executor Not tainted syzkaller #0 PREEMPT(full) 
[  452.572903][ T6089] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
[  452.572913][ T6089] Call Trace:
[  452.572920][ T6089]  <TASK>
[  452.572927][ T6089]  dump_stack_lvl+0xe8/0x150
[  452.572956][ T6089]  f2fs_stop_checkpoint+0x3f6/0x5d0
[  452.572980][ T6089]  f2fs_write_end_io+0x124b/0x1710
[  452.573018][ T6089]  __submit_merged_bio+0x258/0x6a0
[  452.573036][ T6089]  ? rcu_is_watching+0x15/0xb0
[  452.573081][ T6089]  __submit_merged_write_cond+0x3c9/0x4e0
[  452.573107][ T6089]  ? __pfx___submit_merged_write_cond+0x10/0x10
[  452.573141][ T6089]  f2fs_write_data_pages+0x2a27/0x36f0
[  452.573186][ T6089]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  452.573237][ T6089]  ? __pfx_hlock_conflict+0x10/0x10
[  452.573251][ T6089]  ? __bfs+0x153/0x290
[  452.573268][ T6089]  ? __pfx_hlock_conflict+0x10/0x10
[  452.573293][ T6089]  ? lockdep_unlock+0x5d/0xd0
[  452.573309][ T6089]  ? __lock_acquire+0x13e8/0x2cf0
[  452.573346][ T6089]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  452.573367][ T6089]  do_writepages+0x338/0x560
[  452.573395][ T6089]  ? do_raw_spin_unlock+0x4d/0x210
[  452.573414][ T6089]  filemap_fdatawrite+0x1e9/0x2f0
[  452.573437][ T6089]  ? __pfx_filemap_fdatawrite+0x10/0x10
[  452.573488][ T6089]  ? do_raw_spin_unlock+0x4d/0x210
[  452.573507][ T6089]  f2fs_sync_dirty_inodes+0x30e/0x830
[  452.573539][ T6089]  f2fs_write_checkpoint+0xa3d/0x2710
[  452.573589][ T6089]  ? __pfx_f2fs_write_checkpoint+0x10/0x10
[  452.573647][ T6089]  kill_f2fs_super+0x2dd/0x700
[  452.573716][ T6089]  ? __pfx_kill_f2fs_super+0x10/0x10
[  452.573743][ T6089]  ? call_rcu+0x64b/0x8b0
[  452.573757][ T6089]  ? lockdep_hardirqs_on+0x7a/0x110
[  452.573781][ T6089]  deactivate_locked_super+0xbc/0x110
[  452.573805][ T6089]  cleanup_mnt+0x3d3/0x460
[  452.573825][ T6089]  task_work_run+0x1d9/0x270
[  452.573850][ T6089]  ? __pfx_task_work_run+0x10/0x10
[  452.573878][ T6089]  exit_to_user_mode_loop+0x1fa/0x730
[  452.573897][ T6089]  ? rcu_is_watching+0x15/0xb0
[  452.573919][ T6089]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  452.573935][ T6089]  do_syscall_64+0x353/0x580
[  452.573951][ T6089]  ? trace_irq_disable+0x3b/0x140
[  452.573975][ T6089]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  452.573989][ T6089] RIP: 0033:0x7f59c919f257
[  452.574014][ T6089] Code: a2 c7 05 9c 44 25 00 00 00 00 00 eb 96 e8 e1 12 00 00 90 31 f6 e9 09 00 00 00 66 0f 1f 84 00 00 00 00 00 b8 a6 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 01 c3 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8
[  452.574026][ T6089] RSP: 002b:00007ffd0e705d98 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
[  452.574043][ T6089] RAX: 0000000000000000 RBX: 00007f59c923445c RCX: 00007f59c919f257
[  452.574054][ T6089] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffd0e705e50
[  452.574062][ T6089] RBP: 00007ffd0e705e50 R08: 00007ffd0e706e50 R09: 00000000ffffffff
[  452.574070][ T6089] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffd0e706ee0
[  452.574080][ T6089] R13: 00007f59c923445c R14: 000000000006e720 R15: 00007ffd0e706f20
[  452.574109][ T6089]  </TASK>
[  452.579497][ T6089] F2FS-fs (loop2): Stopped filesystem due to reason: 3
[  452.929808][ T9616] F2FS-fs (loop1): Small segment_count (9 < 1 * 24)
[  452.937260][ T9616] F2FS-fs (loop1): Can't find valid F2FS filesystem in 1th superblock
[  453.016184][ T9616] F2FS-fs (loop1): f2fs_recover_fsync_data: recovery fsync data, check_only: 0
[  453.022512][ T9616] F2FS-fs (loop1): Try to recover 1th superblock, ret: 0
[  453.025031][ T9616] F2FS-fs (loop1): Mounted with checkpoint version = 48b305e5
[  453.034602][   T34] kauditd_printk_skb: 18 callbacks suppressed
[  453.034625][   T34] audit: type=1800 audit(1785657562.115:1642): pid=9616 uid=0 auid=4294967295 ses=4294967295 subj=unconfined op=collect_data cause=failed(directio) comm="syz.1.838" name="file1" dev="loop1" ino=10 res=0 errno=0
[  453.059555][   T34] audit: type=1800 audit(1785657562.115:1643): pid=9616 uid=0 auid=4294967295 ses=4294967295 subj=unconfined op=collect_data cause=failed(directio) comm="syz.1.838" name="file1" dev="loop1" ino=10 res=0 errno=0
[  453.089590][ T6083] CPU: 1 UID: 0 PID: 6083 Comm: syz-executor Not tainted syzkaller #0 PREEMPT(full) 
[  453.089618][ T6083] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
[  453.089628][ T6083] Call Trace:
[  453.089667][ T6083]  <TASK>
[  453.089674][ T6083]  dump_stack_lvl+0xe8/0x150
[  453.089702][ T6083]  f2fs_stop_checkpoint+0x3f6/0x5d0
[  453.089735][ T6083]  f2fs_write_end_io+0x124b/0x1710
[  453.089774][ T6083]  __submit_merged_bio+0x258/0x6a0
[  453.089792][ T6083]  ? rcu_is_watching+0x15/0xb0
[  453.089818][ T6083]  __submit_merged_write_cond+0x3c9/0x4e0
[  453.089843][ T6083]  ? __pfx___submit_merged_write_cond+0x10/0x10
[  453.089879][ T6083]  f2fs_write_data_pages+0x2a27/0x36f0
[  453.089899][ T6083]  ? __lock_acquire+0x683/0x2cf0
[  453.089941][ T6083]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  453.089991][ T6083]  ? __pfx_hlock_conflict+0x10/0x10
[  453.090004][ T6083]  ? __bfs+0x153/0x290
[  453.090022][ T6083]  ? __pfx_hlock_conflict+0x10/0x10
[  453.090046][ T6083]  ? lockdep_unlock+0x5d/0xd0
[  453.090062][ T6083]  ? __lock_acquire+0x13e8/0x2cf0
[  453.090098][ T6083]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  453.090119][ T6083]  do_writepages+0x338/0x560
[  453.090151][ T6083]  ? do_raw_spin_unlock+0x4d/0x210
[  453.090169][ T6083]  filemap_fdatawrite+0x1e9/0x2f0
[  453.090190][ T6083]  ? __pfx_filemap_fdatawrite+0x10/0x10
[  453.090247][ T6083]  ? do_raw_spin_unlock+0x4d/0x210
[  453.090267][ T6083]  f2fs_sync_dirty_inodes+0x30e/0x830
[  453.090298][ T6083]  f2fs_write_checkpoint+0xa3d/0x2710
[  453.090343][ T6083]  ? __pfx_f2fs_write_checkpoint+0x10/0x10
[  453.090402][ T6083]  kill_f2fs_super+0x2dd/0x700
[  453.090429][ T6083]  ? __pfx_kill_f2fs_super+0x10/0x10
[  453.090457][ T6083]  ? call_rcu+0x64b/0x8b0
[  453.090472][ T6083]  ? lockdep_hardirqs_on+0x7a/0x110
[  453.090498][ T6083]  deactivate_locked_super+0xbc/0x110
[  453.090523][ T6083]  cleanup_mnt+0x3d3/0x460
[  453.090543][ T6083]  task_work_run+0x1d9/0x270
[  453.090569][ T6083]  ? __pfx_task_work_run+0x10/0x10
[  453.090597][ T6083]  exit_to_user_mode_loop+0x1fa/0x730
[  453.090619][ T6083]  ? rcu_is_watching+0x15/0xb0
[  453.090674][ T6083]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  453.090691][ T6083]  do_syscall_64+0x353/0x580
[  453.090709][ T6083]  ? trace_irq_disable+0x3b/0x140
[  453.090739][ T6083]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  453.090754][ T6083] RIP: 0033:0x7fe575f9f257
[  453.090771][ T6083] 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
[  453.090784][ T6083] RSP: 002b:00007ffcf34b6a68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
[  453.090800][ T6083] RAX: 0000000000000000 RBX: 00007fe57603445c RCX: 00007fe575f9f257
[  453.090810][ T6083] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffcf34b6b20
[  453.090818][ T6083] RBP: 00007ffcf34b6b20 R08: 00007ffcf34b7b20 R09: 00000000ffffffff
[  453.090830][ T6083] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffcf34b7bb0
[  453.090839][ T6083] R13: 00007fe57603445c R14: 000000000006e92b R15: 00007ffcf34b7bf0
[  453.090862][ T6083]  </TASK>
[  453.090871][ T6083] F2FS-fs (loop1): Stopped filesystem due to reason: 3
[  453.336518][ T9618] F2FS-fs (loop0): Small segment_count (9 < 1 * 24)
[  453.339031][ T9618] F2FS-fs (loop0): Can't find valid F2FS filesystem in 1th superblock
[  453.397485][ T9618] F2FS-fs (loop0): f2fs_recover_fsync_data: recovery fsync data, check_only: 0
[  453.407841][ T9618] F2FS-fs (loop0): Try to recover 1th superblock, ret: 0
[  453.422098][ T9618] F2FS-fs (loop0): Mounted with checkpoint version = 48b305e5
[  453.428519][   T34] audit: type=1800 audit(1785657562.505:1644): pid=9618 uid=0 auid=4294967295 ses=4294967295 subj=unconfined op=collect_data cause=failed(directio) comm="syz.0.839" name="file1" dev="loop0" ino=10 res=0 errno=0
[  453.448086][   T34] audit: type=1800 audit(1785657562.525:1645): pid=9618 uid=0 auid=4294967295 ses=4294967295 subj=unconfined op=collect_data cause=failed(directio) comm="syz.0.839" name="file1" dev="loop0" ino=10 res=0 errno=0
[  453.477382][ T6081] CPU: 1 UID: 0 PID: 6081 Comm: syz-executor Not tainted syzkaller #0 PREEMPT(full) 
[  453.477410][ T6081] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
[  453.477420][ T6081] Call Trace:
[  453.477427][ T6081]  <TASK>
[  453.477435][ T6081]  dump_stack_lvl+0xe8/0x150
[  453.477462][ T6081]  f2fs_stop_checkpoint+0x3f6/0x5d0
[  453.477487][ T6081]  f2fs_write_end_io+0x124b/0x1710
[  453.477524][ T6081]  __submit_merged_bio+0x258/0x6a0
[  453.477542][ T6081]  ? rcu_is_watching+0x15/0xb0
[  453.477568][ T6081]  __submit_merged_write_cond+0x3c9/0x4e0
[  453.477592][ T6081]  ? __pfx___submit_merged_write_cond+0x10/0x10
[  453.477661][ T6081]  f2fs_write_data_pages+0x2a27/0x36f0
[  453.477681][ T6081]  ? __lock_acquire+0x683/0x2cf0
[  453.477732][ T6081]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  453.477782][ T6081]  ? __pfx_hlock_conflict+0x10/0x10
[  453.477795][ T6081]  ? __bfs+0x153/0x290
[  453.477812][ T6081]  ? __pfx_hlock_conflict+0x10/0x10
[  453.477837][ T6081]  ? lockdep_unlock+0x5d/0xd0
[  453.477853][ T6081]  ? __lock_acquire+0x13e8/0x2cf0
[  453.477889][ T6081]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  453.477909][ T6081]  do_writepages+0x338/0x560
[  453.477937][ T6081]  ? do_raw_spin_unlock+0x4d/0x210
[  453.477956][ T6081]  filemap_fdatawrite+0x1e9/0x2f0
[  453.477978][ T6081]  ? __pfx_filemap_fdatawrite+0x10/0x10
[  453.478030][ T6081]  ? do_raw_spin_unlock+0x4d/0x210
[  453.478047][ T6081]  f2fs_sync_dirty_inodes+0x30e/0x830
[  453.478076][ T6081]  f2fs_write_checkpoint+0xa3d/0x2710
[  453.478111][ T6081]  ? __pfx_f2fs_write_checkpoint+0x10/0x10
[  453.478182][ T6081]  kill_f2fs_super+0x2dd/0x700
[  453.478210][ T6081]  ? __pfx_kill_f2fs_super+0x10/0x10
[  453.478234][ T6081]  ? call_rcu+0x64b/0x8b0
[  453.478247][ T6081]  ? lockdep_hardirqs_on+0x7a/0x110
[  453.478271][ T6081]  deactivate_locked_super+0xbc/0x110
[  453.478291][ T6081]  cleanup_mnt+0x3d3/0x460
[  453.478308][ T6081]  task_work_run+0x1d9/0x270
[  453.478333][ T6081]  ? __pfx_task_work_run+0x10/0x10
[  453.478358][ T6081]  exit_to_user_mode_loop+0x1fa/0x730
[  453.478375][ T6081]  ? rcu_is_watching+0x15/0xb0
[  453.478397][ T6081]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  453.478411][ T6081]  do_syscall_64+0x353/0x580
[  453.478425][ T6081]  ? trace_irq_disable+0x3b/0x140
[  453.478449][ T6081]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  453.478462][ T6081] RIP: 0033:0x7f534ad9f257
[  453.478478][ T6081] 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
[  453.478489][ T6081] RSP: 002b:00007ffe1190c078 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
[  453.478507][ T6081] RAX: 0000000000000000 RBX: 00007f534ae3445c RCX: 00007f534ad9f257
[  453.478523][ T6081] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffe1190c130
[  453.478531][ T6081] RBP: 00007ffe1190c130 R08: 00007ffe1190d130 R09: 00000000ffffffff
[  453.478539][ T6081] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffe1190d1c0
[  453.478547][ T6081] R13: 00007f534ae3445c R14: 000000000006eabd R15: 00007ffe1190d200
[  453.478566][ T6081]  </TASK>
[  453.479008][ T6081] F2FS-fs (loop0): Stopped filesystem due to reason: 3
[  453.683411][ T9622] set_capacity_and_notify: 3 callbacks suppressed
[  453.683428][ T9622] loop2: detected capacity change from 0 to 40427
[  453.695814][ T9622] F2FS-fs (loop2): Small segment_count (9 < 1 * 24)
[  453.719375][ T9622] F2FS-fs (loop2): Can't find valid F2FS filesystem in 1th superblock
[  453.820198][ T9622] F2FS-fs (loop2): f2fs_recover_fsync_data: recovery fsync data, check_only: 0
[  453.829986][ T9622] F2FS-fs (loop2): Try to recover 1th superblock, ret: 0
[  453.834097][ T9622] F2FS-fs (loop2): Mounted with checkpoint version = 48b305e5
[  453.840870][   T34] audit: type=1800 audit(1785657562.925:1646): pid=9622 uid=0 auid=4294967295 ses=4294967295 subj=unconfined op=collect_data cause=failed(directio) comm="syz.2.840" name="file1" dev="loop2" ino=10 res=0 errno=0
[  453.866566][   T34] audit: type=1800 audit(1785657562.935:1647): pid=9622 uid=0 auid=4294967295 ses=4294967295 subj=unconfined op=collect_data cause=failed(directio) comm="syz.2.840" name="file1" dev="loop2" ino=10 res=0 errno=0
[  453.885002][ T6089] CPU: 1 UID: 0 PID: 6089 Comm: syz-executor Not tainted syzkaller #0 PREEMPT(full) 
[  453.885030][ T6089] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
[  453.885041][ T6089] Call Trace:
[  453.885049][ T6089]  <TASK>
[  453.885055][ T6089]  dump_stack_lvl+0xe8/0x150
[  453.885095][ T6089]  f2fs_stop_checkpoint+0x3f6/0x5d0
[  453.885143][ T6089]  f2fs_write_end_io+0x124b/0x1710
[  453.885180][ T6089]  __submit_merged_bio+0x258/0x6a0
[  453.885196][ T6089]  ? rcu_is_watching+0x15/0xb0
[  453.885222][ T6089]  __submit_merged_write_cond+0x3c9/0x4e0
[  453.885244][ T6089]  ? __pfx___submit_merged_write_cond+0x10/0x10
[  453.885276][ T6089]  f2fs_write_data_pages+0x2a27/0x36f0
[  453.885294][ T6089]  ? __lock_acquire+0x683/0x2cf0
[  453.885334][ T6089]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  453.885384][ T6089]  ? __pfx_hlock_conflict+0x10/0x10
[  453.885397][ T6089]  ? __bfs+0x153/0x290
[  453.885413][ T6089]  ? __pfx_hlock_conflict+0x10/0x10
[  453.885437][ T6089]  ? lockdep_unlock+0x5d/0xd0
[  453.885453][ T6089]  ? __lock_acquire+0x13e8/0x2cf0
[  453.885490][ T6089]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  453.885509][ T6089]  do_writepages+0x338/0x560
[  453.885535][ T6089]  ? do_raw_spin_unlock+0x4d/0x210
[  453.885552][ T6089]  filemap_fdatawrite+0x1e9/0x2f0
[  453.885577][ T6089]  ? __pfx_filemap_fdatawrite+0x10/0x10
[  453.885654][ T6089]  ? do_raw_spin_unlock+0x4d/0x210
[  453.885678][ T6089]  f2fs_sync_dirty_inodes+0x30e/0x830
[  453.885710][ T6089]  f2fs_write_checkpoint+0xa3d/0x2710
[  453.885751][ T6089]  ? __pfx_f2fs_write_checkpoint+0x10/0x10
[  453.885806][ T6089]  kill_f2fs_super+0x2dd/0x700
[  453.885831][ T6089]  ? __pfx_kill_f2fs_super+0x10/0x10
[  453.885857][ T6089]  ? call_rcu+0x64b/0x8b0
[  453.885870][ T6089]  ? lockdep_hardirqs_on+0x7a/0x110
[  453.885897][ T6089]  deactivate_locked_super+0xbc/0x110
[  453.885920][ T6089]  cleanup_mnt+0x3d3/0x460
[  453.885940][ T6089]  task_work_run+0x1d9/0x270
[  453.885964][ T6089]  ? __pfx_task_work_run+0x10/0x10
[  453.885993][ T6089]  exit_to_user_mode_loop+0x1fa/0x730
[  453.886012][ T6089]  ? rcu_is_watching+0x15/0xb0
[  453.886033][ T6089]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  453.886049][ T6089]  do_syscall_64+0x353/0x580
[  453.886072][ T6089]  ? trace_irq_disable+0x3b/0x140
[  453.886097][ T6089]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  453.886116][ T6089] RIP: 0033:0x7f59c919f257
[  453.886133][ T6089] 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
[  453.886149][ T6089] RSP: 002b:00007ffd0e705d98 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
[  453.886164][ T6089] RAX: 0000000000000000 RBX: 00007f59c923445c RCX: 00007f59c919f257
[  453.886174][ T6089] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffd0e705e50
[  453.886183][ T6089] RBP: 00007ffd0e705e50 R08: 00007ffd0e706e50 R09: 00000000ffffffff
[  453.886193][ T6089] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffd0e706ee0
[  453.886202][ T6089] R13: 00007f59c923445c R14: 000000000006ec54 R15: 00007ffd0e706f20
[  453.886223][ T6089]  </TASK>
[  453.886977][ T6089] F2FS-fs (loop2): Stopped filesystem due to reason: 3
[  454.123364][ T9626] loop1: detected capacity change from 0 to 40427
[  454.134640][ T9626] F2FS-fs (loop1): Small segment_count (9 < 1 * 24)
[  454.154138][ T9626] F2FS-fs (loop1): Can't find valid F2FS filesystem in 1th superblock
[  454.246380][ T9626] F2FS-fs (loop1): f2fs_recover_fsync_data: recovery fsync data, check_only: 0
[  454.255498][ T9626] F2FS-fs (loop1): Try to recover 1th superblock, ret: 0
[  454.258291][ T9626] F2FS-fs (loop1): Mounted with checkpoint version = 48b305e5
[  454.263397][   T34] audit: type=1800 audit(1785657563.345:1648): pid=9626 uid=0 auid=4294967295 ses=4294967295 subj=unconfined op=collect_data cause=failed(directio) comm="syz.1.841" name="file1" dev="loop1" ino=10 res=0 errno=0
[  454.279503][   T34] audit: type=1800 audit(1785657563.355:1649): pid=9626 uid=0 auid=4294967295 ses=4294967295 subj=unconfined op=collect_data cause=failed(directio) comm="syz.1.841" name="file1" dev="loop1" ino=10 res=0 errno=0
[  454.299791][ T6083] CPU: 0 UID: 0 PID: 6083 Comm: syz-executor Not tainted syzkaller #0 PREEMPT(full) 
[  454.299821][ T6083] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
[  454.299830][ T6083] Call Trace:
[  454.299836][ T6083]  <TASK>
[  454.299842][ T6083]  dump_stack_lvl+0xe8/0x150
[  454.299871][ T6083]  f2fs_stop_checkpoint+0x3f6/0x5d0
[  454.299894][ T6083]  f2fs_write_end_io+0x124b/0x1710
[  454.299930][ T6083]  __submit_merged_bio+0x258/0x6a0
[  454.299945][ T6083]  ? rcu_is_watching+0x15/0xb0
[  454.299972][ T6083]  __submit_merged_write_cond+0x3c9/0x4e0
[  454.299996][ T6083]  ? __pfx___submit_merged_write_cond+0x10/0x10
[  454.300030][ T6083]  f2fs_write_data_pages+0x2a27/0x36f0
[  454.300065][ T6083]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  454.300113][ T6083]  ? __pfx_hlock_conflict+0x10/0x10
[  454.300125][ T6083]  ? __bfs+0x153/0x290
[  454.300142][ T6083]  ? __pfx_hlock_conflict+0x10/0x10
[  454.300166][ T6083]  ? lockdep_unlock+0x5d/0xd0
[  454.300181][ T6083]  ? __lock_acquire+0x13e8/0x2cf0
[  454.300214][ T6083]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  454.300233][ T6083]  do_writepages+0x338/0x560
