e_data_pages+0x2a27/0x36f0
[  437.817220][ T6004]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  437.817244][ T6004]  ? __pfx_hlock_conflict+0x10/0x10
[  437.817251][ T6004]  ? __bfs+0x153/0x290
[  437.817260][ T6004]  ? __pfx_hlock_conflict+0x10/0x10
[  437.817272][ T6004]  ? lockdep_unlock+0x5d/0xd0
[  437.817280][ T6004]  ? __lock_acquire+0x13e8/0x2cf0
[  437.817297][ T6004]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  437.817307][ T6004]  do_writepages+0x338/0x560
[  437.817321][ T6004]  ? do_raw_spin_unlock+0x4d/0x210
[  437.817330][ T6004]  filemap_fdatawrite+0x1e9/0x2f0
[  437.817342][ T6004]  ? __pfx_filemap_fdatawrite+0x10/0x10
[  437.817370][ T6004]  ? do_raw_spin_unlock+0x4d/0x210
[  437.817379][ T6004]  f2fs_sync_dirty_inodes+0x30e/0x830
[  437.817395][ T6004]  f2fs_write_checkpoint+0xa3d/0x2710
[  437.817415][ T6004]  ? __pfx_f2fs_write_checkpoint+0x10/0x10
[  437.817441][ T6004]  kill_f2fs_super+0x2dd/0x700
[  437.817454][ T6004]  ? __pfx_kill_f2fs_super+0x10/0x10
[  437.817467][ T6004]  ? call_rcu+0x64b/0x8b0
[  437.817474][ T6004]  ? lockdep_hardirqs_on+0x7a/0x110
[  437.817488][ T6004]  deactivate_locked_super+0xbc/0x110
[  437.817501][ T6004]  cleanup_mnt+0x3d3/0x460
[  437.817511][ T6004]  task_work_run+0x1d9/0x270
[  437.817524][ T6004]  ? __pfx_task_work_run+0x10/0x10
[  437.817537][ T6004]  exit_to_user_mode_loop+0x1fa/0x730
[  437.817546][ T6004]  ? rcu_is_watching+0x15/0xb0
[  437.817556][ T6004]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  437.817564][ T6004]  do_syscall_64+0x353/0x580
[  437.817573][ T6004]  ? trace_irq_disable+0x3b/0x140
[  437.817585][ T6004]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  437.817592][ T6004] RIP: 0033:0x7f437b79f257
[  437.817602][ T6004] Code: a2 c7 05 9c 44 25 00 00 00 00 00 eb 96 e8 e1 12 00 00 90 31 f6 e9 09 00 00 00 66 0f 1f 84 00 00 00 00 00 b8 a6 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 01 c3 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8
[  437.817609][ T6004] RSP: 002b:00007fff3d965688 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
[  437.817619][ T6004] RAX: 0000000000000000 RBX: 00007f437b83445c RCX: 00007f437b79f257
[  437.817624][ T6004] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007fff3d965740
[  437.817629][ T6004] RBP: 00007fff3d965740 R08: 00007fff3d966740 R09: 00000000ffffffff
[  437.817634][ T6004] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fff3d9667d0
[  437.817639][ T6004] R13: 00007f437b83445c R14: 000000000006adaa R15: 00007fff3d966810
[  437.817649][ T6004]  </TASK>
[  437.817653][ T6004] F2FS-fs (loop0): Stopped filesystem due to reason: 3
[  437.898303][T10053] F2FS-fs (loop1): f2fs_recover_fsync_data: recovery fsync data, check_only: 0
[  437.992528][T10053] F2FS-fs (loop1): Try to recover 1th superblock, ret: 0
[  438.004444][T10053] F2FS-fs (loop1): Mounted with checkpoint version = 48b305e5
[  438.020121][   T33] kauditd_printk_skb: 22 callbacks suppressed
[  438.021778][   T33] audit: type=1800 audit(1785887273.562:1920): pid=10053 uid=0 auid=4294967295 ses=4294967295 subj=unconfined op=collect_data cause=failed(directio) comm="syz.1.975" name="file1" dev="loop1" ino=10 res=0 errno=0
[  438.027315][T10059] loop2: detected capacity change from 0 to 40427
[  438.042372][T10059] F2FS-fs (loop2): Small segment_count (9 < 1 * 24)
[  438.049853][T10059] F2FS-fs (loop2): Can't find valid F2FS filesystem in 1th superblock
[  438.063115][T10053] bio_check_eod: 38 callbacks suppressed
