0x10/0x10
[  434.530462][ T6110]  exit_to_user_mode_loop+0x1fa/0x730
[  434.530477][ T6110]  ? rcu_is_watching+0x15/0xb0
[  434.530495][ T6110]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  434.530508][ T6110]  do_syscall_64+0x353/0x580
[  434.530521][ T6110]  ? trace_irq_disable+0x3b/0x140
[  434.530541][ T6110]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  434.530553][ T6110] RIP: 0033:0x7f730e59f257
[  434.530566][ T6110] Code: a2 c7 05 9c 44 25 00 00 00 00 00 eb 96 e8 e1 12 00 00 90 31 f6 e9 09 00 00 00 66 0f 1f 84 00 00 00 00 00 b8 a6 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 01 c3 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8
[  434.530576][ T6110] RSP: 002b:00007ffe088e1548 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
[  434.530591][ T6110] RAX: 0000000000000000 RBX: 00007f730e63445c RCX: 00007f730e59f257
[  434.530599][ T6110] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffe088e1600
[  434.530635][ T6110] RBP: 00007ffe088e1600 R08: 00007ffe088e2600 R09: 00000000ffffffff
[  434.530643][ T6110] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffe088e2690
[  434.530651][ T6110] R13: 00007f730e63445c R14: 000000000006a0d7 R15: 00007ffe088e26d0
[  434.530673][ T6110]  </TASK>
[  434.536691][ T6110] F2FS-fs (loop0): Stopped filesystem due to reason: 3
[  434.536955][T10184] F2FS-fs (loop2): f2fs_recover_fsync_data: recovery fsync data, check_only: 0
[  434.665708][T10184] F2FS-fs (loop2): Try to recover 1th superblock, ret: 0
[  434.667894][T10184] F2FS-fs (loop2): Mounted with checkpoint version = 48b305e5
[  434.705583][ T6116] CPU: 1 UID: 0 PID: 6116 Comm: syz-executor Not tainted syzkaller #0 PREEMPT(full) 
[  434.705639][ T6116] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
[  434.705647][ T6116] Call Trace:
[  434.705654][ T6116]  <TASK>
[  434.705659][ T6116]  dump_stack_lvl+0xe8/0x150
[  434.705682][ T6116]  f2fs_stop_checkpoint+0x3f6/0x5d0
[  434.705702][ T6116]  f2fs_write_end_io+0x124b/0x1710
[  434.705733][ T6116]  __submit_merged_bio+0x258/0x6a0
[  434.705747][ T6116]  ? rcu_is_watching+0x15/0xb0
[  434.705769][ T6116]  __submit_merged_write_cond+0x3c9/0x4e0
[  434.705791][ T6116]  ? __pfx___submit_merged_write_cond+0x10/0x10
[  434.705822][ T6116]  f2fs_write_data_pages+0x2a27/0x36f0
[  434.705865][ T6116]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  434.705932][ T6116]  ? __pfx_hlock_conflict+0x10/0x10
[  434.705944][ T6116]  ? __bfs+0x153/0x290
[  434.705958][ T6116]  ? __pfx_hlock_conflict+0x10/0x10
[  434.705982][ T6116]  ? lockdep_unlock+0x5d/0xd0
[  434.705994][ T6116]  ? __lock_acquire+0x13e8/0x2cf0
[  434.706029][ T6116]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  434.706046][ T6116]  do_writepages+0x338/0x560
[  434.706070][ T6116]  ? do_raw_spin_unlock+0x4d/0x210
[  434.706086][ T6116]  filemap_fdatawrite+0x1e9/0x2f0
[  434.706111][ T6116]  ? __pfx_filemap_fdatawrite+0x10/0x10
[  434.706159][ T6116]  ? do_raw_spin_unlock+0x4d/0x210
[  434.706175][ T6116]  f2fs_sync_dirty_inodes+0x30e/0x830
[  434.706203][ T6116]  f2fs_write_checkpoint+0xa3d/0x2710
[  434.706244][ T6116]  ? __pfx_f2fs_write_checkpoint+0x10/0x10
[  434.706299][ T6116]  kill_f2fs_super+0x2dd/0x700
[  434.706322][ T6116]  ? __pfx_kill_f2fs_super+0x10/0x10
[  434.706348][ T6116]  ? call_rcu+0x64b/0x8b0
[  434.706359][ T6116]  ? lockdep_hardirqs_on+0x7a/0x110
[  434.706382][ T6116]  deactivate_locked_super+0xbc/0x110
[  434.706401][ T6116]  cleanup_mnt+0x3d3/0x460
[  434.706417][ T6116]  task_work_run+0x1d9/0x270
[  434.706437][ T6116]  ? __pfx_task_work_run+0x10/0x10
[  434.706461][ T6116]  exit_to_user_mode_loop+0x1fa/0x730
[  434.706475][ T6116]  ? rcu_is_watching+0x15/0xb0
[  434.706493][ T6116]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  434.706505][ T6116]  do_syscall_64+0x353/0x580
[  434.706518][ T6116]  ? trace_irq_disable+0x3b/0x140
[  434.706537][ T6116]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  434.706548][ T6116] RIP: 0033:0x7f270e19f257
[  434.706560][ T6116] Code: a2 c7 05 9c 44 25 00 00 00 00 00 eb 96 e8 e1 12 00 00 90 31 f6 e9 09 00 00 00 66 0f 1f 84 00 00 00 00 00 b8 a6 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 01 c3 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8
[  434.706570][ T6116] RSP: 002b:00007ffe3f534648 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
[  434.706583][ T6116] RAX: 0000000000000000 RBX: 00007f270e23445c RCX: 00007f270e19f257
[  434.706591][ T6116] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffe3f534700
[  434.706623][ T6116] RBP: 00007ffe3f534700 R08: 00007ffe3f535700 R09: 00000000ffffffff
[  434.706633][ T6116] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffe3f535790
[  434.706640][ T6116] R13: 00007f270e23445c R14: 000000000006a18e R15: 00007ffe3f5357d0
[  434.706662][ T6116]  </TASK>
[  434.760401][ T6116] F2FS-fs (loop2): Stopped filesystem due to reason: 3
[  435.010582][T10190] F2FS-fs (loop1): Small segment_count (9 < 1 * 24)
[  435.013976][T10190] F2FS-fs (loop1): Can't find valid F2FS filesystem in 1th superblock
[  435.134709][T10190] F2FS-fs (loop1): f2fs_recover_fsync_data: recovery fsync data, check_only: 0
[  435.150900][T10190] F2FS-fs (loop1): Try to recover 1th superblock, ret: 0
[  435.154111][T10190] F2FS-fs (loop1): Mounted with checkpoint version = 48b305e5
[  435.212471][ T6112] CPU: 0 UID: 0 PID: 6112 Comm: syz-executor Not tainted syzkaller #0 PREEMPT(full) 
[  435.212496][ T6112] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
[  435.212504][ T6112] Call Trace:
[  435.212511][ T6112]  <TASK>
[  435.212518][ T6112]  dump_stack_lvl+0xe8/0x150
[  435.212544][ T6112]  f2fs_stop_checkpoint+0x3f6/0x5d0
[  435.212565][ T6112]  f2fs_write_end_io+0x124b/0x1710
[  435.212627][ T6112]  __submit_merged_bio+0x258/0x6a0
[  435.212643][ T6112]  ? rcu_is_watching+0x15/0xb0
[  435.212665][ T6112]  __submit_merged_write_cond+0x3c9/0x4e0
[  435.212686][ T6112]  ? __pfx___submit_merged_write_cond+0x10/0x10
[  435.212733][ T6112]  f2fs_write_data_pages+0x2a27/0x36f0
[  435.212750][ T6112]  ? __lock_acquire+0x683/0x2cf0
[  435.212787][ T6112]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  435.212831][ T6112]  ? __pfx_hlock_conflict+0x10/0x10
[  435.212842][ T6112]  ? __bfs+0x153/0x290
[  435.212856][ T6112]  ? __pfx_hlock_conflict+0x10/0x10
[  435.212879][ T6112]  ? lockdep_unlock+0x5d/0xd0
[  435.212893][ T6112]  ? __lock_acquire+0x13e8/0x2cf0
[  435.212923][ T6112]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  435.212941][ T6112]  do_writepages+0x338/0x560
[  435.212966][ T6112]  ? do_raw_spin_unlock+0x4d/0x210
[  435.212981][ T6112]  filemap_fdatawrite+0x1e9/0x2f0
[  435.213001][ T6112]  ? __pfx_filemap_fdatawrite+0x10/0x10
[  435.213043][ T6112]  ? do_raw_spin_unlock+0x4d/0x210
[  435.213059][ T6112]  f2fs_sync_dirty_inodes+0x30e/0x830
[  435.213086][ T6112]  f2fs_write_checkpoint+0xa3d/0x2710
[  435.213121][ T6112]  ? __pfx_f2fs_write_checkpoint+0x10/0x10
[  435.213170][ T6112]  kill_f2fs_super+0x2dd/0x700
[  435.213194][ T6112]  ? __pfx_kill_f2fs_super+0x10/0x10
[  435.213442][ T6112]  ? call_rcu+0x64b/0x8b0
[  435.213456][ T6112]  ? lockdep_hardirqs_on+0x7a/0x110
[  435.213480][ T6112]  deactivate_locked_super+0xbc/0x110
[  435.213550][ T6112]  cleanup_mnt+0x3d3/0x460
[  435.213569][ T6112]  task_work_run+0x1d9/0x270
[  435.213650][ T6112]  ? __pfx_task_work_run+0x10/0x10
[  435.213675][ T6112]  exit_to_user_mode_loop+0x1fa/0x730
[  435.213690][ T6112]  ? rcu_is_watching+0x15/0xb0
[  435.213706][ T6112]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  435.213718][ T6112]  do_syscall_64+0x353/0x580
[  435.213738][ T6112]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  435.213749][ T6112] RIP: 0033:0x7fe6d639f257
[  435.213764][ T6112] Code: a2 c7 05 9c 44 25 00 00 00 00 00 eb 96 e8 e1 12 00 00 90 31 f6 e9 09 00 00 00 66 0f 1f 84 00 00 00 00 00 b8 a6 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 01 c3 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8
[  435.213774][ T6112] RSP: 002b:00007ffc1f486698 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
[  435.213789][ T6112] RAX: 0000000000000000 RBX: 00007fe6d643445c RCX: 00007fe6d639f257
[  435.213798][ T6112] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffc1f486750
[  435.213807][ T6112] RBP: 00007ffc1f486750 R08: 00007ffc1f487750 R09: 00000000ffffffff
[  435.213815][ T6112] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc1f4877e0
[  435.213822][ T6112] R13: 00007fe6d643445c R14: 000000000006a36c R15: 00007ffc1f487820
[  435.213842][ T6112]  </TASK>
[  435.214301][ T6112] F2FS-fs (loop1): Stopped filesystem due to reason: 3
[  435.457812][T10194] set_capacity_and_notify: 4 callbacks suppressed
[  435.457827][T10194] loop0: detected capacity change from 0 to 40427
[  435.497852][T10194] F2FS-fs (loop0): Small segment_count (9 < 1 * 24)
[  435.504458][T10194] F2FS-fs (loop0): Can't find valid F2FS filesystem in 1th superblock
[  435.560693][T10194] F2FS-fs (loop0): f2fs_recover_fsync_data: recovery fsync data, check_only: 0
[  435.570758][T10194] F2FS-fs (loop0): Try to recover 1th superblock, ret: 0
[  435.575796][T10196] loop2: detected capacity change from 0 to 40427
[  435.579948][T10194] F2FS-fs (loop0): Mounted with checkpoint version = 48b305e5
[  435.594834][T10196] F2FS-fs (loop2): Small segment_count (9 < 1 * 24)
[  435.597127][T10196] F2FS-fs (loop2): Can't find valid F2FS filesystem in 1th superblock
[  435.632971][ T6110] CPU: 0 UID: 0 PID: 6110 Comm: syz-executor Not tainted syzkaller #0 PREEMPT(full) 
[  435.632996][ T6110] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
[  435.633004][ T6110] Call Trace:
[  435.633010][ T6110]  <TASK>
[  435.633017][ T6110]  dump_stack_lvl+0xe8/0x150
[  435.633041][ T6110]  f2fs_stop_checkpoint+0x3f6/0x5d0
[  435.633055][ T6110]  f2fs_write_end_io+0x124b/0x1710
[  435.633073][ T6110]  __submit_merged_bio+0x258/0x6a0
[  435.633082][ T6110]  ? rcu_is_watching+0x15/0xb0
[  435.633096][ T6110]  __submit_merged_write_cond+0x3c9/0x4e0
[  435.633108][ T6110]  ? __pfx___submit_merged_write_cond+0x10/0x10
[  435.633125][ T6110]  f2fs_write_data_pages+0x2a27/0x36f0
[  435.633135][ T6110]  ? __lock_acquire+0x683/0x2cf0
[  435.633156][ T6110]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  435.633181][ T6110]  ? __pfx_hlock_conflict+0x10/0x10
[  435.633187][ T6110]  ? __bfs+0x153/0x290
[  435.633195][ T6110]  ? __pfx_hlock_conflict+0x10/0x10
[  435.633207][ T6110]  ? lockdep_unlock+0x5d/0xd0
[  435.633214][ T6110]  ? __lock_acquire+0x13e8/0x2cf0
[  435.633232][ T6110]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  435.633241][ T6110]  do_writepages+0x338/0x560
[  435.633256][ T6110]  ? do_raw_spin_unlock+0x4d/0x210
[  435.633265][ T6110]  filemap_fdatawrite+0x1e9/0x2f0
[  435.633277][ T6110]  ? __pfx_filemap_fdatawrite+0x10/0x10
[  435.633301][ T6110]  ? do_raw_spin_unlock+0x4d/0x210
[  435.633310][ T6110]  f2fs_sync_dirty_inodes+0x30e/0x830
[  435.633325][ T6110]  f2fs_write_checkpoint+0xa3d/0x2710
[  435.633346][ T6110]  ? __pfx_f2fs_write_checkpoint+0x10/0x10
[  435.633373][ T6110]  kill_f2fs_super+0x2dd/0x700
[  435.633386][ T6110]  ? __pfx_kill_f2fs_super+0x10/0x10
[  435.633400][ T6110]  ? call_rcu+0x64b/0x8b0
[  435.633406][ T6110]  ? lockdep_hardirqs_on+0x7a/0x110
[  435.633420][ T6110]  deactivate_locked_super+0xbc/0x110
[  435.633433][ T6110]  cleanup_mnt+0x3d3/0x460
[  435.633443][ T6110]  task_work_run+0x1d9/0x270
[  435.633456][ T6110]  ? __pfx_task_work_run+0x10/0x10
[  435.633469][ T6110]  exit_to_user_mode_loop+0x1fa/0x730
[  435.633479][ T6110]  ? rcu_is_watching+0x15/0xb0
[  435.633489][ T6110]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  435.633503][ T6110]  do_syscall_64+0x353/0x580
[  435.633511][ T6110]  ? trace_irq_disable+0x3b/0x140
[  435.633523][ T6110]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  435.633531][ T6110] RIP: 0033:0x7f730e59f257
[  435.633540][ T6110] Code: a2 c7 05 9c 44 25 00 00 00 00 00 eb 96 e8 e1 12 00 00 90 31 f6 e9 09 00 00 00 66 0f 1f 84 00 00 00 00 00 b8 a6 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 01 c3 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8
[  435.633547][ T6110] RSP: 002b:00007ffe088e1548 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
[  435.633556][ T6110] RAX: 0000000000000000 RBX: 00007f730e63445c RCX: 00007f730e59f257
[  435.633561][ T6110] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffe088e1600
[  435.633566][ T6110] RBP: 00007ffe088e1600 R08: 00007ffe088e2600 R09: 00000000ffffffff
[  435.633570][ T6110] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffe088e2690
[  435.633575][ T6110] R13: 00007f730e63445c R14: 000000000006a519 R15: 00007ffe088e26d0
[  435.633618][ T6110]  </TASK>
[  435.633624][ T6110] F2FS-fs (loop0): Stopped filesystem due to reason: 3
[  435.650314][T10196] F2FS-fs (loop2): f2fs_recover_fsync_data: recovery fsync data, check_only: 0
[  435.752094][T10196] F2FS-fs (loop2): Try to recover 1th superblock, ret: 0
[  435.754851][T10196] F2FS-fs (loop2): Mounted with checkpoint version = 48b305e5
[  435.817504][ T6116] CPU: 0 UID: 0 PID: 6116 Comm: syz-executor Not tainted syzkaller #0 PREEMPT(full) 
[  435.817529][ T6116] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
[  435.817538][ T6116] Call Trace:
[  435.817544][ T6116]  <TASK>
[  435.817550][ T6116]  dump_stack_lvl+0xe8/0x150
[  435.817577][ T6116]  f2fs_stop_checkpoint+0x3f6/0x5d0
[  435.817623][ T6116]  f2fs_write_end_io+0x124b/0x1710
[  435.817654][ T6116]  __submit_merged_bio+0x258/0x6a0
[  435.817670][ T6116]  ? rcu_is_watching+0x15/0xb0
[  435.817694][ T6116]  __submit_merged_write_cond+0x3c9/0x4e0
[  435.817715][ T6116]  ? __pfx___submit_merged_write_cond+0x10/0x10
[  435.817744][ T6116]  f2fs_write_data_pages+0x2a27/0x36f0
[  435.817761][ T6116]  ? __lock_acquire+0x683/0x2cf0
[  435.817797][ T6116]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  435.817840][ T6116]  ? __pfx_hlock_conflict+0x10/0x10
[  435.817850][ T6116]  ? __bfs+0x153/0x290
[  435.817864][ T6116]  ? __pfx_hlock_conflict+0x10/0x10
[  435.817886][ T6116]  ? lockdep_unlock+0x5d/0xd0
[  435.817900][ T6116]  ? __lock_acquire+0x13e8/0x2cf0
[  435.817930][ T6116]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  435.817946][ T6116]  do_writepages+0x338/0x560
[  435.817970][ T6116]  ? do_raw_spin_unlock+0x4d/0x210
[  435.817986][ T6116]  filemap_fdatawrite+0x1e9/0x2f0
[  435.818010][ T6116]  ? __pfx_filemap_fdatawrite+0x10/0x10
[  435.818052][ T6116]  ? do_raw_spin_unlock+0x4d/0x210
[  435.818067][ T6116]  f2fs_sync_dirty_inodes+0x30e/0x830
[  435.818092][ T6116]  f2fs_write_checkpoint+0xa3d/0x2710
[  435.818128][ T6116]  ? __pfx_f2fs_write_checkpoint+0x10/0x10
[  435.818199][ T6116]  kill_f2fs_super+0x2dd/0x700
[  435.818222][ T6116]  ? __pfx_kill_f2fs_super+0x10/0x10
[  435.818246][ T6116]  ? call_rcu+0x64b/0x8b0
[  435.818256][ T6116]  ? lockdep_hardirqs_on+0x7a/0x110
[  435.818279][ T6116]  deactivate_locked_super+0xbc/0x110
[  435.818299][ T6116]  cleanup_mnt+0x3d3/0x460
[  435.818315][ T6116]  task_work_run+0x1d9/0x270
[  435.818337][ T6116]  ? __pfx_task_work_run+0x10/0x10
[  435.818360][ T6116]  exit_to_user_mode_loop+0x1fa/0x730
[  435.818376][ T6116]  ? rcu_is_watching+0x15/0xb0
[  435.818394][ T6116]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  435.818408][ T6116]  do_syscall_64+0x353/0x580
[  435.818421][ T6116]  ? trace_irq_disable+0x3b/0x140
[  435.818442][ T6116]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  435.818475][ T6116] RIP: 0033:0x7f270e19f257
[  435.818488][ T6116] Code: a2 c7 05 9c 44 25 00 00 00 00 00 eb 96 e8 e1 12 00 00 90 31 f6 e9 09 00 00 00 66 0f 1f 84 00 00 00 00 00 b8 a6 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 01 c3 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8
[  435.818499][ T6116] RSP: 002b:00007ffe3f534648 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
[  435.818515][ T6116] RAX: 0000000000000000 RBX: 00007f270e23445c RCX: 00007f270e19f257
[  435.818522][ T6116] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffe3f534700
[  435.818530][ T6116] RBP: 00007ffe3f534700 R08: 00007ffe3f535700 R09: 00000000ffffffff
[  435.818538][ T6116] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffe3f535790
[  435.818545][ T6116] R13: 00007f270e23445c R14: 000000000006a5dd R15: 00007ffe3f5357d0
[  435.818564][ T6116]  </TASK>
[  435.980262][T10200] loop1: detected capacity change from 0 to 40427
[  435.992376][T10200] F2FS-fs (loop1): Small segment_count (9 < 1 * 24)
[  435.994773][T10200] F2FS-fs (loop1): Can't find valid F2FS filesystem in 1th superblock
[  435.998331][ T6116] F2FS-fs (loop2): Stopped filesystem due to reason: 3
[  436.057738][T10200] F2FS-fs (loop1): f2fs_recover_fsync_data: recovery fsync data, check_only: 0
[  436.065829][T10200] F2FS-fs (loop1): Try to recover 1th superblock, ret: 0
[  436.068276][T10200] F2FS-fs (loop1): Mounted with checkpoint version = 48b305e5
[  436.084712][ T6112] CPU: 1 UID: 0 PID: 6112 Comm: syz-executor Not tainted syzkaller #0 PREEMPT(full) 
[  436.084731][ T6112] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
[  436.084738][ T6112] Call Trace:
[  436.084743][ T6112]  <TASK>
[  436.084749][ T6112]  dump_stack_lvl+0xe8/0x150
[  436.084770][ T6112]  f2fs_stop_checkpoint+0x3f6/0x5d0
[  436.084788][ T6112]  f2fs_write_end_io+0x124b/0x1710
[  436.084814][ T6112]  __submit_merged_bio+0x258/0x6a0
[  436.084827][ T6112]  ? rcu_is_watching+0x15/0xb0
[  436.084847][ T6112]  __submit_merged_write_cond+0x3c9/0x4e0
[  436.084866][ T6112]  ? __pfx___submit_merged_write_cond+0x10/0x10
[  436.084892][ T6112]  f2fs_write_data_pages+0x2a27/0x36f0
[  436.084931][ T6112]  ? __lock_acquire+0x683/0x2cf0
[  436.084965][ T6112]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  436.085003][ T6112]  ? __pfx_hlock_conflict+0x10/0x10
[  436.085014][ T6112]  ? __bfs+0x153/0x290
[  436.085027][ T6112]  ? __pfx_hlock_conflict+0x10/0x10
[  436.085048][ T6112]  ? lockdep_unlock+0x5d/0xd0
[  436.085060][ T6112]  ? __lock_acquire+0x13e8/0x2cf0
[  436.085084][ T6112]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  436.085100][ T6112]  do_writepages+0x338/0x560
[  436.085121][ T6112]  ? do_raw_spin_unlock+0x4d/0x210
[  436.085136][ T6112]  filemap_fdatawrite+0x1e9/0x2f0
[  436.085152][ T6112]  ? __pfx_filemap_fdatawrite+0x10/0x10
[  436.085188][ T6112]  ? do_raw_spin_unlock+0x4d/0x210
[  436.085203][ T6112]  f2fs_sync_dirty_inodes+0x30e/0x830
[  436.085227][ T6112]  f2fs_write_checkpoint+0xa3d/0x2710
[  436.085256][ T6112]  ? __pfx_f2fs_write_checkpoint+0x10/0x10
[  436.085302][ T6112]  kill_f2fs_super+0x2dd/0x700
[  436.085320][ T6112]  ? __pfx_kill_f2fs_super+0x10/0x10
[  436.085342][ T6112]  ? call_rcu+0x64b/0x8b0
[  436.085351][ T6112]  ? lockdep_hardirqs_on+0x7a/0x110
[  436.085372][ T6112]  deactivate_locked_super+0xbc/0x110
[  436.085388][ T6112]  cleanup_mnt+0x3d3/0x460
[  436.085401][ T6112]  task_work_run+0x1d9/0x270
[  436.085419][ T6112]  ? __pfx_task_work_run+0x10/0x10
[  436.085441][ T6112]  exit_to_user_mode_loop+0x1fa/0x730
[  436.085455][ T6112]  ? rcu_is_watching+0x15/0xb0
[  436.085472][ T6112]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  436.085485][ T6112]  do_syscall_64+0x353/0x580
[  436.085497][ T6112]  ? trace_irq_disable+0x3b/0x140
[  436.085514][ T6112]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  436.085526][ T6112] RIP: 0033:0x7fe6d639f257
[  436.085537][ T6112] Code: a2 c7 05 9c 44 25 00 00 00 00 00 eb 96 e8 e1 12 00 00 90 31 f6 e9 09 00 00 00 66 0f 1f 84 00 00 00 00 00 b8 a6 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 01 c3 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8
[  436.085543][ T6112] RSP: 002b:00007ffc1f486698 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
[  436.085553][ T6112] RAX: 0000000000000000 RBX: 00007fe6d643445c RCX: 00007fe6d639f257
[  436.085558][ T6112] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffc1f486750
[  436.085562][ T6112] RBP: 00007ffc1f486750 R08: 00007ffc1f487750 R09: 00000000ffffffff
[  436.085567][ T6112] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc1f4877e0
[  436.085572][ T6112] R13: 00007fe6d643445c R14: 000000000006a6fa R15: 00007ffc1f487820
[  436.085615][ T6112]  </TASK>
[  436.086176][ T6112] F2FS-fs (loop1): Stopped filesystem due to reason: 3
[  436.238619][T10204] loop0: detected capacity change from 0 to 40427
[  436.246708][T10204] F2FS-fs (loop0): Small segment_count (9 < 1 * 24)
[  436.257078][T10204] F2FS-fs (loop0): Can't find valid F2FS filesystem in 1th superblock
[  436.340680][T10204] F2FS-fs (loop0): f2fs_recover_fsync_data: recovery fsync data, check_only: 0
[  436.346508][T10204] F2FS-fs (loop0): Try to recover 1th superblock, ret: 0
[  436.349263][T10204] F2FS-fs (loop0): Mounted with checkpoint version = 48b305e5
[  436.371175][ T6110] CPU: 0 UID: 0 PID: 6110 Comm: syz-executor Not tainted syzkaller #0 PREEMPT(full) 
[  436.371192][ T6110] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
[  436.371197][ T6110] Call Trace:
[  436.371201][ T6110]  <TASK>
[  436.371206][ T6110]  dump_stack_lvl+0xe8/0x150
[  436.371224][ T6110]  f2fs_stop_checkpoint+0x3f6/0x5d0
[  436.371237][ T6110]  f2fs_write_end_io+0x124b/0x1710
[  436.371257][ T6110]  __submit_merged_bio+0x258/0x6a0
[  436.371270][ T6110]  ? rcu_is_watching+0x15/0xb0
[  436.371291][ T6110]  __submit_merged_write_cond+0x3c9/0x4e0
[  436.371310][ T6110]  ? __pfx___submit_merged_write_cond+0x10/0x10
[  436.371336][ T6110]  f2fs_write_data_pages+0x2a27/0x36f0
[  436.371349][ T6110]  ? __lock_acquire+0x683/0x2cf0
[  436.371384][ T6110]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  436.371425][ T6110]  ? __pfx_hlock_conflict+0x10/0x10
[  436.371435][ T6110]  ? __bfs+0x153/0x290
[  436.371446][ T6110]  ? __pfx_hlock_conflict+0x10/0x10
[  436.371463][ T6110]  ? lockdep_unlock+0x5d/0xd0
[  436.371475][ T6110]  ? __lock_acquire+0x13e8/0x2cf0
[  436.371512][ T6110]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  436.371527][ T6110]  do_writepages+0x338/0x560
[  436.371541][ T6110]  ? do_raw_spin_unlock+0x4d/0x210
[  436.371551][ T6110]  filemap_fdatawrite+0x1e9/0x2f0
[  436.371563][ T6110]  ? __pfx_filemap_fdatawrite+0x10/0x10
[  436.371622][ T6110]  ? do_raw_spin_unlock+0x4d/0x210
[  436.371638][ T6110]  f2fs_sync_dirty_inodes+0x30e/0x830
[  436.371664][ T6110]  f2fs_write_checkpoint+0xa3d/0x2710
[  436.371692][ T6110]  ? __pfx_f2fs_write_checkpoint+0x10/0x10
[  436.371739][ T6110]  kill_f2fs_super+0x2dd/0x700
[  436.371760][ T6110]  ? __pfx_kill_f2fs_super+0x10/0x10
[  436.371782][ T6110]  ? call_rcu+0x64b/0x8b0
[  436.371792][ T6110]  ? lockdep_hardirqs_on+0x7a/0x110
[  436.371810][ T6110]  deactivate_locked_super+0xbc/0x110
[  436.371827][ T6110]  cleanup_mnt+0x3d3/0x460
[  436.371842][ T6110]  task_work_run+0x1d9/0x270
[  436.371862][ T6110]  ? __pfx_task_work_run+0x10/0x10
[  436.371902][ T6110]  exit_to_user_mode_loop+0x1fa/0x730
[  436.371915][ T6110]  ? rcu_is_watching+0x15/0xb0
[  436.371931][ T6110]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  436.371943][ T6110]  do_syscall_64+0x353/0x580
[  436.371955][ T6110]  ? trace_irq_disable+0x3b/0x140
[  436.371973][ T6110]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  436.371984][ T6110] RIP: 0033:0x7f730e59f257
[  436.371997][ T6110] Code: a2 c7 05 9c 44 25 00 00 00 00 00 eb 96 e8 e1 12 00 00 90 31 f6 e9 09 00 00 00 66 0f 1f 84 00 00 00 00 00 b8 a6 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 01 c3 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8
[  436.372007][ T6110] RSP: 002b:00007ffe088e1548 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
[  436.372020][ T6110] RAX: 0000000000000000 RBX: 00007f730e63445c RCX: 00007f730e59f257
[  436.372028][ T6110] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffe088e1600
[  436.372035][ T6110] RBP: 00007ffe088e1600 R08: 00007ffe088e2600 R09: 00000000ffffffff
[  436.372042][ T6110] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffe088e2690
[  436.372050][ T6110] R13: 00007f730e63445c R14: 000000000006a811 R15: 00007ffe088e26d0
[  436.372069][ T6110]  </TASK>
[  436.373039][ T6110] F2FS-fs (loop0): Stopped filesystem due to reason: 3
[  436.605474][T10210] loop2: detected capacity change from 0 to 40427
[  436.611835][T10210] F2FS-fs (loop2): Small segment_count (9 < 1 * 24)
