with checkpoint version = 48b305e5
[  426.655503][T10198] F2FS-fs (loop0): f2fs_recover_fsync_data: recovery fsync data, check_only: 0
[  426.661545][T10200] bio_check_eod: 29 callbacks suppressed
[  426.661566][T10200] syz.2.1009: attempt to access beyond end of device
[  426.661566][T10200] loop2: rw=2049, sector=53248, nr_sectors = 976 limit=40427
[  426.680740][T10198] F2FS-fs (loop0): Try to recover 1th superblock, ret: 0
[  426.683235][T10198] F2FS-fs (loop0): Mounted with checkpoint version = 48b305e5
[  426.688574][T10200] syz.2.1009: attempt to access beyond end of device
[  426.688574][T10200] loop2: rw=8423425, sector=54224, nr_sectors = 8 limit=40427
[  426.702595][T10198] syz.0.1008: attempt to access beyond end of device
[  426.702595][T10198] loop0: rw=2049, sector=53248, nr_sectors = 976 limit=40427
[  426.711655][T10198] syz.0.1008: attempt to access beyond end of device
[  426.711655][T10198] loop0: rw=8423425, sector=54224, nr_sectors = 8 limit=40427
[  426.723820][ T6047] syz-executor: attempt to access beyond end of device
[  426.723820][ T6047] loop2: rw=2049, sector=45096, nr_sectors = 8 limit=40427
[  426.736485][ T6042] syz-executor: attempt to access beyond end of device
[  426.736485][ T6042] loop0: rw=2049, sector=45096, nr_sectors = 8 limit=40427
[  426.749035][ T6047] CPU: 0 UID: 0 PID: 6047 Comm: syz-executor Not tainted syzkaller #0 PREEMPT(full) 
[  426.749062][ T6047] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
[  426.749072][ T6047] Call Trace:
[  426.749079][ T6047]  <TASK>
[  426.749087][ T6047]  dump_stack_lvl+0xe8/0x150
[  426.749116][ T6047]  f2fs_stop_checkpoint+0x3f6/0x5d0
[  426.749141][ T6047]  f2fs_write_end_io+0x124b/0x1710
[  426.749178][ T6047]  __submit_merged_bio+0x258/0x6a0
[  426.749204][ T6047]  ? rcu_is_watching+0x15/0xb0
[  426.749231][ T6047]  __submit_merged_write_cond+0x3c9/0x4e0
[  426.749256][ T6047]  ? __pfx___submit_merged_write_cond+0x10/0x10
[  426.749323][ T6047]  f2fs_write_data_pages+0x2a27/0x36f0
[  426.749344][ T6047]  ? __lock_acquire+0x683/0x2cf0
[  426.749389][ T6047]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  426.749416][ T6047]  ? __pfx___css_rstat_updated+0x10/0x10
[  426.749455][ T6047]  ? __pfx_hlock_conflict+0x10/0x10
[  426.749468][ T6047]  ? __bfs+0x153/0x290
[  426.749485][ T6047]  ? __pfx_hlock_conflict+0x10/0x10
[  426.749511][ T6047]  ? lockdep_unlock+0x5d/0xd0
[  426.749548][ T6047]  ? __lock_acquire+0x13e8/0x2cf0
[  426.749587][ T6047]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  426.749607][ T6047]  do_writepages+0x338/0x560
[  426.749636][ T6047]  ? do_raw_spin_unlock+0x4d/0x210
[  426.749655][ T6047]  filemap_fdatawrite+0x1e9/0x2f0
[  426.749678][ T6047]  ? __pfx_filemap_fdatawrite+0x10/0x10
[  426.749730][ T6047]  ? do_raw_spin_unlock+0x4d/0x210
[  426.749750][ T6047]  f2fs_sync_dirty_inodes+0x30e/0x830
[  426.749781][ T6047]  f2fs_write_checkpoint+0xa3d/0x2710
[  426.749826][ T6047]  ? __pfx_f2fs_write_checkpoint+0x10/0x10
[  426.749887][ T6047]  kill_f2fs_super+0x2dd/0x700
[  426.749913][ T6047]  ? __pfx_kill_f2fs_super+0x10/0x10
[  426.749942][ T6047]  ? call_rcu+0x64b/0x8b0
[  426.749955][ T6047]  ? lockdep_hardirqs_on+0x7a/0x110
[  426.749979][ T6047]  deactivate_locked_super+0xbc/0x110
[  426.750001][ T6047]  cleanup_mnt+0x3d3/0x460
[  426.750021][ T6047]  task_work_run+0x1d9/0x270
[  426.750042][ T6047]  ? __pfx_task_work_run+0x10/0x10
[  426.750064][ T6047]  exit_to_user_mode_loop+0x1fa/0x730
[  426.750081][ T6047]  ? rcu_is_watching+0x15/0xb0
[  426.750098][ T6047]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  426.750112][ T6047]  do_syscall_64+0x353/0x580
[  426.750127][ T6047]  ? trace_irq_disable+0x3b/0x140
[  426.750147][ T6047]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  426.750160][ T6047] RIP: 0033:0x7f5458f9f257
[  426.750176][ T6047] 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
[  426.750188][ T6047] RSP: 002b:00007ffc648103f8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
[  426.750212][ T6047] RAX: 0000000000000000 RBX: 00007f545903445c RCX: 00007f5458f9f257
[  426.750220][ T6047] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffc648104b0
[  426.750227][ T6047] RBP: 00007ffc648104b0 R08: 00007ffc648114b0 R09: 00000000ffffffff
[  426.750237][ T6047] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc64811540
[  426.750244][ T6047] R13: 00007f545903445c R14: 000000000006825b R15: 00007ffc64811580
[  426.750263][ T6047]  </TASK>
[  426.877407][ T6042] CPU: 1 UID: 0 PID: 6042 Comm: syz-executor Not tainted syzkaller #0 PREEMPT(full) 
[  426.877431][ T6042] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
[  426.877439][ T6042] Call Trace:
[  426.877446][ T6042]  <TASK>
[  426.877452][ T6042]  dump_stack_lvl+0xe8/0x150
[  426.877476][ T6042]  f2fs_stop_checkpoint+0x3f6/0x5d0
[  426.877497][ T6042]  f2fs_write_end_io+0x124b/0x1710
[  426.877527][ T6042]  __submit_merged_bio+0x258/0x6a0
[  426.877541][ T6042]  ? rcu_is_watching+0x15/0xb0
[  426.877563][ T6042]  __submit_merged_write_cond+0x3c9/0x4e0
[  426.877582][ T6042]  ? __pfx___submit_merged_write_cond+0x10/0x10
[  426.877612][ T6042]  f2fs_write_data_pages+0x2a27/0x36f0
[  426.877649][ T6042]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  426.877693][ T6042]  ? __pfx_hlock_conflict+0x10/0x10
[  426.877703][ T6042]  ? __bfs+0x153/0x290
[  426.877716][ T6042]  ? __pfx_hlock_conflict+0x10/0x10
[  426.877738][ T6042]  ? lockdep_unlock+0x5d/0xd0
[  426.877750][ T6042]  ? __lock_acquire+0x13e8/0x2cf0
[  426.877782][ T6042]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  426.877799][ T6042]  do_writepages+0x338/0x560
[  426.877823][ T6042]  ? do_raw_spin_unlock+0x4d/0x210
[  426.877839][ T6042]  filemap_fdatawrite+0x1e9/0x2f0
[  426.877858][ T6042]  ? __pfx_filemap_fdatawrite+0x10/0x10
[  426.877902][ T6042]  ? do_raw_spin_unlock+0x4d/0x210
[  426.877917][ T6042]  f2fs_sync_dirty_inodes+0x30e/0x830
[  426.877944][ T6042]  f2fs_write_checkpoint+0xa3d/0x2710
[  426.877981][ T6042]  ? __pfx_f2fs_write_checkpoint+0x10/0x10
[  426.878031][ T6042]  kill_f2fs_super+0x2dd/0x700
[  426.878053][ T6042]  ? __pfx_kill_f2fs_super+0x10/0x10
[  426.878076][ T6042]  ? call_rcu+0x64b/0x8b0
[  426.878086][ T6042]  ? lockdep_hardirqs_on+0x7a/0x110
[  426.878108][ T6042]  deactivate_locked_super+0xbc/0x110
[  426.878127][ T6042]  cleanup_mnt+0x3d3/0x460
[  426.878144][ T6042]  task_work_run+0x1d9/0x270
[  426.878163][ T6042]  ? __pfx_task_work_run+0x10/0x10
[  426.878186][ T6042]  exit_to_user_mode_loop+0x1fa/0x730
[  426.878201][ T6042]  ? rcu_is_watching+0x15/0xb0
[  426.878218][ T6042]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  426.878231][ T6042]  do_syscall_64+0x353/0x580
[  426.878244][ T6042]  ? trace_irq_disable+0x3b/0x140
[  426.878263][ T6042]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  426.878311][ T6042] RIP: 0033:0x7f472c39f257
[  426.878325][ T6042] 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
[  426.878336][ T6042] RSP: 002b:00007ffccbd49c88 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
[  426.878350][ T6042] RAX: 0000000000000000 RBX: 00007f472c43445c RCX: 00007f472c39f257
[  426.878358][ T6042] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffccbd49d40
[  426.878372][ T6042] RBP: 00007ffccbd49d40 R08: 00007ffccbd4ad40 R09: 00000000ffffffff
[  426.878379][ T6042] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffccbd4add0
[  426.878386][ T6042] R13: 00007f472c43445c R14: 0000000000068270 R15: 00007ffccbd4ae10
[  426.878405][ T6042]  </TASK>
[  426.878411][ T6042] F2FS-fs (loop0): Stopped filesystem due to reason: 3
[  427.020514][ T6047] F2FS-fs (loop2): Stopped filesystem due to reason: 3
[  427.286659][T10208] F2FS-fs (loop1): Small segment_count (9 < 1 * 24)
[  427.296975][T10208] F2FS-fs (loop1): Can't find valid F2FS filesystem in 1th superblock
[  427.402986][T10208] F2FS-fs (loop1): f2fs_recover_fsync_data: recovery fsync data, check_only: 0
[  427.417071][T10208] F2FS-fs (loop1): Try to recover 1th superblock, ret: 0
[  427.425955][T10208] F2FS-fs (loop1): Mounted with checkpoint version = 48b305e5
[  427.461321][T10208] syz.1.1010: attempt to access beyond end of device
[  427.461321][T10208] loop1: rw=2049, sector=53248, nr_sectors = 976 limit=40427
[  427.473099][T10208] syz.1.1010: attempt to access beyond end of device
[  427.473099][T10208] loop1: rw=8423425, sector=54224, nr_sectors = 8 limit=40427
[  427.505764][ T6048] syz-executor: attempt to access beyond end of device
[  427.505764][ T6048] loop1: rw=2049, sector=45096, nr_sectors = 8 limit=40427
[  427.526922][ T6048] CPU: 0 UID: 0 PID: 6048 Comm: syz-executor Not tainted syzkaller #0 PREEMPT(full) 
[  427.526951][ T6048] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
[  427.526962][ T6048] Call Trace:
[  427.526970][ T6048]  <TASK>
[  427.526979][ T6048]  dump_stack_lvl+0xe8/0x150
[  427.527014][ T6048]  f2fs_stop_checkpoint+0x3f6/0x5d0
[  427.527041][ T6048]  f2fs_write_end_io+0x124b/0x1710
[  427.527079][ T6048]  __submit_merged_bio+0x258/0x6a0
[  427.527098][ T6048]  ? rcu_is_watching+0x15/0xb0
[  427.527125][ T6048]  __submit_merged_write_cond+0x3c9/0x4e0
[  427.527151][ T6048]  ? __pfx___submit_merged_write_cond+0x10/0x10
[  427.527187][ T6048]  f2fs_write_data_pages+0x2a27/0x36f0
[  427.527208][ T6048]  ? __lock_acquire+0x683/0x2cf0
[  427.527284][ T6048]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  427.527332][ T6048]  ? __pfx_hlock_conflict+0x10/0x10
[  427.527346][ T6048]  ? __bfs+0x153/0x290
[  427.527364][ T6048]  ? __pfx_hlock_conflict+0x10/0x10
[  427.527391][ T6048]  ? lockdep_unlock+0x5d/0xd0
[  427.527406][ T6048]  ? __lock_acquire+0x13e8/0x2cf0
[  427.527444][ T6048]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  427.527466][ T6048]  do_writepages+0x338/0x560
[  427.527495][ T6048]  ? do_raw_spin_unlock+0x4d/0x210
[  427.527515][ T6048]  filemap_fdatawrite+0x1e9/0x2f0
[  427.527538][ T6048]  ? __pfx_filemap_fdatawrite+0x10/0x10
[  427.527609][ T6048]  ? do_raw_spin_unlock+0x4d/0x210
[  427.527630][ T6048]  f2fs_sync_dirty_inodes+0x30e/0x830
[  427.527658][ T6048]  f2fs_write_checkpoint+0xa3d/0x2710
[  427.527699][ T6048]  ? __pfx_f2fs_write_checkpoint+0x10/0x10
[  427.527758][ T6048]  kill_f2fs_super+0x2dd/0x700
[  427.527787][ T6048]  ? __pfx_kill_f2fs_super+0x10/0x10
[  427.527817][ T6048]  ? call_rcu+0x64b/0x8b0
[  427.527832][ T6048]  ? lockdep_hardirqs_on+0x7a/0x110
[  427.527861][ T6048]  deactivate_locked_super+0xbc/0x110
[  427.527886][ T6048]  cleanup_mnt+0x3d3/0x460
[  427.527906][ T6048]  task_work_run+0x1d9/0x270
[  427.527925][ T6048]  ? __pfx_task_work_run+0x10/0x10
[  427.527947][ T6048]  exit_to_user_mode_loop+0x1fa/0x730
[  427.527965][ T6048]  ? rcu_is_watching+0x15/0xb0
[  427.527985][ T6048]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  427.528002][ T6048]  do_syscall_64+0x353/0x580
[  427.528020][ T6048]  ? trace_irq_disable+0x3b/0x140
[  427.528044][ T6048]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  427.528059][ T6048] RIP: 0033:0x7f02fe39f257
[  427.528076][ T6048] Code: a2 c7 05 9c 44 25 00 00 00 00 00 eb 96 e8 e1 12 00 00 90 31 f6 e9 09 00 00 00 66 0f 1f 84 00 00 00 00 00 b8 a6 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 01 c3 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8
[  427.528086][ T6048] RSP: 002b:00007fff9b96aa28 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
[  427.528103][ T6048] RAX: 0000000000000000 RBX: 00007f02fe43445c RCX: 00007f02fe39f257
[  427.528112][ T6048] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007fff9b96aae0
[  427.528120][ T6048] RBP: 00007fff9b96aae0 R08: 00007fff9b96bae0 R09: 00000000ffffffff
[  427.528128][ T6048] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fff9b96bb70
[  427.528136][ T6048] R13: 00007f02fe43445c R14: 0000000000068574 R15: 00007fff9b96bbb0
[  427.528157][ T6048]  </TASK>
[  427.658699][ T6048] F2FS-fs (loop1): Stopped filesystem due to reason: 3
[  427.670941][T10210] F2FS-fs (loop0): Small segment_count (9 < 1 * 24)
[  427.680147][T10210] F2FS-fs (loop0): Can't find valid F2FS filesystem in 1th superblock
[  427.739206][T10210] F2FS-fs (loop0): f2fs_recover_fsync_data: recovery fsync data, check_only: 0
[  427.747825][T10210] F2FS-fs (loop0): Try to recover 1th superblock, ret: 0
[  427.767427][T10210] F2FS-fs (loop0): Mounted with checkpoint version = 48b305e5
[  427.795494][T10210] syz.0.1012: attempt to access beyond end of device
[  427.795494][T10210] loop0: rw=2049, sector=53248, nr_sectors = 976 limit=40427
[  427.815489][ T6042] CPU: 0 UID: 0 PID: 6042 Comm: syz-executor Not tainted syzkaller #0 PREEMPT(full) 
[  427.815514][ T6042] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
[  427.815522][ T6042] Call Trace:
[  427.815531][ T6042]  <TASK>
[  427.815539][ T6042]  dump_stack_lvl+0xe8/0x150
[  427.815568][ T6042]  f2fs_stop_checkpoint+0x3f6/0x5d0
[  427.815593][ T6042]  f2fs_write_end_io+0x124b/0x1710
[  427.815631][ T6042]  __submit_merged_bio+0x258/0x6a0
[  427.815659][ T6042]  ? rcu_is_watching+0x15/0xb0
[  427.815686][ T6042]  __submit_merged_write_cond+0x3c9/0x4e0
[  427.815712][ T6042]  ? __pfx___submit_merged_write_cond+0x10/0x10
[  427.815748][ T6042]  f2fs_write_data_pages+0x2a27/0x36f0
[  427.815767][ T6042]  ? __lock_acquire+0x683/0x2cf0
[  427.815811][ T6042]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  427.815866][ T6042]  ? __pfx_hlock_conflict+0x10/0x10
[  427.815879][ T6042]  ? __bfs+0x153/0x290
[  427.815895][ T6042]  ? __pfx_hlock_conflict+0x10/0x10
[  427.815922][ T6042]  ? lockdep_unlock+0x5d/0xd0
[  427.815937][ T6042]  ? __lock_acquire+0x13e8/0x2cf0
[  427.815977][ T6042]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  427.815998][ T6042]  do_writepages+0x338/0x560
[  427.816026][ T6042]  ? do_raw_spin_unlock+0x4d/0x210
[  427.816046][ T6042]  filemap_fdatawrite+0x1e9/0x2f0
[  427.816069][ T6042]  ? __pfx_filemap_fdatawrite+0x10/0x10
[  427.816111][ T6042]  ? do_raw_spin_unlock+0x4d/0x210
[  427.816127][ T6042]  f2fs_sync_dirty_inodes+0x30e/0x830
[  427.816156][ T6042]  f2fs_write_checkpoint+0xa3d/0x2710
[  427.816194][ T6042]  ? __pfx_f2fs_write_checkpoint+0x10/0x10
[  427.816287][ T6042]  kill_f2fs_super+0x2dd/0x700
[  427.816314][ T6042]  ? __pfx_kill_f2fs_super+0x10/0x10
[  427.816342][ T6042]  ? call_rcu+0x64b/0x8b0
[  427.816355][ T6042]  ? lockdep_hardirqs_on+0x7a/0x110
[  427.816384][ T6042]  deactivate_locked_super+0xbc/0x110
[  427.816407][ T6042]  cleanup_mnt+0x3d3/0x460
[  427.816425][ T6042]  task_work_run+0x1d9/0x270
[  427.816449][ T6042]  ? __pfx_task_work_run+0x10/0x10
[  427.816474][ T6042]  exit_to_user_mode_loop+0x1fa/0x730
[  427.816492][ T6042]  ? rcu_is_watching+0x15/0xb0
[  427.816510][ T6042]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  427.816527][ T6042]  do_syscall_64+0x353/0x580
[  427.816543][ T6042]  ? trace_irq_disable+0x3b/0x140
[  427.816567][ T6042]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  427.816581][ T6042] RIP: 0033:0x7f472c39f257
[  427.816596][ T6042] 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
[  427.816607][ T6042] RSP: 002b:00007ffccbd49c88 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
[  427.816623][ T6042] RAX: 0000000000000000 RBX: 00007f472c43445c RCX: 00007f472c39f257
[  427.816633][ T6042] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffccbd49d40
[  427.816651][ T6042] RBP: 00007ffccbd49d40 R08: 00007ffccbd4ad40 R09: 00000000ffffffff
[  427.816659][ T6042] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffccbd4add0
[  427.816668][ T6042] R13: 00007f472c43445c R14: 00000000000686b1 R15: 00007ffccbd4ae10
[  427.816694][ T6042]  </TASK>
[  427.816701][ T6042] F2FS-fs (loop0): Stopped filesystem due to reason: 3
[  428.187257][T10214] F2FS-fs (loop2): Small segment_count (9 < 1 * 24)
[  428.194069][T10214] F2FS-fs (loop2): Can't find valid F2FS filesystem in 1th superblock
[  428.300344][T10214] F2FS-fs (loop2): f2fs_recover_fsync_data: recovery fsync data, check_only: 0
[  428.321693][T10214] F2FS-fs (loop2): Try to recover 1th superblock, ret: 0
[  428.325656][T10214] F2FS-fs (loop2): Mounted with checkpoint version = 48b305e5
[  428.393922][ T6047] CPU: 1 UID: 0 PID: 6047 Comm: syz-executor Not tainted syzkaller #0 PREEMPT(full) 
[  428.393950][ T6047] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
[  428.393960][ T6047] Call Trace:
[  428.393967][ T6047]  <TASK>
[  428.393975][ T6047]  dump_stack_lvl+0xe8/0x150
[  428.394003][ T6047]  f2fs_stop_checkpoint+0x3f6/0x5d0
[  428.394027][ T6047]  f2fs_write_end_io+0x124b/0x1710
[  428.394062][ T6047]  __submit_merged_bio+0x258/0x6a0
[  428.394081][ T6047]  ? rcu_is_watching+0x15/0xb0
[  428.394107][ T6047]  __submit_merged_write_cond+0x3c9/0x4e0
[  428.394132][ T6047]  ? __pfx___submit_merged_write_cond+0x10/0x10
[  428.394194][ T6047]  f2fs_write_data_pages+0x2a27/0x36f0
[  428.394216][ T6047]  ? __pfx_usage_match+0x10/0x10
[  428.394235][ T6047]  ? __bfs+0x153/0x290
[  428.394278][ T6047]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  428.394309][ T6047]  ? ktime_get+0x45/0x220