[  454.300259][ T6083]  ? do_raw_spin_unlock+0x4d/0x210
[  454.300278][ T6083]  filemap_fdatawrite+0x1e9/0x2f0
[  454.300300][ T6083]  ? __pfx_filemap_fdatawrite+0x10/0x10
[  454.300352][ T6083]  ? do_raw_spin_unlock+0x4d/0x210
[  454.300371][ T6083]  f2fs_sync_dirty_inodes+0x30e/0x830
[  454.300403][ T6083]  f2fs_write_checkpoint+0xa3d/0x2710
[  454.300448][ T6083]  ? __pfx_f2fs_write_checkpoint+0x10/0x10
[  454.300504][ T6083]  kill_f2fs_super+0x2dd/0x700
[  454.300581][ T6083]  ? __pfx_kill_f2fs_super+0x10/0x10
[  454.300613][ T6083]  ? call_rcu+0x64b/0x8b0
[  454.300626][ T6083]  ? lockdep_hardirqs_on+0x7a/0x110
[  454.300654][ T6083]  deactivate_locked_super+0xbc/0x110
[  454.300674][ T6083]  cleanup_mnt+0x3d3/0x460
[  454.300692][ T6083]  task_work_run+0x1d9/0x270
[  454.300718][ T6083]  ? __pfx_task_work_run+0x10/0x10
[  454.300742][ T6083]  exit_to_user_mode_loop+0x1fa/0x730
[  454.300761][ T6083]  ? rcu_is_watching+0x15/0xb0
[  454.300781][ T6083]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  454.300802][ T6083]  do_syscall_64+0x353/0x580
[  454.300818][ T6083]  ? trace_irq_disable+0x3b/0x140
[  454.300842][ T6083]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  454.300856][ T6083] RIP: 0033:0x7fe575f9f257
[  454.300869][ T6083] 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
[  454.300881][ T6083] RSP: 002b:00007ffcf34b6a68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
[  454.300898][ T6083] RAX: 0000000000000000 RBX: 00007fe57603445c RCX: 00007fe575f9f257
[  454.300906][ T6083] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffcf34b6b20
[  454.300912][ T6083] RBP: 00007ffcf34b6b20 R08: 00007ffcf34b7b20 R09: 00000000ffffffff
[  454.300920][ T6083] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffcf34b7bb0
[  454.300930][ T6083] R13: 00007fe57603445c R14: 000000000006edfa R15: 00007ffcf34b7bf0
[  454.300950][ T6083]  </TASK>
[  454.301514][ T6083] F2FS-fs (loop1): Stopped filesystem due to reason: 3
[  454.390193][ T9630] loop0: detected capacity change from 0 to 40427
[  454.460834][ T9630] F2FS-fs (loop0): Small segment_count (9 < 1 * 24)
[  454.471869][ T9630] F2FS-fs (loop0): Can't find valid F2FS filesystem in 1th superblock
[  454.595620][ T9630] F2FS-fs (loop0): f2fs_recover_fsync_data: recovery fsync data, check_only: 0
[  454.604733][ T9630] F2FS-fs (loop0): Try to recover 1th superblock, ret: 0
[  454.607744][ T9630] F2FS-fs (loop0): Mounted with checkpoint version = 48b305e5
[  454.613526][   T34] audit: type=1800 audit(1785657563.695:1650): pid=9630 uid=0 auid=4294967295 ses=4294967295 subj=unconfined op=collect_data cause=failed(directio) comm="syz.0.842" name="file1" dev="loop0" ino=10 res=0 errno=0
[  454.632738][   T34] audit: type=1800 audit(1785657563.705:1651): pid=9630 uid=0 auid=4294967295 ses=4294967295 subj=unconfined op=collect_data cause=failed(directio) comm="syz.0.842" name="file1" dev="loop0" ino=10 res=0 errno=0
[  454.654088][ T6081] CPU: 1 UID: 0 PID: 6081 Comm: syz-executor Not tainted syzkaller #0 PREEMPT(full) 
[  454.654112][ T6081] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
[  454.654122][ T6081] Call Trace:
[  454.654128][ T6081]  <TASK>
[  454.654134][ T6081]  dump_stack_lvl+0xe8/0x150
[  454.654160][ T6081]  f2fs_stop_checkpoint+0x3f6/0x5d0
[  454.654181][ T6081]  f2fs_write_end_io+0x124b/0x1710
[  454.654211][ T6081]  __submit_merged_bio+0x258/0x6a0
[  454.654223][ T6081]  ? rcu_is_watching+0x15/0xb0
[  454.654246][ T6081]  __submit_merged_write_cond+0x3c9/0x4e0
[  454.654266][ T6081]  ? __pfx___submit_merged_write_cond+0x10/0x10
[  454.654295][ T6081]  f2fs_write_data_pages+0x2a27/0x36f0
[  454.654339][ T6081]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  454.654390][ T6081]  ? __pfx_hlock_conflict+0x10/0x10
[  454.654403][ T6081]  ? __bfs+0x153/0x290
[  454.654418][ T6081]  ? __pfx_hlock_conflict+0x10/0x10
[  454.654444][ T6081]  ? lockdep_unlock+0x5d/0xd0
[  454.654460][ T6081]  ? __lock_acquire+0x13e8/0x2cf0
[  454.654493][ T6081]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  454.654512][ T6081]  do_writepages+0x338/0x560
[  454.654574][ T6081]  ? do_raw_spin_unlock+0x4d/0x210
[  454.654595][ T6081]  filemap_fdatawrite+0x1e9/0x2f0
[  454.654619][ T6081]  ? __pfx_filemap_fdatawrite+0x10/0x10
[  454.654689][ T6081]  ? do_raw_spin_unlock+0x4d/0x210
[  454.654709][ T6081]  f2fs_sync_dirty_inodes+0x30e/0x830
[  454.654742][ T6081]  f2fs_write_checkpoint+0xa3d/0x2710
[  454.654786][ T6081]  ? __pfx_f2fs_write_checkpoint+0x10/0x10
[  454.654839][ T6081]  kill_f2fs_super+0x2dd/0x700
[  454.654862][ T6081]  ? __pfx_kill_f2fs_super+0x10/0x10
[  454.654886][ T6081]  ? call_rcu+0x64b/0x8b0
[  454.654897][ T6081]  ? lockdep_hardirqs_on+0x7a/0x110
[  454.654922][ T6081]  deactivate_locked_super+0xbc/0x110
[  454.654941][ T6081]  cleanup_mnt+0x3d3/0x460
[  454.654960][ T6081]  task_work_run+0x1d9/0x270
[  454.654983][ T6081]  ? __pfx_task_work_run+0x10/0x10
[  454.655005][ T6081]  exit_to_user_mode_loop+0x1fa/0x730
[  454.655018][ T6081]  ? rcu_is_watching+0x15/0xb0
[  454.655038][ T6081]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  454.655057][ T6081]  do_syscall_64+0x353/0x580
[  454.655069][ T6081]  ? trace_irq_disable+0x3b/0x140
[  454.655088][ T6081]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  454.655100][ T6081] RIP: 0033:0x7f534ad9f257
[  454.655114][ T6081] 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
[  454.655125][ T6081] RSP: 002b:00007ffe1190c078 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
[  454.655140][ T6081] RAX: 0000000000000000 RBX: 00007f534ae3445c RCX: 00007f534ad9f257
[  454.655149][ T6081] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffe1190c130
[  454.655162][ T6081] RBP: 00007ffe1190c130 R08: 00007ffe1190d130 R09: 00000000ffffffff
[  454.655172][ T6081] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffe1190d1c0
[  454.655181][ T6081] R13: 00007f534ae3445c R14: 000000000006ef53 R15: 00007ffe1190d200
[  454.655205][ T6081]  </TASK>
[  454.774857][ T6081] F2FS-fs (loop0): Stopped filesystem due to reason: 3
[  454.812005][ T9634] loop2: detected capacity change from 0 to 40427
[  454.826611][ T9634] F2FS-fs (loop2): Small segment_count (9 < 1 * 24)
[  454.852067][ T9634] F2FS-fs (loop2): Can't find valid F2FS filesystem in 1th superblock
[  455.014657][ T9634] F2FS-fs (loop2): f2fs_recover_fsync_data: recovery fsync data, check_only: 0
[  455.023650][ T9634] F2FS-fs (loop2): Try to recover 1th superblock, ret: 0
[  455.029253][ T9634] F2FS-fs (loop2): Mounted with checkpoint version = 48b305e5
[  455.037969][ T9638] loop1: detected capacity change from 0 to 40427
[  455.051436][ T9638] F2FS-fs (loop1): Small segment_count (9 < 1 * 24)
[  455.061068][ T9638] F2FS-fs (loop1): Can't find valid F2FS filesystem in 1th superblock
[  455.114881][ T6089] CPU: 0 UID: 0 PID: 6089 Comm: syz-executor Not tainted syzkaller #0 PREEMPT(full) 
[  455.114911][ T6089] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
[  455.114921][ T6089] Call Trace:
[  455.114928][ T6089]  <TASK>
[  455.114934][ T6089]  dump_stack_lvl+0xe8/0x150
[  455.114963][ T6089]  f2fs_stop_checkpoint+0x3f6/0x5d0
[  455.114988][ T6089]  f2fs_write_end_io+0x124b/0x1710
[  455.115025][ T6089]  __submit_merged_bio+0x258/0x6a0
[  455.115043][ T6089]  ? rcu_is_watching+0x15/0xb0
[  455.115070][ T6089]  __submit_merged_write_cond+0x3c9/0x4e0
[  455.115095][ T6089]  ? __pfx___submit_merged_write_cond+0x10/0x10
[  455.115130][ T6089]  f2fs_write_data_pages+0x2a27/0x36f0
[  455.115148][ T6089]  ? __lock_acquire+0x683/0x2cf0
[  455.115192][ T6089]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  455.115245][ T6089]  ? __pfx_hlock_conflict+0x10/0x10
[  455.115258][ T6089]  ? __bfs+0x153/0x290
[  455.115275][ T6089]  ? __pfx_hlock_conflict+0x10/0x10
[  455.115299][ T6089]  ? lockdep_unlock+0x5d/0xd0
[  455.115314][ T6089]  ? __lock_acquire+0x13e8/0x2cf0
[  455.115350][ T6089]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  455.115368][ T6089]  do_writepages+0x338/0x560
[  455.115392][ T6089]  ? do_raw_spin_unlock+0x4d/0x210
[  455.115409][ T6089]  filemap_fdatawrite+0x1e9/0x2f0
[  455.115430][ T6089]  ? __pfx_filemap_fdatawrite+0x10/0x10
[  455.115480][ T6089]  ? do_raw_spin_unlock+0x4d/0x210
[  455.115535][ T6089]  f2fs_sync_dirty_inodes+0x30e/0x830
[  455.115569][ T6089]  f2fs_write_checkpoint+0xa3d/0x2710
[  455.115615][ T6089]  ? __pfx_f2fs_write_checkpoint+0x10/0x10
[  455.115668][ T6089]  kill_f2fs_super+0x2dd/0x700
[  455.115696][ T6089]  ? __pfx_kill_f2fs_super+0x10/0x10
[  455.115725][ T6089]  ? call_rcu+0x64b/0x8b0
[  455.115737][ T6089]  ? lockdep_hardirqs_on+0x7a/0x110
[  455.115761][ T6089]  deactivate_locked_super+0xbc/0x110
[  455.115784][ T6089]  cleanup_mnt+0x3d3/0x460
[  455.115801][ T6089]  task_work_run+0x1d9/0x270
[  455.115824][ T6089]  ? __pfx_task_work_run+0x10/0x10
[  455.115849][ T6089]  exit_to_user_mode_loop+0x1fa/0x730
[  455.115865][ T6089]  ? rcu_is_watching+0x15/0xb0
[  455.115882][ T6089]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  455.115904][ T6089]  do_syscall_64+0x353/0x580
[  455.115922][ T6089]  ? trace_irq_disable+0x3b/0x140
[  455.115942][ T6089]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  455.115956][ T6089] RIP: 0033:0x7f59c919f257
[  455.115971][ T6089] 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
[  455.115982][ T6089] RSP: 002b:00007ffd0e705d98 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
[  455.115998][ T6089] RAX: 0000000000000000 RBX: 00007f59c923445c RCX: 00007f59c919f257
[  455.116006][ T6089] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffd0e705e50
[  455.116014][ T6089] RBP: 00007ffd0e705e50 R08: 00007ffd0e706e50 R09: 00000000ffffffff
[  455.116024][ T6089] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffd0e706ee0
[  455.116031][ T6089] R13: 00007f59c923445c R14: 000000000006f10b R15: 00007ffd0e706f20
[  455.116072][ T6089]  </TASK>
[  455.116120][ T6089] F2FS-fs (loop2): Stopped filesystem due to reason: 3
[  455.157316][ T9638] F2FS-fs (loop1): f2fs_recover_fsync_data: recovery fsync data, check_only: 0
[  455.267964][ T9638] F2FS-fs (loop1): Try to recover 1th superblock, ret: 0
[  455.271042][ T9638] F2FS-fs (loop1): Mounted with checkpoint version = 48b305e5
[  455.306190][ T6083] CPU: 0 UID: 0 PID: 6083 Comm: syz-executor Not tainted syzkaller #0 PREEMPT(full) 
[  455.306209][ T6083] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
[  455.306218][ T6083] Call Trace:
[  455.306225][ T6083]  <TASK>
[  455.306231][ T6083]  dump_stack_lvl+0xe8/0x150
[  455.306255][ T6083]  f2fs_stop_checkpoint+0x3f6/0x5d0
[  455.306279][ T6083]  f2fs_write_end_io+0x124b/0x1710
[  455.306313][ T6083]  __submit_merged_bio+0x258/0x6a0
[  455.306328][ T6083]  ? rcu_is_watching+0x15/0xb0
[  455.306350][ T6083]  __submit_merged_write_cond+0x3c9/0x4e0
[  455.306371][ T6083]  ? __pfx___submit_merged_write_cond+0x10/0x10
[  455.306400][ T6083]  f2fs_write_data_pages+0x2a27/0x36f0
[  455.306442][ T6083]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  455.306533][ T6083]  ? __pfx_hlock_conflict+0x10/0x10
[  455.306547][ T6083]  ? __bfs+0x153/0x290
[  455.306564][ T6083]  ? __pfx_hlock_conflict+0x10/0x10
[  455.306589][ T6083]  ? lockdep_unlock+0x5d/0xd0
[  455.306604][ T6083]  ? __lock_acquire+0x13e8/0x2cf0
[  455.306640][ T6083]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  455.306660][ T6083]  do_writepages+0x338/0x560
[  455.306687][ T6083]  ? do_raw_spin_unlock+0x4d/0x210
[  455.306705][ T6083]  filemap_fdatawrite+0x1e9/0x2f0
[  455.306728][ T6083]  ? __pfx_filemap_fdatawrite+0x10/0x10
[  455.306776][ T6083]  ? do_raw_spin_unlock+0x4d/0x210
[  455.306795][ T6083]  f2fs_sync_dirty_inodes+0x30e/0x830
[  455.306825][ T6083]  f2fs_write_checkpoint+0xa3d/0x2710
[  455.306901][ T6083]  ? __pfx_f2fs_write_checkpoint+0x10/0x10
[  455.306953][ T6083]  kill_f2fs_super+0x2dd/0x700
[  455.306981][ T6083]  ? __pfx_kill_f2fs_super+0x10/0x10
[  455.307008][ T6083]  ? call_rcu+0x64b/0x8b0
[  455.307022][ T6083]  ? lockdep_hardirqs_on+0x7a/0x110
[  455.307053][ T6083]  deactivate_locked_super+0xbc/0x110
[  455.307074][ T6083]  cleanup_mnt+0x3d3/0x460
[  455.307093][ T6083]  task_work_run+0x1d9/0x270
[  455.307116][ T6083]  ? __pfx_task_work_run+0x10/0x10
[  455.307139][ T6083]  exit_to_user_mode_loop+0x1fa/0x730
[  455.307157][ T6083]  ? rcu_is_watching+0x15/0xb0
[  455.307177][ T6083]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  455.307192][ T6083]  do_syscall_64+0x353/0x580
[  455.307207][ T6083]  ? trace_irq_disable+0x3b/0x140
[  455.307229][ T6083]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  455.307243][ T6083] RIP: 0033:0x7fe575f9f257
[  455.307257][ T6083] 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
[  455.307269][ T6083] RSP: 002b:00007ffcf34b6a68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
[  455.307287][ T6083] RAX: 0000000000000000 RBX: 00007fe57603445c RCX: 00007fe575f9f257
[  455.307296][ T6083] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffcf34b6b20
[  455.307305][ T6083] RBP: 00007ffcf34b6b20 R08: 00007ffcf34b7b20 R09: 00000000ffffffff
[  455.307315][ T6083] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffcf34b7bb0
[  455.307323][ T6083] R13: 00007fe57603445c R14: 000000000006f1e0 R15: 00007ffcf34b7bf0
[  455.307347][ T6083]  </TASK>
[  455.308191][ T6083] F2FS-fs (loop1): Stopped filesystem due to reason: 3
[  455.675437][ T9644] loop0: detected capacity change from 0 to 40427
[  455.683572][ T9644] F2FS-fs (loop0): Small segment_count (9 < 1 * 24)
[  455.696989][ T9644] F2FS-fs (loop0): Can't find valid F2FS filesystem in 1th superblock
[  455.740070][ T9644] F2FS-fs (loop0): f2fs_recover_fsync_data: recovery fsync data, check_only: 0
[  455.747647][ T9644] F2FS-fs (loop0): Try to recover 1th superblock, ret: 0
[  455.751095][ T9644] F2FS-fs (loop0): Mounted with checkpoint version = 48b305e5
[  455.785837][ T6081] CPU: 0 UID: 0 PID: 6081 Comm: syz-executor Not tainted syzkaller #0 PREEMPT(full) 
[  455.785860][ T6081] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
[  455.785869][ T6081] Call Trace:
[  455.785876][ T6081]  <TASK>
[  455.785883][ T6081]  dump_stack_lvl+0xe8/0x150
[  455.785910][ T6081]  f2fs_stop_checkpoint+0x3f6/0x5d0
[  455.785933][ T6081]  f2fs_write_end_io+0x124b/0x1710
[  455.785967][ T6081]  __submit_merged_bio+0x258/0x6a0
[  455.785982][ T6081]  ? rcu_is_watching+0x15/0xb0
[  455.786008][ T6081]  __submit_merged_write_cond+0x3c9/0x4e0
[  455.786033][ T6081]  ? __pfx___submit_merged_write_cond+0x10/0x10
[  455.786072][ T6081]  f2fs_write_data_pages+0x2a27/0x36f0
[  455.786091][ T6081]  ? __lock_acquire+0x683/0x2cf0
[  455.786133][ T6081]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  455.786185][ T6081]  ? __pfx_hlock_conflict+0x10/0x10
[  455.786198][ T6081]  ? __bfs+0x153/0x290
[  455.786215][ T6081]  ? __pfx_hlock_conflict+0x10/0x10
[  455.786238][ T6081]  ? lockdep_unlock+0x5d/0xd0
[  455.786253][ T6081]  ? __lock_acquire+0x13e8/0x2cf0
[  455.786291][ T6081]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  455.786311][ T6081]  do_writepages+0x338/0x560
[  455.786339][ T6081]  ? do_raw_spin_unlock+0x4d/0x210
[  455.786358][ T6081]  filemap_fdatawrite+0x1e9/0x2f0
[  455.786379][ T6081]  ? __pfx_filemap_fdatawrite+0x10/0x10
[  455.786431][ T6081]  ? do_raw_spin_unlock+0x4d/0x210
[  455.786450][ T6081]  f2fs_sync_dirty_inodes+0x30e/0x830
[  455.786537][ T6081]  f2fs_write_checkpoint+0xa3d/0x2710
[  455.786585][ T6081]  ? __pfx_f2fs_write_checkpoint+0x10/0x10
[  455.786650][ T6081]  kill_f2fs_super+0x2dd/0x700
[  455.786680][ T6081]  ? __pfx_kill_f2fs_super+0x10/0x10
[  455.786707][ T6081]  ? call_rcu+0x64b/0x8b0
[  455.786721][ T6081]  ? lockdep_hardirqs_on+0x7a/0x110
[  455.786755][ T6081]  deactivate_locked_super+0xbc/0x110
[  455.786778][ T6081]  cleanup_mnt+0x3d3/0x460
[  455.786797][ T6081]  task_work_run+0x1d9/0x270
[  455.786820][ T6081]  ? __pfx_task_work_run+0x10/0x10
[  455.786850][ T6081]  exit_to_user_mode_loop+0x1fa/0x730
[  455.786867][ T6081]  ? rcu_is_watching+0x15/0xb0
[  455.786889][ T6081]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  455.786905][ T6081]  do_syscall_64+0x353/0x580
[  455.786920][ T6081]  ? trace_irq_disable+0x3b/0x140
[  455.786943][ T6081]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  455.786958][ T6081] RIP: 0033:0x7f534ad9f257
[  455.786975][ T6081] 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
[  455.786987][ T6081] RSP: 002b:00007ffe1190c078 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
[  455.787003][ T6081] RAX: 0000000000000000 RBX: 00007f534ae3445c RCX: 00007f534ad9f257
[  455.787013][ T6081] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffe1190c130
[  455.787022][ T6081] RBP: 00007ffe1190c130 R08: 00007ffe1190d130 R09: 00000000ffffffff
[  455.787031][ T6081] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffe1190d1c0
[  455.787041][ T6081] R13: 00007f534ae3445c R14: 000000000006f3c9 R15: 00007ffe1190d200
[  455.787066][ T6081]  </TASK>
[  455.788706][ T6081] F2FS-fs (loop0): Stopped filesystem due to reason: 3
[  455.894945][ T9646] loop2: detected capacity change from 0 to 40427
[  455.969646][ T9646] F2FS-fs (loop2): Small segment_count (9 < 1 * 24)
[  455.989541][ T9646] F2FS-fs (loop2): Can't find valid F2FS filesystem in 1th superblock
[  456.071123][ T9646] F2FS-fs (loop2): f2fs_recover_fsync_data: recovery fsync data, check_only: 0
[  456.078551][ T9646] F2FS-fs (loop2): Try to recover 1th superblock, ret: 0
[  456.082984][ T9646] F2FS-fs (loop2): Mounted with checkpoint version = 48b305e5
[  456.126611][ T6089] CPU: 0 UID: 0 PID: 6089 Comm: syz-executor Not tainted syzkaller #0 PREEMPT(full) 
[  456.126626][ T6089] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
[  456.126631][ T6089] Call Trace:
[  456.126636][ T6089]  <TASK>
[  456.126641][ T6089]  dump_stack_lvl+0xe8/0x150
[  456.126658][ T6089]  f2fs_stop_checkpoint+0x3f6/0x5d0
[  456.126672][ T6089]  f2fs_write_end_io+0x124b/0x1710
[  456.126695][ T6089]  __submit_merged_bio+0x258/0x6a0
[  456.126705][ T6089]  ? rcu_is_watching+0x15/0xb0
[  456.126721][ T6089]  __submit_merged_write_cond+0x3c9/0x4e0
[  456.126738][ T6089]  ? __pfx___submit_merged_write_cond+0x10/0x10
[  456.126759][ T6089]  f2fs_write_data_pages+0x2a27/0x36f0
[  456.126771][ T6089]  ? __lock_acquire+0x683/0x2cf0
[  456.126798][ T6089]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  456.126830][ T6089]  ? __pfx_hlock_conflict+0x10/0x10
[  456.126838][ T6089]  ? __bfs+0x153/0x290
[  456.126848][ T6089]  ? __pfx_hlock_conflict+0x10/0x10
[  456.126864][ T6089]  ? lockdep_unlock+0x5d/0xd0
[  456.126873][ T6089]  ? __lock_acquire+0x13e8/0x2cf0
[  456.126896][ T6089]  ? __pfx_f2fs_write_data_pages+0x10/0x10
2026/08/02 07:59:25 executed programs: 838
[  456.126908][ T6089]  do_writepages+0x338/0x560
[  456.126925][ T6089]  ? do_raw_spin_unlock+0x4d/0x210
[  456.126937][ T6089]  filemap_fdatawrite+0x1e9/0x2f0
[  456.126951][ T6089]  ? __pfx_filemap_fdatawrite+0x10/0x10
[  456.126983][ T6089]  ? do_raw_spin_unlock+0x4d/0x210
[  456.126994][ T6089]  f2fs_sync_dirty_inodes+0x30e/0x830
[  456.127014][ T6089]  f2fs_write_checkpoint+0xa3d/0x2710
[  456.127042][ T6089]  ? __pfx_f2fs_write_checkpoint+0x10/0x10
[  456.127079][ T6089]  kill_f2fs_super+0x2dd/0x700
[  456.127095][ T6089]  ? __pfx_kill_f2fs_super+0x10/0x10
[  456.127112][ T6089]  ? call_rcu+0x64b/0x8b0
[  456.127120][ T6089]  ? lockdep_hardirqs_on+0x7a/0x110
[  456.127136][ T6089]  deactivate_locked_super+0xbc/0x110
[  456.127150][ T6089]  cleanup_mnt+0x3d3/0x460
[  456.127161][ T6089]  task_work_run+0x1d9/0x270
[  456.127176][ T6089]  ? __pfx_task_work_run+0x10/0x10
[  456.127193][ T6089]  exit_to_user_mode_loop+0x1fa/0x730
[  456.127204][ T6089]  ? rcu_is_watching+0x15/0xb0
[  456.127217][ T6089]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  456.127233][ T6089]  do_syscall_64+0x353/0x580
[  456.127243][ T6089]  ? trace_irq_disable+0x3b/0x140
[  456.127256][ T6089]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  456.127264][ T6089] RIP: 0033:0x7f59c919f257
[  456.127274][ T6089] 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
[  456.127281][ T6089] RSP: 002b:00007ffd0e705d98 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
[  456.127314][ T6089] RAX: 0000000000000000 RBX: 00007f59c923445c RCX: 00007f59c919f257
[  456.127319][ T6089] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffd0e705e50
[  456.127324][ T6089] RBP: 00007ffd0e705e50 R08: 00007ffd0e706e50 R09: 00000000ffffffff
[  456.127330][ T6089] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffd0e706ee0
[  456.127336][ T6089] R13: 00007f59c923445c R14: 000000000006f51c R15: 00007ffd0e706f20
[  456.127350][ T6089]  </TASK>
[  456.128544][ T6089] F2FS-fs (loop2): Stopped filesystem due to reason: 3
[  456.209553][ T9648] loop1: detected capacity change from 0 to 40427
[  456.281169][ T9648] F2FS-fs (loop1): Small segment_count (9 < 1 * 24)
[  456.288124][ T9648] F2FS-fs (loop1): Can't find valid F2FS filesystem in 1th superblock
[  456.376125][ T9648] F2FS-fs (loop1): f2fs_recover_fsync_data: recovery fsync data, check_only: 0
[  456.394227][ T9648] F2FS-fs (loop1): Try to recover 1th superblock, ret: 0
[  456.398716][ T9648] F2FS-fs (loop1): Mounted with checkpoint version = 48b305e5
[  456.447959][ T6083] CPU: 1 UID: 0 PID: 6083 Comm: syz-executor Not tainted syzkaller #0 PREEMPT(full) 
[  456.447994][ T6083] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
[  456.448003][ T6083] Call Trace:
[  456.448011][ T6083]  <TASK>
[  456.448019][ T6083]  dump_stack_lvl+0xe8/0x150
[  456.448051][ T6083]  f2fs_stop_checkpoint+0x3f6/0x5d0
[  456.448081][ T6083]  f2fs_write_end_io+0x124b/0x1710
[  456.448128][ T6083]  __submit_merged_bio+0x258/0x6a0
[  456.448148][ T6083]  ? rcu_is_watching+0x15/0xb0
[  456.448177][ T6083]  __submit_merged_write_cond+0x3c9/0x4e0
[  456.448203][ T6083]  ? __pfx___submit_merged_write_cond+0x10/0x10
[  456.448243][ T6083]  f2fs_write_data_pages+0x2a27/0x36f0
[  456.448265][ T6083]  ? __lock_acquire+0x683/0x2cf0
[  456.448309][ T6083]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  456.448360][ T6083]  ? __pfx_hlock_conflict+0x10/0x10
[  456.448375][ T6083]  ? __bfs+0x153/0x290
[  456.448392][ T6083]  ? __pfx_hlock_conflict+0x10/0x10
[  456.448453][ T6083]  ? lockdep_unlock+0x5d/0xd0
[  456.448469][ T6083]  ? __lock_acquire+0x13e8/0x2cf0
[  456.448508][ T6083]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  456.448530][ T6083]  do_writepages+0x338/0x560
[  456.448563][ T6083]  ? do_raw_spin_unlock+0x4d/0x210
[  456.448603][ T6083]  filemap_fdatawrite+0x1e9/0x2f0
[  456.448627][ T6083]  ? __pfx_filemap_fdatawrite+0x10/0x10
[  456.448678][ T6083]  ? do_raw_spin_unlock+0x4d/0x210
[  456.448698][ T6083]  f2fs_sync_dirty_inodes+0x30e/0x830
[  456.448729][ T6083]  f2fs_write_checkpoint+0xa3d/0x2710
[  456.448773][ T6083]  ? __pfx_f2fs_write_checkpoint+0x10/0x10
[  456.448830][ T6083]  kill_f2fs_super+0x2dd/0x700
[  456.448858][ T6083]  ? __pfx_kill_f2fs_super+0x10/0x10
[  456.448887][ T6083]  ? call_rcu+0x64b/0x8b0
[  456.448906][ T6083]  ? lockdep_hardirqs_on+0x7a/0x110
[  456.448937][ T6083]  deactivate_locked_super+0xbc/0x110
[  456.448962][ T6083]  cleanup_mnt+0x3d3/0x460
[  456.448987][ T6083]  task_work_run+0x1d9/0x270
[  456.449012][ T6083]  ? __pfx_task_work_run+0x10/0x10
[  456.449040][ T6083]  exit_to_user_mode_loop+0x1fa/0x730
[  456.449056][ T6083]  ? rcu_is_watching+0x15/0xb0
[  456.449077][ T6083]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  456.449102][ T6083]  do_syscall_64+0x353/0x580
[  456.449119][ T6083]  ? trace_irq_disable+0x3b/0x140
[  456.449147][ T6083]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  456.449162][ T6083] RIP: 0033:0x7fe575f9f257
[  456.449181][ T6083] 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
[  456.449195][ T6083] RSP: 002b:00007ffcf34b6a68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
[  456.449213][ T6083] RAX: 0000000000000000 RBX: 00007fe57603445c RCX: 00007fe575f9f257
[  456.449223][ T6083] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffcf34b6b20
[  456.449233][ T6083] RBP: 00007ffcf34b6b20 R08: 00007ffcf34b7b20 R09: 00000000ffffffff
[  456.449243][ T6083] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffcf34b7bb0
[  456.449252][ T6083] R13: 00007fe57603445c R14: 000000000006f648 R15: 00007ffcf34b7bf0
[  456.449275][ T6083]  </TASK>
[  456.588735][ T6083] F2FS-fs (loop1): Stopped filesystem due to reason: 3
[  456.808557][ T9656] loop0: detected capacity change from 0 to 40427
[  456.822969][ T9656] F2FS-fs (loop0): Small segment_count (9 < 1 * 24)
[  456.839560][ T9656] F2FS-fs (loop0): Can't find valid F2FS filesystem in 1th superblock
[  456.916568][ T9658] loop2: detected capacity change from 0 to 40427
[  456.931636][ T9658] F2FS-fs (loop2): Small segment_count (9 < 1 * 24)
[  456.935270][ T9658] F2FS-fs (loop2): Can't find valid F2FS filesystem in 1th superblock
[  456.960219][ T9656] F2FS-fs (loop0): f2fs_recover_fsync_data: recovery fsync data, check_only: 0
[  456.985896][ T9656] F2FS-fs (loop0): Try to recover 1th superblock, ret: 0
[  456.992227][ T9656] F2FS-fs (loop0): Mounted with checkpoint version = 48b305e5
[  457.001262][ T9658] F2FS-fs (loop2): f2fs_recover_fsync_data: recovery fsync data, check_only: 0
[  457.009927][ T9658] F2FS-fs (loop2): Try to recover 1th superblock, ret: 0
[  457.013065][ T9658] F2FS-fs (loop2): Mounted with checkpoint version = 48b305e5
[  457.020273][ T9656] bio_check_eod: 30 callbacks suppressed
[  457.020285][ T9656] syz.0.848: attempt to access beyond end of device
[  457.020285][ T9656] loop0: rw=2049, sector=53248, nr_sectors = 976 limit=40427
[  457.038359][ T9658] syz.2.849: attempt to access beyond end of device
[  457.038359][ T9658] loop2: rw=2049, sector=53248, nr_sectors = 976 limit=40427
[  457.038594][ T9656] syz.0.848: attempt to access beyond end of device
[  457.038594][ T9656] loop0: rw=8423425, sector=54224, nr_sectors = 8 limit=40427
[  457.061143][ T9658] syz.2.849: attempt to access beyond end of device
[  457.061143][ T9658] loop2: rw=8423425, sector=54224, nr_sectors = 8 limit=40427
[  457.075291][ T6089] syz-executor: attempt to access beyond end of device
[  457.075291][ T6089] loop2: rw=2049, sector=45096, nr_sectors = 8 limit=40427
[  457.087629][ T6081] syz-executor: attempt to access beyond end of device
[  457.087629][ T6081] loop0: rw=2049, sector=45096, nr_sectors = 8 limit=40427
[  457.097716][ T6089] CPU: 1 UID: 0 PID: 6089 Comm: syz-executor Not tainted syzkaller #0 PREEMPT(full) 
[  457.097733][ T6089] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
[  457.097739][ T6089] Call Trace:
[  457.097744][ T6089]  <TASK>
[  457.097749][ T6089]  dump_stack_lvl+0xe8/0x150
[  457.097769][ T6089]  f2fs_stop_checkpoint+0x3f6/0x5d0
[  457.097786][ T6089]  f2fs_write_end_io+0x124b/0x1710
[  457.097808][ T6089]  __submit_merged_bio+0x258/0x6a0
[  457.097818][ T6089]  ? rcu_is_watching+0x15/0xb0
[  457.097836][ T6089]  __submit_merged_write_cond+0x3c9/0x4e0
[  457.097850][ T6089]  ? __pfx___submit_merged_write_cond+0x10/0x10
[  457.097870][ T6089]  f2fs_write_data_pages+0x2a27/0x36f0
[  457.097897][ T6089]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  457.097932][ T6089]  ? __pfx_hlock_conflict+0x10/0x10
[  457.097944][ T6089]  ? __bfs+0x153/0x290
[  457.097958][ T6089]  ? __pfx_hlock_conflict+0x10/0x10
[  457.098004][ T6089]  ? lockdep_unlock+0x5d/0xd0
[  457.098019][ T6089]  ? __lock_acquire+0x13e8/0x2cf0
[  457.098053][ T6089]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  457.098072][ T6089]  do_writepages+0x338/0x560
[  457.098098][ T6089]  ? do_raw_spin_unlock+0x4d/0x210
[  457.098117][ T6089]  filemap_fdatawrite+0x1e9/0x2f0
[  457.098139][ T6089]  ? __pfx_filemap_fdatawrite+0x10/0x10
[  457.098189][ T6089]  ? do_raw_spin_unlock+0x4d/0x210
[  457.098208][ T6089]  f2fs_sync_dirty_inodes+0x30e/0x830
[  457.098240][ T6089]  f2fs_write_checkpoint+0xa3d/0x2710
[  457.098276][ T6089]  ? __pfx_f2fs_write_checkpoint+0x10/0x10
[  457.098332][ T6089]  kill_f2fs_super+0x2dd/0x700
[  457.098360][ T6089]  ? __pfx_kill_f2fs_super+0x10/0x10
[  457.098419][ T6089]  ? call_rcu+0x64b/0x8b0
[  457.098433][ T6089]  ? lockdep_hardirqs_on+0x7a/0x110
[  457.098481][ T6089]  deactivate_locked_super+0xbc/0x110
[  457.098505][ T6089]  cleanup_mnt+0x3d3/0x460
[  457.098522][ T6089]  task_work_run+0x1d9/0x270
[  457.098545][ T6089]  ? __pfx_task_work_run+0x10/0x10
[  457.098573][ T6089]  exit_to_user_mode_loop+0x1fa/0x730
[  457.098597][ T6089]  ? rcu_is_watching+0x15/0xb0
[  457.098619][ T6089]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  457.098633][ T6089]  do_syscall_64+0x353/0x580
[  457.098654][ T6089]  ? trace_irq_disable+0x3b/0x140
[  457.098680][ T6089]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  457.098694][ T6089] RIP: 0033:0x7f59c919f257
[  457.098710][ T6089] 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
[  457.098721][ T6089] RSP: 002b:00007ffd0e705d98 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
[  457.098737][ T6089] RAX: 0000000000000000 RBX: 00007f59c923445c RCX: 00007f59c919f257
[  457.098750][ T6089] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffd0e705e50
[  457.098759][ T6089] RBP: 00007ffd0e705e50 R08: 00007ffd0e706e50 R09: 00000000ffffffff
[  457.098768][ T6089] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffd0e706ee0
[  457.098778][ T6089] R13: 00007f59c923445c R14: 000000000006f8d5 R15: 00007ffd0e706f20
[  457.098800][ T6089]  </TASK>
[  457.099567][ T6081] CPU: 0 UID: 0 PID: 6081 Comm: syz-executor Not tainted syzkaller #0 PREEMPT(full) 
[  457.099589][ T6081] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
[  457.099598][ T6081] Call Trace:
[  457.099615][ T6081]  <TASK>
[  457.099623][ T6081]  dump_stack_lvl+0xe8/0x150
[  457.099653][ T6081]  f2fs_stop_checkpoint+0x3f6/0x5d0
[  457.099678][ T6081]  f2fs_write_end_io+0x124b/0x1710
[  457.099715][ T6081]  __submit_merged_bio+0x258/0x6a0
[  457.099733][ T6081]  ? rcu_is_watching+0x15/0xb0
[  457.099759][ T6081]  __submit_merged_write_cond+0x3c9/0x4e0
[  457.099788][ T6081]  ? __pfx___submit_merged_write_cond+0x10/0x10
[  457.099827][ T6081]  f2fs_write_data_pages+0x2a27/0x36f0
[  457.099874][ T6081]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  457.099929][ T6081]  ? __pfx_hlock_conflict+0x10/0x10
[  457.099947][ T6081]  ? __bfs+0x153/0x290
[  457.099965][ T6081]  ? __pfx_hlock_conflict+0x10/0x10
[  457.099995][ T6081]  ? lockdep_unlock+0x5d/0xd0
[  457.100010][ T6081]  ? __lock_acquire+0x13e8/0x2cf0
[  457.100049][ T6081]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  457.100069][ T6081]  do_writepages+0x338/0x560
[  457.100097][ T6081]  ? do_raw_spin_unlock+0x4d/0x210
[  457.100115][ T6081]  filemap_fdatawrite+0x1e9/0x2f0
[  457.100139][ T6081]  ? __pfx_filemap_fdatawrite+0x10/0x10
[  457.100191][ T6081]  ? do_raw_spin_unlock+0x4d/0x210
[  457.100210][ T6081]  f2fs_sync_dirty_inodes+0x30e/0x830
[  457.100243][ T6081]  f2fs_write_checkpoint+0xa3d/0x2710
[  457.100289][ T6081]  ? __pfx_f2fs_write_checkpoint+0x10/0x10
[  457.100349][ T6081]  kill_f2fs_super+0x2dd/0x700
[  457.100413][ T6081]  ? __pfx_kill_f2fs_super+0x10/0x10
[  457.100446][ T6081]  ? call_rcu+0x64b/0x8b0
[  457.100460][ T6081]  ? lockdep_hardirqs_on+0x7a/0x110
[  457.100489][ T6081]  deactivate_locked_super+0xbc/0x110
[  457.100512][ T6081]  cleanup_mnt+0x3d3/0x460
[  457.100532][ T6081]  task_work_run+0x1d9/0x270
[  457.100557][ T6081]  ? __pfx_task_work_run+0x10/0x10
[  457.100585][ T6081]  exit_to_user_mode_loop+0x1fa/0x730
[  457.100603][ T6081]  ? rcu_is_watching+0x15/0xb0
[  457.100633][ T6081]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  457.100654][ T6081]  do_syscall_64+0x353/0x580
[  457.100676][ T6081]  ? trace_irq_disable+0x3b/0x140
[  457.100704][ T6081]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  457.100718][ T6081] RIP: 0033:0x7f534ad9f257
[  457.100734][ T6081] 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
[  457.100746][ T6081] RSP: 002b:00007ffe1190c078 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
[  457.100762][ T6081] RAX: 0000000000000000 RBX: 00007f534ae3445c RCX: 00007f534ad9f257
[  457.100772][ T6081] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffe1190c130
[  457.100781][ T6081] RBP: 00007ffe1190c130 R08: 00007ffe1190d130 R09: 00000000ffffffff
[  457.100791][ T6081] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffe1190d1c0
[  457.100801][ T6081] R13: 00007f534ae3445c R14: 000000000006f8c7 R15: 00007ffe1190d200
[  457.100824][ T6081]  </TASK>
[  457.100831][ T6081] F2FS-fs (loop0): Stopped filesystem due to reason: 3
[  457.108676][ T6089] F2FS-fs (loop2): Stopped filesystem due to reason: 3
[  457.336433][ T9664] F2FS-fs (loop1): Small segment_count (9 < 1 * 24)
[  457.408782][ T9664] F2FS-fs (loop1): Can't find valid F2FS filesystem in 1th superblock
[  457.543042][ T9664] F2FS-fs (loop1): f2fs_recover_fsync_data: recovery fsync data, check_only: 0
[  457.559895][ T9664] F2FS-fs (loop1): Try to recover 1th superblock, ret: 0
[  457.567674][ T9664] F2FS-fs (loop1): Mounted with checkpoint version = 48b305e5
[  457.601580][ T9664] syz.1.850: attempt to access beyond end of device
[  457.601580][ T9664] loop1: rw=2049, sector=53248, nr_sectors = 976 limit=40427
[  457.618205][ T9664] syz.1.850: attempt to access beyond end of device
[  457.618205][ T9664] loop1: rw=8423425, sector=54224, nr_sectors = 8 limit=40427
[  457.641526][ T6083] syz-executor: attempt to access beyond end of device
[  457.641526][ T6083] loop1: rw=2049, sector=45096, nr_sectors = 8 limit=40427
[  457.662095][ T6083] CPU: 0 UID: 0 PID: 6083 Comm: syz-executor Not tainted syzkaller #0 PREEMPT(full) 
[  457.662123][ T6083] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
[  457.662134][ T6083] Call Trace:
[  457.662146][ T6083]  <TASK>
[  457.662153][ T6083]  dump_stack_lvl+0xe8/0x150
[  457.662184][ T6083]  f2fs_stop_checkpoint+0x3f6/0x5d0
[  457.662210][ T6083]  f2fs_write_end_io+0x124b/0x1710
[  457.662249][ T6083]  __submit_merged_bio+0x258/0x6a0
[  457.662266][ T6083]  ? rcu_is_watching+0x15/0xb0
[  457.662293][ T6083]  __submit_merged_write_cond+0x3c9/0x4e0
[  457.662320][ T6083]  ? __pfx___submit_merged_write_cond+0x10/0x10
[  457.662397][ T6083]  f2fs_write_data_pages+0x2a27/0x36f0
[  457.662417][ T6083]  ? __lock_acquire+0x683/0x2cf0
[  457.662469][ T6083]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  457.662524][ T6083]  ? ktime_get+0x45/0x220
[  457.662541][ T6083]  ? lock_acquire+0x106/0x350
[  457.662587][ T6083]  ? lapic_next_event+0x11/0x20
[  457.662600][ T6083]  ? clockevents_program_event+0x491/0x630
[  457.662615][ T6083]  ? __hrtimer_rearm_deferred+0x99/0x420
[  457.662633][ T6083]  ? __pfx_clockevents_program_event+0x10/0x10
[  457.662665][ T6083]  ? lockdep_hardirqs_on+0x7a/0x110
[  457.662687][ T6083]  ? irqentry_exit+0x218/0x8f0
[  457.662702][ T6083]  ? trace_irq_disable+0x3b/0x140
[  457.662737][ T6083]  ? inode_to_bdi+0x69/0xf0
[  457.662760][ T6083]  ? __sanitizer_cov_trace_pc+0x17/0x70
[  457.662777][ T6083]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  457.662801][ T6083]  do_writepages+0x338/0x560
[  457.662828][ T6083]  ? do_raw_spin_unlock+0x4d/0x210
[  457.662844][ T6083]  filemap_fdatawrite+0x1e9/0x2f0
[  457.662863][ T6083]  ? __pfx_filemap_fdatawrite+0x10/0x10
[  457.662909][ T6083]  ? do_raw_spin_unlock+0x4d/0x210
[  457.662926][ T6083]  f2fs_sync_dirty_inodes+0x30e/0x830
[  457.662955][ T6083]  f2fs_write_checkpoint+0xa3d/0x2710