[  436.620387][T10210] F2FS-fs (loop2): Can't find valid F2FS filesystem in 1th superblock
[  436.666792][T10210] F2FS-fs (loop2): f2fs_recover_fsync_data: recovery fsync data, check_only: 0
[  436.671448][T10210] F2FS-fs (loop2): Try to recover 1th superblock, ret: 0
[  436.673539][T10210] F2FS-fs (loop2): Mounted with checkpoint version = 48b305e5
[  436.691487][ T6116] CPU: 1 UID: 0 PID: 6116 Comm: syz-executor Not tainted syzkaller #0 PREEMPT(full) 
[  436.691501][ T6116] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
[  436.691506][ T6116] Call Trace:
[  436.691509][ T6116]  <TASK>
[  436.691513][ T6116]  dump_stack_lvl+0xe8/0x150
[  436.691527][ T6116]  f2fs_stop_checkpoint+0x3f6/0x5d0
[  436.691539][ T6116]  f2fs_write_end_io+0x124b/0x1710
[  436.691556][ T6116]  __submit_merged_bio+0x258/0x6a0
[  436.691564][ T6116]  ? rcu_is_watching+0x15/0xb0
[  436.691601][ T6116]  __submit_merged_write_cond+0x3c9/0x4e0
[  436.691613][ T6116]  ? __pfx___submit_merged_write_cond+0x10/0x10
[  436.691634][ T6116]  f2fs_write_data_pages+0x2a27/0x36f0
[  436.691655][ T6116]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  436.691678][ T6116]  ? __pfx_hlock_conflict+0x10/0x10
[  436.691685][ T6116]  ? __bfs+0x153/0x290
[  436.691693][ T6116]  ? __pfx_hlock_conflict+0x10/0x10
[  436.691705][ T6116]  ? lockdep_unlock+0x5d/0xd0
[  436.691713][ T6116]  ? __lock_acquire+0x13e8/0x2cf0
[  436.691730][ T6116]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  436.691740][ T6116]  do_writepages+0x338/0x560
[  436.691753][ T6116]  ? do_raw_spin_unlock+0x4d/0x210
[  436.691762][ T6116]  filemap_fdatawrite+0x1e9/0x2f0
[  436.691773][ T6116]  ? __pfx_filemap_fdatawrite+0x10/0x10
[  436.691797][ T6116]  ? do_raw_spin_unlock+0x4d/0x210
[  436.691806][ T6116]  f2fs_sync_dirty_inodes+0x30e/0x830
[  436.691820][ T6116]  f2fs_write_checkpoint+0xa3d/0x2710
[  436.691840][ T6116]  ? __pfx_f2fs_write_checkpoint+0x10/0x10
[  436.691867][ T6116]  kill_f2fs_super+0x2dd/0x700
[  436.691880][ T6116]  ? __pfx_kill_f2fs_super+0x10/0x10
[  436.691894][ T6116]  ? call_rcu+0x64b/0x8b0
[  436.691900][ T6116]  ? lockdep_hardirqs_on+0x7a/0x110
[  436.691913][ T6116]  deactivate_locked_super+0xbc/0x110
[  436.691924][ T6116]  cleanup_mnt+0x3d3/0x460
[  436.691932][ T6116]  task_work_run+0x1d9/0x270
[  436.691944][ T6116]  ? __pfx_task_work_run+0x10/0x10
[  436.691957][ T6116]  exit_to_user_mode_loop+0x1fa/0x730
[  436.691966][ T6116]  ? rcu_is_watching+0x15/0xb0
[  436.691976][ T6116]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  436.691984][ T6116]  do_syscall_64+0x353/0x580
[  436.691991][ T6116]  ? trace_irq_disable+0x3b/0x140
[  436.692002][ T6116]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  436.692009][ T6116] RIP: 0033:0x7f270e19f257
[  436.692017][ T6116] Code: a2 c7 05 9c 44 25 00 00 00 00 00 eb 96 e8 e1 12 00 00 90 31 f6 e9 09 00 00 00 66 0f 1f 84 00 00 00 00 00 b8 a6 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 01 c3 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8
[  436.692023][ T6116] RSP: 002b:00007ffe3f534648 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
[  436.692032][ T6116] RAX: 0000000000000000 RBX: 00007f270e23445c RCX: 00007f270e19f257
[  436.692037][ T6116] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffe3f534700
[  436.692041][ T6116] RBP: 00007ffe3f534700 R08: 00007ffe3f535700 R09: 00000000ffffffff
[  436.692046][ T6116] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffe3f535790
[  436.692051][ T6116] R13: 00007f270e23445c R14: 000000000006a952 R15: 00007ffe3f5357d0
[  436.692062][ T6116]  </TASK>
[  436.692065][ T6116] F2FS-fs (loop2): Stopped filesystem due to reason: 3
[  436.896606][T10212] loop1: detected capacity change from 0 to 40427
[  436.913289][T10212] F2FS-fs (loop1): Small segment_count (9 < 1 * 24)
[  436.927834][T10212] F2FS-fs (loop1): Can't find valid F2FS filesystem in 1th superblock
[  437.051539][T10212] F2FS-fs (loop1): f2fs_recover_fsync_data: recovery fsync data, check_only: 0
[  437.067737][T10212] F2FS-fs (loop1): Try to recover 1th superblock, ret: 0
[  437.074864][T10212] F2FS-fs (loop1): Mounted with checkpoint version = 48b305e5
[  437.117653][ T6112] CPU: 1 UID: 0 PID: 6112 Comm: syz-executor Not tainted syzkaller #0 PREEMPT(full) 
[  437.117675][ T6112] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
[  437.117684][ T6112] Call Trace:
[  437.117691][ T6112]  <TASK>
[  437.117697][ T6112]  dump_stack_lvl+0xe8/0x150
[  437.117719][ T6112]  f2fs_stop_checkpoint+0x3f6/0x5d0
[  437.117739][ T6112]  f2fs_write_end_io+0x124b/0x1710
[  437.117770][ T6112]  __submit_merged_bio+0x258/0x6a0
[  437.117785][ T6112]  ? rcu_is_watching+0x15/0xb0
[  437.117807][ T6112]  __submit_merged_write_cond+0x3c9/0x4e0
[  437.117827][ T6112]  ? __pfx___submit_merged_write_cond+0x10/0x10
[  437.117855][ T6112]  f2fs_write_data_pages+0x2a27/0x36f0
[  437.117872][ T6112]  ? __lock_acquire+0x683/0x2cf0
[  437.117908][ T6112]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  437.117951][ T6112]  ? __pfx_hlock_conflict+0x10/0x10
[  437.117963][ T6112]  ? __bfs+0x153/0x290
[  437.117978][ T6112]  ? __pfx_hlock_conflict+0x10/0x10
[  437.118000][ T6112]  ? lockdep_unlock+0x5d/0xd0
[  437.118012][ T6112]  ? __lock_acquire+0x13e8/0x2cf0
[  437.118043][ T6112]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  437.118062][ T6112]  do_writepages+0x338/0x560
[  437.118084][ T6112]  ? do_raw_spin_unlock+0x4d/0x210
[  437.118101][ T6112]  filemap_fdatawrite+0x1e9/0x2f0
[  437.118127][ T6112]  ? __pfx_filemap_fdatawrite+0x10/0x10
[  437.118190][ T6112]  ? do_raw_spin_unlock+0x4d/0x210
[  437.118206][ T6112]  f2fs_sync_dirty_inodes+0x30e/0x830
[  437.118232][ T6112]  f2fs_write_checkpoint+0xa3d/0x2710
[  437.118270][ T6112]  ? __pfx_f2fs_write_checkpoint+0x10/0x10
[  437.118319][ T6112]  kill_f2fs_super+0x2dd/0x700
[  437.118343][ T6112]  ? __pfx_kill_f2fs_super+0x10/0x10
[  437.118367][ T6112]  ? call_rcu+0x64b/0x8b0
[  437.118380][ T6112]  ? lockdep_hardirqs_on+0x7a/0x110
[  437.118402][ T6112]  deactivate_locked_super+0xbc/0x110
[  437.118420][ T6112]  cleanup_mnt+0x3d3/0x460
[  437.118436][ T6112]  task_work_run+0x1d9/0x270
[  437.118456][ T6112]  ? __pfx_task_work_run+0x10/0x10
[  437.118478][ T6112]  exit_to_user_mode_loop+0x1fa/0x730
[  437.118493][ T6112]  ? rcu_is_watching+0x15/0xb0
[  437.118511][ T6112]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  437.118524][ T6112]  do_syscall_64+0x353/0x580
[  437.118537][ T6112]  ? trace_irq_disable+0x3b/0x140
[  437.118556][ T6112]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  437.118593][ T6112] RIP: 0033:0x7fe6d639f257
[  437.118608][ T6112] Code: a2 c7 05 9c 44 25 00 00 00 00 00 eb 96 e8 e1 12 00 00 90 31 f6 e9 09 00 00 00 66 0f 1f 84 00 00 00 00 00 b8 a6 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 01 c3 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8
[  437.118617][ T6112] RSP: 002b:00007ffc1f486698 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
[  437.118631][ T6112] RAX: 0000000000000000 RBX: 00007fe6d643445c RCX: 00007fe6d639f257
[  437.118639][ T6112] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffc1f486750
[  437.118646][ T6112] RBP: 00007ffc1f486750 R08: 00007ffc1f487750 R09: 00000000ffffffff
[  437.118655][ T6112] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc1f4877e0
[  437.118662][ T6112] R13: 00007fe6d643445c R14: 000000000006aaf4 R15: 00007ffc1f487820
[  437.118681][ T6112]  </TASK>
[  437.240370][ T6112] F2FS-fs (loop1): Stopped filesystem due to reason: 3
[  437.321012][T10216] loop0: detected capacity change from 0 to 40427
[  437.329038][T10216] F2FS-fs (loop0): Small segment_count (9 < 1 * 24)
[  437.335686][T10216] F2FS-fs (loop0): Can't find valid F2FS filesystem in 1th superblock
[  437.432460][T10216] F2FS-fs (loop0): f2fs_recover_fsync_data: recovery fsync data, check_only: 0
[  437.447197][T10216] F2FS-fs (loop0): Try to recover 1th superblock, ret: 0
[  437.454119][T10216] F2FS-fs (loop0): Mounted with checkpoint version = 48b305e5
[  437.482732][ T6110] CPU: 0 UID: 0 PID: 6110 Comm: syz-executor Not tainted syzkaller #0 PREEMPT(full) 
[  437.482757][ T6110] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
[  437.482765][ T6110] Call Trace:
[  437.482771][ T6110]  <TASK>
[  437.482776][ T6110]  dump_stack_lvl+0xe8/0x150
[  437.482804][ T6110]  f2fs_stop_checkpoint+0x3f6/0x5d0
[  437.482826][ T6110]  f2fs_write_end_io+0x124b/0x1710
[  437.482864][ T6110]  __submit_merged_bio+0x258/0x6a0
[  437.482880][ T6110]  ? rcu_is_watching+0x15/0xb0
[  437.482900][ T6110]  __submit_merged_write_cond+0x3c9/0x4e0
[  437.482913][ T6110]  ? __pfx___submit_merged_write_cond+0x10/0x10
[  437.482931][ T6110]  f2fs_write_data_pages+0x2a27/0x36f0
[  437.482954][ T6110]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  437.482963][ T6110]  ? rcu_is_watching+0x15/0xb0
[  437.482990][ T6110]  ? rcu_is_watching+0x15/0xb0
[  437.483000][ T6110]  ? trace_sched_exit_tp+0x3a/0x130
[  437.483021][ T6110]  ? __pfx___schedule+0x10/0x10
[  437.483032][ T6110]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  437.483042][ T6110]  do_writepages+0x338/0x560
[  437.483055][ T6110]  ? preempt_schedule_common+0x82/0xd0
[  437.483062][ T6110]  ? preempt_schedule_thunk+0x16/0x40
[  437.483074][ T6110]  filemap_fdatawrite+0x1e9/0x2f0
[  437.483086][ T6110]  ? __pfx_filemap_fdatawrite+0x10/0x10
[  437.483112][ T6110]  ? do_raw_spin_unlock+0x4d/0x210
[  437.483123][ T6110]  f2fs_sync_dirty_inodes+0x30e/0x830
[  437.483139][ T6110]  f2fs_write_checkpoint+0xa3d/0x2710
[  437.483161][ T6110]  ? __pfx_f2fs_write_checkpoint+0x10/0x10
[  437.483190][ T6110]  kill_f2fs_super+0x2dd/0x700
[  437.483204][ T6110]  ? __pfx_kill_f2fs_super+0x10/0x10
[  437.483219][ T6110]  ? call_rcu+0x64b/0x8b0
[  437.483226][ T6110]  ? lockdep_hardirqs_on+0x7a/0x110
[  437.483240][ T6110]  deactivate_locked_super+0xbc/0x110
[  437.483252][ T6110]  cleanup_mnt+0x3d3/0x460
[  437.483262][ T6110]  task_work_run+0x1d9/0x270
[  437.483275][ T6110]  ? __pfx_task_work_run+0x10/0x10
[  437.483289][ T6110]  exit_to_user_mode_loop+0x1fa/0x730
[  437.483298][ T6110]  ? rcu_is_watching+0x15/0xb0
[  437.483308][ T6110]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  437.483316][ T6110]  do_syscall_64+0x353/0x580
[  437.483324][ T6110]  ? trace_irq_disable+0x3b/0x140
[  437.483339][ T6110]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  437.483346][ T6110] RIP: 0033:0x7f730e59f257
[  437.483355][ T6110] Code: a2 c7 05 9c 44 25 00 00 00 00 00 eb 96 e8 e1 12 00 00 90 31 f6 e9 09 00 00 00 66 0f 1f 84 00 00 00 00 00 b8 a6 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 01 c3 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8
[  437.483362][ T6110] RSP: 002b:00007ffe088e1548 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
[  437.483371][ T6110] RAX: 0000000000000000 RBX: 00007f730e63445c RCX: 00007f730e59f257
[  437.483377][ T6110] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffe088e1600
[  437.483381][ T6110] RBP: 00007ffe088e1600 R08: 00007ffe088e2600 R09: 00000000ffffffff
[  437.483386][ T6110] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffe088e2690
[  437.483391][ T6110] R13: 00007f730e63445c R14: 000000000006ac62 R15: 00007ffe088e26d0
[  437.483403][ T6110]  </TASK>
[  437.483406][ T6110] F2FS-fs (loop0): Stopped filesystem due to reason: 3
[  437.503292][T10220] loop2: detected capacity change from 0 to 40427
[  437.629546][T10220] F2FS-fs (loop2): Small segment_count (9 < 1 * 24)
[  437.648389][T10220] F2FS-fs (loop2): Can't find valid F2FS filesystem in 1th superblock
[  437.769600][T10220] F2FS-fs (loop2): f2fs_recover_fsync_data: recovery fsync data, check_only: 0
[  437.791002][T10220] F2FS-fs (loop2): Try to recover 1th superblock, ret: 0
[  437.793919][T10220] F2FS-fs (loop2): Mounted with checkpoint version = 48b305e5
[  437.802275][   T33] kauditd_printk_skb: 20 callbacks suppressed
[  437.802290][   T33] audit: type=1800 audit(1785886364.105:1938): pid=10220 uid=0 auid=4294967295 ses=4294967295 subj=unconfined op=collect_data cause=failed(directio) comm="syz.2.985" name="file1" dev="loop2" ino=10 res=0 errno=0
[  437.828398][   T33] audit: type=1800 audit(1785886364.125:1939): pid=10220 uid=0 auid=4294967295 ses=4294967295 subj=unconfined op=collect_data cause=failed(directio) comm="syz.2.985" name="file1" dev="loop2" ino=10 res=0 errno=0
[  437.838834][T10220] bio_check_eod: 35 callbacks suppressed
[  437.838853][T10220] syz.2.985: attempt to access beyond end of device
[  437.838853][T10220] loop2: rw=2049, sector=53248, nr_sectors = 976 limit=40427
[  437.858971][T10220] syz.2.985: attempt to access beyond end of device
[  437.858971][T10220] loop2: rw=8423425, sector=54224, nr_sectors = 8 limit=40427
[  437.885973][ T6116] syz-executor: attempt to access beyond end of device
[  437.885973][ T6116] loop2: rw=2049, sector=45096, nr_sectors = 8 limit=40427
[  437.892366][T10224] loop1: detected capacity change from 0 to 40427
[  437.892851][ T6116] CPU: 0 UID: 0 PID: 6116 Comm: syz-executor Not tainted syzkaller #0 PREEMPT(full) 
[  437.892871][ T6116] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
[  437.892880][ T6116] Call Trace:
[  437.892887][ T6116]  <TASK>
[  437.892893][ T6116]  dump_stack_lvl+0xe8/0x150
[  437.892921][ T6116]  f2fs_stop_checkpoint+0x3f6/0x5d0
[  437.892943][ T6116]  f2fs_write_end_io+0x124b/0x1710
[  437.892976][ T6116]  __submit_merged_bio+0x258/0x6a0
[  437.892990][ T6116]  ? rcu_is_watching+0x15/0xb0
[  437.893013][ T6116]  __submit_merged_write_cond+0x3c9/0x4e0
[  437.893036][ T6116]  ? __pfx___submit_merged_write_cond+0x10/0x10
[  437.893069][ T6116]  f2fs_write_data_pages+0x2a27/0x36f0
[  437.893085][ T6116]  ? lock_acquire+0x106/0x350
[  437.893127][ T6116]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  437.893143][ T6116]  ? __folio_batch_release+0x48/0x90
[  437.893220][ T6116]  ? __pfx_hlock_conflict+0x10/0x10
[  437.893231][ T6116]  ? __bfs+0x153/0x290
[  437.893246][ T6116]  ? __pfx_hlock_conflict+0x10/0x10
[  437.893270][ T6116]  ? lockdep_unlock+0x5d/0xd0
[  437.893283][ T6116]  ? __lock_acquire+0x13e8/0x2cf0
[  437.893325][ T6116]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  437.893343][ T6116]  do_writepages+0x338/0x560
[  437.893367][ T6116]  ? do_raw_spin_unlock+0x4d/0x210
[  437.893386][ T6116]  filemap_fdatawrite+0x1e9/0x2f0
[  437.893406][ T6116]  ? __pfx_filemap_fdatawrite+0x10/0x10
[  437.893451][ T6116]  ? do_raw_spin_unlock+0x4d/0x210
[  437.893469][ T6116]  f2fs_sync_dirty_inodes+0x30e/0x830
[  437.893495][ T6116]  f2fs_write_checkpoint+0xa3d/0x2710
[  437.893538][ T6116]  ? __pfx_f2fs_write_checkpoint+0x10/0x10
[  437.893622][ T6116]  kill_f2fs_super+0x2dd/0x700
[  437.893648][ T6116]  ? __pfx_kill_f2fs_super+0x10/0x10
[  437.893675][ T6116]  ? call_rcu+0x64b/0x8b0
[  437.893686][ T6116]  ? lockdep_hardirqs_on+0x7a/0x110
[  437.893712][ T6116]  deactivate_locked_super+0xbc/0x110
[  437.893732][ T6116]  cleanup_mnt+0x3d3/0x460
[  437.893749][ T6116]  task_work_run+0x1d9/0x270
[  437.893770][ T6116]  ? __pfx_task_work_run+0x10/0x10
[  437.893796][ T6116]  exit_to_user_mode_loop+0x1fa/0x730
[  437.893813][ T6116]  ? rcu_is_watching+0x15/0xb0
[  437.893830][ T6116]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  437.893845][ T6116]  do_syscall_64+0x353/0x580
[  437.893859][ T6116]  ? trace_irq_disable+0x3b/0x140
[  437.893881][ T6116]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  437.893895][ T6116] RIP: 0033:0x7f270e19f257
[  437.893909][ T6116] Code: a2 c7 05 9c 44 25 00 00 00 00 00 eb 96 e8 e1 12 00 00 90 31 f6 e9 09 00 00 00 66 0f 1f 84 00 00 00 00 00 b8 a6 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 01 c3 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8
[  437.893918][ T6116] RSP: 002b:00007ffe3f534648 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
[  437.893932][ T6116] RAX: 0000000000000000 RBX: 00007f270e23445c RCX: 00007f270e19f257
[  437.893941][ T6116] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffe3f534700
[  437.893947][ T6116] RBP: 00007ffe3f534700 R08: 00007ffe3f535700 R09: 00000000ffffffff
[  437.893955][ T6116] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffe3f535790
[  437.893963][ T6116] R13: 00007f270e23445c R14: 000000000006adf9 R15: 00007ffe3f5357d0
[  437.893984][ T6116]  </TASK>
[  437.894862][ T6116] F2FS-fs (loop2): Stopped filesystem due to reason: 3
[  437.913239][T10224] F2FS-fs (loop1): Small segment_count (9 < 1 * 24)
[  438.030121][T10224] F2FS-fs (loop1): Can't find valid F2FS filesystem in 1th superblock
[  438.139228][T10224] F2FS-fs (loop1): f2fs_recover_fsync_data: recovery fsync data, check_only: 0
[  438.153685][T10224] F2FS-fs (loop1): Try to recover 1th superblock, ret: 0
[  438.168468][T10224] F2FS-fs (loop1): Mounted with checkpoint version = 48b305e5
[  438.174193][   T33] audit: type=1800 audit(1785886364.475:1940): pid=10224 uid=0 auid=4294967295 ses=4294967295 subj=unconfined op=collect_data cause=failed(directio) comm="syz.1.986" name="file1" dev="loop1" ino=10 res=0 errno=0
[  438.187904][   T33] audit: type=1800 audit(1785886364.495:1941): pid=10224 uid=0 auid=4294967295 ses=4294967295 subj=unconfined op=collect_data cause=failed(directio) comm="syz.1.986" name="file1" dev="loop1" ino=10 res=0 errno=0
[  438.208388][T10224] syz.1.986: attempt to access beyond end of device
[  438.208388][T10224] loop1: rw=2049, sector=53248, nr_sectors = 976 limit=40427
[  438.229121][T10224] syz.1.986: attempt to access beyond end of device
[  438.229121][T10224] loop1: rw=8423425, sector=54224, nr_sectors = 8 limit=40427
[  438.255611][ T6112] syz-executor: attempt to access beyond end of device
[  438.255611][ T6112] loop1: rw=2049, sector=45096, nr_sectors = 8 limit=40427
[  438.266476][ T6112] CPU: 0 UID: 0 PID: 6112 Comm: syz-executor Not tainted syzkaller #0 PREEMPT(full) 
[  438.266501][ T6112] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
[  438.266510][ T6112] Call Trace:
[  438.266516][ T6112]  <TASK>
[  438.266523][ T6112]  dump_stack_lvl+0xe8/0x150
[  438.266549][ T6112]  f2fs_stop_checkpoint+0x3f6/0x5d0
[  438.266603][ T6112]  f2fs_write_end_io+0x124b/0x1710
[  438.266635][ T6112]  __submit_merged_bio+0x258/0x6a0
[  438.266650][ T6112]  ? rcu_is_watching+0x15/0xb0
[  438.266673][ T6112]  __submit_merged_write_cond+0x3c9/0x4e0
[  438.266694][ T6112]  ? __pfx___submit_merged_write_cond+0x10/0x10
[  438.266725][ T6112]  f2fs_write_data_pages+0x2a27/0x36f0
[  438.266767][ T6112]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  438.266813][ T6112]  ? raw_spin_rq_lock_nested+0x2d/0x160
[  438.266830][ T6112]  ? __pfx_hlock_conflict+0x10/0x10
[  438.266840][ T6112]  ? __bfs+0x153/0x290
[  438.266855][ T6112]  ? __pfx_hlock_conflict+0x10/0x10
[  438.266880][ T6112]  ? lockdep_unlock+0x5d/0xd0
[  438.266894][ T6112]  ? __lock_acquire+0x13e8/0x2cf0
[  438.266925][ T6112]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  438.266942][ T6112]  do_writepages+0x338/0x560
[  438.266967][ T6112]  ? do_raw_spin_unlock+0x4d/0x210
[  438.266984][ T6112]  filemap_fdatawrite+0x1e9/0x2f0
[  438.267005][ T6112]  ? __pfx_filemap_fdatawrite+0x10/0x10
[  438.267072][ T6112]  ? do_raw_spin_unlock+0x4d/0x210
[  438.267091][ T6112]  f2fs_sync_dirty_inodes+0x30e/0x830
[  438.267121][ T6112]  f2fs_write_checkpoint+0xa3d/0x2710
[  438.267162][ T6112]  ? __pfx_f2fs_write_checkpoint+0x10/0x10
[  438.267216][ T6112]  kill_f2fs_super+0x2dd/0x700
[  438.267241][ T6112]  ? __pfx_kill_f2fs_super+0x10/0x10
[  438.267266][ T6112]  ? call_rcu+0x64b/0x8b0
[  438.267278][ T6112]  ? lockdep_hardirqs_on+0x7a/0x110
[  438.267303][ T6112]  deactivate_locked_super+0xbc/0x110
[  438.267331][ T6112]  cleanup_mnt+0x3d3/0x460
[  438.267348][ T6112]  task_work_run+0x1d9/0x270
[  438.267369][ T6112]  ? __pfx_task_work_run+0x10/0x10
[  438.267394][ T6112]  exit_to_user_mode_loop+0x1fa/0x730
[  438.267410][ T6112]  ? rcu_is_watching+0x15/0xb0
[  438.267428][ T6112]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  438.267443][ T6112]  do_syscall_64+0x353/0x580
[  438.267456][ T6112]  ? trace_irq_disable+0x3b/0x140
[  438.267476][ T6112]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  438.267489][ T6112] RIP: 0033:0x7fe6d639f257
[  438.267503][ T6112] Code: a2 c7 05 9c 44 25 00 00 00 00 00 eb 96 e8 e1 12 00 00 90 31 f6 e9 09 00 00 00 66 0f 1f 84 00 00 00 00 00 b8 a6 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 01 c3 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8
[  438.267513][ T6112] RSP: 002b:00007ffc1f486698 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
[  438.267528][ T6112] RAX: 0000000000000000 RBX: 00007fe6d643445c RCX: 00007fe6d639f257
[  438.267536][ T6112] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffc1f486750
[  438.267544][ T6112] RBP: 00007ffc1f486750 R08: 00007ffc1f487750 R09: 00000000ffffffff
[  438.267579][ T6112] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc1f4877e0
[  438.267587][ T6112] R13: 00007fe6d643445c R14: 000000000006af65 R15: 00007ffc1f487820
[  438.267609][ T6112]  </TASK>
[  438.278356][ T6112] F2FS-fs (loop1): Stopped filesystem due to reason: 3
[  438.438040][T10228] loop0: detected capacity change from 0 to 40427
[  438.461139][T10228] F2FS-fs (loop0): Small segment_count (9 < 1 * 24)
[  438.469266][T10228] F2FS-fs (loop0): Can't find valid F2FS filesystem in 1th superblock
[  438.586878][T10228] F2FS-fs (loop0): f2fs_recover_fsync_data: recovery fsync data, check_only: 0
[  438.597675][T10228] F2FS-fs (loop0): Try to recover 1th superblock, ret: 0
[  438.602474][T10228] F2FS-fs (loop0): Mounted with checkpoint version = 48b305e5
[  438.608885][   T33] audit: type=1800 audit(1785886364.915:1942): pid=10228 uid=0 auid=4294967295 ses=4294967295 subj=unconfined op=collect_data cause=failed(directio) comm="syz.0.987" name="file1" dev="loop0" ino=10 res=0 errno=0
[  438.616293][T10228] syz.0.987: attempt to access beyond end of device
[  438.616293][T10228] loop0: rw=2049, sector=53248, nr_sectors = 976 limit=40427
[  438.628057][T10228] syz.0.987: attempt to access beyond end of device
[  438.628057][T10228] loop0: rw=8423425, sector=54224, nr_sectors = 8 limit=40427
[  438.639919][   T33] audit: type=1800 audit(1785886364.915:1943): pid=10228 uid=0 auid=4294967295 ses=4294967295 subj=unconfined op=collect_data cause=failed(directio) comm="syz.0.987" name="file1" dev="loop0" ino=10 res=0 errno=0
[  438.652891][ T6110] syz-executor: attempt to access beyond end of device
[  438.652891][ T6110] loop0: rw=2049, sector=45096, nr_sectors = 8 limit=40427
[  438.671492][ T6110] CPU: 0 UID: 0 PID: 6110 Comm: syz-executor Not tainted syzkaller #0 PREEMPT(full) 
[  438.671515][ T6110] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
[  438.671526][ T6110] Call Trace:
[  438.671532][ T6110]  <TASK>
[  438.671538][ T6110]  dump_stack_lvl+0xe8/0x150
[  438.671592][ T6110]  f2fs_stop_checkpoint+0x3f6/0x5d0
[  438.671614][ T6110]  f2fs_write_end_io+0x124b/0x1710
[  438.671647][ T6110]  __submit_merged_bio+0x258/0x6a0
[  438.671662][ T6110]  ? rcu_is_watching+0x15/0xb0
[  438.671685][ T6110]  __submit_merged_write_cond+0x3c9/0x4e0
[  438.671728][ T6110]  ? __pfx___submit_merged_write_cond+0x10/0x10
[  438.671763][ T6110]  f2fs_write_data_pages+0x2a27/0x36f0
[  438.671804][ T6110]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  438.671853][ T6110]  ? __pfx_hlock_conflict+0x10/0x10
[  438.671865][ T6110]  ? __bfs+0x153/0x290
[  438.671880][ T6110]  ? __pfx_hlock_conflict+0x10/0x10
[  438.671926][ T6110]  ? lockdep_unlock+0x5d/0xd0
[  438.671940][ T6110]  ? __lock_acquire+0x13e8/0x2cf0
[  438.671976][ T6110]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  438.671995][ T6110]  do_writepages+0x338/0x560
[  438.672021][ T6110]  ? do_raw_spin_unlock+0x4d/0x210
[  438.672038][ T6110]  filemap_fdatawrite+0x1e9/0x2f0
[  438.672058][ T6110]  ? __pfx_filemap_fdatawrite+0x10/0x10
[  438.672108][ T6110]  ? do_raw_spin_unlock+0x4d/0x210
[  438.672125][ T6110]  f2fs_sync_dirty_inodes+0x30e/0x830
[  438.672156][ T6110]  f2fs_write_checkpoint+0xa3d/0x2710
[  438.672199][ T6110]  ? __pfx_f2fs_write_checkpoint+0x10/0x10
[  438.672256][ T6110]  kill_f2fs_super+0x2dd/0x700
[  438.672280][ T6110]  ? __pfx_kill_f2fs_super+0x10/0x10
[  438.672313][ T6110]  ? call_rcu+0x64b/0x8b0
[  438.672325][ T6110]  ? lockdep_hardirqs_on+0x7a/0x110
[  438.672348][ T6110]  deactivate_locked_super+0xbc/0x110