[  428.394349][ T6047]  ? __pfx_hlock_conflict+0x10/0x10
[  428.394361][ T6047]  ? __bfs+0x153/0x290
[  428.394376][ T6047]  ? __pfx_hlock_conflict+0x10/0x10
[  428.394401][ T6047]  ? lockdep_unlock+0x5d/0xd0
[  428.394416][ T6047]  ? __lock_acquire+0x13e8/0x2cf0
[  428.394455][ T6047]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  428.394476][ T6047]  do_writepages+0x338/0x560
[  428.394502][ T6047]  ? do_raw_spin_unlock+0x4d/0x210
[  428.394523][ T6047]  filemap_fdatawrite+0x1e9/0x2f0
[  428.394545][ T6047]  ? __pfx_filemap_fdatawrite+0x10/0x10
[  428.394598][ T6047]  ? do_raw_spin_unlock+0x4d/0x210
[  428.394617][ T6047]  f2fs_sync_dirty_inodes+0x30e/0x830
[  428.394650][ T6047]  f2fs_write_checkpoint+0xa3d/0x2710
[  428.394700][ T6047]  ? __pfx_f2fs_write_checkpoint+0x10/0x10
[  428.394760][ T6047]  kill_f2fs_super+0x2dd/0x700
[  428.394788][ T6047]  ? __pfx_kill_f2fs_super+0x10/0x10
[  428.394816][ T6047]  ? call_rcu+0x64b/0x8b0
[  428.394830][ T6047]  ? lockdep_hardirqs_on+0x7a/0x110
[  428.394859][ T6047]  deactivate_locked_super+0xbc/0x110
[  428.394882][ T6047]  cleanup_mnt+0x3d3/0x460
[  428.394903][ T6047]  task_work_run+0x1d9/0x270
[  428.394929][ T6047]  ? __pfx_task_work_run+0x10/0x10
[  428.394958][ T6047]  exit_to_user_mode_loop+0x1fa/0x730
[  428.394977][ T6047]  ? rcu_is_watching+0x15/0xb0
[  428.394998][ T6047]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  428.395014][ T6047]  do_syscall_64+0x353/0x580
[  428.395031][ T6047]  ? trace_irq_disable+0x3b/0x140
[  428.395053][ T6047]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  428.395068][ T6047] RIP: 0033:0x7f5458f9f257
[  428.395085][ T6047] 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
[  428.395098][ T6047] RSP: 002b:00007ffc648103f8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
[  428.395115][ T6047] RAX: 0000000000000000 RBX: 00007f545903445c RCX: 00007f5458f9f257
[  428.395124][ T6047] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffc648104b0
[  428.395132][ T6047] RBP: 00007ffc648104b0 R08: 00007ffc648114b0 R09: 00000000ffffffff
[  428.395141][ T6047] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc64811540
[  428.395150][ T6047] R13: 00007f545903445c R14: 00000000000688e8 R15: 00007ffc64811580
[  428.395202][ T6047]  </TASK>
[  428.395210][ T6047] F2FS-fs (loop2): Stopped filesystem due to reason: 3
[  428.543236][T10218] set_capacity_and_notify: 3 callbacks suppressed
[  428.543254][T10218] loop1: detected capacity change from 0 to 40427
[  428.570409][T10218] F2FS-fs (loop1): Small segment_count (9 < 1 * 24)
[  428.573519][T10218] F2FS-fs (loop1): Can't find valid F2FS filesystem in 1th superblock
[  428.628535][T10222] loop0: detected capacity change from 0 to 40427
[  428.642787][T10222] F2FS-fs (loop0): Small segment_count (9 < 1 * 24)
[  428.649608][T10222] F2FS-fs (loop0): Can't find valid F2FS filesystem in 1th superblock
[  428.656401][T10218] F2FS-fs (loop1): f2fs_recover_fsync_data: recovery fsync data, check_only: 0
[  428.673211][T10218] F2FS-fs (loop1): Try to recover 1th superblock, ret: 0
[  428.684190][T10218] F2FS-fs (loop1): Mounted with checkpoint version = 48b305e5
[  428.750206][ T6048] CPU: 0 UID: 0 PID: 6048 Comm: syz-executor Not tainted syzkaller #0 PREEMPT(full) 
[  428.750231][ T6048] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
[  428.750241][ T6048] Call Trace:
[  428.750249][ T6048]  <TASK>
[  428.750257][ T6048]  dump_stack_lvl+0xe8/0x150
[  428.750285][ T6048]  f2fs_stop_checkpoint+0x3f6/0x5d0
[  428.750326][ T6048]  f2fs_write_end_io+0x124b/0x1710
[  428.750381][ T6048]  __submit_merged_bio+0x258/0x6a0
[  428.750397][ T6048]  ? rcu_is_watching+0x15/0xb0
[  428.750422][ T6048]  __submit_merged_write_cond+0x3c9/0x4e0
[  428.750445][ T6048]  ? __pfx___submit_merged_write_cond+0x10/0x10
[  428.750476][ T6048]  f2fs_write_data_pages+0x2a27/0x36f0
[  428.750515][ T6048]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  428.750562][ T6048]  ? update_se+0x90/0x1020
[  428.750579][ T6048]  ? __pfx_hlock_conflict+0x10/0x10
[  428.750591][ T6048]  ? __bfs+0x153/0x290
[  428.750608][ T6048]  ? __pfx_hlock_conflict+0x10/0x10
[  428.750632][ T6048]  ? lockdep_unlock+0x5d/0xd0
[  428.750647][ T6048]  ? __lock_acquire+0x13e8/0x2cf0
[  428.750684][ T6048]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  428.750705][ T6048]  do_writepages+0x338/0x560
[  428.750734][ T6048]  ? do_raw_spin_unlock+0x4d/0x210
[  428.750753][ T6048]  filemap_fdatawrite+0x1e9/0x2f0
[  428.750775][ T6048]  ? __pfx_filemap_fdatawrite+0x10/0x10
[  428.750827][ T6048]  ? do_raw_spin_unlock+0x4d/0x210
[  428.750846][ T6048]  f2fs_sync_dirty_inodes+0x30e/0x830
[  428.750878][ T6048]  f2fs_write_checkpoint+0xa3d/0x2710
[  428.750921][ T6048]  ? __pfx_f2fs_write_checkpoint+0x10/0x10
[  428.750980][ T6048]  kill_f2fs_super+0x2dd/0x700
[  428.751006][ T6048]  ? __pfx_kill_f2fs_super+0x10/0x10
[  428.751033][ T6048]  ? call_rcu+0x64b/0x8b0
[  428.751045][ T6048]  ? lockdep_hardirqs_on+0x7a/0x110
[  428.751074][ T6048]  deactivate_locked_super+0xbc/0x110
[  428.751097][ T6048]  cleanup_mnt+0x3d3/0x460
[  428.751114][ T6048]  task_work_run+0x1d9/0x270
[  428.751135][ T6048]  ? __pfx_task_work_run+0x10/0x10
[  428.751201][ T6048]  exit_to_user_mode_loop+0x1fa/0x730
[  428.751219][ T6048]  ? rcu_is_watching+0x15/0xb0
[  428.751235][ T6048]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  428.751250][ T6048]  do_syscall_64+0x353/0x580
[  428.751267][ T6048]  ? trace_irq_disable+0x3b/0x140
[  428.751286][ T6048]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  428.751299][ T6048] RIP: 0033:0x7f02fe39f257
[  428.751312][ T6048] Code: a2 c7 05 9c 44 25 00 00 00 00 00 eb 96 e8 e1 12 00 00 90 31 f6 e9 09 00 00 00 66 0f 1f 84 00 00 00 00 00 b8 a6 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 01 c3 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8
[  428.751325][ T6048] RSP: 002b:00007fff9b96aa28 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
[  428.751342][ T6048] RAX: 0000000000000000 RBX: 00007f02fe43445c RCX: 00007f02fe39f257
[  428.751352][ T6048] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007fff9b96aae0
[  428.751361][ T6048] RBP: 00007fff9b96aae0 R08: 00007fff9b96bae0 R09: 00000000ffffffff
[  428.751370][ T6048] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fff9b96bb70
[  428.751377][ T6048] R13: 00007f02fe43445c R14: 0000000000068a2a R15: 00007fff9b96bbb0
[  428.751399][ T6048]  </TASK>
[  428.751448][ T6048] F2FS-fs (loop1): Stopped filesystem due to reason: 3
[  428.901962][T10222] F2FS-fs (loop0): f2fs_recover_fsync_data: recovery fsync data, check_only: 0
[  428.967707][T10222] F2FS-fs (loop0): Try to recover 1th superblock, ret: 0
[  428.980279][T10222] F2FS-fs (loop0): Mounted with checkpoint version = 48b305e5
[  429.021254][ T6042] CPU: 1 UID: 0 PID: 6042 Comm: syz-executor Not tainted syzkaller #0 PREEMPT(full) 
[  429.021280][ T6042] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
[  429.021290][ T6042] Call Trace:
[  429.021297][ T6042]  <TASK>
[  429.021305][ T6042]  dump_stack_lvl+0xe8/0x150
[  429.021334][ T6042]  f2fs_stop_checkpoint+0x3f6/0x5d0
[  429.021359][ T6042]  f2fs_write_end_io+0x124b/0x1710
[  429.021396][ T6042]  __submit_merged_bio+0x258/0x6a0
[  429.021414][ T6042]  ? rcu_is_watching+0x15/0xb0
[  429.021441][ T6042]  __submit_merged_write_cond+0x3c9/0x4e0
[  429.021465][ T6042]  ? __pfx___submit_merged_write_cond+0x10/0x10
[  429.021499][ T6042]  f2fs_write_data_pages+0x2a27/0x36f0
[  429.021519][ T6042]  ? __lock_acquire+0x683/0x2cf0
[  429.021560][ T6042]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  429.021612][ T6042]  ? __pfx_hlock_conflict+0x10/0x10
[  429.021624][ T6042]  ? __bfs+0x153/0x290
[  429.021641][ T6042]  ? __pfx_hlock_conflict+0x10/0x10
[  429.021666][ T6042]  ? lockdep_unlock+0x5d/0xd0
[  429.021682][ T6042]  ? __lock_acquire+0x13e8/0x2cf0
[  429.021718][ T6042]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  429.021737][ T6042]  do_writepages+0x338/0x560
[  429.021763][ T6042]  ? do_raw_spin_unlock+0x4d/0x210
[  429.021781][ T6042]  filemap_fdatawrite+0x1e9/0x2f0
[  429.021805][ T6042]  ? __pfx_filemap_fdatawrite+0x10/0x10
[  429.021858][ T6042]  ? do_raw_spin_unlock+0x4d/0x210
[  429.021877][ T6042]  f2fs_sync_dirty_inodes+0x30e/0x830
[  429.021910][ T6042]  f2fs_write_checkpoint+0xa3d/0x2710
[  429.021955][ T6042]  ? __pfx_f2fs_write_checkpoint+0x10/0x10
[  429.022013][ T6042]  kill_f2fs_super+0x2dd/0x700
[  429.022041][ T6042]  ? __pfx_kill_f2fs_super+0x10/0x10
[  429.022069][ T6042]  ? call_rcu+0x64b/0x8b0
[  429.022083][ T6042]  ? lockdep_hardirqs_on+0x7a/0x110
[  429.022112][ T6042]  deactivate_locked_super+0xbc/0x110
[  429.022167][ T6042]  cleanup_mnt+0x3d3/0x460
[  429.022195][ T6042]  task_work_run+0x1d9/0x270
[  429.022219][ T6042]  ? __pfx_task_work_run+0x10/0x10
[  429.022247][ T6042]  exit_to_user_mode_loop+0x1fa/0x730
[  429.022266][ T6042]  ? rcu_is_watching+0x15/0xb0
[  429.022286][ T6042]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  429.022303][ T6042]  do_syscall_64+0x353/0x580
[  429.022319][ T6042]  ? trace_irq_disable+0x3b/0x140
[  429.022341][ T6042]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  429.022356][ T6042] RIP: 0033:0x7f472c39f257
[  429.022372][ T6042] 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
[  429.022385][ T6042] RSP: 002b:00007ffccbd49c88 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
[  429.022403][ T6042] RAX: 0000000000000000 RBX: 00007f472c43445c RCX: 00007f472c39f257
[  429.022413][ T6042] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffccbd49d40
[  429.022423][ T6042] RBP: 00007ffccbd49d40 R08: 00007ffccbd4ad40 R09: 00000000ffffffff
[  429.022433][ T6042] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffccbd4add0
[  429.022441][ T6042] R13: 00007f472c43445c R14: 0000000000068b56 R15: 00007ffccbd4ae10
[  429.022466][ T6042]  </TASK>
[  429.022473][ T6042] F2FS-fs (loop0): Stopped filesystem due to reason: 3
[  429.192226][T10228] loop2: detected capacity change from 0 to 40427
[  429.196345][T10228] F2FS-fs (loop2): Small segment_count (9 < 1 * 24)
[  429.199223][T10228] F2FS-fs (loop2): Can't find valid F2FS filesystem in 1th superblock
[  429.277400][T10228] F2FS-fs (loop2): f2fs_recover_fsync_data: recovery fsync data, check_only: 0
[  429.300407][T10228] F2FS-fs (loop2): Try to recover 1th superblock, ret: 0
[  429.305238][T10228] F2FS-fs (loop2): Mounted with checkpoint version = 48b305e5
[  429.316877][   T33] kauditd_printk_skb: 16 callbacks suppressed
[  429.316894][   T33] audit: type=1800 audit(1785658948.670:1997): pid=10228 uid=0 auid=4294967295 ses=4294967295 subj=unconfined op=collect_data cause=failed(directio) comm="syz.2.1015" name="file1" dev="loop2" ino=10 res=0 errno=0
[  429.345369][   T33] audit: type=1800 audit(1785658948.680:1998): pid=10228 uid=0 auid=4294967295 ses=4294967295 subj=unconfined op=collect_data cause=failed(directio) comm="syz.2.1015" name="file1" dev="loop2" ino=10 res=0 errno=0
[  429.385385][ T6047] CPU: 1 UID: 0 PID: 6047 Comm: syz-executor Not tainted syzkaller #0 PREEMPT(full) 
[  429.385436][ T6047] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
[  429.385447][ T6047] Call Trace:
[  429.385454][ T6047]  <TASK>
[  429.385461][ T6047]  dump_stack_lvl+0xe8/0x150
[  429.385489][ T6047]  f2fs_stop_checkpoint+0x3f6/0x5d0
[  429.385511][ T6047]  f2fs_write_end_io+0x124b/0x1710
[  429.385545][ T6047]  __submit_merged_bio+0x258/0x6a0
[  429.385563][ T6047]  ? rcu_is_watching+0x15/0xb0
[  429.385589][ T6047]  __submit_merged_write_cond+0x3c9/0x4e0
[  429.385614][ T6047]  ? __pfx___submit_merged_write_cond+0x10/0x10
[  429.385650][ T6047]  f2fs_write_data_pages+0x2a27/0x36f0
[  429.385694][ T6047]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  429.385724][ T6047]  ? lockdep_unlock+0x5d/0xd0
[  429.385763][ T6047]  ? ktime_get+0x45/0x220
[  429.385780][ T6047]  ? __pfx_hlock_conflict+0x10/0x10
[  429.385793][ T6047]  ? __bfs+0x153/0x290
[  429.385809][ T6047]  ? __pfx_hlock_conflict+0x10/0x10
[  429.385836][ T6047]  ? lockdep_unlock+0x5d/0xd0
[  429.385851][ T6047]  ? __lock_acquire+0x13e8/0x2cf0
[  429.385890][ T6047]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  429.385910][ T6047]  do_writepages+0x338/0x560
[  429.385938][ T6047]  ? do_raw_spin_unlock+0x4d/0x210
[  429.385957][ T6047]  filemap_fdatawrite+0x1e9/0x2f0
[  429.385980][ T6047]  ? __pfx_filemap_fdatawrite+0x10/0x10
[  429.386033][ T6047]  ? do_raw_spin_unlock+0x4d/0x210
[  429.386051][ T6047]  f2fs_sync_dirty_inodes+0x30e/0x830
[  429.386084][ T6047]  f2fs_write_checkpoint+0xa3d/0x2710
[  429.386166][ T6047]  ? __pfx_f2fs_write_checkpoint+0x10/0x10
[  429.386227][ T6047]  kill_f2fs_super+0x2dd/0x700
[  429.386254][ T6047]  ? __pfx_kill_f2fs_super+0x10/0x10
[  429.386283][ T6047]  ? call_rcu+0x64b/0x8b0
[  429.386296][ T6047]  ? lockdep_hardirqs_on+0x7a/0x110
[  429.386323][ T6047]  deactivate_locked_super+0xbc/0x110
[  429.386347][ T6047]  cleanup_mnt+0x3d3/0x460
[  429.386366][ T6047]  task_work_run+0x1d9/0x270
[  429.386391][ T6047]  ? __pfx_task_work_run+0x10/0x10
[  429.386418][ T6047]  exit_to_user_mode_loop+0x1fa/0x730
[  429.386437][ T6047]  ? rcu_is_watching+0x15/0xb0
[  429.386458][ T6047]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  429.386474][ T6047]  do_syscall_64+0x353/0x580
[  429.386492][ T6047]  ? trace_irq_disable+0x3b/0x140
[  429.386515][ T6047]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  429.386531][ T6047] RIP: 0033:0x7f5458f9f257
[  429.386549][ T6047] 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
[  429.386562][ T6047] RSP: 002b:00007ffc648103f8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
[  429.386580][ T6047] RAX: 0000000000000000 RBX: 00007f545903445c RCX: 00007f5458f9f257
[  429.386589][ T6047] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffc648104b0
[  429.386598][ T6047] RBP: 00007ffc648104b0 R08: 00007ffc648114b0 R09: 00000000ffffffff
[  429.386607][ T6047] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc64811540
[  429.386616][ T6047] R13: 00007f545903445c R14: 0000000000068cbc R15: 00007ffc64811580
[  429.386637][ T6047]  </TASK>
[  429.387139][ T6047] F2FS-fs (loop2): Stopped filesystem due to reason: 3
[  429.412021][T10230] loop1: detected capacity change from 0 to 40427
[  429.530913][T10230] F2FS-fs (loop1): Small segment_count (9 < 1 * 24)
[  429.535059][T10230] F2FS-fs (loop1): Can't find valid F2FS filesystem in 1th superblock
[  429.701762][T10230] F2FS-fs (loop1): f2fs_recover_fsync_data: recovery fsync data, check_only: 0
[  429.727428][T10230] F2FS-fs (loop1): Try to recover 1th superblock, ret: 0
[  429.733557][T10230] F2FS-fs (loop1): Mounted with checkpoint version = 48b305e5
[  429.750475][   T33] audit: type=1800 audit(1785658949.110:1999): pid=10230 uid=0 auid=4294967295 ses=4294967295 subj=unconfined op=collect_data cause=failed(directio) comm="syz.1.1016" name="file1" dev="loop1" ino=10 res=0 errno=0
[  429.766968][   T33] audit: type=1800 audit(1785658949.110:2000): pid=10230 uid=0 auid=4294967295 ses=4294967295 subj=unconfined op=collect_data cause=failed(directio) comm="syz.1.1016" name="file1" dev="loop1" ino=10 res=0 errno=0
[  429.784236][ T6048] CPU: 0 UID: 0 PID: 6048 Comm: syz-executor Not tainted syzkaller #0 PREEMPT(full) 
[  429.784267][ T6048] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
[  429.784273][ T6048] Call Trace:
[  429.784278][ T6048]  <TASK>
[  429.784283][ T6048]  dump_stack_lvl+0xe8/0x150
[  429.784303][ T6048]  f2fs_stop_checkpoint+0x3f6/0x5d0
[  429.784320][ T6048]  f2fs_write_end_io+0x124b/0x1710
[  429.784342][ T6048]  __submit_merged_bio+0x258/0x6a0
[  429.784353][ T6048]  ? rcu_is_watching+0x15/0xb0
[  429.784370][ T6048]  __submit_merged_write_cond+0x3c9/0x4e0
[  429.784384][ T6048]  ? __pfx___submit_merged_write_cond+0x10/0x10
[  429.784404][ T6048]  f2fs_write_data_pages+0x2a27/0x36f0
[  429.784416][ T6048]  ? __lock_acquire+0x683/0x2cf0
[  429.784442][ T6048]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  429.784472][ T6048]  ? __pfx_hlock_conflict+0x10/0x10
[  429.784480][ T6048]  ? __bfs+0x153/0x290
[  429.784490][ T6048]  ? __pfx_hlock_conflict+0x10/0x10
[  429.784505][ T6048]  ? lockdep_unlock+0x5d/0xd0
[  429.784514][ T6048]  ? __lock_acquire+0x13e8/0x2cf0
[  429.784540][ T6048]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  429.784553][ T6048]  do_writepages+0x338/0x560
[  429.784570][ T6048]  ? do_raw_spin_unlock+0x4d/0x210
[  429.784581][ T6048]  filemap_fdatawrite+0x1e9/0x2f0
[  429.784595][ T6048]  ? __pfx_filemap_fdatawrite+0x10/0x10
[  429.784625][ T6048]  ? do_raw_spin_unlock+0x4d/0x210
[  429.784636][ T6048]  f2fs_sync_dirty_inodes+0x30e/0x830
[  429.784656][ T6048]  f2fs_write_checkpoint+0xa3d/0x2710
[  429.784682][ T6048]  ? __pfx_f2fs_write_checkpoint+0x10/0x10
[  429.784716][ T6048]  kill_f2fs_super+0x2dd/0x700
[  429.784733][ T6048]  ? __pfx_kill_f2fs_super+0x10/0x10
[  429.784755][ T6048]  ? call_rcu+0x64b/0x8b0