[  457.662995][ T6083]  ? __pfx_f2fs_write_checkpoint+0x10/0x10
[  457.663045][ T6083]  kill_f2fs_super+0x2dd/0x700
[  457.663070][ T6083]  ? __pfx_kill_f2fs_super+0x10/0x10
[  457.663094][ T6083]  ? call_rcu+0x64b/0x8b0
[  457.663104][ T6083]  ? lockdep_hardirqs_on+0x7a/0x110
[  457.663128][ T6083]  deactivate_locked_super+0xbc/0x110
[  457.663151][ T6083]  cleanup_mnt+0x3d3/0x460
[  457.663170][ T6083]  task_work_run+0x1d9/0x270
[  457.663193][ T6083]  ? __pfx_task_work_run+0x10/0x10
[  457.663221][ T6083]  exit_to_user_mode_loop+0x1fa/0x730
[  457.663238][ T6083]  ? rcu_is_watching+0x15/0xb0
[  457.663260][ T6083]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  457.663277][ T6083]  do_syscall_64+0x353/0x580
[  457.663291][ T6083]  ? trace_irq_disable+0x3b/0x140
[  457.663314][ T6083]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  457.663362][ T6083] RIP: 0033:0x7fe575f9f257
[  457.663378][ T6083] 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
[  457.663391][ T6083] RSP: 002b:00007ffcf34b6a68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
[  457.663407][ T6083] RAX: 0000000000000000 RBX: 00007fe57603445c RCX: 00007fe575f9f257
[  457.663415][ T6083] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffcf34b6b20
[  457.663424][ T6083] RBP: 00007ffcf34b6b20 R08: 00007ffcf34b7b20 R09: 00000000ffffffff
[  457.663434][ T6083] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffcf34b7bb0
[  457.663443][ T6083] R13: 00007fe57603445c R14: 000000000006fb0a R15: 00007ffcf34b7bf0
[  457.663467][ T6083]  </TASK>
[  457.681091][ T6083] F2FS-fs (loop1): Stopped filesystem due to reason: 3
[  457.800066][ T9668] F2FS-fs (loop0): Small segment_count (9 < 1 * 24)
[  457.842438][ T9668] F2FS-fs (loop0): Can't find valid F2FS filesystem in 1th superblock
[  457.938820][ T9668] F2FS-fs (loop0): f2fs_recover_fsync_data: recovery fsync data, check_only: 0
[  457.953753][ T9668] F2FS-fs (loop0): Try to recover 1th superblock, ret: 0
[  457.959454][ T9668] F2FS-fs (loop0): Mounted with checkpoint version = 48b305e5
[  457.990125][ T9668] syz.0.852: attempt to access beyond end of device
[  457.990125][ T9668] loop0: rw=2049, sector=53248, nr_sectors = 976 limit=40427
[  458.013943][ T6081] CPU: 1 UID: 0 PID: 6081 Comm: syz-executor Not tainted syzkaller #0 PREEMPT(full) 
[  458.013971][ T6081] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
[  458.013981][ T6081] Call Trace:
[  458.013989][ T6081]  <TASK>
[  458.013996][ T6081]  dump_stack_lvl+0xe8/0x150
[  458.014023][ T6081]  f2fs_stop_checkpoint+0x3f6/0x5d0
[  458.014046][ T6081]  f2fs_write_end_io+0x124b/0x1710
[  458.014071][ T6081]  __submit_merged_bio+0x258/0x6a0
[  458.014081][ T6081]  ? rcu_is_watching+0x15/0xb0
[  458.014099][ T6081]  __submit_merged_write_cond+0x3c9/0x4e0
[  458.014113][ T6081]  ? __pfx___submit_merged_write_cond+0x10/0x10
[  458.014140][ T6081]  f2fs_write_data_pages+0x2a27/0x36f0
[  458.014185][ T6081]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  458.014215][ T6081]  ? check_path+0x21/0x40
[  458.014227][ T6081]  ? check_noncircular+0xda/0x150
[  458.014268][ T6081]  ? __pfx_hlock_conflict+0x10/0x10
[  458.014281][ T6081]  ? __bfs+0x153/0x290
[  458.014298][ T6081]  ? __pfx_hlock_conflict+0x10/0x10
[  458.014351][ T6081]  ? lockdep_unlock+0x5d/0xd0
[  458.014366][ T6081]  ? __lock_acquire+0x13e8/0x2cf0
[  458.014404][ T6081]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  458.014425][ T6081]  do_writepages+0x338/0x560
[  458.014453][ T6081]  ? do_raw_spin_unlock+0x4d/0x210
[  458.014474][ T6081]  filemap_fdatawrite+0x1e9/0x2f0
[  458.014497][ T6081]  ? __pfx_filemap_fdatawrite+0x10/0x10
[  458.014549][ T6081]  ? do_raw_spin_unlock+0x4d/0x210
[  458.014569][ T6081]  f2fs_sync_dirty_inodes+0x30e/0x830
[  458.014600][ T6081]  f2fs_write_checkpoint+0xa3d/0x2710
[  458.014664][ T6081]  ? __pfx_f2fs_write_checkpoint+0x10/0x10
[  458.014725][ T6081]  kill_f2fs_super+0x2dd/0x700
[  458.014752][ T6081]  ? __pfx_kill_f2fs_super+0x10/0x10
[  458.014781][ T6081]  ? call_rcu+0x64b/0x8b0
[  458.014795][ T6081]  ? lockdep_hardirqs_on+0x7a/0x110
[  458.014821][ T6081]  deactivate_locked_super+0xbc/0x110
[  458.014845][ T6081]  cleanup_mnt+0x3d3/0x460
[  458.014865][ T6081]  task_work_run+0x1d9/0x270
[  458.014889][ T6081]  ? __pfx_task_work_run+0x10/0x10
[  458.014916][ T6081]  exit_to_user_mode_loop+0x1fa/0x730
[  458.014936][ T6081]  ? rcu_is_watching+0x15/0xb0
[  458.014958][ T6081]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  458.014974][ T6081]  do_syscall_64+0x353/0x580
[  458.014990][ T6081]  ? trace_irq_disable+0x3b/0x140
[  458.015013][ T6081]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  458.015028][ T6081] RIP: 0033:0x7f534ad9f257
[  458.015043][ T6081] 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
[  458.015056][ T6081] RSP: 002b:00007ffe1190c078 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
[  458.015072][ T6081] RAX: 0000000000000000 RBX: 00007f534ae3445c RCX: 00007f534ad9f257
[  458.015082][ T6081] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffe1190c130
[  458.015091][ T6081] RBP: 00007ffe1190c130 R08: 00007ffe1190d130 R09: 00000000ffffffff
[  458.015101][ T6081] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffe1190d1c0
[  458.015110][ T6081] R13: 00007f534ae3445c R14: 000000000006fc7b R15: 00007ffe1190d200
[  458.015134][ T6081]  </TASK>
[  458.146606][ T6081] F2FS-fs (loop0): Stopped filesystem due to reason: 3
[  458.182007][ T9670] F2FS-fs (loop2): Small segment_count (9 < 1 * 24)
[  458.186166][ T9670] F2FS-fs (loop2): Can't find valid F2FS filesystem in 1th superblock
[  458.335178][ T9670] F2FS-fs (loop2): f2fs_recover_fsync_data: recovery fsync data, check_only: 0
[  458.358801][ T9670] F2FS-fs (loop2): Try to recover 1th superblock, ret: 0
[  458.365725][ T9670] F2FS-fs (loop2): Mounted with checkpoint version = 48b305e5
[  458.377884][   T34] kauditd_printk_skb: 18 callbacks suppressed
[  458.377902][   T34] audit: type=1800 audit(1785657567.455:1670): pid=9670 uid=0 auid=4294967295 ses=4294967295 subj=unconfined op=collect_data cause=failed(directio) comm="syz.2.851" name="file1" dev="loop2" ino=10 res=0 errno=0
[  458.404501][   T34] audit: type=1800 audit(1785657567.475:1671): pid=9670 uid=0 auid=4294967295 ses=4294967295 subj=unconfined op=collect_data cause=failed(directio) comm="syz.2.851" name="file1" dev="loop2" ino=10 res=0 errno=0
[  458.426599][ T6089] CPU: 0 UID: 0 PID: 6089 Comm: syz-executor Not tainted syzkaller #0 PREEMPT(full) 
[  458.426624][ T6089] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
[  458.426635][ T6089] Call Trace:
[  458.426643][ T6089]  <TASK>
[  458.426650][ T6089]  dump_stack_lvl+0xe8/0x150
[  458.426684][ T6089]  f2fs_stop_checkpoint+0x3f6/0x5d0
[  458.426709][ T6089]  f2fs_write_end_io+0x124b/0x1710
[  458.426744][ T6089]  __submit_merged_bio+0x258/0x6a0
[  458.426761][ T6089]  ? rcu_is_watching+0x15/0xb0
[  458.426785][ T6089]  __submit_merged_write_cond+0x3c9/0x4e0
[  458.426830][ T6089]  ? __pfx___submit_merged_write_cond+0x10/0x10
[  458.426863][ T6089]  f2fs_write_data_pages+0x2a27/0x36f0
[  458.426883][ T6089]  ? __lock_acquire+0x683/0x2cf0
[  458.426923][ T6089]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  458.426977][ T6089]  ? __pfx_hlock_conflict+0x10/0x10
[  458.426990][ T6089]  ? __bfs+0x153/0x290
[  458.427006][ T6089]  ? __pfx_hlock_conflict+0x10/0x10
[  458.427031][ T6089]  ? lockdep_unlock+0x5d/0xd0
[  458.427052][ T6089]  ? __lock_acquire+0x13e8/0x2cf0
[  458.427087][ T6089]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  458.427110][ T6089]  do_writepages+0x338/0x560
[  458.427140][ T6089]  ? do_raw_spin_unlock+0x4d/0x210
[  458.427161][ T6089]  filemap_fdatawrite+0x1e9/0x2f0
[  458.427186][ T6089]  ? __pfx_filemap_fdatawrite+0x10/0x10
[  458.427236][ T6089]  ? do_raw_spin_unlock+0x4d/0x210
[  458.427255][ T6089]  f2fs_sync_dirty_inodes+0x30e/0x830
[  458.427311][ T6089]  f2fs_write_checkpoint+0xa3d/0x2710
[  458.427354][ T6089]  ? __pfx_f2fs_write_checkpoint+0x10/0x10
[  458.427404][ T6089]  ? __pfx_kill_f2fs_super+0x10/0x10
[  458.427430][ T6089]  kill_f2fs_super+0x2dd/0x700
[  458.427456][ T6089]  ? __pfx_kill_f2fs_super+0x10/0x10
[  458.427484][ T6089]  ? call_rcu+0x64b/0x8b0
[  458.427497][ T6089]  ? lockdep_hardirqs_on+0x7a/0x110
[  458.427526][ T6089]  deactivate_locked_super+0xbc/0x110
[  458.427547][ T6089]  cleanup_mnt+0x3d3/0x460
[  458.427568][ T6089]  task_work_run+0x1d9/0x270
[  458.427594][ T6089]  ? __pfx_task_work_run+0x10/0x10
[  458.427621][ T6089]  exit_to_user_mode_loop+0x1fa/0x730
[  458.427640][ T6089]  ? rcu_is_watching+0x15/0xb0
[  458.427661][ T6089]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  458.427680][ T6089]  do_syscall_64+0x353/0x580
[  458.427695][ T6089]  ? trace_irq_disable+0x3b/0x140
[  458.427717][ T6089]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  458.427732][ T6089] RIP: 0033:0x7f59c919f257
[  458.427748][ T6089] 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
[  458.427760][ T6089] RSP: 002b:00007ffd0e705d98 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
[  458.427777][ T6089] RAX: 0000000000000000 RBX: 00007f59c923445c RCX: 00007f59c919f257
[  458.427786][ T6089] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffd0e705e50
[  458.427795][ T6089] RBP: 00007ffd0e705e50 R08: 00007ffd0e706e50 R09: 00000000ffffffff
[  458.427805][ T6089] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffd0e706ee0
[  458.427814][ T6089] R13: 00007f59c923445c R14: 000000000006fe19 R15: 00007ffd0e706f20
[  458.427837][ T6089]  </TASK>
[  458.633803][ T9674] F2FS-fs (loop1): Small segment_count (9 < 1 * 24)
[  458.636701][ T9674] F2FS-fs (loop1): Can't find valid F2FS filesystem in 1th superblock
[  458.681895][ T6089] F2FS-fs (loop2): Stopped filesystem due to reason: 3
[  458.703460][ T9674] F2FS-fs (loop1): f2fs_recover_fsync_data: recovery fsync data, check_only: 0
[  458.720038][ T9674] F2FS-fs (loop1): Try to recover 1th superblock, ret: 0
[  458.723742][ T9678] set_capacity_and_notify: 4 callbacks suppressed
[  458.723758][ T9678] loop0: detected capacity change from 0 to 40427
[  458.730325][ T9674] F2FS-fs (loop1): Mounted with checkpoint version = 48b305e5
[  458.735355][   T34] audit: type=1800 audit(1785657567.815:1672): pid=9674 uid=0 auid=4294967295 ses=4294967295 subj=unconfined op=collect_data cause=failed(directio) comm="syz.1.853" name="file1" dev="loop1" ino=10 res=0 errno=0
[  458.743839][ T9678] F2FS-fs (loop0): Small segment_count (9 < 1 * 24)
[  458.746834][ T9678] F2FS-fs (loop0): Can't find valid F2FS filesystem in 1th superblock
[  458.769731][   T34] audit: type=1800 audit(1785657567.825:1673): pid=9674 uid=0 auid=4294967295 ses=4294967295 subj=unconfined op=collect_data cause=failed(directio) comm="syz.1.853" name="file1" dev="loop1" ino=10 res=0 errno=0
[  458.843364][ T6083] CPU: 1 UID: 0 PID: 6083 Comm: syz-executor Not tainted syzkaller #0 PREEMPT(full) 
[  458.843390][ T6083] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
[  458.843400][ T6083] Call Trace:
[  458.843408][ T6083]  <TASK>
[  458.843415][ T6083]  dump_stack_lvl+0xe8/0x150
[  458.843461][ T6083]  f2fs_stop_checkpoint+0x3f6/0x5d0
[  458.843486][ T6083]  f2fs_write_end_io+0x124b/0x1710
[  458.843524][ T6083]  __submit_merged_bio+0x258/0x6a0
[  458.843542][ T6083]  ? rcu_is_watching+0x15/0xb0
[  458.843567][ T6083]  __submit_merged_write_cond+0x3c9/0x4e0
[  458.843592][ T6083]  ? __pfx___submit_merged_write_cond+0x10/0x10
[  458.843648][ T6083]  f2fs_write_data_pages+0x2a27/0x36f0
[  458.843694][ T6083]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  458.843744][ T6083]  ? __pfx_hlock_conflict+0x10/0x10
[  458.843757][ T6083]  ? __bfs+0x153/0x290
[  458.843774][ T6083]  ? __pfx_hlock_conflict+0x10/0x10
[  458.843801][ T6083]  ? lockdep_unlock+0x5d/0xd0
[  458.843816][ T6083]  ? __lock_acquire+0x13e8/0x2cf0
[  458.843854][ T6083]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  458.843875][ T6083]  do_writepages+0x338/0x560
[  458.843902][ T6083]  ? do_raw_spin_unlock+0x4d/0x210
[  458.843922][ T6083]  filemap_fdatawrite+0x1e9/0x2f0
[  458.843945][ T6083]  ? __pfx_filemap_fdatawrite+0x10/0x10
[  458.843997][ T6083]  ? do_raw_spin_unlock+0x4d/0x210
[  458.844016][ T6083]  f2fs_sync_dirty_inodes+0x30e/0x830
[  458.844049][ T6083]  f2fs_write_checkpoint+0xa3d/0x2710
[  458.844090][ T6083]  ? __pfx_f2fs_write_checkpoint+0x10/0x10
[  458.844149][ T6083]  kill_f2fs_super+0x2dd/0x700
[  458.844176][ T6083]  ? __pfx_kill_f2fs_super+0x10/0x10
[  458.844210][ T6083]  ? call_rcu+0x64b/0x8b0
[  458.844223][ T6083]  ? lockdep_hardirqs_on+0x7a/0x110
[  458.844277][ T6083]  deactivate_locked_super+0xbc/0x110
[  458.844302][ T6083]  cleanup_mnt+0x3d3/0x460
[  458.844322][ T6083]  task_work_run+0x1d9/0x270
[  458.844346][ T6083]  ? __pfx_task_work_run+0x10/0x10
[  458.844374][ T6083]  exit_to_user_mode_loop+0x1fa/0x730
[  458.844391][ T6083]  ? rcu_is_watching+0x15/0xb0
[  458.844412][ T6083]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  458.844427][ T6083]  do_syscall_64+0x353/0x580
[  458.844443][ T6083]  ? trace_irq_disable+0x3b/0x140
[  458.844467][ T6083]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  458.844481][ T6083] RIP: 0033:0x7fe575f9f257
[  458.844496][ T6083] 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
[  458.844508][ T6083] RSP: 002b:00007ffcf34b6a68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
[  458.844526][ T6083] RAX: 0000000000000000 RBX: 00007fe57603445c RCX: 00007fe575f9f257
[  458.844535][ T6083] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffcf34b6b20
[  458.844542][ T6083] RBP: 00007ffcf34b6b20 R08: 00007ffcf34b7b20 R09: 00000000ffffffff
[  458.844549][ T6083] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffcf34b7bb0
[  458.844559][ T6083] R13: 00007fe57603445c R14: 000000000006ffad R15: 00007ffcf34b7bf0
[  458.844583][ T6083]  </TASK>
[  458.847216][ T9678] F2FS-fs (loop0): f2fs_recover_fsync_data: recovery fsync data, check_only: 0
[  458.869974][ T6083] F2FS-fs (loop1): Stopped filesystem due to reason: 3
[  458.876323][ T9678] F2FS-fs (loop0): Try to recover 1th superblock, ret: 0
[  458.993858][ T9678] F2FS-fs (loop0): Mounted with checkpoint version = 48b305e5
[  458.999266][   T34] audit: type=1800 audit(1785657568.075:1674): pid=9678 uid=0 auid=4294967295 ses=4294967295 subj=unconfined op=collect_data cause=failed(directio) comm="syz.0.854" name="file1" dev="loop0" ino=10 res=0 errno=0
[  459.017317][   T34] audit: type=1800 audit(1785657568.085:1675): pid=9678 uid=0 auid=4294967295 ses=4294967295 subj=unconfined op=collect_data cause=failed(directio) comm="syz.0.854" name="file1" dev="loop0" ino=10 res=0 errno=0
[  459.027726][ T6081] CPU: 0 UID: 0 PID: 6081 Comm: syz-executor Not tainted syzkaller #0 PREEMPT(full) 
[  459.027740][ T6081] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
[  459.027746][ T6081] Call Trace:
[  459.027751][ T6081]  <TASK>
[  459.027760][ T6081]  dump_stack_lvl+0xe8/0x150
[  459.027780][ T6081]  f2fs_stop_checkpoint+0x3f6/0x5d0
[  459.027797][ T6081]  f2fs_write_end_io+0x124b/0x1710
[  459.027820][ T6081]  __submit_merged_bio+0x258/0x6a0
[  459.027831][ T6081]  ? rcu_is_watching+0x15/0xb0
[  459.027849][ T6081]  __submit_merged_write_cond+0x3c9/0x4e0
[  459.027864][ T6081]  ? __pfx___submit_merged_write_cond+0x10/0x10
[  459.027886][ T6081]  f2fs_write_data_pages+0x2a27/0x36f0
[  459.027914][ T6081]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  459.027948][ T6081]  ? __pfx_hlock_conflict+0x10/0x10
[  459.027955][ T6081]  ? __bfs+0x153/0x290
[  459.027966][ T6081]  ? __pfx_hlock_conflict+0x10/0x10
[  459.028008][ T6081]  ? lockdep_unlock+0x5d/0xd0
[  459.028021][ T6081]  ? __lock_acquire+0x13e8/0x2cf0
[  459.028045][ T6081]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  459.028057][ T6081]  do_writepages+0x338/0x560
[  459.028095][ T6081]  ? do_raw_spin_unlock+0x4d/0x210
[  459.028108][ T6081]  filemap_fdatawrite+0x1e9/0x2f0
[  459.028122][ T6081]  ? __pfx_filemap_fdatawrite+0x10/0x10
[  459.028158][ T6081]  ? do_raw_spin_unlock+0x4d/0x210
[  459.028169][ T6081]  f2fs_sync_dirty_inodes+0x30e/0x830
[  459.028190][ T6081]  f2fs_write_checkpoint+0xa3d/0x2710
[  459.028218][ T6081]  ? __pfx_f2fs_write_checkpoint+0x10/0x10
[  459.028278][ T6081]  kill_f2fs_super+0x2dd/0x700
[  459.028297][ T6081]  ? __pfx_kill_f2fs_super+0x10/0x10
[  459.028315][ T6081]  ? call_rcu+0x64b/0x8b0
[  459.028323][ T6081]  ? lockdep_hardirqs_on+0x7a/0x110
[  459.028341][ T6081]  deactivate_locked_super+0xbc/0x110
[  459.028356][ T6081]  cleanup_mnt+0x3d3/0x460
[  459.028368][ T6081]  task_work_run+0x1d9/0x270
[  459.028384][ T6081]  ? __pfx_task_work_run+0x10/0x10
[  459.028401][ T6081]  exit_to_user_mode_loop+0x1fa/0x730
[  459.028413][ T6081]  ? rcu_is_watching+0x15/0xb0
[  459.028427][ T6081]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  459.028436][ T6081]  do_syscall_64+0x353/0x580
[  459.028448][ T6081]  ? trace_irq_disable+0x3b/0x140
[  459.028463][ T6081]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  459.028472][ T6081] RIP: 0033:0x7f534ad9f257
[  459.028487][ T6081] 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
[  459.028495][ T6081] RSP: 002b:00007ffe1190c078 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
[  459.028505][ T6081] RAX: 0000000000000000 RBX: 00007f534ae3445c RCX: 00007f534ad9f257
[  459.028511][ T6081] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffe1190c130
[  459.028516][ T6081] RBP: 00007ffe1190c130 R08: 00007ffe1190d130 R09: 00000000ffffffff
[  459.028522][ T6081] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffe1190d1c0
[  459.028527][ T6081] R13: 00007f534ae3445c R14: 0000000000070074 R15: 00007ffe1190d200
[  459.028542][ T6081]  </TASK>
[  459.139736][ T6081] F2FS-fs (loop0): Stopped filesystem due to reason: 3