[  438.672368][ T6110]  cleanup_mnt+0x3d3/0x460
[  438.672385][ T6110]  task_work_run+0x1d9/0x270
[  438.672406][ T6110]  ? __pfx_task_work_run+0x10/0x10
[  438.672431][ T6110]  exit_to_user_mode_loop+0x1fa/0x730
[  438.672446][ T6110]  ? rcu_is_watching+0x15/0xb0
[  438.672465][ T6110]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  438.672478][ T6110]  do_syscall_64+0x353/0x580
[  438.672492][ T6110]  ? trace_irq_disable+0x3b/0x140
[  438.672513][ T6110]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  438.672525][ T6110] RIP: 0033:0x7f730e59f257
[  438.672539][ T6110] Code: a2 c7 05 9c 44 25 00 00 00 00 00 eb 96 e8 e1 12 00 00 90 31 f6 e9 09 00 00 00 66 0f 1f 84 00 00 00 00 00 b8 a6 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 01 c3 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8
[  438.672581][ T6110] RSP: 002b:00007ffe088e1548 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
[  438.672597][ T6110] RAX: 0000000000000000 RBX: 00007f730e63445c RCX: 00007f730e59f257
[  438.672606][ T6110] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffe088e1600
[  438.672613][ T6110] RBP: 00007ffe088e1600 R08: 00007ffe088e2600 R09: 00000000ffffffff
[  438.672621][ T6110] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffe088e2690
[  438.672629][ T6110] R13: 00007f730e63445c R14: 000000000006b0f7 R15: 00007ffe088e26d0
[  438.672651][ T6110]  </TASK>
[  438.672889][T10232] F2FS-fs (loop2): Small segment_count (9 < 1 * 24)
[  438.673541][ T6110] F2FS-fs (loop0): Stopped filesystem due to reason: 3
[  438.677713][T10232] F2FS-fs (loop2): Can't find valid F2FS filesystem in 1th superblock
[  438.901119][T10232] F2FS-fs (loop2): f2fs_recover_fsync_data: recovery fsync data, check_only: 0
[  438.911461][T10232] F2FS-fs (loop2): Try to recover 1th superblock, ret: 0
[  438.918932][T10232] F2FS-fs (loop2): Mounted with checkpoint version = 48b305e5
[  438.932696][   T33] audit: type=1800 audit(1785886365.235:1944): pid=10232 uid=0 auid=4294967295 ses=4294967295 subj=unconfined op=collect_data cause=failed(directio) comm="syz.2.988" name="file1" dev="loop2" ino=10 res=0 errno=0
[  438.948308][   T33] audit: type=1800 audit(1785886365.235:1945): pid=10232 uid=0 auid=4294967295 ses=4294967295 subj=unconfined op=collect_data cause=failed(directio) comm="syz.2.988" name="file1" dev="loop2" ino=10 res=0 errno=0
[  438.966798][T10232] syz.2.988: attempt to access beyond end of device
[  438.966798][T10232] loop2: rw=2049, sector=53248, nr_sectors = 976 limit=40427
[  438.989628][ T6116] CPU: 0 UID: 0 PID: 6116 Comm: syz-executor Not tainted syzkaller #0 PREEMPT(full) 
[  438.989654][ T6116] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
[  438.989663][ T6116] Call Trace:
[  438.989670][ T6116]  <TASK>
[  438.989677][ T6116]  dump_stack_lvl+0xe8/0x150
[  438.989703][ T6116]  f2fs_stop_checkpoint+0x3f6/0x5d0
[  438.989725][ T6116]  f2fs_write_end_io+0x124b/0x1710
[  438.989758][ T6116]  __submit_merged_bio+0x258/0x6a0
[  438.989773][ T6116]  ? rcu_is_watching+0x15/0xb0
[  438.989797][ T6116]  __submit_merged_write_cond+0x3c9/0x4e0
[  438.989818][ T6116]  ? __pfx___submit_merged_write_cond+0x10/0x10
[  438.989850][ T6116]  f2fs_write_data_pages+0x2a27/0x36f0
[  438.989866][ T6116]  ? __lock_acquire+0x683/0x2cf0
[  438.989907][ T6116]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  438.989923][ T6116]  ? __lock_acquire+0x13e8/0x2cf0
[  438.989971][ T6116]  ? kvm_clock_get_cycles+0x47/0x60
[  438.990030][ T6116]  ? irqentry_exit+0x218/0x8f0
[  438.990056][ T6116]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  438.990074][ T6116]  do_writepages+0x338/0x560
[  438.990099][ T6116]  ? do_raw_spin_unlock+0x4d/0x210
[  438.990117][ T6116]  filemap_fdatawrite+0x1e9/0x2f0
[  438.990138][ T6116]  ? __pfx_filemap_fdatawrite+0x10/0x10
[  438.990186][ T6116]  ? do_raw_spin_unlock+0x4d/0x210
2026/08/04 23:32:45 executed programs: 980
[  438.990203][ T6116]  f2fs_sync_dirty_inodes+0x30e/0x830
[  438.990232][ T6116]  f2fs_write_checkpoint+0xa3d/0x2710
[  438.990273][ T6116]  ? __pfx_f2fs_write_checkpoint+0x10/0x10
[  438.990339][ T6116]  kill_f2fs_super+0x2dd/0x700
[  438.990363][ T6116]  ? __pfx_kill_f2fs_super+0x10/0x10
[  438.990389][ T6116]  ? call_rcu+0x64b/0x8b0
[  438.990400][ T6116]  ? lockdep_hardirqs_on+0x7a/0x110
[  438.990423][ T6116]  deactivate_locked_super+0xbc/0x110
[  438.990443][ T6116]  cleanup_mnt+0x3d3/0x460
[  438.990461][ T6116]  task_work_run+0x1d9/0x270
[  438.990482][ T6116]  ? __pfx_task_work_run+0x10/0x10
[  438.990507][ T6116]  exit_to_user_mode_loop+0x1fa/0x730
[  438.990523][ T6116]  ? rcu_is_watching+0x15/0xb0
[  438.990566][ T6116]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  438.990582][ T6116]  do_syscall_64+0x353/0x580
[  438.990595][ T6116]  ? trace_irq_disable+0x3b/0x140
[  438.990615][ T6116]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  438.990628][ T6116] RIP: 0033:0x7f270e19f257
[  438.990641][ T6116] Code: a2 c7 05 9c 44 25 00 00 00 00 00 eb 96 e8 e1 12 00 00 90 31 f6 e9 09 00 00 00 66 0f 1f 84 00 00 00 00 00 b8 a6 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 01 c3 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8
[  438.990652][ T6116] RSP: 002b:00007ffe3f534648 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
[  438.990667][ T6116] RAX: 0000000000000000 RBX: 00007f270e23445c RCX: 00007f270e19f257
[  438.990675][ T6116] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffe3f534700
[  438.990683][ T6116] RBP: 00007ffe3f534700 R08: 00007ffe3f535700 R09: 00000000ffffffff
[  438.990692][ T6116] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffe3f535790
[  438.990699][ T6116] R13: 00007f270e23445c R14: 000000000006b222 R15: 00007ffe3f5357d0
[  438.990721][ T6116]  </TASK>
[  438.998079][ T6116] F2FS-fs (loop2): Stopped filesystem due to reason: 3
[  439.171180][T10236] F2FS-fs (loop1): Small segment_count (9 < 1 * 24)
[  439.174042][T10236] F2FS-fs (loop1): Can't find valid F2FS filesystem in 1th superblock
[  439.309805][T10236] F2FS-fs (loop1): f2fs_recover_fsync_data: recovery fsync data, check_only: 0
[  439.330569][T10236] F2FS-fs (loop1): Try to recover 1th superblock, ret: 0
[  439.334982][T10236] F2FS-fs (loop1): Mounted with checkpoint version = 48b305e5
[  439.346588][   T33] audit: type=1800 audit(1785886365.645:1946): pid=10236 uid=0 auid=4294967295 ses=4294967295 subj=unconfined op=collect_data cause=failed(directio) comm="syz.1.989" name="file1" dev="loop1" ino=10 res=0 errno=0
[  439.361365][   T33] audit: type=1800 audit(1785886365.645:1947): pid=10236 uid=0 auid=4294967295 ses=4294967295 subj=unconfined op=collect_data cause=failed(directio) comm="syz.1.989" name="file1" dev="loop1" ino=10 res=0 errno=0
[  439.383675][ T6112] CPU: 1 UID: 0 PID: 6112 Comm: syz-executor Not tainted syzkaller #0 PREEMPT(full) 
[  439.383697][ T6112] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
[  439.383704][ T6112] Call Trace:
[  439.383710][ T6112]  <TASK>
[  439.383716][ T6112]  dump_stack_lvl+0xe8/0x150
[  439.383738][ T6112]  f2fs_stop_checkpoint+0x3f6/0x5d0
[  439.383756][ T6112]  f2fs_write_end_io+0x124b/0x1710
[  439.383782][ T6112]  __submit_merged_bio+0x258/0x6a0
[  439.383795][ T6112]  ? rcu_is_watching+0x15/0xb0
[  439.383816][ T6112]  __submit_merged_write_cond+0x3c9/0x4e0
[  439.383835][ T6112]  ? __pfx___submit_merged_write_cond+0x10/0x10
[  439.383864][ T6112]  f2fs_write_data_pages+0x2a27/0x36f0
[  439.383880][ T6112]  ? __lock_acquire+0x683/0x2cf0
[  439.383918][ T6112]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  439.383959][ T6112]  ? __pfx_hlock_conflict+0x10/0x10
[  439.383997][ T6112]  ? __bfs+0x153/0x290
[  439.384011][ T6112]  ? __pfx_hlock_conflict+0x10/0x10
[  439.384034][ T6112]  ? lockdep_unlock+0x5d/0xd0
[  439.384047][ T6112]  ? __lock_acquire+0x13e8/0x2cf0
[  439.384086][ T6112]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  439.384103][ T6112]  do_writepages+0x338/0x560
[  439.384127][ T6112]  ? do_raw_spin_unlock+0x4d/0x210
[  439.384144][ T6112]  filemap_fdatawrite+0x1e9/0x2f0
[  439.384164][ T6112]  ? __pfx_filemap_fdatawrite+0x10/0x10
[  439.384209][ T6112]  ? do_raw_spin_unlock+0x4d/0x210
[  439.384225][ T6112]  f2fs_sync_dirty_inodes+0x30e/0x830
[  439.384253][ T6112]  f2fs_write_checkpoint+0xa3d/0x2710
[  439.384291][ T6112]  ? __pfx_f2fs_write_checkpoint+0x10/0x10
[  439.384343][ T6112]  kill_f2fs_super+0x2dd/0x700
[  439.384366][ T6112]  ? __pfx_kill_f2fs_super+0x10/0x10
[  439.384391][ T6112]  ? call_rcu+0x64b/0x8b0
[  439.384401][ T6112]  ? lockdep_hardirqs_on+0x7a/0x110
[  439.384425][ T6112]  deactivate_locked_super+0xbc/0x110
[  439.384444][ T6112]  cleanup_mnt+0x3d3/0x460
[  439.384460][ T6112]  task_work_run+0x1d9/0x270
[  439.384480][ T6112]  ? __pfx_task_work_run+0x10/0x10
[  439.384504][ T6112]  exit_to_user_mode_loop+0x1fa/0x730
[  439.384519][ T6112]  ? rcu_is_watching+0x15/0xb0
[  439.384563][ T6112]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  439.384579][ T6112]  do_syscall_64+0x353/0x580
[  439.384593][ T6112]  ? trace_irq_disable+0x3b/0x140
[  439.384612][ T6112]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  439.384624][ T6112] RIP: 0033:0x7fe6d639f257
[  439.384637][ T6112] 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
[  439.384647][ T6112] RSP: 002b:00007ffc1f486698 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
[  439.384662][ T6112] RAX: 0000000000000000 RBX: 00007fe6d643445c RCX: 00007fe6d639f257
[  439.384672][ T6112] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffc1f486750
[  439.384679][ T6112] RBP: 00007ffc1f486750 R08: 00007ffc1f487750 R09: 00000000ffffffff
[  439.384687][ T6112] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc1f4877e0
[  439.384695][ T6112] R13: 00007fe6d643445c R14: 000000000006b3d5 R15: 00007ffc1f487820
[  439.384714][ T6112]  </TASK>
[  439.384762][ T6112] F2FS-fs (loop1): Stopped filesystem due to reason: 3
[  439.515992][T10240] F2FS-fs (loop0): Small segment_count (9 < 1 * 24)
[  439.528747][T10240] F2FS-fs (loop0): Can't find valid F2FS filesystem in 1th superblock
[  439.616030][T10240] F2FS-fs (loop0): f2fs_recover_fsync_data: recovery fsync data, check_only: 0
[  439.637875][T10240] F2FS-fs (loop0): Try to recover 1th superblock, ret: 0
[  439.646787][T10240] F2FS-fs (loop0): Mounted with checkpoint version = 48b305e5
[  439.691931][ T6110] CPU: 0 UID: 0 PID: 6110 Comm: syz-executor Not tainted syzkaller #0 PREEMPT(full) 
[  439.691956][ T6110] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
[  439.691964][ T6110] Call Trace:
[  439.691971][ T6110]  <TASK>
[  439.691976][ T6110]  dump_stack_lvl+0xe8/0x150
[  439.692000][ T6110]  f2fs_stop_checkpoint+0x3f6/0x5d0
[  439.692021][ T6110]  f2fs_write_end_io+0x124b/0x1710
[  439.692052][ T6110]  __submit_merged_bio+0x258/0x6a0
[  439.692066][ T6110]  ? rcu_is_watching+0x15/0xb0
[  439.692115][ T6110]  __submit_merged_write_cond+0x3c9/0x4e0
[  439.692136][ T6110]  ? __pfx___submit_merged_write_cond+0x10/0x10
[  439.692164][ T6110]  f2fs_write_data_pages+0x2a27/0x36f0
[  439.692181][ T6110]  ? __lock_acquire+0x683/0x2cf0
[  439.692218][ T6110]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  439.692261][ T6110]  ? __pfx_hlock_conflict+0x10/0x10
[  439.692272][ T6110]  ? __bfs+0x153/0x290
[  439.692285][ T6110]  ? __pfx_hlock_conflict+0x10/0x10
[  439.692315][ T6110]  ? lockdep_unlock+0x5d/0xd0
[  439.692327][ T6110]  ? __lock_acquire+0x13e8/0x2cf0
[  439.692359][ T6110]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  439.692376][ T6110]  do_writepages+0x338/0x560
[  439.692399][ T6110]  ? do_raw_spin_unlock+0x4d/0x210
[  439.692416][ T6110]  filemap_fdatawrite+0x1e9/0x2f0
[  439.692435][ T6110]  ? __pfx_filemap_fdatawrite+0x10/0x10
[  439.692479][ T6110]  ? do_raw_spin_unlock+0x4d/0x210
[  439.692495][ T6110]  f2fs_sync_dirty_inodes+0x30e/0x830
[  439.692524][ T6110]  f2fs_write_checkpoint+0xa3d/0x2710
[  439.692593][ T6110]  ? __pfx_f2fs_write_checkpoint+0x10/0x10
[  439.692644][ T6110]  kill_f2fs_super+0x2dd/0x700
[  439.692667][ T6110]  ? __pfx_kill_f2fs_super+0x10/0x10
[  439.692692][ T6110]  ? call_rcu+0x64b/0x8b0
[  439.692703][ T6110]  ? lockdep_hardirqs_on+0x7a/0x110
[  439.692726][ T6110]  deactivate_locked_super+0xbc/0x110
[  439.692746][ T6110]  cleanup_mnt+0x3d3/0x460
[  439.692763][ T6110]  task_work_run+0x1d9/0x270
[  439.692784][ T6110]  ? __pfx_task_work_run+0x10/0x10
[  439.692806][ T6110]  exit_to_user_mode_loop+0x1fa/0x730
[  439.692822][ T6110]  ? rcu_is_watching+0x15/0xb0
[  439.692839][ T6110]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  439.692852][ T6110]  do_syscall_64+0x353/0x580
[  439.692866][ T6110]  ? trace_irq_disable+0x3b/0x140
[  439.692885][ T6110]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  439.692897][ T6110] RIP: 0033:0x7f730e59f257
[  439.692912][ T6110] 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
[  439.692923][ T6110] RSP: 002b:00007ffe088e1548 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
[  439.692938][ T6110] RAX: 0000000000000000 RBX: 00007f730e63445c RCX: 00007f730e59f257
[  439.692947][ T6110] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffe088e1600
[  439.692954][ T6110] RBP: 00007ffe088e1600 R08: 00007ffe088e2600 R09: 00000000ffffffff
[  439.692963][ T6110] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffe088e2690
[  439.692970][ T6110] R13: 00007f730e63445c R14: 000000000006b4fb R15: 00007ffe088e26d0
[  439.692988][ T6110]  </TASK>
[  439.693952][ T6110] F2FS-fs (loop0): Stopped filesystem due to reason: 3
[  439.933821][T10248] F2FS-fs (loop1): Small segment_count (9 < 1 * 24)
[  439.936043][T10248] F2FS-fs (loop1): Can't find valid F2FS filesystem in 1th superblock
[  439.974564][T10244] F2FS-fs (loop2): Small segment_count (9 < 1 * 24)
[  439.994162][T10244] F2FS-fs (loop2): Can't find valid F2FS filesystem in 1th superblock
[  440.033808][T10248] F2FS-fs (loop1): f2fs_recover_fsync_data: recovery fsync data, check_only: 0
[  440.049257][T10248] F2FS-fs (loop1): Try to recover 1th superblock, ret: 0
[  440.057860][T10248] F2FS-fs (loop1): Mounted with checkpoint version = 48b305e5
[  440.071882][T10244] F2FS-fs (loop2): f2fs_recover_fsync_data: recovery fsync data, check_only: 0
[  440.080669][T10244] F2FS-fs (loop2): Try to recover 1th superblock, ret: 0
[  440.083445][T10244] F2FS-fs (loop2): Mounted with checkpoint version = 48b305e5
[  440.104374][ T6116] CPU: 1 UID: 0 PID: 6116 Comm: syz-executor Not tainted syzkaller #0 PREEMPT(full) 
[  440.104394][ T6116] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
[  440.104402][ T6116] Call Trace:
[  440.104408][ T6116]  <TASK>
[  440.104414][ T6116]  dump_stack_lvl+0xe8/0x150
[  440.104437][ T6116]  f2fs_stop_checkpoint+0x3f6/0x5d0
[  440.104457][ T6116]  f2fs_write_end_io+0x124b/0x1710
[  440.104487][ T6116]  __submit_merged_bio+0x258/0x6a0
[  440.104501][ T6116]  ? rcu_is_watching+0x15/0xb0
[  440.104521][ T6116]  __submit_merged_write_cond+0x3c9/0x4e0
[  440.104575][ T6116]  ? __pfx___submit_merged_write_cond+0x10/0x10
[  440.104603][ T6116]  f2fs_write_data_pages+0x2a27/0x36f0
[  440.104637][ T6116]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  440.104663][ T6116]  ? __pfx_hlock_conflict+0x10/0x10
[  440.104670][ T6116]  ? __bfs+0x153/0x290
[  440.104678][ T6116]  ? __pfx_hlock_conflict+0x10/0x10
[  440.104690][ T6116]  ? lockdep_unlock+0x5d/0xd0
[  440.104697][ T6116]  ? __lock_acquire+0x13e8/0x2cf0
[  440.104715][ T6116]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  440.104725][ T6116]  do_writepages+0x338/0x560
[  440.104739][ T6116]  ? do_raw_spin_unlock+0x4d/0x210
[  440.104765][ T6116]  filemap_fdatawrite+0x1e9/0x2f0
[  440.104779][ T6116]  ? __pfx_filemap_fdatawrite+0x10/0x10
[  440.104803][ T6116]  ? do_raw_spin_unlock+0x4d/0x210
[  440.104812][ T6116]  f2fs_sync_dirty_inodes+0x30e/0x830
[  440.104828][ T6116]  f2fs_write_checkpoint+0xa3d/0x2710
[  440.104850][ T6116]  ? __pfx_f2fs_write_checkpoint+0x10/0x10
[  440.104878][ T6116]  kill_f2fs_super+0x2dd/0x700
[  440.104892][ T6116]  ? __pfx_kill_f2fs_super+0x10/0x10
[  440.104906][ T6116]  ? call_rcu+0x64b/0x8b0
[  440.104912][ T6116]  ? lockdep_hardirqs_on+0x7a/0x110
[  440.104926][ T6116]  deactivate_locked_super+0xbc/0x110
[  440.104938][ T6116]  cleanup_mnt+0x3d3/0x460
[  440.104948][ T6116]  task_work_run+0x1d9/0x270
[  440.104959][ T6116]  ? __pfx_task_work_run+0x10/0x10
[  440.104973][ T6116]  exit_to_user_mode_loop+0x1fa/0x730
[  440.104982][ T6116]  ? rcu_is_watching+0x15/0xb0
[  440.104992][ T6116]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  440.105000][ T6116]  do_syscall_64+0x353/0x580
[  440.105011][ T6116]  ? trace_irq_disable+0x3b/0x140
[  440.105027][ T6116]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  440.105038][ T6116] RIP: 0033:0x7f270e19f257
[  440.105049][ T6116] 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
[  440.105067][ T6116] RSP: 002b:00007ffe3f534648 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
[  440.105081][ T6116] RAX: 0000000000000000 RBX: 00007f270e23445c RCX: 00007f270e19f257
[  440.105090][ T6116] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffe3f534700
[  440.105097][ T6116] RBP: 00007ffe3f534700 R08: 00007ffe3f535700 R09: 00000000ffffffff
[  440.105105][ T6116] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffe3f535790
[  440.105110][ T6116] R13: 00007f270e23445c R14: 000000000006b6ac R15: 00007ffe3f5357d0
[  440.105122][ T6116]  </TASK>
[  440.105179][ T6112] CPU: 1 UID: 0 PID: 6112 Comm: syz-executor Not tainted syzkaller #0 PREEMPT(full) 
[  440.105188][ T6112] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
[  440.105192][ T6112] Call Trace:
[  440.105196][ T6112]  <TASK>
[  440.105199][ T6112]  dump_stack_lvl+0xe8/0x150
[  440.105210][ T6112]  f2fs_stop_checkpoint+0x3f6/0x5d0
[  440.105220][ T6112]  f2fs_write_end_io+0x124b/0x1710
[  440.105236][ T6112]  __submit_merged_bio+0x258/0x6a0
[  440.105245][ T6112]  ? rcu_is_watching+0x15/0xb0
[  440.105256][ T6112]  __submit_merged_write_cond+0x3c9/0x4e0
[  440.105268][ T6112]  ? __pfx___submit_merged_write_cond+0x10/0x10
[  440.105283][ T6112]  f2fs_write_data_pages+0x2a27/0x36f0
[  440.105320][ T6112]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  440.105347][ T6112]  ? __pfx_hlock_conflict+0x10/0x10
[  440.105353][ T6112]  ? __pfx_hlock_conflict+0x10/0x10
[  440.105359][ T6112]  ? __bfs+0x153/0x290
[  440.105371][ T6112]  ? __pfx_hlock_conflict+0x10/0x10
[  440.105391][ T6112]  ? lockdep_unlock+0x5d/0xd0
[  440.105403][ T6112]  ? __lock_acquire+0x13e8/0x2cf0
[  440.105434][ T6112]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  440.105451][ T6112]  do_writepages+0x338/0x560
[  440.105472][ T6112]  ? do_raw_spin_unlock+0x4d/0x210
[  440.105489][ T6112]  filemap_fdatawrite+0x1e9/0x2f0
[  440.105503][ T6112]  ? __pfx_filemap_fdatawrite+0x10/0x10
[  440.105559][ T6112]  ? do_raw_spin_unlock+0x4d/0x210
[  440.105572][ T6112]  f2fs_sync_dirty_inodes+0x30e/0x830
[  440.105588][ T6112]  f2fs_write_checkpoint+0xa3d/0x2710
[  440.105609][ T6112]  ? __pfx_f2fs_write_checkpoint+0x10/0x10
[  440.105638][ T6112]  kill_f2fs_super+0x2dd/0x700
[  440.105651][ T6112]  ? __pfx_kill_f2fs_super+0x10/0x10
[  440.105665][ T6112]  ? call_rcu+0x64b/0x8b0
[  440.105672][ T6112]  ? lockdep_hardirqs_on+0x7a/0x110
[  440.105684][ T6112]  deactivate_locked_super+0xbc/0x110
[  440.105694][ T6112]  cleanup_mnt+0x3d3/0x460
[  440.105703][ T6112]  task_work_run+0x1d9/0x270
[  440.105714][ T6112]  ? __pfx_task_work_run+0x10/0x10
[  440.105727][ T6112]  exit_to_user_mode_loop+0x1fa/0x730
[  440.105735][ T6112]  ? rcu_is_watching+0x15/0xb0
[  440.105745][ T6112]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  440.105753][ T6112]  do_syscall_64+0x353/0x580
[  440.105760][ T6112]  ? trace_irq_disable+0x3b/0x140
[  440.105771][ T6112]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  440.105777][ T6112] RIP: 0033:0x7fe6d639f257
[  440.105784][ T6112] 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
[  440.105791][ T6112] RSP: 002b:00007ffc1f486698 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
[  440.105798][ T6112] RAX: 0000000000000000 RBX: 00007fe6d643445c RCX: 00007fe6d639f257
[  440.105803][ T6112] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffc1f486750
[  440.105807][ T6112] RBP: 00007ffc1f486750 R08: 00007ffc1f487750 R09: 00000000ffffffff
[  440.105811][ T6112] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc1f4877e0
[  440.105816][ T6112] R13: 00007fe6d643445c R14: 000000000006b6a4 R15: 00007ffc1f487820
[  440.105827][ T6112]  </TASK>
[  440.105869][ T6112] F2FS-fs (loop1): Stopped filesystem due to reason: 3
[  440.130668][ T6116] F2FS-fs (loop2): Stopped filesystem due to reason: 3
[  440.400499][T10254] F2FS-fs (loop0): Small segment_count (9 < 1 * 24)
[  440.403432][T10254] F2FS-fs (loop0): Can't find valid F2FS filesystem in 1th superblock
[  440.409891][ T1380] ieee802154 phy0 wpan0: encryption failed: -22
[  440.412411][ T1380] ieee802154 phy1 wpan1: encryption failed: -22
[  440.487234][T10254] F2FS-fs (loop0): f2fs_recover_fsync_data: recovery fsync data, check_only: 0
[  440.500182][T10254] F2FS-fs (loop0): Try to recover 1th superblock, ret: 0
[  440.504470][T10254] F2FS-fs (loop0): Mounted with checkpoint version = 48b305e5
[  440.540411][ T6110] CPU: 1 UID: 0 PID: 6110 Comm: syz-executor Not tainted syzkaller #0 PREEMPT(full) 
[  440.540432][ T6110] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
[  440.540441][ T6110] Call Trace:
[  440.540446][ T6110]  <TASK>
[  440.540460][ T6110]  dump_stack_lvl+0xe8/0x150
[  440.540482][ T6110]  f2fs_stop_checkpoint+0x3f6/0x5d0
[  440.540500][ T6110]  f2fs_write_end_io+0x124b/0x1710
[  440.540572][ T6110]  __submit_merged_bio+0x258/0x6a0
[  440.540592][ T6110]  ? rcu_is_watching+0x15/0xb0
[  440.540609][ T6110]  __submit_merged_write_cond+0x3c9/0x4e0
[  440.540625][ T6110]  ? __pfx___submit_merged_write_cond+0x10/0x10
[  440.540650][ T6110]  f2fs_write_data_pages+0x2a27/0x36f0
[  440.540665][ T6110]  ? __lock_acquire+0x683/0x2cf0
[  440.540698][ T6110]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  440.540735][ T6110]  ? __pfx_hlock_conflict+0x10/0x10
[  440.540746][ T6110]  ? __bfs+0x153/0x290
[  440.540758][ T6110]  ? __pfx_hlock_conflict+0x10/0x10
[  440.540777][ T6110]  ? lockdep_unlock+0x5d/0xd0
[  440.540788][ T6110]  ? __lock_acquire+0x13e8/0x2cf0
[  440.540815][ T6110]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  440.540829][ T6110]  do_writepages+0x338/0x560
[  440.540847][ T6110]  ? do_raw_spin_unlock+0x4d/0x210
[  440.540861][ T6110]  filemap_fdatawrite+0x1e9/0x2f0
[  440.540877][ T6110]  ? __pfx_filemap_fdatawrite+0x10/0x10
[  440.540911][ T6110]  ? do_raw_spin_unlock+0x4d/0x210
[  440.540924][ T6110]  f2fs_sync_dirty_inodes+0x30e/0x830
[  440.540949][ T6110]  f2fs_write_checkpoint+0xa3d/0x2710
[  440.540981][ T6110]  ? __pfx_f2fs_write_checkpoint+0x10/0x10
[  440.541026][ T6110]  kill_f2fs_super+0x2dd/0x700
[  440.541049][ T6110]  ? __pfx_kill_f2fs_super+0x10/0x10
[  440.541070][ T6110]  ? call_rcu+0x64b/0x8b0
[  440.541082][ T6110]  ? lockdep_hardirqs_on+0x7a/0x110
[  440.541103][ T6110]  deactivate_locked_super+0xbc/0x110
[  440.541121][ T6110]  cleanup_mnt+0x3d3/0x460
[  440.541133][ T6110]  task_work_run+0x1d9/0x270
[  440.541152][ T6110]  ? __pfx_task_work_run+0x10/0x10
[  440.541174][ T6110]  exit_to_user_mode_loop+0x1fa/0x730
[  440.541190][ T6110]  ? rcu_is_watching+0x15/0xb0
[  440.541207][ T6110]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  440.541220][ T6110]  do_syscall_64+0x353/0x580
[  440.541234][ T6110]  ? trace_irq_disable+0x3b/0x140
[  440.541252][ T6110]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  440.541264][ T6110] RIP: 0033:0x7f730e59f257
[  440.541277][ T6110] 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
[  440.541288][ T6110] RSP: 002b:00007ffe088e1548 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
[  440.541302][ T6110] RAX: 0000000000000000 RBX: 00007f730e63445c RCX: 00007f730e59f257
[  440.541310][ T6110] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffe088e1600
[  440.541318][ T6110] RBP: 00007ffe088e1600 R08: 00007ffe088e2600 R09: 00000000ffffffff
[  440.541326][ T6110] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffe088e2690
[  440.541333][ T6110] R13: 00007f730e63445c R14: 000000000006b85f R15: 00007ffe088e26d0