[  429.784765][ T6048]  ? lockdep_hardirqs_on+0x7a/0x110
[  429.784787][ T6048]  deactivate_locked_super+0xbc/0x110
[  429.784807][ T6048]  cleanup_mnt+0x3d3/0x460
[  429.784824][ T6048]  task_work_run+0x1d9/0x270
[  429.784845][ T6048]  ? __pfx_task_work_run+0x10/0x10
[  429.784870][ T6048]  exit_to_user_mode_loop+0x1fa/0x730
[  429.784887][ T6048]  ? rcu_is_watching+0x15/0xb0
[  429.784906][ T6048]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  429.784921][ T6048]  do_syscall_64+0x353/0x580
[  429.784938][ T6048]  ? trace_irq_disable+0x3b/0x140
[  429.784953][ T6048]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  429.784962][ T6048] RIP: 0033:0x7f02fe39f257
[  429.784976][ T6048] Code: a2 c7 05 9c 44 25 00 00 00 00 00 eb 96 e8 e1 12 00 00 90 31 f6 e9 09 00 00 00 66 0f 1f 84 00 00 00 00 00 b8 a6 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 01 c3 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8
[  429.784988][ T6048] RSP: 002b:00007fff9b96aa28 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
[  429.785005][ T6048] RAX: 0000000000000000 RBX: 00007f02fe43445c RCX: 00007f02fe39f257
[  429.785015][ T6048] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007fff9b96aae0
[  429.785023][ T6048] RBP: 00007fff9b96aae0 R08: 00007fff9b96bae0 R09: 00000000ffffffff
[  429.785030][ T6048] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fff9b96bb70
[  429.785036][ T6048] R13: 00007f02fe43445c R14: 0000000000068e60 R15: 00007fff9b96bbb0
[  429.785050][ T6048]  </TASK>
[  429.786451][ T6048] F2FS-fs (loop1): Stopped filesystem due to reason: 3
[  430.151321][T10238] loop0: detected capacity change from 0 to 40427
[  430.163352][T10238] F2FS-fs (loop0): Small segment_count (9 < 1 * 24)
[  430.179312][T10236] loop2: detected capacity change from 0 to 40427
[  430.179749][T10238] F2FS-fs (loop0): Can't find valid F2FS filesystem in 1th superblock
[  430.212002][T10236] F2FS-fs (loop2): Small segment_count (9 < 1 * 24)
[  430.220383][T10236] F2FS-fs (loop2): Can't find valid F2FS filesystem in 1th superblock
[  430.313307][T10238] F2FS-fs (loop0): f2fs_recover_fsync_data: recovery fsync data, check_only: 0
[  430.332811][T10238] F2FS-fs (loop0): Try to recover 1th superblock, ret: 0
[  430.342353][T10238] F2FS-fs (loop0): Mounted with checkpoint version = 48b305e5
[  430.349298][T10236] F2FS-fs (loop2): f2fs_recover_fsync_data: recovery fsync data, check_only: 0
[  430.357217][   T33] audit: type=1800 audit(1785658949.710:2001): pid=10238 uid=0 auid=4294967295 ses=4294967295 subj=unconfined op=collect_data cause=failed(directio) comm="syz.0.1017" name="file1" dev="loop0" ino=10 res=0 errno=0
[  430.373369][T10236] F2FS-fs (loop2): Try to recover 1th superblock, ret: 0
[  430.379357][T10236] F2FS-fs (loop2): Mounted with checkpoint version = 48b305e5
[  430.379780][   T33] audit: type=1800 audit(1785658949.710:2002): pid=10238 uid=0 auid=4294967295 ses=4294967295 subj=unconfined op=collect_data cause=failed(directio) comm="syz.0.1017" name="file1" dev="loop0" ino=10 res=0 errno=0
[  430.393495][   T33] audit: type=1800 audit(1785658949.750:2003): pid=10236 uid=0 auid=4294967295 ses=4294967295 subj=unconfined op=collect_data cause=failed(directio) comm="syz.2.1018" name="file1" dev="loop2" ino=10 res=0 errno=0
[  430.412992][   T33] audit: type=1800 audit(1785658949.770:2004): pid=10236 uid=0 auid=4294967295 ses=4294967295 subj=unconfined op=collect_data cause=failed(directio) comm="syz.2.1018" name="file1" dev="loop2" ino=10 res=0 errno=0
[  430.429527][ T6042] CPU: 1 UID: 0 PID: 6042 Comm: syz-executor Not tainted syzkaller #0 PREEMPT(full) 
[  430.429552][ T6042] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
[  430.429561][ T6042] Call Trace:
[  430.429568][ T6042]  <TASK>
[  430.429576][ T6042]  dump_stack_lvl+0xe8/0x150
[  430.429603][ T6042]  f2fs_stop_checkpoint+0x3f6/0x5d0
[  430.429626][ T6042]  f2fs_write_end_io+0x124b/0x1710
[  430.429657][ T6042]  __submit_merged_bio+0x258/0x6a0
[  430.429673][ T6042]  ? rcu_is_watching+0x15/0xb0
[  430.429696][ T6042]  __submit_merged_write_cond+0x3c9/0x4e0
[  430.429719][ T6042]  ? __pfx___submit_merged_write_cond+0x10/0x10
[  430.429754][ T6042]  f2fs_write_data_pages+0x2a27/0x36f0
[  430.429774][ T6042]  ? __lock_acquire+0x683/0x2cf0
[  430.429817][ T6042]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  430.429869][ T6042]  ? __pfx_hlock_conflict+0x10/0x10
[  430.429882][ T6042]  ? __bfs+0x153/0x290
[  430.429899][ T6042]  ? __pfx_hlock_conflict+0x10/0x10
[  430.429925][ T6042]  ? lockdep_unlock+0x5d/0xd0
[  430.429968][ T6042]  ? __lock_acquire+0x13e8/0x2cf0
[  430.430008][ T6042]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  430.430028][ T6042]  do_writepages+0x338/0x560
[  430.430086][ T6042]  ? do_raw_spin_unlock+0x4d/0x210
[  430.430106][ T6042]  filemap_fdatawrite+0x1e9/0x2f0
[  430.430129][ T6042]  ? __pfx_filemap_fdatawrite+0x10/0x10
[  430.430181][ T6042]  ? do_raw_spin_unlock+0x4d/0x210
[  430.430217][ T6042]  f2fs_sync_dirty_inodes+0x30e/0x830
[  430.430250][ T6042]  f2fs_write_checkpoint+0xa3d/0x2710
[  430.430294][ T6042]  ? __pfx_f2fs_write_checkpoint+0x10/0x10
[  430.430345][ T6042]  kill_f2fs_super+0x2dd/0x700
[  430.430370][ T6042]  ? __pfx_kill_f2fs_super+0x10/0x10
[  430.430397][ T6042]  ? call_rcu+0x64b/0x8b0
[  430.430408][ T6042]  ? lockdep_hardirqs_on+0x7a/0x110
[  430.430432][ T6042]  deactivate_locked_super+0xbc/0x110
[  430.430453][ T6042]  cleanup_mnt+0x3d3/0x460
[  430.430470][ T6042]  task_work_run+0x1d9/0x270
[  430.430490][ T6042]  ? __pfx_task_work_run+0x10/0x10
[  430.430510][ T6042]  exit_to_user_mode_loop+0x1fa/0x730
[  430.430526][ T6042]  ? rcu_is_watching+0x15/0xb0
[  430.430544][ T6042]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  430.430557][ T6042]  do_syscall_64+0x353/0x580
[  430.430570][ T6042]  ? trace_irq_disable+0x3b/0x140
[  430.430590][ T6042]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  430.430602][ T6042] RIP: 0033:0x7f472c39f257
[  430.430616][ T6042] 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
[  430.430625][ T6042] RSP: 002b:00007ffccbd49c88 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
[  430.430639][ T6042] RAX: 0000000000000000 RBX: 00007f472c43445c RCX: 00007f472c39f257
[  430.430647][ T6042] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffccbd49d40
[  430.430653][ T6042] RBP: 00007ffccbd49d40 R08: 00007ffccbd4ad40 R09: 00000000ffffffff
[  430.430661][ T6042] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffccbd4add0
[  430.430669][ T6042] R13: 00007f472c43445c R14: 00000000000690af R15: 00007ffccbd4ae10
[  430.430690][ T6042]  </TASK>
[  430.589699][ T6042] F2FS-fs (loop0): Stopped filesystem due to reason: 3
[  430.593432][T10242] loop1: detected capacity change from 0 to 40427
[  430.599189][T10242] F2FS-fs (loop1): Small segment_count (9 < 1 * 24)
[  430.603256][T10242] F2FS-fs (loop1): Can't find valid F2FS filesystem in 1th superblock
[  430.614406][ T6047] CPU: 1 UID: 0 PID: 6047 Comm: syz-executor Not tainted syzkaller #0 PREEMPT(full) 
[  430.614432][ T6047] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
[  430.614442][ T6047] Call Trace:
[  430.614450][ T6047]  <TASK>
[  430.614457][ T6047]  dump_stack_lvl+0xe8/0x150
[  430.614486][ T6047]  f2fs_stop_checkpoint+0x3f6/0x5d0
[  430.614511][ T6047]  f2fs_write_end_io+0x124b/0x1710
[  430.614549][ T6047]  __submit_merged_bio+0x258/0x6a0
[  430.614566][ T6047]  ? rcu_is_watching+0x15/0xb0
[  430.614593][ T6047]  __submit_merged_write_cond+0x3c9/0x4e0
[  430.614618][ T6047]  ? __pfx___submit_merged_write_cond+0x10/0x10
[  430.614653][ T6047]  f2fs_write_data_pages+0x2a27/0x36f0
[  430.614699][ T6047]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  430.614752][ T6047]  ? __pfx_hlock_conflict+0x10/0x10
[  430.614766][ T6047]  ? __bfs+0x153/0x290
[  430.614783][ T6047]  ? __pfx_hlock_conflict+0x10/0x10
[  430.614810][ T6047]  ? lockdep_unlock+0x5d/0xd0
[  430.614825][ T6047]  ? __lock_acquire+0x13e8/0x2cf0
[  430.614864][ T6047]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  430.614884][ T6047]  do_writepages+0x338/0x560
[  430.614913][ T6047]  ? do_raw_spin_unlock+0x4d/0x210
[  430.614938][ T6047]  filemap_fdatawrite+0x1e9/0x2f0
[  430.614962][ T6047]  ? __pfx_filemap_fdatawrite+0x10/0x10
[  430.615015][ T6047]  ? do_raw_spin_unlock+0x4d/0x210
[  430.615067][ T6047]  f2fs_sync_dirty_inodes+0x30e/0x830
[  430.615100][ T6047]  f2fs_write_checkpoint+0xa3d/0x2710
[  430.615146][ T6047]  ? __pfx_f2fs_write_checkpoint+0x10/0x10
[  430.615206][ T6047]  kill_f2fs_super+0x2dd/0x700
[  430.615232][ T6047]  ? __pfx_kill_f2fs_super+0x10/0x10
[  430.615258][ T6047]  ? call_rcu+0x64b/0x8b0
[  430.615272][ T6047]  ? lockdep_hardirqs_on+0x7a/0x110
[  430.615300][ T6047]  deactivate_locked_super+0xbc/0x110
[  430.615323][ T6047]  cleanup_mnt+0x3d3/0x460
[  430.615342][ T6047]  task_work_run+0x1d9/0x270
[  430.615387][ T6047]  ? __pfx_task_work_run+0x10/0x10
[  430.615415][ T6047]  exit_to_user_mode_loop+0x1fa/0x730
[  430.615433][ T6047]  ? rcu_is_watching+0x15/0xb0
[  430.615455][ T6047]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  430.615471][ T6047]  do_syscall_64+0x353/0x580
[  430.615487][ T6047]  ? trace_irq_disable+0x3b/0x140
[  430.615511][ T6047]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  430.615525][ T6047] RIP: 0033:0x7f5458f9f257
[  430.615542][ T6047] 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
[  430.615555][ T6047] RSP: 002b:00007ffc648103f8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
[  430.615572][ T6047] RAX: 0000000000000000 RBX: 00007f545903445c RCX: 00007f5458f9f257
[  430.615582][ T6047] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffc648104b0
[  430.615591][ T6047] RBP: 00007ffc648104b0 R08: 00007ffc648114b0 R09: 00000000ffffffff
[  430.615601][ T6047] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc64811540
[  430.615611][ T6047] R13: 00007f545903445c R14: 0000000000069178 R15: 00007ffc64811580
[  430.615635][ T6047]  </TASK>
[  430.616266][ T6047] F2FS-fs (loop2): Stopped filesystem due to reason: 3
[  430.685847][T10242] F2FS-fs (loop1): f2fs_recover_fsync_data: recovery fsync data, check_only: 0
[  430.767997][T10242] F2FS-fs (loop1): Try to recover 1th superblock, ret: 0
[  430.772994][T10242] F2FS-fs (loop1): Mounted with checkpoint version = 48b305e5
[  430.779897][   T33] audit: type=1800 audit(1785658950.130:2005): pid=10242 uid=0 auid=4294967295 ses=4294967295 subj=unconfined op=collect_data cause=failed(directio) comm="syz.1.1019" name="file1" dev="loop1" ino=10 res=0 errno=0
[  430.790384][   T33] audit: type=1800 audit(1785658950.140:2006): pid=10242 uid=0 auid=4294967295 ses=4294967295 subj=unconfined op=collect_data cause=failed(directio) comm="syz.1.1019" name="file1" dev="loop1" ino=10 res=0 errno=0
[  430.814837][ T6048] CPU: 1 UID: 0 PID: 6048 Comm: syz-executor Not tainted syzkaller #0 PREEMPT(full) 
[  430.814863][ T6048] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
[  430.814872][ T6048] Call Trace:
[  430.814880][ T6048]  <TASK>
[  430.814888][ T6048]  dump_stack_lvl+0xe8/0x150
[  430.814915][ T6048]  f2fs_stop_checkpoint+0x3f6/0x5d0
[  430.814938][ T6048]  f2fs_write_end_io+0x124b/0x1710
[  430.814973][ T6048]  __submit_merged_bio+0x258/0x6a0
[  430.814989][ T6048]  ? rcu_is_watching+0x15/0xb0
[  430.815047][ T6048]  __submit_merged_write_cond+0x3c9/0x4e0
[  430.815071][ T6048]  ? __pfx___submit_merged_write_cond+0x10/0x10
[  430.815105][ T6048]  f2fs_write_data_pages+0x2a27/0x36f0
[  430.815144][ T6048]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  430.815193][ T6048]  ? __pfx_hlock_conflict+0x10/0x10
[  430.815207][ T6048]  ? __bfs+0x153/0x290
[  430.815224][ T6048]  ? __pfx_hlock_conflict+0x10/0x10
[  430.815249][ T6048]  ? lockdep_unlock+0x5d/0xd0
[  430.815265][ T6048]  ? __lock_acquire+0x13e8/0x2cf0
[  430.815303][ T6048]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  430.815323][ T6048]  do_writepages+0x338/0x560
[  430.815352][ T6048]  ? do_raw_spin_unlock+0x4d/0x210
[  430.815370][ T6048]  filemap_fdatawrite+0x1e9/0x2f0
[  430.815391][ T6048]  ? __pfx_filemap_fdatawrite+0x10/0x10
[  430.815441][ T6048]  ? do_raw_spin_unlock+0x4d/0x210
[  430.815460][ T6048]  f2fs_sync_dirty_inodes+0x30e/0x830
[  430.815500][ T6048]  f2fs_write_checkpoint+0xa3d/0x2710
[  430.815544][ T6048]  ? __pfx_f2fs_write_checkpoint+0x10/0x10
[  430.815596][ T6048]  kill_f2fs_super+0x2dd/0x700
[  430.815618][ T6048]  ? __pfx_kill_f2fs_super+0x10/0x10
[  430.815667][ T6048]  ? call_rcu+0x64b/0x8b0
[  430.815680][ T6048]  ? lockdep_hardirqs_on+0x7a/0x110
[  430.815705][ T6048]  deactivate_locked_super+0xbc/0x110
[  430.815727][ T6048]  cleanup_mnt+0x3d3/0x460
[  430.815745][ T6048]  task_work_run+0x1d9/0x270
[  430.815769][ T6048]  ? __pfx_task_work_run+0x10/0x10
[  430.815796][ T6048]  exit_to_user_mode_loop+0x1fa/0x730
[  430.815815][ T6048]  ? rcu_is_watching+0x15/0xb0
[  430.815835][ T6048]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  430.815850][ T6048]  do_syscall_64+0x353/0x580
[  430.815866][ T6048]  ? trace_irq_disable+0x3b/0x140
[  430.815889][ T6048]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  430.815902][ T6048] RIP: 0033:0x7f02fe39f257
[  430.815918][ T6048] Code: a2 c7 05 9c 44 25 00 00 00 00 00 eb 96 e8 e1 12 00 00 90 31 f6 e9 09 00 00 00 66 0f 1f 84 00 00 00 00 00 b8 a6 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 01 c3 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8
[  430.815931][ T6048] RSP: 002b:00007fff9b96aa28 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
[  430.815946][ T6048] RAX: 0000000000000000 RBX: 00007f02fe43445c RCX: 00007f02fe39f257
[  430.815956][ T6048] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007fff9b96aae0
[  430.815965][ T6048] RBP: 00007fff9b96aae0 R08: 00007fff9b96bae0 R09: 00000000ffffffff
[  430.815976][ T6048] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fff9b96bb70
[  430.815984][ T6048] R13: 00007f02fe43445c R14: 000000000006924c R15: 00007fff9b96bbb0
[  430.816033][ T6048]  </TASK>
[  430.830241][ T6048] F2FS-fs (loop1): Stopped filesystem due to reason: 3
[  431.519214][T10248] loop0: detected capacity change from 0 to 40427
[  431.531939][T10248] F2FS-fs (loop0): Small segment_count (9 < 1 * 24)
[  431.539569][T10248] F2FS-fs (loop0): Can't find valid F2FS filesystem in 1th superblock
[  431.645068][T10252] loop1: detected capacity change from 0 to 40427
[  431.654008][T10252] F2FS-fs (loop1): Small segment_count (9 < 1 * 24)
[  431.658303][T10252] F2FS-fs (loop1): Can't find valid F2FS filesystem in 1th superblock
[  431.696482][T10250] loop2: detected capacity change from 0 to 40427
[  431.700713][T10248] F2FS-fs (loop0): f2fs_recover_fsync_data: recovery fsync data, check_only: 0
[  431.709677][T10250] F2FS-fs (loop2): Small segment_count (9 < 1 * 24)
[  431.715399][T10250] F2FS-fs (loop2): Can't find valid F2FS filesystem in 1th superblock
[  431.718933][T10248] F2FS-fs (loop0): Try to recover 1th superblock, ret: 0
[  431.724885][T10248] F2FS-fs (loop0): Mounted with checkpoint version = 48b305e5
[  431.771220][T10248] bio_check_eod: 26 callbacks suppressed
[  431.771239][T10248] syz.0.1020: attempt to access beyond end of device
[  431.771239][T10248] loop0: rw=2049, sector=53248, nr_sectors = 976 limit=40427
[  431.798005][T10248] syz.0.1020: attempt to access beyond end of device
[  431.798005][T10248] loop0: rw=8423425, sector=54224, nr_sectors = 8 limit=40427
[  431.798843][T10250] F2FS-fs (loop2): f2fs_recover_fsync_data: recovery fsync data, check_only: 0
[  431.813990][T10250] F2FS-fs (loop2): Try to recover 1th superblock, ret: 0
[  431.817652][T10250] F2FS-fs (loop2): Mounted with checkpoint version = 48b305e5
[  431.818502][T10252] F2FS-fs (loop1): f2fs_recover_fsync_data: recovery fsync data, check_only: 0
[  431.840792][T10252] F2FS-fs (loop1): Try to recover 1th superblock, ret: 0
[  431.842745][T10250] syz.2.1021: attempt to access beyond end of device
[  431.842745][T10250] loop2: rw=2049, sector=53248, nr_sectors = 976 limit=40427
[  431.844981][T10252] F2FS-fs (loop1): Mounted with checkpoint version = 48b305e5
[  431.853067][ T6042] syz-executor: attempt to access beyond end of device
[  431.853067][ T6042] loop0: rw=2049, sector=45096, nr_sectors = 8 limit=40427
[  431.863522][T10250] syz.2.1021: attempt to access beyond end of device
[  431.863522][T10250] loop2: rw=8423425, sector=54224, nr_sectors = 8 limit=40427
[  431.867218][T10252] syz.1.1022: attempt to access beyond end of device
[  431.867218][T10252] loop1: rw=2049, sector=53248, nr_sectors = 976 limit=40427
[  431.879475][ T6042] CPU: 1 UID: 0 PID: 6042 Comm: syz-executor Not tainted syzkaller #0 PREEMPT(full) 
[  431.879500][ T6042] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
[  431.879509][ T6042] Call Trace:
[  431.879517][ T6042]  <TASK>
[  431.879523][ T6042]  dump_stack_lvl+0xe8/0x150
[  431.879548][ T6042]  f2fs_stop_checkpoint+0x3f6/0x5d0
[  431.879567][ T6042]  f2fs_write_end_io+0x124b/0x1710
[  431.879593][ T6042]  __submit_merged_bio+0x258/0x6a0