[  438.063128][T10053] syz.1.975: attempt to access beyond end of device
[  438.063128][T10053] loop1: rw=2049, sector=53248, nr_sectors = 976 limit=40427
[  438.077895][   T33] audit: type=1800 audit(1785887273.562:1921): pid=10053 uid=0 auid=4294967295 ses=4294967295 subj=unconfined op=collect_data cause=failed(directio) comm="syz.1.975" name="file1" dev="loop1" ino=10 res=0 errno=0
[  438.087016][T10053] syz.1.975: attempt to access beyond end of device
[  438.087016][T10053] loop1: rw=8423425, sector=54224, nr_sectors = 8 limit=40427
[  438.123651][ T6009] syz-executor: attempt to access beyond end of device
[  438.123651][ T6009] loop1: rw=2049, sector=45096, nr_sectors = 8 limit=40427
[  438.138071][T10059] F2FS-fs (loop2): f2fs_recover_fsync_data: recovery fsync data, check_only: 0
[  438.147283][ T6009] CPU: 0 UID: 0 PID: 6009 Comm: syz-executor Not tainted syzkaller #0 PREEMPT(full) 
[  438.147303][ T6009] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
[  438.147310][ T6009] Call Trace:
[  438.147316][ T6009]  <TASK>
[  438.147322][ T6009]  dump_stack_lvl+0xe8/0x150
[  438.147345][ T6009]  f2fs_stop_checkpoint+0x3f6/0x5d0
[  438.147365][ T6009]  f2fs_write_end_io+0x124b/0x1710
[  438.147395][ T6009]  __submit_merged_bio+0x258/0x6a0
[  438.147410][ T6009]  ? rcu_is_watching+0x15/0xb0
[  438.147431][ T6009]  __submit_merged_write_cond+0x3c9/0x4e0
[  438.147452][ T6009]  ? __pfx___submit_merged_write_cond+0x10/0x10
[  438.147481][ T6009]  f2fs_write_data_pages+0x2a27/0x36f0
[  438.147521][ T6009]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  438.147565][ T6009]  ? __pfx_hlock_conflict+0x10/0x10
[  438.147577][ T6009]  ? __bfs+0x153/0x290
[  438.147591][ T6009]  ? __pfx_hlock_conflict+0x10/0x10
[  438.147614][ T6009]  ? lockdep_unlock+0x5d/0xd0
[  438.147627][ T6009]  ? __lock_acquire+0x13e8/0x2cf0
[  438.147659][ T6009]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  438.147677][ T6009]  do_writepages+0x338/0x560
[  438.147700][ T6009]  ? do_raw_spin_unlock+0x4d/0x210
[  438.147717][ T6009]  filemap_fdatawrite+0x1e9/0x2f0
[  438.147737][ T6009]  ? __pfx_filemap_fdatawrite+0x10/0x10
[  438.147781][ T6009]  ? do_raw_spin_unlock+0x4d/0x210
[  438.147798][ T6009]  f2fs_sync_dirty_inodes+0x30e/0x830
[  438.147825][ T6009]  f2fs_write_checkpoint+0xa3d/0x2710
[  438.147863][ T6009]  ? __pfx_f2fs_write_checkpoint+0x10/0x10
[  438.147915][ T6009]  kill_f2fs_super+0x2dd/0x700
[  438.147938][ T6009]  ? __pfx_kill_f2fs_super+0x10/0x10
[  438.147992][ T6009]  ? call_rcu+0x64b/0x8b0
[  438.148026][ T6009]  ? lockdep_hardirqs_on+0x7a/0x110
[  438.148049][ T6009]  deactivate_locked_super+0xbc/0x110
[  438.148069][ T6009]  cleanup_mnt+0x3d3/0x460
[  438.148086][ T6009]  task_work_run+0x1d9/0x270
[  438.148105][ T6009]  ? __pfx_task_work_run+0x10/0x10
[  438.148129][ T6009]  exit_to_user_mode_loop+0x1fa/0x730
[  438.148144][ T6009]  ? rcu_is_watching+0x15/0xb0
[  438.148162][ T6009]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  438.148175][ T6009]  do_syscall_64+0x353/0x580
[  438.148195][ T6009]  ? trace_irq_disable+0x3b/0x140
[  438.148214][ T6009]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  438.148226][ T6009] RIP: 0033:0x7f8d2739f257
[  438.148239][ T6009] Code: a2 c7 05 9c 44 25 00 00 00 00 00 eb 96 e8 e1 12 00 00 90 31 f6 e9 09 00 00 00 66 0f 1f 84 00 00 00 00 00 b8 a6 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 01 c3 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8
[  438.148251][ T6009] RSP: 002b:00007ffe58d729a8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
