[  447.523189][T10168] F2FS-fs (loop2): f2fs_recover_fsync_data: recovery fsync data, check_only: 0
[  447.529436][T10168] F2FS-fs (loop2): Try to recover 1th superblock, ret: 0
[  447.533471][T10168] F2FS-fs (loop2): Mounted with checkpoint version = 48b305e5
[  447.546452][ T6002] CPU: 1 UID: 0 PID: 6002 Comm: syz-executor Not tainted syzkaller #0 PREEMPT(full) 
[  447.546473][ T6002] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
[  447.546482][ T6002] Call Trace:
[  447.546487][ T6002]  <TASK>
[  447.546494][ T6002]  dump_stack_lvl+0xe8/0x150
[  447.546519][ T6002]  f2fs_stop_checkpoint+0x3f6/0x5d0
[  447.546541][ T6002]  f2fs_write_end_io+0x124b/0x1710
[  447.546580][ T6002]  __submit_merged_bio+0x258/0x6a0
[  447.546594][ T6002]  ? rcu_is_watching+0x15/0xb0
[  447.546615][ T6002]  __submit_merged_write_cond+0x3c9/0x4e0
[  447.546637][ T6002]  ? __pfx___submit_merged_write_cond+0x10/0x10
[  447.546665][ T6002]  f2fs_write_data_pages+0x2a27/0x36f0
[  447.546681][ T6002]  ? __lock_acquire+0x683/0x2cf0
[  447.546716][ T6002]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  447.546760][ T6002]  ? __pfx_hlock_conflict+0x10/0x10
[  447.546771][ T6002]  ? __bfs+0x153/0x290
[  447.546785][ T6002]  ? __pfx_hlock_conflict+0x10/0x10
[  447.546807][ T6002]  ? lockdep_unlock+0x5d/0xd0
[  447.546820][ T6002]  ? __lock_acquire+0x13e8/0x2cf0
[  447.546851][ T6002]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  447.546868][ T6002]  do_writepages+0x338/0x560
[  447.546892][ T6002]  ? do_raw_spin_unlock+0x4d/0x210
[  447.546909][ T6002]  filemap_fdatawrite+0x1e9/0x2f0
[  447.546953][ T6002]  ? __pfx_filemap_fdatawrite+0x10/0x10
[  447.546996][ T6002]  ? do_raw_spin_unlock+0x4d/0x210
[  447.547038][ T6002]  f2fs_sync_dirty_inodes+0x30e/0x830
[  447.547067][ T6002]  f2fs_write_checkpoint+0xa3d/0x2710
[  447.547105][ T6002]  ? __pfx_f2fs_write_checkpoint+0x10/0x10
[  447.547154][ T6002]  kill_f2fs_super+0x2dd/0x700
[  447.547178][ T6002]  ? __pfx_kill_f2fs_super+0x10/0x10
[  447.547202][ T6002]  ? call_rcu+0x64b/0x8b0
[  447.547213][ T6002]  ? lockdep_hardirqs_on+0x7a/0x110
[  447.547236][ T6002]  deactivate_locked_super+0xbc/0x110
[  447.547254][ T6002]  cleanup_mnt+0x3d3/0x460
[  447.547269][ T6002]  task_work_run+0x1d9/0x270
[  447.547289][ T6002]  ? __pfx_task_work_run+0x10/0x10
[  447.547311][ T6002]  exit_to_user_mode_loop+0x1fa/0x730
[  447.547326][ T6002]  ? rcu_is_watching+0x15/0xb0
[  447.547342][ T6002]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  447.547355][ T6002]  do_syscall_64+0x353/0x580
[  447.547370][ T6002]  ? trace_irq_disable+0x3b/0x140
[  447.547389][ T6002]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  447.547401][ T6002] RIP: 0033:0x7fbec519f257
[  447.547414][ T6002] 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
[  447.547425][ T6002] RSP: 002b:00007fff2e02d568 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
[  447.547439][ T6002] RAX: 0000000000000000 RBX: 00007fbec523445c RCX: 00007fbec519f257
[  447.547447][ T6002] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007fff2e02d620
[  447.547455][ T6002] RBP: 00007fff2e02d620 R08: 00007fff2e02e620 R09: 00000000ffffffff
[  447.547463][ T6002] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fff2e02e6b0
[  447.547470][ T6002] R13: 00007fbec523445c R14: 000000000006d39f R15: 00007fff2e02e6f0
[  447.547490][ T6002]  </TASK>
[  447.548495][ T6002] F2FS-fs (loop1): Stopped filesystem due to reason: 3
[  447.674362][ T6006] CPU: 0 UID: 0 PID: 6006 Comm: syz-executor Not tainted syzkaller #0 PREEMPT(full) 
[  447.674377][ T6006] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
[  447.674381][ T6006] Call Trace:
[  447.674385][ T6006]  <TASK>
[  447.674389][ T6006]  dump_stack_lvl+0xe8/0x150
[  447.674403][ T6006]  f2fs_stop_checkpoint+0x3f6/0x5d0
[  447.674415][ T6006]  f2fs_write_end_io+0x124b/0x1710
[  447.674432][ T6006]  __submit_merged_bio+0x258/0x6a0
[  447.674440][ T6006]  ? rcu_is_watching+0x15/0xb0
[  447.674453][ T6006]  __submit_merged_write_cond+0x3c9/0x4e0
[  447.674465][ T6006]  ? __pfx___submit_merged_write_cond+0x10/0x10
[  447.674481][ T6006]  f2fs_write_data_pages+0x2a27/0x36f0
[  447.674491][ T6006]  ? __lock_acquire+0x683/0x2cf0
[  447.674511][ T6006]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  447.674536][ T6006]  ? __pfx_hlock_conflict+0x10/0x10
[  447.674542][ T6006]  ? __bfs+0x153/0x290
[  447.674551][ T6006]  ? __pfx_hlock_conflict+0x10/0x10
[  447.674563][ T6006]  ? lockdep_unlock+0x5d/0xd0
[  447.674570][ T6006]  ? __lock_acquire+0x13e8/0x2cf0
[  447.674588][ T6006]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  447.674621][ T6006]  do_writepages+0x338/0x560
[  447.674635][ T6006]  ? do_raw_spin_unlock+0x4d/0x210
[  447.674645][ T6006]  filemap_fdatawrite+0x1e9/0x2f0
[  447.674675][ T6006]  ? __pfx_filemap_fdatawrite+0x10/0x10
[  447.674700][ T6006]  ? do_raw_spin_unlock+0x4d/0x210
[  447.674709][ T6006]  f2fs_sync_dirty_inodes+0x30e/0x830
[  447.674725][ T6006]  f2fs_write_checkpoint+0xa3d/0x2710
[  447.674746][ T6006]  ? __pfx_f2fs_write_checkpoint+0x10/0x10
[  447.674774][ T6006]  kill_f2fs_super+0x2dd/0x700
[  447.674787][ T6006]  ? __pfx_kill_f2fs_super+0x10/0x10
[  447.674807][ T6006]  ? call_rcu+0x64b/0x8b0
[  447.674813][ T6006]  ? lockdep_hardirqs_on+0x7a/0x110
[  447.674827][ T6006]  deactivate_locked_super+0xbc/0x110
[  447.674838][ T6006]  cleanup_mnt+0x3d3/0x460
[  447.674847][ T6006]  task_work_run+0x1d9/0x270
[  447.674859][ T6006]  ? __pfx_task_work_run+0x10/0x10
[  447.674872][ T6006]  exit_to_user_mode_loop+0x1fa/0x730
[  447.674881][ T6006]  ? rcu_is_watching+0x15/0xb0
[  447.674891][ T6006]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  447.674899][ T6006]  do_syscall_64+0x353/0x580
[  447.674907][ T6006]  ? trace_irq_disable+0x3b/0x140
[  447.674918][ T6006]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  447.674924][ T6006] RIP: 0033:0x7fe55f39f257
[  447.674933][ T6006] 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
[  447.674940][ T6006] RSP: 002b:00007ffd634636d8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
[  447.674949][ T6006] RAX: 0000000000000000 RBX: 00007fe55f43445c RCX: 00007fe55f39f257
[  447.674954][ T6006] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffd63463790
[  447.674959][ T6006] RBP: 00007ffd63463790 R08: 00007ffd63464790 R09: 00000000ffffffff
[  447.674964][ T6006] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffd63464820
[  447.674968][ T6006] R13: 00007fe55f43445c R14: 000000000006d3f0 R15: 00007ffd63464860
[  447.674980][ T6006]  </TASK>
[  447.787107][ T6006] F2FS-fs (loop2): Stopped filesystem due to reason: 3
[  447.802201][T10174] F2FS-fs (loop0): Small segment_count (9 < 1 * 24)
[  447.822514][T10174] F2FS-fs (loop0): Can't find valid F2FS filesystem in 1th superblock
[  447.920853][T10174] F2FS-fs (loop0): f2fs_recover_fsync_data: recovery fsync data, check_only: 0
[  447.930151][T10174] F2FS-fs (loop0): Try to recover 1th superblock, ret: 0
[  447.932419][T10174] F2FS-fs (loop0): Mounted with checkpoint version = 48b305e5
[  447.967566][ T6001] CPU: 1 UID: 0 PID: 6001 Comm: syz-executor Not tainted syzkaller #0 PREEMPT(full) 
[  447.967582][ T6001] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
[  447.967587][ T6001] Call Trace:
[  447.967592][ T6001]  <TASK>
[  447.967596][ T6001]  dump_stack_lvl+0xe8/0x150
[  447.967612][ T6001]  f2fs_stop_checkpoint+0x3f6/0x5d0
[  447.967625][ T6001]  f2fs_write_end_io+0x124b/0x1710
[  447.967644][ T6001]  __submit_merged_bio+0x258/0x6a0
[  447.967653][ T6001]  ? rcu_is_watching+0x15/0xb0
[  447.967667][ T6001]  __submit_merged_write_cond+0x3c9/0x4e0
[  447.967679][ T6001]  ? __pfx___submit_merged_write_cond+0x10/0x10
[  447.967695][ T6001]  f2fs_write_data_pages+0x2a27/0x36f0
[  447.967718][ T6001]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  447.967741][ T6001]  ? __pfx_hlock_conflict+0x10/0x10
[  447.967748][ T6001]  ? __bfs+0x153/0x290
[  447.967757][ T6001]  ? __pfx_hlock_conflict+0x10/0x10
[  447.967769][ T6001]  ? lockdep_unlock+0x5d/0xd0
[  447.967777][ T6001]  ? __lock_acquire+0x13e8/0x2cf0
[  447.967795][ T6001]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  447.967805][ T6001]  do_writepages+0x338/0x560
[  447.967819][ T6001]  ? do_raw_spin_unlock+0x4d/0x210
[  447.967829][ T6001]  filemap_fdatawrite+0x1e9/0x2f0
[  447.967841][ T6001]  ? __pfx_filemap_fdatawrite+0x10/0x10
[  447.967865][ T6001]  ? do_raw_spin_unlock+0x4d/0x210
[  447.967874][ T6001]  f2fs_sync_dirty_inodes+0x30e/0x830
[  447.967889][ T6001]  f2fs_write_checkpoint+0xa3d/0x2710
[  447.967910][ T6001]  ? __pfx_f2fs_write_checkpoint+0x10/0x10
[  447.967937][ T6001]  kill_f2fs_super+0x2dd/0x700