[  440.541353][ T6110]  </TASK>
[  440.543426][ T6110] F2FS-fs (loop0): Stopped filesystem due to reason: 3
[  440.722783][T10258] set_capacity_and_notify: 6 callbacks suppressed
[  440.722802][T10258] loop2: detected capacity change from 0 to 40427
[  440.742380][T10258] F2FS-fs (loop2): Small segment_count (9 < 1 * 24)
[  440.744711][T10258] F2FS-fs (loop2): Can't find valid F2FS filesystem in 1th superblock
[  440.851109][T10258] F2FS-fs (loop2): f2fs_recover_fsync_data: recovery fsync data, check_only: 0
[  440.858801][T10258] F2FS-fs (loop2): Try to recover 1th superblock, ret: 0
[  440.861877][T10258] F2FS-fs (loop2): Mounted with checkpoint version = 48b305e5
[  440.886401][ T6116] CPU: 0 UID: 0 PID: 6116 Comm: syz-executor Not tainted syzkaller #0 PREEMPT(full) 
[  440.886426][ T6116] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
[  440.886434][ T6116] Call Trace:
[  440.886440][ T6116]  <TASK>
[  440.886446][ T6116]  dump_stack_lvl+0xe8/0x150
[  440.886470][ T6116]  f2fs_stop_checkpoint+0x3f6/0x5d0
[  440.886491][ T6116]  f2fs_write_end_io+0x124b/0x1710
[  440.886554][ T6116]  __submit_merged_bio+0x258/0x6a0
[  440.886571][ T6116]  ? rcu_is_watching+0x15/0xb0
[  440.886594][ T6116]  __submit_merged_write_cond+0x3c9/0x4e0
[  440.886615][ T6116]  ? __pfx___submit_merged_write_cond+0x10/0x10
[  440.886644][ T6116]  f2fs_write_data_pages+0x2a27/0x36f0
[  440.886681][ T6116]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  440.886724][ T6116]  ? __pfx_hlock_conflict+0x10/0x10
[  440.886736][ T6116]  ? __bfs+0x153/0x290
[  440.886751][ T6116]  ? __pfx_hlock_conflict+0x10/0x10
[  440.886773][ T6116]  ? lockdep_unlock+0x5d/0xd0
[  440.886787][ T6116]  ? __lock_acquire+0x13e8/0x2cf0
[  440.886819][ T6116]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  440.886836][ T6116]  do_writepages+0x338/0x560
[  440.886861][ T6116]  ? do_raw_spin_unlock+0x4d/0x210
[  440.886878][ T6116]  filemap_fdatawrite+0x1e9/0x2f0
[  440.886897][ T6116]  ? __pfx_filemap_fdatawrite+0x10/0x10
[  440.886942][ T6116]  ? do_raw_spin_unlock+0x4d/0x210
[  440.886958][ T6116]  f2fs_sync_dirty_inodes+0x30e/0x830
[  440.886986][ T6116]  f2fs_write_checkpoint+0xa3d/0x2710
[  440.887024][ T6116]  ? __pfx_f2fs_write_checkpoint+0x10/0x10
[  440.887076][ T6116]  kill_f2fs_super+0x2dd/0x700
[  440.887100][ T6116]  ? __pfx_kill_f2fs_super+0x10/0x10
[  440.887124][ T6116]  ? call_rcu+0x64b/0x8b0
[  440.887136][ T6116]  ? lockdep_hardirqs_on+0x7a/0x110
[  440.887160][ T6116]  deactivate_locked_super+0xbc/0x110
[  440.887179][ T6116]  cleanup_mnt+0x3d3/0x460
[  440.887196][ T6116]  task_work_run+0x1d9/0x270
[  440.887217][ T6116]  ? __pfx_task_work_run+0x10/0x10
[  440.887241][ T6116]  exit_to_user_mode_loop+0x1fa/0x730
[  440.887257][ T6116]  ? rcu_is_watching+0x15/0xb0
[  440.887274][ T6116]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  440.887288][ T6116]  do_syscall_64+0x353/0x580
[  440.887302][ T6116]  ? trace_irq_disable+0x3b/0x140
[  440.887328][ T6116]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  440.887340][ T6116] RIP: 0033:0x7f270e19f257
[  440.887353][ T6116] 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
[  440.887363][ T6116] RSP: 002b:00007ffe3f534648 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
[  440.887378][ T6116] RAX: 0000000000000000 RBX: 00007f270e23445c RCX: 00007f270e19f257
[  440.887387][ T6116] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffe3f534700
[  440.887395][ T6116] RBP: 00007ffe3f534700 R08: 00007ffe3f535700 R09: 00000000ffffffff
[  440.887403][ T6116] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffe3f535790
[  440.887411][ T6116] R13: 00007f270e23445c R14: 000000000006b9b6 R15: 00007ffe3f5357d0
[  440.887431][ T6116]  </TASK>
[  440.887437][ T6116] F2FS-fs (loop2): Stopped filesystem due to reason: 3
[  440.919033][T10260] loop1: detected capacity change from 0 to 40427
[  441.010271][T10260] F2FS-fs (loop1): Small segment_count (9 < 1 * 24)
[  441.012992][T10260] F2FS-fs (loop1): Can't find valid F2FS filesystem in 1th superblock
[  441.044848][T10260] F2FS-fs (loop1): f2fs_recover_fsync_data: recovery fsync data, check_only: 0
[  441.060649][T10260] F2FS-fs (loop1): Try to recover 1th superblock, ret: 0
[  441.062993][T10260] F2FS-fs (loop1): Mounted with checkpoint version = 48b305e5
[  441.107138][ T6112] CPU: 0 UID: 0 PID: 6112 Comm: syz-executor Not tainted syzkaller #0 PREEMPT(full) 
[  441.107164][ T6112] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
[  441.107172][ T6112] Call Trace:
[  441.107189][ T6112]  <TASK>
[  441.107196][ T6112]  dump_stack_lvl+0xe8/0x150
[  441.107222][ T6112]  f2fs_stop_checkpoint+0x3f6/0x5d0
[  441.107243][ T6112]  f2fs_write_end_io+0x124b/0x1710
[  441.107274][ T6112]  __submit_merged_bio+0x258/0x6a0
[  441.107290][ T6112]  ? rcu_is_watching+0x15/0xb0
[  441.107319][ T6112]  __submit_merged_write_cond+0x3c9/0x4e0
[  441.107340][ T6112]  ? __pfx___submit_merged_write_cond+0x10/0x10
[  441.107369][ T6112]  f2fs_write_data_pages+0x2a27/0x36f0
[  441.107387][ T6112]  ? __lock_acquire+0x683/0x2cf0
[  441.107424][ T6112]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  441.107467][ T6112]  ? __pfx_hlock_conflict+0x10/0x10
[  441.107480][ T6112]  ? __bfs+0x153/0x290
[  441.107494][ T6112]  ? __pfx_hlock_conflict+0x10/0x10
[  441.107543][ T6112]  ? lockdep_unlock+0x5d/0xd0
[  441.107559][ T6112]  ? __lock_acquire+0x13e8/0x2cf0
[  441.107591][ T6112]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  441.107608][ T6112]  do_writepages+0x338/0x560
[  441.107632][ T6112]  ? do_raw_spin_unlock+0x4d/0x210
[  441.107649][ T6112]  filemap_fdatawrite+0x1e9/0x2f0
[  441.107669][ T6112]  ? __pfx_filemap_fdatawrite+0x10/0x10
[  441.107712][ T6112]  ? do_raw_spin_unlock+0x4d/0x210
[  441.107729][ T6112]  f2fs_sync_dirty_inodes+0x30e/0x830
[  441.107757][ T6112]  f2fs_write_checkpoint+0xa3d/0x2710
[  441.107793][ T6112]  ? __pfx_f2fs_write_checkpoint+0x10/0x10
[  441.107843][ T6112]  kill_f2fs_super+0x2dd/0x700
[  441.107887][ T6112]  ? __pfx_kill_f2fs_super+0x10/0x10
[  441.107911][ T6112]  ? call_rcu+0x64b/0x8b0
[  441.107923][ T6112]  ? lockdep_hardirqs_on+0x7a/0x110
[  441.107946][ T6112]  deactivate_locked_super+0xbc/0x110
[  441.107968][ T6112]  cleanup_mnt+0x3d3/0x460
[  441.107984][ T6112]  task_work_run+0x1d9/0x270
[  441.108006][ T6112]  ? __pfx_task_work_run+0x10/0x10
[  441.108029][ T6112]  exit_to_user_mode_loop+0x1fa/0x730
[  441.108047][ T6112]  ? rcu_is_watching+0x15/0xb0
[  441.108065][ T6112]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  441.108077][ T6112]  do_syscall_64+0x353/0x580
[  441.108093][ T6112]  ? trace_irq_disable+0x3b/0x140
[  441.108111][ T6112]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  441.108124][ T6112] RIP: 0033:0x7fe6d639f257
[  441.108137][ T6112] 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
[  441.108149][ T6112] RSP: 002b:00007ffc1f486698 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
[  441.108164][ T6112] RAX: 0000000000000000 RBX: 00007fe6d643445c RCX: 00007fe6d639f257
[  441.108172][ T6112] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffc1f486750
[  441.108179][ T6112] RBP: 00007ffc1f486750 R08: 00007ffc1f487750 R09: 00000000ffffffff
[  441.108188][ T6112] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc1f4877e0
[  441.108195][ T6112] R13: 00007fe6d643445c R14: 000000000006ba90 R15: 00007ffc1f487820
[  441.108216][ T6112]  </TASK>
[  441.398366][ T6112] F2FS-fs (loop1): Stopped filesystem due to reason: 3
[  441.421760][T10264] loop0: detected capacity change from 0 to 40427
[  441.429574][T10264] F2FS-fs (loop0): Small segment_count (9 < 1 * 24)
[  441.433000][T10264] F2FS-fs (loop0): Can't find valid F2FS filesystem in 1th superblock
[  441.523034][T10264] F2FS-fs (loop0): f2fs_recover_fsync_data: recovery fsync data, check_only: 0
[  441.535300][T10264] F2FS-fs (loop0): Try to recover 1th superblock, ret: 0
[  441.539203][T10264] F2FS-fs (loop0): Mounted with checkpoint version = 48b305e5
[  441.556995][T10268] loop2: detected capacity change from 0 to 40427
[  441.571027][T10268] F2FS-fs (loop2): Small segment_count (9 < 1 * 24)
[  441.587694][ T6110] CPU: 0 UID: 0 PID: 6110 Comm: syz-executor Not tainted syzkaller #0 PREEMPT(full) 
[  441.587718][ T6110] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
[  441.587727][ T6110] Call Trace:
[  441.587734][ T6110]  <TASK>
[  441.587740][ T6110]  dump_stack_lvl+0xe8/0x150
[  441.587765][ T6110]  f2fs_stop_checkpoint+0x3f6/0x5d0
[  441.587787][ T6110]  f2fs_write_end_io+0x124b/0x1710
[  441.587817][ T6110]  __submit_merged_bio+0x258/0x6a0
[  441.587833][ T6110]  ? rcu_is_watching+0x15/0xb0
[  441.587855][ T6110]  __submit_merged_write_cond+0x3c9/0x4e0
[  441.587876][ T6110]  ? __pfx___submit_merged_write_cond+0x10/0x10
[  441.587906][ T6110]  f2fs_write_data_pages+0x2a27/0x36f0
[  441.587921][ T6110]  ? __lock_acquire+0x683/0x2cf0
[  441.587960][ T6110]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  441.588002][ T6110]  ? __pfx_hlock_conflict+0x10/0x10
[  441.588013][ T6110]  ? __bfs+0x153/0x290
[  441.588028][ T6110]  ? __pfx_hlock_conflict+0x10/0x10
[  441.588050][ T6110]  ? lockdep_unlock+0x5d/0xd0
[  441.588063][ T6110]  ? __lock_acquire+0x13e8/0x2cf0
[  441.588094][ T6110]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  441.588111][ T6110]  do_writepages+0x338/0x560
[  441.588135][ T6110]  ? do_raw_spin_unlock+0x4d/0x210
[  441.588174][ T6110]  filemap_fdatawrite+0x1e9/0x2f0
[  441.588193][ T6110]  ? __pfx_filemap_fdatawrite+0x10/0x10
[  441.588236][ T6110]  ? do_raw_spin_unlock+0x4d/0x210
[  441.588251][ T6110]  f2fs_sync_dirty_inodes+0x30e/0x830
[  441.588279][ T6110]  f2fs_write_checkpoint+0xa3d/0x2710
[  441.588321][ T6110]  ? __pfx_f2fs_write_checkpoint+0x10/0x10
[  441.588370][ T6110]  kill_f2fs_super+0x2dd/0x700
[  441.588394][ T6110]  ? __pfx_kill_f2fs_super+0x10/0x10
[  441.588418][ T6110]  ? call_rcu+0x64b/0x8b0
[  441.588431][ T6110]  ? lockdep_hardirqs_on+0x7a/0x110
[  441.588454][ T6110]  deactivate_locked_super+0xbc/0x110
[  441.588474][ T6110]  cleanup_mnt+0x3d3/0x460
[  441.588491][ T6110]  task_work_run+0x1d9/0x270
[  441.588539][ T6110]  ? __pfx_task_work_run+0x10/0x10
[  441.588563][ T6110]  exit_to_user_mode_loop+0x1fa/0x730
[  441.588580][ T6110]  ? rcu_is_watching+0x15/0xb0
[  441.588597][ T6110]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  441.588610][ T6110]  do_syscall_64+0x353/0x580
[  441.588624][ T6110]  ? trace_irq_disable+0x3b/0x140
[  441.588644][ T6110]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  441.588657][ T6110] RIP: 0033:0x7f730e59f257
[  441.588671][ T6110] 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
[  441.588681][ T6110] RSP: 002b:00007ffe088e1548 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
[  441.588698][ T6110] RAX: 0000000000000000 RBX: 00007f730e63445c RCX: 00007f730e59f257
[  441.588705][ T6110] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffe088e1600
[  441.588714][ T6110] RBP: 00007ffe088e1600 R08: 00007ffe088e2600 R09: 00000000ffffffff
[  441.588722][ T6110] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffe088e2690
[  441.588731][ T6110] R13: 00007f730e63445c R14: 000000000006bc70 R15: 00007ffe088e26d0
[  441.588750][ T6110]  </TASK>
[  441.639012][T10268] F2FS-fs (loop2): Can't find valid F2FS filesystem in 1th superblock
[  441.677204][ T6110] F2FS-fs (loop0): Stopped filesystem due to reason: 3
[  441.791046][T10268] F2FS-fs (loop2): f2fs_recover_fsync_data: recovery fsync data, check_only: 0
[  441.800041][T10268] F2FS-fs (loop2): Try to recover 1th superblock, ret: 0
[  441.802941][T10268] F2FS-fs (loop2): Mounted with checkpoint version = 48b305e5
[  441.842822][ T6116] CPU: 1 UID: 0 PID: 6116 Comm: syz-executor Not tainted syzkaller #0 PREEMPT(full) 
[  441.842845][ T6116] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
[  441.842853][ T6116] Call Trace:
[  441.842861][ T6116]  <TASK>
[  441.842867][ T6116]  dump_stack_lvl+0xe8/0x150
[  441.842892][ T6116]  f2fs_stop_checkpoint+0x3f6/0x5d0
[  441.842912][ T6116]  f2fs_write_end_io+0x124b/0x1710
[  441.842944][ T6116]  __submit_merged_bio+0x258/0x6a0
[  441.842960][ T6116]  ? rcu_is_watching+0x15/0xb0
[  441.843002][ T6116]  __submit_merged_write_cond+0x3c9/0x4e0
[  441.843024][ T6116]  ? __pfx___submit_merged_write_cond+0x10/0x10
[  441.843056][ T6116]  f2fs_write_data_pages+0x2a27/0x36f0
[  441.843097][ T6116]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  441.843143][ T6116]  ? __pfx_hlock_conflict+0x10/0x10
[  441.843156][ T6116]  ? __bfs+0x153/0x290
[  441.843170][ T6116]  ? __pfx_hlock_conflict+0x10/0x10
[  441.843194][ T6116]  ? lockdep_unlock+0x5d/0xd0
[  441.843208][ T6116]  ? __lock_acquire+0x13e8/0x2cf0
[  441.843249][ T6116]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  441.843268][ T6116]  do_writepages+0x338/0x560
[  441.843292][ T6116]  ? do_raw_spin_unlock+0x4d/0x210
[  441.843309][ T6116]  filemap_fdatawrite+0x1e9/0x2f0
[  441.843328][ T6116]  ? __pfx_filemap_fdatawrite+0x10/0x10
[  441.843376][ T6116]  ? do_raw_spin_unlock+0x4d/0x210
[  441.843393][ T6116]  f2fs_sync_dirty_inodes+0x30e/0x830
[  441.843422][ T6116]  f2fs_write_checkpoint+0xa3d/0x2710
[  441.843461][ T6116]  ? __pfx_f2fs_write_checkpoint+0x10/0x10
[  441.843541][ T6116]  kill_f2fs_super+0x2dd/0x700
[  441.843568][ T6116]  ? __pfx_kill_f2fs_super+0x10/0x10
[  441.843593][ T6116]  ? call_rcu+0x64b/0x8b0
[  441.843604][ T6116]  ? lockdep_hardirqs_on+0x7a/0x110
[  441.843628][ T6116]  deactivate_locked_super+0xbc/0x110
[  441.843648][ T6116]  cleanup_mnt+0x3d3/0x460
[  441.843665][ T6116]  task_work_run+0x1d9/0x270
[  441.843686][ T6116]  ? __pfx_task_work_run+0x10/0x10
[  441.843709][ T6116]  exit_to_user_mode_loop+0x1fa/0x730
[  441.843724][ T6116]  ? rcu_is_watching+0x15/0xb0
[  441.843742][ T6116]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  441.843757][ T6116]  do_syscall_64+0x353/0x580
[  441.843769][ T6116]  ? trace_irq_disable+0x3b/0x140
[  441.843788][ T6116]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  441.843801][ T6116] RIP: 0033:0x7f270e19f257
[  441.843814][ T6116] 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
[  441.843824][ T6116] RSP: 002b:00007ffe3f534648 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
[  441.843840][ T6116] RAX: 0000000000000000 RBX: 00007f270e23445c RCX: 00007f270e19f257
[  441.843849][ T6116] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffe3f534700
[  441.843856][ T6116] RBP: 00007ffe3f534700 R08: 00007ffe3f535700 R09: 00000000ffffffff
[  441.843865][ T6116] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffe3f535790
[  441.843872][ T6116] R13: 00007f270e23445c R14: 000000000006bd66 R15: 00007ffe3f5357d0
[  441.843893][ T6116]  </TASK>
[  441.909309][ T6116] F2FS-fs (loop2): Stopped filesystem due to reason: 3
[  442.114490][T10274] loop1: detected capacity change from 0 to 40427
[  442.127167][T10274] F2FS-fs (loop1): Small segment_count (9 < 1 * 24)
[  442.131462][T10274] F2FS-fs (loop1): Can't find valid F2FS filesystem in 1th superblock
[  442.177889][T10274] F2FS-fs (loop1): f2fs_recover_fsync_data: recovery fsync data, check_only: 0
[  442.186092][T10274] F2FS-fs (loop1): Try to recover 1th superblock, ret: 0
[  442.188653][T10274] F2FS-fs (loop1): Mounted with checkpoint version = 48b305e5
[  442.204017][ T6112] CPU: 1 UID: 0 PID: 6112 Comm: syz-executor Not tainted syzkaller #0 PREEMPT(full) 
[  442.204031][ T6112] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
[  442.204036][ T6112] Call Trace:
[  442.204040][ T6112]  <TASK>
[  442.204044][ T6112]  dump_stack_lvl+0xe8/0x150
[  442.204059][ T6112]  f2fs_stop_checkpoint+0x3f6/0x5d0
[  442.204070][ T6112]  f2fs_write_end_io+0x124b/0x1710
[  442.204087][ T6112]  __submit_merged_bio+0x258/0x6a0
[  442.204095][ T6112]  ? rcu_is_watching+0x15/0xb0
[  442.204107][ T6112]  __submit_merged_write_cond+0x3c9/0x4e0
[  442.204119][ T6112]  ? __pfx___submit_merged_write_cond+0x10/0x10
[  442.204135][ T6112]  f2fs_write_data_pages+0x2a27/0x36f0
[  442.204145][ T6112]  ? __lock_acquire+0x683/0x2cf0
[  442.204165][ T6112]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  442.204206][ T6112]  ? __pfx_hlock_conflict+0x10/0x10
[  442.204220][ T6112]  ? __bfs+0x153/0x290
[  442.204228][ T6112]  ? __pfx_hlock_conflict+0x10/0x10
[  442.204240][ T6112]  ? lockdep_unlock+0x5d/0xd0
[  442.204248][ T6112]  ? __lock_acquire+0x13e8/0x2cf0
[  442.204266][ T6112]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  442.204276][ T6112]  do_writepages+0x338/0x560
[  442.204289][ T6112]  ? do_raw_spin_unlock+0x4d/0x210
[  442.204299][ T6112]  filemap_fdatawrite+0x1e9/0x2f0
[  442.204310][ T6112]  ? __pfx_filemap_fdatawrite+0x10/0x10
[  442.204334][ T6112]  ? do_raw_spin_unlock+0x4d/0x210
[  442.204343][ T6112]  f2fs_sync_dirty_inodes+0x30e/0x830
[  442.204358][ T6112]  f2fs_write_checkpoint+0xa3d/0x2710
[  442.204379][ T6112]  ? __pfx_f2fs_write_checkpoint+0x10/0x10
[  442.204407][ T6112]  kill_f2fs_super+0x2dd/0x700
[  442.204420][ T6112]  ? __pfx_kill_f2fs_super+0x10/0x10
[  442.204434][ T6112]  ? call_rcu+0x64b/0x8b0
[  442.204440][ T6112]  ? lockdep_hardirqs_on+0x7a/0x110
[  442.204453][ T6112]  deactivate_locked_super+0xbc/0x110
[  442.204464][ T6112]  cleanup_mnt+0x3d3/0x460
[  442.204474][ T6112]  task_work_run+0x1d9/0x270
[  442.204485][ T6112]  ? __pfx_task_work_run+0x10/0x10
[  442.204529][ T6112]  exit_to_user_mode_loop+0x1fa/0x730
[  442.204544][ T6112]  ? rcu_is_watching+0x15/0xb0
[  442.204554][ T6112]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  442.204562][ T6112]  do_syscall_64+0x353/0x580
[  442.204570][ T6112]  ? trace_irq_disable+0x3b/0x140
[  442.204581][ T6112]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  442.204587][ T6112] RIP: 0033:0x7fe6d639f257
[  442.204595][ T6112] 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
[  442.204601][ T6112] RSP: 002b:00007ffc1f486698 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
[  442.204610][ T6112] RAX: 0000000000000000 RBX: 00007fe6d643445c RCX: 00007fe6d639f257
[  442.204615][ T6112] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffc1f486750
[  442.204619][ T6112] RBP: 00007ffc1f486750 R08: 00007ffc1f487750 R09: 00000000ffffffff
[  442.204624][ T6112] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc1f4877e0
[  442.204628][ T6112] R13: 00007fe6d643445c R14: 000000000006bedb R15: 00007ffc1f487820
[  442.204639][ T6112]  </TASK>
[  442.205602][ T6112] F2FS-fs (loop1): Stopped filesystem due to reason: 3
[  442.511920][T10276] loop0: detected capacity change from 0 to 40427
[  442.520851][T10276] F2FS-fs (loop0): Small segment_count (9 < 1 * 24)
[  442.526425][T10276] F2FS-fs (loop0): Can't find valid F2FS filesystem in 1th superblock
[  442.582153][T10280] loop2: detected capacity change from 0 to 40427
[  442.585201][T10280] F2FS-fs (loop2): Small segment_count (9 < 1 * 24)
[  442.587605][T10280] F2FS-fs (loop2): Can't find valid F2FS filesystem in 1th superblock
[  442.625757][T10280] F2FS-fs (loop2): f2fs_recover_fsync_data: recovery fsync data, check_only: 0
[  442.632617][T10280] F2FS-fs (loop2): Try to recover 1th superblock, ret: 0
[  442.638521][T10280] F2FS-fs (loop2): Mounted with checkpoint version = 48b305e5
[  442.657918][T10276] F2FS-fs (loop0): f2fs_recover_fsync_data: recovery fsync data, check_only: 0
[  442.666090][T10276] F2FS-fs (loop0): Try to recover 1th superblock, ret: 0
[  442.671756][ T6116] CPU: 0 UID: 0 PID: 6116 Comm: syz-executor Not tainted syzkaller #0 PREEMPT(full) 
[  442.671776][ T6116] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
[  442.671784][ T6116] Call Trace:
[  442.671790][ T6116]  <TASK>
[  442.671795][ T6116]  dump_stack_lvl+0xe8/0x150
[  442.671819][ T6116]  f2fs_stop_checkpoint+0x3f6/0x5d0
[  442.671839][ T6116]  f2fs_write_end_io+0x124b/0x1710
[  442.671870][ T6116]  __submit_merged_bio+0x258/0x6a0
[  442.671910][ T6116]  ? rcu_is_watching+0x15/0xb0
[  442.671932][ T6116]  __submit_merged_write_cond+0x3c9/0x4e0
[  442.671951][ T6116]  ? __pfx___submit_merged_write_cond+0x10/0x10
[  442.671981][ T6116]  f2fs_write_data_pages+0x2a27/0x36f0
[  442.672019][ T6116]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  442.672063][ T6116]  ? __pfx_hlock_conflict+0x10/0x10
[  442.672075][ T6116]  ? __bfs+0x153/0x290
[  442.672088][ T6116]  ? __pfx_hlock_conflict+0x10/0x10
[  442.672109][ T6116]  ? lockdep_unlock+0x5d/0xd0
[  442.672121][ T6116]  ? __lock_acquire+0x13e8/0x2cf0
[  442.672151][ T6116]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  442.672167][ T6116]  do_writepages+0x338/0x560
[  442.672188][ T6116]  ? do_raw_spin_unlock+0x4d/0x210
[  442.672202][ T6116]  filemap_fdatawrite+0x1e9/0x2f0
[  442.672219][ T6116]  ? __pfx_filemap_fdatawrite+0x10/0x10
[  442.672257][ T6116]  ? do_raw_spin_unlock+0x4d/0x210
[  442.672272][ T6116]  f2fs_sync_dirty_inodes+0x30e/0x830
[  442.672306][ T6116]  f2fs_write_checkpoint+0xa3d/0x2710
[  442.672341][ T6116]  ? __pfx_f2fs_write_checkpoint+0x10/0x10
[  442.672387][ T6116]  kill_f2fs_super+0x2dd/0x700
[  442.672410][ T6116]  ? __pfx_kill_f2fs_super+0x10/0x10
[  442.672432][ T6116]  ? call_rcu+0x64b/0x8b0
[  442.672443][ T6116]  ? lockdep_hardirqs_on+0x7a/0x110
[  442.672466][ T6116]  deactivate_locked_super+0xbc/0x110
[  442.672486][ T6116]  cleanup_mnt+0x3d3/0x460
[  442.672534][ T6116]  task_work_run+0x1d9/0x270
[  442.672555][ T6116]  ? __pfx_task_work_run+0x10/0x10
[  442.672578][ T6116]  exit_to_user_mode_loop+0x1fa/0x730
[  442.672594][ T6116]  ? rcu_is_watching+0x15/0xb0
[  442.672612][ T6116]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  442.672625][ T6116]  do_syscall_64+0x353/0x580
[  442.672639][ T6116]  ? trace_irq_disable+0x3b/0x140
[  442.672658][ T6116]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  442.672670][ T6116] RIP: 0033:0x7f270e19f257
[  442.672683][ T6116] 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
[  442.672694][ T6116] RSP: 002b:00007ffe3f534648 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
[  442.672708][ T6116] RAX: 0000000000000000 RBX: 00007f270e23445c RCX: 00007f270e19f257
[  442.672716][ T6116] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffe3f534700
[  442.672723][ T6116] RBP: 00007ffe3f534700 R08: 00007ffe3f535700 R09: 00000000ffffffff
[  442.672731][ T6116] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffe3f535790
[  442.672738][ T6116] R13: 00007f270e23445c R14: 000000000006c0b2 R15: 00007ffe3f5357d0
[  442.672758][ T6116]  </TASK>
[  442.674072][ T6116] F2FS-fs (loop2): Stopped filesystem due to reason: 3
[  442.739280][T10276] F2FS-fs (loop0): Mounted with checkpoint version = 48b305e5
[  442.811065][   T33] kauditd_printk_skb: 20 callbacks suppressed
[  442.811077][   T33] audit: type=1800 audit(1785886369.115:1968): pid=10276 uid=0 auid=4294967295 ses=4294967295 subj=unconfined op=collect_data cause=failed(directio) comm="syz.0.999" name="file1" dev="loop0" ino=10 res=0 errno=0
[  442.817625][T10282] loop1: detected capacity change from 0 to 40427
[  442.822246][   T33] audit: type=1800 audit(1785886369.135:1969): pid=10276 uid=0 auid=4294967295 ses=4294967295 subj=unconfined op=collect_data cause=failed(directio) comm="syz.0.999" name="file1" dev="loop0" ino=10 res=0 errno=0
[  442.840404][T10282] F2FS-fs (loop1): Small segment_count (9 < 1 * 24)
[  442.850295][ T6110] bio_check_eod: 37 callbacks suppressed
[  442.850312][ T6110] syz-executor: attempt to access beyond end of device
[  442.850312][ T6110] loop0: rw=2049, sector=45096, nr_sectors = 8 limit=40427
[  442.864528][T10282] F2FS-fs (loop1): Can't find valid F2FS filesystem in 1th superblock
[  442.869323][ T6110] CPU: 0 UID: 0 PID: 6110 Comm: syz-executor Not tainted syzkaller #0 PREEMPT(full) 
[  442.869341][ T6110] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
[  442.869350][ T6110] Call Trace:
[  442.869356][ T6110]  <TASK>
[  442.869361][ T6110]  dump_stack_lvl+0xe8/0x150
[  442.869386][ T6110]  f2fs_stop_checkpoint+0x3f6/0x5d0
[  442.869408][ T6110]  f2fs_write_end_io+0x124b/0x1710
[  442.869439][ T6110]  __submit_merged_bio+0x258/0x6a0
[  442.869455][ T6110]  ? rcu_is_watching+0x15/0xb0
[  442.869478][ T6110]  __submit_merged_write_cond+0x3c9/0x4e0
[  442.869524][ T6110]  ? __pfx___submit_merged_write_cond+0x10/0x10
[  442.869552][ T6110]  f2fs_write_data_pages+0x2a27/0x36f0