[  431.879605][ T6042]  ? rcu_is_watching+0x15/0xb0
[  431.879625][ T6042]  __submit_merged_write_cond+0x3c9/0x4e0
[  431.879644][ T6042]  ? __pfx___submit_merged_write_cond+0x10/0x10
[  431.879667][ T6042]  f2fs_write_data_pages+0x2a27/0x36f0
[  431.879681][ T6042]  ? __lock_acquire+0x683/0x2cf0
[  431.879738][ T6042]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  431.879778][ T6042]  ? __pfx_hlock_conflict+0x10/0x10
[  431.879790][ T6042]  ? __bfs+0x153/0x290
[  431.879803][ T6042]  ? __pfx_hlock_conflict+0x10/0x10
[  431.879824][ T6042]  ? lockdep_unlock+0x5d/0xd0
[  431.879838][ T6042]  ? __lock_acquire+0x13e8/0x2cf0
[  431.879868][ T6042]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  431.879885][ T6042]  do_writepages+0x338/0x560
[  431.879913][ T6042]  ? do_raw_spin_unlock+0x4d/0x210
[  431.879964][ T6042]  filemap_fdatawrite+0x1e9/0x2f0
[  431.879989][ T6042]  ? __pfx_filemap_fdatawrite+0x10/0x10
[  431.880046][ T6042]  ? do_raw_spin_unlock+0x4d/0x210
[  431.880069][ T6042]  f2fs_sync_dirty_inodes+0x30e/0x830
[  431.880101][ T6042]  f2fs_write_checkpoint+0xa3d/0x2710
[  431.880145][ T6042]  ? __pfx_f2fs_write_checkpoint+0x10/0x10
[  431.880203][ T6042]  kill_f2fs_super+0x2dd/0x700
[  431.880231][ T6042]  ? __pfx_kill_f2fs_super+0x10/0x10
[  431.880259][ T6042]  ? call_rcu+0x64b/0x8b0
[  431.880271][ T6042]  ? lockdep_hardirqs_on+0x7a/0x110
[  431.880298][ T6042]  deactivate_locked_super+0xbc/0x110
[  431.880321][ T6042]  cleanup_mnt+0x3d3/0x460
[  431.880340][ T6042]  task_work_run+0x1d9/0x270
[  431.880363][ T6042]  ? __pfx_task_work_run+0x10/0x10
[  431.880390][ T6042]  exit_to_user_mode_loop+0x1fa/0x730
[  431.880409][ T6042]  ? rcu_is_watching+0x15/0xb0
[  431.880430][ T6042]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  431.880446][ T6042]  do_syscall_64+0x353/0x580
[  431.880461][ T6042]  ? trace_irq_disable+0x3b/0x140
[  431.880482][ T6042]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  431.880496][ T6042] RIP: 0033:0x7f472c39f257
[  431.880513][ T6042] 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
[  431.880527][ T6042] RSP: 002b:00007ffccbd49c88 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
[  431.880541][ T6042] RAX: 0000000000000000 RBX: 00007f472c43445c RCX: 00007f472c39f257
[  431.880549][ T6042] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffccbd49d40
[  431.880556][ T6042] RBP: 00007ffccbd49d40 R08: 00007ffccbd4ad40 R09: 00000000ffffffff
[  431.880566][ T6042] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffccbd4add0
[  431.880574][ T6042] R13: 00007f472c43445c R14: 000000000006966b R15: 00007ffccbd4ae10
[  431.880593][ T6042]  </TASK>
2026/08/02 08:22:31 executed programs: 1012
[  432.023237][ T6047] syz-executor: attempt to access beyond end of device
[  432.023237][ T6047] loop2: rw=2049, sector=45096, nr_sectors = 8 limit=40427
[  432.023695][ T6048] syz-executor: attempt to access beyond end of device
[  432.023695][ T6048] loop1: rw=2049, sector=45096, nr_sectors = 8 limit=40427
[  432.030863][ T6047] CPU: 1 UID: 0 PID: 6047 Comm: syz-executor Not tainted syzkaller #0 PREEMPT(full) 
[  432.030886][ T6047] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
[  432.030897][ T6047] Call Trace:
[  432.030904][ T6047]  <TASK>
[  432.030911][ T6047]  dump_stack_lvl+0xe8/0x150
[  432.030977][ T6047]  f2fs_stop_checkpoint+0x3f6/0x5d0
[  432.031009][ T6047]  f2fs_write_end_io+0x124b/0x1710
[  432.031044][ T6047]  __submit_merged_bio+0x258/0x6a0
[  432.031062][ T6047]  ? rcu_is_watching+0x15/0xb0
[  432.031089][ T6047]  __submit_merged_write_cond+0x3c9/0x4e0
[  432.031113][ T6047]  ? __pfx___submit_merged_write_cond+0x10/0x10
[  432.031147][ T6047]  f2fs_write_data_pages+0x2a27/0x36f0
[  432.031194][ T6047]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  432.031245][ T6047]  ? __pfx_hlock_conflict+0x10/0x10
[  432.031259][ T6047]  ? __bfs+0x153/0x290
[  432.031277][ T6047]  ? __pfx_hlock_conflict+0x10/0x10
[  432.031304][ T6047]  ? lockdep_unlock+0x5d/0xd0
[  432.031320][ T6047]  ? __lock_acquire+0x13e8/0x2cf0
[  432.031358][ T6047]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  432.031379][ T6047]  do_writepages+0x338/0x560
[  432.031407][ T6047]  ? do_raw_spin_unlock+0x4d/0x210
[  432.031427][ T6047]  filemap_fdatawrite+0x1e9/0x2f0
[  432.031450][ T6047]  ? __pfx_filemap_fdatawrite+0x10/0x10
[  432.031500][ T6047]  ? do_raw_spin_unlock+0x4d/0x210
[  432.031520][ T6047]  f2fs_sync_dirty_inodes+0x30e/0x830
[  432.031553][ T6047]  f2fs_write_checkpoint+0xa3d/0x2710
[  432.031597][ T6047]  ? __pfx_f2fs_write_checkpoint+0x10/0x10
[  432.031660][ T6047]  kill_f2fs_super+0x2dd/0x700
[  432.031687][ T6047]  ? __pfx_kill_f2fs_super+0x10/0x10
[  432.031716][ T6047]  ? call_rcu+0x64b/0x8b0
[  432.031729][ T6047]  ? lockdep_hardirqs_on+0x7a/0x110
[  432.031758][ T6047]  deactivate_locked_super+0xbc/0x110
[  432.031782][ T6047]  cleanup_mnt+0x3d3/0x460
[  432.031802][ T6047]  task_work_run+0x1d9/0x270
[  432.031827][ T6047]  ? __pfx_task_work_run+0x10/0x10
[  432.031855][ T6047]  exit_to_user_mode_loop+0x1fa/0x730
[  432.031874][ T6047]  ? rcu_is_watching+0x15/0xb0
[  432.031894][ T6047]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  432.031911][ T6047]  do_syscall_64+0x353/0x580
[  432.031960][ T6047]  ? trace_irq_disable+0x3b/0x140
[  432.031985][ T6047]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  432.032005][ T6047] RIP: 0033:0x7f5458f9f257
[  432.032022][ T6047] 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
[  432.032034][ T6047] RSP: 002b:00007ffc648103f8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
[  432.032051][ T6047] RAX: 0000000000000000 RBX: 00007f545903445c RCX: 00007f5458f9f257
[  432.032061][ T6047] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffc648104b0
[  432.032070][ T6047] RBP: 00007ffc648104b0 R08: 00007ffc648114b0 R09: 00000000ffffffff
[  432.032081][ T6047] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc64811540
[  432.032089][ T6047] R13: 00007f545903445c R14: 0000000000069697 R15: 00007ffc64811580
[  432.032112][ T6047]  </TASK>
[  432.032120][ T6047] F2FS-fs (loop2): Stopped filesystem due to reason: 3
[  432.040832][ T6048] CPU: 0 UID: 0 PID: 6048 Comm: syz-executor Not tainted syzkaller #0 PREEMPT(full) 
[  432.040856][ T6048] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
[  432.040864][ T6048] Call Trace:
[  432.040871][ T6048]  <TASK>
[  432.040877][ T6048]  dump_stack_lvl+0xe8/0x150
[  432.040914][ T6048]  f2fs_stop_checkpoint+0x3f6/0x5d0
[  432.040978][ T6048]  f2fs_write_end_io+0x124b/0x1710
[  432.041015][ T6048]  __submit_merged_bio+0x258/0x6a0
[  432.041029][ T6048]  ? rcu_is_watching+0x15/0xb0
[  432.041053][ T6048]  __submit_merged_write_cond+0x3c9/0x4e0
[  432.041076][ T6048]  ? __pfx___submit_merged_write_cond+0x10/0x10
[  432.041109][ T6048]  f2fs_write_data_pages+0x2a27/0x36f0
[  432.041140][ T6048]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  432.041173][ T6048]  ? __pfx_hlock_conflict+0x10/0x10
[  432.041181][ T6048]  ? __bfs+0x153/0x290
[  432.041192][ T6048]  ? __pfx_hlock_conflict+0x10/0x10
[  432.041208][ T6048]  ? lockdep_unlock+0x5d/0xd0
[  432.041217][ T6048]  ? __lock_acquire+0x13e8/0x2cf0
[  432.041241][ T6048]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  432.041253][ T6048]  do_writepages+0x338/0x560
[  432.041272][ T6048]  ? do_raw_spin_unlock+0x4d/0x210
[  432.041284][ T6048]  filemap_fdatawrite+0x1e9/0x2f0
[  432.041319][ T6048]  ? __pfx_filemap_fdatawrite+0x10/0x10
[  432.041352][ T6048]  ? do_raw_spin_unlock+0x4d/0x210
[  432.041363][ T6048]  f2fs_sync_dirty_inodes+0x30e/0x830
[  432.041384][ T6048]  f2fs_write_checkpoint+0xa3d/0x2710
[  432.041415][ T6048]  ? __pfx_f2fs_write_checkpoint+0x10/0x10
[  432.041461][ T6048]  kill_f2fs_super+0x2dd/0x700
[  432.041486][ T6048]  ? __pfx_kill_f2fs_super+0x10/0x10
[  432.041511][ T6048]  ? call_rcu+0x64b/0x8b0
[  432.041525][ T6048]  ? lockdep_hardirqs_on+0x7a/0x110
[  432.041549][ T6048]  deactivate_locked_super+0xbc/0x110
[  432.041570][ T6048]  cleanup_mnt+0x3d3/0x460
[  432.041590][ T6048]  task_work_run+0x1d9/0x270
[  432.041609][ T6048]  ? __pfx_task_work_run+0x10/0x10
[  432.041626][ T6048]  exit_to_user_mode_loop+0x1fa/0x730
[  432.041639][ T6048]  ? rcu_is_watching+0x15/0xb0
[  432.041651][ T6048]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  432.041661][ T6048]  do_syscall_64+0x353/0x580
[  432.041671][ T6048]  ? trace_irq_disable+0x3b/0x140
[  432.041686][ T6048]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  432.041695][ T6048] RIP: 0033:0x7f02fe39f257
[  432.041706][ T6048] Code: a2 c7 05 9c 44 25 00 00 00 00 00 eb 96 e8 e1 12 00 00 90 31 f6 e9 09 00 00 00 66 0f 1f 84 00 00 00 00 00 b8 a6 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 01 c3 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8
[  432.041713][ T6048] RSP: 002b:00007fff9b96aa28 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
[  432.041725][ T6048] RAX: 0000000000000000 RBX: 00007f02fe43445c RCX: 00007f02fe39f257
[  432.041730][ T6048] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007fff9b96aae0
[  432.041736][ T6048] RBP: 00007fff9b96aae0 R08: 00007fff9b96bae0 R09: 00000000ffffffff
[  432.041741][ T6048] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fff9b96bb70
[  432.041747][ T6048] R13: 00007f02fe43445c R14: 0000000000069689 R15: 00007fff9b96bbb0
[  432.041761][ T6048]  </TASK>
[  432.052062][ T6048] F2FS-fs (loop1): Stopped filesystem due to reason: 3
[  432.065410][  T798] loop2: lost filesystem error report for type 5 error -108
[  432.160838][ T6042] F2FS-fs (loop0): Stopped filesystem due to reason: 3
[  432.873398][T10261] F2FS-fs (loop2): Small segment_count (9 < 1 * 24)
[  432.885149][T10261] F2FS-fs (loop2): Can't find valid F2FS filesystem in 1th superblock
[  432.983764][T10261] F2FS-fs (loop2): f2fs_recover_fsync_data: recovery fsync data, check_only: 0
[  432.993012][T10261] F2FS-fs (loop2): Try to recover 1th superblock, ret: 0
[  432.996708][T10261] F2FS-fs (loop2): Mounted with checkpoint version = 48b305e5
[  433.010466][T10265] F2FS-fs (loop0): Small segment_count (9 < 1 * 24)
[  433.013124][T10265] F2FS-fs (loop0): Can't find valid F2FS filesystem in 1th superblock
[  433.030834][T10261] syz.2.1024: attempt to access beyond end of device
[  433.030834][T10261] loop2: rw=2049, sector=53248, nr_sectors = 976 limit=40427
[  433.048979][T10263] F2FS-fs (loop1): Small segment_count (9 < 1 * 24)
[  433.070584][T10261] syz.2.1024: attempt to access beyond end of device
[  433.070584][T10261] loop2: rw=8423425, sector=54224, nr_sectors = 8 limit=40427
[  433.077809][T10263] F2FS-fs (loop1): Can't find valid F2FS filesystem in 1th superblock
[  433.117048][ T6047] CPU: 1 UID: 0 PID: 6047 Comm: syz-executor Not tainted syzkaller #0 PREEMPT(full) 
[  433.117073][ T6047] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
[  433.117081][ T6047] Call Trace:
[  433.117086][ T6047]  <TASK>
[  433.117093][ T6047]  dump_stack_lvl+0xe8/0x150
[  433.117117][ T6047]  f2fs_stop_checkpoint+0x3f6/0x5d0
[  433.117138][ T6047]  f2fs_write_end_io+0x124b/0x1710
[  433.117168][ T6047]  __submit_merged_bio+0x258/0x6a0
[  433.117182][ T6047]  ? rcu_is_watching+0x15/0xb0
[  433.117204][ T6047]  __submit_merged_write_cond+0x3c9/0x4e0
[  433.117223][ T6047]  ? __pfx___submit_merged_write_cond+0x10/0x10
[  433.117250][ T6047]  f2fs_write_data_pages+0x2a27/0x36f0
[  433.117288][ T6047]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  433.117329][ T6047]  ? wakeup_preempt_fair+0x745/0xb10
[  433.117347][ T6047]  ? __pfx_hlock_conflict+0x10/0x10
[  433.117357][ T6047]  ? __bfs+0x153/0x290
[  433.117371][ T6047]  ? __pfx_hlock_conflict+0x10/0x10
[  433.117392][ T6047]  ? lockdep_unlock+0x5d/0xd0
[  433.117404][ T6047]  ? __lock_acquire+0x13e8/0x2cf0
[  433.117434][ T6047]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  433.117450][ T6047]  do_writepages+0x338/0x560
[  433.117473][ T6047]  ? do_raw_spin_unlock+0x4d/0x210
[  433.117489][ T6047]  filemap_fdatawrite+0x1e9/0x2f0
[  433.117507][ T6047]  ? __pfx_filemap_fdatawrite+0x10/0x10
[  433.117552][ T6047]  ? do_raw_spin_unlock+0x4d/0x210
[  433.117567][ T6047]  f2fs_sync_dirty_inodes+0x30e/0x830
[  433.117593][ T6047]  f2fs_write_checkpoint+0xa3d/0x2710
[  433.117654][ T6047]  ? __pfx_f2fs_write_checkpoint+0x10/0x10
[  433.117707][ T6047]  kill_f2fs_super+0x2dd/0x700
[  433.117730][ T6047]  ? __pfx_kill_f2fs_super+0x10/0x10
[  433.117752][ T6047]  ? call_rcu+0x64b/0x8b0
[  433.117764][ T6047]  ? lockdep_hardirqs_on+0x7a/0x110
[  433.117787][ T6047]  deactivate_locked_super+0xbc/0x110
[  433.117807][ T6047]  cleanup_mnt+0x3d3/0x460
[  433.117824][ T6047]  task_work_run+0x1d9/0x270
[  433.117843][ T6047]  ? __pfx_task_work_run+0x10/0x10
[  433.117898][ T6047]  exit_to_user_mode_loop+0x1fa/0x730
[  433.117914][ T6047]  ? rcu_is_watching+0x15/0xb0
[  433.117938][ T6047]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  433.117951][ T6047]  do_syscall_64+0x353/0x580
[  433.117965][ T6047]  ? trace_irq_disable+0x3b/0x140
[  433.117985][ T6047]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  433.117996][ T6047] RIP: 0033:0x7f5458f9f257
[  433.118011][ T6047] Code: a2 c7 05 9c 44 25 00 00 00 00 00 eb 96 e8 e1 12 00 00 90 31 f6 e9 09 00 00 00 66 0f 1f 84 00 00 00 00 00 b8 a6 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 01 c3 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8
[  433.118022][ T6047] RSP: 002b:00007ffc648103f8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
[  433.118036][ T6047] RAX: 0000000000000000 RBX: 00007f545903445c RCX: 00007f5458f9f257
[  433.118043][ T6047] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffc648104b0
[  433.118050][ T6047] RBP: 00007ffc648104b0 R08: 00007ffc648114b0 R09: 00000000ffffffff
[  433.118057][ T6047] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc64811540
[  433.118064][ T6047] R13: 00007f545903445c R14: 0000000000069b55 R15: 00007ffc64811580
[  433.118083][ T6047]  </TASK>
[  433.119550][ T6047] F2FS-fs (loop2): Stopped filesystem due to reason: 3
[  433.154726][T10265] F2FS-fs (loop0): f2fs_recover_fsync_data: recovery fsync data, check_only: 0
[  433.192796][T10263] F2FS-fs (loop1): f2fs_recover_fsync_data: recovery fsync data, check_only: 0
[  433.278237][T10265] F2FS-fs (loop0): Try to recover 1th superblock, ret: 0
[  433.280993][T10265] F2FS-fs (loop0): Mounted with checkpoint version = 48b305e5
[  433.303659][T10263] F2FS-fs (loop1): Try to recover 1th superblock, ret: 0
[  433.310166][T10263] F2FS-fs (loop1): Mounted with checkpoint version = 48b305e5
[  433.341132][ T6042] CPU: 1 UID: 0 PID: 6042 Comm: syz-executor Not tainted syzkaller #0 PREEMPT(full) 
[  433.341155][ T6042] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
[  433.341163][ T6042] Call Trace:
[  433.341168][ T6042]  <TASK>
[  433.341175][ T6042]  dump_stack_lvl+0xe8/0x150
[  433.341200][ T6042]  f2fs_stop_checkpoint+0x3f6/0x5d0
[  433.341219][ T6042]  f2fs_write_end_io+0x124b/0x1710
[  433.341248][ T6042]  __submit_merged_bio+0x258/0x6a0
[  433.341261][ T6042]  ? rcu_is_watching+0x15/0xb0
[  433.341281][ T6042]  __submit_merged_write_cond+0x3c9/0x4e0
[  433.341298][ T6042]  ? __pfx___submit_merged_write_cond+0x10/0x10
[  433.341325][ T6042]  f2fs_write_data_pages+0x2a27/0x36f0
[  433.341359][ T6042]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  433.341424][ T6042]  ? __pfx_hlock_conflict+0x10/0x10
[  433.341437][ T6042]  ? __bfs+0x153/0x290
[  433.341449][ T6042]  ? __pfx_hlock_conflict+0x10/0x10
[  433.341469][ T6042]  ? lockdep_unlock+0x5d/0xd0
[  433.341480][ T6042]  ? __lock_acquire+0x13e8/0x2cf0
[  433.341509][ T6042]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  433.341525][ T6042]  do_writepages+0x338/0x560
[  433.341548][ T6042]  ? do_raw_spin_unlock+0x4d/0x210
[  433.341563][ T6042]  filemap_fdatawrite+0x1e9/0x2f0
[  433.341581][ T6042]  ? __pfx_filemap_fdatawrite+0x10/0x10
[  433.341627][ T6042]  ? do_raw_spin_unlock+0x4d/0x210
[  433.341646][ T6042]  f2fs_sync_dirty_inodes+0x30e/0x830
[  433.341675][ T6042]  f2fs_write_checkpoint+0xa3d/0x2710
[  433.341716][ T6042]  ? __pfx_f2fs_write_checkpoint+0x10/0x10
[  433.341768][ T6042]  kill_f2fs_super+0x2dd/0x700
[  433.341793][ T6042]  ? __pfx_kill_f2fs_super+0x10/0x10
[  433.341820][ T6042]  ? call_rcu+0x64b/0x8b0
[  433.341862][ T6042]  ? lockdep_hardirqs_on+0x7a/0x110
[  433.341887][ T6042]  deactivate_locked_super+0xbc/0x110
[  433.341916][ T6042]  cleanup_mnt+0x3d3/0x460
[  433.341936][ T6042]  task_work_run+0x1d9/0x270
[  433.341960][ T6042]  ? __pfx_task_work_run+0x10/0x10
[  433.341984][ T6042]  exit_to_user_mode_loop+0x1fa/0x730
[  433.342002][ T6042]  ? rcu_is_watching+0x15/0xb0
[  433.342023][ T6042]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  433.342037][ T6042]  do_syscall_64+0x353/0x580
[  433.342049][ T6042]  ? trace_irq_disable+0x3b/0x140
[  433.342068][ T6042]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  433.342079][ T6042] RIP: 0033:0x7f472c39f257