[  447.967950][ T6001]  ? __pfx_kill_f2fs_super+0x10/0x10
[  447.967964][ T6001]  ? call_rcu+0x64b/0x8b0
[  447.967970][ T6001]  ? lockdep_hardirqs_on+0x7a/0x110
[  447.967984][ T6001]  deactivate_locked_super+0xbc/0x110
[  447.967996][ T6001]  cleanup_mnt+0x3d3/0x460
[  447.968030][ T6001]  task_work_run+0x1d9/0x270
[  447.968044][ T6001]  ? __pfx_task_work_run+0x10/0x10
[  447.968057][ T6001]  exit_to_user_mode_loop+0x1fa/0x730
[  447.968067][ T6001]  ? rcu_is_watching+0x15/0xb0
[  447.968077][ T6001]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  447.968086][ T6001]  do_syscall_64+0x353/0x580
[  447.968094][ T6001]  ? trace_irq_disable+0x3b/0x140
[  447.968122][ T6001]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  447.968132][ T6001] RIP: 0033:0x7f319199f257
[  447.968141][ T6001] 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
[  447.968148][ T6001] RSP: 002b:00007fff67960bb8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
[  447.968157][ T6001] RAX: 0000000000000000 RBX: 00007f3191a3445c RCX: 00007f319199f257
[  447.968162][ T6001] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007fff67960c70
[  447.968167][ T6001] RBP: 00007fff67960c70 R08: 00007fff67961c70 R09: 00000000ffffffff
[  447.968171][ T6001] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fff67961d00
[  447.968176][ T6001] R13: 00007f3191a3445c R14: 000000000006d540 R15: 00007fff67961d40
[  447.968188][ T6001]  </TASK>
[  447.969691][ T6001] F2FS-fs (loop0): Stopped filesystem due to reason: 3
[  448.111119][T10178] F2FS-fs (loop2): Small segment_count (9 < 1 * 24)
[  448.115115][T10178] F2FS-fs (loop2): Can't find valid F2FS filesystem in 1th superblock
[  448.159692][T10178] F2FS-fs (loop2): f2fs_recover_fsync_data: recovery fsync data, check_only: 0
[  448.172673][T10178] F2FS-fs (loop2): Try to recover 1th superblock, ret: 0
[  448.180019][T10178] F2FS-fs (loop2): Mounted with checkpoint version = 48b305e5
[  448.233575][ T6006] CPU: 1 UID: 0 PID: 6006 Comm: syz-executor Not tainted syzkaller #0 PREEMPT(full) 
[  448.233597][ T6006] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
[  448.233605][ T6006] Call Trace:
[  448.233611][ T6006]  <TASK>
[  448.233618][ T6006]  dump_stack_lvl+0xe8/0x150
[  448.233642][ T6006]  f2fs_stop_checkpoint+0x3f6/0x5d0
[  448.233661][ T6006]  f2fs_write_end_io+0x124b/0x1710
[  448.233690][ T6006]  __submit_merged_bio+0x258/0x6a0
[  448.233704][ T6006]  ? rcu_is_watching+0x15/0xb0
[  448.233727][ T6006]  __submit_merged_write_cond+0x3c9/0x4e0
[  448.233746][ T6006]  ? __pfx___submit_merged_write_cond+0x10/0x10
[  448.233776][ T6006]  f2fs_write_data_pages+0x2a27/0x36f0
[  448.233816][ T6006]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  448.233862][ T6006]  ? __pfx_hlock_conflict+0x10/0x10
[  448.233873][ T6006]  ? __bfs+0x153/0x290
[  448.233886][ T6006]  ? __pfx_hlock_conflict+0x10/0x10
[  448.233911][ T6006]  ? lockdep_unlock+0x5d/0xd0
[  448.233922][ T6006]  ? __lock_acquire+0x13e8/0x2cf0
[  448.233955][ T6006]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  448.233971][ T6006]  do_writepages+0x338/0x560
[  448.233991][ T6006]  ? do_raw_spin_unlock+0x4d/0x210
[  448.234035][ T6006]  filemap_fdatawrite+0x1e9/0x2f0
[  448.234054][ T6006]  ? __pfx_filemap_fdatawrite+0x10/0x10
[  448.234115][ T6006]  ? do_raw_spin_unlock+0x4d/0x210
[  448.234128][ T6006]  f2fs_sync_dirty_inodes+0x30e/0x830
[  448.234154][ T6006]  f2fs_write_checkpoint+0xa3d/0x2710
[  448.234192][ T6006]  ? __pfx_f2fs_write_checkpoint+0x10/0x10
[  448.234236][ T6006]  kill_f2fs_super+0x2dd/0x700
[  448.234260][ T6006]  ? __pfx_kill_f2fs_super+0x10/0x10
[  448.234283][ T6006]  ? call_rcu+0x64b/0x8b0
[  448.234295][ T6006]  ? lockdep_hardirqs_on+0x7a/0x110
[  448.234313][ T6006]  deactivate_locked_super+0xbc/0x110
[  448.234325][ T6006]  cleanup_mnt+0x3d3/0x460
[  448.234336][ T6006]  task_work_run+0x1d9/0x270
[  448.234350][ T6006]  ? __pfx_task_work_run+0x10/0x10
[  448.234364][ T6006]  exit_to_user_mode_loop+0x1fa/0x730
[  448.234374][ T6006]  ? rcu_is_watching+0x15/0xb0
[  448.234384][ T6006]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  448.234393][ T6006]  do_syscall_64+0x353/0x580
[  448.234401][ T6006]  ? trace_irq_disable+0x3b/0x140
[  448.234413][ T6006]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  448.234424][ T6006] RIP: 0033:0x7fe55f39f257
[  448.234437][ T6006] 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
[  448.234446][ T6006] RSP: 002b:00007ffd634636d8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
[  448.234460][ T6006] RAX: 0000000000000000 RBX: 00007fe55f43445c RCX: 00007fe55f39f257
[  448.234470][ T6006] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffd63463790
[  448.234477][ T6006] RBP: 00007ffd63463790 R08: 00007ffd63464790 R09: 00000000ffffffff
[  448.234484][ T6006] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffd63464820
[  448.234492][ T6006] R13: 00007fe55f43445c R14: 000000000006d650 R15: 00007ffd63464860
[  448.234520][ T6006]  </TASK>
[  448.336933][T10182] F2FS-fs (loop1): Small segment_count (9 < 1 * 24)
[  448.348166][ T6006] F2FS-fs (loop2): Stopped filesystem due to reason: 3
[  448.363686][T10182] F2FS-fs (loop1): Can't find valid F2FS filesystem in 1th superblock
[  448.434477][T10182] F2FS-fs (loop1): f2fs_recover_fsync_data: recovery fsync data, check_only: 0
[  448.440743][T10182] F2FS-fs (loop1): Try to recover 1th superblock, ret: 0
[  448.442859][T10182] F2FS-fs (loop1): Mounted with checkpoint version = 48b305e5
[  448.464105][ T6002] CPU: 0 UID: 0 PID: 6002 Comm: syz-executor Not tainted syzkaller #0 PREEMPT(full) 
[  448.464125][ T6002] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
[  448.464133][ T6002] Call Trace:
[  448.464139][ T6002]  <TASK>
[  448.464145][ T6002]  dump_stack_lvl+0xe8/0x150
[  448.464167][ T6002]  f2fs_stop_checkpoint+0x3f6/0x5d0
[  448.464187][ T6002]  f2fs_write_end_io+0x124b/0x1710
[  448.464216][ T6002]  __submit_merged_bio+0x258/0x6a0
[  448.464230][ T6002]  ? rcu_is_watching+0x15/0xb0
[  448.464248][ T6002]  __submit_merged_write_cond+0x3c9/0x4e0
[  448.464268][ T6002]  ? __pfx___submit_merged_write_cond+0x10/0x10
[  448.464298][ T6002]  f2fs_write_data_pages+0x2a27/0x36f0
[  448.464335][ T6002]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  448.464379][ T6002]  ? __pfx_hlock_conflict+0x10/0x10
[  448.464387][ T6002]  ? __bfs+0x153/0x290
[  448.464400][ T6002]  ? __pfx_hlock_conflict+0x10/0x10
[  448.464422][ T6002]  ? lockdep_unlock+0x5d/0xd0
[  448.464434][ T6002]  ? __lock_acquire+0x13e8/0x2cf0
[  448.464466][ T6002]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  448.464482][ T6002]  do_writepages+0x338/0x560
[  448.464502][ T6002]  ? do_raw_spin_unlock+0x4d/0x210
[  448.464515][ T6002]  filemap_fdatawrite+0x1e9/0x2f0
[  448.464553][ T6002]  ? __pfx_filemap_fdatawrite+0x10/0x10
[  448.464593][ T6002]  ? do_raw_spin_unlock+0x4d/0x210
[  448.464612][ T6002]  f2fs_sync_dirty_inodes+0x30e/0x830
[  448.464635][ T6002]  f2fs_write_checkpoint+0xa3d/0x2710
[  448.464668][ T6002]  ? __pfx_f2fs_write_checkpoint+0x10/0x10
[  448.464715][ T6002]  kill_f2fs_super+0x2dd/0x700
[  448.464737][ T6002]  ? __pfx_kill_f2fs_super+0x10/0x10
[  448.464758][ T6002]  ? call_rcu+0x64b/0x8b0
[  448.464769][ T6002]  ? lockdep_hardirqs_on+0x7a/0x110
[  448.464791][ T6002]  deactivate_locked_super+0xbc/0x110
[  448.464817][ T6002]  cleanup_mnt+0x3d3/0x460
[  448.464832][ T6002]  task_work_run+0x1d9/0x270
[  448.464852][ T6002]  ? __pfx_task_work_run+0x10/0x10
[  448.464871][ T6002]  exit_to_user_mode_loop+0x1fa/0x730
[  448.464887][ T6002]  ? rcu_is_watching+0x15/0xb0
[  448.464904][ T6002]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  448.464916][ T6002]  do_syscall_64+0x353/0x580
[  448.464929][ T6002]  ? trace_irq_disable+0x3b/0x140
[  448.464947][ T6002]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  448.464958][ T6002] RIP: 0033:0x7fbec519f257
[  448.464971][ T6002] 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
[  448.464980][ T6002] RSP: 002b:00007fff2e02d568 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
[  448.464992][ T6002] RAX: 0000000000000000 RBX: 00007fbec523445c RCX: 00007fbec519f257
[  448.465029][ T6002] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007fff2e02d620
[  448.465037][ T6002] RBP: 00007fff2e02d620 R08: 00007fff2e02e620 R09: 00000000ffffffff
[  448.465045][ T6002] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fff2e02e6b0
[  448.465052][ T6002] R13: 00007fbec523445c R14: 000000000006d73a R15: 00007fff2e02e6f0
[  448.465072][ T6002]  </TASK>
[  448.505305][   T24] loop2: lost filesystem error report for type 5 error -108
[  448.528388][T10184] F2FS-fs (loop0): Small segment_count (9 < 1 * 24)