[  459.278759][   T10] loop0: lost filesystem error report for type 5 error -108
[  459.561170][ T9685] loop2: detected capacity change from 0 to 40427
[  459.581024][ T9685] F2FS-fs (loop2): Small segment_count (9 < 1 * 24)
[  459.586511][ T9685] F2FS-fs (loop2): Can't find valid F2FS filesystem in 1th superblock
[  459.650271][ T9685] F2FS-fs (loop2): f2fs_recover_fsync_data: recovery fsync data, check_only: 0
[  459.652080][ T9687] loop1: detected capacity change from 0 to 40427
[  459.660224][ T9685] F2FS-fs (loop2): Try to recover 1th superblock, ret: 0
[  459.663628][ T9687] F2FS-fs (loop1): Small segment_count (9 < 1 * 24)
[  459.669422][ T9685] F2FS-fs (loop2): Mounted with checkpoint version = 48b305e5
[  459.675428][   T34] audit: type=1800 audit(1785657568.755:1676): pid=9685 uid=0 auid=4294967295 ses=4294967295 subj=unconfined op=collect_data cause=failed(directio) comm="syz.2.855" name="file1" dev="loop2" ino=10 res=0 errno=0
[  459.687648][ T9687] F2FS-fs (loop1): Can't find valid F2FS filesystem in 1th superblock
[  459.709921][ T6089] CPU: 0 UID: 0 PID: 6089 Comm: syz-executor Not tainted syzkaller #0 PREEMPT(full) 
[  459.709936][ T6089] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
[  459.709943][ T6089] Call Trace:
[  459.709947][ T6089]  <TASK>
[  459.709952][ T6089]  dump_stack_lvl+0xe8/0x150
[  459.709979][ T6089]  f2fs_stop_checkpoint+0x3f6/0x5d0
[  459.709994][ T6089]  f2fs_write_end_io+0x124b/0x1710
[  459.710015][ T6089]  __submit_merged_bio+0x258/0x6a0
[  459.710026][ T6089]  ? rcu_is_watching+0x15/0xb0
[  459.710042][ T6089]  __submit_merged_write_cond+0x3c9/0x4e0
[  459.710056][ T6089]  ? __pfx___submit_merged_write_cond+0x10/0x10
[  459.710076][ T6089]  f2fs_write_data_pages+0x2a27/0x36f0
[  459.710088][ T6089]  ? __lock_acquire+0x683/0x2cf0
[  459.710113][ T6089]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  459.710143][ T6089]  ? __pfx_hlock_conflict+0x10/0x10
[  459.710151][ T6089]  ? __bfs+0x153/0x290
[  459.710161][ T6089]  ? __pfx_hlock_conflict+0x10/0x10
[  459.710175][ T6089]  ? lockdep_unlock+0x5d/0xd0
[  459.710208][ T6089]  ? __lock_acquire+0x13e8/0x2cf0
[  459.710231][ T6089]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  459.710244][ T6089]  do_writepages+0x338/0x560
[  459.710260][ T6089]  ? do_raw_spin_unlock+0x4d/0x210
[  459.710272][ T6089]  filemap_fdatawrite+0x1e9/0x2f0
[  459.710286][ T6089]  ? __pfx_filemap_fdatawrite+0x10/0x10
[  459.710316][ T6089]  ? do_raw_spin_unlock+0x4d/0x210
[  459.710327][ T6089]  f2fs_sync_dirty_inodes+0x30e/0x830
[  459.710345][ T6089]  f2fs_write_checkpoint+0xa3d/0x2710
[  459.710371][ T6089]  ? __pfx_f2fs_write_checkpoint+0x10/0x10
[  459.710405][ T6089]  kill_f2fs_super+0x2dd/0x700
[  459.710421][ T6089]  ? __pfx_kill_f2fs_super+0x10/0x10
[  459.710438][ T6089]  ? call_rcu+0x64b/0x8b0
[  459.710446][ T6089]  ? lockdep_hardirqs_on+0x7a/0x110
[  459.710462][ T6089]  deactivate_locked_super+0xbc/0x110
[  459.710475][ T6089]  cleanup_mnt+0x3d3/0x460
[  459.710486][ T6089]  task_work_run+0x1d9/0x270
[  459.710500][ T6089]  ? __pfx_task_work_run+0x10/0x10
[  459.710517][ T6089]  exit_to_user_mode_loop+0x1fa/0x730
[  459.710528][ T6089]  ? rcu_is_watching+0x15/0xb0
[  459.710541][ T6089]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  459.710550][ T6089]  do_syscall_64+0x353/0x580
[  459.710559][ T6089]  ? trace_irq_disable+0x3b/0x140
[  459.710573][ T6089]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  459.710581][ T6089] RIP: 0033:0x7f59c919f257
[  459.710590][ T6089] 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
[  459.710597][ T6089] RSP: 002b:00007ffd0e705d98 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
[  459.710607][ T6089] RAX: 0000000000000000 RBX: 00007f59c923445c RCX: 00007f59c919f257
[  459.710613][ T6089] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffd0e705e50
[  459.710618][ T6089] RBP: 00007ffd0e705e50 R08: 00007ffd0e706e50 R09: 00000000ffffffff
[  459.710624][ T6089] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffd0e706ee0
[  459.710630][ T6089] R13: 00007f59c923445c R14: 0000000000070316 R15: 00007ffd0e706f20
[  459.710643][ T6089]  </TASK>
[  459.710647][ T6089] F2FS-fs (loop2): Stopped filesystem due to reason: 3
[  459.713451][   T34] audit: type=1800 audit(1785657568.755:1677): pid=9685 uid=0 auid=4294967295 ses=4294967295 subj=unconfined op=collect_data cause=failed(directio) comm="syz.2.855" name="file1" dev="loop2" ino=10 res=0 errno=0
[  459.896255][ T9687] F2FS-fs (loop1): f2fs_recover_fsync_data: recovery fsync data, check_only: 0
[  459.901909][ T9687] F2FS-fs (loop1): Try to recover 1th superblock, ret: 0
[  459.904837][ T9687] F2FS-fs (loop1): Mounted with checkpoint version = 48b305e5
[  459.908871][   T34] audit: type=1800 audit(1785657568.985:1678): pid=9687 uid=0 auid=4294967295 ses=4294967295 subj=unconfined op=collect_data cause=failed(directio) comm="syz.1.856" name="file1" dev="loop1" ino=10 res=0 errno=0
[  459.922689][   T34] audit: type=1800 audit(1785657569.005:1679): pid=9687 uid=0 auid=4294967295 ses=4294967295 subj=unconfined op=collect_data cause=failed(directio) comm="syz.1.856" name="file1" dev="loop1" ino=10 res=0 errno=0
[  459.937020][ T6083] CPU: 0 UID: 0 PID: 6083 Comm: syz-executor Not tainted syzkaller #0 PREEMPT(full) 
[  459.937043][ T6083] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
[  459.937053][ T6083] Call Trace:
[  459.937060][ T6083]  <TASK>
[  459.937067][ T6083]  dump_stack_lvl+0xe8/0x150
[  459.937093][ T6083]  f2fs_stop_checkpoint+0x3f6/0x5d0
[  459.937116][ T6083]  f2fs_write_end_io+0x124b/0x1710
[  459.937152][ T6083]  __submit_merged_bio+0x258/0x6a0
[  459.937227][ T6083]  ? rcu_is_watching+0x15/0xb0
[  459.937253][ T6083]  __submit_merged_write_cond+0x3c9/0x4e0
[  459.937283][ T6083]  ? __pfx___submit_merged_write_cond+0x10/0x10
[  459.937317][ T6083]  f2fs_write_data_pages+0x2a27/0x36f0
[  459.937363][ T6083]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  459.937415][ T6083]  ? __pfx_hlock_conflict+0x10/0x10
[  459.937428][ T6083]  ? __bfs+0x153/0x290
[  459.937456][ T6083]  ? __pfx_hlock_conflict+0x10/0x10
[  459.937487][ T6083]  ? lockdep_unlock+0x5d/0xd0
[  459.937502][ T6083]  ? __lock_acquire+0x13e8/0x2cf0
[  459.937540][ T6083]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  459.937561][ T6083]  do_writepages+0x338/0x560
[  459.937589][ T6083]  ? do_raw_spin_unlock+0x4d/0x210
[  459.937609][ T6083]  filemap_fdatawrite+0x1e9/0x2f0
[  459.937631][ T6083]  ? __pfx_filemap_fdatawrite+0x10/0x10
[  459.937683][ T6083]  ? do_raw_spin_unlock+0x4d/0x210
[  459.937703][ T6083]  f2fs_sync_dirty_inodes+0x30e/0x830
[  459.937735][ T6083]  f2fs_write_checkpoint+0xa3d/0x2710
[  459.937779][ T6083]  ? __pfx_f2fs_write_checkpoint+0x10/0x10
[  459.937838][ T6083]  kill_f2fs_super+0x2dd/0x700
[  459.937863][ T6083]  ? __pfx_kill_f2fs_super+0x10/0x10
[  459.937893][ T6083]  ? call_rcu+0x64b/0x8b0
[  459.937906][ T6083]  ? lockdep_hardirqs_on+0x7a/0x110
[  459.937933][ T6083]  deactivate_locked_super+0xbc/0x110
[  459.937954][ T6083]  cleanup_mnt+0x3d3/0x460
[  459.937972][ T6083]  task_work_run+0x1d9/0x270
[  459.937996][ T6083]  ? __pfx_task_work_run+0x10/0x10
[  459.938023][ T6083]  exit_to_user_mode_loop+0x1fa/0x730
[  459.938039][ T6083]  ? rcu_is_watching+0x15/0xb0
[  459.938059][ T6083]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  459.938073][ T6083]  do_syscall_64+0x353/0x580
[  459.938086][ T6083]  ? trace_irq_disable+0x3b/0x140
[  459.938108][ T6083]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  459.938122][ T6083] RIP: 0033:0x7fe575f9f257
[  459.938136][ T6083] 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
[  459.938147][ T6083] RSP: 002b:00007ffcf34b6a68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
[  459.938163][ T6083] RAX: 0000000000000000 RBX: 00007fe57603445c RCX: 00007fe575f9f257
[  459.938202][ T6083] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffcf34b6b20
[  459.938212][ T6083] RBP: 00007ffcf34b6b20 R08: 00007ffcf34b7b20 R09: 00000000ffffffff
[  459.938223][ T6083] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffcf34b7bb0
[  459.938232][ T6083] R13: 00007fe57603445c R14: 0000000000070400 R15: 00007ffcf34b7bf0
[  459.938257][ T6083]  </TASK>
[  459.939437][ T6083] F2FS-fs (loop1): Stopped filesystem due to reason: 3
[  460.021873][ T9689] loop0: detected capacity change from 0 to 40427
[  460.070790][ T9689] F2FS-fs (loop0): Small segment_count (9 < 1 * 24)
[  460.073635][ T9689] F2FS-fs (loop0): Can't find valid F2FS filesystem in 1th superblock
[  460.185028][ T9689] F2FS-fs (loop0): f2fs_recover_fsync_data: recovery fsync data, check_only: 0
[  460.203530][ T9689] F2FS-fs (loop0): Try to recover 1th superblock, ret: 0
[  460.206225][ T9689] F2FS-fs (loop0): Mounted with checkpoint version = 48b305e5
[  460.250895][ T6081] CPU: 0 UID: 0 PID: 6081 Comm: syz-executor Not tainted syzkaller #0 PREEMPT(full) 
[  460.250927][ T6081] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
[  460.250937][ T6081] Call Trace:
[  460.250944][ T6081]  <TASK>
[  460.250952][ T6081]  dump_stack_lvl+0xe8/0x150
[  460.251014][ T6081]  f2fs_stop_checkpoint+0x3f6/0x5d0
[  460.251039][ T6081]  f2fs_write_end_io+0x124b/0x1710
[  460.251076][ T6081]  __submit_merged_bio+0x258/0x6a0
[  460.251094][ T6081]  ? rcu_is_watching+0x15/0xb0
[  460.251121][ T6081]  __submit_merged_write_cond+0x3c9/0x4e0
[  460.251147][ T6081]  ? __pfx___submit_merged_write_cond+0x10/0x10
[  460.251210][ T6081]  f2fs_write_data_pages+0x2a27/0x36f0
[  460.251262][ T6081]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  460.251307][ T6081]  ? __pfx_hlock_conflict+0x10/0x10
[  460.251318][ T6081]  ? __bfs+0x153/0x290
[  460.251332][ T6081]  ? __pfx_hlock_conflict+0x10/0x10
[  460.251354][ T6081]  ? lockdep_unlock+0x5d/0xd0
[  460.251373][ T6081]  ? __lock_acquire+0x13e8/0x2cf0
[  460.251414][ T6081]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  460.251432][ T6081]  do_writepages+0x338/0x560
[  460.251460][ T6081]  ? do_raw_spin_unlock+0x4d/0x210
[  460.251483][ T6081]  filemap_fdatawrite+0x1e9/0x2f0
[  460.251507][ T6081]  ? __pfx_filemap_fdatawrite+0x10/0x10
[  460.251564][ T6081]  ? do_raw_spin_unlock+0x4d/0x210
[  460.251582][ T6081]  f2fs_sync_dirty_inodes+0x30e/0x830
[  460.251615][ T6081]  f2fs_write_checkpoint+0xa3d/0x2710
[  460.251663][ T6081]  ? __pfx_f2fs_write_checkpoint+0x10/0x10
[  460.251723][ T6081]  kill_f2fs_super+0x2dd/0x700
[  460.251749][ T6081]  ? __pfx_kill_f2fs_super+0x10/0x10
[  460.251782][ T6081]  ? call_rcu+0x64b/0x8b0
[  460.251796][ T6081]  ? lockdep_hardirqs_on+0x7a/0x110
[  460.251822][ T6081]  deactivate_locked_super+0xbc/0x110
[  460.251845][ T6081]  cleanup_mnt+0x3d3/0x460
[  460.251865][ T6081]  task_work_run+0x1d9/0x270
[  460.251890][ T6081]  ? __pfx_task_work_run+0x10/0x10
[  460.251918][ T6081]  exit_to_user_mode_loop+0x1fa/0x730
[  460.251937][ T6081]  ? rcu_is_watching+0x15/0xb0
[  460.251958][ T6081]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  460.251973][ T6081]  do_syscall_64+0x353/0x580
[  460.251990][ T6081]  ? trace_irq_disable+0x3b/0x140
[  460.252014][ T6081]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  460.252029][ T6081] RIP: 0033:0x7f534ad9f257
[  460.252045][ T6081] 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
[  460.252058][ T6081] RSP: 002b:00007ffe1190c078 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
[  460.252074][ T6081] RAX: 0000000000000000 RBX: 00007f534ae3445c RCX: 00007f534ad9f257
[  460.252083][ T6081] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffe1190c130
[  460.252091][ T6081] RBP: 00007ffe1190c130 R08: 00007ffe1190d130 R09: 00000000ffffffff
[  460.252099][ T6081] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffe1190d1c0
[  460.252109][ T6081] R13: 00007f534ae3445c R14: 0000000000070531 R15: 00007ffe1190d200
[  460.252132][ T6081]  </TASK>
[  460.256294][ T6081] F2FS-fs (loop0): Stopped filesystem due to reason: 3
[  460.502324][ T9697] loop2: detected capacity change from 0 to 40427
[  460.528676][ T9697] F2FS-fs (loop2): Small segment_count (9 < 1 * 24)
[  460.532474][ T9697] F2FS-fs (loop2): Can't find valid F2FS filesystem in 1th superblock
[  460.611181][ T9697] F2FS-fs (loop2): f2fs_recover_fsync_data: recovery fsync data, check_only: 0
[  460.623600][ T9697] F2FS-fs (loop2): Try to recover 1th superblock, ret: 0
[  460.628231][ T9697] F2FS-fs (loop2): Mounted with checkpoint version = 48b305e5
[  460.665108][ T6089] CPU: 0 UID: 0 PID: 6089 Comm: syz-executor Not tainted syzkaller #0 PREEMPT(full) 
[  460.665175][ T6089] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
[  460.665181][ T6089] Call Trace:
[  460.665187][ T6089]  <TASK>
[  460.665191][ T6089]  dump_stack_lvl+0xe8/0x150
[  460.665212][ T6089]  f2fs_stop_checkpoint+0x3f6/0x5d0
[  460.665228][ T6089]  f2fs_write_end_io+0x124b/0x1710
[  460.665250][ T6089]  __submit_merged_bio+0x258/0x6a0
[  460.665261][ T6089]  ? rcu_is_watching+0x15/0xb0
[  460.665278][ T6089]  __submit_merged_write_cond+0x3c9/0x4e0
[  460.665292][ T6089]  ? __pfx___submit_merged_write_cond+0x10/0x10
[  460.665312][ T6089]  f2fs_write_data_pages+0x2a27/0x36f0
[  460.665324][ T6089]  ? __lock_acquire+0x683/0x2cf0
[  460.665350][ T6089]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  460.665395][ T6089]  ? __pfx_hlock_conflict+0x10/0x10
[  460.665405][ T6089]  ? __bfs+0x153/0x290
[  460.665415][ T6089]  ? __pfx_hlock_conflict+0x10/0x10
[  460.665429][ T6089]  ? lockdep_unlock+0x5d/0xd0
[  460.665438][ T6089]  ? __lock_acquire+0x13e8/0x2cf0
[  460.665460][ T6089]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  460.665472][ T6089]  do_writepages+0x338/0x560
[  460.665489][ T6089]  ? do_raw_spin_unlock+0x4d/0x210
[  460.665501][ T6089]  filemap_fdatawrite+0x1e9/0x2f0
[  460.665515][ T6089]  ? __pfx_filemap_fdatawrite+0x10/0x10
[  460.665549][ T6089]  ? do_raw_spin_unlock+0x4d/0x210
[  460.665560][ T6089]  f2fs_sync_dirty_inodes+0x30e/0x830
[  460.665579][ T6089]  f2fs_write_checkpoint+0xa3d/0x2710
[  460.665605][ T6089]  ? __pfx_f2fs_write_checkpoint+0x10/0x10
[  460.665639][ T6089]  kill_f2fs_super+0x2dd/0x700
[  460.665655][ T6089]  ? __pfx_kill_f2fs_super+0x10/0x10
[  460.665672][ T6089]  ? call_rcu+0x64b/0x8b0
[  460.665680][ T6089]  ? lockdep_hardirqs_on+0x7a/0x110
[  460.665696][ T6089]  deactivate_locked_super+0xbc/0x110
[  460.665715][ T6089]  cleanup_mnt+0x3d3/0x460
[  460.665727][ T6089]  task_work_run+0x1d9/0x270
[  460.665742][ T6089]  ? __pfx_task_work_run+0x10/0x10
[  460.665758][ T6089]  exit_to_user_mode_loop+0x1fa/0x730
[  460.665774][ T6089]  ? rcu_is_watching+0x15/0xb0
[  460.665786][ T6089]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  460.665796][ T6089]  do_syscall_64+0x353/0x580
[  460.665806][ T6089]  ? trace_irq_disable+0x3b/0x140
[  460.665825][ T6089]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  460.665834][ T6089] RIP: 0033:0x7f59c919f257
[  460.665844][ T6089] 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
[  460.665852][ T6089] RSP: 002b:00007ffd0e705d98 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
[  460.665862][ T6089] RAX: 0000000000000000 RBX: 00007f59c923445c RCX: 00007f59c919f257
[  460.665868][ T6089] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffd0e705e50
[  460.665873][ T6089] RBP: 00007ffd0e705e50 R08: 00007ffd0e706e50 R09: 00000000ffffffff
[  460.665878][ T6089] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffd0e706ee0
[  460.665884][ T6089] R13: 00007f59c923445c R14: 00000000000706d1 R15: 00007ffd0e706f20
[  460.665897][ T6089]  </TASK>
[  460.666454][ T6089] F2FS-fs (loop2): Stopped filesystem due to reason: 3
[  460.795848][ T9699] loop1: detected capacity change from 0 to 40427
[  460.808657][   T10] loop2: lost filesystem error report for type 5 error -108
[  460.813831][ T9699] F2FS-fs (loop1): Small segment_count (9 < 1 * 24)
[  460.819402][ T9699] F2FS-fs (loop1): Can't find valid F2FS filesystem in 1th superblock
[  460.919017][ T9703] loop0: detected capacity change from 0 to 40427
[  460.936657][ T9699] F2FS-fs (loop1): f2fs_recover_fsync_data: recovery fsync data, check_only: 0
[  460.937452][ T9703] F2FS-fs (loop0): Small segment_count (9 < 1 * 24)
[  460.958029][ T9699] F2FS-fs (loop1): Try to recover 1th superblock, ret: 0
[  460.961514][ T9699] F2FS-fs (loop1): Mounted with checkpoint version = 48b305e5
[  460.969552][ T9703] F2FS-fs (loop0): Can't find valid F2FS filesystem in 1th superblock
[  461.010880][ T6083] CPU: 1 UID: 0 PID: 6083 Comm: syz-executor Not tainted syzkaller #0 PREEMPT(full) 
[  461.010895][ T6083] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
[  461.010902][ T6083] Call Trace:
[  461.010907][ T6083]  <TASK>
[  461.010911][ T6083]  dump_stack_lvl+0xe8/0x150
[  461.010931][ T6083]  f2fs_stop_checkpoint+0x3f6/0x5d0
[  461.010947][ T6083]  f2fs_write_end_io+0x124b/0x1710
[  461.010970][ T6083]  __submit_merged_bio+0x258/0x6a0
[  461.010980][ T6083]  ? rcu_is_watching+0x15/0xb0
[  461.010998][ T6083]  __submit_merged_write_cond+0x3c9/0x4e0
[  461.011012][ T6083]  ? __pfx___submit_merged_write_cond+0x10/0x10
[  461.011032][ T6083]  f2fs_write_data_pages+0x2a27/0x36f0
[  461.011044][ T6083]  ? __lock_acquire+0x683/0x2cf0
[  461.011070][ T6083]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  461.011154][ T6083]  ? __pfx_hlock_conflict+0x10/0x10
[  461.011161][ T6083]  ? __bfs+0x153/0x290
[  461.011172][ T6083]  ? __pfx_hlock_conflict+0x10/0x10
[  461.011187][ T6083]  ? lockdep_unlock+0x5d/0xd0
[  461.011196][ T6083]  ? __lock_acquire+0x13e8/0x2cf0
[  461.011218][ T6083]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  461.011230][ T6083]  do_writepages+0x338/0x560
[  461.011247][ T6083]  ? do_raw_spin_unlock+0x4d/0x210
[  461.011259][ T6083]  filemap_fdatawrite+0x1e9/0x2f0