[  433.342093][ T6042] Code: a2 c7 05 9c 44 25 00 00 00 00 00 eb 96 e8 e1 12 00 00 90 31 f6 e9 09 00 00 00 66 0f 1f 84 00 00 00 00 00 b8 a6 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 01 c3 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8
[  433.342104][ T6042] RSP: 002b:00007ffccbd49c88 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
[  433.342119][ T6042] RAX: 0000000000000000 RBX: 00007f472c43445c RCX: 00007f472c39f257
[  433.342128][ T6042] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffccbd49d40
[  433.342137][ T6042] RBP: 00007ffccbd49d40 R08: 00007ffccbd4ad40 R09: 00000000ffffffff
[  433.342146][ T6042] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffccbd4add0
[  433.342153][ T6042] R13: 00007f472c43445c R14: 0000000000069c33 R15: 00007ffccbd4ae10
[  433.342177][ T6042]  </TASK>
[  433.345326][ T6042] F2FS-fs (loop0): Stopped filesystem due to reason: 3
[  433.488019][ T6048] CPU: 0 UID: 0 PID: 6048 Comm: syz-executor Not tainted syzkaller #0 PREEMPT(full) 
[  433.488045][ T6048] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
[  433.488053][ T6048] Call Trace:
[  433.488060][ T6048]  <TASK>
[  433.488066][ T6048]  dump_stack_lvl+0xe8/0x150
[  433.488090][ T6048]  f2fs_stop_checkpoint+0x3f6/0x5d0
[  433.488113][ T6048]  f2fs_write_end_io+0x124b/0x1710
[  433.488144][ T6048]  __submit_merged_bio+0x258/0x6a0
[  433.488162][ T6048]  ? rcu_is_watching+0x15/0xb0
[  433.488189][ T6048]  __submit_merged_write_cond+0x3c9/0x4e0
[  433.488215][ T6048]  ? __pfx___submit_merged_write_cond+0x10/0x10
[  433.488245][ T6048]  f2fs_write_data_pages+0x2a27/0x36f0
[  433.488286][ T6048]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  433.488331][ T6048]  ? __pfx_hlock_conflict+0x10/0x10
[  433.488344][ T6048]  ? __bfs+0x153/0x290
[  433.488383][ T6048]  ? __pfx_hlock_conflict+0x10/0x10
[  433.488410][ T6048]  ? lockdep_unlock+0x5d/0xd0
[  433.488425][ T6048]  ? __lock_acquire+0x13e8/0x2cf0
[  433.488463][ T6048]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  433.488482][ T6048]  do_writepages+0x338/0x560
[  433.488511][ T6048]  ? do_raw_spin_unlock+0x4d/0x210
[  433.488530][ T6048]  filemap_fdatawrite+0x1e9/0x2f0
[  433.488553][ T6048]  ? __pfx_filemap_fdatawrite+0x10/0x10
[  433.488596][ T6048]  ? do_raw_spin_unlock+0x4d/0x210
[  433.488615][ T6048]  f2fs_sync_dirty_inodes+0x30e/0x830
[  433.488648][ T6048]  f2fs_write_checkpoint+0xa3d/0x2710
[  433.488692][ T6048]  ? __pfx_f2fs_write_checkpoint+0x10/0x10
[  433.488751][ T6048]  kill_f2fs_super+0x2dd/0x700
[  433.488780][ T6048]  ? __pfx_kill_f2fs_super+0x10/0x10
[  433.488817][ T6048]  ? call_rcu+0x64b/0x8b0
[  433.488863][ T6048]  ? lockdep_hardirqs_on+0x7a/0x110
[  433.488891][ T6048]  deactivate_locked_super+0xbc/0x110
[  433.488914][ T6048]  cleanup_mnt+0x3d3/0x460
[  433.488933][ T6048]  task_work_run+0x1d9/0x270
[  433.488957][ T6048]  ? __pfx_task_work_run+0x10/0x10
[  433.488985][ T6048]  exit_to_user_mode_loop+0x1fa/0x730
[  433.489003][ T6048]  ? rcu_is_watching+0x15/0xb0
[  433.489024][ T6048]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  433.489040][ T6048]  do_syscall_64+0x353/0x580
[  433.489057][ T6048]  ? trace_irq_disable+0x3b/0x140
[  433.489079][ T6048]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  433.489094][ T6048] RIP: 0033:0x7f02fe39f257
[  433.489110][ T6048] Code: a2 c7 05 9c 44 25 00 00 00 00 00 eb 96 e8 e1 12 00 00 90 31 f6 e9 09 00 00 00 66 0f 1f 84 00 00 00 00 00 b8 a6 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 01 c3 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8
[  433.489122][ T6048] RSP: 002b:00007fff9b96aa28 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
[  433.489140][ T6048] RAX: 0000000000000000 RBX: 00007f02fe43445c RCX: 00007f02fe39f257
[  433.489150][ T6048] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007fff9b96aae0
[  433.489159][ T6048] RBP: 00007fff9b96aae0 R08: 00007fff9b96bae0 R09: 00000000ffffffff
[  433.489169][ T6048] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fff9b96bb70
[  433.489178][ T6048] R13: 00007f02fe43445c R14: 0000000000069c4c R15: 00007fff9b96bbb0
[  433.489202][ T6048]  </TASK>
[  433.627646][ T6048] F2FS-fs (loop1): Stopped filesystem due to reason: 3
[  433.768995][ T6185] loop1: lost filesystem error report for type 5 error -108
[  433.942339][T10274] set_capacity_and_notify: 3 callbacks suppressed
[  433.942352][T10274] loop2: detected capacity change from 0 to 40427
[  433.954915][T10274] F2FS-fs (loop2): Small segment_count (9 < 1 * 24)
[  433.971292][T10274] F2FS-fs (loop2): Can't find valid F2FS filesystem in 1th superblock
[  434.019113][T10274] F2FS-fs (loop2): f2fs_recover_fsync_data: recovery fsync data, check_only: 0
[  434.027669][T10274] F2FS-fs (loop2): Try to recover 1th superblock, ret: 0
[  434.031298][T10274] F2FS-fs (loop2): Mounted with checkpoint version = 48b305e5
[  434.055248][ T6047] CPU: 0 UID: 0 PID: 6047 Comm: syz-executor Not tainted syzkaller #0 PREEMPT(full) 
[  434.055279][ T6047] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
[  434.055290][ T6047] Call Trace:
[  434.055299][ T6047]  <TASK>
[  434.055308][ T6047]  dump_stack_lvl+0xe8/0x150
[  434.055340][ T6047]  f2fs_stop_checkpoint+0x3f6/0x5d0
[  434.055368][ T6047]  f2fs_write_end_io+0x124b/0x1710
[  434.055410][ T6047]  __submit_merged_bio+0x258/0x6a0
[  434.055429][ T6047]  ? rcu_is_watching+0x15/0xb0
[  434.055460][ T6047]  __submit_merged_write_cond+0x3c9/0x4e0
[  434.055488][ T6047]  ? __pfx___submit_merged_write_cond+0x10/0x10
[  434.055523][ T6047]  f2fs_write_data_pages+0x2a27/0x36f0
[  434.055545][ T6047]  ? __lock_acquire+0x683/0x2cf0
[  434.055605][ T6047]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  434.055656][ T6047]  ? __pfx_hlock_conflict+0x10/0x10
[  434.055670][ T6047]  ? __bfs+0x153/0x290
[  434.055686][ T6047]  ? __pfx_hlock_conflict+0x10/0x10
[  434.055710][ T6047]  ? lockdep_unlock+0x5d/0xd0
[  434.055725][ T6047]  ? __lock_acquire+0x13e8/0x2cf0
[  434.055757][ T6047]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  434.055776][ T6047]  do_writepages+0x338/0x560
[  434.055829][ T6047]  ? do_raw_spin_unlock+0x4d/0x210
[  434.055847][ T6047]  filemap_fdatawrite+0x1e9/0x2f0
[  434.055868][ T6047]  ? __pfx_filemap_fdatawrite+0x10/0x10
[  434.055938][ T6047]  ? do_raw_spin_unlock+0x4d/0x210
[  434.055959][ T6047]  f2fs_sync_dirty_inodes+0x30e/0x830
[  434.055992][ T6047]  f2fs_write_checkpoint+0xa3d/0x2710
[  434.056037][ T6047]  ? __pfx_f2fs_write_checkpoint+0x10/0x10
[  434.056097][ T6047]  kill_f2fs_super+0x2dd/0x700
[  434.056124][ T6047]  ? __pfx_kill_f2fs_super+0x10/0x10
[  434.056153][ T6047]  ? call_rcu+0x64b/0x8b0
[  434.056167][ T6047]  ? lockdep_hardirqs_on+0x7a/0x110
[  434.056194][ T6047]  deactivate_locked_super+0xbc/0x110
[  434.056217][ T6047]  cleanup_mnt+0x3d3/0x460
[  434.056242][ T6047]  task_work_run+0x1d9/0x270
[  434.056267][ T6047]  ? __pfx_task_work_run+0x10/0x10
[  434.056294][ T6047]  exit_to_user_mode_loop+0x1fa/0x730
[  434.056313][ T6047]  ? rcu_is_watching+0x15/0xb0
[  434.056334][ T6047]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  434.056350][ T6047]  do_syscall_64+0x353/0x580
[  434.056367][ T6047]  ? trace_irq_disable+0x3b/0x140
[  434.056389][ T6047]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  434.056403][ T6047] RIP: 0033:0x7f5458f9f257
[  434.056419][ T6047] 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
[  434.056431][ T6047] RSP: 002b:00007ffc648103f8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
[  434.056448][ T6047] RAX: 0000000000000000 RBX: 00007f545903445c RCX: 00007f5458f9f257
[  434.056458][ T6047] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffc648104b0
[  434.056467][ T6047] RBP: 00007ffc648104b0 R08: 00007ffc648114b0 R09: 00000000ffffffff
[  434.056477][ T6047] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc64811540
[  434.056486][ T6047] R13: 00007f545903445c R14: 0000000000069f0d R15: 00007ffc64811580
[  434.056510][ T6047]  </TASK>
[  434.056770][ T6047] F2FS-fs (loop2): Stopped filesystem due to reason: 3
[  434.230153][T10276] loop0: detected capacity change from 0 to 40427
[  434.292921][T10276] F2FS-fs (loop0): Small segment_count (9 < 1 * 24)
[  434.303071][T10276] F2FS-fs (loop0): Can't find valid F2FS filesystem in 1th superblock
[  434.337630][T10278] loop1: detected capacity change from 0 to 40427
[  434.342615][T10278] F2FS-fs (loop1): Small segment_count (9 < 1 * 24)
[  434.345295][T10278] F2FS-fs (loop1): Can't find valid F2FS filesystem in 1th superblock
[  434.423174][T10278] F2FS-fs (loop1): f2fs_recover_fsync_data: recovery fsync data, check_only: 0
[  434.430491][T10278] F2FS-fs (loop1): Try to recover 1th superblock, ret: 0
[  434.433386][T10278] F2FS-fs (loop1): Mounted with checkpoint version = 48b305e5
[  434.440104][   T33] kauditd_printk_skb: 14 callbacks suppressed
[  434.440123][   T33] audit: type=1800 audit(1785658953.790:2021): pid=10278 uid=0 auid=4294967295 ses=4294967295 subj=unconfined op=collect_data cause=failed(directio) comm="syz.1.1028" name="file1" dev="loop1" ino=10 res=0 errno=0
[  434.454147][T10276] F2FS-fs (loop0): f2fs_recover_fsync_data: recovery fsync data, check_only: 0
[  434.462721][   T33] audit: type=1800 audit(1785658953.810:2022): pid=10278 uid=0 auid=4294967295 ses=4294967295 subj=unconfined op=collect_data cause=failed(directio) comm="syz.1.1028" name="file1" dev="loop1" ino=10 res=0 errno=0
[  434.467193][T10276] F2FS-fs (loop0): Try to recover 1th superblock, ret: 0
[  434.474470][T10276] F2FS-fs (loop0): Mounted with checkpoint version = 48b305e5
[  434.482072][   T33] audit: type=1800 audit(1785658953.840:2023): pid=10276 uid=0 auid=4294967295 ses=4294967295 subj=unconfined op=collect_data cause=failed(directio) comm="syz.0.1027" name="file1" dev="loop0" ino=10 res=0 errno=0
[  434.497066][   T33] audit: type=1800 audit(1785658953.840:2024): pid=10276 uid=0 auid=4294967295 ses=4294967295 subj=unconfined op=collect_data cause=failed(directio) comm="syz.0.1027" name="file1" dev="loop0" ino=10 res=0 errno=0
[  434.512285][ T6048] CPU: 1 UID: 0 PID: 6048 Comm: syz-executor Not tainted syzkaller #0 PREEMPT(full) 
[  434.512308][ T6048] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
[  434.512316][ T6048] Call Trace:
[  434.512323][ T6048]  <TASK>
[  434.512329][ T6048]  dump_stack_lvl+0xe8/0x150
[  434.512355][ T6048]  f2fs_stop_checkpoint+0x3f6/0x5d0
[  434.512378][ T6048]  f2fs_write_end_io+0x124b/0x1710
[  434.512413][ T6048]  __submit_merged_bio+0x258/0x6a0
[  434.512427][ T6048]  ? rcu_is_watching+0x15/0xb0
[  434.512450][ T6048]  __submit_merged_write_cond+0x3c9/0x4e0
[  434.512472][ T6048]  ? __pfx___submit_merged_write_cond+0x10/0x10
[  434.512506][ T6048]  f2fs_write_data_pages+0x2a27/0x36f0
[  434.512550][ T6048]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  434.512602][ T6048]  ? do_raw_spin_lock+0x12b/0x2f0
[  434.512640][ T6048]  ? __pfx_hlock_conflict+0x10/0x10
[  434.512650][ T6048]  ? __bfs+0x153/0x290
[  434.512664][ T6048]  ? __pfx_hlock_conflict+0x10/0x10
[  434.512690][ T6048]  ? lockdep_unlock+0x5d/0xd0
[  434.512702][ T6048]  ? __lock_acquire+0x13e8/0x2cf0
[  434.512738][ T6048]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  434.512786][ T6048]  do_writepages+0x338/0x560
[  434.512814][ T6048]  ? do_raw_spin_unlock+0x4d/0x210
[  434.512831][ T6048]  filemap_fdatawrite+0x1e9/0x2f0
[  434.512850][ T6048]  ? __pfx_filemap_fdatawrite+0x10/0x10
[  434.512900][ T6048]  ? do_raw_spin_unlock+0x4d/0x210
[  434.512917][ T6048]  f2fs_sync_dirty_inodes+0x30e/0x830
[  434.512946][ T6048]  f2fs_write_checkpoint+0xa3d/0x2710
[  434.512989][ T6048]  ? __pfx_f2fs_write_checkpoint+0x10/0x10
[  434.513047][ T6048]  kill_f2fs_super+0x2dd/0x700
[  434.513070][ T6048]  ? __pfx_kill_f2fs_super+0x10/0x10
[  434.513096][ T6048]  ? call_rcu+0x64b/0x8b0
[  434.513107][ T6048]  ? lockdep_hardirqs_on+0x7a/0x110
[  434.513133][ T6048]  deactivate_locked_super+0xbc/0x110
[  434.513153][ T6048]  cleanup_mnt+0x3d3/0x460
[  434.513170][ T6048]  task_work_run+0x1d9/0x270
[  434.513191][ T6048]  ? __pfx_task_work_run+0x10/0x10
[  434.513216][ T6048]  exit_to_user_mode_loop+0x1fa/0x730
[  434.513232][ T6048]  ? rcu_is_watching+0x15/0xb0
[  434.513251][ T6048]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  434.513265][ T6048]  do_syscall_64+0x353/0x580
[  434.513278][ T6048]  ? trace_irq_disable+0x3b/0x140
[  434.513300][ T6048]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  434.513312][ T6048] RIP: 0033:0x7f02fe39f257
[  434.513326][ T6048] Code: a2 c7 05 9c 44 25 00 00 00 00 00 eb 96 e8 e1 12 00 00 90 31 f6 e9 09 00 00 00 66 0f 1f 84 00 00 00 00 00 b8 a6 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 01 c3 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8
[  434.513337][ T6048] RSP: 002b:00007fff9b96aa28 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
[  434.513351][ T6048] RAX: 0000000000000000 RBX: 00007f02fe43445c RCX: 00007f02fe39f257
[  434.513360][ T6048] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007fff9b96aae0
[  434.513367][ T6048] RBP: 00007fff9b96aae0 R08: 00007fff9b96bae0 R09: 00000000ffffffff
[  434.513375][ T6048] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fff9b96bb70
[  434.513382][ T6048] R13: 00007f02fe43445c R14: 000000000006a0ba R15: 00007fff9b96bbb0
[  434.513405][ T6048]  </TASK>
[  434.517212][ T6042] CPU: 1 UID: 0 PID: 6042 Comm: syz-executor Not tainted syzkaller #0 PREEMPT(full) 
[  434.517238][ T6042] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
[  434.517247][ T6042] Call Trace:
[  434.517253][ T6042]  <TASK>
[  434.517260][ T6042]  dump_stack_lvl+0xe8/0x150
[  434.517286][ T6042]  f2fs_stop_checkpoint+0x3f6/0x5d0
[  434.517311][ T6042]  f2fs_write_end_io+0x124b/0x1710
[  434.517349][ T6042]  __submit_merged_bio+0x258/0x6a0
[  434.517366][ T6042]  ? rcu_is_watching+0x15/0xb0
[  434.517393][ T6042]  __submit_merged_write_cond+0x3c9/0x4e0
[  434.517418][ T6042]  ? __pfx___submit_merged_write_cond+0x10/0x10
[  434.517456][ T6042]  f2fs_write_data_pages+0x2a27/0x36f0
[  434.517503][ T6042]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  434.517559][ T6042]  ? __pfx_hlock_conflict+0x10/0x10
[  434.517572][ T6042]  ? __bfs+0x153/0x290
[  434.517588][ T6042]  ? __pfx_hlock_conflict+0x10/0x10
[  434.517641][ T6042]  ? lockdep_unlock+0x5d/0xd0
[  434.517658][ T6042]  ? __lock_acquire+0x13e8/0x2cf0
[  434.517699][ T6042]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  434.517720][ T6042]  do_writepages+0x338/0x560
[  434.517748][ T6042]  ? do_raw_spin_unlock+0x4d/0x210
[  434.517797][ T6042]  filemap_fdatawrite+0x1e9/0x2f0
[  434.517820][ T6042]  ? __pfx_filemap_fdatawrite+0x10/0x10
[  434.517874][ T6042]  ? do_raw_spin_unlock+0x4d/0x210
[  434.517893][ T6042]  f2fs_sync_dirty_inodes+0x30e/0x830
[  434.517928][ T6042]  f2fs_write_checkpoint+0xa3d/0x2710
[  434.517976][ T6042]  ? __pfx_f2fs_write_checkpoint+0x10/0x10
[  434.518043][ T6042]  kill_f2fs_super+0x2dd/0x700
[  434.518071][ T6042]  ? __pfx_kill_f2fs_super+0x10/0x10
[  434.518101][ T6042]  ? call_rcu+0x64b/0x8b0
[  434.518114][ T6042]  ? lockdep_hardirqs_on+0x7a/0x110
[  434.518144][ T6042]  deactivate_locked_super+0xbc/0x110
[  434.518167][ T6042]  cleanup_mnt+0x3d3/0x460
[  434.518187][ T6042]  task_work_run+0x1d9/0x270
[  434.518211][ T6042]  ? __pfx_task_work_run+0x10/0x10
[  434.518239][ T6042]  exit_to_user_mode_loop+0x1fa/0x730
[  434.518257][ T6042]  ? rcu_is_watching+0x15/0xb0
[  434.518277][ T6042]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  434.518293][ T6042]  do_syscall_64+0x353/0x580
[  434.518309][ T6042]  ? trace_irq_disable+0x3b/0x140
[  434.518333][ T6042]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  434.518347][ T6042] RIP: 0033:0x7f472c39f257
[  434.518363][ T6042] 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
[  434.518376][ T6042] RSP: 002b:00007ffccbd49c88 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
[  434.518393][ T6042] RAX: 0000000000000000 RBX: 00007f472c43445c RCX: 00007f472c39f257
[  434.518403][ T6042] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffccbd49d40
[  434.518412][ T6042] RBP: 00007ffccbd49d40 R08: 00007ffccbd4ad40 R09: 00000000ffffffff
[  434.518422][ T6042] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffccbd4add0
[  434.518432][ T6042] R13: 00007f472c43445c R14: 000000000006a0de R15: 00007ffccbd4ae10
[  434.518458][ T6042]  </TASK>
[  434.521049][ T6048] F2FS-fs (loop1): Stopped filesystem due to reason: 3
[  434.525557][ T6042] F2FS-fs (loop0): Stopped filesystem due to reason: 3
[  435.037710][T10286] loop2: detected capacity change from 0 to 40427
[  435.062633][T10286] F2FS-fs (loop2): Small segment_count (9 < 1 * 24)
[  435.076010][T10286] F2FS-fs (loop2): Can't find valid F2FS filesystem in 1th superblock
[  435.162834][T10286] F2FS-fs (loop2): f2fs_recover_fsync_data: recovery fsync data, check_only: 0
[  435.184037][T10286] F2FS-fs (loop2): Try to recover 1th superblock, ret: 0
[  435.190170][T10286] F2FS-fs (loop2): Mounted with checkpoint version = 48b305e5