[  438.148264][ T6009] RAX: 0000000000000000 RBX: 00007f8d2743445c RCX: 00007f8d2739f257
[  438.148272][ T6009] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffe58d72a60
[  438.148279][ T6009] RBP: 00007ffe58d72a60 R08: 00007ffe58d73a60 R09: 00000000ffffffff
[  438.148286][ T6009] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffe58d73af0
[  438.148294][ T6009] R13: 00007f8d2743445c R14: 000000000006aede R15: 00007ffe58d73b30
[  438.148312][ T6009]  </TASK>
[  438.148695][ T6009] F2FS-fs (loop1): Stopped filesystem due to reason: 3
[  438.189072][T10059] F2FS-fs (loop2): Try to recover 1th superblock, ret: 0
[  438.294532][T10059] F2FS-fs (loop2): Mounted with checkpoint version = 48b305e5
[  438.299523][   T33] audit: type=1800 audit(1785887273.842:1922): pid=10059 uid=0 auid=4294967295 ses=4294967295 subj=unconfined op=collect_data cause=failed(directio) comm="syz.2.977" name="file1" dev="loop2" ino=10 res=0 errno=0
[  438.310203][   T33] audit: type=1800 audit(1785887273.842:1923): pid=10059 uid=0 auid=4294967295 ses=4294967295 subj=unconfined op=collect_data cause=failed(directio) comm="syz.2.977" name="file1" dev="loop2" ino=10 res=0 errno=0
[  438.316530][T10059] syz.2.977: attempt to access beyond end of device
[  438.316530][T10059] loop2: rw=2049, sector=53248, nr_sectors = 976 limit=40427
[  438.337104][T10059] syz.2.977: attempt to access beyond end of device
[  438.337104][T10059] loop2: rw=8423425, sector=54224, nr_sectors = 8 limit=40427
[  438.368267][ T6006] syz-executor: attempt to access beyond end of device
[  438.368267][ T6006] loop2: rw=2049, sector=45096, nr_sectors = 8 limit=40427
[  438.400899][ T6006] CPU: 0 UID: 0 PID: 6006 Comm: syz-executor Not tainted syzkaller #0 PREEMPT(full) 
[  438.400918][ T6006] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
[  438.400925][ T6006] Call Trace:
[  438.400931][ T6006]  <TASK>
[  438.400936][ T6006]  dump_stack_lvl+0xe8/0x150
[  438.400982][ T6006]  f2fs_stop_checkpoint+0x3f6/0x5d0
[  438.401001][ T6006]  f2fs_write_end_io+0x124b/0x1710
[  438.401027][ T6006]  __submit_merged_bio+0x258/0x6a0
[  438.401042][ T6006]  ? rcu_is_watching+0x15/0xb0
[  438.401062][ T6006]  __submit_merged_write_cond+0x3c9/0x4e0
[  438.401081][ T6006]  ? __pfx___submit_merged_write_cond+0x10/0x10
[  438.401108][ T6006]  f2fs_write_data_pages+0x2a27/0x36f0
[  438.401126][ T6006]  ? __lock_acquire+0x683/0x2cf0
[  438.401159][ T6006]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  438.401207][ T6006]  ? __pfx_hlock_conflict+0x10/0x10
[  438.401218][ T6006]  ? __bfs+0x153/0x290
[  438.401230][ T6006]  ? __pfx_hlock_conflict+0x10/0x10
[  438.401251][ T6006]  ? lockdep_unlock+0x5d/0xd0
[  438.401264][ T6006]  ? __lock_acquire+0x13e8/0x2cf0
[  438.401291][ T6006]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  438.401309][ T6006]  do_writepages+0x338/0x560
[  438.401330][ T6006]  ? do_raw_spin_unlock+0x4d/0x210
[  438.401346][ T6006]  filemap_fdatawrite+0x1e9/0x2f0
[  438.401363][ T6006]  ? __pfx_filemap_fdatawrite+0x10/0x10
[  438.401404][ T6006]  ? do_raw_spin_unlock+0x4d/0x210
[  438.401419][ T6006]  f2fs_sync_dirty_inodes+0x30e/0x830
[  438.401445][ T6006]  f2fs_write_checkpoint+0xa3d/0x2710
[  438.401479][ T6006]  ? __pfx_f2fs_write_checkpoint+0x10/0x10
[  438.401526][ T6006]  kill_f2fs_super+0x2dd/0x700
[  438.401567][ T6006]  ? __pfx_kill_f2fs_super+0x10/0x10
[  438.401590][ T6006]  ? call_rcu+0x64b/0x8b0
[  438.401600][ T6006]  ? lockdep_hardirqs_on+0x7a/0x110