[  461.011274][ T6083]  ? __pfx_filemap_fdatawrite+0x10/0x10
[  461.011303][ T6083]  ? do_raw_spin_unlock+0x4d/0x210
[  461.011314][ T6083]  f2fs_sync_dirty_inodes+0x30e/0x830
[  461.011334][ T6083]  f2fs_write_checkpoint+0xa3d/0x2710
[  461.011365][ T6083]  ? __pfx_f2fs_write_checkpoint+0x10/0x10
[  461.011399][ T6083]  kill_f2fs_super+0x2dd/0x700
[  461.011416][ T6083]  ? __pfx_kill_f2fs_super+0x10/0x10
[  461.011433][ T6083]  ? call_rcu+0x64b/0x8b0
[  461.011441][ T6083]  ? lockdep_hardirqs_on+0x7a/0x110
[  461.011458][ T6083]  deactivate_locked_super+0xbc/0x110
[  461.011473][ T6083]  cleanup_mnt+0x3d3/0x460
[  461.011485][ T6083]  task_work_run+0x1d9/0x270
[  461.011501][ T6083]  ? __pfx_task_work_run+0x10/0x10
[  461.011517][ T6083]  exit_to_user_mode_loop+0x1fa/0x730
[  461.011529][ T6083]  ? rcu_is_watching+0x15/0xb0
[  461.011542][ T6083]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  461.011551][ T6083]  do_syscall_64+0x353/0x580
[  461.011562][ T6083]  ? trace_irq_disable+0x3b/0x140
[  461.011576][ T6083]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  461.011585][ T6083] RIP: 0033:0x7fe575f9f257
[  461.011594][ T6083] 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
[  461.011601][ T6083] RSP: 002b:00007ffcf34b6a68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
[  461.011611][ T6083] RAX: 0000000000000000 RBX: 00007fe57603445c RCX: 00007fe575f9f257
[  461.011617][ T6083] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffcf34b6b20
[  461.011622][ T6083] RBP: 00007ffcf34b6b20 R08: 00007ffcf34b7b20 R09: 00000000ffffffff
[  461.011628][ T6083] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffcf34b7bb0
[  461.011633][ T6083] R13: 00007fe57603445c R14: 0000000000070816 R15: 00007ffcf34b7bf0
[  461.011647][ T6083]  </TASK>
[  461.012920][ T6083] F2FS-fs (loop1): Stopped filesystem due to reason: 3
[  461.056948][ T9703] F2FS-fs (loop0): f2fs_recover_fsync_data: recovery fsync data, check_only: 0
[  461.176817][ T9703] F2FS-fs (loop0): Try to recover 1th superblock, ret: 0
[  461.180308][ T9703] F2FS-fs (loop0): Mounted with checkpoint version = 48b305e5
2026/08/02 07:59:30 executed programs: 852
[  461.248572][ T6081] CPU: 1 UID: 0 PID: 6081 Comm: syz-executor Not tainted syzkaller #0 PREEMPT(full) 
[  461.248594][ T6081] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
[  461.248602][ T6081] Call Trace:
[  461.248607][ T6081]  <TASK>
[  461.248618][ T6081]  dump_stack_lvl+0xe8/0x150
[  461.248640][ T6081]  f2fs_stop_checkpoint+0x3f6/0x5d0
[  461.248661][ T6081]  f2fs_write_end_io+0x124b/0x1710
[  461.248696][ T6081]  __submit_merged_bio+0x258/0x6a0
[  461.248714][ T6081]  ? rcu_is_watching+0x15/0xb0
[  461.248738][ T6081]  __submit_merged_write_cond+0x3c9/0x4e0
[  461.248763][ T6081]  ? __pfx___submit_merged_write_cond+0x10/0x10
[  461.248795][ T6081]  f2fs_write_data_pages+0x2a27/0x36f0
[  461.248811][ T6081]  ? __lock_acquire+0x683/0x2cf0
[  461.248852][ T6081]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  461.248902][ T6081]  ? __pfx_hlock_conflict+0x10/0x10
[  461.248914][ T6081]  ? __bfs+0x153/0x290
[  461.248930][ T6081]  ? __pfx_hlock_conflict+0x10/0x10
[  461.248955][ T6081]  ? lockdep_unlock+0x5d/0xd0
[  461.248969][ T6081]  ? __lock_acquire+0x13e8/0x2cf0
[  461.249004][ T6081]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  461.249024][ T6081]  do_writepages+0x338/0x560
[  461.249051][ T6081]  ? do_raw_spin_unlock+0x4d/0x210
[  461.249070][ T6081]  filemap_fdatawrite+0x1e9/0x2f0
[  461.249124][ T6081]  ? __pfx_filemap_fdatawrite+0x10/0x10
[  461.249173][ T6081]  ? do_raw_spin_unlock+0x4d/0x210
[  461.249193][ T6081]  f2fs_sync_dirty_inodes+0x30e/0x830
[  461.249222][ T6081]  f2fs_write_checkpoint+0xa3d/0x2710
[  461.249264][ T6081]  ? __pfx_f2fs_write_checkpoint+0x10/0x10
[  461.249342][ T6081]  kill_f2fs_super+0x2dd/0x700
[  461.249369][ T6081]  ? __pfx_kill_f2fs_super+0x10/0x10
[  461.249396][ T6081]  ? call_rcu+0x64b/0x8b0
[  461.249410][ T6081]  ? lockdep_hardirqs_on+0x7a/0x110
[  461.249435][ T6081]  deactivate_locked_super+0xbc/0x110
[  461.249456][ T6081]  cleanup_mnt+0x3d3/0x460
[  461.249475][ T6081]  task_work_run+0x1d9/0x270
[  461.249498][ T6081]  ? __pfx_task_work_run+0x10/0x10
[  461.249525][ T6081]  exit_to_user_mode_loop+0x1fa/0x730
[  461.249542][ T6081]  ? rcu_is_watching+0x15/0xb0
[  461.249561][ T6081]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  461.249576][ T6081]  do_syscall_64+0x353/0x580
[  461.249592][ T6081]  ? trace_irq_disable+0x3b/0x140
[  461.249614][ T6081]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  461.249629][ T6081] RIP: 0033:0x7f534ad9f257
[  461.249643][ T6081] 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
[  461.249657][ T6081] RSP: 002b:00007ffe1190c078 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
[  461.249674][ T6081] RAX: 0000000000000000 RBX: 00007f534ae3445c RCX: 00007f534ad9f257
[  461.249683][ T6081] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffe1190c130
[  461.249691][ T6081] RBP: 00007ffe1190c130 R08: 00007ffe1190d130 R09: 00000000ffffffff
[  461.249700][ T6081] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffe1190d1c0
[  461.249710][ T6081] R13: 00007f534ae3445c R14: 0000000000070912 R15: 00007ffe1190d200
[  461.249732][ T6081]  </TASK>
[  461.454200][ T6081] F2FS-fs (loop0): Stopped filesystem due to reason: 3
[  461.549991][ T9709] loop2: detected capacity change from 0 to 40427
[  461.554139][ T9709] F2FS-fs (loop2): Small segment_count (9 < 1 * 24)
[  461.556903][ T9709] F2FS-fs (loop2): Can't find valid F2FS filesystem in 1th superblock
[  461.621354][ T9711] loop1: detected capacity change from 0 to 40427
[  461.625555][ T9711] F2FS-fs (loop1): Small segment_count (9 < 1 * 24)
[  461.628371][ T9711] F2FS-fs (loop1): Can't find valid F2FS filesystem in 1th superblock
[  461.667030][ T9711] F2FS-fs (loop1): f2fs_recover_fsync_data: recovery fsync data, check_only: 0
[  461.674957][ T9711] F2FS-fs (loop1): Try to recover 1th superblock, ret: 0
[  461.678779][ T9711] F2FS-fs (loop1): Mounted with checkpoint version = 48b305e5
[  461.691785][ T9709] F2FS-fs (loop2): f2fs_recover_fsync_data: recovery fsync data, check_only: 0
[  461.708459][ T9709] F2FS-fs (loop2): Try to recover 1th superblock, ret: 0
[  461.712117][ T9709] F2FS-fs (loop2): Mounted with checkpoint version = 48b305e5
[  461.743002][ T6083] CPU: 0 UID: 0 PID: 6083 Comm: syz-executor Not tainted syzkaller #0 PREEMPT(full) 
[  461.743029][ T6083] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
[  461.743038][ T6083] Call Trace:
[  461.743046][ T6083]  <TASK>
[  461.743084][ T6083]  dump_stack_lvl+0xe8/0x150
[  461.743116][ T6083]  f2fs_stop_checkpoint+0x3f6/0x5d0
[  461.743141][ T6083]  f2fs_write_end_io+0x124b/0x1710
[  461.743181][ T6083]  __submit_merged_bio+0x258/0x6a0
[  461.743199][ T6083]  ? rcu_is_watching+0x15/0xb0
[  461.743225][ T6083]  __submit_merged_write_cond+0x3c9/0x4e0
[  461.743264][ T6083]  ? __pfx___submit_merged_write_cond+0x10/0x10
[  461.743293][ T6083]  f2fs_write_data_pages+0x2a27/0x36f0
[  461.743310][ T6083]  ? __lock_acquire+0x683/0x2cf0
[  461.743353][ T6083]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  461.743405][ T6083]  ? __pfx_hlock_conflict+0x10/0x10
[  461.743418][ T6083]  ? __bfs+0x153/0x290
[  461.743435][ T6083]  ? __pfx_hlock_conflict+0x10/0x10
[  461.743462][ T6083]  ? lockdep_unlock+0x5d/0xd0
[  461.743482][ T6083]  ? __lock_acquire+0x13e8/0x2cf0
[  461.743518][ T6083]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  461.743539][ T6083]  do_writepages+0x338/0x560
[  461.743567][ T6083]  ? do_raw_spin_unlock+0x4d/0x210
[  461.743594][ T6083]  filemap_fdatawrite+0x1e9/0x2f0
[  461.743644][ T6083]  ? __pfx_filemap_fdatawrite+0x10/0x10
[  461.743702][ T6083]  ? do_raw_spin_unlock+0x4d/0x210
[  461.743720][ T6083]  f2fs_sync_dirty_inodes+0x30e/0x830
[  461.743752][ T6083]  f2fs_write_checkpoint+0xa3d/0x2710
[  461.743797][ T6083]  ? __pfx_f2fs_write_checkpoint+0x10/0x10
[  461.743855][ T6083]  kill_f2fs_super+0x2dd/0x700
[  461.743883][ T6083]  ? __pfx_kill_f2fs_super+0x10/0x10
[  461.743912][ T6083]  ? call_rcu+0x64b/0x8b0
[  461.743925][ T6083]  ? lockdep_hardirqs_on+0x7a/0x110
[  461.743952][ T6083]  deactivate_locked_super+0xbc/0x110
[  461.743975][ T6083]  cleanup_mnt+0x3d3/0x460
[  461.743994][ T6083]  task_work_run+0x1d9/0x270
[  461.744019][ T6083]  ? __pfx_task_work_run+0x10/0x10
[  461.744047][ T6083]  exit_to_user_mode_loop+0x1fa/0x730
[  461.744096][ T6083]  ? rcu_is_watching+0x15/0xb0
[  461.744117][ T6083]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  461.744133][ T6083]  do_syscall_64+0x353/0x580
[  461.744150][ T6083]  ? trace_irq_disable+0x3b/0x140
[  461.744172][ T6083]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  461.744187][ T6083] RIP: 0033:0x7fe575f9f257
[  461.744203][ T6083] 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
[  461.744216][ T6083] RSP: 002b:00007ffcf34b6a68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
[  461.744232][ T6083] RAX: 0000000000000000 RBX: 00007fe57603445c RCX: 00007fe575f9f257
[  461.744242][ T6083] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffcf34b6b20
[  461.744251][ T6083] RBP: 00007ffcf34b6b20 R08: 00007ffcf34b7b20 R09: 00000000ffffffff
[  461.744261][ T6083] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffcf34b7bb0
[  461.744269][ T6083] R13: 00007fe57603445c R14: 0000000000070aff R15: 00007ffcf34b7bf0
[  461.744293][ T6083]  </TASK>
[  461.746289][ T6083] F2FS-fs (loop1): Stopped filesystem due to reason: 3
[  461.875115][ T6089] CPU: 1 UID: 0 PID: 6089 Comm: syz-executor Not tainted syzkaller #0 PREEMPT(full) 
[  461.875132][ T6089] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
[  461.875138][ T6089] Call Trace:
[  461.875143][ T6089]  <TASK>
[  461.875148][ T6089]  dump_stack_lvl+0xe8/0x150
[  461.875168][ T6089]  f2fs_stop_checkpoint+0x3f6/0x5d0
[  461.875184][ T6089]  f2fs_write_end_io+0x124b/0x1710
[  461.875207][ T6089]  __submit_merged_bio+0x258/0x6a0
[  461.875217][ T6089]  ? rcu_is_watching+0x15/0xb0
[  461.875234][ T6089]  __submit_merged_write_cond+0x3c9/0x4e0
[  461.875249][ T6089]  ? __pfx___submit_merged_write_cond+0x10/0x10
[  461.875278][ T6089]  f2fs_write_data_pages+0x2a27/0x36f0
[  461.875290][ T6089]  ? __lock_acquire+0x683/0x2cf0
[  461.875316][ T6089]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  461.875346][ T6089]  ? __pfx_hlock_conflict+0x10/0x10
[  461.875353][ T6089]  ? __bfs+0x153/0x290
[  461.875363][ T6089]  ? __pfx_hlock_conflict+0x10/0x10
[  461.875378][ T6089]  ? lockdep_unlock+0x5d/0xd0
[  461.875407][ T6089]  ? __lock_acquire+0x13e8/0x2cf0
[  461.875433][ T6089]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  461.875445][ T6089]  do_writepages+0x338/0x560
[  461.875463][ T6089]  ? do_raw_spin_unlock+0x4d/0x210
[  461.875474][ T6089]  filemap_fdatawrite+0x1e9/0x2f0
[  461.875487][ T6089]  ? __hrtimer_rearm_deferred+0x99/0x420
[  461.875497][ T6089]  ? __pfx_filemap_fdatawrite+0x10/0x10
[  461.875524][ T6089]  ? preempt_schedule_common+0x82/0xd0
[  461.875536][ T6089]  ? preempt_schedule_thunk+0x16/0x40
[  461.875548][ T6089]  f2fs_sync_dirty_inodes+0x30e/0x830
[  461.875572][ T6089]  f2fs_write_checkpoint+0xa3d/0x2710
[  461.875598][ T6089]  ? __pfx_f2fs_write_checkpoint+0x10/0x10
[  461.875632][ T6089]  kill_f2fs_super+0x2dd/0x700
[  461.875648][ T6089]  ? __pfx_kill_f2fs_super+0x10/0x10
[  461.875665][ T6089]  ? call_rcu+0x64b/0x8b0
[  461.875673][ T6089]  ? lockdep_hardirqs_on+0x7a/0x110
[  461.875690][ T6089]  deactivate_locked_super+0xbc/0x110
[  461.875704][ T6089]  cleanup_mnt+0x3d3/0x460
[  461.875716][ T6089]  task_work_run+0x1d9/0x270
[  461.875732][ T6089]  ? __pfx_task_work_run+0x10/0x10
[  461.875749][ T6089]  exit_to_user_mode_loop+0x1fa/0x730
[  461.875761][ T6089]  ? rcu_is_watching+0x15/0xb0
[  461.875775][ T6089]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  461.875785][ T6089]  do_syscall_64+0x353/0x580
[  461.875795][ T6089]  ? trace_irq_disable+0x3b/0x140
[  461.875811][ T6089]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  461.875819][ T6089] RIP: 0033:0x7f59c919f257
[  461.875829][ T6089] 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
[  461.875837][ T6089] RSP: 002b:00007ffd0e705d98 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
[  461.875847][ T6089] RAX: 0000000000000000 RBX: 00007f59c923445c RCX: 00007f59c919f257
[  461.875853][ T6089] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffd0e705e50
[  461.875858][ T6089] RBP: 00007ffd0e705e50 R08: 00007ffd0e706e50 R09: 00000000ffffffff
[  461.875864][ T6089] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffd0e706ee0
[  461.875873][ T6089] R13: 00007f59c923445c R14: 0000000000070b92 R15: 00007ffd0e706f20
[  461.875887][ T6089]  </TASK>
[  461.875927][ T6089] F2FS-fs (loop2): Stopped filesystem due to reason: 3
[  462.236002][ T9717] loop0: detected capacity change from 0 to 40427
[  462.253874][ T9717] F2FS-fs (loop0): Small segment_count (9 < 1 * 24)
[  462.259754][ T9717] F2FS-fs (loop0): Can't find valid F2FS filesystem in 1th superblock
[  462.354398][ T9717] F2FS-fs (loop0): f2fs_recover_fsync_data: recovery fsync data, check_only: 0
[  462.374821][ T9717] F2FS-fs (loop0): Try to recover 1th superblock, ret: 0
[  462.380919][ T9717] F2FS-fs (loop0): Mounted with checkpoint version = 48b305e5
[  462.409147][ T9717] bio_check_eod: 34 callbacks suppressed
[  462.409165][ T9717] syz.0.863: attempt to access beyond end of device
[  462.409165][ T9717] loop0: rw=2049, sector=53248, nr_sectors = 976 limit=40427
[  462.428627][ T9717] syz.0.863: attempt to access beyond end of device
[  462.428627][ T9717] loop0: rw=8423425, sector=54224, nr_sectors = 8 limit=40427
[  462.453142][ T6081] syz-executor: attempt to access beyond end of device
[  462.453142][ T6081] loop0: rw=2049, sector=45096, nr_sectors = 8 limit=40427
[  462.472479][ T6081] CPU: 0 UID: 0 PID: 6081 Comm: syz-executor Not tainted syzkaller #0 PREEMPT(full) 
[  462.472496][ T6081] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
[  462.472503][ T6081] Call Trace:
[  462.472507][ T6081]  <TASK>
[  462.472512][ T6081]  dump_stack_lvl+0xe8/0x150
[  462.472531][ T6081]  f2fs_stop_checkpoint+0x3f6/0x5d0
[  462.472547][ T6081]  f2fs_write_end_io+0x124b/0x1710
[  462.472570][ T6081]  __submit_merged_bio+0x258/0x6a0
[  462.472580][ T6081]  ? rcu_is_watching+0x15/0xb0
[  462.472597][ T6081]  __submit_merged_write_cond+0x3c9/0x4e0
[  462.472612][ T6081]  ? __pfx___submit_merged_write_cond+0x10/0x10
[  462.472632][ T6081]  f2fs_write_data_pages+0x2a27/0x36f0
[  462.472643][ T6081]  ? __lock_acquire+0x683/0x2cf0
[  462.472669][ T6081]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  462.472700][ T6081]  ? __pfx_hlock_conflict+0x10/0x10
[  462.472707][ T6081]  ? __bfs+0x153/0x290
[  462.472717][ T6081]  ? __pfx_hlock_conflict+0x10/0x10
[  462.472732][ T6081]  ? lockdep_unlock+0x5d/0xd0
[  462.472742][ T6081]  ? __lock_acquire+0x13e8/0x2cf0
[  462.472763][ T6081]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  462.472775][ T6081]  do_writepages+0x338/0x560
[  462.472793][ T6081]  ? do_raw_spin_unlock+0x4d/0x210
[  462.472804][ T6081]  filemap_fdatawrite+0x1e9/0x2f0
[  462.472818][ T6081]  ? __pfx_filemap_fdatawrite+0x10/0x10
[  462.472848][ T6081]  ? do_raw_spin_unlock+0x4d/0x210
[  462.472858][ T6081]  f2fs_sync_dirty_inodes+0x30e/0x830
[  462.472877][ T6081]  f2fs_write_checkpoint+0xa3d/0x2710
[  462.472903][ T6081]  ? __pfx_f2fs_write_checkpoint+0x10/0x10
[  462.472937][ T6081]  kill_f2fs_super+0x2dd/0x700
[  462.472962][ T6081]  ? __pfx_kill_f2fs_super+0x10/0x10
[  462.472978][ T6081]  ? call_rcu+0x64b/0x8b0
[  462.472986][ T6081]  ? lockdep_hardirqs_on+0x7a/0x110
[  462.473036][ T6081]  deactivate_locked_super+0xbc/0x110
[  462.473068][ T6081]  cleanup_mnt+0x3d3/0x460
[  462.473083][ T6081]  task_work_run+0x1d9/0x270
[  462.473098][ T6081]  ? __pfx_task_work_run+0x10/0x10
[  462.473115][ T6081]  exit_to_user_mode_loop+0x1fa/0x730
[  462.473127][ T6081]  ? rcu_is_watching+0x15/0xb0
[  462.473140][ T6081]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  462.473150][ T6081]  do_syscall_64+0x353/0x580
[  462.473160][ T6081]  ? trace_irq_disable+0x3b/0x140
[  462.473175][ T6081]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  462.473183][ T6081] RIP: 0033:0x7f534ad9f257
[  462.473194][ T6081] 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
[  462.473202][ T6081] RSP: 002b:00007ffe1190c078 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
[  462.473212][ T6081] RAX: 0000000000000000 RBX: 00007f534ae3445c RCX: 00007f534ad9f257
[  462.473218][ T6081] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffe1190c130
[  462.473223][ T6081] RBP: 00007ffe1190c130 R08: 00007ffe1190d130 R09: 00000000ffffffff
[  462.473229][ T6081] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffe1190d1c0
[  462.473235][ T6081] R13: 00007f534ae3445c R14: 0000000000070dc8 R15: 00007ffe1190d200
[  462.473248][ T6081]  </TASK>
[  462.473288][ T6081] F2FS-fs (loop0): Stopped filesystem due to reason: 3
[  462.605537][ T9719] F2FS-fs (loop1): Small segment_count (9 < 1 * 24)
[  462.612138][ T9719] F2FS-fs (loop1): Can't find valid F2FS filesystem in 1th superblock
[  462.750672][ T9723] F2FS-fs (loop2): Small segment_count (9 < 1 * 24)
[  462.763972][ T9723] F2FS-fs (loop2): Can't find valid F2FS filesystem in 1th superblock
[  462.782404][ T9719] F2FS-fs (loop1): f2fs_recover_fsync_data: recovery fsync data, check_only: 0
[  462.792118][ T9719] F2FS-fs (loop1): Try to recover 1th superblock, ret: 0
[  462.797095][ T9719] F2FS-fs (loop1): Mounted with checkpoint version = 48b305e5
[  462.823706][ T9719] syz.1.864: attempt to access beyond end of device
[  462.823706][ T9719] loop1: rw=2049, sector=53248, nr_sectors = 976 limit=40427