[  435.203017][   T33] audit: type=1800 audit(1785658954.560:2025): pid=10286 uid=0 auid=4294967295 ses=4294967295 subj=unconfined op=collect_data cause=failed(directio) comm="syz.2.1029" name="file1" dev="loop2" ino=10 res=0 errno=0
[  435.222095][   T33] audit: type=1800 audit(1785658954.580:2026): pid=10286 uid=0 auid=4294967295 ses=4294967295 subj=unconfined op=collect_data cause=failed(directio) comm="syz.2.1029" name="file1" dev="loop2" ino=10 res=0 errno=0
[  435.266343][ T6047] CPU: 1 UID: 0 PID: 6047 Comm: syz-executor Not tainted syzkaller #0 PREEMPT(full) 
[  435.266370][ T6047] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
[  435.266378][ T6047] Call Trace:
[  435.266385][ T6047]  <TASK>
[  435.266391][ T6047]  dump_stack_lvl+0xe8/0x150
[  435.266415][ T6047]  f2fs_stop_checkpoint+0x3f6/0x5d0
[  435.266438][ T6047]  f2fs_write_end_io+0x124b/0x1710
[  435.266472][ T6047]  __submit_merged_bio+0x258/0x6a0
[  435.266487][ T6047]  ? rcu_is_watching+0x15/0xb0
[  435.266510][ T6047]  __submit_merged_write_cond+0x3c9/0x4e0
[  435.266534][ T6047]  ? __pfx___submit_merged_write_cond+0x10/0x10
[  435.266564][ T6047]  f2fs_write_data_pages+0x2a27/0x36f0
[  435.266583][ T6047]  ? __lock_acquire+0x683/0x2cf0
[  435.266625][ T6047]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  435.266678][ T6047]  ? __pfx_hlock_conflict+0x10/0x10
[  435.266691][ T6047]  ? __bfs+0x153/0x290
[  435.266740][ T6047]  ? __pfx_hlock_conflict+0x10/0x10
[  435.266761][ T6047]  ? lockdep_unlock+0x5d/0xd0
[  435.266794][ T6047]  ? __lock_acquire+0x13e8/0x2cf0
[  435.266827][ T6047]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  435.266845][ T6047]  do_writepages+0x338/0x560
[  435.266873][ T6047]  ? do_raw_spin_unlock+0x4d/0x210
[  435.266890][ T6047]  filemap_fdatawrite+0x1e9/0x2f0
[  435.266910][ T6047]  ? __pfx_filemap_fdatawrite+0x10/0x10
[  435.266953][ T6047]  ? do_raw_spin_unlock+0x4d/0x210
[  435.266973][ T6047]  f2fs_sync_dirty_inodes+0x30e/0x830
[  435.267001][ T6047]  f2fs_write_checkpoint+0xa3d/0x2710
[  435.267039][ T6047]  ? __pfx_f2fs_write_checkpoint+0x10/0x10
[  435.267095][ T6047]  kill_f2fs_super+0x2dd/0x700
[  435.267120][ T6047]  ? __pfx_kill_f2fs_super+0x10/0x10
[  435.267145][ T6047]  ? call_rcu+0x64b/0x8b0
[  435.267158][ T6047]  ? lockdep_hardirqs_on+0x7a/0x110
[  435.267185][ T6047]  deactivate_locked_super+0xbc/0x110
[  435.267206][ T6047]  cleanup_mnt+0x3d3/0x460
[  435.267224][ T6047]  task_work_run+0x1d9/0x270
[  435.267246][ T6047]  ? __pfx_task_work_run+0x10/0x10
[  435.267273][ T6047]  exit_to_user_mode_loop+0x1fa/0x730
[  435.267291][ T6047]  ? rcu_is_watching+0x15/0xb0
[  435.267311][ T6047]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  435.267325][ T6047]  do_syscall_64+0x353/0x580
[  435.267340][ T6047]  ? trace_irq_disable+0x3b/0x140
[  435.267361][ T6047]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  435.267374][ T6047] RIP: 0033:0x7f5458f9f257
[  435.267390][ T6047] 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
[  435.267403][ T6047] RSP: 002b:00007ffc648103f8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
[  435.267419][ T6047] RAX: 0000000000000000 RBX: 00007f545903445c RCX: 00007f5458f9f257
[  435.267429][ T6047] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffc648104b0
[  435.267437][ T6047] RBP: 00007ffc648104b0 R08: 00007ffc648114b0 R09: 00000000ffffffff
[  435.267448][ T6047] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc64811540
[  435.267457][ T6047] R13: 00007f545903445c R14: 000000000006a3c4 R15: 00007ffc64811580
[  435.267476][ T6047]  </TASK>
[  435.300176][ T6047] F2FS-fs (loop2): Stopped filesystem due to reason: 3
[  435.483793][T10288] loop1: detected capacity change from 0 to 40427
[  435.489488][T10292] loop0: detected capacity change from 0 to 40427
[  435.507068][T10292] F2FS-fs (loop0): Small segment_count (9 < 1 * 24)
[  435.512758][T10288] F2FS-fs (loop1): Small segment_count (9 < 1 * 24)
[  435.525836][T10288] F2FS-fs (loop1): Can't find valid F2FS filesystem in 1th superblock
[  435.542311][T10292] F2FS-fs (loop0): Can't find valid F2FS filesystem in 1th superblock
[  435.644269][T10292] F2FS-fs (loop0): f2fs_recover_fsync_data: recovery fsync data, check_only: 0
[  435.651872][T10292] F2FS-fs (loop0): Try to recover 1th superblock, ret: 0
[  435.654881][T10292] F2FS-fs (loop0): Mounted with checkpoint version = 48b305e5
[  435.660106][   T33] audit: type=1800 audit(1785658955.010:2027): pid=10292 uid=0 auid=4294967295 ses=4294967295 subj=unconfined op=collect_data cause=failed(directio) comm="syz.0.1031" name="file1" dev="loop0" ino=10 res=0 errno=0
[  435.674504][   T33] audit: type=1800 audit(1785658955.020:2028): pid=10292 uid=0 auid=4294967295 ses=4294967295 subj=unconfined op=collect_data cause=failed(directio) comm="syz.0.1031" name="file1" dev="loop0" ino=10 res=0 errno=0
[  435.686419][T10288] F2FS-fs (loop1): f2fs_recover_fsync_data: recovery fsync data, check_only: 0
[  435.697984][T10288] F2FS-fs (loop1): Try to recover 1th superblock, ret: 0
[  435.698441][ T6042] CPU: 1 UID: 0 PID: 6042 Comm: syz-executor Not tainted syzkaller #0 PREEMPT(full) 
[  435.698463][ T6042] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
[  435.698473][ T6042] Call Trace:
[  435.698480][ T6042]  <TASK>
[  435.698487][ T6042]  dump_stack_lvl+0xe8/0x150
[  435.698513][ T6042]  f2fs_stop_checkpoint+0x3f6/0x5d0
[  435.698535][ T6042]  f2fs_write_end_io+0x124b/0x1710
[  435.698567][ T6042]  __submit_merged_bio+0x258/0x6a0
[  435.698582][ T6042]  ? rcu_is_watching+0x15/0xb0
[  435.698619][ T6042]  __submit_merged_write_cond+0x3c9/0x4e0
[  435.698644][ T6042]  ? __pfx___submit_merged_write_cond+0x10/0x10
[  435.698725][ T6042]  f2fs_write_data_pages+0x2a27/0x36f0
[  435.698773][ T6042]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  435.698821][ T6042]  ? __pfx_hlock_conflict+0x10/0x10
[  435.698832][ T6042]  ? __bfs+0x153/0x290
[  435.698866][ T6042]  ? __pfx_hlock_conflict+0x10/0x10
[  435.698892][ T6042]  ? lockdep_unlock+0x5d/0xd0
[  435.698907][ T6042]  ? __lock_acquire+0x13e8/0x2cf0
[  435.698944][ T6042]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  435.698965][ T6042]  do_writepages+0x338/0x560
[  435.698994][ T6042]  ? do_raw_spin_unlock+0x4d/0x210
[  435.699014][ T6042]  filemap_fdatawrite+0x1e9/0x2f0
[  435.699035][ T6042]  ? __pfx_filemap_fdatawrite+0x10/0x10
[  435.699084][ T6042]  ? do_raw_spin_unlock+0x4d/0x210
[  435.699103][ T6042]  f2fs_sync_dirty_inodes+0x30e/0x830
[  435.699135][ T6042]  f2fs_write_checkpoint+0xa3d/0x2710
[  435.699181][ T6042]  ? __pfx_f2fs_write_checkpoint+0x10/0x10
[  435.699241][ T6042]  kill_f2fs_super+0x2dd/0x700
[  435.699269][ T6042]  ? __pfx_kill_f2fs_super+0x10/0x10
[  435.699298][ T6042]  ? call_rcu+0x64b/0x8b0
[  435.699311][ T6042]  ? lockdep_hardirqs_on+0x7a/0x110
[  435.699339][ T6042]  deactivate_locked_super+0xbc/0x110
[  435.699362][ T6042]  cleanup_mnt+0x3d3/0x460
[  435.699382][ T6042]  task_work_run+0x1d9/0x270
[  435.699408][ T6042]  ? __pfx_task_work_run+0x10/0x10
[  435.699437][ T6042]  exit_to_user_mode_loop+0x1fa/0x730
[  435.699455][ T6042]  ? rcu_is_watching+0x15/0xb0
[  435.699477][ T6042]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  435.699493][ T6042]  do_syscall_64+0x353/0x580
[  435.699511][ T6042]  ? trace_irq_disable+0x3b/0x140
[  435.699534][ T6042]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  435.699550][ T6042] RIP: 0033:0x7f472c39f257
[  435.699567][ T6042] 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
[  435.699580][ T6042] RSP: 002b:00007ffccbd49c88 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
[  435.699602][ T6042] RAX: 0000000000000000 RBX: 00007f472c43445c RCX: 00007f472c39f257
[  435.699612][ T6042] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffccbd49d40
[  435.699620][ T6042] RBP: 00007ffccbd49d40 R08: 00007ffccbd4ad40 R09: 00000000ffffffff
[  435.699630][ T6042] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffccbd4add0
[  435.699639][ T6042] R13: 00007f472c43445c R14: 000000000006a57c R15: 00007ffccbd4ae10
[  435.699664][ T6042]  </TASK>
[  435.715116][ T6042] F2FS-fs (loop0): Stopped filesystem due to reason: 3
[  435.716616][T10288] F2FS-fs (loop1): Mounted with checkpoint version = 48b305e5
[  435.723982][   T33] audit: type=1800 audit(1785658955.080:2029): pid=10288 uid=0 auid=4294967295 ses=4294967295 subj=unconfined op=collect_data cause=failed(directio) comm="syz.1.1030" name="file1" dev="loop1" ino=10 res=0 errno=0
[  435.852654][ T6048] CPU: 1 UID: 0 PID: 6048 Comm: syz-executor Not tainted syzkaller #0 PREEMPT(full) 
[  435.852709][ T6048] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
[  435.852718][ T6048] Call Trace:
[  435.852727][ T6048]  <TASK>
[  435.852734][ T6048]  dump_stack_lvl+0xe8/0x150
[  435.852760][ T6048]  f2fs_stop_checkpoint+0x3f6/0x5d0
[  435.852782][ T6048]  f2fs_write_end_io+0x124b/0x1710
[  435.852814][ T6048]  __submit_merged_bio+0x258/0x6a0
[  435.852828][ T6048]  ? rcu_is_watching+0x15/0xb0
[  435.852851][ T6048]  __submit_merged_write_cond+0x3c9/0x4e0
[  435.852872][ T6048]  ? __pfx___submit_merged_write_cond+0x10/0x10
[  435.852902][ T6048]  f2fs_write_data_pages+0x2a27/0x36f0
[  435.852941][ T6048]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  435.852984][ T6048]  ? __pfx_hlock_conflict+0x10/0x10
[  435.852996][ T6048]  ? __bfs+0x153/0x290
[  435.853011][ T6048]  ? __pfx_hlock_conflict+0x10/0x10
[  435.853033][ T6048]  ? lockdep_unlock+0x5d/0xd0
[  435.853046][ T6048]  ? __lock_acquire+0x13e8/0x2cf0
[  435.853078][ T6048]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  435.853095][ T6048]  do_writepages+0x338/0x560
[  435.853120][ T6048]  ? do_raw_spin_unlock+0x4d/0x210
[  435.853136][ T6048]  filemap_fdatawrite+0x1e9/0x2f0
[  435.853156][ T6048]  ? __pfx_filemap_fdatawrite+0x10/0x10
[  435.853200][ T6048]  ? do_raw_spin_unlock+0x4d/0x210
[  435.853216][ T6048]  f2fs_sync_dirty_inodes+0x30e/0x830
[  435.853244][ T6048]  f2fs_write_checkpoint+0xa3d/0x2710
[  435.853281][ T6048]  ? __pfx_f2fs_write_checkpoint+0x10/0x10
[  435.853332][ T6048]  kill_f2fs_super+0x2dd/0x700
[  435.853354][ T6048]  ? __pfx_kill_f2fs_super+0x10/0x10
[  435.853378][ T6048]  ? call_rcu+0x64b/0x8b0
[  435.853389][ T6048]  ? lockdep_hardirqs_on+0x7a/0x110
[  435.853413][ T6048]  deactivate_locked_super+0xbc/0x110
[  435.853432][ T6048]  cleanup_mnt+0x3d3/0x460
[  435.853449][ T6048]  task_work_run+0x1d9/0x270
[  435.853470][ T6048]  ? __pfx_task_work_run+0x10/0x10
[  435.853493][ T6048]  exit_to_user_mode_loop+0x1fa/0x730
[  435.853509][ T6048]  ? rcu_is_watching+0x15/0xb0
[  435.853526][ T6048]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  435.853540][ T6048]  do_syscall_64+0x353/0x580
[  435.853554][ T6048]  ? trace_irq_disable+0x3b/0x140
[  435.853574][ T6048]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  435.853586][ T6048] RIP: 0033:0x7f02fe39f257
[  435.853600][ T6048] Code: a2 c7 05 9c 44 25 00 00 00 00 00 eb 96 e8 e1 12 00 00 90 31 f6 e9 09 00 00 00 66 0f 1f 84 00 00 00 00 00 b8 a6 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 01 c3 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8
[  435.853612][ T6048] RSP: 002b:00007fff9b96aa28 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
[  435.853626][ T6048] RAX: 0000000000000000 RBX: 00007f02fe43445c RCX: 00007f02fe39f257
[  435.853635][ T6048] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007fff9b96aae0
[  435.853643][ T6048] RBP: 00007fff9b96aae0 R08: 00007fff9b96bae0 R09: 00000000ffffffff
[  435.853651][ T6048] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fff9b96bb70
[  435.853659][ T6048] R13: 00007f02fe43445c R14: 000000000006a616 R15: 00007fff9b96bbb0
[  435.853707][ T6048]  </TASK>
[  435.853714][ T6048] F2FS-fs (loop1): Stopped filesystem due to reason: 3
[  435.880733][   T33] audit: type=1800 audit(1785658955.180:2030): pid=10299 uid=0 auid=4294967295 ses=4294967295 subj=unconfined op=collect_data cause=failed(directio) comm="syz.1.1030" name="file1" dev="loop1" ino=10 res=0 errno=0
[  436.249030][T10298] loop2: detected capacity change from 0 to 40427
[  436.253597][T10298] F2FS-fs (loop2): Small segment_count (9 < 1 * 24)
[  436.259258][T10298] F2FS-fs (loop2): Can't find valid F2FS filesystem in 1th superblock
[  436.345187][T10298] F2FS-fs (loop2): f2fs_recover_fsync_data: recovery fsync data, check_only: 0
[  436.352865][T10298] F2FS-fs (loop2): Try to recover 1th superblock, ret: 0
[  436.355020][T10298] F2FS-fs (loop2): Mounted with checkpoint version = 48b305e5
[  436.393543][ T6047] CPU: 0 UID: 0 PID: 6047 Comm: syz-executor Not tainted syzkaller #0 PREEMPT(full) 
[  436.393561][ T6047] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
[  436.393567][ T6047] Call Trace:
[  436.393572][ T6047]  <TASK>
[  436.393576][ T6047]  dump_stack_lvl+0xe8/0x150
[  436.393597][ T6047]  f2fs_stop_checkpoint+0x3f6/0x5d0
[  436.393613][ T6047]  f2fs_write_end_io+0x124b/0x1710
[  436.393669][ T6047]  __submit_merged_bio+0x258/0x6a0
[  436.393681][ T6047]  ? rcu_is_watching+0x15/0xb0
[  436.393717][ T6047]  __submit_merged_write_cond+0x3c9/0x4e0
[  436.393732][ T6047]  ? __pfx___submit_merged_write_cond+0x10/0x10
[  436.393754][ T6047]  f2fs_write_data_pages+0x2a27/0x36f0
[  436.393782][ T6047]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  436.393815][ T6047]  ? __pfx_hlock_conflict+0x10/0x10
[  436.393823][ T6047]  ? __bfs+0x153/0x290
[  436.393834][ T6047]  ? __pfx_hlock_conflict+0x10/0x10
[  436.393850][ T6047]  ? lockdep_unlock+0x5d/0xd0
[  436.393860][ T6047]  ? __lock_acquire+0x13e8/0x2cf0
[  436.393883][ T6047]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  436.393895][ T6047]  do_writepages+0x338/0x560
[  436.393914][ T6047]  ? do_raw_spin_unlock+0x4d/0x210
[  436.393925][ T6047]  filemap_fdatawrite+0x1e9/0x2f0
[  436.393940][ T6047]  ? __pfx_filemap_fdatawrite+0x10/0x10
[  436.393972][ T6047]  ? do_raw_spin_unlock+0x4d/0x210
[  436.393983][ T6047]  f2fs_sync_dirty_inodes+0x30e/0x830
[  436.394003][ T6047]  f2fs_write_checkpoint+0xa3d/0x2710
[  436.394030][ T6047]  ? __pfx_f2fs_write_checkpoint+0x10/0x10
[  436.394067][ T6047]  kill_f2fs_super+0x2dd/0x700
[  436.394084][ T6047]  ? __pfx_kill_f2fs_super+0x10/0x10
[  436.394102][ T6047]  ? call_rcu+0x64b/0x8b0
[  436.394110][ T6047]  ? lockdep_hardirqs_on+0x7a/0x110
[  436.394127][ T6047]  deactivate_locked_super+0xbc/0x110
[  436.394141][ T6047]  cleanup_mnt+0x3d3/0x460
[  436.394153][ T6047]  task_work_run+0x1d9/0x270
[  436.394168][ T6047]  ? __pfx_task_work_run+0x10/0x10
[  436.394191][ T6047]  exit_to_user_mode_loop+0x1fa/0x730
[  436.394203][ T6047]  ? rcu_is_watching+0x15/0xb0
[  436.394216][ T6047]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  436.394226][ T6047]  do_syscall_64+0x353/0x580
[  436.394236][ T6047]  ? trace_irq_disable+0x3b/0x140
[  436.394251][ T6047]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  436.394260][ T6047] RIP: 0033:0x7f5458f9f257
[  436.394270][ T6047] 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
[  436.394277][ T6047] RSP: 002b:00007ffc648103f8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
[  436.394287][ T6047] RAX: 0000000000000000 RBX: 00007f545903445c RCX: 00007f5458f9f257
[  436.394293][ T6047] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffc648104b0
[  436.394298][ T6047] RBP: 00007ffc648104b0 R08: 00007ffc648114b0 R09: 00000000ffffffff
[  436.394304][ T6047] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc64811540
[  436.394310][ T6047] R13: 00007f545903445c R14: 000000000006a825 R15: 00007ffc64811580
[  436.394324][ T6047]  </TASK>
[  436.451719][ T6047] F2FS-fs (loop2): Stopped filesystem due to reason: 3
[  436.584194][T10305] loop0: detected capacity change from 0 to 40427
[  436.589881][T10305] F2FS-fs (loop0): Small segment_count (9 < 1 * 24)
[  436.595420][T10305] F2FS-fs (loop0): Can't find valid F2FS filesystem in 1th superblock
[  436.631635][T10301] loop1: detected capacity change from 0 to 40427
[  436.652260][T10301] F2FS-fs (loop1): Small segment_count (9 < 1 * 24)
[  436.658897][T10301] F2FS-fs (loop1): Can't find valid F2FS filesystem in 1th superblock
[  436.721201][T10305] F2FS-fs (loop0): f2fs_recover_fsync_data: recovery fsync data, check_only: 0
[  436.741279][T10305] F2FS-fs (loop0): Try to recover 1th superblock, ret: 0
[  436.742124][T10301] F2FS-fs (loop1): f2fs_recover_fsync_data: recovery fsync data, check_only: 0
[  436.745376][T10305] F2FS-fs (loop0): Mounted with checkpoint version = 48b305e5
[  436.752016][T10301] F2FS-fs (loop1): Try to recover 1th superblock, ret: 0
[  436.754931][T10301] F2FS-fs (loop1): Mounted with checkpoint version = 48b305e5
[  436.778117][ T6048] CPU: 1 UID: 0 PID: 6048 Comm: syz-executor Not tainted syzkaller #0 PREEMPT(full) 
[  436.778136][ T6048] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
[  436.778144][ T6048] Call Trace:
[  436.778149][ T6048]  <TASK>
[  436.778154][ T6048]  dump_stack_lvl+0xe8/0x150
[  436.778175][ T6048]  f2fs_stop_checkpoint+0x3f6/0x5d0
[  436.778192][ T6048]  f2fs_write_end_io+0x124b/0x1710