[  448.558822][ T6002] F2FS-fs (loop1): Stopped filesystem due to reason: 3
[  448.568328][T10184] F2FS-fs (loop0): Can't find valid F2FS filesystem in 1th superblock
[  448.698727][T10184] F2FS-fs (loop0): f2fs_recover_fsync_data: recovery fsync data, check_only: 0
[  448.706383][T10184] F2FS-fs (loop0): Try to recover 1th superblock, ret: 0
[  448.714916][T10184] F2FS-fs (loop0): Mounted with checkpoint version = 48b305e5
[  448.757726][ T6001] CPU: 0 UID: 0 PID: 6001 Comm: syz-executor Not tainted syzkaller #0 PREEMPT(full) 
[  448.757741][ T6001] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
[  448.757746][ T6001] Call Trace:
[  448.757750][ T6001]  <TASK>
[  448.757754][ T6001]  dump_stack_lvl+0xe8/0x150
[  448.757769][ T6001]  f2fs_stop_checkpoint+0x3f6/0x5d0
[  448.757780][ T6001]  f2fs_write_end_io+0x124b/0x1710
[  448.757798][ T6001]  __submit_merged_bio+0x258/0x6a0
[  448.757806][ T6001]  ? rcu_is_watching+0x15/0xb0
[  448.757833][ T6001]  __submit_merged_write_cond+0x3c9/0x4e0
[  448.757845][ T6001]  ? __pfx___submit_merged_write_cond+0x10/0x10
[  448.757867][ T6001]  f2fs_write_data_pages+0x2a27/0x36f0
[  448.757881][ T6001]  ? __lock_acquire+0x683/0x2cf0
[  448.757913][ T6001]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  448.757956][ T6001]  ? __pfx_hlock_conflict+0x10/0x10
[  448.757967][ T6001]  ? __bfs+0x153/0x290
[  448.757977][ T6001]  ? __pfx_hlock_conflict+0x10/0x10
[  448.758016][ T6001]  ? lockdep_unlock+0x5d/0xd0
[  448.758030][ T6001]  ? __lock_acquire+0x13e8/0x2cf0
[  448.758050][ T6001]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  448.758065][ T6001]  do_writepages+0x338/0x560
[  448.758087][ T6001]  ? do_raw_spin_unlock+0x4d/0x210
[  448.758103][ T6001]  filemap_fdatawrite+0x1e9/0x2f0
[  448.758122][ T6001]  ? __pfx_filemap_fdatawrite+0x10/0x10
[  448.758164][ T6001]  ? do_raw_spin_unlock+0x4d/0x210
[  448.758181][ T6001]  f2fs_sync_dirty_inodes+0x30e/0x830
[  448.758208][ T6001]  f2fs_write_checkpoint+0xa3d/0x2710
[  448.758242][ T6001]  ? __pfx_f2fs_write_checkpoint+0x10/0x10
[  448.758269][ T6001]  kill_f2fs_super+0x2dd/0x700
[  448.758282][ T6001]  ? __pfx_kill_f2fs_super+0x10/0x10
[  448.758296][ T6001]  ? call_rcu+0x64b/0x8b0
[  448.758302][ T6001]  ? lockdep_hardirqs_on+0x7a/0x110
[  448.758317][ T6001]  deactivate_locked_super+0xbc/0x110
[  448.758328][ T6001]  cleanup_mnt+0x3d3/0x460
[  448.758338][ T6001]  task_work_run+0x1d9/0x270
[  448.758349][ T6001]  ? __pfx_task_work_run+0x10/0x10
[  448.758362][ T6001]  exit_to_user_mode_loop+0x1fa/0x730
[  448.758372][ T6001]  ? rcu_is_watching+0x15/0xb0
[  448.758382][ T6001]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  448.758390][ T6001]  do_syscall_64+0x353/0x580
[  448.758398][ T6001]  ? trace_irq_disable+0x3b/0x140
[  448.758409][ T6001]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  448.758416][ T6001] RIP: 0033:0x7f319199f257
[  448.758424][ T6001] 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
[  448.758430][ T6001] RSP: 002b:00007fff67960bb8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
[  448.758440][ T6001] RAX: 0000000000000000 RBX: 00007f3191a3445c RCX: 00007f319199f257
[  448.758445][ T6001] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007fff67960c70
[  448.758449][ T6001] RBP: 00007fff67960c70 R08: 00007fff67961c70 R09: 00000000ffffffff
[  448.758454][ T6001] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fff67961d00
[  448.758458][ T6001] R13: 00007f3191a3445c R14: 000000000006d85c R15: 00007fff67961d40
[  448.758469][ T6001]  </TASK>
[  448.758473][ T6001] F2FS-fs (loop0): Stopped filesystem due to reason: 3
[  449.020613][T10190] set_capacity_and_notify: 5 callbacks suppressed
[  449.020624][T10190] loop2: detected capacity change from 0 to 40427
[  449.037904][T10190] F2FS-fs (loop2): Small segment_count (9 < 1 * 24)
[  449.040157][T10190] F2FS-fs (loop2): Can't find valid F2FS filesystem in 1th superblock
[  449.071603][T10190] F2FS-fs (loop2): f2fs_recover_fsync_data: recovery fsync data, check_only: 0
[  449.077750][T10190] F2FS-fs (loop2): Try to recover 1th superblock, ret: 0
[  449.079958][T10190] F2FS-fs (loop2): Mounted with checkpoint version = 48b305e5
[  449.106287][ T6006] CPU: 1 UID: 0 PID: 6006 Comm: syz-executor Not tainted syzkaller #0 PREEMPT(full) 
[  449.106302][ T6006] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
[  449.106329][ T6006] Call Trace:
[  449.106336][ T6006]  <TASK>
[  449.106340][ T6006]  dump_stack_lvl+0xe8/0x150
[  449.106358][ T6006]  f2fs_stop_checkpoint+0x3f6/0x5d0
[  449.106371][ T6006]  f2fs_write_end_io+0x124b/0x1710
[  449.106390][ T6006]  __submit_merged_bio+0x258/0x6a0
[  449.106399][ T6006]  ? rcu_is_watching+0x15/0xb0
[  449.106412][ T6006]  __submit_merged_write_cond+0x3c9/0x4e0
[  449.106425][ T6006]  ? __pfx___submit_merged_write_cond+0x10/0x10
[  449.106441][ T6006]  f2fs_write_data_pages+0x2a27/0x36f0
[  449.106451][ T6006]  ? __lock_acquire+0x683/0x2cf0
[  449.106473][ T6006]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  449.106498][ T6006]  ? __pfx_hlock_conflict+0x10/0x10
[  449.106504][ T6006]  ? __bfs+0x153/0x290
[  449.106518][ T6006]  ? __pfx_hlock_conflict+0x10/0x10
[  449.106531][ T6006]  ? lockdep_unlock+0x5d/0xd0
[  449.106539][ T6006]  ? __lock_acquire+0x13e8/0x2cf0
[  449.106557][ T6006]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  449.106567][ T6006]  do_writepages+0x338/0x560
[  449.106581][ T6006]  ? do_raw_spin_unlock+0x4d/0x210
[  449.106591][ T6006]  filemap_fdatawrite+0x1e9/0x2f0
[  449.106604][ T6006]  ? __pfx_filemap_fdatawrite+0x10/0x10
[  449.106629][ T6006]  ? do_raw_spin_unlock+0x4d/0x210
[  449.106638][ T6006]  f2fs_sync_dirty_inodes+0x30e/0x830
[  449.106654][ T6006]  f2fs_write_checkpoint+0xa3d/0x2710
[  449.106675][ T6006]  ? __pfx_f2fs_write_checkpoint+0x10/0x10
[  449.106703][ T6006]  kill_f2fs_super+0x2dd/0x700
[  449.106717][ T6006]  ? __pfx_kill_f2fs_super+0x10/0x10
[  449.106732][ T6006]  ? call_rcu+0x64b/0x8b0
[  449.106738][ T6006]  ? lockdep_hardirqs_on+0x7a/0x110
[  449.106752][ T6006]  deactivate_locked_super+0xbc/0x110
[  449.106765][ T6006]  cleanup_mnt+0x3d3/0x460
[  449.106774][ T6006]  task_work_run+0x1d9/0x270
[  449.106788][ T6006]  ? __pfx_task_work_run+0x10/0x10
[  449.106801][ T6006]  exit_to_user_mode_loop+0x1fa/0x730
[  449.106811][ T6006]  ? rcu_is_watching+0x15/0xb0
[  449.106821][ T6006]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  449.106829][ T6006]  do_syscall_64+0x353/0x580
[  449.106838][ T6006]  ? trace_irq_disable+0x3b/0x140
[  449.106850][ T6006]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  449.106858][ T6006] RIP: 0033:0x7fe55f39f257
[  449.106867][ T6006] 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
[  449.106873][ T6006] RSP: 002b:00007ffd634636d8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
[  449.106882][ T6006] RAX: 0000000000000000 RBX: 00007fe55f43445c RCX: 00007fe55f39f257
[  449.106888][ T6006] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffd63463790
[  449.106892][ T6006] RBP: 00007ffd63463790 R08: 00007ffd63464790 R09: 00000000ffffffff
[  449.106897][ T6006] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffd63464820
[  449.106902][ T6006] R13: 00007fe55f43445c R14: 000000000006d9ae R15: 00007ffd63464860
[  449.106913][ T6006]  </TASK>
[  449.107287][ T6006] F2FS-fs (loop2): Stopped filesystem due to reason: 3
[  449.257027][T10194] loop0: detected capacity change from 0 to 40427
[  449.264566][T10194] F2FS-fs (loop0): Small segment_count (9 < 1 * 24)
[  449.277718][T10194] F2FS-fs (loop0): Can't find valid F2FS filesystem in 1th superblock
[  449.288131][T10192] loop1: detected capacity change from 0 to 40427
[  449.317137][T10192] F2FS-fs (loop1): Small segment_count (9 < 1 * 24)
[  449.331035][T10192] F2FS-fs (loop1): Can't find valid F2FS filesystem in 1th superblock
[  449.377051][T10194] F2FS-fs (loop0): f2fs_recover_fsync_data: recovery fsync data, check_only: 0
[  449.387656][T10194] F2FS-fs (loop0): Try to recover 1th superblock, ret: 0
[  449.391970][T10194] F2FS-fs (loop0): Mounted with checkpoint version = 48b305e5
[  449.397829][T10192] F2FS-fs (loop1): f2fs_recover_fsync_data: recovery fsync data, check_only: 0
[  449.409404][T10192] F2FS-fs (loop1): Try to recover 1th superblock, ret: 0
[  449.412156][T10192] F2FS-fs (loop1): Mounted with checkpoint version = 48b305e5
[  449.419490][ T6001] CPU: 1 UID: 0 PID: 6001 Comm: syz-executor Not tainted syzkaller #0 PREEMPT(full) 
[  449.419505][ T6001] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
[  449.419510][ T6001] Call Trace:
[  449.419515][ T6001]  <TASK>
[  449.419519][ T6001]  dump_stack_lvl+0xe8/0x150