[  462.830321][ T9719] syz.1.864: attempt to access beyond end of device
[  462.830321][ T9719] loop1: rw=8423425, sector=54224, nr_sectors = 8 limit=40427
[  462.851461][ T6083] syz-executor: attempt to access beyond end of device
[  462.851461][ T6083] loop1: rw=2049, sector=45096, nr_sectors = 8 limit=40427
[  462.853161][ T9723] F2FS-fs (loop2): f2fs_recover_fsync_data: recovery fsync data, check_only: 0
[  462.867913][ T9723] F2FS-fs (loop2): Try to recover 1th superblock, ret: 0
[  462.872550][ T9723] F2FS-fs (loop2): Mounted with checkpoint version = 48b305e5
[  462.882947][ T6083] CPU: 0 UID: 0 PID: 6083 Comm: syz-executor Not tainted syzkaller #0 PREEMPT(full) 
[  462.883008][ T6083] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
[  462.883020][ T6083] Call Trace:
[  462.883027][ T6083]  <TASK>
[  462.883035][ T6083]  dump_stack_lvl+0xe8/0x150
[  462.883063][ T6083]  f2fs_stop_checkpoint+0x3f6/0x5d0
[  462.883088][ T6083]  f2fs_write_end_io+0x124b/0x1710
[  462.883121][ T6083]  __submit_merged_bio+0x258/0x6a0
[  462.883137][ T6083]  ? rcu_is_watching+0x15/0xb0
[  462.883179][ T6083]  __submit_merged_write_cond+0x3c9/0x4e0
[  462.883201][ T6083]  ? __pfx___submit_merged_write_cond+0x10/0x10
[  462.883235][ T6083]  f2fs_write_data_pages+0x2a27/0x36f0
[  462.883308][ T6083]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  462.883358][ T6083]  ? __pfx_hlock_conflict+0x10/0x10
[  462.883370][ T6083]  ? __bfs+0x153/0x290
[  462.883387][ T6083]  ? __pfx_hlock_conflict+0x10/0x10
[  462.883411][ T6083]  ? lockdep_unlock+0x5d/0xd0
[  462.883425][ T6083]  ? __lock_acquire+0x13e8/0x2cf0
[  462.883460][ T6083]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  462.883486][ T6083]  do_writepages+0x338/0x560
[  462.883513][ T6083]  ? do_raw_spin_unlock+0x4d/0x210
[  462.883532][ T6083]  filemap_fdatawrite+0x1e9/0x2f0
[  462.883553][ T6083]  ? __pfx_filemap_fdatawrite+0x10/0x10
[  462.883601][ T6083]  ? do_raw_spin_unlock+0x4d/0x210
[  462.883619][ T6083]  f2fs_sync_dirty_inodes+0x30e/0x830
[  462.883650][ T6083]  f2fs_write_checkpoint+0xa3d/0x2710
[  462.883695][ T6083]  ? __pfx_f2fs_write_checkpoint+0x10/0x10
[  462.883752][ T6083]  kill_f2fs_super+0x2dd/0x700
[  462.883782][ T6083]  ? __pfx_kill_f2fs_super+0x10/0x10
[  462.883810][ T6083]  ? call_rcu+0x64b/0x8b0
[  462.883827][ T6083]  ? lockdep_hardirqs_on+0x7a/0x110
[  462.883854][ T6083]  deactivate_locked_super+0xbc/0x110
[  462.883876][ T6083]  cleanup_mnt+0x3d3/0x460
[  462.883896][ T6083]  task_work_run+0x1d9/0x270
[  462.883920][ T6083]  ? __pfx_task_work_run+0x10/0x10
[  462.883946][ T6083]  exit_to_user_mode_loop+0x1fa/0x730
[  462.883964][ T6083]  ? rcu_is_watching+0x15/0xb0
[  462.884017][ T6083]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  462.884033][ T6083]  do_syscall_64+0x353/0x580
[  462.884055][ T6083]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  462.884069][ T6083] RIP: 0033:0x7fe575f9f257
[  462.884084][ T6083] 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
[  462.884096][ T6083] RSP: 002b:00007ffcf34b6a68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
[  462.884113][ T6083] RAX: 0000000000000000 RBX: 00007fe57603445c RCX: 00007fe575f9f257
[  462.884122][ T6083] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffcf34b6b20
[  462.884130][ T6083] RBP: 00007ffcf34b6b20 R08: 00007ffcf34b7b20 R09: 00000000ffffffff
[  462.884140][ T6083] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffcf34b7bb0
[  462.884152][ T6083] R13: 00007fe57603445c R14: 0000000000070f68 R15: 00007ffcf34b7bf0
[  462.884175][ T6083]  </TASK>
[  462.884227][ T6083] F2FS-fs (loop1): Stopped filesystem due to reason: 3
[  462.888426][ T9723] syz.2.865: attempt to access beyond end of device
[  462.888426][ T9723] loop2: rw=2049, sector=53248, nr_sectors = 976 limit=40427
[  462.987103][ T9729] syz.2.865: attempt to access beyond end of device
[  462.987103][ T9729] loop2: rw=8423425, sector=54224, nr_sectors = 8 limit=40427
[  463.063204][ T6089] syz-executor: attempt to access beyond end of device
[  463.063204][ T6089] loop2: rw=2049, sector=45096, nr_sectors = 8 limit=40427
[  463.086165][ T6089] CPU: 0 UID: 0 PID: 6089 Comm: syz-executor Not tainted syzkaller #0 PREEMPT(full) 
[  463.086190][ T6089] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
[  463.086199][ T6089] Call Trace:
[  463.086206][ T6089]  <TASK>
[  463.086213][ T6089]  dump_stack_lvl+0xe8/0x150
[  463.086242][ T6089]  f2fs_stop_checkpoint+0x3f6/0x5d0
[  463.086266][ T6089]  f2fs_write_end_io+0x124b/0x1710
[  463.086304][ T6089]  __submit_merged_bio+0x258/0x6a0
[  463.086321][ T6089]  ? rcu_is_watching+0x15/0xb0
[  463.086348][ T6089]  __submit_merged_write_cond+0x3c9/0x4e0
[  463.086372][ T6089]  ? __pfx___submit_merged_write_cond+0x10/0x10
[  463.086400][ T6089]  f2fs_write_data_pages+0x2a27/0x36f0
[  463.086439][ T6089]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  463.086485][ T6089]  ? __pfx_hlock_conflict+0x10/0x10
[  463.086498][ T6089]  ? __bfs+0x153/0x290
[  463.086523][ T6089]  ? __pfx_hlock_conflict+0x10/0x10
[  463.086549][ T6089]  ? lockdep_unlock+0x5d/0xd0
[  463.086565][ T6089]  ? __lock_acquire+0x13e8/0x2cf0
[  463.086602][ T6089]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  463.086622][ T6089]  do_writepages+0x338/0x560
[  463.086650][ T6089]  ? do_raw_spin_unlock+0x4d/0x210
[  463.086670][ T6089]  filemap_fdatawrite+0x1e9/0x2f0
[  463.086714][ T6089]  ? __pfx_filemap_fdatawrite+0x10/0x10
[  463.086770][ T6089]  ? do_raw_spin_unlock+0x4d/0x210
[  463.086789][ T6089]  f2fs_sync_dirty_inodes+0x30e/0x830
[  463.086822][ T6089]  f2fs_write_checkpoint+0xa3d/0x2710
[  463.086870][ T6089]  ? __pfx_f2fs_write_checkpoint+0x10/0x10
[  463.086933][ T6089]  kill_f2fs_super+0x2dd/0x700
[  463.086991][ T6089]  ? __pfx_kill_f2fs_super+0x10/0x10
[  463.087020][ T6089]  ? call_rcu+0x64b/0x8b0
[  463.087033][ T6089]  ? lockdep_hardirqs_on+0x7a/0x110
[  463.087058][ T6089]  deactivate_locked_super+0xbc/0x110
[  463.087082][ T6089]  cleanup_mnt+0x3d3/0x460
[  463.087102][ T6089]  task_work_run+0x1d9/0x270
[  463.087125][ T6089]  ? __pfx_task_work_run+0x10/0x10
[  463.087163][ T6089]  exit_to_user_mode_loop+0x1fa/0x730
[  463.087182][ T6089]  ? rcu_is_watching+0x15/0xb0
[  463.087203][ T6089]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  463.087229][ T6089]  do_syscall_64+0x353/0x580
[  463.087247][ T6089]  ? trace_irq_disable+0x3b/0x140
[  463.087270][ T6089]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  463.087285][ T6089] RIP: 0033:0x7f59c919f257
[  463.087300][ T6089] 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
[  463.087313][ T6089] RSP: 002b:00007ffd0e705d98 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
[  463.087329][ T6089] RAX: 0000000000000000 RBX: 00007f59c923445c RCX: 00007f59c919f257
[  463.087338][ T6089] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffd0e705e50
[  463.087347][ T6089] RBP: 00007ffd0e705e50 R08: 00007ffd0e706e50 R09: 00000000ffffffff
[  463.087357][ T6089] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffd0e706ee0
[  463.087366][ T6089] R13: 00007f59c923445c R14: 0000000000071038 R15: 00007ffd0e706f20
[  463.087390][ T6089]  </TASK>
[  463.087444][ T6089] F2FS-fs (loop2): Stopped filesystem due to reason: 3
[  463.443394][ T9730] F2FS-fs (loop0): Small segment_count (9 < 1 * 24)
[  463.446287][ T9730] F2FS-fs (loop0): Can't find valid F2FS filesystem in 1th superblock
[  463.535626][ T9730] F2FS-fs (loop0): f2fs_recover_fsync_data: recovery fsync data, check_only: 0
[  463.548661][ T9730] F2FS-fs (loop0): Try to recover 1th superblock, ret: 0
[  463.554105][ T9730] F2FS-fs (loop0): Mounted with checkpoint version = 48b305e5
[  463.566571][   T34] kauditd_printk_skb: 18 callbacks suppressed
[  463.566588][   T34] audit: type=1800 audit(1785657572.645:1698): pid=9730 uid=0 auid=4294967295 ses=4294967295 subj=unconfined op=collect_data cause=failed(directio) comm="syz.0.866" name="file1" dev="loop0" ino=10 res=0 errno=0
[  463.574882][ T9730] syz.0.866: attempt to access beyond end of device
[  463.574882][ T9730] loop0: rw=2049, sector=53248, nr_sectors = 976 limit=40427
[  463.587784][   T34] audit: type=1800 audit(1785657572.645:1699): pid=9730 uid=0 auid=4294967295 ses=4294967295 subj=unconfined op=collect_data cause=failed(directio) comm="syz.0.866" name="file1" dev="loop0" ino=10 res=0 errno=0
[  463.614908][ T6081] CPU: 1 UID: 0 PID: 6081 Comm: syz-executor Not tainted syzkaller #0 PREEMPT(full) 
[  463.614955][ T6081] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
[  463.614964][ T6081] Call Trace:
[  463.614971][ T6081]  <TASK>
[  463.614977][ T6081]  dump_stack_lvl+0xe8/0x150
[  463.615000][ T6081]  f2fs_stop_checkpoint+0x3f6/0x5d0
[  463.615016][ T6081]  f2fs_write_end_io+0x124b/0x1710
[  463.615038][ T6081]  __submit_merged_bio+0x258/0x6a0
[  463.615049][ T6081]  ? rcu_is_watching+0x15/0xb0
[  463.615066][ T6081]  __submit_merged_write_cond+0x3c9/0x4e0
[  463.615080][ T6081]  ? __pfx___submit_merged_write_cond+0x10/0x10
[  463.615100][ T6081]  f2fs_write_data_pages+0x2a27/0x36f0
[  463.615126][ T6081]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  463.615149][ T6081]  ? lockdep_unlock+0x5d/0xd0
[  463.615159][ T6081]  ? __lock_acquire+0x13e8/0x2cf0
[  463.615185][ T6081]  ? do_raw_spin_lock+0x12b/0x2f0
[  463.615195][ T6081]  ? __pfx_hlock_conflict+0x10/0x10
[  463.615202][ T6081]  ? __bfs+0x153/0x290
[  463.615212][ T6081]  ? __pfx_hlock_conflict+0x10/0x10
[  463.615227][ T6081]  ? lockdep_unlock+0x5d/0xd0
[  463.615235][ T6081]  ? __lock_acquire+0x13e8/0x2cf0
[  463.615257][ T6081]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  463.615269][ T6081]  do_writepages+0x338/0x560
[  463.615286][ T6081]  ? do_raw_spin_unlock+0x4d/0x210
[  463.615297][ T6081]  filemap_fdatawrite+0x1e9/0x2f0
[  463.615314][ T6081]  ? __pfx_filemap_fdatawrite+0x10/0x10
[  463.615345][ T6081]  ? do_raw_spin_unlock+0x4d/0x210
[  463.615355][ T6081]  f2fs_sync_dirty_inodes+0x30e/0x830
[  463.615383][ T6081]  f2fs_write_checkpoint+0xa3d/0x2710
[  463.615419][ T6081]  ? __pfx_f2fs_write_checkpoint+0x10/0x10
[  463.615473][ T6081]  kill_f2fs_super+0x2dd/0x700
[  463.615499][ T6081]  ? __pfx_kill_f2fs_super+0x10/0x10
[  463.615522][ T6081]  ? call_rcu+0x64b/0x8b0
[  463.615530][ T6081]  ? lockdep_hardirqs_on+0x7a/0x110
[  463.615548][ T6081]  deactivate_locked_super+0xbc/0x110
[  463.615562][ T6081]  cleanup_mnt+0x3d3/0x460
[  463.615579][ T6081]  task_work_run+0x1d9/0x270
[  463.615595][ T6081]  ? __pfx_task_work_run+0x10/0x10
[  463.615612][ T6081]  exit_to_user_mode_loop+0x1fa/0x730
[  463.615624][ T6081]  ? rcu_is_watching+0x15/0xb0
[  463.615639][ T6081]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  463.615668][ T6081]  do_syscall_64+0x353/0x580
[  463.615678][ T6081]  ? trace_irq_disable+0x3b/0x140
[  463.615693][ T6081]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  463.615701][ T6081] RIP: 0033:0x7f534ad9f257
[  463.615711][ T6081] 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
[  463.615718][ T6081] RSP: 002b:00007ffe1190c078 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
[  463.615728][ T6081] RAX: 0000000000000000 RBX: 00007f534ae3445c RCX: 00007f534ad9f257
[  463.615734][ T6081] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffe1190c130
[  463.615740][ T6081] RBP: 00007ffe1190c130 R08: 00007ffe1190d130 R09: 00000000ffffffff
[  463.615745][ T6081] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffe1190d1c0
[  463.615751][ T6081] R13: 00007f534ae3445c R14: 0000000000071244 R15: 00007ffe1190d200
[  463.615764][ T6081]  </TASK>
[  463.619586][ T6081] F2FS-fs (loop0): Stopped filesystem due to reason: 3
[  463.643855][ T9732] F2FS-fs (loop1): Small segment_count (9 < 1 * 24)
[  463.643879][ T9732] F2FS-fs (loop1): Can't find valid F2FS filesystem in 1th superblock
[  463.868723][ T9732] F2FS-fs (loop1): f2fs_recover_fsync_data: recovery fsync data, check_only: 0
[  463.895472][ T9732] F2FS-fs (loop1): Try to recover 1th superblock, ret: 0
[  463.904331][ T9732] F2FS-fs (loop1): Mounted with checkpoint version = 48b305e5
[  463.916161][   T34] audit: type=1800 audit(1785657572.995:1700): pid=9732 uid=0 auid=4294967295 ses=4294967295 subj=unconfined op=collect_data cause=failed(directio) comm="syz.1.867" name="file1" dev="loop1" ino=10 res=0 errno=0
[  463.936490][   T34] audit: type=1800 audit(1785657572.995:1701): pid=9732 uid=0 auid=4294967295 ses=4294967295 subj=unconfined op=collect_data cause=failed(directio) comm="syz.1.867" name="file1" dev="loop1" ino=10 res=0 errno=0
[  463.963348][ T6083] CPU: 0 UID: 0 PID: 6083 Comm: syz-executor Not tainted syzkaller #0 PREEMPT(full) 
[  463.963375][ T6083] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
[  463.963385][ T6083] Call Trace:
[  463.963393][ T6083]  <TASK>
[  463.963401][ T6083]  dump_stack_lvl+0xe8/0x150
[  463.963443][ T6083]  f2fs_stop_checkpoint+0x3f6/0x5d0
[  463.963470][ T6083]  f2fs_write_end_io+0x124b/0x1710
[  463.963510][ T6083]  __submit_merged_bio+0x258/0x6a0
[  463.963528][ T6083]  ? rcu_is_watching+0x15/0xb0
[  463.963555][ T6083]  __submit_merged_write_cond+0x3c9/0x4e0
[  463.963580][ T6083]  ? __pfx___submit_merged_write_cond+0x10/0x10
[  463.963617][ T6083]  f2fs_write_data_pages+0x2a27/0x36f0
[  463.963637][ T6083]  ? __lock_acquire+0x683/0x2cf0
[  463.963686][ T6083]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  463.963765][ T6083]  ? __pfx_hlock_conflict+0x10/0x10
[  463.963780][ T6083]  ? __bfs+0x153/0x290
[  463.963796][ T6083]  ? __pfx_hlock_conflict+0x10/0x10
[  463.963821][ T6083]  ? lockdep_unlock+0x5d/0xd0
[  463.963834][ T6083]  ? __lock_acquire+0x13e8/0x2cf0
[  463.963871][ T6083]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  463.963892][ T6083]  do_writepages+0x338/0x560
[  463.963948][ T6083]  ? do_raw_spin_unlock+0x4d/0x210
[  463.963965][ T6083]  filemap_fdatawrite+0x1e9/0x2f0
[  463.963985][ T6083]  ? __pfx_filemap_fdatawrite+0x10/0x10
[  463.964030][ T6083]  ? do_raw_spin_unlock+0x4d/0x210
[  463.964046][ T6083]  f2fs_sync_dirty_inodes+0x30e/0x830
[  463.964074][ T6083]  f2fs_write_checkpoint+0xa3d/0x2710
[  463.964112][ T6083]  ? __pfx_f2fs_write_checkpoint+0x10/0x10
[  463.964164][ T6083]  kill_f2fs_super+0x2dd/0x700
[  463.964192][ T6083]  ? __pfx_kill_f2fs_super+0x10/0x10
[  463.964221][ T6083]  ? call_rcu+0x64b/0x8b0
[  463.964235][ T6083]  ? lockdep_hardirqs_on+0x7a/0x110
[  463.964265][ T6083]  deactivate_locked_super+0xbc/0x110
[  463.964286][ T6083]  cleanup_mnt+0x3d3/0x460
[  463.964308][ T6083]  task_work_run+0x1d9/0x270
[  463.964334][ T6083]  ? __pfx_task_work_run+0x10/0x10
[  463.964361][ T6083]  exit_to_user_mode_loop+0x1fa/0x730
[  463.964381][ T6083]  ? rcu_is_watching+0x15/0xb0
[  463.964402][ T6083]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  463.964417][ T6083]  do_syscall_64+0x353/0x580
[  463.964442][ T6083]  ? trace_irq_disable+0x3b/0x140
[  463.964467][ T6083]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  463.964482][ T6083] RIP: 0033:0x7fe575f9f257
[  463.964501][ T6083] 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
[  463.964514][ T6083] RSP: 002b:00007ffcf34b6a68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
[  463.964533][ T6083] RAX: 0000000000000000 RBX: 00007fe57603445c RCX: 00007fe575f9f257
[  463.964542][ T6083] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffcf34b6b20
[  463.964550][ T6083] RBP: 00007ffcf34b6b20 R08: 00007ffcf34b7b20 R09: 00000000ffffffff
[  463.964561][ T6083] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffcf34b7bb0
[  463.964569][ T6083] R13: 00007fe57603445c R14: 00000000000713b5 R15: 00007ffcf34b7bf0
[  463.964592][ T6083]  </TASK>
[  463.966824][ T6083] F2FS-fs (loop1): Stopped filesystem due to reason: 3
[  463.979819][ T9736] set_capacity_and_notify: 4 callbacks suppressed
[  463.979833][ T9736] loop2: detected capacity change from 0 to 40427
[  464.123251][ T9736] F2FS-fs (loop2): Small segment_count (9 < 1 * 24)
[  464.127572][ T9736] F2FS-fs (loop2): Can't find valid F2FS filesystem in 1th superblock
[  464.246017][ T9736] F2FS-fs (loop2): f2fs_recover_fsync_data: recovery fsync data, check_only: 0
[  464.268702][ T9736] F2FS-fs (loop2): Try to recover 1th superblock, ret: 0
[  464.275223][ T9736] F2FS-fs (loop2): Mounted with checkpoint version = 48b305e5
[  464.287961][   T34] audit: type=1800 audit(1785657573.365:1702): pid=9736 uid=0 auid=4294967295 ses=4294967295 subj=unconfined op=collect_data cause=failed(directio) comm="syz.2.868" name="file1" dev="loop2" ino=10 res=0 errno=0
[  464.309465][   T34] audit: type=1800 audit(1785657573.385:1703): pid=9736 uid=0 auid=4294967295 ses=4294967295 subj=unconfined op=collect_data cause=failed(directio) comm="syz.2.868" name="file1" dev="loop2" ino=10 res=0 errno=0
[  464.349446][ T6089] CPU: 1 UID: 0 PID: 6089 Comm: syz-executor Not tainted syzkaller #0 PREEMPT(full) 
[  464.349471][ T6089] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
[  464.349480][ T6089] Call Trace:
[  464.349487][ T6089]  <TASK>
[  464.349494][ T6089]  dump_stack_lvl+0xe8/0x150
[  464.349523][ T6089]  f2fs_stop_checkpoint+0x3f6/0x5d0
[  464.349548][ T6089]  f2fs_write_end_io+0x124b/0x1710
[  464.349588][ T6089]  __submit_merged_bio+0x258/0x6a0
[  464.349606][ T6089]  ? rcu_is_watching+0x15/0xb0
[  464.349635][ T6089]  __submit_merged_write_cond+0x3c9/0x4e0
[  464.349657][ T6089]  ? __pfx___submit_merged_write_cond+0x10/0x10
[  464.349686][ T6089]  f2fs_write_data_pages+0x2a27/0x36f0
[  464.349737][ T6089]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  464.349754][ T6089]  ? __lock_acquire+0x683/0x2cf0
[  464.349780][ T6089]  ? __lock_acquire+0x683/0x2cf0
[  464.349813][ T6089]  ? __pfx_hlock_conflict+0x10/0x10
[  464.349827][ T6089]  ? __bfs+0x153/0x290