[  438.401622][ T6006]  deactivate_locked_super+0xbc/0x110
[  438.401639][ T6006]  cleanup_mnt+0x3d3/0x460
[  438.401656][ T6006]  task_work_run+0x1d9/0x270
[  438.401674][ T6006]  ? __pfx_task_work_run+0x10/0x10
[  438.401696][ T6006]  exit_to_user_mode_loop+0x1fa/0x730
[  438.401710][ T6006]  ? rcu_is_watching+0x15/0xb0
[  438.401726][ T6006]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  438.401739][ T6006]  do_syscall_64+0x353/0x580
[  438.401752][ T6006]  ? trace_irq_disable+0x3b/0x140
[  438.401770][ T6006]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  438.401781][ T6006] RIP: 0033:0x7f6fa019f257
[  438.401793][ T6006] Code: a2 c7 05 9c 44 25 00 00 00 00 00 eb 96 e8 e1 12 00 00 90 31 f6 e9 09 00 00 00 66 0f 1f 84 00 00 00 00 00 b8 a6 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 01 c3 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8
[  438.401802][ T6006] RSP: 002b:00007ffe2d65f5b8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
[  438.401817][ T6006] RAX: 0000000000000000 RBX: 00007f6fa023445c RCX: 00007f6fa019f257
[  438.401824][ T6006] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffe2d65f670
[  438.401830][ T6006] RBP: 00007ffe2d65f670 R08: 00007ffe2d660670 R09: 00000000ffffffff
[  438.401839][ T6006] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffe2d660700
[  438.401846][ T6006] R13: 00007f6fa023445c R14: 000000000006afd0 R15: 00007ffe2d660740
[  438.401863][ T6006]  </TASK>
[  438.403437][ T6006] F2FS-fs (loop2): Stopped filesystem due to reason: 3
[  438.583398][T10065] loop0: detected capacity change from 0 to 40427
[  438.593469][T10065] F2FS-fs (loop0): Small segment_count (9 < 1 * 24)
[  438.598717][T10065] F2FS-fs (loop0): Can't find valid F2FS filesystem in 1th superblock
[  438.685930][T10065] F2FS-fs (loop0): f2fs_recover_fsync_data: recovery fsync data, check_only: 0
[  438.692442][T10065] F2FS-fs (loop0): Try to recover 1th superblock, ret: 0
[  438.695623][T10065] F2FS-fs (loop0): Mounted with checkpoint version = 48b305e5
[  438.699919][   T33] audit: type=1800 audit(1785887274.242:1924): pid=10065 uid=0 auid=4294967295 ses=4294967295 subj=unconfined op=collect_data cause=failed(directio) comm="syz.0.978" name="file1" dev="loop0" ino=10 res=0 errno=0
[  438.711626][   T33] audit: type=1800 audit(1785887274.252:1925): pid=10065 uid=0 auid=4294967295 ses=4294967295 subj=unconfined op=collect_data cause=failed(directio) comm="syz.0.978" name="file1" dev="loop0" ino=10 res=0 errno=0
[  438.724301][T10065] syz.0.978: attempt to access beyond end of device
[  438.724301][T10065] loop0: rw=2049, sector=53248, nr_sectors = 976 limit=40427
[  438.730127][T10065] syz.0.978: attempt to access beyond end of device
[  438.730127][T10065] loop0: rw=8423425, sector=54224, nr_sectors = 8 limit=40427
[  438.745074][ T6004] syz-executor: attempt to access beyond end of device
[  438.745074][ T6004] loop0: rw=2049, sector=45096, nr_sectors = 8 limit=40427
[  438.752272][ T6004] CPU: 1 UID: 0 PID: 6004 Comm: syz-executor Not tainted syzkaller #0 PREEMPT(full) 
[  438.752291][ T6004] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
[  438.752298][ T6004] Call Trace:
[  438.752304][ T6004]  <TASK>
[  438.752310][ T6004]  dump_stack_lvl+0xe8/0x150
[  438.752333][ T6004]  f2fs_stop_checkpoint+0x3f6/0x5d0
[  438.752349][ T6004]  f2fs_write_end_io+0x124b/0x1710
[  438.752387][ T6004]  __submit_merged_bio+0x258/0x6a0
[  438.752401][ T6004]  ? rcu_is_watching+0x15/0xb0