[  449.419535][ T6001]  f2fs_stop_checkpoint+0x3f6/0x5d0
[  449.419548][ T6001]  f2fs_write_end_io+0x124b/0x1710
[  449.419566][ T6001]  __submit_merged_bio+0x258/0x6a0
[  449.419574][ T6001]  ? rcu_is_watching+0x15/0xb0
[  449.419588][ T6001]  __submit_merged_write_cond+0x3c9/0x4e0
[  449.419599][ T6001]  ? __pfx___submit_merged_write_cond+0x10/0x10
[  449.419616][ T6001]  f2fs_write_data_pages+0x2a27/0x36f0
[  449.419626][ T6001]  ? __lock_acquire+0x683/0x2cf0
[  449.419647][ T6001]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  449.419673][ T6001]  ? __pfx_hlock_conflict+0x10/0x10
[  449.419680][ T6001]  ? __bfs+0x153/0x290
[  449.419688][ T6001]  ? __pfx_hlock_conflict+0x10/0x10
[  449.419700][ T6001]  ? lockdep_unlock+0x5d/0xd0
[  449.419707][ T6001]  ? __lock_acquire+0x13e8/0x2cf0
[  449.419725][ T6001]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  449.419735][ T6001]  do_writepages+0x338/0x560
[  449.419749][ T6001]  ? do_raw_spin_unlock+0x4d/0x210
[  449.419758][ T6001]  filemap_fdatawrite+0x1e9/0x2f0
[  449.419770][ T6001]  ? __pfx_filemap_fdatawrite+0x10/0x10
[  449.419794][ T6001]  ? do_raw_spin_unlock+0x4d/0x210
[  449.419803][ T6001]  f2fs_sync_dirty_inodes+0x30e/0x830
[  449.419819][ T6001]  f2fs_write_checkpoint+0xa3d/0x2710
[  449.419839][ T6001]  ? __pfx_f2fs_write_checkpoint+0x10/0x10
[  449.419867][ T6001]  kill_f2fs_super+0x2dd/0x700
[  449.419880][ T6001]  ? __pfx_kill_f2fs_super+0x10/0x10
[  449.419894][ T6001]  ? call_rcu+0x64b/0x8b0
[  449.419900][ T6001]  ? lockdep_hardirqs_on+0x7a/0x110
[  449.419915][ T6001]  deactivate_locked_super+0xbc/0x110
[  449.419927][ T6001]  cleanup_mnt+0x3d3/0x460
[  449.419936][ T6001]  task_work_run+0x1d9/0x270
[  449.419948][ T6001]  ? __pfx_task_work_run+0x10/0x10
[  449.419961][ T6001]  exit_to_user_mode_loop+0x1fa/0x730
[  449.419971][ T6001]  ? rcu_is_watching+0x15/0xb0
[  449.420013][ T6001]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  449.420024][ T6001]  do_syscall_64+0x353/0x580
[  449.420032][ T6001]  ? trace_irq_disable+0x3b/0x140
[  449.420044][ T6001]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  449.420051][ T6001] RIP: 0033:0x7f319199f257
[  449.420060][ T6001] 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
[  449.420066][ T6001] RSP: 002b:00007fff67960bb8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
[  449.420075][ T6001] RAX: 0000000000000000 RBX: 00007f3191a3445c RCX: 00007f319199f257
[  449.420080][ T6001] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007fff67960c70
[  449.420084][ T6001] RBP: 00007fff67960c70 R08: 00007fff67961c70 R09: 00000000ffffffff
[  449.420089][ T6001] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fff67961d00
[  449.420094][ T6001] R13: 00007f3191a3445c R14: 000000000006daf3 R15: 00007fff67961d40
[  449.420105][ T6001]  </TASK>
[  449.420108][ T6001] F2FS-fs (loop0): Stopped filesystem due to reason: 3
[  449.534424][ T6002] CPU: 0 UID: 0 PID: 6002 Comm: syz-executor Not tainted syzkaller #0 PREEMPT(full) 
[  449.534456][ T6002] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
[  449.534460][ T6002] Call Trace:
[  449.534465][ T6002]  <TASK>
[  449.534469][ T6002]  dump_stack_lvl+0xe8/0x150
[  449.534483][ T6002]  f2fs_stop_checkpoint+0x3f6/0x5d0
[  449.534495][ T6002]  f2fs_write_end_io+0x124b/0x1710
[  449.534512][ T6002]  __submit_merged_bio+0x258/0x6a0
[  449.534520][ T6002]  ? rcu_is_watching+0x15/0xb0
[  449.534533][ T6002]  __submit_merged_write_cond+0x3c9/0x4e0
[  449.534545][ T6002]  ? __pfx___submit_merged_write_cond+0x10/0x10
[  449.534561][ T6002]  f2fs_write_data_pages+0x2a27/0x36f0
[  449.534571][ T6002]  ? __lock_acquire+0x683/0x2cf0
[  449.534607][ T6002]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  449.534634][ T6002]  ? __pfx_hlock_conflict+0x10/0x10
[  449.534640][ T6002]  ? __bfs+0x153/0x290
[  449.534648][ T6002]  ? __pfx_hlock_conflict+0x10/0x10
[  449.534661][ T6002]  ? lockdep_unlock+0x5d/0xd0
[  449.534668][ T6002]  ? __lock_acquire+0x13e8/0x2cf0
[  449.534686][ T6002]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  449.534696][ T6002]  do_writepages+0x338/0x560
[  449.534709][ T6002]  ? do_raw_spin_unlock+0x4d/0x210
[  449.534718][ T6002]  filemap_fdatawrite+0x1e9/0x2f0
[  449.534729][ T6002]  ? __pfx_filemap_fdatawrite+0x10/0x10
[  449.534754][ T6002]  ? do_raw_spin_unlock+0x4d/0x210
[  449.534762][ T6002]  f2fs_sync_dirty_inodes+0x30e/0x830
[  449.534783][ T6002]  f2fs_write_checkpoint+0xa3d/0x2710
[  449.534804][ T6002]  ? __pfx_f2fs_write_checkpoint+0x10/0x10
[  449.534832][ T6002]  kill_f2fs_super+0x2dd/0x700
[  449.534845][ T6002]  ? __pfx_kill_f2fs_super+0x10/0x10
[  449.534859][ T6002]  ? call_rcu+0x64b/0x8b0
[  449.534865][ T6002]  ? lockdep_hardirqs_on+0x7a/0x110
[  449.534878][ T6002]  deactivate_locked_super+0xbc/0x110
[  449.534889][ T6002]  cleanup_mnt+0x3d3/0x460
[  449.534899][ T6002]  task_work_run+0x1d9/0x270
[  449.534911][ T6002]  ? __pfx_task_work_run+0x10/0x10
[  449.534925][ T6002]  exit_to_user_mode_loop+0x1fa/0x730
[  449.534934][ T6002]  ? rcu_is_watching+0x15/0xb0
[  449.534944][ T6002]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  449.534952][ T6002]  do_syscall_64+0x353/0x580
[  449.534960][ T6002]  ? trace_irq_disable+0x3b/0x140
[  449.534971][ T6002]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  449.534978][ T6002] RIP: 0033:0x7fbec519f257
[  449.535017][ T6002] 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
[  449.535027][ T6002] RSP: 002b:00007fff2e02d568 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
[  449.535041][ T6002] RAX: 0000000000000000 RBX: 00007fbec523445c RCX: 00007fbec519f257
[  449.535049][ T6002] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007fff2e02d620
[  449.535056][ T6002] RBP: 00007fff2e02d620 R08: 00007fff2e02e620 R09: 00000000ffffffff
[  449.535064][ T6002] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fff2e02e6b0
[  449.535071][ T6002] R13: 00007fbec523445c R14: 000000000006d8ef R15: 00007fff2e02e6f0
[  449.535084][ T6002]  </TASK>
[  449.676126][T10200] loop2: detected capacity change from 0 to 40427
[  449.685702][T10200] F2FS-fs (loop2): Small segment_count (9 < 1 * 24)
[  449.688392][T10200] F2FS-fs (loop2): Can't find valid F2FS filesystem in 1th superblock
[  449.695733][ T6002] F2FS-fs (loop1): Stopped filesystem due to reason: 3
[  449.735372][T10200] F2FS-fs (loop2): f2fs_recover_fsync_data: recovery fsync data, check_only: 0
[  449.740074][T10200] F2FS-fs (loop2): Try to recover 1th superblock, ret: 0
[  449.742286][T10200] F2FS-fs (loop2): Mounted with checkpoint version = 48b305e5
[  449.758569][ T6006] CPU: 1 UID: 0 PID: 6006 Comm: syz-executor Not tainted syzkaller #0 PREEMPT(full) 
[  449.758593][ T6006] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
[  449.758602][ T6006] Call Trace:
[  449.758609][ T6006]  <TASK>
[  449.758615][ T6006]  dump_stack_lvl+0xe8/0x150
[  449.758639][ T6006]  f2fs_stop_checkpoint+0x3f6/0x5d0
[  449.758661][ T6006]  f2fs_write_end_io+0x124b/0x1710
[  449.758691][ T6006]  __submit_merged_bio+0x258/0x6a0
[  449.758706][ T6006]  ? rcu_is_watching+0x15/0xb0
[  449.758728][ T6006]  __submit_merged_write_cond+0x3c9/0x4e0
[  449.758748][ T6006]  ? __pfx___submit_merged_write_cond+0x10/0x10
[  449.758778][ T6006]  f2fs_write_data_pages+0x2a27/0x36f0
[  449.758817][ T6006]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  449.758862][ T6006]  ? __pfx_hlock_conflict+0x10/0x10
[  449.758873][ T6006]  ? __bfs+0x153/0x290
[  449.758888][ T6006]  ? __pfx_hlock_conflict+0x10/0x10
[  449.758911][ T6006]  ? lockdep_unlock+0x5d/0xd0
[  449.758924][ T6006]  ? __lock_acquire+0x13e8/0x2cf0
[  449.758953][ T6006]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  449.758970][ T6006]  do_writepages+0x338/0x560
[  449.759028][ T6006]  ? do_raw_spin_unlock+0x4d/0x210
[  449.759045][ T6006]  filemap_fdatawrite+0x1e9/0x2f0
[  449.759065][ T6006]  ? __pfx_filemap_fdatawrite+0x10/0x10
[  449.759110][ T6006]  ? do_raw_spin_unlock+0x4d/0x210
[  449.759125][ T6006]  f2fs_sync_dirty_inodes+0x30e/0x830
[  449.759152][ T6006]  f2fs_write_checkpoint+0xa3d/0x2710
[  449.759190][ T6006]  ? __pfx_f2fs_write_checkpoint+0x10/0x10
[  449.759242][ T6006]  kill_f2fs_super+0x2dd/0x700
[  449.759284][ T6006]  ? __pfx_kill_f2fs_super+0x10/0x10
[  449.759311][ T6006]  ? call_rcu+0x64b/0x8b0
[  449.759322][ T6006]  ? lockdep_hardirqs_on+0x7a/0x110
[  449.759346][ T6006]  deactivate_locked_super+0xbc/0x110
[  449.759364][ T6006]  cleanup_mnt+0x3d3/0x460
[  449.759381][ T6006]  task_work_run+0x1d9/0x270
[  449.759400][ T6006]  ? __pfx_task_work_run+0x10/0x10
[  449.759422][ T6006]  exit_to_user_mode_loop+0x1fa/0x730
[  449.759437][ T6006]  ? rcu_is_watching+0x15/0xb0