[  442.869569][ T6110]  ? __lock_acquire+0x683/0x2cf0
[  442.869606][ T6110]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  442.869650][ T6110]  ? __pfx_hlock_conflict+0x10/0x10
[  442.869662][ T6110]  ? __bfs+0x153/0x290
[  442.869675][ T6110]  ? __pfx_hlock_conflict+0x10/0x10
[  442.869698][ T6110]  ? lockdep_unlock+0x5d/0xd0
[  442.869712][ T6110]  ? __lock_acquire+0x13e8/0x2cf0
[  442.869743][ T6110]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  442.869760][ T6110]  do_writepages+0x338/0x560
[  442.869785][ T6110]  ? do_raw_spin_unlock+0x4d/0x210
[  442.869801][ T6110]  filemap_fdatawrite+0x1e9/0x2f0
[  442.869821][ T6110]  ? __pfx_filemap_fdatawrite+0x10/0x10
[  442.869863][ T6110]  ? do_raw_spin_unlock+0x4d/0x210
[  442.869881][ T6110]  f2fs_sync_dirty_inodes+0x30e/0x830
[  442.869909][ T6110]  f2fs_write_checkpoint+0xa3d/0x2710
[  442.869945][ T6110]  ? __pfx_f2fs_write_checkpoint+0x10/0x10
[  442.869995][ T6110]  kill_f2fs_super+0x2dd/0x700
[  442.870017][ T6110]  ? __pfx_kill_f2fs_super+0x10/0x10
[  442.870042][ T6110]  ? call_rcu+0x64b/0x8b0
[  442.870054][ T6110]  ? lockdep_hardirqs_on+0x7a/0x110
[  442.870077][ T6110]  deactivate_locked_super+0xbc/0x110
[  442.870097][ T6110]  cleanup_mnt+0x3d3/0x460
[  442.870114][ T6110]  task_work_run+0x1d9/0x270
[  442.870133][ T6110]  ? __pfx_task_work_run+0x10/0x10
[  442.870156][ T6110]  exit_to_user_mode_loop+0x1fa/0x730
[  442.870172][ T6110]  ? rcu_is_watching+0x15/0xb0
[  442.870191][ T6110]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  442.870204][ T6110]  do_syscall_64+0x353/0x580
[  442.870218][ T6110]  ? trace_irq_disable+0x3b/0x140
[  442.870238][ T6110]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  442.870249][ T6110] RIP: 0033:0x7f730e59f257
[  442.870264][ T6110] 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
[  442.870276][ T6110] RSP: 002b:00007ffe088e1548 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
[  442.870298][ T6110] RAX: 0000000000000000 RBX: 00007f730e63445c RCX: 00007f730e59f257
[  442.870305][ T6110] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffe088e1600
[  442.870314][ T6110] RBP: 00007ffe088e1600 R08: 00007ffe088e2600 R09: 00000000ffffffff
[  442.870321][ T6110] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffe088e2690
[  442.870328][ T6110] R13: 00007f730e63445c R14: 000000000006c166 R15: 00007ffe088e26d0
[  442.870352][ T6110]  </TASK>
[  442.870358][ T6110] F2FS-fs (loop0): Stopped filesystem due to reason: 3
[  442.969589][T10282] F2FS-fs (loop1): f2fs_recover_fsync_data: recovery fsync data, check_only: 0
[  443.031222][T10282] F2FS-fs (loop1): Try to recover 1th superblock, ret: 0
[  443.053707][T10282] F2FS-fs (loop1): Mounted with checkpoint version = 48b305e5
[  443.063958][   T33] audit: type=1800 audit(1785886369.365:1970): pid=10282 uid=0 auid=4294967295 ses=4294967295 subj=unconfined op=collect_data cause=failed(directio) comm="syz.1.1001" name="file1" dev="loop1" ino=10 res=0 errno=0
[  443.093319][T10282] syz.1.1001: attempt to access beyond end of device
[  443.093319][T10282] loop1: rw=2049, sector=53248, nr_sectors = 976 limit=40427
[  443.100518][   T33] audit: type=1800 audit(1785886369.385:1971): pid=10282 uid=0 auid=4294967295 ses=4294967295 subj=unconfined op=collect_data cause=failed(directio) comm="syz.1.1001" name="file1" dev="loop1" ino=10 res=0 errno=0
[  443.114020][T10282] syz.1.1001: attempt to access beyond end of device
[  443.114020][T10282] loop1: rw=8423425, sector=54224, nr_sectors = 8 limit=40427
[  443.142852][ T6112] syz-executor: attempt to access beyond end of device
[  443.142852][ T6112] loop1: rw=2049, sector=45096, nr_sectors = 8 limit=40427
[  443.163080][ T6112] CPU: 1 UID: 0 PID: 6112 Comm: syz-executor Not tainted syzkaller #0 PREEMPT(full) 
[  443.163101][ T6112] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
[  443.163109][ T6112] Call Trace:
[  443.163116][ T6112]  <TASK>
[  443.163122][ T6112]  dump_stack_lvl+0xe8/0x150
[  443.163144][ T6112]  f2fs_stop_checkpoint+0x3f6/0x5d0
[  443.163164][ T6112]  f2fs_write_end_io+0x124b/0x1710
[  443.163197][ T6112]  __submit_merged_bio+0x258/0x6a0
[  443.163211][ T6112]  ? rcu_is_watching+0x15/0xb0
[  443.163233][ T6112]  __submit_merged_write_cond+0x3c9/0x4e0
[  443.163254][ T6112]  ? __pfx___submit_merged_write_cond+0x10/0x10
[  443.163286][ T6112]  f2fs_write_data_pages+0x2a27/0x36f0
[  443.163325][ T6112]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  443.163369][ T6112]  ? __pfx_hlock_conflict+0x10/0x10
[  443.163382][ T6112]  ? __bfs+0x153/0x290
[  443.163395][ T6112]  ? __pfx_hlock_conflict+0x10/0x10
[  443.163417][ T6112]  ? lockdep_unlock+0x5d/0xd0
[  443.163429][ T6112]  ? __lock_acquire+0x13e8/0x2cf0
[  443.163462][ T6112]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  443.163478][ T6112]  do_writepages+0x338/0x560
[  443.163532][ T6112]  ? do_raw_spin_unlock+0x4d/0x210
[  443.163547][ T6112]  filemap_fdatawrite+0x1e9/0x2f0
[  443.163564][ T6112]  ? __pfx_filemap_fdatawrite+0x10/0x10
[  443.163604][ T6112]  ? do_raw_spin_unlock+0x4d/0x210
[  443.163617][ T6112]  f2fs_sync_dirty_inodes+0x30e/0x830
[  443.163640][ T6112]  f2fs_write_checkpoint+0xa3d/0x2710
[  443.163678][ T6112]  ? __pfx_f2fs_write_checkpoint+0x10/0x10
[  443.163730][ T6112]  kill_f2fs_super+0x2dd/0x700
[  443.163753][ T6112]  ? __pfx_kill_f2fs_super+0x10/0x10
[  443.163777][ T6112]  ? call_rcu+0x64b/0x8b0
[  443.163788][ T6112]  ? lockdep_hardirqs_on+0x7a/0x110
[  443.163809][ T6112]  deactivate_locked_super+0xbc/0x110
[  443.163826][ T6112]  cleanup_mnt+0x3d3/0x460
[  443.163841][ T6112]  task_work_run+0x1d9/0x270
[  443.163860][ T6112]  ? __pfx_task_work_run+0x10/0x10
[  443.163885][ T6112]  exit_to_user_mode_loop+0x1fa/0x730
[  443.163900][ T6112]  ? rcu_is_watching+0x15/0xb0
[  443.163917][ T6112]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  443.163930][ T6112]  do_syscall_64+0x353/0x580
[  443.163945][ T6112]  ? trace_irq_disable+0x3b/0x140
[  443.163964][ T6112]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  443.163976][ T6112] RIP: 0033:0x7fe6d639f257
[  443.163987][ T6112] 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
[  443.163997][ T6112] RSP: 002b:00007ffc1f486698 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
[  443.164012][ T6112] RAX: 0000000000000000 RBX: 00007fe6d643445c RCX: 00007fe6d639f257
[  443.164019][ T6112] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffc1f486750
[  443.164028][ T6112] RBP: 00007ffc1f486750 R08: 00007ffc1f487750 R09: 00000000ffffffff
[  443.164035][ T6112] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc1f4877e0
[  443.164044][ T6112] R13: 00007fe6d643445c R14: 000000000006c27c R15: 00007ffc1f487820
[  443.164081][ T6112]  </TASK>
[  443.166402][ T6112] F2FS-fs (loop1): Stopped filesystem due to reason: 3
[  443.514247][T10290] loop2: detected capacity change from 0 to 40427
[  443.520030][T10290] F2FS-fs (loop2): Small segment_count (9 < 1 * 24)
[  443.528289][T10290] F2FS-fs (loop2): Can't find valid F2FS filesystem in 1th superblock
[  443.573797][T10292] loop0: detected capacity change from 0 to 40427
[  443.581171][T10292] F2FS-fs (loop0): Small segment_count (9 < 1 * 24)
[  443.586626][T10290] F2FS-fs (loop2): f2fs_recover_fsync_data: recovery fsync data, check_only: 0
[  443.588086][T10292] F2FS-fs (loop0): Can't find valid F2FS filesystem in 1th superblock
[  443.600656][T10290] F2FS-fs (loop2): Try to recover 1th superblock, ret: 0
[  443.603212][T10290] F2FS-fs (loop2): Mounted with checkpoint version = 48b305e5
[  443.607297][   T33] audit: type=1800 audit(1785886369.905:1972): pid=10290 uid=0 auid=4294967295 ses=4294967295 subj=unconfined op=collect_data cause=failed(directio) comm="syz.2.1002" name="file1" dev="loop2" ino=10 res=0 errno=0
[  443.620001][T10290] syz.2.1002: attempt to access beyond end of device
[  443.620001][T10290] loop2: rw=2049, sector=53248, nr_sectors = 976 limit=40427
[  443.628330][   T33] audit: type=1800 audit(1785886369.925:1973): pid=10290 uid=0 auid=4294967295 ses=4294967295 subj=unconfined op=collect_data cause=failed(directio) comm="syz.2.1002" name="file1" dev="loop2" ino=10 res=0 errno=0
[  443.638295][T10290] syz.2.1002: attempt to access beyond end of device
[  443.638295][T10290] loop2: rw=8423425, sector=54224, nr_sectors = 8 limit=40427
[  443.638859][T10292] F2FS-fs (loop0): f2fs_recover_fsync_data: recovery fsync data, check_only: 0
[  443.652679][T10292] F2FS-fs (loop0): Try to recover 1th superblock, ret: 0
[  443.656103][T10292] F2FS-fs (loop0): Mounted with checkpoint version = 48b305e5
[  443.661717][   T33] audit: type=1800 audit(1785886369.965:1974): pid=10292 uid=0 auid=4294967295 ses=4294967295 subj=unconfined op=collect_data cause=failed(directio) comm="syz.0.1003" name="file1" dev="loop0" ino=10 res=0 errno=0
[  443.673246][ T6116] syz-executor: attempt to access beyond end of device
[  443.673246][ T6116] loop2: rw=2049, sector=45096, nr_sectors = 8 limit=40427
[  443.679892][   T33] audit: type=1800 audit(1785886369.985:1975): pid=10292 uid=0 auid=4294967295 ses=4294967295 subj=unconfined op=collect_data cause=failed(directio) comm="syz.0.1003" name="file1" dev="loop0" ino=10 res=0 errno=0
[  443.687750][T10292] syz.0.1003: attempt to access beyond end of device
[  443.687750][T10292] loop0: rw=2049, sector=53248, nr_sectors = 976 limit=40427
[  443.687838][ T6116] CPU: 0 UID: 0 PID: 6116 Comm: syz-executor Not tainted syzkaller #0 PREEMPT(full) 
[  443.687848][ T6116] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
[  443.687853][ T6116] Call Trace:
[  443.687858][ T6116]  <TASK>
[  443.687862][ T6116]  dump_stack_lvl+0xe8/0x150
[  443.687878][ T6116]  f2fs_stop_checkpoint+0x3f6/0x5d0
[  443.687891][ T6116]  f2fs_write_end_io+0x124b/0x1710
[  443.687909][ T6116]  __submit_merged_bio+0x258/0x6a0
[  443.687917][ T6116]  ? rcu_is_watching+0x15/0xb0
[  443.687931][ T6116]  __submit_merged_write_cond+0x3c9/0x4e0
[  443.687943][ T6116]  ? __pfx___submit_merged_write_cond+0x10/0x10
[  443.687959][ T6116]  f2fs_write_data_pages+0x2a27/0x36f0
[  443.687969][ T6116]  ? __lock_acquire+0x683/0x2cf0
[  443.687991][ T6116]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  443.688005][ T6116]  ? __pfx_hlock_conflict+0x10/0x10
[  443.688011][ T6116]  ? __bfs+0x153/0x290
[  443.688019][ T6116]  ? __pfx_hlock_conflict+0x10/0x10
[  443.688035][ T6116]  ? __pfx_hlock_conflict+0x10/0x10
[  443.688041][ T6116]  ? __bfs+0x153/0x290
[  443.688049][ T6116]  ? __pfx_hlock_conflict+0x10/0x10
[  443.688061][ T6116]  ? lockdep_unlock+0x5d/0xd0
[  443.688068][ T6116]  ? __lock_acquire+0x13e8/0x2cf0
[  443.688086][ T6116]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  443.688096][ T6116]  do_writepages+0x338/0x560
[  443.688110][ T6116]  ? do_raw_spin_unlock+0x4d/0x210
[  443.688120][ T6116]  filemap_fdatawrite+0x1e9/0x2f0
[  443.688131][ T6116]  ? __pfx_filemap_fdatawrite+0x10/0x10
[  443.688173][ T6116]  ? do_raw_spin_unlock+0x4d/0x210
[  443.688182][ T6116]  f2fs_sync_dirty_inodes+0x30e/0x830
[  443.688198][ T6116]  f2fs_write_checkpoint+0xa3d/0x2710
[  443.688219][ T6116]  ? __pfx_f2fs_write_checkpoint+0x10/0x10
[  443.688246][ T6116]  kill_f2fs_super+0x2dd/0x700
[  443.688259][ T6116]  ? __pfx_kill_f2fs_super+0x10/0x10
[  443.688273][ T6116]  ? call_rcu+0x64b/0x8b0
[  443.688282][ T6116]  ? lockdep_hardirqs_on+0x7a/0x110
[  443.688296][ T6116]  deactivate_locked_super+0xbc/0x110
[  443.688308][ T6116]  cleanup_mnt+0x3d3/0x460
[  443.688317][ T6116]  task_work_run+0x1d9/0x270
[  443.688330][ T6116]  ? __pfx_task_work_run+0x10/0x10
[  443.688343][ T6116]  exit_to_user_mode_loop+0x1fa/0x730
[  443.688352][ T6116]  ? rcu_is_watching+0x15/0xb0
[  443.688362][ T6116]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  443.688370][ T6116]  do_syscall_64+0x353/0x580
[  443.688378][ T6116]  ? trace_irq_disable+0x3b/0x140
[  443.688390][ T6116]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  443.688398][ T6116] RIP: 0033:0x7f270e19f257
[  443.688407][ T6116] 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
[  443.688413][ T6116] RSP: 002b:00007ffe3f534648 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
[  443.688422][ T6116] RAX: 0000000000000000 RBX: 00007f270e23445c RCX: 00007f270e19f257
[  443.688427][ T6116] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffe3f534700
[  443.688432][ T6116] RBP: 00007ffe3f534700 R08: 00007ffe3f535700 R09: 00000000ffffffff
[  443.688437][ T6116] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffe3f535790
[  443.688441][ T6116] R13: 00007f270e23445c R14: 000000000006c495 R15: 00007ffe3f5357d0
[  443.688452][ T6116]  </TASK>
[  443.688678][ T6116] F2FS-fs (loop2): Stopped filesystem due to reason: 3
[  443.779360][T10299] syz.0.1003: attempt to access beyond end of device
[  443.779360][T10299] loop0: rw=8423425, sector=54224, nr_sectors = 8 limit=40427
[  443.864472][T10294] F2FS-fs (loop1): Small segment_count (9 < 1 * 24)
[  443.866901][T10294] F2FS-fs (loop1): Can't find valid F2FS filesystem in 1th superblock
[  443.874289][ T6110] syz-executor: attempt to access beyond end of device
[  443.874289][ T6110] loop0: rw=2049, sector=45096, nr_sectors = 8 limit=40427
[  443.881719][ T6110] CPU: 1 UID: 0 PID: 6110 Comm: syz-executor Not tainted syzkaller #0 PREEMPT(full) 
[  443.881735][ T6110] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
[  443.881742][ T6110] Call Trace:
[  443.881747][ T6110]  <TASK>
[  443.881751][ T6110]  dump_stack_lvl+0xe8/0x150
[  443.881770][ T6110]  f2fs_stop_checkpoint+0x3f6/0x5d0
[  443.881786][ T6110]  f2fs_write_end_io+0x124b/0x1710
[  443.881811][ T6110]  __submit_merged_bio+0x258/0x6a0
[  443.881822][ T6110]  ? rcu_is_watching+0x15/0xb0
[  443.881839][ T6110]  __submit_merged_write_cond+0x3c9/0x4e0
[  443.881856][ T6110]  ? __pfx___submit_merged_write_cond+0x10/0x10
[  443.881880][ T6110]  f2fs_write_data_pages+0x2a27/0x36f0
[  443.881912][ T6110]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  443.881932][ T6110]  ? __pfx_clockevents_program_event+0x10/0x10
[  443.881958][ T6110]  ? __pfx_hlock_conflict+0x10/0x10
[  443.881966][ T6110]  ? __bfs+0x153/0x290
[  443.881977][ T6110]  ? __pfx_hlock_conflict+0x10/0x10
[  443.881995][ T6110]  ? lockdep_unlock+0x5d/0xd0
[  443.882005][ T6110]  ? __lock_acquire+0x13e8/0x2cf0
[  443.882031][ T6110]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  443.882044][ T6110]  do_writepages+0x338/0x560
[  443.882063][ T6110]  ? do_raw_spin_unlock+0x4d/0x210
[  443.882076][ T6110]  filemap_fdatawrite+0x1e9/0x2f0
[  443.882090][ T6110]  ? __pfx_filemap_fdatawrite+0x10/0x10
[  443.882127][ T6110]  ? do_raw_spin_unlock+0x4d/0x210
[  443.882140][ T6110]  f2fs_sync_dirty_inodes+0x30e/0x830
[  443.882161][ T6110]  f2fs_write_checkpoint+0xa3d/0x2710
[  443.882192][ T6110]  ? __pfx_f2fs_write_checkpoint+0x10/0x10
[  443.882235][ T6110]  kill_f2fs_super+0x2dd/0x700
[  443.882253][ T6110]  ? __pfx_kill_f2fs_super+0x10/0x10
[  443.882272][ T6110]  ? call_rcu+0x64b/0x8b0
[  443.882280][ T6110]  ? lockdep_hardirqs_on+0x7a/0x110
[  443.882299][ T6110]  deactivate_locked_super+0xbc/0x110
[  443.882313][ T6110]  cleanup_mnt+0x3d3/0x460
[  443.882326][ T6110]  task_work_run+0x1d9/0x270
[  443.882341][ T6110]  ? __pfx_task_work_run+0x10/0x10
[  443.882381][ T6110]  exit_to_user_mode_loop+0x1fa/0x730
[  443.882395][ T6110]  ? rcu_is_watching+0x15/0xb0
[  443.882409][ T6110]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  443.882419][ T6110]  do_syscall_64+0x353/0x580
[  443.882429][ T6110]  ? trace_irq_disable+0x3b/0x140
[  443.882444][ T6110]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  443.882453][ T6110] RIP: 0033:0x7f730e59f257
[  443.882463][ T6110] 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
[  443.882471][ T6110] RSP: 002b:00007ffe088e1548 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
[  443.882510][ T6110] RAX: 0000000000000000 RBX: 00007f730e63445c RCX: 00007f730e59f257
[  443.882517][ T6110] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffe088e1600
[  443.882523][ T6110] RBP: 00007ffe088e1600 R08: 00007ffe088e2600 R09: 00000000ffffffff
[  443.882529][ T6110] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffe088e2690
[  443.882536][ T6110] R13: 00007f730e63445c R14: 000000000006c553 R15: 00007ffe088e26d0
[  443.882552][ T6110]  </TASK>
[  443.885305][ T6110] F2FS-fs (loop0): Stopped filesystem due to reason: 3
[  443.996385][T10294] F2FS-fs (loop1): f2fs_recover_fsync_data: recovery fsync data, check_only: 0
[  444.050911][T10294] F2FS-fs (loop1): Try to recover 1th superblock, ret: 0
[  444.053894][T10294] F2FS-fs (loop1): Mounted with checkpoint version = 48b305e5
[  444.065123][   T33] audit: type=1800 audit(1785886370.365:1976): pid=10294 uid=0 auid=4294967295 ses=4294967295 subj=unconfined op=collect_data cause=failed(directio) comm="syz.1.1004" name="file1" dev="loop1" ino=10 res=0 errno=0
[  444.076723][   T33] audit: type=1800 audit(1785886370.385:1977): pid=10294 uid=0 auid=4294967295 ses=4294967295 subj=unconfined op=collect_data cause=failed(directio) comm="syz.1.1004" name="file1" dev="loop1" ino=10 res=0 errno=0
2026/08/04 23:32:50 executed programs: 996
[  444.119365][ T6112] CPU: 0 UID: 0 PID: 6112 Comm: syz-executor Not tainted syzkaller #0 PREEMPT(full) 
[  444.119380][ T6112] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
[  444.119385][ T6112] Call Trace:
[  444.119389][ T6112]  <TASK>
[  444.119393][ T6112]  dump_stack_lvl+0xe8/0x150
[  444.119410][ T6112]  f2fs_stop_checkpoint+0x3f6/0x5d0
[  444.119423][ T6112]  f2fs_write_end_io+0x124b/0x1710
[  444.119442][ T6112]  __submit_merged_bio+0x258/0x6a0
[  444.119450][ T6112]  ? rcu_is_watching+0x15/0xb0
[  444.119464][ T6112]  __submit_merged_write_cond+0x3c9/0x4e0
[  444.119507][ T6112]  ? __pfx___submit_merged_write_cond+0x10/0x10
[  444.119525][ T6112]  f2fs_write_data_pages+0x2a27/0x36f0
[  444.119549][ T6112]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  444.119591][ T6112]  ? __pfx_hlock_conflict+0x10/0x10
[  444.119599][ T6112]  ? __bfs+0x153/0x290
[  444.119609][ T6112]  ? __pfx_hlock_conflict+0x10/0x10
[  444.119623][ T6112]  ? lockdep_unlock+0x5d/0xd0
[  444.119630][ T6112]  ? __lock_acquire+0x13e8/0x2cf0
[  444.119650][ T6112]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  444.119660][ T6112]  do_writepages+0x338/0x560
[  444.119675][ T6112]  ? do_raw_spin_unlock+0x4d/0x210
[  444.119685][ T6112]  filemap_fdatawrite+0x1e9/0x2f0
[  444.119697][ T6112]  ? __pfx_filemap_fdatawrite+0x10/0x10
[  444.119730][ T6112]  ? do_raw_spin_unlock+0x4d/0x210
[  444.119739][ T6112]  f2fs_sync_dirty_inodes+0x30e/0x830
[  444.119756][ T6112]  f2fs_write_checkpoint+0xa3d/0x2710
[  444.119779][ T6112]  ? __pfx_f2fs_write_checkpoint+0x10/0x10
[  444.119810][ T6112]  kill_f2fs_super+0x2dd/0x700
[  444.119823][ T6112]  ? __pfx_kill_f2fs_super+0x10/0x10
[  444.119838][ T6112]  ? call_rcu+0x64b/0x8b0
[  444.119844][ T6112]  ? lockdep_hardirqs_on+0x7a/0x110
[  444.119859][ T6112]  deactivate_locked_super+0xbc/0x110
[  444.119872][ T6112]  cleanup_mnt+0x3d3/0x460
[  444.119882][ T6112]  task_work_run+0x1d9/0x270
[  444.119895][ T6112]  ? __pfx_task_work_run+0x10/0x10
[  444.119910][ T6112]  exit_to_user_mode_loop+0x1fa/0x730
[  444.119920][ T6112]  ? rcu_is_watching+0x15/0xb0
[  444.119931][ T6112]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  444.119939][ T6112]  do_syscall_64+0x353/0x580
[  444.119948][ T6112]  ? trace_irq_disable+0x3b/0x140
[  444.119980][ T6112]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  444.119988][ T6112] RIP: 0033:0x7fe6d639f257
[  444.119996][ T6112] 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
[  444.120003][ T6112] RSP: 002b:00007ffc1f486698 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
[  444.120014][ T6112] RAX: 0000000000000000 RBX: 00007fe6d643445c RCX: 00007fe6d639f257
[  444.120019][ T6112] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffc1f486750
[  444.120023][ T6112] RBP: 00007ffc1f486750 R08: 00007ffc1f487750 R09: 00000000ffffffff
[  444.120028][ T6112] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc1f4877e0
[  444.120032][ T6112] R13: 00007fe6d643445c R14: 000000000006c64c R15: 00007ffc1f487820
[  444.120045][ T6112]  </TASK>
[  444.163503][ T6112] F2FS-fs (loop1): Stopped filesystem due to reason: 3
[  444.366703][T10303] F2FS-fs (loop2): Small segment_count (9 < 1 * 24)
[  444.374048][T10303] F2FS-fs (loop2): Can't find valid F2FS filesystem in 1th superblock
[  444.469010][T10303] F2FS-fs (loop2): f2fs_recover_fsync_data: recovery fsync data, check_only: 0
[  444.480057][T10303] F2FS-fs (loop2): Try to recover 1th superblock, ret: 0
[  444.488264][T10303] F2FS-fs (loop2): Mounted with checkpoint version = 48b305e5
[  444.519981][ T6116] CPU: 0 UID: 0 PID: 6116 Comm: syz-executor Not tainted syzkaller #0 PREEMPT(full) 
[  444.520002][ T6116] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
[  444.520010][ T6116] Call Trace:
[  444.520016][ T6116]  <TASK>
[  444.520021][ T6116]  dump_stack_lvl+0xe8/0x150
[  444.520047][ T6116]  f2fs_stop_checkpoint+0x3f6/0x5d0
[  444.520067][ T6116]  f2fs_write_end_io+0x124b/0x1710
[  444.520098][ T6116]  __submit_merged_bio+0x258/0x6a0
[  444.520112][ T6116]  ? rcu_is_watching+0x15/0xb0
[  444.520128][ T6116]  __submit_merged_write_cond+0x3c9/0x4e0
[  444.520140][ T6116]  ? __pfx___submit_merged_write_cond+0x10/0x10
[  444.520156][ T6116]  f2fs_write_data_pages+0x2a27/0x36f0
[  444.520177][ T6116]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  444.520201][ T6116]  ? __pfx_hlock_conflict+0x10/0x10
[  444.520208][ T6116]  ? __bfs+0x153/0x290
[  444.520224][ T6116]  ? __pfx_hlock_conflict+0x10/0x10
[  444.520236][ T6116]  ? lockdep_unlock+0x5d/0xd0
[  444.520243][ T6116]  ? __lock_acquire+0x13e8/0x2cf0
[  444.520261][ T6116]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  444.520271][ T6116]  do_writepages+0x338/0x560
[  444.520285][ T6116]  ? do_raw_spin_unlock+0x4d/0x210
[  444.520294][ T6116]  filemap_fdatawrite+0x1e9/0x2f0
[  444.520306][ T6116]  ? __pfx_filemap_fdatawrite+0x10/0x10
[  444.520329][ T6116]  ? do_raw_spin_unlock+0x4d/0x210
[  444.520340][ T6116]  f2fs_sync_dirty_inodes+0x30e/0x830
[  444.520355][ T6116]  f2fs_write_checkpoint+0xa3d/0x2710
[  444.520376][ T6116]  ? __pfx_f2fs_write_checkpoint+0x10/0x10
[  444.520402][ T6116]  kill_f2fs_super+0x2dd/0x700
[  444.520415][ T6116]  ? __pfx_kill_f2fs_super+0x10/0x10
[  444.520429][ T6116]  ? call_rcu+0x64b/0x8b0
[  444.520435][ T6116]  ? lockdep_hardirqs_on+0x7a/0x110
[  444.520448][ T6116]  deactivate_locked_super+0xbc/0x110
[  444.520460][ T6116]  cleanup_mnt+0x3d3/0x460
[  444.520501][ T6116]  task_work_run+0x1d9/0x270
[  444.520513][ T6116]  ? __pfx_task_work_run+0x10/0x10
[  444.520527][ T6116]  exit_to_user_mode_loop+0x1fa/0x730
[  444.520537][ T6116]  ? rcu_is_watching+0x15/0xb0
[  444.520547][ T6116]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  444.520556][ T6116]  do_syscall_64+0x353/0x580
[  444.520564][ T6116]  ? trace_irq_disable+0x3b/0x140
[  444.520576][ T6116]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  444.520583][ T6116] RIP: 0033:0x7f270e19f257
[  444.520592][ T6116] 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
[  444.520598][ T6116] RSP: 002b:00007ffe3f534648 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
[  444.520608][ T6116] RAX: 0000000000000000 RBX: 00007f270e23445c RCX: 00007f270e19f257
[  444.520613][ T6116] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffe3f534700
[  444.520617][ T6116] RBP: 00007ffe3f534700 R08: 00007ffe3f535700 R09: 00000000ffffffff
[  444.520622][ T6116] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffe3f535790
[  444.520627][ T6116] R13: 00007f270e23445c R14: 000000000006c7eb R15: 00007ffe3f5357d0
[  444.520638][ T6116]  </TASK>
[  444.520641][ T6116] F2FS-fs (loop2): Stopped filesystem due to reason: 3
[  444.607199][T10305] F2FS-fs (loop0): Small segment_count (9 < 1 * 24)
[  444.637622][T10305] F2FS-fs (loop0): Can't find valid F2FS filesystem in 1th superblock
[  444.704419][T10305] F2FS-fs (loop0): f2fs_recover_fsync_data: recovery fsync data, check_only: 0
[  444.716311][T10305] F2FS-fs (loop0): Try to recover 1th superblock, ret: 0
[  444.719320][T10305] F2FS-fs (loop0): Mounted with checkpoint version = 48b305e5
[  444.780685][ T6110] CPU: 1 UID: 0 PID: 6110 Comm: syz-executor Not tainted syzkaller #0 PREEMPT(full) 