[  464.349845][ T6089]  ? __pfx_hlock_conflict+0x10/0x10
[  464.349867][ T6089]  ? lockdep_unlock+0x5d/0xd0
[  464.349914][ T6089]  ? __lock_acquire+0x13e8/0x2cf0
[  464.349947][ T6089]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  464.349965][ T6089]  do_writepages+0x338/0x560
[  464.349990][ T6089]  ? do_raw_spin_unlock+0x4d/0x210
[  464.350008][ T6089]  filemap_fdatawrite+0x1e9/0x2f0
[  464.350030][ T6089]  ? __pfx_filemap_fdatawrite+0x10/0x10
[  464.350076][ T6089]  ? do_raw_spin_unlock+0x4d/0x210
[  464.350093][ T6089]  f2fs_sync_dirty_inodes+0x30e/0x830
[  464.350126][ T6089]  f2fs_write_checkpoint+0xa3d/0x2710
[  464.350169][ T6089]  ? __pfx_f2fs_write_checkpoint+0x10/0x10
[  464.350221][ T6089]  kill_f2fs_super+0x2dd/0x700
[  464.350249][ T6089]  ? __pfx_kill_f2fs_super+0x10/0x10
[  464.350277][ T6089]  ? call_rcu+0x64b/0x8b0
[  464.350289][ T6089]  ? lockdep_hardirqs_on+0x7a/0x110
[  464.350318][ T6089]  deactivate_locked_super+0xbc/0x110
[  464.350339][ T6089]  cleanup_mnt+0x3d3/0x460
[  464.350357][ T6089]  task_work_run+0x1d9/0x270
[  464.350378][ T6089]  ? __pfx_task_work_run+0x10/0x10
[  464.350401][ T6089]  exit_to_user_mode_loop+0x1fa/0x730
[  464.350421][ T6089]  ? rcu_is_watching+0x15/0xb0
[  464.350442][ T6089]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  464.350458][ T6089]  do_syscall_64+0x353/0x580
[  464.350474][ T6089]  ? trace_irq_disable+0x3b/0x140
[  464.350494][ T6089]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  464.350506][ T6089] RIP: 0033:0x7f59c919f257
[  464.350521][ T6089] 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
[  464.350532][ T6089] RSP: 002b:00007ffd0e705d98 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
[  464.350546][ T6089] RAX: 0000000000000000 RBX: 00007f59c923445c RCX: 00007f59c919f257
[  464.350554][ T6089] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffd0e705e50
[  464.350562][ T6089] RBP: 00007ffd0e705e50 R08: 00007ffd0e706e50 R09: 00000000ffffffff
[  464.350593][ T6089] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffd0e706ee0
[  464.350601][ T6089] R13: 00007f59c923445c R14: 0000000000071532 R15: 00007ffd0e706f20
[  464.350622][ T6089]  </TASK>
[  464.350686][ T6089] F2FS-fs (loop2): Stopped filesystem due to reason: 3
[  464.551934][ T9740] loop0: detected capacity change from 0 to 40427
[  464.560579][ T9740] F2FS-fs (loop0): Small segment_count (9 < 1 * 24)
[  464.563489][ T9740] F2FS-fs (loop0): Can't find valid F2FS filesystem in 1th superblock
[  464.661484][ T9740] F2FS-fs (loop0): f2fs_recover_fsync_data: recovery fsync data, check_only: 0
[  464.673396][ T9740] F2FS-fs (loop0): Try to recover 1th superblock, ret: 0
[  464.676401][ T9740] F2FS-fs (loop0): Mounted with checkpoint version = 48b305e5
[  464.684570][   T34] audit: type=1800 audit(1785657573.765:1704): pid=9740 uid=0 auid=4294967295 ses=4294967295 subj=unconfined op=collect_data cause=failed(directio) comm="syz.0.869" name="file1" dev="loop0" ino=10 res=0 errno=0
[  464.704918][ T6081] CPU: 0 UID: 0 PID: 6081 Comm: syz-executor Not tainted syzkaller #0 PREEMPT(full) 
[  464.704948][ T6081] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
[  464.704958][ T6081] Call Trace:
[  464.704967][ T6081]  <TASK>
[  464.705031][ T6081]  dump_stack_lvl+0xe8/0x150
[  464.705060][ T6081]  f2fs_stop_checkpoint+0x3f6/0x5d0
[  464.705097][ T6081]  f2fs_write_end_io+0x124b/0x1710
[  464.705130][ T6081]  __submit_merged_bio+0x258/0x6a0
[  464.705172][ T6081]  ? rcu_is_watching+0x15/0xb0
[  464.705198][ T6081]  __submit_merged_write_cond+0x3c9/0x4e0
[  464.705223][ T6081]  ? __pfx___submit_merged_write_cond+0x10/0x10
[  464.705256][ T6081]  f2fs_write_data_pages+0x2a27/0x36f0
[  464.705297][ T6081]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  464.705341][ T6081]  ? __pfx_hlock_conflict+0x10/0x10
[  464.705352][ T6081]  ? __bfs+0x153/0x290
[  464.705369][ T6081]  ? __pfx_hlock_conflict+0x10/0x10
[  464.705393][ T6081]  ? lockdep_unlock+0x5d/0xd0
[  464.705407][ T6081]  ? __lock_acquire+0x13e8/0x2cf0
[  464.705440][ T6081]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  464.705459][ T6081]  do_writepages+0x338/0x560
[  464.705485][ T6081]  ? do_raw_spin_unlock+0x4d/0x210
[  464.705505][ T6081]  filemap_fdatawrite+0x1e9/0x2f0
[  464.705528][ T6081]  ? __pfx_filemap_fdatawrite+0x10/0x10
[  464.705577][ T6081]  ? do_raw_spin_unlock+0x4d/0x210
[  464.705593][ T6081]  f2fs_sync_dirty_inodes+0x30e/0x830
[  464.705622][ T6081]  f2fs_write_checkpoint+0xa3d/0x2710
[  464.705662][ T6081]  ? __pfx_f2fs_write_checkpoint+0x10/0x10
[  464.705719][ T6081]  kill_f2fs_super+0x2dd/0x700
[  464.705746][ T6081]  ? __pfx_kill_f2fs_super+0x10/0x10
[  464.705774][ T6081]  ? call_rcu+0x64b/0x8b0
[  464.705788][ T6081]  ? lockdep_hardirqs_on+0x7a/0x110
[  464.705824][ T6081]  deactivate_locked_super+0xbc/0x110
[  464.705875][ T6081]  cleanup_mnt+0x3d3/0x460
[  464.705896][ T6081]  task_work_run+0x1d9/0x270
[  464.705918][ T6081]  ? __pfx_task_work_run+0x10/0x10
[  464.705941][ T6081]  exit_to_user_mode_loop+0x1fa/0x730
[  464.705956][ T6081]  ? rcu_is_watching+0x15/0xb0
[  464.705974][ T6081]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  464.705987][ T6081]  do_syscall_64+0x353/0x580
[  464.706003][ T6081]  ? trace_irq_disable+0x3b/0x140
[  464.706024][ T6081]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  464.706037][ T6081] RIP: 0033:0x7f534ad9f257
[  464.706052][ T6081] 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
[  464.706063][ T6081] RSP: 002b:00007ffe1190c078 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
[  464.706079][ T6081] RAX: 0000000000000000 RBX: 00007f534ae3445c RCX: 00007f534ad9f257
[  464.706088][ T6081] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffe1190c130
[  464.706096][ T6081] RBP: 00007ffe1190c130 R08: 00007ffe1190d130 R09: 00000000ffffffff
[  464.706106][ T6081] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffe1190d1c0
[  464.706115][ T6081] R13: 00007f534ae3445c R14: 00000000000716a0 R15: 00007ffe1190d200
[  464.706138][ T6081]  </TASK>
[  464.706189][ T6081] F2FS-fs (loop0): Stopped filesystem due to reason: 3
[  464.729601][   T34] audit: type=1800 audit(1785657573.765:1705): pid=9740 uid=0 auid=4294967295 ses=4294967295 subj=unconfined op=collect_data cause=failed(directio) comm="syz.0.869" name="file1" dev="loop0" ino=10 res=0 errno=0
[  464.986673][ T9744] loop1: detected capacity change from 0 to 40427
[  464.998104][ T9744] F2FS-fs (loop1): Small segment_count (9 < 1 * 24)
[  465.006795][ T9744] F2FS-fs (loop1): Can't find valid F2FS filesystem in 1th superblock
[  465.020934][ T9748] loop2: detected capacity change from 0 to 40427
[  465.037616][ T9748] F2FS-fs (loop2): Small segment_count (9 < 1 * 24)
[  465.055621][ T9748] F2FS-fs (loop2): Can't find valid F2FS filesystem in 1th superblock
[  465.080279][ T9744] F2FS-fs (loop1): f2fs_recover_fsync_data: recovery fsync data, check_only: 0
[  465.097289][ T9744] F2FS-fs (loop1): Try to recover 1th superblock, ret: 0
[  465.105199][ T9748] F2FS-fs (loop2): f2fs_recover_fsync_data: recovery fsync data, check_only: 0
[  465.109791][ T9744] F2FS-fs (loop1): Mounted with checkpoint version = 48b305e5
[  465.113809][ T9748] F2FS-fs (loop2): Try to recover 1th superblock, ret: 0
[  465.116453][   T34] audit: type=1800 audit(1785657574.195:1706): pid=9744 uid=0 auid=4294967295 ses=4294967295 subj=unconfined op=collect_data cause=failed(directio) comm="syz.1.870" name="file1" dev="loop1" ino=10 res=0 errno=0
[  465.123029][ T9748] F2FS-fs (loop2): Mounted with checkpoint version = 48b305e5
[  465.133157][   T34] audit: type=1800 audit(1785657574.195:1707): pid=9744 uid=0 auid=4294967295 ses=4294967295 subj=unconfined op=collect_data cause=failed(directio) comm="syz.1.870" name="file1" dev="loop1" ino=10 res=0 errno=0
[  465.151242][ T6083] CPU: 1 UID: 0 PID: 6083 Comm: syz-executor Not tainted syzkaller #0 PREEMPT(full) 
[  465.151257][ T6083] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
[  465.151263][ T6083] Call Trace:
[  465.151267][ T6083]  <TASK>
[  465.151272][ T6083]  dump_stack_lvl+0xe8/0x150
[  465.151292][ T6083]  f2fs_stop_checkpoint+0x3f6/0x5d0
[  465.151309][ T6083]  f2fs_write_end_io+0x124b/0x1710
[  465.151338][ T6083]  __submit_merged_bio+0x258/0x6a0
[  465.151349][ T6083]  ? rcu_is_watching+0x15/0xb0
[  465.151366][ T6083]  __submit_merged_write_cond+0x3c9/0x4e0
[  465.151381][ T6083]  ? __pfx___submit_merged_write_cond+0x10/0x10
[  465.151407][ T6083]  f2fs_write_data_pages+0x2a27/0x36f0
[  465.151436][ T6083]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  465.151468][ T6083]  ? __pfx_hlock_conflict+0x10/0x10
[  465.151499][ T6083]  ? __bfs+0x153/0x290
[  465.151511][ T6083]  ? __pfx_hlock_conflict+0x10/0x10
[  465.151527][ T6083]  ? lockdep_unlock+0x5d/0xd0
[  465.151537][ T6083]  ? __lock_acquire+0x13e8/0x2cf0
[  465.151560][ T6083]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  465.151572][ T6083]  do_writepages+0x338/0x560
[  465.151591][ T6083]  ? do_raw_spin_unlock+0x4d/0x210
[  465.151603][ T6083]  filemap_fdatawrite+0x1e9/0x2f0
[  465.151617][ T6083]  ? __pfx_filemap_fdatawrite+0x10/0x10
[  465.151649][ T6083]  ? do_raw_spin_unlock+0x4d/0x210
[  465.151660][ T6083]  f2fs_sync_dirty_inodes+0x30e/0x830
[  465.151680][ T6083]  f2fs_write_checkpoint+0xa3d/0x2710
[  465.151707][ T6083]  ? __pfx_f2fs_write_checkpoint+0x10/0x10
[  465.151743][ T6083]  kill_f2fs_super+0x2dd/0x700
[  465.151760][ T6083]  ? __pfx_kill_f2fs_super+0x10/0x10
[  465.151777][ T6083]  ? call_rcu+0x64b/0x8b0
[  465.151789][ T6083]  ? lockdep_hardirqs_on+0x7a/0x110
[  465.151807][ T6083]  deactivate_locked_super+0xbc/0x110
[  465.151850][ T6083]  cleanup_mnt+0x3d3/0x460
[  465.151863][ T6083]  task_work_run+0x1d9/0x270
[  465.151879][ T6083]  ? __pfx_task_work_run+0x10/0x10
[  465.151896][ T6083]  exit_to_user_mode_loop+0x1fa/0x730
[  465.151908][ T6083]  ? rcu_is_watching+0x15/0xb0
[  465.151921][ T6083]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  465.151930][ T6083]  do_syscall_64+0x353/0x580
[  465.151941][ T6083]  ? trace_irq_disable+0x3b/0x140
[  465.151956][ T6083]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  465.151964][ T6083] RIP: 0033:0x7fe575f9f257
[  465.151973][ T6083] 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
[  465.151980][ T6083] RSP: 002b:00007ffcf34b6a68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
[  465.151990][ T6083] RAX: 0000000000000000 RBX: 00007fe57603445c RCX: 00007fe575f9f257
[  465.151996][ T6083] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffcf34b6b20
[  465.152001][ T6083] RBP: 00007ffcf34b6b20 R08: 00007ffcf34b7b20 R09: 00000000ffffffff
[  465.152007][ T6083] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffcf34b7bb0
[  465.152012][ T6083] R13: 00007fe57603445c R14: 0000000000071862 R15: 00007ffcf34b7bf0
[  465.152027][ T6083]  </TASK>
[  465.153213][ T6083] F2FS-fs (loop1): Stopped filesystem due to reason: 3
[  465.191122][ T6089] CPU: 0 UID: 0 PID: 6089 Comm: syz-executor Not tainted syzkaller #0 PREEMPT(full) 
[  465.191150][ T6089] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
[  465.191159][ T6089] Call Trace:
[  465.191166][ T6089]  <TASK>
[  465.191173][ T6089]  dump_stack_lvl+0xe8/0x150
[  465.191200][ T6089]  f2fs_stop_checkpoint+0x3f6/0x5d0
[  465.191223][ T6089]  f2fs_write_end_io+0x124b/0x1710
[  465.191259][ T6089]  __submit_merged_bio+0x258/0x6a0
[  465.191286][ T6089]  ? rcu_is_watching+0x15/0xb0
[  465.191309][ T6089]  __submit_merged_write_cond+0x3c9/0x4e0
[  465.191332][ T6089]  ? __pfx___submit_merged_write_cond+0x10/0x10
[  465.191363][ T6089]  f2fs_write_data_pages+0x2a27/0x36f0
[  465.191405][ T6089]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  465.191429][ T6089]  ? __css_rstat_updated+0x235/0x540
[  465.191462][ T6089]  ? __pfx_hlock_conflict+0x10/0x10
[  465.191474][ T6089]  ? __bfs+0x153/0x290
[  465.191491][ T6089]  ? __pfx_hlock_conflict+0x10/0x10
[  465.191512][ T6089]  ? lockdep_unlock+0x5d/0xd0
[  465.191526][ T6089]  ? __lock_acquire+0x13e8/0x2cf0
[  465.191563][ T6089]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  465.191582][ T6089]  do_writepages+0x338/0x560
[  465.191640][ T6089]  ? do_raw_spin_unlock+0x4d/0x210
[  465.191658][ T6089]  filemap_fdatawrite+0x1e9/0x2f0
[  465.191681][ T6089]  ? __pfx_filemap_fdatawrite+0x10/0x10
[  465.191723][ T6089]  ? do_raw_spin_unlock+0x4d/0x210
[  465.191740][ T6089]  f2fs_sync_dirty_inodes+0x30e/0x830
[  465.191777][ T6089]  f2fs_write_checkpoint+0xa3d/0x2710
[  465.191859][ T6089]  ? __pfx_f2fs_write_checkpoint+0x10/0x10
[  465.191919][ T6089]  kill_f2fs_super+0x2dd/0x700
[  465.191947][ T6089]  ? __pfx_kill_f2fs_super+0x10/0x10
[  465.191976][ T6089]  ? call_rcu+0x64b/0x8b0
[  465.191989][ T6089]  ? lockdep_hardirqs_on+0x7a/0x110
[  465.192018][ T6089]  deactivate_locked_super+0xbc/0x110
[  465.192041][ T6089]  cleanup_mnt+0x3d3/0x460
[  465.192061][ T6089]  task_work_run+0x1d9/0x270
[  465.192085][ T6089]  ? __pfx_task_work_run+0x10/0x10
[  465.192118][ T6089]  exit_to_user_mode_loop+0x1fa/0x730
[  465.192137][ T6089]  ? rcu_is_watching+0x15/0xb0
[  465.192159][ T6089]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  465.192176][ T6089]  do_syscall_64+0x353/0x580
[  465.192192][ T6089]  ? trace_irq_disable+0x3b/0x140
[  465.192220][ T6089]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  465.192234][ T6089] RIP: 0033:0x7f59c919f257
[  465.192250][ T6089] 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
[  465.192263][ T6089] RSP: 002b:00007ffd0e705d98 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
[  465.192293][ T6089] RAX: 0000000000000000 RBX: 00007f59c923445c RCX: 00007f59c919f257
[  465.192303][ T6089] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffd0e705e50
[  465.192312][ T6089] RBP: 00007ffd0e705e50 R08: 00007ffd0e706e50 R09: 00000000ffffffff
[  465.192321][ T6089] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffd0e706ee0
[  465.192330][ T6089] R13: 00007f59c923445c R14: 0000000000071860 R15: 00007ffd0e706f20
[  465.192355][ T6089]  </TASK>
[  465.194185][ T6089] F2FS-fs (loop2): Stopped filesystem due to reason: 3
[  465.360024][ T9754] loop0: detected capacity change from 0 to 40427
[  465.419753][ T9754] F2FS-fs (loop0): Small segment_count (9 < 1 * 24)
[  465.422591][ T9754] F2FS-fs (loop0): Can't find valid F2FS filesystem in 1th superblock
[  465.547431][ T9754] F2FS-fs (loop0): f2fs_recover_fsync_data: recovery fsync data, check_only: 0
[  465.574339][ T9754] F2FS-fs (loop0): Try to recover 1th superblock, ret: 0
[  465.577430][ T9754] F2FS-fs (loop0): Mounted with checkpoint version = 48b305e5
[  465.630219][ T6081] CPU: 1 UID: 0 PID: 6081 Comm: syz-executor Not tainted syzkaller #0 PREEMPT(full) 
[  465.630243][ T6081] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
[  465.630253][ T6081] Call Trace:
[  465.630260][ T6081]  <TASK>
[  465.630268][ T6081]  dump_stack_lvl+0xe8/0x150
[  465.630296][ T6081]  f2fs_stop_checkpoint+0x3f6/0x5d0
[  465.630322][ T6081]  f2fs_write_end_io+0x124b/0x1710
[  465.630359][ T6081]  __submit_merged_bio+0x258/0x6a0
[  465.630376][ T6081]  ? rcu_is_watching+0x15/0xb0
[  465.630402][ T6081]  __submit_merged_write_cond+0x3c9/0x4e0
[  465.630425][ T6081]  ? __pfx___submit_merged_write_cond+0x10/0x10
[  465.630461][ T6081]  f2fs_write_data_pages+0x2a27/0x36f0
[  465.630507][ T6081]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  465.630558][ T6081]  ? __pfx_hlock_conflict+0x10/0x10
[  465.630571][ T6081]  ? __bfs+0x153/0x290
[  465.630584][ T6081]  ? __pfx_hlock_conflict+0x10/0x10
[  465.630606][ T6081]  ? lockdep_unlock+0x5d/0xd0
[  465.630621][ T6081]  ? __lock_acquire+0x13e8/0x2cf0
[  465.630659][ T6081]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  465.630680][ T6081]  do_writepages+0x338/0x560
[  465.630709][ T6081]  ? do_raw_spin_unlock+0x4d/0x210
[  465.630729][ T6081]  filemap_fdatawrite+0x1e9/0x2f0
[  465.630753][ T6081]  ? __pfx_filemap_fdatawrite+0x10/0x10
[  465.630836][ T6081]  ? do_raw_spin_unlock+0x4d/0x210
[  465.630875][ T6081]  f2fs_sync_dirty_inodes+0x30e/0x830
[  465.630910][ T6081]  f2fs_write_checkpoint+0xa3d/0x2710
[  465.630950][ T6081]  ? __pfx_f2fs_write_checkpoint+0x10/0x10
[  465.631012][ T6081]  kill_f2fs_super+0x2dd/0x700
[  465.631046][ T6081]  ? __pfx_kill_f2fs_super+0x10/0x10
[  465.631075][ T6081]  ? call_rcu+0x64b/0x8b0
[  465.631089][ T6081]  ? lockdep_hardirqs_on+0x7a/0x110
[  465.631118][ T6081]  deactivate_locked_super+0xbc/0x110
[  465.631141][ T6081]  cleanup_mnt+0x3d3/0x460
[  465.631161][ T6081]  task_work_run+0x1d9/0x270
[  465.631187][ T6081]  ? __pfx_task_work_run+0x10/0x10
[  465.631215][ T6081]  exit_to_user_mode_loop+0x1fa/0x730
[  465.631234][ T6081]  ? rcu_is_watching+0x15/0xb0
[  465.631249][ T6081]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  465.631265][ T6081]  do_syscall_64+0x353/0x580
[  465.631280][ T6081]  ? trace_irq_disable+0x3b/0x140
[  465.631303][ T6081]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  465.631316][ T6081] RIP: 0033:0x7f534ad9f257
[  465.631329][ T6081] 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
[  465.631341][ T6081] RSP: 002b:00007ffe1190c078 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
[  465.631357][ T6081] RAX: 0000000000000000 RBX: 00007f534ae3445c RCX: 00007f534ad9f257
[  465.631366][ T6081] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffe1190c130
[  465.631373][ T6081] RBP: 00007ffe1190c130 R08: 00007ffe1190d130 R09: 00000000ffffffff
[  465.631382][ T6081] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffe1190d1c0
[  465.631391][ T6081] R13: 00007f534ae3445c R14: 0000000000071a34 R15: 00007ffe1190d200
[  465.631413][ T6081]  </TASK>
[  465.631943][ T6081] F2FS-fs (loop0): Stopped filesystem due to reason: 3

[host] Command execution timed out after 6m0s