[  449.759454][ T6006]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  449.759467][ T6006]  do_syscall_64+0x353/0x580
[  449.759482][ T6006]  ? trace_irq_disable+0x3b/0x140
[  449.759498][ T6006]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  449.759508][ T6006] RIP: 0033:0x7fe55f39f257
[  449.759516][ T6006] 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
[  449.759523][ T6006] RSP: 002b:00007ffd634636d8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
[  449.759533][ T6006] RAX: 0000000000000000 RBX: 00007fe55f43445c RCX: 00007fe55f39f257
[  449.759538][ T6006] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffd63463790
[  449.759542][ T6006] RBP: 00007ffd63463790 R08: 00007ffd63464790 R09: 00000000ffffffff
[  449.759547][ T6006] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffd63464820
[  449.759552][ T6006] R13: 00007fe55f43445c R14: 000000000006dc43 R15: 00007ffd63464860
[  449.759563][ T6006]  </TASK>
[  449.759855][ T6006] F2FS-fs (loop2): Stopped filesystem due to reason: 3
[  449.969302][T10206] loop0: detected capacity change from 0 to 40427
[  449.976895][T10206] F2FS-fs (loop0): Small segment_count (9 < 1 * 24)
[  449.992223][T10206] F2FS-fs (loop0): Can't find valid F2FS filesystem in 1th superblock
[  450.060098][T10206] F2FS-fs (loop0): f2fs_recover_fsync_data: recovery fsync data, check_only: 0
[  450.071957][T10206] F2FS-fs (loop0): Try to recover 1th superblock, ret: 0
[  450.074889][T10206] F2FS-fs (loop0): Mounted with checkpoint version = 48b305e5
[  450.097456][ T6001] CPU: 0 UID: 0 PID: 6001 Comm: syz-executor Not tainted syzkaller #0 PREEMPT(full) 
[  450.097470][ T6001] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
[  450.097475][ T6001] Call Trace:
[  450.097479][ T6001]  <TASK>
[  450.097483][ T6001]  dump_stack_lvl+0xe8/0x150
[  450.097499][ T6001]  f2fs_stop_checkpoint+0x3f6/0x5d0
[  450.097510][ T6001]  f2fs_write_end_io+0x124b/0x1710
[  450.097528][ T6001]  __submit_merged_bio+0x258/0x6a0
[  450.097537][ T6001]  ? rcu_is_watching+0x15/0xb0
[  450.097549][ T6001]  __submit_merged_write_cond+0x3c9/0x4e0
[  450.097561][ T6001]  ? __pfx___submit_merged_write_cond+0x10/0x10
[  450.097577][ T6001]  f2fs_write_data_pages+0x2a27/0x36f0
[  450.097599][ T6001]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  450.097622][ T6001]  ? __pfx_hlock_conflict+0x10/0x10
[  450.097629][ T6001]  ? __bfs+0x153/0x290
[  450.097637][ T6001]  ? __pfx_hlock_conflict+0x10/0x10
[  450.097649][ T6001]  ? lockdep_unlock+0x5d/0xd0
[  450.097675][ T6001]  ? __lock_acquire+0x13e8/0x2cf0
[  450.097695][ T6001]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  450.097705][ T6001]  do_writepages+0x338/0x560
[  450.097718][ T6001]  ? do_raw_spin_unlock+0x4d/0x210
[  450.097728][ T6001]  filemap_fdatawrite+0x1e9/0x2f0
[  450.097739][ T6001]  ? __pfx_filemap_fdatawrite+0x10/0x10
[  450.097763][ T6001]  ? do_raw_spin_unlock+0x4d/0x210
[  450.097777][ T6001]  f2fs_sync_dirty_inodes+0x30e/0x830
[  450.097793][ T6001]  f2fs_write_checkpoint+0xa3d/0x2710
[  450.097814][ T6001]  ? __pfx_f2fs_write_checkpoint+0x10/0x10
[  450.097842][ T6001]  kill_f2fs_super+0x2dd/0x700
[  450.097855][ T6001]  ? __pfx_kill_f2fs_super+0x10/0x10
[  450.097869][ T6001]  ? call_rcu+0x64b/0x8b0
[  450.097875][ T6001]  ? lockdep_hardirqs_on+0x7a/0x110
[  450.097889][ T6001]  deactivate_locked_super+0xbc/0x110
[  450.097900][ T6001]  cleanup_mnt+0x3d3/0x460
[  450.097909][ T6001]  task_work_run+0x1d9/0x270
[  450.097922][ T6001]  ? __pfx_task_work_run+0x10/0x10
[  450.097935][ T6001]  exit_to_user_mode_loop+0x1fa/0x730
[  450.097944][ T6001]  ? rcu_is_watching+0x15/0xb0
[  450.097954][ T6001]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  450.097962][ T6001]  do_syscall_64+0x353/0x580
[  450.097970][ T6001]  ? trace_irq_disable+0x3b/0x140
[  450.098011][ T6001]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  450.098021][ T6001] RIP: 0033:0x7f319199f257
[  450.098031][ T6001] 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
[  450.098041][ T6001] RSP: 002b:00007fff67960bb8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
[  450.098049][ T6001] RAX: 0000000000000000 RBX: 00007f3191a3445c RCX: 00007f319199f257
[  450.098054][ T6001] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007fff67960c70
[  450.098058][ T6001] RBP: 00007fff67960c70 R08: 00007fff67961c70 R09: 00000000ffffffff
[  450.098063][ T6001] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fff67961d00
[  450.098068][ T6001] R13: 00007f3191a3445c R14: 000000000006dd9b R15: 00007fff67961d40
[  450.098079][ T6001]  </TASK>
[  450.100056][ T6001] F2FS-fs (loop0): Stopped filesystem due to reason: 3
[  450.230790][T10212] loop2: detected capacity change from 0 to 40427
[  450.235060][T10212] F2FS-fs (loop2): Small segment_count (9 < 1 * 24)
[  450.238028][T10212] F2FS-fs (loop2): Can't find valid F2FS filesystem in 1th superblock
[  450.287600][T10212] F2FS-fs (loop2): f2fs_recover_fsync_data: recovery fsync data, check_only: 0
[  450.297359][T10212] F2FS-fs (loop2): Try to recover 1th superblock, ret: 0
[  450.300277][T10212] F2FS-fs (loop2): Mounted with checkpoint version = 48b305e5
[  450.314513][T10212] bio_check_eod: 41 callbacks suppressed
[  450.314528][T10212] syz.2.1011: attempt to access beyond end of device
[  450.314528][T10212] loop2: rw=2049, sector=53248, nr_sectors = 976 limit=40427
[  450.333189][T10212] syz.2.1011: attempt to access beyond end of device
[  450.333189][T10212] loop2: rw=8423425, sector=54224, nr_sectors = 8 limit=40427
[  450.370908][ T6006] syz-executor: attempt to access beyond end of device
[  450.370908][ T6006] loop2: rw=2049, sector=45096, nr_sectors = 8 limit=40427
[  450.403278][ T6006] CPU: 1 UID: 0 PID: 6006 Comm: syz-executor Not tainted syzkaller #0 PREEMPT(full) 
[  450.403302][ T6006] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
[  450.403311][ T6006] Call Trace:
[  450.403318][ T6006]  <TASK>
[  450.403325][ T6006]  dump_stack_lvl+0xe8/0x150
[  450.403353][ T6006]  f2fs_stop_checkpoint+0x3f6/0x5d0
[  450.403376][ T6006]  f2fs_write_end_io+0x124b/0x1710
[  450.403410][ T6006]  __submit_merged_bio+0x258/0x6a0
[  450.403426][ T6006]  ? rcu_is_watching+0x15/0xb0
[  450.403450][ T6006]  __submit_merged_write_cond+0x3c9/0x4e0
[  450.403473][ T6006]  ? __pfx___submit_merged_write_cond+0x10/0x10
[  450.403507][ T6006]  f2fs_write_data_pages+0x2a27/0x36f0
[  450.403560][ T6006]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  450.403611][ T6006]  ? __pfx_hlock_conflict+0x10/0x10
[  450.403624][ T6006]  ? __bfs+0x153/0x290
[  450.403640][ T6006]  ? __pfx_hlock_conflict+0x10/0x10
[  450.403666][ T6006]  ? lockdep_unlock+0x5d/0xd0
[  450.403680][ T6006]  ? __lock_acquire+0x13e8/0x2cf0
[  450.403717][ T6006]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  450.403736][ T6006]  do_writepages+0x338/0x560
[  450.403762][ T6006]  ? do_raw_spin_unlock+0x4d/0x210
[  450.403780][ T6006]  filemap_fdatawrite+0x1e9/0x2f0
[  450.403802][ T6006]  ? __pfx_filemap_fdatawrite+0x10/0x10
[  450.403852][ T6006]  ? do_raw_spin_unlock+0x4d/0x210
[  450.403870][ T6006]  f2fs_sync_dirty_inodes+0x30e/0x830
[  450.403900][ T6006]  f2fs_write_checkpoint+0xa3d/0x2710
[  450.403943][ T6006]  ? __pfx_f2fs_write_checkpoint+0x10/0x10
[  450.404031][ T6006]  kill_f2fs_super+0x2dd/0x700
[  450.404059][ T6006]  ? __pfx_kill_f2fs_super+0x10/0x10
[  450.404087][ T6006]  ? call_rcu+0x64b/0x8b0
[  450.404099][ T6006]  ? lockdep_hardirqs_on+0x7a/0x110
[  450.404146][ T6006]  deactivate_locked_super+0xbc/0x110
[  450.404169][ T6006]  cleanup_mnt+0x3d3/0x460
[  450.404187][ T6006]  task_work_run+0x1d9/0x270
[  450.404210][ T6006]  ? __pfx_task_work_run+0x10/0x10
[  450.404236][ T6006]  exit_to_user_mode_loop+0x1fa/0x730
[  450.404253][ T6006]  ? rcu_is_watching+0x15/0xb0
[  450.404272][ T6006]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  450.404287][ T6006]  do_syscall_64+0x353/0x580
[  450.404308][ T6006]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  450.404321][ T6006] RIP: 0033:0x7fe55f39f257
[  450.404336][ T6006] 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
[  450.404347][ T6006] RSP: 002b:00007ffd634636d8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
[  450.404364][ T6006] RAX: 0000000000000000 RBX: 00007fe55f43445c RCX: 00007fe55f39f257
[  450.404373][ T6006] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffd63463790
[  450.404382][ T6006] RBP: 00007ffd63463790 R08: 00007ffd63464790 R09: 00000000ffffffff
[  450.404391][ T6006] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffd63464820
[  450.404400][ T6006] R13: 00007fe55f43445c R14: 000000000006de96 R15: 00007ffd63464860
[  450.404423][ T6006]  </TASK>