[  444.780707][ T6110] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
[  444.780715][ T6110] Call Trace:
[  444.780720][ T6110]  <TASK>
[  444.780726][ T6110]  dump_stack_lvl+0xe8/0x150
[  444.780748][ T6110]  f2fs_stop_checkpoint+0x3f6/0x5d0
[  444.780770][ T6110]  f2fs_write_end_io+0x124b/0x1710
[  444.780801][ T6110]  __submit_merged_bio+0x258/0x6a0
[  444.780814][ T6110]  ? rcu_is_watching+0x15/0xb0
[  444.780835][ T6110]  __submit_merged_write_cond+0x3c9/0x4e0
[  444.780856][ T6110]  ? __pfx___submit_merged_write_cond+0x10/0x10
[  444.780888][ T6110]  f2fs_write_data_pages+0x2a27/0x36f0
[  444.780903][ T6110]  ? __lock_acquire+0x683/0x2cf0
[  444.780944][ T6110]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  444.781019][ T6110]  ? __pfx_hlock_conflict+0x10/0x10
[  444.781031][ T6110]  ? __bfs+0x153/0x290
[  444.781045][ T6110]  ? __pfx_hlock_conflict+0x10/0x10
[  444.781069][ T6110]  ? lockdep_unlock+0x5d/0xd0
[  444.781082][ T6110]  ? __lock_acquire+0x13e8/0x2cf0
[  444.781115][ T6110]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  444.781132][ T6110]  do_writepages+0x338/0x560
[  444.781156][ T6110]  ? do_raw_spin_unlock+0x4d/0x210
[  444.781173][ T6110]  filemap_fdatawrite+0x1e9/0x2f0
[  444.781192][ T6110]  ? __pfx_filemap_fdatawrite+0x10/0x10
[  444.781239][ T6110]  ? do_raw_spin_unlock+0x4d/0x210
[  444.781256][ T6110]  f2fs_sync_dirty_inodes+0x30e/0x830
[  444.781283][ T6110]  f2fs_write_checkpoint+0xa3d/0x2710
[  444.781324][ T6110]  ? __pfx_f2fs_write_checkpoint+0x10/0x10
[  444.781379][ T6110]  kill_f2fs_super+0x2dd/0x700
[  444.781402][ T6110]  ? __pfx_kill_f2fs_super+0x10/0x10
[  444.781427][ T6110]  ? call_rcu+0x64b/0x8b0
[  444.781438][ T6110]  ? lockdep_hardirqs_on+0x7a/0x110
[  444.781496][ T6110]  deactivate_locked_super+0xbc/0x110
[  444.781516][ T6110]  cleanup_mnt+0x3d3/0x460
[  444.781533][ T6110]  task_work_run+0x1d9/0x270
[  444.781552][ T6110]  ? __pfx_task_work_run+0x10/0x10
[  444.781576][ T6110]  exit_to_user_mode_loop+0x1fa/0x730
[  444.781589][ T6110]  ? rcu_is_watching+0x15/0xb0
[  444.781606][ T6110]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  444.781618][ T6110]  do_syscall_64+0x353/0x580
[  444.781632][ T6110]  ? trace_irq_disable+0x3b/0x140
[  444.781651][ T6110]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  444.781664][ T6110] RIP: 0033:0x7f730e59f257
[  444.781686][ T6110] 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
[  444.781698][ T6110] RSP: 002b:00007ffe088e1548 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
[  444.781712][ T6110] RAX: 0000000000000000 RBX: 00007f730e63445c RCX: 00007f730e59f257
[  444.781720][ T6110] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffe088e1600
[  444.781728][ T6110] RBP: 00007ffe088e1600 R08: 00007ffe088e2600 R09: 00000000ffffffff
[  444.781736][ T6110] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffe088e2690
[  444.781744][ T6110] R13: 00007f730e63445c R14: 000000000006c8ec R15: 00007ffe088e26d0
[  444.781767][ T6110]  </TASK>
[  444.782768][ T6110] F2FS-fs (loop0): Stopped filesystem due to reason: 3
[  444.921171][T10309] F2FS-fs (loop1): Small segment_count (9 < 1 * 24)
[  444.928265][T10309] F2FS-fs (loop1): Can't find valid F2FS filesystem in 1th superblock
[  445.042668][T10309] F2FS-fs (loop1): f2fs_recover_fsync_data: recovery fsync data, check_only: 0
[  445.051562][T10309] F2FS-fs (loop1): Try to recover 1th superblock, ret: 0
[  445.054391][T10309] F2FS-fs (loop1): Mounted with checkpoint version = 48b305e5
[  445.099640][ T6112] CPU: 0 UID: 0 PID: 6112 Comm: syz-executor Not tainted syzkaller #0 PREEMPT(full) 
[  445.099660][ T6112] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
[  445.099667][ T6112] Call Trace:
[  445.099673][ T6112]  <TASK>
[  445.099678][ T6112]  dump_stack_lvl+0xe8/0x150
[  445.099699][ T6112]  f2fs_stop_checkpoint+0x3f6/0x5d0
[  445.099715][ T6112]  f2fs_write_end_io+0x124b/0x1710
[  445.099740][ T6112]  __submit_merged_bio+0x258/0x6a0
[  445.099752][ T6112]  ? rcu_is_watching+0x15/0xb0
[  445.099769][ T6112]  __submit_merged_write_cond+0x3c9/0x4e0
[  445.099785][ T6112]  ? __pfx___submit_merged_write_cond+0x10/0x10
[  445.099808][ T6112]  f2fs_write_data_pages+0x2a27/0x36f0
[  445.099821][ T6112]  ? __lock_acquire+0x683/0x2cf0
[  445.099851][ T6112]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  445.099885][ T6112]  ? __pfx_hlock_conflict+0x10/0x10
[  445.099893][ T6112]  ? __bfs+0x153/0x290
[  445.099904][ T6112]  ? __pfx_hlock_conflict+0x10/0x10
[  445.099921][ T6112]  ? lockdep_unlock+0x5d/0xd0
[  445.099931][ T6112]  ? __lock_acquire+0x13e8/0x2cf0
[  445.099975][ T6112]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  445.099988][ T6112]  do_writepages+0x338/0x560
[  445.100007][ T6112]  ? do_raw_spin_unlock+0x4d/0x210
[  445.100021][ T6112]  filemap_fdatawrite+0x1e9/0x2f0
[  445.100036][ T6112]  ? __pfx_filemap_fdatawrite+0x10/0x10
[  445.100070][ T6112]  ? do_raw_spin_unlock+0x4d/0x210
[  445.100082][ T6112]  f2fs_sync_dirty_inodes+0x30e/0x830
[  445.100104][ T6112]  f2fs_write_checkpoint+0xa3d/0x2710
[  445.100133][ T6112]  ? __pfx_f2fs_write_checkpoint+0x10/0x10
[  445.100171][ T6112]  kill_f2fs_super+0x2dd/0x700
[  445.100189][ T6112]  ? __pfx_kill_f2fs_super+0x10/0x10
[  445.100208][ T6112]  ? call_rcu+0x64b/0x8b0
[  445.100216][ T6112]  ? lockdep_hardirqs_on+0x7a/0x110
[  445.100234][ T6112]  deactivate_locked_super+0xbc/0x110
[  445.100255][ T6112]  cleanup_mnt+0x3d3/0x460
[  445.100268][ T6112]  task_work_run+0x1d9/0x270
[  445.100283][ T6112]  ? __pfx_task_work_run+0x10/0x10
[  445.100301][ T6112]  exit_to_user_mode_loop+0x1fa/0x730
[  445.100314][ T6112]  ? rcu_is_watching+0x15/0xb0
[  445.100327][ T6112]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  445.100341][ T6112]  do_syscall_64+0x353/0x580
[  445.100352][ T6112]  ? trace_irq_disable+0x3b/0x140
[  445.100368][ T6112]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  445.100377][ T6112] RIP: 0033:0x7fe6d639f257
[  445.100388][ T6112] 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
[  445.100417][ T6112] RSP: 002b:00007ffc1f486698 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
[  445.100428][ T6112] RAX: 0000000000000000 RBX: 00007fe6d643445c RCX: 00007fe6d639f257
[  445.100435][ T6112] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffc1f486750
[  445.100441][ T6112] RBP: 00007ffc1f486750 R08: 00007ffc1f487750 R09: 00000000ffffffff
[  445.100447][ T6112] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc1f4877e0
[  445.100453][ T6112] R13: 00007fe6d643445c R14: 000000000006ca0e R15: 00007ffc1f487820
[  445.100496][ T6112]  </TASK>
[  445.107650][ T6112] F2FS-fs (loop1): Stopped filesystem due to reason: 3
[  445.184685][T10313] F2FS-fs (loop2): Small segment_count (9 < 1 * 24)
[  445.238870][T10313] F2FS-fs (loop2): Can't find valid F2FS filesystem in 1th superblock
[  445.329307][T10313] F2FS-fs (loop2): f2fs_recover_fsync_data: recovery fsync data, check_only: 0
[  445.335267][T10313] F2FS-fs (loop2): Try to recover 1th superblock, ret: 0
[  445.337770][T10313] F2FS-fs (loop2): Mounted with checkpoint version = 48b305e5
[  445.354857][ T6116] CPU: 0 UID: 0 PID: 6116 Comm: syz-executor Not tainted syzkaller #0 PREEMPT(full) 
[  445.354873][ T6116] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
[  445.354879][ T6116] Call Trace:
[  445.354883][ T6116]  <TASK>
[  445.354887][ T6116]  dump_stack_lvl+0xe8/0x150
[  445.354904][ T6116]  f2fs_stop_checkpoint+0x3f6/0x5d0
[  445.354917][ T6116]  f2fs_write_end_io+0x124b/0x1710
[  445.354935][ T6116]  __submit_merged_bio+0x258/0x6a0
[  445.354944][ T6116]  ? rcu_is_watching+0x15/0xb0
[  445.354959][ T6116]  __submit_merged_write_cond+0x3c9/0x4e0
[  445.354971][ T6116]  ? __pfx___submit_merged_write_cond+0x10/0x10
[  445.354988][ T6116]  f2fs_write_data_pages+0x2a27/0x36f0
[  445.355010][ T6116]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  445.355036][ T6116]  ? __pfx_hlock_conflict+0x10/0x10
[  445.355043][ T6116]  ? __bfs+0x153/0x290
[  445.355051][ T6116]  ? __pfx_hlock_conflict+0x10/0x10
[  445.355064][ T6116]  ? lockdep_unlock+0x5d/0xd0
[  445.355072][ T6116]  ? __lock_acquire+0x13e8/0x2cf0
[  445.355091][ T6116]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  445.355101][ T6116]  do_writepages+0x338/0x560
[  445.355116][ T6116]  ? do_raw_spin_unlock+0x4d/0x210
[  445.355126][ T6116]  filemap_fdatawrite+0x1e9/0x2f0
[  445.355138][ T6116]  ? __pfx_filemap_fdatawrite+0x10/0x10
[  445.355163][ T6116]  ? do_raw_spin_unlock+0x4d/0x210
[  445.355195][ T6116]  f2fs_sync_dirty_inodes+0x30e/0x830
[  445.355217][ T6116]  f2fs_write_checkpoint+0xa3d/0x2710
[  445.355259][ T6116]  ? __pfx_f2fs_write_checkpoint+0x10/0x10
[  445.355295][ T6116]  kill_f2fs_super+0x2dd/0x700
[  445.355308][ T6116]  ? __pfx_kill_f2fs_super+0x10/0x10
[  445.355323][ T6116]  ? call_rcu+0x64b/0x8b0
[  445.355329][ T6116]  ? lockdep_hardirqs_on+0x7a/0x110
[  445.355344][ T6116]  deactivate_locked_super+0xbc/0x110
[  445.355357][ T6116]  cleanup_mnt+0x3d3/0x460
[  445.355367][ T6116]  task_work_run+0x1d9/0x270
[  445.355380][ T6116]  ? __pfx_task_work_run+0x10/0x10
[  445.355394][ T6116]  exit_to_user_mode_loop+0x1fa/0x730
[  445.355403][ T6116]  ? rcu_is_watching+0x15/0xb0
[  445.355413][ T6116]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  445.355424][ T6116]  do_syscall_64+0x353/0x580
[  445.355437][ T6116]  ? trace_irq_disable+0x3b/0x140
[  445.355480][ T6116]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  445.355491][ T6116] RIP: 0033:0x7f270e19f257
[  445.355503][ T6116] 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
[  445.355512][ T6116] RSP: 002b:00007ffe3f534648 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
[  445.355524][ T6116] RAX: 0000000000000000 RBX: 00007f270e23445c RCX: 00007f270e19f257
[  445.355531][ T6116] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffe3f534700
[  445.355537][ T6116] RBP: 00007ffe3f534700 R08: 00007ffe3f535700 R09: 00000000ffffffff
[  445.355543][ T6116] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffe3f535790
[  445.355550][ T6116] R13: 00007f270e23445c R14: 000000000006c92e R15: 00007ffe3f5357d0
[  445.355567][ T6116]  </TASK>
[  445.356085][ T6116] F2FS-fs (loop2): Stopped filesystem due to reason: 3
[  445.608344][T10319] F2FS-fs (loop0): Small segment_count (9 < 1 * 24)
[  445.612622][T10319] F2FS-fs (loop0): Can't find valid F2FS filesystem in 1th superblock
[  445.682872][T10319] F2FS-fs (loop0): f2fs_recover_fsync_data: recovery fsync data, check_only: 0
[  445.699131][T10319] F2FS-fs (loop0): Try to recover 1th superblock, ret: 0
[  445.701714][T10319] F2FS-fs (loop0): Mounted with checkpoint version = 48b305e5
[  445.726177][ T6110] CPU: 0 UID: 0 PID: 6110 Comm: syz-executor Not tainted syzkaller #0 PREEMPT(full) 
[  445.726193][ T6110] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
[  445.726199][ T6110] Call Trace:
[  445.726204][ T6110]  <TASK>
[  445.726208][ T6110]  dump_stack_lvl+0xe8/0x150
[  445.726231][ T6110]  f2fs_stop_checkpoint+0x3f6/0x5d0
[  445.726244][ T6110]  f2fs_write_end_io+0x124b/0x1710
[  445.726261][ T6110]  __submit_merged_bio+0x258/0x6a0
[  445.726270][ T6110]  ? rcu_is_watching+0x15/0xb0
[  445.726284][ T6110]  __submit_merged_write_cond+0x3c9/0x4e0
[  445.726296][ T6110]  ? __pfx___submit_merged_write_cond+0x10/0x10
[  445.726312][ T6110]  f2fs_write_data_pages+0x2a27/0x36f0
[  445.726322][ T6110]  ? __lock_acquire+0x683/0x2cf0
[  445.726343][ T6110]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  445.726367][ T6110]  ? __pfx_hlock_conflict+0x10/0x10
[  445.726373][ T6110]  ? __bfs+0x153/0x290
[  445.726381][ T6110]  ? __pfx_hlock_conflict+0x10/0x10
[  445.726393][ T6110]  ? lockdep_unlock+0x5d/0xd0
[  445.726401][ T6110]  ? __lock_acquire+0x13e8/0x2cf0
[  445.726418][ T6110]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  445.726428][ T6110]  do_writepages+0x338/0x560
[  445.726441][ T6110]  ? do_raw_spin_unlock+0x4d/0x210
[  445.726484][ T6110]  filemap_fdatawrite+0x1e9/0x2f0
[  445.726501][ T6110]  ? __pfx_filemap_fdatawrite+0x10/0x10
[  445.726542][ T6110]  ? do_raw_spin_unlock+0x4d/0x210
[  445.726557][ T6110]  f2fs_sync_dirty_inodes+0x30e/0x830
[  445.726578][ T6110]  f2fs_write_checkpoint+0xa3d/0x2710
[  445.726614][ T6110]  ? __pfx_f2fs_write_checkpoint+0x10/0x10
[  445.726655][ T6110]  kill_f2fs_super+0x2dd/0x700
[  445.726676][ T6110]  ? __pfx_kill_f2fs_super+0x10/0x10
[  445.726698][ T6110]  ? call_rcu+0x64b/0x8b0
[  445.726708][ T6110]  ? lockdep_hardirqs_on+0x7a/0x110
[  445.726730][ T6110]  deactivate_locked_super+0xbc/0x110
[  445.726744][ T6110]  cleanup_mnt+0x3d3/0x460
[  445.726759][ T6110]  task_work_run+0x1d9/0x270
[  445.726779][ T6110]  ? __pfx_task_work_run+0x10/0x10
[  445.726800][ T6110]  exit_to_user_mode_loop+0x1fa/0x730
[  445.726815][ T6110]  ? rcu_is_watching+0x15/0xb0
[  445.726826][ T6110]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  445.726838][ T6110]  do_syscall_64+0x353/0x580
[  445.726850][ T6110]  ? trace_irq_disable+0x3b/0x140
[  445.726869][ T6110]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  445.726880][ T6110] RIP: 0033:0x7f730e59f257
[  445.726893][ T6110] 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
[  445.726903][ T6110] RSP: 002b:00007ffe088e1548 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
[  445.726914][ T6110] RAX: 0000000000000000 RBX: 00007f730e63445c RCX: 00007f730e59f257
[  445.726922][ T6110] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffe088e1600
[  445.726929][ T6110] RBP: 00007ffe088e1600 R08: 00007ffe088e2600 R09: 00000000ffffffff
[  445.726937][ T6110] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffe088e2690
[  445.726944][ T6110] R13: 00007f730e63445c R14: 000000000006cca4 R15: 00007ffe088e26d0
[  445.726982][ T6110]  </TASK>
[  445.840311][T10321] set_capacity_and_notify: 6 callbacks suppressed
[  445.840321][T10321] loop1: detected capacity change from 0 to 40427
[  445.846701][T10321] F2FS-fs (loop1): Small segment_count (9 < 1 * 24)
[  445.849511][T10321] F2FS-fs (loop1): Can't find valid F2FS filesystem in 1th superblock
[  445.890771][T10321] F2FS-fs (loop1): f2fs_recover_fsync_data: recovery fsync data, check_only: 0
[  445.896009][T10321] F2FS-fs (loop1): Try to recover 1th superblock, ret: 0
[  445.899328][T10321] F2FS-fs (loop1): Mounted with checkpoint version = 48b305e5
[  445.916023][ T6112] CPU: 0 UID: 0 PID: 6112 Comm: syz-executor Not tainted syzkaller #0 PREEMPT(full) 
[  445.916040][ T6112] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
[  445.916045][ T6112] Call Trace:
[  445.916050][ T6112]  <TASK>
[  445.916054][ T6112]  dump_stack_lvl+0xe8/0x150
[  445.916071][ T6112]  f2fs_stop_checkpoint+0x3f6/0x5d0
[  445.916084][ T6112]  f2fs_write_end_io+0x124b/0x1710
[  445.916102][ T6112]  __submit_merged_bio+0x258/0x6a0
[  445.916110][ T6112]  ? rcu_is_watching+0x15/0xb0
[  445.916124][ T6112]  __submit_merged_write_cond+0x3c9/0x4e0
[  445.916135][ T6112]  ? __pfx___submit_merged_write_cond+0x10/0x10
[  445.916151][ T6112]  f2fs_write_data_pages+0x2a27/0x36f0
[  445.916161][ T6112]  ? __lock_acquire+0x683/0x2cf0
[  445.916181][ T6112]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  445.916205][ T6112]  ? __pfx_hlock_conflict+0x10/0x10
[  445.916212][ T6112]  ? __bfs+0x153/0x290
[  445.916220][ T6112]  ? __pfx_hlock_conflict+0x10/0x10
[  445.916234][ T6112]  ? lockdep_unlock+0x5d/0xd0
[  445.916242][ T6112]  ? __lock_acquire+0x13e8/0x2cf0
[  445.916259][ T6112]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  445.916269][ T6112]  do_writepages+0x338/0x560
[  445.916282][ T6112]  ? do_raw_spin_unlock+0x4d/0x210
[  445.916291][ T6112]  filemap_fdatawrite+0x1e9/0x2f0
[  445.916301][ T6112]  ? __pfx_filemap_fdatawrite+0x10/0x10
[  445.916325][ T6112]  ? do_raw_spin_unlock+0x4d/0x210
[  445.916333][ T6112]  f2fs_sync_dirty_inodes+0x30e/0x830
[  445.916349][ T6112]  f2fs_write_checkpoint+0xa3d/0x2710
[  445.916374][ T6112]  ? __pfx_f2fs_write_checkpoint+0x10/0x10
[  445.916401][ T6112]  kill_f2fs_super+0x2dd/0x700
[  445.916414][ T6112]  ? __pfx_kill_f2fs_super+0x10/0x10
[  445.916427][ T6112]  ? call_rcu+0x64b/0x8b0
[  445.916434][ T6112]  ? lockdep_hardirqs_on+0x7a/0x110
[  445.916479][ T6112]  deactivate_locked_super+0xbc/0x110
[  445.916499][ T6112]  cleanup_mnt+0x3d3/0x460
[  445.916514][ T6112]  task_work_run+0x1d9/0x270
[  445.916529][ T6112]  ? __pfx_task_work_run+0x10/0x10
[  445.916542][ T6112]  exit_to_user_mode_loop+0x1fa/0x730
[  445.916556][ T6112]  ? rcu_is_watching+0x15/0xb0
[  445.916571][ T6112]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  445.916583][ T6112]  do_syscall_64+0x353/0x580
[  445.916595][ T6112]  ? trace_irq_disable+0x3b/0x140
[  445.916613][ T6112]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  445.916624][ T6112] RIP: 0033:0x7fe6d639f257
[  445.916636][ T6112] 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
[  445.916646][ T6112] RSP: 002b:00007ffc1f486698 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
[  445.916659][ T6112] RAX: 0000000000000000 RBX: 00007fe6d643445c RCX: 00007fe6d639f257
[  445.916667][ T6112] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffc1f486750
[  445.916674][ T6112] RBP: 00007ffc1f486750 R08: 00007ffc1f487750 R09: 00000000ffffffff
[  445.916682][ T6112] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc1f4877e0
[  445.916689][ T6112] R13: 00007fe6d643445c R14: 000000000006cba2 R15: 00007ffc1f487820
[  445.916707][ T6112]  </TASK>
[  445.916712][ T6112] F2FS-fs (loop1): Stopped filesystem due to reason: 3
[  445.929374][ T6110] F2FS-fs (loop0): Stopped filesystem due to reason: 3
[  445.975200][T10325] loop2: detected capacity change from 0 to 40427
[  446.080931][T10325] F2FS-fs (loop2): Small segment_count (9 < 1 * 24)
[  446.083350][T10325] F2FS-fs (loop2): Can't find valid F2FS filesystem in 1th superblock
[  446.189067][T10325] F2FS-fs (loop2): f2fs_recover_fsync_data: recovery fsync data, check_only: 0
[  446.207369][T10325] F2FS-fs (loop2): Try to recover 1th superblock, ret: 0
[  446.214118][T10325] F2FS-fs (loop2): Mounted with checkpoint version = 48b305e5
[  446.250802][ T6116] CPU: 1 UID: 0 PID: 6116 Comm: syz-executor Not tainted syzkaller #0 PREEMPT(full) 
[  446.250816][ T6116] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
[  446.250821][ T6116] Call Trace:
[  446.250825][ T6116]  <TASK>
[  446.250829][ T6116]  dump_stack_lvl+0xe8/0x150
[  446.250844][ T6116]  f2fs_stop_checkpoint+0x3f6/0x5d0
[  446.250857][ T6116]  f2fs_write_end_io+0x124b/0x1710
[  446.250875][ T6116]  __submit_merged_bio+0x258/0x6a0
[  446.250883][ T6116]  ? rcu_is_watching+0x15/0xb0
[  446.250896][ T6116]  __submit_merged_write_cond+0x3c9/0x4e0
[  446.250908][ T6116]  ? __pfx___submit_merged_write_cond+0x10/0x10
[  446.250925][ T6116]  f2fs_write_data_pages+0x2a27/0x36f0
[  446.250934][ T6116]  ? __lock_acquire+0x683/0x2cf0
[  446.250956][ T6116]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  446.250981][ T6116]  ? __pfx_hlock_conflict+0x10/0x10
[  446.250987][ T6116]  ? __bfs+0x153/0x290
[  446.250995][ T6116]  ? __pfx_hlock_conflict+0x10/0x10
[  446.251008][ T6116]  ? lockdep_unlock+0x5d/0xd0
[  446.251016][ T6116]  ? __lock_acquire+0x13e8/0x2cf0
[  446.251034][ T6116]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  446.251044][ T6116]  do_writepages+0x338/0x560
[  446.251058][ T6116]  ? do_raw_spin_unlock+0x4d/0x210
[  446.251067][ T6116]  filemap_fdatawrite+0x1e9/0x2f0
[  446.251078][ T6116]  ? __pfx_filemap_fdatawrite+0x10/0x10
[  446.251104][ T6116]  ? do_raw_spin_unlock+0x4d/0x210
[  446.251113][ T6116]  f2fs_sync_dirty_inodes+0x30e/0x830
[  446.251129][ T6116]  f2fs_write_checkpoint+0xa3d/0x2710
[  446.251151][ T6116]  ? __pfx_f2fs_write_checkpoint+0x10/0x10
[  446.251188][ T6116]  kill_f2fs_super+0x2dd/0x700
[  446.251201][ T6116]  ? __pfx_kill_f2fs_super+0x10/0x10
[  446.251237][ T6116]  ? call_rcu+0x64b/0x8b0
[  446.251244][ T6116]  ? lockdep_hardirqs_on+0x7a/0x110
[  446.251258][ T6116]  deactivate_locked_super+0xbc/0x110
[  446.251270][ T6116]  cleanup_mnt+0x3d3/0x460
[  446.251280][ T6116]  task_work_run+0x1d9/0x270
[  446.251292][ T6116]  ? __pfx_task_work_run+0x10/0x10
[  446.251306][ T6116]  exit_to_user_mode_loop+0x1fa/0x730
[  446.251315][ T6116]  ? rcu_is_watching+0x15/0xb0
[  446.251325][ T6116]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  446.251333][ T6116]  do_syscall_64+0x353/0x580
[  446.251341][ T6116]  ? trace_irq_disable+0x3b/0x140
[  446.251352][ T6116]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  446.251359][ T6116] RIP: 0033:0x7f270e19f257
[  446.251367][ T6116] 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
[  446.251374][ T6116] RSP: 002b:00007ffe3f534648 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
[  446.251383][ T6116] RAX: 0000000000000000 RBX: 00007f270e23445c RCX: 00007f270e19f257
[  446.251388][ T6116] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffe3f534700
[  446.251393][ T6116] RBP: 00007ffe3f534700 R08: 00007ffe3f535700 R09: 00000000ffffffff
[  446.251398][ T6116] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffe3f535790
[  446.251402][ T6116] R13: 00007f270e23445c R14: 000000000006ceab R15: 00007ffe3f5357d0
[  446.251414][ T6116]  </TASK>
[  446.349198][ T6116] F2FS-fs (loop2): Stopped filesystem due to reason: 3
[  446.393606][T10329] loop1: detected capacity change from 0 to 40427
[  446.396385][T10329] F2FS-fs (loop1): Small segment_count (9 < 1 * 24)
[  446.401490][T10329] F2FS-fs (loop1): Can't find valid F2FS filesystem in 1th superblock
[  446.460648][T10329] F2FS-fs (loop1): f2fs_recover_fsync_data: recovery fsync data, check_only: 0
[  446.465969][T10329] F2FS-fs (loop1): Try to recover 1th superblock, ret: 0
[  446.468978][T10329] F2FS-fs (loop1): Mounted with checkpoint version = 48b305e5
[  446.522670][ T6112] CPU: 0 UID: 0 PID: 6112 Comm: syz-executor Not tainted syzkaller #0 PREEMPT(full) 
[  446.522694][ T6112] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
[  446.522703][ T6112] Call Trace:
[  446.522711][ T6112]  <TASK>
[  446.522716][ T6112]  dump_stack_lvl+0xe8/0x150
[  446.522743][ T6112]  f2fs_stop_checkpoint+0x3f6/0x5d0
[  446.522773][ T6112]  f2fs_write_end_io+0x124b/0x1710
[  446.522806][ T6112]  __submit_merged_bio+0x258/0x6a0
[  446.522819][ T6112]  ? rcu_is_watching+0x15/0xb0
[  446.522841][ T6112]  __submit_merged_write_cond+0x3c9/0x4e0
[  446.522862][ T6112]  ? __pfx___submit_merged_write_cond+0x10/0x10
[  446.522892][ T6112]  f2fs_write_data_pages+0x2a27/0x36f0
[  446.522908][ T6112]  ? __lock_acquire+0x683/0x2cf0
[  446.522948][ T6112]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  446.522996][ T6112]  ? __pfx_hlock_conflict+0x10/0x10
[  446.523007][ T6112]  ? __bfs+0x153/0x290
[  446.523020][ T6112]  ? __pfx_hlock_conflict+0x10/0x10
[  446.523043][ T6112]  ? lockdep_unlock+0x5d/0xd0
[  446.523056][ T6112]  ? __lock_acquire+0x13e8/0x2cf0
[  446.523087][ T6112]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  446.523102][ T6112]  do_writepages+0x338/0x560
[  446.523150][ T6112]  ? do_raw_spin_unlock+0x4d/0x210
[  446.523170][ T6112]  filemap_fdatawrite+0x1e9/0x2f0
[  446.523189][ T6112]  ? __pfx_filemap_fdatawrite+0x10/0x10
[  446.523235][ T6112]  ? do_raw_spin_unlock+0x4d/0x210
[  446.523250][ T6112]  f2fs_sync_dirty_inodes+0x30e/0x830
[  446.523276][ T6112]  f2fs_write_checkpoint+0xa3d/0x2710
[  446.523313][ T6112]  ? __pfx_f2fs_write_checkpoint+0x10/0x10
[  446.523367][ T6112]  kill_f2fs_super+0x2dd/0x700
[  446.523391][ T6112]  ? __pfx_kill_f2fs_super+0x10/0x10
[  446.523416][ T6112]  ? call_rcu+0x64b/0x8b0
[  446.523428][ T6112]  ? lockdep_hardirqs_on+0x7a/0x110
[  446.523482][ T6112]  deactivate_locked_super+0xbc/0x110
[  446.523503][ T6112]  cleanup_mnt+0x3d3/0x460
[  446.523520][ T6112]  task_work_run+0x1d9/0x270
[  446.523539][ T6112]  ? __pfx_task_work_run+0x10/0x10
[  446.523560][ T6112]  exit_to_user_mode_loop+0x1fa/0x730
[  446.523574][ T6112]  ? rcu_is_watching+0x15/0xb0
[  446.523590][ T6112]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  446.523603][ T6112]  do_syscall_64+0x353/0x580
[  446.523616][ T6112]  ? trace_irq_disable+0x3b/0x140
[  446.523636][ T6112]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  446.523648][ T6112] RIP: 0033:0x7fe6d639f257
[  446.523661][ T6112] 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