[  436.778215][ T6048]  __submit_merged_bio+0x258/0x6a0
[  436.778226][ T6048]  ? rcu_is_watching+0x15/0xb0
[  436.778244][ T6048]  __submit_merged_write_cond+0x3c9/0x4e0
[  436.778259][ T6048]  ? __pfx___submit_merged_write_cond+0x10/0x10
[  436.778280][ T6048]  f2fs_write_data_pages+0x2a27/0x36f0
[  436.778309][ T6048]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  436.778319][ T6048]  ? __pfx_hlock_conflict+0x10/0x10
[  436.778333][ T6048]  ? __bfs+0x153/0x290
[  436.778344][ T6048]  ? __pfx_usage_match+0x10/0x10
[  436.778369][ T6048]  ? __pfx_hlock_conflict+0x10/0x10
[  436.778376][ T6048]  ? __bfs+0x153/0x290
[  436.778386][ T6048]  ? __pfx_hlock_conflict+0x10/0x10
[  436.778401][ T6048]  ? lockdep_unlock+0x5d/0xd0
[  436.778410][ T6048]  ? __lock_acquire+0x13e8/0x2cf0
[  436.778433][ T6048]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  436.778446][ T6048]  do_writepages+0x338/0x560
[  436.778464][ T6048]  ? do_raw_spin_unlock+0x4d/0x210
[  436.778475][ T6048]  filemap_fdatawrite+0x1e9/0x2f0
[  436.778490][ T6048]  ? __pfx_filemap_fdatawrite+0x10/0x10
[  436.778522][ T6048]  ? do_raw_spin_unlock+0x4d/0x210
[  436.778533][ T6048]  f2fs_sync_dirty_inodes+0x30e/0x830
[  436.778554][ T6048]  f2fs_write_checkpoint+0xa3d/0x2710
[  436.778581][ T6048]  ? __pfx_f2fs_write_checkpoint+0x10/0x10
[  436.778666][ T6048]  kill_f2fs_super+0x2dd/0x700
[  436.778684][ T6048]  ? __pfx_kill_f2fs_super+0x10/0x10
[  436.778702][ T6048]  ? call_rcu+0x64b/0x8b0
[  436.778710][ T6048]  ? lockdep_hardirqs_on+0x7a/0x110
[  436.778728][ T6048]  deactivate_locked_super+0xbc/0x110
[  436.778742][ T6048]  cleanup_mnt+0x3d3/0x460
[  436.778770][ T6048]  task_work_run+0x1d9/0x270
[  436.778787][ T6048]  ? __pfx_task_work_run+0x10/0x10
[  436.778804][ T6048]  exit_to_user_mode_loop+0x1fa/0x730
[  436.778816][ T6048]  ? rcu_is_watching+0x15/0xb0
[  436.778829][ T6048]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  436.778839][ T6048]  do_syscall_64+0x353/0x580
[  436.778849][ T6048]  ? trace_irq_disable+0x3b/0x140
[  436.778864][ T6048]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  436.778872][ T6048] RIP: 0033:0x7f02fe39f257
[  436.778882][ T6048] Code: a2 c7 05 9c 44 25 00 00 00 00 00 eb 96 e8 e1 12 00 00 90 31 f6 e9 09 00 00 00 66 0f 1f 84 00 00 00 00 00 b8 a6 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 01 c3 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8
[  436.778890][ T6048] RSP: 002b:00007fff9b96aa28 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
[  436.778901][ T6048] RAX: 0000000000000000 RBX: 00007f02fe43445c RCX: 00007f02fe39f257
[  436.778907][ T6048] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007fff9b96aae0
[  436.778912][ T6048] RBP: 00007fff9b96aae0 R08: 00007fff9b96bae0 R09: 00000000ffffffff
[  436.778919][ T6048] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fff9b96bb70
[  436.778924][ T6048] R13: 00007f02fe43445c R14: 000000000006a9b6 R15: 00007fff9b96bbb0
[  436.778938][ T6048]  </TASK>
[  436.781860][ T6042] bio_check_eod: 33 callbacks suppressed
[  436.781876][ T6042] syz-executor: attempt to access beyond end of device
[  436.781876][ T6042] loop0: rw=2049, sector=45096, nr_sectors = 8 limit=40427
[  436.790891][ T6048] F2FS-fs (loop1): Stopped filesystem due to reason: 3
[  436.795949][ T6042] CPU: 0 UID: 0 PID: 6042 Comm: syz-executor Not tainted syzkaller #0 PREEMPT(full) 
[  436.795972][ T6042] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
[  436.795981][ T6042] Call Trace:
[  436.795988][ T6042]  <TASK>
[  436.795995][ T6042]  dump_stack_lvl+0xe8/0x150
[  436.796023][ T6042]  f2fs_stop_checkpoint+0x3f6/0x5d0
[  436.796048][ T6042]  f2fs_write_end_io+0x124b/0x1710
[  436.796083][ T6042]  __submit_merged_bio+0x258/0x6a0
[  436.796101][ T6042]  ? rcu_is_watching+0x15/0xb0
[  436.796127][ T6042]  __submit_merged_write_cond+0x3c9/0x4e0
[  436.796152][ T6042]  ? __pfx___submit_merged_write_cond+0x10/0x10
[  436.796186][ T6042]  f2fs_write_data_pages+0x2a27/0x36f0
[  436.796231][ T6042]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  436.796282][ T6042]  ? __pfx_hlock_conflict+0x10/0x10
[  436.796296][ T6042]  ? __bfs+0x153/0x290
[  436.796313][ T6042]  ? __pfx_hlock_conflict+0x10/0x10
[  436.796338][ T6042]  ? lockdep_unlock+0x5d/0xd0
[  436.796354][ T6042]  ? __lock_acquire+0x13e8/0x2cf0
[  436.796390][ T6042]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  436.796410][ T6042]  do_writepages+0x338/0x560
[  436.796437][ T6042]  ? do_raw_spin_unlock+0x4d/0x210
[  436.796456][ T6042]  filemap_fdatawrite+0x1e9/0x2f0
[  436.796477][ T6042]  ? __pfx_filemap_fdatawrite+0x10/0x10
[  436.796529][ T6042]  ? do_raw_spin_unlock+0x4d/0x210
[  436.796571][ T6042]  f2fs_sync_dirty_inodes+0x30e/0x830
[  436.796632][ T6042]  f2fs_write_checkpoint+0xa3d/0x2710
[  436.796676][ T6042]  ? __pfx_f2fs_write_checkpoint+0x10/0x10
[  436.796734][ T6042]  kill_f2fs_super+0x2dd/0x700
[  436.796760][ T6042]  ? __pfx_kill_f2fs_super+0x10/0x10
[  436.796788][ T6042]  ? call_rcu+0x64b/0x8b0
[  436.796802][ T6042]  ? lockdep_hardirqs_on+0x7a/0x110
[  436.796830][ T6042]  deactivate_locked_super+0xbc/0x110
[  436.796859][ T6042]  cleanup_mnt+0x3d3/0x460
[  436.796880][ T6042]  task_work_run+0x1d9/0x270
[  436.796904][ T6042]  ? __pfx_task_work_run+0x10/0x10
[  436.796932][ T6042]  exit_to_user_mode_loop+0x1fa/0x730
[  436.796950][ T6042]  ? rcu_is_watching+0x15/0xb0
[  436.796970][ T6042]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  436.796987][ T6042]  do_syscall_64+0x353/0x580
[  436.797004][ T6042]  ? trace_irq_disable+0x3b/0x140
[  436.797027][ T6042]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  436.797042][ T6042] RIP: 0033:0x7f472c39f257
[  436.797057][ T6042] 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
[  436.797068][ T6042] RSP: 002b:00007ffccbd49c88 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
[  436.797084][ T6042] RAX: 0000000000000000 RBX: 00007f472c43445c RCX: 00007f472c39f257
[  436.797093][ T6042] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffccbd49d40
[  436.797103][ T6042] RBP: 00007ffccbd49d40 R08: 00007ffccbd4ad40 R09: 00000000ffffffff
[  436.797113][ T6042] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffccbd4add0
[  436.797122][ T6042] R13: 00007f472c43445c R14: 000000000006a9b9 R15: 00007ffccbd4ae10
[  436.797144][ T6042]  </TASK>
[  436.798217][ T6042] F2FS-fs (loop0): Stopped filesystem due to reason: 3
[  437.303285][T10311] loop2: detected capacity change from 0 to 40427
[  437.308654][T10311] F2FS-fs (loop2): Small segment_count (9 < 1 * 24)
[  437.313325][T10311] F2FS-fs (loop2): Can't find valid F2FS filesystem in 1th superblock
[  437.391175][T10311] F2FS-fs (loop2): f2fs_recover_fsync_data: recovery fsync data, check_only: 0
[  437.406393][T10311] F2FS-fs (loop2): Try to recover 1th superblock, ret: 0
[  437.419060][T10311] F2FS-fs (loop2): Mounted with checkpoint version = 48b305e5
[  437.432485][T10311] syz.2.1035: attempt to access beyond end of device
[  437.432485][T10311] loop2: rw=2049, sector=53248, nr_sectors = 976 limit=40427
[  437.450378][T10311] syz.2.1035: attempt to access beyond end of device
[  437.450378][T10311] loop2: rw=8423425, sector=54224, nr_sectors = 8 limit=40427
[  437.466455][ T6047] syz-executor: attempt to access beyond end of device
[  437.466455][ T6047] loop2: rw=2049, sector=45096, nr_sectors = 8 limit=40427
[  437.493490][ T6047] CPU: 0 UID: 0 PID: 6047 Comm: syz-executor Not tainted syzkaller #0 PREEMPT(full) 
[  437.493510][ T6047] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
[  437.493519][ T6047] Call Trace:
[  437.493529][ T6047]  <TASK>
[  437.493535][ T6047]  dump_stack_lvl+0xe8/0x150
[  437.493593][ T6047]  f2fs_stop_checkpoint+0x3f6/0x5d0
[  437.493615][ T6047]  f2fs_write_end_io+0x124b/0x1710
[  437.493649][ T6047]  __submit_merged_bio+0x258/0x6a0
[  437.493666][ T6047]  ? rcu_is_watching+0x15/0xb0
[  437.493689][ T6047]  __submit_merged_write_cond+0x3c9/0x4e0
[  437.493712][ T6047]  ? __pfx___submit_merged_write_cond+0x10/0x10
[  437.493749][ T6047]  f2fs_write_data_pages+0x2a27/0x36f0
[  437.493768][ T6047]  ? __lock_acquire+0x683/0x2cf0
[  437.493805][ T6047]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  437.493850][ T6047]  ? __pfx_hlock_conflict+0x10/0x10
[  437.493861][ T6047]  ? __bfs+0x153/0x290
2026/08/02 08:22:36 executed programs: 1027
[  437.493875][ T6047]  ? __pfx_hlock_conflict+0x10/0x10
[  437.493895][ T6047]  ? lockdep_unlock+0x5d/0xd0
[  437.493911][ T6047]  ? __lock_acquire+0x13e8/0x2cf0
[  437.493943][ T6047]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  437.493959][ T6047]  do_writepages+0x338/0x560
[  437.493985][ T6047]  ? do_raw_spin_unlock+0x4d/0x210
[  437.494003][ T6047]  filemap_fdatawrite+0x1e9/0x2f0
[  437.494023][ T6047]  ? __pfx_filemap_fdatawrite+0x10/0x10
[  437.494073][ T6047]  ? do_raw_spin_unlock+0x4d/0x210
[  437.494092][ T6047]  f2fs_sync_dirty_inodes+0x30e/0x830
[  437.494123][ T6047]  f2fs_write_checkpoint+0xa3d/0x2710
[  437.494168][ T6047]  ? __pfx_f2fs_write_checkpoint+0x10/0x10
[  437.494227][ T6047]  kill_f2fs_super+0x2dd/0x700
[  437.494254][ T6047]  ? __pfx_kill_f2fs_super+0x10/0x10
[  437.494282][ T6047]  ? call_rcu+0x64b/0x8b0
[  437.494295][ T6047]  ? lockdep_hardirqs_on+0x7a/0x110
[  437.494320][ T6047]  deactivate_locked_super+0xbc/0x110
[  437.494341][ T6047]  cleanup_mnt+0x3d3/0x460
[  437.494359][ T6047]  task_work_run+0x1d9/0x270
[  437.494382][ T6047]  ? __pfx_task_work_run+0x10/0x10
[  437.494409][ T6047]  exit_to_user_mode_loop+0x1fa/0x730
[  437.494424][ T6047]  ? rcu_is_watching+0x15/0xb0
[  437.494444][ T6047]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  437.494457][ T6047]  do_syscall_64+0x353/0x580
[  437.494473][ T6047]  ? trace_irq_disable+0x3b/0x140
[  437.494491][ T6047]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  437.494506][ T6047] RIP: 0033:0x7f5458f9f257
[  437.494521][ T6047] 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
[  437.494529][ T6047] RSP: 002b:00007ffc648103f8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
[  437.494543][ T6047] RAX: 0000000000000000 RBX: 00007f545903445c RCX: 00007f5458f9f257
[  437.494550][ T6047] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffc648104b0
[  437.494593][ T6047] RBP: 00007ffc648104b0 R08: 00007ffc648114b0 R09: 00000000ffffffff
[  437.494602][ T6047] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc64811540
[  437.494611][ T6047] R13: 00007f545903445c R14: 000000000006ac67 R15: 00007ffc64811580
[  437.494630][ T6047]  </TASK>
[  437.494636][ T6047] F2FS-fs (loop2): Stopped filesystem due to reason: 3
[  437.565267][T10313] F2FS-fs (loop1): Small segment_count (9 < 1 * 24)
[  437.616061][T10313] F2FS-fs (loop1): Can't find valid F2FS filesystem in 1th superblock
[  437.670647][T10313] F2FS-fs (loop1): f2fs_recover_fsync_data: recovery fsync data, check_only: 0
[  437.677886][T10313] F2FS-fs (loop1): Try to recover 1th superblock, ret: 0
[  437.680819][T10313] F2FS-fs (loop1): Mounted with checkpoint version = 48b305e5
[  437.693220][T10313] syz.1.1036: attempt to access beyond end of device
[  437.693220][T10313] loop1: rw=2049, sector=53248, nr_sectors = 976 limit=40427
[  437.704061][T10313] syz.1.1036: attempt to access beyond end of device
[  437.704061][T10313] loop1: rw=8423425, sector=54224, nr_sectors = 8 limit=40427
[  437.713981][ T6048] syz-executor: attempt to access beyond end of device
[  437.713981][ T6048] loop1: rw=2049, sector=45096, nr_sectors = 8 limit=40427
[  437.722142][ T6048] CPU: 1 UID: 0 PID: 6048 Comm: syz-executor Not tainted syzkaller #0 PREEMPT(full) 
[  437.722157][ T6048] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
[  437.722163][ T6048] Call Trace:
[  437.722168][ T6048]  <TASK>
[  437.722172][ T6048]  dump_stack_lvl+0xe8/0x150
[  437.722191][ T6048]  f2fs_stop_checkpoint+0x3f6/0x5d0
[  437.722207][ T6048]  f2fs_write_end_io+0x124b/0x1710
[  437.722229][ T6048]  __submit_merged_bio+0x258/0x6a0
[  437.722239][ T6048]  ? rcu_is_watching+0x15/0xb0
[  437.722257][ T6048]  __submit_merged_write_cond+0x3c9/0x4e0
[  437.722271][ T6048]  ? __pfx___submit_merged_write_cond+0x10/0x10
[  437.722291][ T6048]  f2fs_write_data_pages+0x2a27/0x36f0
[  437.722317][ T6048]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  437.722347][ T6048]  ? __pfx_hlock_conflict+0x10/0x10
[  437.722355][ T6048]  ? __bfs+0x153/0x290
[  437.722366][ T6048]  ? __pfx_hlock_conflict+0x10/0x10
[  437.722381][ T6048]  ? lockdep_unlock+0x5d/0xd0
[  437.722390][ T6048]  ? __lock_acquire+0x13e8/0x2cf0
[  437.722412][ T6048]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  437.722424][ T6048]  do_writepages+0x338/0x560
[  437.722442][ T6048]  ? do_raw_spin_unlock+0x4d/0x210
[  437.722453][ T6048]  filemap_fdatawrite+0x1e9/0x2f0
[  437.722476][ T6048]  ? __pfx_filemap_fdatawrite+0x10/0x10
[  437.722506][ T6048]  ? do_raw_spin_unlock+0x4d/0x210
[  437.722516][ T6048]  f2fs_sync_dirty_inodes+0x30e/0x830
[  437.722572][ T6048]  f2fs_write_checkpoint+0xa3d/0x2710
[  437.722626][ T6048]  ? __pfx_f2fs_write_checkpoint+0x10/0x10
[  437.722663][ T6048]  kill_f2fs_super+0x2dd/0x700
[  437.722679][ T6048]  ? __pfx_kill_f2fs_super+0x10/0x10
[  437.722696][ T6048]  ? call_rcu+0x64b/0x8b0
[  437.722704][ T6048]  ? lockdep_hardirqs_on+0x7a/0x110
[  437.722721][ T6048]  deactivate_locked_super+0xbc/0x110
[  437.722736][ T6048]  cleanup_mnt+0x3d3/0x460
[  437.722748][ T6048]  task_work_run+0x1d9/0x270
[  437.722764][ T6048]  ? __pfx_task_work_run+0x10/0x10
[  437.722780][ T6048]  exit_to_user_mode_loop+0x1fa/0x730
[  437.722792][ T6048]  ? rcu_is_watching+0x15/0xb0
[  437.722805][ T6048]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  437.722814][ T6048]  do_syscall_64+0x353/0x580
[  437.722824][ T6048]  ? trace_irq_disable+0x3b/0x140
[  437.722839][ T6048]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  437.722847][ T6048] RIP: 0033:0x7f02fe39f257
[  437.722857][ T6048] Code: a2 c7 05 9c 44 25 00 00 00 00 00 eb 96 e8 e1 12 00 00 90 31 f6 e9 09 00 00 00 66 0f 1f 84 00 00 00 00 00 b8 a6 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 01 c3 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8
[  437.722865][ T6048] RSP: 002b:00007fff9b96aa28 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
[  437.722875][ T6048] RAX: 0000000000000000 RBX: 00007f02fe43445c RCX: 00007f02fe39f257
[  437.722881][ T6048] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007fff9b96aae0
[  437.722887][ T6048] RBP: 00007fff9b96aae0 R08: 00007fff9b96bae0 R09: 00000000ffffffff
[  437.722892][ T6048] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fff9b96bb70
[  437.722897][ T6048] R13: 00007f02fe43445c R14: 000000000006ad5e R15: 00007fff9b96bbb0
[  437.722911][ T6048]  </TASK>
[  437.723992][ T6048] F2FS-fs (loop1): Stopped filesystem due to reason: 3
[  437.740790][T10315] F2FS-fs (loop0): Small segment_count (9 < 1 * 24)
[  437.861518][T10315] F2FS-fs (loop0): Can't find valid F2FS filesystem in 1th superblock
[  437.966200][T10315] F2FS-fs (loop0): f2fs_recover_fsync_data: recovery fsync data, check_only: 0
[  437.981200][T10315] F2FS-fs (loop0): Try to recover 1th superblock, ret: 0
[  437.990115][T10315] F2FS-fs (loop0): Mounted with checkpoint version = 48b305e5
[  438.011490][T10315] syz.0.1037: attempt to access beyond end of device
[  438.011490][T10315] loop0: rw=2049, sector=53248, nr_sectors = 976 limit=40427
[  438.017354][T10315] syz.0.1037: attempt to access beyond end of device
[  438.017354][T10315] loop0: rw=8423425, sector=54224, nr_sectors = 8 limit=40427
[  438.032502][ T6042] syz-executor: attempt to access beyond end of device
[  438.032502][ T6042] loop0: rw=2049, sector=45096, nr_sectors = 8 limit=40427
[  438.039372][ T6042] CPU: 1 UID: 0 PID: 6042 Comm: syz-executor Not tainted syzkaller #0 PREEMPT(full) 
[  438.039388][ T6042] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
[  438.039395][ T6042] Call Trace:
[  438.039400][ T6042]  <TASK>
[  438.039406][ T6042]  dump_stack_lvl+0xe8/0x150
[  438.039426][ T6042]  f2fs_stop_checkpoint+0x3f6/0x5d0
[  438.039443][ T6042]  f2fs_write_end_io+0x124b/0x1710
[  438.039467][ T6042]  __submit_merged_bio+0x258/0x6a0
[  438.039477][ T6042]  ? rcu_is_watching+0x15/0xb0
[  438.039494][ T6042]  __submit_merged_write_cond+0x3c9/0x4e0
[  438.039510][ T6042]  ? __pfx___submit_merged_write_cond+0x10/0x10
[  438.039635][ T6042]  f2fs_write_data_pages+0x2a27/0x36f0
[  438.039655][ T6042]  ? __lock_acquire+0x683/0x2cf0
[  438.039688][ T6042]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  438.039728][ T6042]  ? raw_spin_rq_lock_nested+0x2d/0x160
[  438.039747][ T6042]  ? __pfx_hlock_conflict+0x10/0x10
[  438.039760][ T6042]  ? __bfs+0x153/0x290
[  438.039777][ T6042]  ? __pfx_hlock_conflict+0x10/0x10
[  438.039805][ T6042]  ? lockdep_unlock+0x5d/0xd0
[  438.039821][ T6042]  ? __lock_acquire+0x13e8/0x2cf0
[  438.039861][ T6042]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  438.039882][ T6042]  do_writepages+0x338/0x560
[  438.039910][ T6042]  ? do_raw_spin_unlock+0x4d/0x210