[  450.523753][ T6006] F2FS-fs (loop2): Stopped filesystem due to reason: 3
[  450.539041][   T24] loop2: lost filesystem error report for type 5 error -108
[  450.540051][T10210] loop1: detected capacity change from 0 to 40427
[  450.547886][T10210] F2FS-fs (loop1): Small segment_count (9 < 1 * 24)
[  450.550682][T10210] F2FS-fs (loop1): Can't find valid F2FS filesystem in 1th superblock
[  450.773765][T10210] F2FS-fs (loop1): f2fs_recover_fsync_data: recovery fsync data, check_only: 0
[  450.782755][T10216] loop0: detected capacity change from 0 to 40427
[  450.795531][T10216] F2FS-fs (loop0): Small segment_count (9 < 1 * 24)
[  450.799701][T10210] F2FS-fs (loop1): Try to recover 1th superblock, ret: 0
[  450.809756][T10216] F2FS-fs (loop0): Can't find valid F2FS filesystem in 1th superblock
[  450.810029][T10210] F2FS-fs (loop1): Mounted with checkpoint version = 48b305e5
[  450.824034][   T33] kauditd_printk_skb: 24 callbacks suppressed
[  450.824048][   T33] audit: type=1800 audit(1785887742.027:1989): pid=10210 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
[  450.851406][   T33] audit: type=1800 audit(1785887742.057:1990): pid=10210 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
[  450.885886][T10210] syz.1.1010: attempt to access beyond end of device
[  450.885886][T10210] loop1: rw=2049, sector=53248, nr_sectors = 976 limit=40427
[  450.905334][T10223] syz.1.1010: attempt to access beyond end of device
[  450.905334][T10223] loop1: rw=8423425, sector=54224, nr_sectors = 8 limit=40427
[  450.911378][T10216] F2FS-fs (loop0): f2fs_recover_fsync_data: recovery fsync data, check_only: 0
[  450.923563][T10216] F2FS-fs (loop0): Try to recover 1th superblock, ret: 0
[  450.930823][T10216] F2FS-fs (loop0): Mounted with checkpoint version = 48b305e5
[  450.942081][   T33] audit: type=1800 audit(1785887742.147:1991): pid=10216 uid=0 auid=4294967295 ses=4294967295 subj=unconfined op=collect_data cause=failed(directio) comm="syz.0.1012" name="file1" dev="loop0" ino=10 res=0 errno=0
[  450.947641][T10216] syz.0.1012: attempt to access beyond end of device
[  450.947641][T10216] loop0: rw=2049, sector=53248, nr_sectors = 976 limit=40427
[  450.965701][ T6002] syz-executor: attempt to access beyond end of device
[  450.965701][ T6002] loop1: rw=2049, sector=45096, nr_sectors = 8 limit=40427
[  450.969949][T10216] syz.0.1012: attempt to access beyond end of device
[  450.969949][T10216] loop0: rw=8423425, sector=54224, nr_sectors = 8 limit=40427
[  450.979831][   T33] audit: type=1800 audit(1785887742.147:1992): pid=10216 uid=0 auid=4294967295 ses=4294967295 subj=unconfined op=collect_data cause=failed(directio) comm="syz.0.1012" name="file1" dev="loop0" ino=10 res=0 errno=0
[  450.993884][ T6002] CPU: 1 UID: 0 PID: 6002 Comm: syz-executor Not tainted syzkaller #0 PREEMPT(full) 
[  450.993904][ T6002] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
[  450.993913][ T6002] Call Trace:
[  450.993920][ T6002]  <TASK>
[  450.993926][ T6002]  dump_stack_lvl+0xe8/0x150
[  450.993952][ T6002]  f2fs_stop_checkpoint+0x3f6/0x5d0
[  450.994005][ T6002]  f2fs_write_end_io+0x124b/0x1710
[  450.994036][ T6002]  __submit_merged_bio+0x258/0x6a0
[  450.994051][ T6002]  ? rcu_is_watching+0x15/0xb0
[  450.994074][ T6002]  __submit_merged_write_cond+0x3c9/0x4e0
[  450.994096][ T6002]  ? __pfx___submit_merged_write_cond+0x10/0x10
[  450.994128][ T6002]  f2fs_write_data_pages+0x2a27/0x36f0
[  450.994145][ T6002]  ? __lock_acquire+0x683/0x2cf0
[  450.994185][ T6002]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  450.994234][ T6002]  ? __pfx_hlock_conflict+0x10/0x10
[  450.994245][ T6002]  ? __bfs+0x153/0x290
[  450.994259][ T6002]  ? __pfx_hlock_conflict+0x10/0x10
[  450.994283][ T6002]  ? lockdep_unlock+0x5d/0xd0
[  450.994296][ T6002]  ? __lock_acquire+0x13e8/0x2cf0
[  450.994330][ T6002]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  450.994349][ T6002]  do_writepages+0x338/0x560
[  450.994372][ T6002]  ? do_raw_spin_unlock+0x4d/0x210
[  450.994390][ T6002]  filemap_fdatawrite+0x1e9/0x2f0
[  450.994409][ T6002]  ? __pfx_filemap_fdatawrite+0x10/0x10
[  450.994456][ T6002]  ? do_raw_spin_unlock+0x4d/0x210
[  450.994480][ T6002]  f2fs_sync_dirty_inodes+0x30e/0x830
[  450.994508][ T6002]  f2fs_write_checkpoint+0xa3d/0x2710
[  450.994549][ T6002]  ? __pfx_f2fs_write_checkpoint+0x10/0x10
[  450.994621][ T6002]  kill_f2fs_super+0x2dd/0x700
[  450.994647][ T6002]  ? __pfx_kill_f2fs_super+0x10/0x10
[  450.994673][ T6002]  ? call_rcu+0x64b/0x8b0
[  450.994686][ T6002]  ? lockdep_hardirqs_on+0x7a/0x110
[  450.994710][ T6002]  deactivate_locked_super+0xbc/0x110
[  450.994731][ T6002]  cleanup_mnt+0x3d3/0x460
[  450.994748][ T6002]  task_work_run+0x1d9/0x270
[  450.994769][ T6002]  ? __pfx_task_work_run+0x10/0x10
[  450.994794][ T6002]  exit_to_user_mode_loop+0x1fa/0x730
[  450.994809][ T6002]  ? rcu_is_watching+0x15/0xb0
[  450.994828][ T6002]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  450.994843][ T6002]  do_syscall_64+0x353/0x580
[  450.994856][ T6002]  ? trace_irq_disable+0x3b/0x140
[  450.994877][ T6002]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  450.994891][ T6002] RIP: 0033:0x7fbec519f257
[  450.994906][ T6002] 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
[  450.994916][ T6002] RSP: 002b:00007fff2e02d568 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
[  450.994932][ T6002] RAX: 0000000000000000 RBX: 00007fbec523445c RCX: 00007fbec519f257
[  450.994939][ T6002] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007fff2e02d620
[  450.994948][ T6002] RBP: 00007fff2e02d620 R08: 00007fff2e02e620 R09: 00000000ffffffff
[  450.994956][ T6002] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fff2e02e6b0
[  450.994988][ T6002] R13: 00007fbec523445c R14: 000000000006e0e5 R15: 00007fff2e02e6f0
[  450.995010][ T6002]  </TASK>
[  451.122425][ T6001] syz-executor: attempt to access beyond end of device
[  451.122425][ T6001] loop0: rw=2049, sector=45096, nr_sectors = 8 limit=40427
[  451.128909][T10222] loop2: detected capacity change from 0 to 40427
[  451.130098][ T6002] F2FS-fs (loop1): Stopped filesystem due to reason: 3
[  451.132250][ T6001] CPU: 0 UID: 0 PID: 6001 Comm: syz-executor Not tainted syzkaller #0 PREEMPT(full) 
[  451.132262][ T6001] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
[  451.132267][ T6001] Call Trace:
[  451.132271][ T6001]  <TASK>
[  451.132274][ T6001]  dump_stack_lvl+0xe8/0x150
[  451.132290][ T6001]  f2fs_stop_checkpoint+0x3f6/0x5d0
[  451.132301][ T6001]  f2fs_write_end_io+0x124b/0x1710
[  451.132319][ T6001]  __submit_merged_bio+0x258/0x6a0
[  451.132328][ T6001]  ? rcu_is_watching+0x15/0xb0
[  451.132340][ T6001]  __submit_merged_write_cond+0x3c9/0x4e0
[  451.132353][ T6001]  ? __pfx___submit_merged_write_cond+0x10/0x10
[  451.132370][ T6001]  f2fs_write_data_pages+0x2a27/0x36f0
[  451.132380][ T6001]  ? __lock_acquire+0x683/0x2cf0
[  451.132401][ T6001]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  451.132410][ T6001]  ? __lock_acquire+0x13e8/0x2cf0
[  451.132435][ T6001]  ? __pfx_hlock_conflict+0x10/0x10
[  451.132441][ T6001]  ? __bfs+0x153/0x290
[  451.132476][ T6001]  ? __pfx_hlock_conflict+0x10/0x10
[  451.132489][ T6001]  ? lockdep_unlock+0x5d/0xd0
[  451.132496][ T6001]  ? __lock_acquire+0x13e8/0x2cf0
[  451.132515][ T6001]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  451.132525][ T6001]  do_writepages+0x338/0x560
[  451.132539][ T6001]  ? do_raw_spin_unlock+0x4d/0x210
[  451.132548][ T6001]  filemap_fdatawrite+0x1e9/0x2f0
[  451.132560][ T6001]  ? __pfx_filemap_fdatawrite+0x10/0x10
[  451.132585][ T6001]  ? do_raw_spin_unlock+0x4d/0x210
[  451.132594][ T6001]  f2fs_sync_dirty_inodes+0x30e/0x830
[  451.132610][ T6001]  f2fs_write_checkpoint+0xa3d/0x2710
[  451.132632][ T6001]  ? __pfx_f2fs_write_checkpoint+0x10/0x10
[  451.132683][ T6001]  kill_f2fs_super+0x2dd/0x700
[  451.132698][ T6001]  ? __pfx_kill_f2fs_super+0x10/0x10
[  451.132718][ T6001]  ? call_rcu+0x64b/0x8b0
[  451.132724][ T6001]  ? lockdep_hardirqs_on+0x7a/0x110
[  451.132739][ T6001]  deactivate_locked_super+0xbc/0x110
[  451.132750][ T6001]  cleanup_mnt+0x3d3/0x460
[  451.132760][ T6001]  task_work_run+0x1d9/0x270
[  451.132772][ T6001]  ? __pfx_task_work_run+0x10/0x10
[  451.132786][ T6001]  exit_to_user_mode_loop+0x1fa/0x730
[  451.132795][ T6001]  ? rcu_is_watching+0x15/0xb0
[  451.132806][ T6001]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  451.132814][ T6001]  do_syscall_64+0x353/0x580
[  451.132822][ T6001]  ? trace_irq_disable+0x3b/0x140
[  451.132835][ T6001]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  451.132842][ T6001] RIP: 0033:0x7f319199f257
[  451.132851][ T6001] 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