[  446.523673][ T6112] RSP: 002b:00007ffc1f486698 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
[  446.523688][ T6112] RAX: 0000000000000000 RBX: 00007fe6d643445c RCX: 00007fe6d639f257
[  446.523696][ T6112] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffc1f486750
[  446.523703][ T6112] RBP: 00007ffc1f486750 R08: 00007ffc1f487750 R09: 00000000ffffffff
[  446.523712][ T6112] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc1f4877e0
[  446.523719][ T6112] R13: 00007fe6d643445c R14: 000000000006cfb5 R15: 00007ffc1f487820
[  446.523739][ T6112]  </TASK>
[  446.654658][ T6112] F2FS-fs (loop1): Stopped filesystem due to reason: 3
[  446.695160][T10333] loop0: detected capacity change from 0 to 40427
[  446.704070][T10333] F2FS-fs (loop0): Small segment_count (9 < 1 * 24)
[  446.717510][T10333] F2FS-fs (loop0): Can't find valid F2FS filesystem in 1th superblock
[  446.764194][T10333] F2FS-fs (loop0): f2fs_recover_fsync_data: recovery fsync data, check_only: 0
[  446.769660][T10333] F2FS-fs (loop0): Try to recover 1th superblock, ret: 0
[  446.771965][T10333] F2FS-fs (loop0): Mounted with checkpoint version = 48b305e5
[  446.790239][ T6110] CPU: 0 UID: 0 PID: 6110 Comm: syz-executor Not tainted syzkaller #0 PREEMPT(full) 
[  446.790262][ T6110] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
[  446.790272][ T6110] Call Trace:
[  446.790279][ T6110]  <TASK>
[  446.790285][ T6110]  dump_stack_lvl+0xe8/0x150
[  446.790311][ T6110]  f2fs_stop_checkpoint+0x3f6/0x5d0
[  446.790331][ T6110]  f2fs_write_end_io+0x124b/0x1710
[  446.790366][ T6110]  __submit_merged_bio+0x258/0x6a0
[  446.790380][ T6110]  ? rcu_is_watching+0x15/0xb0
[  446.790402][ T6110]  __submit_merged_write_cond+0x3c9/0x4e0
[  446.790423][ T6110]  ? __pfx___submit_merged_write_cond+0x10/0x10
[  446.790487][ T6110]  f2fs_write_data_pages+0x2a27/0x36f0
[  446.790504][ T6110]  ? __lock_acquire+0x683/0x2cf0
[  446.790543][ T6110]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  446.790588][ T6110]  ? __pfx_hlock_conflict+0x10/0x10
[  446.790599][ T6110]  ? __bfs+0x153/0x290
[  446.790614][ T6110]  ? __pfx_hlock_conflict+0x10/0x10
[  446.790637][ T6110]  ? lockdep_unlock+0x5d/0xd0
[  446.790649][ T6110]  ? __lock_acquire+0x13e8/0x2cf0
[  446.790682][ T6110]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  446.790699][ T6110]  do_writepages+0x338/0x560
[  446.790724][ T6110]  ? do_raw_spin_unlock+0x4d/0x210
[  446.790740][ T6110]  filemap_fdatawrite+0x1e9/0x2f0
[  446.790766][ T6110]  ? __pfx_filemap_fdatawrite+0x10/0x10
[  446.790812][ T6110]  ? do_raw_spin_unlock+0x4d/0x210
[  446.790828][ T6110]  f2fs_sync_dirty_inodes+0x30e/0x830
[  446.790856][ T6110]  f2fs_write_checkpoint+0xa3d/0x2710
[  446.790894][ T6110]  ? __pfx_f2fs_write_checkpoint+0x10/0x10
[  446.790946][ T6110]  kill_f2fs_super+0x2dd/0x700
[  446.790969][ T6110]  ? __pfx_kill_f2fs_super+0x10/0x10
[  446.790994][ T6110]  ? call_rcu+0x64b/0x8b0
[  446.791005][ T6110]  ? lockdep_hardirqs_on+0x7a/0x110
[  446.791029][ T6110]  deactivate_locked_super+0xbc/0x110
[  446.791048][ T6110]  cleanup_mnt+0x3d3/0x460
[  446.791064][ T6110]  task_work_run+0x1d9/0x270
[  446.791086][ T6110]  ? __pfx_task_work_run+0x10/0x10
[  446.791109][ T6110]  exit_to_user_mode_loop+0x1fa/0x730
[  446.791126][ T6110]  ? rcu_is_watching+0x15/0xb0
[  446.791144][ T6110]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  446.791158][ T6110]  do_syscall_64+0x353/0x580
[  446.791172][ T6110]  ? trace_irq_disable+0x3b/0x140
[  446.791192][ T6110]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  446.791204][ T6110] RIP: 0033:0x7f730e59f257
[  446.791217][ T6110] 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
[  446.791227][ T6110] RSP: 002b:00007ffe088e1548 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
[  446.791242][ T6110] RAX: 0000000000000000 RBX: 00007f730e63445c RCX: 00007f730e59f257
[  446.791251][ T6110] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffe088e1600
[  446.791258][ T6110] RBP: 00007ffe088e1600 R08: 00007ffe088e2600 R09: 00000000ffffffff
[  446.791266][ T6110] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffe088e2690
[  446.791274][ T6110] R13: 00007f730e63445c R14: 000000000006d0c3 R15: 00007ffe088e26d0
[  446.791294][ T6110]  </TASK>
[  446.791300][ T6110] F2FS-fs (loop0): Stopped filesystem due to reason: 3
[  447.001849][T10337] loop2: detected capacity change from 0 to 40427
[  447.005358][T10337] F2FS-fs (loop2): Small segment_count (9 < 1 * 24)
[  447.007897][T10337] F2FS-fs (loop2): Can't find valid F2FS filesystem in 1th superblock
[  447.076076][T10337] F2FS-fs (loop2): f2fs_recover_fsync_data: recovery fsync data, check_only: 0
[  447.088100][T10337] F2FS-fs (loop2): Try to recover 1th superblock, ret: 0
[  447.091189][T10337] F2FS-fs (loop2): Mounted with checkpoint version = 48b305e5
[  447.128388][ T6116] CPU: 0 UID: 0 PID: 6116 Comm: syz-executor Not tainted syzkaller #0 PREEMPT(full) 
[  447.128415][ T6116] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
[  447.128423][ T6116] Call Trace:
[  447.128453][ T6116]  <TASK>
[  447.128460][ T6116]  dump_stack_lvl+0xe8/0x150
[  447.128481][ T6116]  f2fs_stop_checkpoint+0x3f6/0x5d0
[  447.128494][ T6116]  f2fs_write_end_io+0x124b/0x1710
[  447.128514][ T6116]  __submit_merged_bio+0x258/0x6a0
[  447.128523][ T6116]  ? rcu_is_watching+0x15/0xb0
[  447.128537][ T6116]  __submit_merged_write_cond+0x3c9/0x4e0
[  447.128554][ T6116]  ? __pfx___submit_merged_write_cond+0x10/0x10
[  447.128580][ T6116]  f2fs_write_data_pages+0x2a27/0x36f0
[  447.128595][ T6116]  ? __lock_acquire+0x683/0x2cf0
[  447.128631][ T6116]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  447.128674][ T6116]  ? __pfx_hlock_conflict+0x10/0x10
[  447.128684][ T6116]  ? __bfs+0x153/0x290
[  447.128698][ T6116]  ? __pfx_hlock_conflict+0x10/0x10
[  447.128720][ T6116]  ? lockdep_unlock+0x5d/0xd0
[  447.128732][ T6116]  ? __lock_acquire+0x13e8/0x2cf0
[  447.128761][ T6116]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  447.128779][ T6116]  do_writepages+0x338/0x560
[  447.128801][ T6116]  ? do_raw_spin_unlock+0x4d/0x210
[  447.128817][ T6116]  filemap_fdatawrite+0x1e9/0x2f0
[  447.128836][ T6116]  ? __pfx_filemap_fdatawrite+0x10/0x10
[  447.128865][ T6116]  ? do_raw_spin_unlock+0x4d/0x210
[  447.128874][ T6116]  f2fs_sync_dirty_inodes+0x30e/0x830
[  447.128894][ T6116]  f2fs_write_checkpoint+0xa3d/0x2710
[  447.128929][ T6116]  ? __pfx_f2fs_write_checkpoint+0x10/0x10
[  447.128977][ T6116]  kill_f2fs_super+0x2dd/0x700
[  447.128996][ T6116]  ? __pfx_kill_f2fs_super+0x10/0x10
[  447.129021][ T6116]  ? call_rcu+0x64b/0x8b0
[  447.129031][ T6116]  ? lockdep_hardirqs_on+0x7a/0x110
[  447.129055][ T6116]  deactivate_locked_super+0xbc/0x110
[  447.129074][ T6116]  cleanup_mnt+0x3d3/0x460
[  447.129089][ T6116]  task_work_run+0x1d9/0x270
[  447.129110][ T6116]  ? __pfx_task_work_run+0x10/0x10
[  447.129134][ T6116]  exit_to_user_mode_loop+0x1fa/0x730
[  447.129149][ T6116]  ? rcu_is_watching+0x15/0xb0
[  447.129164][ T6116]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  447.129176][ T6116]  do_syscall_64+0x353/0x580
[  447.129190][ T6116]  ? trace_irq_disable+0x3b/0x140
[  447.129208][ T6116]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  447.129219][ T6116] RIP: 0033:0x7f270e19f257
[  447.129232][ T6116] 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
[  447.129248][ T6116] RSP: 002b:00007ffe3f534648 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
[  447.129258][ T6116] RAX: 0000000000000000 RBX: 00007f270e23445c RCX: 00007f270e19f257
[  447.129263][ T6116] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffe3f534700
[  447.129268][ T6116] RBP: 00007ffe3f534700 R08: 00007ffe3f535700 R09: 00000000ffffffff
[  447.129273][ T6116] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffe3f535790
[  447.129278][ T6116] R13: 00007f270e23445c R14: 000000000006d219 R15: 00007ffe3f5357d0
[  447.129289][ T6116]  </TASK>
[  447.129319][ T6116] F2FS-fs (loop2): Stopped filesystem due to reason: 3
[  447.250723][T10341] loop1: detected capacity change from 0 to 40427
[  447.259949][T10341] F2FS-fs (loop1): Small segment_count (9 < 1 * 24)
[  447.271980][T10341] F2FS-fs (loop1): Can't find valid F2FS filesystem in 1th superblock
[  447.389771][T10341] F2FS-fs (loop1): f2fs_recover_fsync_data: recovery fsync data, check_only: 0
[  447.409456][T10341] F2FS-fs (loop1): Try to recover 1th superblock, ret: 0
[  447.412396][T10341] F2FS-fs (loop1): Mounted with checkpoint version = 48b305e5
[  447.457286][ T6112] CPU: 1 UID: 0 PID: 6112 Comm: syz-executor Not tainted syzkaller #0 PREEMPT(full) 
[  447.457308][ T6112] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
[  447.457316][ T6112] Call Trace:
[  447.457323][ T6112]  <TASK>
[  447.457329][ T6112]  dump_stack_lvl+0xe8/0x150
[  447.457351][ T6112]  f2fs_stop_checkpoint+0x3f6/0x5d0
[  447.457371][ T6112]  f2fs_write_end_io+0x124b/0x1710
[  447.457403][ T6112]  __submit_merged_bio+0x258/0x6a0
[  447.457418][ T6112]  ? rcu_is_watching+0x15/0xb0
[  447.457475][ T6112]  __submit_merged_write_cond+0x3c9/0x4e0
[  447.457497][ T6112]  ? __pfx___submit_merged_write_cond+0x10/0x10
[  447.457526][ T6112]  f2fs_write_data_pages+0x2a27/0x36f0
[  447.457543][ T6112]  ? __lock_acquire+0x683/0x2cf0
[  447.457577][ T6112]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  447.457619][ T6112]  ? __pfx_hlock_conflict+0x10/0x10
[  447.457628][ T6112]  ? __bfs+0x153/0x290
[  447.457641][ T6112]  ? __pfx_hlock_conflict+0x10/0x10
[  447.457663][ T6112]  ? lockdep_unlock+0x5d/0xd0
[  447.457674][ T6112]  ? __lock_acquire+0x13e8/0x2cf0
[  447.457705][ T6112]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  447.457721][ T6112]  do_writepages+0x338/0x560
[  447.457743][ T6112]  ? do_raw_spin_unlock+0x4d/0x210
[  447.457759][ T6112]  filemap_fdatawrite+0x1e9/0x2f0
[  447.457776][ T6112]  ? __pfx_filemap_fdatawrite+0x10/0x10
[  447.457817][ T6112]  ? do_raw_spin_unlock+0x4d/0x210
[  447.457833][ T6112]  f2fs_sync_dirty_inodes+0x30e/0x830
[  447.457861][ T6112]  f2fs_write_checkpoint+0xa3d/0x2710
[  447.457899][ T6112]  ? __pfx_f2fs_write_checkpoint+0x10/0x10
[  447.457951][ T6112]  kill_f2fs_super+0x2dd/0x700
[  447.457975][ T6112]  ? __pfx_kill_f2fs_super+0x10/0x10
[  447.458000][ T6112]  ? call_rcu+0x64b/0x8b0
[  447.458011][ T6112]  ? lockdep_hardirqs_on+0x7a/0x110
[  447.458034][ T6112]  deactivate_locked_super+0xbc/0x110
[  447.458054][ T6112]  cleanup_mnt+0x3d3/0x460
[  447.458071][ T6112]  task_work_run+0x1d9/0x270
[  447.458091][ T6112]  ? __pfx_task_work_run+0x10/0x10
[  447.458115][ T6112]  exit_to_user_mode_loop+0x1fa/0x730
[  447.458130][ T6112]  ? rcu_is_watching+0x15/0xb0
[  447.458173][ T6112]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  447.458187][ T6112]  do_syscall_64+0x353/0x580
[  447.458200][ T6112]  ? trace_irq_disable+0x3b/0x140
[  447.458220][ T6112]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  447.458232][ T6112] RIP: 0033:0x7fe6d639f257
[  447.458246][ T6112] 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
[  447.458256][ T6112] RSP: 002b:00007ffc1f486698 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
[  447.458270][ T6112] RAX: 0000000000000000 RBX: 00007fe6d643445c RCX: 00007fe6d639f257
[  447.458278][ T6112] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffc1f486750
[  447.458285][ T6112] RBP: 00007ffc1f486750 R08: 00007ffc1f487750 R09: 00000000ffffffff
[  447.458293][ T6112] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc1f4877e0
[  447.458301][ T6112] R13: 00007fe6d643445c R14: 000000000006d34f R15: 00007ffc1f487820
[  447.458321][ T6112]  </TASK>
[  447.642691][T10345] loop0: detected capacity change from 0 to 40427
[  447.652927][T10345] F2FS-fs (loop0): Small segment_count (9 < 1 * 24)
[  447.655745][T10345] F2FS-fs (loop0): Can't find valid F2FS filesystem in 1th superblock
[  447.660831][ T6112] F2FS-fs (loop1): Stopped filesystem due to reason: 3
[  447.702142][T10349] loop2: detected capacity change from 0 to 40427
[  447.711398][T10349] F2FS-fs (loop2): Small segment_count (9 < 1 * 24)
[  447.721176][T10349] F2FS-fs (loop2): Can't find valid F2FS filesystem in 1th superblock
[  447.776047][T10345] F2FS-fs (loop0): f2fs_recover_fsync_data: recovery fsync data, check_only: 0
[  447.790511][T10345] F2FS-fs (loop0): Try to recover 1th superblock, ret: 0
[  447.793486][T10345] F2FS-fs (loop0): Mounted with checkpoint version = 48b305e5
[  447.834470][T10349] F2FS-fs (loop2): f2fs_recover_fsync_data: recovery fsync data, check_only: 0
[  447.843955][T10349] F2FS-fs (loop2): Try to recover 1th superblock, ret: 0
[  447.846873][T10349] F2FS-fs (loop2): Mounted with checkpoint version = 48b305e5
[  447.853990][ T6110] CPU: 0 UID: 0 PID: 6110 Comm: syz-executor Not tainted syzkaller #0 PREEMPT(full) 
[  447.854009][ T6110] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
[  447.854018][ T6110] Call Trace:
[  447.854024][ T6110]  <TASK>
[  447.854030][ T6110]  dump_stack_lvl+0xe8/0x150
[  447.854056][ T6110]  f2fs_stop_checkpoint+0x3f6/0x5d0
[  447.854077][ T6110]  f2fs_write_end_io+0x124b/0x1710
[  447.854110][ T6110]  __submit_merged_bio+0x258/0x6a0
[  447.854124][ T6110]  ? rcu_is_watching+0x15/0xb0
[  447.854148][ T6110]  __submit_merged_write_cond+0x3c9/0x4e0
[  447.854170][ T6110]  ? __pfx___submit_merged_write_cond+0x10/0x10
[  447.854235][ T6110]  f2fs_write_data_pages+0x2a27/0x36f0
[  447.854279][ T6110]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  447.854328][ T6110]  ? __pfx_hlock_conflict+0x10/0x10
[  447.854339][ T6110]  ? __bfs+0x153/0x290
[  447.854353][ T6110]  ? __pfx_hlock_conflict+0x10/0x10
[  447.854377][ T6110]  ? lockdep_unlock+0x5d/0xd0
[  447.854390][ T6110]  ? __lock_acquire+0x13e8/0x2cf0
[  447.854452][ T6110]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  447.854472][ T6110]  do_writepages+0x338/0x560
[  447.854497][ T6110]  ? do_raw_spin_unlock+0x4d/0x210
[  447.854515][ T6110]  filemap_fdatawrite+0x1e9/0x2f0
[  447.854535][ T6110]  ? __pfx_filemap_fdatawrite+0x10/0x10
[  447.854584][ T6110]  ? do_raw_spin_unlock+0x4d/0x210
[  447.854601][ T6110]  f2fs_sync_dirty_inodes+0x30e/0x830
[  447.854629][ T6110]  f2fs_write_checkpoint+0xa3d/0x2710
[  447.854671][ T6110]  ? __pfx_f2fs_write_checkpoint+0x10/0x10
[  447.854724][ T6110]  kill_f2fs_super+0x2dd/0x700
[  447.854746][ T6110]  ? __pfx_kill_f2fs_super+0x10/0x10
[  447.854770][ T6110]  ? call_rcu+0x64b/0x8b0
[  447.854782][ T6110]  ? lockdep_hardirqs_on+0x7a/0x110
[  447.854804][ T6110]  deactivate_locked_super+0xbc/0x110
[  447.854823][ T6110]  cleanup_mnt+0x3d3/0x460
[  447.854838][ T6110]  task_work_run+0x1d9/0x270
[  447.854857][ T6110]  ? __pfx_task_work_run+0x10/0x10
[  447.854879][ T6110]  exit_to_user_mode_loop+0x1fa/0x730
[  447.854893][ T6110]  ? rcu_is_watching+0x15/0xb0
[  447.854908][ T6110]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  447.854920][ T6110]  do_syscall_64+0x353/0x580
[  447.854932][ T6110]  ? trace_irq_disable+0x3b/0x140
[  447.854950][ T6110]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  447.854962][ T6110] RIP: 0033:0x7f730e59f257
[  447.854975][ T6110] 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
[  447.854986][ T6110] RSP: 002b:00007ffe088e1548 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
[  447.855000][ T6110] RAX: 0000000000000000 RBX: 00007f730e63445c RCX: 00007f730e59f257
[  447.855008][ T6110] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffe088e1600
[  447.855015][ T6110] RBP: 00007ffe088e1600 R08: 00007ffe088e2600 R09: 00000000ffffffff
[  447.855023][ T6110] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffe088e2690
[  447.855031][ T6110] R13: 00007f730e63445c R14: 000000000006d4e1 R15: 00007ffe088e26d0
[  447.855049][ T6110]  </TASK>
[  447.982946][   T33] kauditd_printk_skb: 24 callbacks suppressed
[  447.982964][   T33] audit: type=1800 audit(1785886374.285:2002): pid=10349 uid=0 auid=4294967295 ses=4294967295 subj=unconfined op=collect_data cause=failed(directio) comm="syz.2.1017" name="file1" dev="loop2" ino=10 res=0 errno=0
[  448.000810][   T33] audit: type=1800 audit(1785886374.305:2003): pid=10354 uid=0 auid=4294967295 ses=4294967295 subj=unconfined op=collect_data cause=failed(directio) comm="syz.2.1017" name="file1" dev="loop2" ino=10 res=0 errno=0
[  448.042261][T10349] bio_check_eod: 39 callbacks suppressed
[  448.042284][T10349] syz.2.1017: attempt to access beyond end of device
[  448.042284][T10349] loop2: rw=2049, sector=53248, nr_sectors = 976 limit=40427
[  448.051269][T10349] syz.2.1017: attempt to access beyond end of device
[  448.051269][T10349] loop2: rw=8423425, sector=54224, nr_sectors = 8 limit=40427
[  448.060251][ T6110] F2FS-fs (loop0): Stopped filesystem due to reason: 3
[  448.080449][ T6116] syz-executor: attempt to access beyond end of device
[  448.080449][ T6116] loop2: rw=2049, sector=45096, nr_sectors = 8 limit=40427
[  448.095348][ T6116] CPU: 1 UID: 0 PID: 6116 Comm: syz-executor Not tainted syzkaller #0 PREEMPT(full) 
[  448.095368][ T6116] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
[  448.095376][ T6116] Call Trace:
[  448.095382][ T6116]  <TASK>
[  448.095387][ T6116]  dump_stack_lvl+0xe8/0x150
[  448.095411][ T6116]  f2fs_stop_checkpoint+0x3f6/0x5d0
[  448.095466][ T6116]  f2fs_write_end_io+0x124b/0x1710
[  448.095497][ T6116]  __submit_merged_bio+0x258/0x6a0
[  448.095512][ T6116]  ? rcu_is_watching+0x15/0xb0
[  448.095540][ T6116]  __submit_merged_write_cond+0x3c9/0x4e0
[  448.095561][ T6116]  ? __pfx___submit_merged_write_cond+0x10/0x10
[  448.095593][ T6116]  f2fs_write_data_pages+0x2a27/0x36f0
[  448.095633][ T6116]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  448.095677][ T6116]  ? __pfx_hlock_conflict+0x10/0x10
[  448.095688][ T6116]  ? __bfs+0x153/0x290
[  448.095702][ T6116]  ? __pfx_hlock_conflict+0x10/0x10
[  448.095724][ T6116]  ? lockdep_unlock+0x5d/0xd0
[  448.095735][ T6116]  ? __lock_acquire+0x13e8/0x2cf0
[  448.095770][ T6116]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  448.095788][ T6116]  do_writepages+0x338/0x560
[  448.095811][ T6116]  ? do_raw_spin_unlock+0x4d/0x210
[  448.095827][ T6116]  filemap_fdatawrite+0x1e9/0x2f0
[  448.095847][ T6116]  ? __pfx_filemap_fdatawrite+0x10/0x10
[  448.095896][ T6116]  ? do_raw_spin_unlock+0x4d/0x210
[  448.095911][ T6116]  f2fs_sync_dirty_inodes+0x30e/0x830
[  448.095938][ T6116]  f2fs_write_checkpoint+0xa3d/0x2710
[  448.095979][ T6116]  ? __pfx_f2fs_write_checkpoint+0x10/0x10
[  448.096034][ T6116]  kill_f2fs_super+0x2dd/0x700
[  448.096057][ T6116]  ? __pfx_kill_f2fs_super+0x10/0x10
[  448.096083][ T6116]  ? call_rcu+0x64b/0x8b0
[  448.096094][ T6116]  ? lockdep_hardirqs_on+0x7a/0x110
[  448.096118][ T6116]  deactivate_locked_super+0xbc/0x110
[  448.096161][ T6116]  cleanup_mnt+0x3d3/0x460
[  448.096177][ T6116]  task_work_run+0x1d9/0x270
[  448.096197][ T6116]  ? __pfx_task_work_run+0x10/0x10
[  448.096222][ T6116]  exit_to_user_mode_loop+0x1fa/0x730
[  448.096238][ T6116]  ? rcu_is_watching+0x15/0xb0
[  448.096253][ T6116]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  448.096267][ T6116]  do_syscall_64+0x353/0x580
[  448.096281][ T6116]  ? trace_irq_disable+0x3b/0x140
[  448.096299][ T6116]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  448.096311][ T6116] RIP: 0033:0x7f270e19f257
[  448.096325][ T6116] 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
[  448.096336][ T6116] RSP: 002b:00007ffe3f534648 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
[  448.096349][ T6116] RAX: 0000000000000000 RBX: 00007f270e23445c RCX: 00007f270e19f257
[  448.096357][ T6116] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffe3f534700
[  448.096365][ T6116] RBP: 00007ffe3f534700 R08: 00007ffe3f535700 R09: 00000000ffffffff
[  448.096374][ T6116] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffe3f535790
[  448.096382][ T6116] R13: 00007f270e23445c R14: 000000000006d5c5 R15: 00007ffe3f5357d0
[  448.096404][ T6116]  </TASK>
[  448.097191][ T6116] F2FS-fs (loop2): Stopped filesystem due to reason: 3
[  448.512958][T10356] loop1: detected capacity change from 0 to 40427
[  448.524509][T10356] F2FS-fs (loop1): Small segment_count (9 < 1 * 24)
[  448.533051][T10356] F2FS-fs (loop1): Can't find valid F2FS filesystem in 1th superblock
[  448.601402][T10356] F2FS-fs (loop1): f2fs_recover_fsync_data: recovery fsync data, check_only: 0
[  448.609832][T10356] F2FS-fs (loop1): Try to recover 1th superblock, ret: 0
[  448.612897][T10356] F2FS-fs (loop1): Mounted with checkpoint version = 48b305e5
[  448.619721][   T33] audit: type=1800 audit(1785886374.925:2004): pid=10356 uid=0 auid=4294967295 ses=4294967295 subj=unconfined op=collect_data cause=failed(directio) comm="syz.1.1018" name="file1" dev="loop1" ino=10 res=0 errno=0
[  448.637574][   T33] audit: type=1800 audit(1785886374.925:2005): pid=10356 uid=0 auid=4294967295 ses=4294967295 subj=unconfined op=collect_data cause=failed(directio) comm="syz.1.1018" name="file1" dev="loop1" ino=10 res=0 errno=0
[  448.644382][T10356] syz.1.1018: attempt to access beyond end of device
[  448.644382][T10356] loop1: rw=2049, sector=53248, nr_sectors = 976 limit=40427
[  448.659628][T10356] syz.1.1018: attempt to access beyond end of device
[  448.659628][T10356] loop1: rw=8423425, sector=54224, nr_sectors = 8 limit=40427
[  448.684873][ T6112] syz-executor: attempt to access beyond end of device
[  448.684873][ T6112] loop1: rw=2049, sector=45096, nr_sectors = 8 limit=40427
[  448.691086][ T6112] CPU: 1 UID: 0 PID: 6112 Comm: syz-executor Not tainted syzkaller #0 PREEMPT(full) 
[  448.691099][ T6112] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
[  448.691104][ T6112] Call Trace:
[  448.691107][ T6112]  <TASK>
[  448.691111][ T6112]  dump_stack_lvl+0xe8/0x150
[  448.691126][ T6112]  f2fs_stop_checkpoint+0x3f6/0x5d0
[  448.691138][ T6112]  f2fs_write_end_io+0x124b/0x1710
[  448.691154][ T6112]  __submit_merged_bio+0x258/0x6a0
[  448.691163][ T6112]  ? rcu_is_watching+0x15/0xb0
[  448.691175][ T6112]  __submit_merged_write_cond+0x3c9/0x4e0
[  448.691187][ T6112]  ? __pfx___submit_merged_write_cond+0x10/0x10
[  448.691203][ T6112]  f2fs_write_data_pages+0x2a27/0x36f0
[  448.691213][ T6112]  ? __lock_acquire+0x683/0x2cf0
[  448.691234][ T6112]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  448.691258][ T6112]  ? __pfx_hlock_conflict+0x10/0x10
[  448.691264][ T6112]  ? __bfs+0x153/0x290
[  448.691273][ T6112]  ? __pfx_hlock_conflict+0x10/0x10
[  448.691285][ T6112]  ? lockdep_unlock+0x5d/0xd0
[  448.691293][ T6112]  ? __lock_acquire+0x13e8/0x2cf0
[  448.691310][ T6112]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  448.691320][ T6112]  do_writepages+0x338/0x560
[  448.691333][ T6112]  ? do_raw_spin_unlock+0x4d/0x210
[  448.691343][ T6112]  filemap_fdatawrite+0x1e9/0x2f0
[  448.691354][ T6112]  ? __pfx_filemap_fdatawrite+0x10/0x10
[  448.691377][ T6112]  ? do_raw_spin_unlock+0x4d/0x210
[  448.691386][ T6112]  f2fs_sync_dirty_inodes+0x30e/0x830
[  448.691455][ T6112]  f2fs_write_checkpoint+0xa3d/0x2710
[  448.691477][ T6112]  ? __pfx_f2fs_write_checkpoint+0x10/0x10
[  448.691505][ T6112]  kill_f2fs_super+0x2dd/0x700
[  448.691518][ T6112]  ? __pfx_kill_f2fs_super+0x10/0x10
[  448.691533][ T6112]  ? call_rcu+0x64b/0x8b0
[  448.691539][ T6112]  ? lockdep_hardirqs_on+0x7a/0x110
[  448.691553][ T6112]  deactivate_locked_super+0xbc/0x110
[  448.691564][ T6112]  cleanup_mnt+0x3d3/0x460
[  448.691574][ T6112]  task_work_run+0x1d9/0x270
[  448.691586][ T6112]  ? __pfx_task_work_run+0x10/0x10
[  448.691599][ T6112]  exit_to_user_mode_loop+0x1fa/0x730
[  448.691608][ T6112]  ? rcu_is_watching+0x15/0xb0
[  448.691618][ T6112]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  448.691626][ T6112]  do_syscall_64+0x353/0x580
[  448.691634][ T6112]  ? trace_irq_disable+0x3b/0x140
[  448.691646][ T6112]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  448.691653][ T6112] RIP: 0033:0x7fe6d639f257
[  448.691664][ T6112] 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
[  448.691674][ T6112] RSP: 002b:00007ffc1f486698 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
[  448.691687][ T6112] RAX: 0000000000000000 RBX: 00007fe6d643445c RCX: 00007fe6d639f257
[  448.691693][ T6112] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffc1f486750