[  438.039931][ T6042]  filemap_fdatawrite+0x1e9/0x2f0
[  438.039977][ T6042]  ? __pfx_filemap_fdatawrite+0x10/0x10
[  438.040033][ T6042]  ? do_raw_spin_unlock+0x4d/0x210
[  438.040052][ T6042]  f2fs_sync_dirty_inodes+0x30e/0x830
[  438.040084][ T6042]  f2fs_write_checkpoint+0xa3d/0x2710
[  438.040130][ T6042]  ? __pfx_f2fs_write_checkpoint+0x10/0x10
[  438.040197][ T6042]  kill_f2fs_super+0x2dd/0x700
[  438.040227][ T6042]  ? __pfx_kill_f2fs_super+0x10/0x10
[  438.040253][ T6042]  ? call_rcu+0x64b/0x8b0
[  438.040267][ T6042]  ? lockdep_hardirqs_on+0x7a/0x110
[  438.040297][ T6042]  deactivate_locked_super+0xbc/0x110
[  438.040321][ T6042]  cleanup_mnt+0x3d3/0x460
[  438.040337][ T6042]  task_work_run+0x1d9/0x270
[  438.040357][ T6042]  ? __pfx_task_work_run+0x10/0x10
[  438.040386][ T6042]  exit_to_user_mode_loop+0x1fa/0x730
[  438.040404][ T6042]  ? rcu_is_watching+0x15/0xb0
[  438.040425][ T6042]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  438.040437][ T6042]  do_syscall_64+0x353/0x580
[  438.040447][ T6042]  ? trace_irq_disable+0x3b/0x140
[  438.040462][ T6042]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  438.040471][ T6042] RIP: 0033:0x7f472c39f257
[  438.040482][ T6042] 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
[  438.040493][ T6042] RSP: 002b:00007ffccbd49c88 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
[  438.040508][ T6042] RAX: 0000000000000000 RBX: 00007f472c43445c RCX: 00007f472c39f257
[  438.040549][ T6042] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffccbd49d40
[  438.040558][ T6042] RBP: 00007ffccbd49d40 R08: 00007ffccbd4ad40 R09: 00000000ffffffff
[  438.040566][ T6042] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffccbd4add0
[  438.040574][ T6042] R13: 00007f472c43445c R14: 000000000006ae98 R15: 00007ffccbd4ae10
[  438.040597][ T6042]  </TASK>
[  438.173712][ T6042] F2FS-fs (loop0): Stopped filesystem due to reason: 3
[  438.368807][T10325] F2FS-fs (loop1): Small segment_count (9 < 1 * 24)
[  438.410467][T10325] F2FS-fs (loop1): Can't find valid F2FS filesystem in 1th superblock
[  438.496804][T10325] F2FS-fs (loop1): f2fs_recover_fsync_data: recovery fsync data, check_only: 0
[  438.514533][T10325] F2FS-fs (loop1): Try to recover 1th superblock, ret: 0
[  438.520761][T10325] F2FS-fs (loop1): Mounted with checkpoint version = 48b305e5
[  438.540855][T10323] F2FS-fs (loop2): Small segment_count (9 < 1 * 24)
[  438.546756][T10323] F2FS-fs (loop2): Can't find valid F2FS filesystem in 1th superblock
[  438.577470][ T6048] CPU: 1 UID: 0 PID: 6048 Comm: syz-executor Not tainted syzkaller #0 PREEMPT(full) 
[  438.577554][ T6048] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
[  438.577565][ T6048] Call Trace:
[  438.577584][ T6048]  <TASK>
[  438.577592][ T6048]  dump_stack_lvl+0xe8/0x150
[  438.577622][ T6048]  f2fs_stop_checkpoint+0x3f6/0x5d0
[  438.577648][ T6048]  f2fs_write_end_io+0x124b/0x1710
[  438.577686][ T6048]  __submit_merged_bio+0x258/0x6a0
[  438.577702][ T6048]  ? rcu_is_watching+0x15/0xb0
[  438.577731][ T6048]  __submit_merged_write_cond+0x3c9/0x4e0
[  438.577754][ T6048]  ? __pfx___submit_merged_write_cond+0x10/0x10
[  438.577806][ T6048]  f2fs_write_data_pages+0x2a27/0x36f0
[  438.577823][ T6048]  ? __lock_acquire+0x683/0x2cf0
[  438.577865][ T6048]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  438.577920][ T6048]  ? __pfx_hlock_conflict+0x10/0x10
[  438.577933][ T6048]  ? __bfs+0x153/0x290
[  438.577949][ T6048]  ? __pfx_hlock_conflict+0x10/0x10
[  438.577978][ T6048]  ? lockdep_unlock+0x5d/0xd0
[  438.577992][ T6048]  ? __lock_acquire+0x13e8/0x2cf0
[  438.578033][ T6048]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  438.578054][ T6048]  do_writepages+0x338/0x560
[  438.578082][ T6048]  ? do_raw_spin_unlock+0x4d/0x210
[  438.578102][ T6048]  filemap_fdatawrite+0x1e9/0x2f0
[  438.578126][ T6048]  ? __pfx_filemap_fdatawrite+0x10/0x10
[  438.578182][ T6048]  ? do_raw_spin_unlock+0x4d/0x210
[  438.578202][ T6048]  f2fs_sync_dirty_inodes+0x30e/0x830
[  438.578236][ T6048]  f2fs_write_checkpoint+0xa3d/0x2710
[  438.578284][ T6048]  ? __pfx_f2fs_write_checkpoint+0x10/0x10
[  438.578349][ T6048]  kill_f2fs_super+0x2dd/0x700
[  438.578376][ T6048]  ? __pfx_kill_f2fs_super+0x10/0x10
[  438.578406][ T6048]  ? call_rcu+0x64b/0x8b0
[  438.578420][ T6048]  ? lockdep_hardirqs_on+0x7a/0x110
[  438.578446][ T6048]  deactivate_locked_super+0xbc/0x110
[  438.578468][ T6048]  cleanup_mnt+0x3d3/0x460
[  438.578518][ T6048]  task_work_run+0x1d9/0x270
[  438.578543][ T6048]  ? __pfx_task_work_run+0x10/0x10
[  438.578571][ T6048]  exit_to_user_mode_loop+0x1fa/0x730
[  438.578589][ T6048]  ? rcu_is_watching+0x15/0xb0
[  438.578610][ T6048]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  438.578627][ T6048]  do_syscall_64+0x353/0x580
[  438.578641][ T6048]  ? trace_irq_disable+0x3b/0x140
[  438.578665][ T6048]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  438.578680][ T6048] RIP: 0033:0x7f02fe39f257
[  438.578696][ T6048] Code: a2 c7 05 9c 44 25 00 00 00 00 00 eb 96 e8 e1 12 00 00 90 31 f6 e9 09 00 00 00 66 0f 1f 84 00 00 00 00 00 b8 a6 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 01 c3 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8
[  438.578709][ T6048] RSP: 002b:00007fff9b96aa28 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
[  438.578725][ T6048] RAX: 0000000000000000 RBX: 00007f02fe43445c RCX: 00007f02fe39f257
[  438.578735][ T6048] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007fff9b96aae0
[  438.578745][ T6048] RBP: 00007fff9b96aae0 R08: 00007fff9b96bae0 R09: 00000000ffffffff
[  438.578754][ T6048] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fff9b96bb70
[  438.578764][ T6048] R13: 00007f02fe43445c R14: 000000000006b09c R15: 00007fff9b96bbb0
[  438.578788][ T6048]  </TASK>
[  438.631103][ T6048] F2FS-fs (loop1): Stopped filesystem due to reason: 3
[  438.684506][T10323] F2FS-fs (loop2): f2fs_recover_fsync_data: recovery fsync data, check_only: 0
[  438.714371][T10323] F2FS-fs (loop2): Try to recover 1th superblock, ret: 0
[  438.717286][T10323] F2FS-fs (loop2): Mounted with checkpoint version = 48b305e5
[  438.733822][T10327] F2FS-fs (loop0): Small segment_count (9 < 1 * 24)
[  438.742210][ T6047] CPU: 0 UID: 0 PID: 6047 Comm: syz-executor Not tainted syzkaller #0 PREEMPT(full) 
[  438.742230][ T6047] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
[  438.742239][ T6047] Call Trace:
[  438.742247][ T6047]  <TASK>
[  438.742253][ T6047]  dump_stack_lvl+0xe8/0x150
[  438.742281][ T6047]  f2fs_stop_checkpoint+0x3f6/0x5d0
[  438.742305][ T6047]  f2fs_write_end_io+0x124b/0x1710
[  438.742340][ T6047]  __submit_merged_bio+0x258/0x6a0
[  438.742353][ T6047]  ? rcu_is_watching+0x15/0xb0
[  438.742372][ T6047]  __submit_merged_write_cond+0x3c9/0x4e0
[  438.742391][ T6047]  ? __pfx___submit_merged_write_cond+0x10/0x10
[  438.742421][ T6047]  f2fs_write_data_pages+0x2a27/0x36f0
[  438.742465][ T6047]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  438.742573][ T6047]  ? __pfx_hlock_conflict+0x10/0x10
[  438.742586][ T6047]  ? __bfs+0x153/0x290
[  438.742603][ T6047]  ? __pfx_hlock_conflict+0x10/0x10
[  438.742628][ T6047]  ? lockdep_unlock+0x5d/0xd0
[  438.742641][ T6047]  ? __lock_acquire+0x13e8/0x2cf0
[  438.742678][ T6047]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  438.742693][ T6047]  do_writepages+0x338/0x560
[  438.742715][ T6047]  ? do_raw_spin_unlock+0x4d/0x210
[  438.742733][ T6047]  filemap_fdatawrite+0x1e9/0x2f0
[  438.742755][ T6047]  ? __pfx_filemap_fdatawrite+0x10/0x10
[  438.742805][ T6047]  ? do_raw_spin_unlock+0x4d/0x210
[  438.742824][ T6047]  f2fs_sync_dirty_inodes+0x30e/0x830
[  438.742855][ T6047]  f2fs_write_checkpoint+0xa3d/0x2710
[  438.742896][ T6047]  ? __pfx_f2fs_write_checkpoint+0x10/0x10
[  438.742943][ T6047]  kill_f2fs_super+0x2dd/0x700
[  438.742965][ T6047]  ? __pfx_kill_f2fs_super+0x10/0x10
[  438.742987][ T6047]  ? call_rcu+0x64b/0x8b0
[  438.742998][ T6047]  ? lockdep_hardirqs_on+0x7a/0x110
[  438.743023][ T6047]  deactivate_locked_super+0xbc/0x110
[  438.743046][ T6047]  cleanup_mnt+0x3d3/0x460
[  438.743066][ T6047]  task_work_run+0x1d9/0x270
[  438.743088][ T6047]  ? __pfx_task_work_run+0x10/0x10
[  438.743111][ T6047]  exit_to_user_mode_loop+0x1fa/0x730
[  438.743129][ T6047]  ? rcu_is_watching+0x15/0xb0
[  438.743149][ T6047]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  438.743162][ T6047]  do_syscall_64+0x353/0x580
[  438.743176][ T6047]  ? trace_irq_disable+0x3b/0x140
[  438.743199][ T6047]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  438.743213][ T6047] RIP: 0033:0x7f5458f9f257
[  438.743228][ T6047] 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
[  438.743240][ T6047] RSP: 002b:00007ffc648103f8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
[  438.743255][ T6047] RAX: 0000000000000000 RBX: 00007f545903445c RCX: 00007f5458f9f257
[  438.743265][ T6047] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffc648104b0
[  438.743273][ T6047] RBP: 00007ffc648104b0 R08: 00007ffc648114b0 R09: 00000000ffffffff
[  438.743282][ T6047] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc64811540
[  438.743291][ T6047] R13: 00007f545903445c R14: 000000000006b15b R15: 00007ffc64811580
[  438.743314][ T6047]  </TASK>
[  438.743862][ T6047] F2FS-fs (loop2): Stopped filesystem due to reason: 3
[  438.867194][T10327] F2FS-fs (loop0): Can't find valid F2FS filesystem in 1th superblock
[  438.904673][T10327] F2FS-fs (loop0): f2fs_recover_fsync_data: recovery fsync data, check_only: 0
[  438.912300][T10327] F2FS-fs (loop0): Try to recover 1th superblock, ret: 0
[  438.915304][T10327] F2FS-fs (loop0): Mounted with checkpoint version = 48b305e5
[  438.945739][ T6042] CPU: 1 UID: 0 PID: 6042 Comm: syz-executor Not tainted syzkaller #0 PREEMPT(full) 
[  438.945768][ T6042] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
[  438.945778][ T6042] Call Trace:
[  438.945785][ T6042]  <TASK>
[  438.945792][ T6042]  dump_stack_lvl+0xe8/0x150
[  438.945818][ T6042]  f2fs_stop_checkpoint+0x3f6/0x5d0
[  438.945842][ T6042]  f2fs_write_end_io+0x124b/0x1710
[  438.945874][ T6042]  __submit_merged_bio+0x258/0x6a0
[  438.945889][ T6042]  ? rcu_is_watching+0x15/0xb0
[  438.945912][ T6042]  __submit_merged_write_cond+0x3c9/0x4e0
[  438.945957][ T6042]  ? __pfx___submit_merged_write_cond+0x10/0x10
[  438.945986][ T6042]  f2fs_write_data_pages+0x2a27/0x36f0
[  438.946028][ T6042]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  438.946080][ T6042]  ? __pfx_hlock_conflict+0x10/0x10
[  438.946094][ T6042]  ? __bfs+0x153/0x290
[  438.946110][ T6042]  ? __pfx_hlock_conflict+0x10/0x10
[  438.946137][ T6042]  ? lockdep_unlock+0x5d/0xd0
[  438.946152][ T6042]  ? __lock_acquire+0x13e8/0x2cf0
[  438.946190][ T6042]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  438.946210][ T6042]  do_writepages+0x338/0x560
[  438.946237][ T6042]  ? do_raw_spin_unlock+0x4d/0x210
[  438.946256][ T6042]  filemap_fdatawrite+0x1e9/0x2f0
[  438.946280][ T6042]  ? __pfx_filemap_fdatawrite+0x10/0x10
[  438.946329][ T6042]  ? do_raw_spin_unlock+0x4d/0x210
[  438.946348][ T6042]  f2fs_sync_dirty_inodes+0x30e/0x830
[  438.946379][ T6042]  f2fs_write_checkpoint+0xa3d/0x2710
[  438.946430][ T6042]  ? __pfx_f2fs_write_checkpoint+0x10/0x10
[  438.946513][ T6042]  kill_f2fs_super+0x2dd/0x700
[  438.946538][ T6042]  ? __pfx_kill_f2fs_super+0x10/0x10
[  438.946563][ T6042]  ? call_rcu+0x64b/0x8b0
[  438.946576][ T6042]  ? lockdep_hardirqs_on+0x7a/0x110
[  438.946602][ T6042]  deactivate_locked_super+0xbc/0x110
[  438.946625][ T6042]  cleanup_mnt+0x3d3/0x460
[  438.946644][ T6042]  task_work_run+0x1d9/0x270
[  438.946669][ T6042]  ? __pfx_task_work_run+0x10/0x10
[  438.946695][ T6042]  exit_to_user_mode_loop+0x1fa/0x730
[  438.946714][ T6042]  ? rcu_is_watching+0x15/0xb0
[  438.946735][ T6042]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  438.946750][ T6042]  do_syscall_64+0x353/0x580
[  438.946767][ T6042]  ? trace_irq_disable+0x3b/0x140
[  438.946789][ T6042]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  438.946803][ T6042] RIP: 0033:0x7f472c39f257
[  438.946818][ T6042] 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
[  438.946830][ T6042] RSP: 002b:00007ffccbd49c88 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
[  438.946846][ T6042] RAX: 0000000000000000 RBX: 00007f472c43445c RCX: 00007f472c39f257
[  438.946855][ T6042] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffccbd49d40
[  438.946863][ T6042] RBP: 00007ffccbd49d40 R08: 00007ffccbd4ad40 R09: 00000000ffffffff
[  438.946870][ T6042] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffccbd4add0
[  438.946878][ T6042] R13: 00007f472c43445c R14: 000000000006b21d R15: 00007ffccbd4ae10
[  438.946899][ T6042]  </TASK>
[  438.962937][ T6042] F2FS-fs (loop0): Stopped filesystem due to reason: 3
[  439.594139][T10337] set_capacity_and_notify: 5 callbacks suppressed
[  439.594156][T10337] loop2: detected capacity change from 0 to 40427
[  439.625997][T10337] F2FS-fs (loop2): Small segment_count (9 < 1 * 24)
[  439.632873][T10337] F2FS-fs (loop2): Can't find valid F2FS filesystem in 1th superblock
[  439.634909][T10335] loop1: detected capacity change from 0 to 40427
[  439.652609][T10335] F2FS-fs (loop1): Small segment_count (9 < 1 * 24)
[  439.670110][T10335] F2FS-fs (loop1): Can't find valid F2FS filesystem in 1th superblock
[  439.718838][T10339] loop0: detected capacity change from 0 to 40427
[  439.733858][T10339] F2FS-fs (loop0): Small segment_count (9 < 1 * 24)
[  439.740103][T10339] F2FS-fs (loop0): Can't find valid F2FS filesystem in 1th superblock
[  439.762867][T10337] F2FS-fs (loop2): f2fs_recover_fsync_data: recovery fsync data, check_only: 0
[  439.784235][T10337] F2FS-fs (loop2): Try to recover 1th superblock, ret: 0
[  439.792556][T10335] F2FS-fs (loop1): f2fs_recover_fsync_data: recovery fsync data, check_only: 0
[  439.793379][T10337] F2FS-fs (loop2): Mounted with checkpoint version = 48b305e5
[  439.804090][   T33] kauditd_printk_skb: 18 callbacks suppressed
[  439.804107][   T33] audit: type=1800 audit(1785658959.160:2049): pid=10337 uid=0 auid=4294967295 ses=4294967295 subj=unconfined op=collect_data cause=failed(directio) comm="syz.2.1042" name="file1" dev="loop2" ino=10 res=0 errno=0
[  439.825132][T10335] F2FS-fs (loop1): Try to recover 1th superblock, ret: 0
[  439.827301][ T6047] CPU: 0 UID: 0 PID: 6047 Comm: syz-executor Not tainted syzkaller #0 PREEMPT(full) 
[  439.827325][ T6047] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
[  439.827335][ T6047] Call Trace:
[  439.827343][ T6047]  <TASK>
[  439.827350][ T6047]  dump_stack_lvl+0xe8/0x150
[  439.827378][ T6047]  f2fs_stop_checkpoint+0x3f6/0x5d0
[  439.827430][ T6047]  f2fs_write_end_io+0x124b/0x1710
[  439.827466][ T6047]  __submit_merged_bio+0x258/0x6a0
[  439.827483][ T6047]  ? rcu_is_watching+0x15/0xb0
[  439.827507][ T6047]  __submit_merged_write_cond+0x3c9/0x4e0
[  439.827532][ T6047]  ? __pfx___submit_merged_write_cond+0x10/0x10
[  439.827562][ T6047]  f2fs_write_data_pages+0x2a27/0x36f0
[  439.827579][ T6047]  ? __lock_acquire+0x683/0x2cf0
[  439.827623][ T6047]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  439.827686][ T6047]  ? __pfx_hlock_conflict+0x10/0x10
[  439.827700][ T6047]  ? __bfs+0x153/0x290
[  439.827717][ T6047]  ? __pfx_hlock_conflict+0x10/0x10
[  439.827745][ T6047]  ? lockdep_unlock+0x5d/0xd0
[  439.827760][ T6047]  ? __lock_acquire+0x13e8/0x2cf0
[  439.827799][ T6047]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  439.827820][ T6047]  do_writepages+0x338/0x560
[  439.827849][ T6047]  ? do_raw_spin_unlock+0x4d/0x210
[  439.827869][ T6047]  filemap_fdatawrite+0x1e9/0x2f0
[  439.827891][ T6047]  ? __pfx_filemap_fdatawrite+0x10/0x10
[  439.827967][ T6047]  ? do_raw_spin_unlock+0x4d/0x210
[  439.827988][ T6047]  f2fs_sync_dirty_inodes+0x30e/0x830
[  439.828022][ T6047]  f2fs_write_checkpoint+0xa3d/0x2710
[  439.828069][ T6047]  ? __pfx_f2fs_write_checkpoint+0x10/0x10
[  439.828134][ T6047]  kill_f2fs_super+0x2dd/0x700
[  439.828162][ T6047]  ? __pfx_kill_f2fs_super+0x10/0x10
[  439.828192][ T6047]  ? call_rcu+0x64b/0x8b0
[  439.828206][ T6047]  ? lockdep_hardirqs_on+0x7a/0x110
[  439.828236][ T6047]  deactivate_locked_super+0xbc/0x110
[  439.828260][ T6047]  cleanup_mnt+0x3d3/0x460
[  439.828281][ T6047]  task_work_run+0x1d9/0x270
[  439.828305][ T6047]  ? __pfx_task_work_run+0x10/0x10
[  439.828334][ T6047]  exit_to_user_mode_loop+0x1fa/0x730
[  439.828354][ T6047]  ? rcu_is_watching+0x15/0xb0
[  439.828375][ T6047]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  439.828419][ T6047]  do_syscall_64+0x353/0x580
[  439.828439][ T6047]  ? trace_irq_disable+0x3b/0x140
[  439.828463][ T6047]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  439.828477][ T6047] RIP: 0033:0x7f5458f9f257
[  439.828491][ T6047] 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
[  439.828504][ T6047] RSP: 002b:00007ffc648103f8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6

[host] Command execution timed out after 6m0s