[  451.132857][ T6001] RSP: 002b:00007fff67960bb8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
[  451.132866][ T6001] RAX: 0000000000000000 RBX: 00007f3191a3445c RCX: 00007f319199f257
[  451.132871][ T6001] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007fff67960c70
[  451.132875][ T6001] RBP: 00007fff67960c70 R08: 00007fff67961c70 R09: 00000000ffffffff
[  451.132880][ T6001] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fff67961d00
[  451.132885][ T6001] R13: 00007f3191a3445c R14: 000000000006e111 R15: 00007fff67961d40
[  451.132897][ T6001]  </TASK>
[  451.133848][ T6001] F2FS-fs (loop0): Stopped filesystem due to reason: 3
[  451.140243][T10222] F2FS-fs (loop2): Small segment_count (9 < 1 * 24)
[  451.276281][T10222] F2FS-fs (loop2): Can't find valid F2FS filesystem in 1th superblock
[  451.328353][T10222] F2FS-fs (loop2): f2fs_recover_fsync_data: recovery fsync data, check_only: 0
[  451.334390][T10222] F2FS-fs (loop2): Try to recover 1th superblock, ret: 0
[  451.337515][T10222] F2FS-fs (loop2): Mounted with checkpoint version = 48b305e5
[  451.343840][   T33] audit: type=1800 audit(1785887742.557:1993): pid=10222 uid=0 auid=4294967295 ses=4294967295 subj=unconfined op=collect_data cause=failed(directio) comm="syz.2.1013" name="file1" dev="loop2" ino=10 res=0 errno=0
[  451.355882][   T33] audit: type=1800 audit(1785887742.567:1994): pid=10222 uid=0 auid=4294967295 ses=4294967295 subj=unconfined op=collect_data cause=failed(directio) comm="syz.2.1013" name="file1" dev="loop2" ino=10 res=0 errno=0
[  451.381417][T10222] syz.2.1013: attempt to access beyond end of device
[  451.381417][T10222] loop2: rw=2049, sector=53248, nr_sectors = 976 limit=40427
[  451.410649][ T6006] CPU: 1 UID: 0 PID: 6006 Comm: syz-executor Not tainted syzkaller #0 PREEMPT(full) 
[  451.410671][ T6006] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
[  451.410679][ T6006] Call Trace:
[  451.410685][ T6006]  <TASK>
[  451.410691][ T6006]  dump_stack_lvl+0xe8/0x150
[  451.410715][ T6006]  f2fs_stop_checkpoint+0x3f6/0x5d0
[  451.410734][ T6006]  f2fs_write_end_io+0x124b/0x1710
[  451.410763][ T6006]  __submit_merged_bio+0x258/0x6a0
[  451.410776][ T6006]  ? rcu_is_watching+0x15/0xb0
[  451.410797][ T6006]  __submit_merged_write_cond+0x3c9/0x4e0
[  451.410817][ T6006]  ? __pfx___submit_merged_write_cond+0x10/0x10
[  451.410846][ T6006]  f2fs_write_data_pages+0x2a27/0x36f0
[  451.410861][ T6006]  ? __lock_acquire+0x683/0x2cf0
[  451.410897][ T6006]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  451.410940][ T6006]  ? __pfx_hlock_conflict+0x10/0x10
[  451.410950][ T6006]  ? __bfs+0x153/0x290
[  451.411017][ T6006]  ? __pfx_hlock_conflict+0x10/0x10
[  451.411038][ T6006]  ? lockdep_unlock+0x5d/0xd0
[  451.411051][ T6006]  ? __lock_acquire+0x13e8/0x2cf0
[  451.411081][ T6006]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  451.411098][ T6006]  do_writepages+0x338/0x560
[  451.411121][ T6006]  ? do_raw_spin_unlock+0x4d/0x210
[  451.411137][ T6006]  filemap_fdatawrite+0x1e9/0x2f0
[  451.411155][ T6006]  ? __pfx_filemap_fdatawrite+0x10/0x10
[  451.411195][ T6006]  ? do_raw_spin_unlock+0x4d/0x210
[  451.411210][ T6006]  f2fs_sync_dirty_inodes+0x30e/0x830
[  451.411235][ T6006]  f2fs_write_checkpoint+0xa3d/0x2710
[  451.411269][ T6006]  ? __pfx_f2fs_write_checkpoint+0x10/0x10
[  451.411317][ T6006]  kill_f2fs_super+0x2dd/0x700
[  451.411341][ T6006]  ? __pfx_kill_f2fs_super+0x10/0x10
[  451.411363][ T6006]  ? call_rcu+0x64b/0x8b0
[  451.411376][ T6006]  ? lockdep_hardirqs_on+0x7a/0x110
[  451.411399][ T6006]  deactivate_locked_super+0xbc/0x110
[  451.411418][ T6006]  cleanup_mnt+0x3d3/0x460
[  451.411434][ T6006]  task_work_run+0x1d9/0x270
[  451.411454][ T6006]  ? __pfx_task_work_run+0x10/0x10
[  451.411482][ T6006]  exit_to_user_mode_loop+0x1fa/0x730
[  451.411497][ T6006]  ? rcu_is_watching+0x15/0xb0
[  451.411513][ T6006]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  451.411526][ T6006]  do_syscall_64+0x353/0x580
[  451.411539][ T6006]  ? trace_irq_disable+0x3b/0x140
[  451.411558][ T6006]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  451.411569][ T6006] RIP: 0033:0x7fe55f39f257
[  451.411581][ T6006] 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
[  451.411590][ T6006] RSP: 002b:00007ffd634636d8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
[  451.411605][ T6006] RAX: 0000000000000000 RBX: 00007fe55f43445c RCX: 00007fe55f39f257
[  451.411614][ T6006] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffd63463790
[  451.411621][ T6006] RBP: 00007ffd63463790 R08: 00007ffd63464790 R09: 00000000ffffffff
[  451.411629][ T6006] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffd63464820
[  451.411637][ T6006] R13: 00007fe55f43445c R14: 000000000006e2b5 R15: 00007ffd63464860
[  451.411655][ T6006]  </TASK>
[  451.412751][ T6006] F2FS-fs (loop2): Stopped filesystem due to reason: 3
[  451.683490][T10227] loop1: detected capacity change from 0 to 40427
[  451.711932][T10227] F2FS-fs (loop1): Small segment_count (9 < 1 * 24)
[  451.717800][T10227] F2FS-fs (loop1): Can't find valid F2FS filesystem in 1th superblock
[  451.803578][T10227] F2FS-fs (loop1): f2fs_recover_fsync_data: recovery fsync data, check_only: 0
[  451.816125][T10227] F2FS-fs (loop1): Try to recover 1th superblock, ret: 0
[  451.820464][T10227] F2FS-fs (loop1): Mounted with checkpoint version = 48b305e5
[  451.828407][   T33] audit: type=1800 audit(1785887743.037:1995): pid=10227 uid=0 auid=4294967295 ses=4294967295 subj=unconfined op=collect_data cause=failed(directio) comm="syz.1.1014" name="file1" dev="loop1" ino=10 res=0 errno=0
[  451.838638][T10229] F2FS-fs (loop0): Small segment_count (9 < 1 * 24)
[  451.841487][T10229] F2FS-fs (loop0): Can't find valid F2FS filesystem in 1th superblock
[  451.846725][   T33] audit: type=1800 audit(1785887743.047:1996): pid=10227 uid=0 auid=4294967295 ses=4294967295 subj=unconfined op=collect_data cause=failed(directio) comm="syz.1.1014" name="file1" dev="loop1" ino=10 res=0 errno=0
[  451.872592][ T6002] CPU: 1 UID: 0 PID: 6002 Comm: syz-executor Not tainted syzkaller #0 PREEMPT(full) 
[  451.872617][ T6002] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
[  451.872626][ T6002] Call Trace:
[  451.872632][ T6002]  <TASK>
[  451.872638][ T6002]  dump_stack_lvl+0xe8/0x150
[  451.872666][ T6002]  f2fs_stop_checkpoint+0x3f6/0x5d0
[  451.872689][ T6002]  f2fs_write_end_io+0x124b/0x1710
[  451.872723][ T6002]  __submit_merged_bio+0x258/0x6a0
[  451.872739][ T6002]  ? rcu_is_watching+0x15/0xb0
[  451.872761][ T6002]  __submit_merged_write_cond+0x3c9/0x4e0
[  451.872784][ T6002]  ? __pfx___submit_merged_write_cond+0x10/0x10
[  451.872814][ T6002]  f2fs_write_data_pages+0x2a27/0x36f0
[  451.872831][ T6002]  ? __lock_acquire+0x683/0x2cf0
[  451.872873][ T6002]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  451.872920][ T6002]  ? raw_spin_rq_lock_nested+0x2d/0x160
[  451.872938][ T6002]  ? __pfx_hlock_conflict+0x10/0x10
[  451.872976][ T6002]  ? __bfs+0x153/0x290
[  451.872993][ T6002]  ? __pfx_hlock_conflict+0x10/0x10
[  451.873018][ T6002]  ? lockdep_unlock+0x5d/0xd0
[  451.873032][ T6002]  ? __lock_acquire+0x13e8/0x2cf0
[  451.873068][ T6002]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  451.873087][ T6002]  do_writepages+0x338/0x560
[  451.873115][ T6002]  ? do_raw_spin_unlock+0x4d/0x210
[  451.873133][ T6002]  filemap_fdatawrite+0x1e9/0x2f0
[  451.873155][ T6002]  ? __pfx_filemap_fdatawrite+0x10/0x10
[  451.873205][ T6002]  ? do_raw_spin_unlock+0x4d/0x210
[  451.873222][ T6002]  f2fs_sync_dirty_inodes+0x30e/0x830
[  451.873252][ T6002]  f2fs_write_checkpoint+0xa3d/0x2710
[  451.873313][ T6002]  ? __pfx_f2fs_write_checkpoint+0x10/0x10
[  451.873372][ T6002]  kill_f2fs_super+0x2dd/0x700
[  451.873396][ T6002]  ? __pfx_kill_f2fs_super+0x10/0x10
[  451.873423][ T6002]  ? call_rcu+0x64b/0x8b0
[  451.873434][ T6002]  ? lockdep_hardirqs_on+0x7a/0x110
[  451.873460][ T6002]  deactivate_locked_super+0xbc/0x110
[  451.873480][ T6002]  cleanup_mnt+0x3d3/0x460
[  451.873503][ T6002]  task_work_run+0x1d9/0x270
[  451.873525][ T6002]  ? __pfx_task_work_run+0x10/0x10
[  451.873550][ T6002]  exit_to_user_mode_loop+0x1fa/0x730
[  451.873567][ T6002]  ? rcu_is_watching+0x15/0xb0
[  451.873585][ T6002]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  451.873600][ T6002]  do_syscall_64+0x353/0x580
[  451.873615][ T6002]  ? trace_irq_disable+0x3b/0x140
[  451.873635][ T6002]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  451.873648][ T6002] RIP: 0033:0x7fbec519f257
[  451.873661][ T6002] 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
[  451.873672][ T6002] RSP: 002b:00007fff2e02d568 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