[  448.691699][ T6112] RBP: 00007ffc1f486750 R08: 00007ffc1f487750 R09: 00000000ffffffff
[  448.691706][ T6112] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc1f4877e0
[  448.691712][ T6112] R13: 00007fe6d643445c R14: 000000000006d82f R15: 00007ffc1f487820
[  448.691730][ T6112]  </TASK>
[  448.694850][ T6112] F2FS-fs (loop1): Stopped filesystem due to reason: 3
[  448.767181][T10358] loop0: detected capacity change from 0 to 40427
[  448.809963][T10358] F2FS-fs (loop0): Small segment_count (9 < 1 * 24)
[  448.812188][T10358] F2FS-fs (loop0): Can't find valid F2FS filesystem in 1th superblock
[  448.838292][T10360] F2FS-fs (loop2): Small segment_count (9 < 1 * 24)
[  448.840893][T10360] F2FS-fs (loop2): Can't find valid F2FS filesystem in 1th superblock
[  448.895966][T10358] F2FS-fs (loop0): f2fs_recover_fsync_data: recovery fsync data, check_only: 0
[  448.902209][T10358] F2FS-fs (loop0): Try to recover 1th superblock, ret: 0
[  448.905186][T10358] F2FS-fs (loop0): Mounted with checkpoint version = 48b305e5
[  448.917720][   T33] audit: type=1800 audit(1785886375.215:2006): pid=10358 uid=0 auid=4294967295 ses=4294967295 subj=unconfined op=collect_data cause=failed(directio) comm="syz.0.1019" name="file1" dev="loop0" ino=10 res=0 errno=0
[  448.926429][   T33] audit: type=1800 audit(1785886375.235:2007): pid=10358 uid=0 auid=4294967295 ses=4294967295 subj=unconfined op=collect_data cause=failed(directio) comm="syz.0.1019" name="file1" dev="loop0" ino=10 res=0 errno=0
[  448.951620][T10358] syz.0.1019: attempt to access beyond end of device
[  448.951620][T10358] loop0: rw=2049, sector=53248, nr_sectors = 976 limit=40427
[  448.963970][T10360] F2FS-fs (loop2): f2fs_recover_fsync_data: recovery fsync data, check_only: 0
[  448.979312][T10358] syz.0.1019: attempt to access beyond end of device
[  448.979312][T10358] loop0: rw=8423425, sector=54224, nr_sectors = 8 limit=40427
[  448.989364][T10360] F2FS-fs (loop2): Try to recover 1th superblock, ret: 0
[  448.992755][T10360] F2FS-fs (loop2): Mounted with checkpoint version = 48b305e5
[  448.997700][   T33] audit: type=1800 audit(1785886375.295:2008): pid=10360 uid=0 auid=4294967295 ses=4294967295 subj=unconfined op=collect_data cause=failed(directio) comm="syz.2.1020" name="file1" dev="loop2" ino=10 res=0 errno=0
[  449.006078][ T6110] syz-executor: attempt to access beyond end of device
[  449.006078][ T6110] loop0: rw=2049, sector=45096, nr_sectors = 8 limit=40427
[  449.014520][ T6110] CPU: 0 UID: 0 PID: 6110 Comm: syz-executor Not tainted syzkaller #0 PREEMPT(full) 
[  449.014543][ T6110] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
[  449.014552][ T6110] Call Trace:
[  449.014559][ T6110]  <TASK>
[  449.014565][ T6110]  dump_stack_lvl+0xe8/0x150
[  449.014611][ T6110]  f2fs_stop_checkpoint+0x3f6/0x5d0
[  449.014635][ T6110]  f2fs_write_end_io+0x124b/0x1710
[  449.014667][ T6110]  __submit_merged_bio+0x258/0x6a0
[  449.014689][ T6110]  ? rcu_is_watching+0x15/0xb0
[  449.014711][ T6110]  __submit_merged_write_cond+0x3c9/0x4e0
[  449.014734][ T6110]  ? __pfx___submit_merged_write_cond+0x10/0x10
[  449.014762][ T6110]  f2fs_write_data_pages+0x2a27/0x36f0
[  449.014779][ T6110]  ? __lock_acquire+0x683/0x2cf0
[  449.014816][ T6110]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  449.014861][ T6110]  ? __pfx_hlock_conflict+0x10/0x10
[  449.014872][ T6110]  ? __bfs+0x153/0x290
[  449.014885][ T6110]  ? __pfx_hlock_conflict+0x10/0x10
[  449.014910][ T6110]  ? lockdep_unlock+0x5d/0xd0
[  449.014923][ T6110]  ? __lock_acquire+0x13e8/0x2cf0
[  449.014957][ T6110]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  449.014974][ T6110]  do_writepages+0x338/0x560
[  449.014999][ T6110]  ? do_raw_spin_unlock+0x4d/0x210
[  449.015016][ T6110]  filemap_fdatawrite+0x1e9/0x2f0
[  449.015036][ T6110]  ? __pfx_filemap_fdatawrite+0x10/0x10
[  449.015085][ T6110]  ? do_raw_spin_unlock+0x4d/0x210
[  449.015101][ T6110]  f2fs_sync_dirty_inodes+0x30e/0x830
[  449.015130][ T6110]  f2fs_write_checkpoint+0xa3d/0x2710
[  449.015171][ T6110]  ? __pfx_f2fs_write_checkpoint+0x10/0x10
[  449.015219][ T6110]  kill_f2fs_super+0x2dd/0x700
[  449.015244][ T6110]  ? __pfx_kill_f2fs_super+0x10/0x10
[  449.015269][ T6110]  ? call_rcu+0x64b/0x8b0
[  449.015281][ T6110]  ? lockdep_hardirqs_on+0x7a/0x110
[  449.015306][ T6110]  deactivate_locked_super+0xbc/0x110
[  449.015326][ T6110]  cleanup_mnt+0x3d3/0x460
[  449.015342][ T6110]  task_work_run+0x1d9/0x270
[  449.015363][ T6110]  ? __pfx_task_work_run+0x10/0x10
[  449.015387][ T6110]  exit_to_user_mode_loop+0x1fa/0x730
[  449.015428][ T6110]  ? rcu_is_watching+0x15/0xb0
[  449.015449][ T6110]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  449.015462][ T6110]  do_syscall_64+0x353/0x580
[  449.015476][ T6110]  ? trace_irq_disable+0x3b/0x140
[  449.015497][ T6110]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  449.015509][ T6110] RIP: 0033:0x7f730e59f257
[  449.015523][ T6110] 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
[  449.015533][ T6110] RSP: 002b:00007ffe088e1548 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
[  449.015547][ T6110] RAX: 0000000000000000 RBX: 00007f730e63445c RCX: 00007f730e59f257
[  449.015556][ T6110] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffe088e1600
[  449.015563][ T6110] RBP: 00007ffe088e1600 R08: 00007ffe088e2600 R09: 00000000ffffffff
[  449.015571][ T6110] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffe088e2690
[  449.015579][ T6110] R13: 00007f730e63445c R14: 000000000006d964 R15: 00007ffe088e26d0
[  449.015601][ T6110]  </TASK>
[  449.016699][   T33] audit: type=1800 audit(1785886375.315:2009): pid=10360 uid=0 auid=4294967295 ses=4294967295 subj=unconfined op=collect_data cause=failed(directio) comm="syz.2.1020" name="file1" dev="loop2" ino=10 res=0 errno=0
[  449.016845][ T6110] F2FS-fs (loop0): Stopped filesystem due to reason: 3
[  449.096384][T10360] syz.2.1020: attempt to access beyond end of device
[  449.096384][T10360] loop2: rw=2049, sector=53248, nr_sectors = 976 limit=40427
[  449.173480][ T6116] CPU: 0 UID: 0 PID: 6116 Comm: syz-executor Not tainted syzkaller #0 PREEMPT(full) 
[  449.173504][ T6116] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
[  449.173512][ T6116] Call Trace:
[  449.173519][ T6116]  <TASK>
[  449.173526][ T6116]  dump_stack_lvl+0xe8/0x150
[  449.173552][ T6116]  f2fs_stop_checkpoint+0x3f6/0x5d0
[  449.173573][ T6116]  f2fs_write_end_io+0x124b/0x1710
[  449.173604][ T6116]  __submit_merged_bio+0x258/0x6a0
[  449.173618][ T6116]  ? rcu_is_watching+0x15/0xb0
[  449.173641][ T6116]  __submit_merged_write_cond+0x3c9/0x4e0
[  449.173661][ T6116]  ? __pfx___submit_merged_write_cond+0x10/0x10
[  449.173698][ T6116]  f2fs_write_data_pages+0x2a27/0x36f0
[  449.173739][ T6116]  ? __pfx_f2fs_write_data_pages+0x10/0x10
2026/08/04 23:32:55 executed programs: 1012
[  449.173783][ T6116]  ? __pfx_hlock_conflict+0x10/0x10
[  449.173794][ T6116]  ? __bfs+0x153/0x290
[  449.173808][ T6116]  ? __pfx_hlock_conflict+0x10/0x10
[  449.173830][ T6116]  ? lockdep_unlock+0x5d/0xd0
[  449.173843][ T6116]  ? __lock_acquire+0x13e8/0x2cf0
[  449.173877][ T6116]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  449.173894][ T6116]  do_writepages+0x338/0x560
[  449.173918][ T6116]  ? do_raw_spin_unlock+0x4d/0x210
[  449.173934][ T6116]  filemap_fdatawrite+0x1e9/0x2f0
[  449.173954][ T6116]  ? __pfx_filemap_fdatawrite+0x10/0x10
[  449.173998][ T6116]  ? do_raw_spin_unlock+0x4d/0x210
[  449.174013][ T6116]  f2fs_sync_dirty_inodes+0x30e/0x830
[  449.174041][ T6116]  f2fs_write_checkpoint+0xa3d/0x2710
[  449.174100][ T6116]  ? __pfx_f2fs_write_checkpoint+0x10/0x10
[  449.174150][ T6116]  kill_f2fs_super+0x2dd/0x700
[  449.174173][ T6116]  ? __pfx_kill_f2fs_super+0x10/0x10
[  449.174196][ T6116]  ? call_rcu+0x64b/0x8b0
[  449.174207][ T6116]  ? lockdep_hardirqs_on+0x7a/0x110
[  449.174230][ T6116]  deactivate_locked_super+0xbc/0x110
[  449.174250][ T6116]  cleanup_mnt+0x3d3/0x460
[  449.174265][ T6116]  task_work_run+0x1d9/0x270
[  449.174286][ T6116]  ? __pfx_task_work_run+0x10/0x10
[  449.174309][ T6116]  exit_to_user_mode_loop+0x1fa/0x730
[  449.174325][ T6116]  ? rcu_is_watching+0x15/0xb0
[  449.174342][ T6116]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  449.174356][ T6116]  do_syscall_64+0x353/0x580
[  449.174370][ T6116]  ? trace_irq_disable+0x3b/0x140
[  449.174388][ T6116]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  449.174426][ T6116] RIP: 0033:0x7f270e19f257
[  449.174441][ T6116] 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
[  449.174452][ T6116] RSP: 002b:00007ffe3f534648 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
[  449.174467][ T6116] RAX: 0000000000000000 RBX: 00007f270e23445c RCX: 00007f270e19f257
[  449.174475][ T6116] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffe3f534700
[  449.174483][ T6116] RBP: 00007ffe3f534700 R08: 00007ffe3f535700 R09: 00000000ffffffff
[  449.174491][ T6116] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffe3f535790
[  449.174498][ T6116] R13: 00007f270e23445c R14: 000000000006d9c0 R15: 00007ffe3f5357d0
[  449.174519][ T6116]  </TASK>
[  449.177662][ T6116] F2FS-fs (loop2): Stopped filesystem due to reason: 3
[  449.582796][T10369] F2FS-fs (loop1): Small segment_count (9 < 1 * 24)
[  449.587202][T10369] F2FS-fs (loop1): Can't find valid F2FS filesystem in 1th superblock
[  449.680981][T10369] F2FS-fs (loop1): f2fs_recover_fsync_data: recovery fsync data, check_only: 0
[  449.697433][T10369] F2FS-fs (loop1): Try to recover 1th superblock, ret: 0
[  449.701166][T10369] F2FS-fs (loop1): Mounted with checkpoint version = 48b305e5
[  449.712024][   T33] audit: type=1800 audit(1785886376.015:2010): pid=10369 uid=0 auid=4294967295 ses=4294967295 subj=unconfined op=collect_data cause=failed(directio) comm="syz.1.1021" name="file1" dev="loop1" ino=10 res=0 errno=0
[  449.730378][   T33] audit: type=1800 audit(1785886376.035:2011): pid=10369 uid=0 auid=4294967295 ses=4294967295 subj=unconfined op=collect_data cause=failed(directio) comm="syz.1.1021" name="file1" dev="loop1" ino=10 res=0 errno=0
[  449.775781][ T6112] CPU: 1 UID: 0 PID: 6112 Comm: syz-executor Not tainted syzkaller #0 PREEMPT(full) 
[  449.775803][ T6112] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
[  449.775811][ T6112] Call Trace:
[  449.775818][ T6112]  <TASK>
[  449.775824][ T6112]  dump_stack_lvl+0xe8/0x150
[  449.775848][ T6112]  f2fs_stop_checkpoint+0x3f6/0x5d0
[  449.775897][ T6112]  f2fs_write_end_io+0x124b/0x1710
[  449.775938][ T6112]  __submit_merged_bio+0x258/0x6a0
[  449.775954][ T6112]  ? rcu_is_watching+0x15/0xb0
[  449.775976][ T6112]  __submit_merged_write_cond+0x3c9/0x4e0
[  449.775999][ T6112]  ? __pfx___submit_merged_write_cond+0x10/0x10
[  449.776031][ T6112]  f2fs_write_data_pages+0x2a27/0x36f0
[  449.776048][ T6112]  ? __lock_acquire+0x683/0x2cf0
[  449.776089][ T6112]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  449.776137][ T6112]  ? __pfx_hlock_conflict+0x10/0x10
[  449.776148][ T6112]  ? __bfs+0x153/0x290
[  449.776162][ T6112]  ? __pfx_hlock_conflict+0x10/0x10
[  449.776185][ T6112]  ? lockdep_unlock+0x5d/0xd0
[  449.776198][ T6112]  ? __lock_acquire+0x13e8/0x2cf0
[  449.776233][ T6112]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  449.776250][ T6112]  do_writepages+0x338/0x560
[  449.776272][ T6112]  ? do_raw_spin_unlock+0x4d/0x210
[  449.776288][ T6112]  filemap_fdatawrite+0x1e9/0x2f0
[  449.776306][ T6112]  ? __pfx_filemap_fdatawrite+0x10/0x10
[  449.776355][ T6112]  ? do_raw_spin_unlock+0x4d/0x210
[  449.776371][ T6112]  f2fs_sync_dirty_inodes+0x30e/0x830
[  449.776428][ T6112]  f2fs_write_checkpoint+0xa3d/0x2710
[  449.776472][ T6112]  ? __pfx_f2fs_write_checkpoint+0x10/0x10
[  449.776527][ T6112]  kill_f2fs_super+0x2dd/0x700
[  449.776551][ T6112]  ? __pfx_kill_f2fs_super+0x10/0x10
[  449.776577][ T6112]  ? call_rcu+0x64b/0x8b0
[  449.776588][ T6112]  ? lockdep_hardirqs_on+0x7a/0x110
[  449.776612][ T6112]  deactivate_locked_super+0xbc/0x110
[  449.776631][ T6112]  cleanup_mnt+0x3d3/0x460
[  449.776648][ T6112]  task_work_run+0x1d9/0x270
[  449.776669][ T6112]  ? __pfx_task_work_run+0x10/0x10
[  449.776694][ T6112]  exit_to_user_mode_loop+0x1fa/0x730
[  449.776710][ T6112]  ? rcu_is_watching+0x15/0xb0
[  449.776727][ T6112]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  449.776741][ T6112]  do_syscall_64+0x353/0x580
[  449.776754][ T6112]  ? trace_irq_disable+0x3b/0x140
[  449.776773][ T6112]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  449.776785][ T6112] RIP: 0033:0x7fe6d639f257
[  449.776797][ T6112] 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
[  449.776809][ T6112] RSP: 002b:00007ffc1f486698 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
[  449.776823][ T6112] RAX: 0000000000000000 RBX: 00007fe6d643445c RCX: 00007fe6d639f257
[  449.776831][ T6112] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffc1f486750
[  449.776839][ T6112] RBP: 00007ffc1f486750 R08: 00007ffc1f487750 R09: 00000000ffffffff
[  449.776847][ T6112] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc1f4877e0
[  449.776855][ T6112] R13: 00007fe6d643445c R14: 000000000006dc74 R15: 00007ffc1f487820
[  449.776877][ T6112]  </TASK>
[  449.799829][T10371] F2FS-fs (loop2): Small segment_count (9 < 1 * 24)
[  449.803025][ T6112] F2FS-fs (loop1): Stopped filesystem due to reason: 3
[  449.816381][T10371] F2FS-fs (loop2): Can't find valid F2FS filesystem in 1th superblock
[  450.042417][T10371] F2FS-fs (loop2): f2fs_recover_fsync_data: recovery fsync data, check_only: 0
[  450.051027][T10371] F2FS-fs (loop2): Try to recover 1th superblock, ret: 0
[  450.054063][T10371] F2FS-fs (loop2): Mounted with checkpoint version = 48b305e5
[  450.071635][T10373] F2FS-fs (loop0): Small segment_count (9 < 1 * 24)
[  450.091001][T10373] F2FS-fs (loop0): Can't find valid F2FS filesystem in 1th superblock
[  450.092702][ T6116] CPU: 0 UID: 0 PID: 6116 Comm: syz-executor Not tainted syzkaller #0 PREEMPT(full) 
[  450.092724][ T6116] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
[  450.092733][ T6116] Call Trace:
[  450.092741][ T6116]  <TASK>
[  450.092747][ T6116]  dump_stack_lvl+0xe8/0x150
[  450.092772][ T6116]  f2fs_stop_checkpoint+0x3f6/0x5d0
[  450.092794][ T6116]  f2fs_write_end_io+0x124b/0x1710
[  450.092826][ T6116]  __submit_merged_bio+0x258/0x6a0
[  450.092842][ T6116]  ? rcu_is_watching+0x15/0xb0
[  450.092864][ T6116]  __submit_merged_write_cond+0x3c9/0x4e0
[  450.092886][ T6116]  ? __pfx___submit_merged_write_cond+0x10/0x10
[  450.092917][ T6116]  f2fs_write_data_pages+0x2a27/0x36f0
[  450.092934][ T6116]  ? __lock_acquire+0x683/0x2cf0
[  450.092972][ T6116]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  450.093039][ T6116]  ? __pfx_hlock_conflict+0x10/0x10
[  450.093053][ T6116]  ? __bfs+0x153/0x290
[  450.093066][ T6116]  ? __pfx_hlock_conflict+0x10/0x10
[  450.093090][ T6116]  ? lockdep_unlock+0x5d/0xd0
[  450.093104][ T6116]  ? __lock_acquire+0x13e8/0x2cf0
[  450.093135][ T6116]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  450.093154][ T6116]  do_writepages+0x338/0x560
[  450.093178][ T6116]  ? do_raw_spin_unlock+0x4d/0x210
[  450.093195][ T6116]  filemap_fdatawrite+0x1e9/0x2f0
[  450.093215][ T6116]  ? __pfx_filemap_fdatawrite+0x10/0x10
[  450.093260][ T6116]  ? do_raw_spin_unlock+0x4d/0x210
[  450.093278][ T6116]  f2fs_sync_dirty_inodes+0x30e/0x830
[  450.093306][ T6116]  f2fs_write_checkpoint+0xa3d/0x2710
[  450.093344][ T6116]  ? __pfx_f2fs_write_checkpoint+0x10/0x10
[  450.093424][ T6116]  kill_f2fs_super+0x2dd/0x700
[  450.093448][ T6116]  ? __pfx_kill_f2fs_super+0x10/0x10
[  450.093473][ T6116]  ? call_rcu+0x64b/0x8b0
[  450.093485][ T6116]  ? lockdep_hardirqs_on+0x7a/0x110
[  450.093511][ T6116]  deactivate_locked_super+0xbc/0x110
[  450.093531][ T6116]  cleanup_mnt+0x3d3/0x460
[  450.093548][ T6116]  task_work_run+0x1d9/0x270
[  450.093570][ T6116]  ? __pfx_task_work_run+0x10/0x10
[  450.093594][ T6116]  exit_to_user_mode_loop+0x1fa/0x730
[  450.093610][ T6116]  ? rcu_is_watching+0x15/0xb0
[  450.093628][ T6116]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  450.093641][ T6116]  do_syscall_64+0x353/0x580
[  450.093654][ T6116]  ? trace_irq_disable+0x3b/0x140
[  450.093679][ T6116]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  450.093693][ T6116] RIP: 0033:0x7f270e19f257
[  450.093706][ T6116] 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
[  450.093715][ T6116] RSP: 002b:00007ffe3f534648 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
[  450.093729][ T6116] RAX: 0000000000000000 RBX: 00007f270e23445c RCX: 00007f270e19f257
[  450.093737][ T6116] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffe3f534700
[  450.093744][ T6116] RBP: 00007ffe3f534700 R08: 00007ffe3f535700 R09: 00000000ffffffff
[  450.093750][ T6116] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffe3f535790
[  450.093757][ T6116] R13: 00007f270e23445c R14: 000000000006ddab R15: 00007ffe3f5357d0
[  450.093780][ T6116]  </TASK>
[  450.097114][ T6116] F2FS-fs (loop2): Stopped filesystem due to reason: 3
[  450.343802][T10373] F2FS-fs (loop0): f2fs_recover_fsync_data: recovery fsync data, check_only: 0
[  450.351935][T10373] F2FS-fs (loop0): Try to recover 1th superblock, ret: 0
[  450.354981][T10373] F2FS-fs (loop0): Mounted with checkpoint version = 48b305e5
[  450.375137][ T6110] CPU: 1 UID: 0 PID: 6110 Comm: syz-executor Not tainted syzkaller #0 PREEMPT(full) 
[  450.375156][ T6110] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
[  450.375164][ T6110] Call Trace:
[  450.375170][ T6110]  <TASK>
[  450.375199][ T6110]  dump_stack_lvl+0xe8/0x150
[  450.375224][ T6110]  f2fs_stop_checkpoint+0x3f6/0x5d0
[  450.375245][ T6110]  f2fs_write_end_io+0x124b/0x1710
[  450.375277][ T6110]  __submit_merged_bio+0x258/0x6a0
[  450.375292][ T6110]  ? rcu_is_watching+0x15/0xb0
[  450.375314][ T6110]  __submit_merged_write_cond+0x3c9/0x4e0
[  450.375336][ T6110]  ? __pfx___submit_merged_write_cond+0x10/0x10
[  450.375368][ T6110]  f2fs_write_data_pages+0x2a27/0x36f0
[  450.375438][ T6110]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  450.375487][ T6110]  ? __pfx_hlock_conflict+0x10/0x10
[  450.375498][ T6110]  ? __bfs+0x153/0x290
[  450.375513][ T6110]  ? __pfx_hlock_conflict+0x10/0x10
[  450.375537][ T6110]  ? lockdep_unlock+0x5d/0xd0
[  450.375550][ T6110]  ? __lock_acquire+0x13e8/0x2cf0
[  450.375585][ T6110]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  450.375602][ T6110]  do_writepages+0x338/0x560
[  450.375627][ T6110]  ? do_raw_spin_unlock+0x4d/0x210
[  450.375645][ T6110]  filemap_fdatawrite+0x1e9/0x2f0
[  450.375664][ T6110]  ? __pfx_filemap_fdatawrite+0x10/0x10
[  450.375713][ T6110]  ? do_raw_spin_unlock+0x4d/0x210
[  450.375730][ T6110]  f2fs_sync_dirty_inodes+0x30e/0x830
[  450.375758][ T6110]  f2fs_write_checkpoint+0xa3d/0x2710
[  450.375799][ T6110]  ? __pfx_f2fs_write_checkpoint+0x10/0x10
[  450.375853][ T6110]  kill_f2fs_super+0x2dd/0x700
[  450.375877][ T6110]  ? __pfx_kill_f2fs_super+0x10/0x10
[  450.375903][ T6110]  ? call_rcu+0x64b/0x8b0
[  450.375915][ T6110]  ? lockdep_hardirqs_on+0x7a/0x110
[  450.375940][ T6110]  deactivate_locked_super+0xbc/0x110
[  450.375958][ T6110]  cleanup_mnt+0x3d3/0x460
[  450.375980][ T6110]  task_work_run+0x1d9/0x270
[  450.376001][ T6110]  ? __pfx_task_work_run+0x10/0x10
[  450.376026][ T6110]  exit_to_user_mode_loop+0x1fa/0x730
[  450.376041][ T6110]  ? rcu_is_watching+0x15/0xb0
[  450.376059][ T6110]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  450.376072][ T6110]  do_syscall_64+0x353/0x580
[  450.376085][ T6110]  ? trace_irq_disable+0x3b/0x140
[  450.376105][ T6110]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  450.376117][ T6110] RIP: 0033:0x7f730e59f257
[  450.376129][ T6110] 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
[  450.376139][ T6110] RSP: 002b:00007ffe088e1548 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
[  450.376152][ T6110] RAX: 0000000000000000 RBX: 00007f730e63445c RCX: 00007f730e59f257
[  450.376160][ T6110] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffe088e1600
[  450.376167][ T6110] RBP: 00007ffe088e1600 R08: 00007ffe088e2600 R09: 00000000ffffffff
[  450.376175][ T6110] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffe088e2690
[  450.376182][ T6110] R13: 00007f730e63445c R14: 000000000006deca R15: 00007ffe088e26d0
[  450.376204][ T6110]  </TASK>
[  450.377241][ T6110] F2FS-fs (loop0): Stopped filesystem due to reason: 3
[  450.543185][T10379] F2FS-fs (loop1): Small segment_count (9 < 1 * 24)
[  450.548302][T10379] F2FS-fs (loop1): Can't find valid F2FS filesystem in 1th superblock
[  450.617449][T10379] F2FS-fs (loop1): f2fs_recover_fsync_data: recovery fsync data, check_only: 0
[  450.632034][T10379] F2FS-fs (loop1): Try to recover 1th superblock, ret: 0
[  450.635218][T10379] F2FS-fs (loop1): Mounted with checkpoint version = 48b305e5
[  450.682371][ T6112] CPU: 0 UID: 0 PID: 6112 Comm: syz-executor Not tainted syzkaller #0 PREEMPT(full) 
[  450.682422][ T6112] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
[  450.682428][ T6112] Call Trace:
[  450.682433][ T6112]  <TASK>
[  450.682438][ T6112]  dump_stack_lvl+0xe8/0x150
[  450.682454][ T6112]  f2fs_stop_checkpoint+0x3f6/0x5d0
[  450.682466][ T6112]  f2fs_write_end_io+0x124b/0x1710
[  450.682485][ T6112]  __submit_merged_bio+0x258/0x6a0
[  450.682493][ T6112]  ? rcu_is_watching+0x15/0xb0
[  450.682506][ T6112]  __submit_merged_write_cond+0x3c9/0x4e0
[  450.682519][ T6112]  ? __pfx___submit_merged_write_cond+0x10/0x10
[  450.682535][ T6112]  f2fs_write_data_pages+0x2a27/0x36f0
[  450.682545][ T6112]  ? __lock_acquire+0x683/0x2cf0
[  450.682566][ T6112]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  450.682589][ T6112]  ? __pfx_hlock_conflict+0x10/0x10
[  450.682595][ T6112]  ? __bfs+0x153/0x290
[  450.682603][ T6112]  ? __pfx_hlock_conflict+0x10/0x10
[  450.682615][ T6112]  ? lockdep_unlock+0x5d/0xd0
[  450.682622][ T6112]  ? __lock_acquire+0x13e8/0x2cf0
[  450.682640][ T6112]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  450.682649][ T6112]  do_writepages+0x338/0x560
[  450.682669][ T6112]  ? do_raw_spin_unlock+0x4d/0x210
[  450.682683][ T6112]  filemap_fdatawrite+0x1e9/0x2f0
[  450.682700][ T6112]  ? __pfx_filemap_fdatawrite+0x10/0x10
[  450.682741][ T6112]  ? do_raw_spin_unlock+0x4d/0x210
[  450.682756][ T6112]  f2fs_sync_dirty_inodes+0x30e/0x830
[  450.682783][ T6112]  f2fs_write_checkpoint+0xa3d/0x2710
[  450.682819][ T6112]  ? __pfx_f2fs_write_checkpoint+0x10/0x10
[  450.682846][ T6112]  kill_f2fs_super+0x2dd/0x700
[  450.682859][ T6112]  ? __pfx_kill_f2fs_super+0x10/0x10
[  450.682873][ T6112]  ? call_rcu+0x64b/0x8b0
[  450.682880][ T6112]  ? lockdep_hardirqs_on+0x7a/0x110
[  450.682894][ T6112]  deactivate_locked_super+0xbc/0x110
[  450.682906][ T6112]  cleanup_mnt+0x3d3/0x460
[  450.682915][ T6112]  task_work_run+0x1d9/0x270
[  450.682928][ T6112]  ? __pfx_task_work_run+0x10/0x10
[  450.682941][ T6112]  exit_to_user_mode_loop+0x1fa/0x730
[  450.682951][ T6112]  ? rcu_is_watching+0x15/0xb0
[  450.682961][ T6112]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  450.682969][ T6112]  do_syscall_64+0x353/0x580
[  450.682977][ T6112]  ? trace_irq_disable+0x3b/0x140
[  450.683016][ T6112]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  450.683028][ T6112] RIP: 0033:0x7fe6d639f257
[  450.683037][ T6112] 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
[  450.683045][ T6112] RSP: 002b:00007ffc1f486698 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
[  450.683054][ T6112] RAX: 0000000000000000 RBX: 00007fe6d643445c RCX: 00007fe6d639f257
[  450.683059][ T6112] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffc1f486750
[  450.683064][ T6112] RBP: 00007ffc1f486750 R08: 00007ffc1f487750 R09: 00000000ffffffff
[  450.683069][ T6112] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc1f4877e0
[  450.683074][ T6112] R13: 00007fe6d643445c R14: 000000000006dff7 R15: 00007ffc1f487820
[  450.683085][ T6112]  </TASK>
[  450.683123][ T6112] F2FS-fs (loop1): Stopped filesystem due to reason: 3
[  450.804142][T10383] F2FS-fs (loop2): Small segment_count (9 < 1 * 24)
[  450.817314][T10383] F2FS-fs (loop2): Can't find valid F2FS filesystem in 1th superblock
[  450.880964][T10383] F2FS-fs (loop2): f2fs_recover_fsync_data: recovery fsync data, check_only: 0

[host] Command execution timed out after 6m0s