[  451.873688][ T6002] RAX: 0000000000000000 RBX: 00007fbec523445c RCX: 00007fbec519f257
[  451.873698][ T6002] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007fff2e02d620
[  451.873705][ T6002] RBP: 00007fff2e02d620 R08: 00007fff2e02e620 R09: 00000000ffffffff
[  451.873713][ T6002] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fff2e02e6b0
[  451.873721][ T6002] R13: 00007fbec523445c R14: 000000000006e489 R15: 00007fff2e02e6f0
[  451.873743][ T6002]  </TASK>
2026/08/04 23:55:43 executed programs: 1006
[  452.004218][ T6002] F2FS-fs (loop1): Stopped filesystem due to reason: 3
[  452.031062][T10229] F2FS-fs (loop0): f2fs_recover_fsync_data: recovery fsync data, check_only: 0
[  452.037925][T10229] F2FS-fs (loop0): Try to recover 1th superblock, ret: 0
[  452.040437][T10229] F2FS-fs (loop0): Mounted with checkpoint version = 48b305e5
[  452.054876][   T33] audit: type=1800 audit(1785887743.247:1997): pid=10229 uid=0 auid=4294967295 ses=4294967295 subj=unconfined op=collect_data cause=failed(directio) comm="syz.0.1015" name="file1" dev="loop0" ino=10 res=0 errno=0
[  452.063346][   T33] audit: type=1800 audit(1785887743.247:1998): pid=10229 uid=0 auid=4294967295 ses=4294967295 subj=unconfined op=collect_data cause=failed(directio) comm="syz.0.1015" name="file1" dev="loop0" ino=10 res=0 errno=0
[  452.101477][ T6001] CPU: 1 UID: 0 PID: 6001 Comm: syz-executor Not tainted syzkaller #0 PREEMPT(full) 
[  452.101507][ T6001] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
[  452.101516][ T6001] Call Trace:
[  452.101522][ T6001]  <TASK>
[  452.101529][ T6001]  dump_stack_lvl+0xe8/0x150
[  452.101555][ T6001]  f2fs_stop_checkpoint+0x3f6/0x5d0
[  452.101576][ T6001]  f2fs_write_end_io+0x124b/0x1710
[  452.101608][ T6001]  __submit_merged_bio+0x258/0x6a0
[  452.101622][ T6001]  ? rcu_is_watching+0x15/0xb0
[  452.101645][ T6001]  __submit_merged_write_cond+0x3c9/0x4e0
[  452.101666][ T6001]  ? __pfx___submit_merged_write_cond+0x10/0x10
[  452.101696][ T6001]  f2fs_write_data_pages+0x2a27/0x36f0
[  452.101736][ T6001]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  452.101781][ T6001]  ? __pfx_hlock_conflict+0x10/0x10
[  452.101792][ T6001]  ? __bfs+0x153/0x290
[  452.101808][ T6001]  ? __pfx_hlock_conflict+0x10/0x10
[  452.101830][ T6001]  ? lockdep_unlock+0x5d/0xd0
[  452.101843][ T6001]  ? __lock_acquire+0x13e8/0x2cf0
[  452.101875][ T6001]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  452.101893][ T6001]  do_writepages+0x338/0x560
[  452.101918][ T6001]  ? do_raw_spin_unlock+0x4d/0x210
[  452.101934][ T6001]  filemap_fdatawrite+0x1e9/0x2f0
[  452.101981][ T6001]  ? __pfx_filemap_fdatawrite+0x10/0x10
[  452.102026][ T6001]  ? do_raw_spin_unlock+0x4d/0x210
[  452.102043][ T6001]  f2fs_sync_dirty_inodes+0x30e/0x830
[  452.102070][ T6001]  f2fs_write_checkpoint+0xa3d/0x2710
[  452.102109][ T6001]  ? __pfx_f2fs_write_checkpoint+0x10/0x10
[  452.102160][ T6001]  kill_f2fs_super+0x2dd/0x700
[  452.102183][ T6001]  ? __pfx_kill_f2fs_super+0x10/0x10
[  452.102209][ T6001]  ? call_rcu+0x64b/0x8b0
[  452.102220][ T6001]  ? lockdep_hardirqs_on+0x7a/0x110
[  452.102244][ T6001]  deactivate_locked_super+0xbc/0x110
[  452.102264][ T6001]  cleanup_mnt+0x3d3/0x460
[  452.102280][ T6001]  task_work_run+0x1d9/0x270
[  452.102301][ T6001]  ? __pfx_task_work_run+0x10/0x10
[  452.102323][ T6001]  exit_to_user_mode_loop+0x1fa/0x730
[  452.102338][ T6001]  ? rcu_is_watching+0x15/0xb0
[  452.102355][ T6001]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  452.102368][ T6001]  do_syscall_64+0x353/0x580
[  452.102383][ T6001]  ? trace_irq_disable+0x3b/0x140
[  452.102404][ T6001]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  452.102416][ T6001] RIP: 0033:0x7f319199f257
[  452.102430][ T6001] 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
[  452.102442][ T6001] RSP: 002b:00007fff67960bb8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
[  452.102456][ T6001] RAX: 0000000000000000 RBX: 00007f3191a3445c RCX: 00007f319199f257
[  452.102465][ T6001] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007fff67960c70
[  452.102472][ T6001] RBP: 00007fff67960c70 R08: 00007fff67961c70 R09: 00000000ffffffff
[  452.102487][ T6001] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fff67961d00
[  452.102495][ T6001] R13: 00007f3191a3445c R14: 000000000006e38e R15: 00007fff67961d40
[  452.102516][ T6001]  </TASK>
[  452.229621][ T6001] F2FS-fs (loop0): Stopped filesystem due to reason: 3
[  452.447132][T10235] F2FS-fs (loop2): Small segment_count (9 < 1 * 24)
[  452.458998][T10235] F2FS-fs (loop2): Can't find valid F2FS filesystem in 1th superblock
[  452.515892][T10235] F2FS-fs (loop2): f2fs_recover_fsync_data: recovery fsync data, check_only: 0
[  452.521490][T10235] F2FS-fs (loop2): Try to recover 1th superblock, ret: 0
[  452.526205][T10235] F2FS-fs (loop2): Mounted with checkpoint version = 48b305e5
[  452.549753][ T6006] CPU: 1 UID: 0 PID: 6006 Comm: syz-executor Not tainted syzkaller #0 PREEMPT(full) 
[  452.549776][ T6006] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
[  452.549784][ T6006] Call Trace:
[  452.549790][ T6006]  <TASK>
[  452.549798][ T6006]  dump_stack_lvl+0xe8/0x150
[  452.549820][ T6006]  f2fs_stop_checkpoint+0x3f6/0x5d0
[  452.549842][ T6006]  f2fs_write_end_io+0x124b/0x1710
[  452.549871][ T6006]  __submit_merged_bio+0x258/0x6a0
[  452.549885][ T6006]  ? rcu_is_watching+0x15/0xb0
[  452.549907][ T6006]  __submit_merged_write_cond+0x3c9/0x4e0
[  452.549928][ T6006]  ? __pfx___submit_merged_write_cond+0x10/0x10
[  452.549986][ T6006]  f2fs_write_data_pages+0x2a27/0x36f0
[  452.550003][ T6006]  ? __lock_acquire+0x683/0x2cf0
[  452.550041][ T6006]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  452.550087][ T6006]  ? __pfx_hlock_conflict+0x10/0x10
[  452.550098][ T6006]  ? __bfs+0x153/0x290
[  452.550112][ T6006]  ? __pfx_hlock_conflict+0x10/0x10
[  452.550135][ T6006]  ? lockdep_unlock+0x5d/0xd0
[  452.550148][ T6006]  ? __lock_acquire+0x13e8/0x2cf0
[  452.550180][ T6006]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  452.550197][ T6006]  do_writepages+0x338/0x560
[  452.550222][ T6006]  ? do_raw_spin_unlock+0x4d/0x210
[  452.550238][ T6006]  filemap_fdatawrite+0x1e9/0x2f0
[  452.550259][ T6006]  ? __pfx_filemap_fdatawrite+0x10/0x10
[  452.550303][ T6006]  ? do_raw_spin_unlock+0x4d/0x210
[  452.550319][ T6006]  f2fs_sync_dirty_inodes+0x30e/0x830
[  452.550347][ T6006]  f2fs_write_checkpoint+0xa3d/0x2710
[  452.550385][ T6006]  ? __pfx_f2fs_write_checkpoint+0x10/0x10
[  452.550455][ T6006]  kill_f2fs_super+0x2dd/0x700
[  452.550484][ T6006]  ? __pfx_kill_f2fs_super+0x10/0x10
[  452.550509][ T6006]  ? call_rcu+0x64b/0x8b0
[  452.550520][ T6006]  ? lockdep_hardirqs_on+0x7a/0x110
[  452.550543][ T6006]  deactivate_locked_super+0xbc/0x110
[  452.550563][ T6006]  cleanup_mnt+0x3d3/0x460
[  452.550580][ T6006]  task_work_run+0x1d9/0x270
[  452.550601][ T6006]  ? __pfx_task_work_run+0x10/0x10
[  452.550625][ T6006]  exit_to_user_mode_loop+0x1fa/0x730
[  452.550641][ T6006]  ? rcu_is_watching+0x15/0xb0
[  452.550659][ T6006]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  452.550673][ T6006]  do_syscall_64+0x353/0x580
[  452.550687][ T6006]  ? trace_irq_disable+0x3b/0x140
[  452.550707][ T6006]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  452.550720][ T6006] RIP: 0033:0x7fe55f39f257
[  452.550733][ T6006] 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
[  452.550744][ T6006] RSP: 002b:00007ffd634636d8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
[  452.550759][ T6006] RAX: 0000000000000000 RBX: 00007fe55f43445c RCX: 00007fe55f39f257
[  452.550768][ T6006] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffd63463790
[  452.550775][ T6006] RBP: 00007ffd63463790 R08: 00007ffd63464790 R09: 00000000ffffffff
[  452.550783][ T6006] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffd63464820
[  452.550790][ T6006] R13: 00007fe55f43445c R14: 000000000006e72c R15: 00007ffd63464860
[  452.550810][ T6006]  </TASK>
[  452.551896][ T6006] F2FS-fs (loop2): Stopped filesystem due to reason: 3
[  452.620836][T10237] F2FS-fs (loop1): Small segment_count (9 < 1 * 24)
[  452.688975][T10237] F2FS-fs (loop1): Can't find valid F2FS filesystem in 1th superblock
[  452.737050][T10237] F2FS-fs (loop1): f2fs_recover_fsync_data: recovery fsync data, check_only: 0
[  452.742863][T10237] F2FS-fs (loop1): Try to recover 1th superblock, ret: 0
[  452.745746][T10237] F2FS-fs (loop1): Mounted with checkpoint version = 48b305e5
[  452.778980][ T6002] CPU: 1 UID: 0 PID: 6002 Comm: syz-executor Not tainted syzkaller #0 PREEMPT(full) 

[host] Command execution timed out after 6m0s