[  438.752422][ T6004]  __submit_merged_write_cond+0x3c9/0x4e0
[  438.752437][ T6004]  ? __pfx___submit_merged_write_cond+0x10/0x10
[  438.752467][ T6004]  f2fs_write_data_pages+0x2a27/0x36f0
[  438.752507][ T6004]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  438.752553][ T6004]  ? __pfx_hlock_conflict+0x10/0x10
[  438.752562][ T6004]  ? __bfs+0x153/0x290
[  438.752572][ T6004]  ? __pfx_hlock_conflict+0x10/0x10
[  438.752594][ T6004]  ? lockdep_unlock+0x5d/0xd0
[  438.752606][ T6004]  ? __lock_acquire+0x13e8/0x2cf0
[  438.752638][ T6004]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  438.752654][ T6004]  do_writepages+0x338/0x560
[  438.752677][ T6004]  ? do_raw_spin_unlock+0x4d/0x210
[  438.752688][ T6004]  filemap_fdatawrite+0x1e9/0x2f0
[  438.752704][ T6004]  ? __pfx_filemap_fdatawrite+0x10/0x10
[  438.752742][ T6004]  ? do_raw_spin_unlock+0x4d/0x210
[  438.752757][ T6004]  f2fs_sync_dirty_inodes+0x30e/0x830
[  438.752783][ T6004]  f2fs_write_checkpoint+0xa3d/0x2710
[  438.752821][ T6004]  ? __pfx_f2fs_write_checkpoint+0x10/0x10
[  438.752850][ T6004]  kill_f2fs_super+0x2dd/0x700
[  438.752864][ T6004]  ? __pfx_kill_f2fs_super+0x10/0x10
[  438.752880][ T6004]  ? call_rcu+0x64b/0x8b0
[  438.752907][ T6004]  ? lockdep_hardirqs_on+0x7a/0x110
[  438.752924][ T6004]  deactivate_locked_super+0xbc/0x110
[  438.752936][ T6004]  cleanup_mnt+0x3d3/0x460
[  438.752946][ T6004]  task_work_run+0x1d9/0x270
[  438.752988][ T6004]  ? __pfx_task_work_run+0x10/0x10
[  438.753012][ T6004]  exit_to_user_mode_loop+0x1fa/0x730
[  438.753026][ T6004]  ? rcu_is_watching+0x15/0xb0
[  438.753043][ T6004]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  438.753054][ T6004]  do_syscall_64+0x353/0x580
[  438.753066][ T6004]  ? trace_irq_disable+0x3b/0x140
[  438.753084][ T6004]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  438.753095][ T6004] RIP: 0033:0x7f437b79f257
[  438.753109][ T6004] Code: a2 c7 05 9c 44 25 00 00 00 00 00 eb 96 e8 e1 12 00 00 90 31 f6 e9 09 00 00 00 66 0f 1f 84 00 00 00 00 00 b8 a6 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 01 c3 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8
[  438.753118][ T6004] RSP: 002b:00007fff3d965688 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
[  438.753132][ T6004] RAX: 0000000000000000 RBX: 00007f437b83445c RCX: 00007f437b79f257
[  438.753138][ T6004] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007fff3d965740
[  438.753142][ T6004] RBP: 00007fff3d965740 R08: 00007fff3d966740 R09: 00000000ffffffff
[  438.753150][ T6004] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fff3d9667d0
[  438.753157][ T6004] R13: 00007f437b83445c R14: 000000000006b149 R15: 00007fff3d966810
[  438.753177][ T6004]  </TASK>
[  438.753936][ T6004] F2FS-fs (loop0): Stopped filesystem due to reason: 3
[  438.893368][T10067] loop1: detected capacity change from 0 to 40427
[  438.910245][T10067] F2FS-fs (loop1): Small segment_count (9 < 1 * 24)
[  438.920127][T10067] F2FS-fs (loop1): Can't find valid F2FS filesystem in 1th superblock
[  439.040458][T10071] loop2: detected capacity change from 0 to 40427
[  439.045427][T10071] F2FS-fs (loop2): Small segment_count (9 < 1 * 24)
[  439.059151][T10071] F2FS-fs (loop2): Can't find valid F2FS filesystem in 1th superblock
[  439.088026][T10067] F2FS-fs (loop1): f2fs_recover_fsync_data: recovery fsync data, check_only: 0
[  439.097245][T10067] F2FS-fs (loop1): Try to recover 1th superblock, ret: 0
[  439.100129][T10067] F2FS-fs (loop1): Mounted with checkpoint version = 48b305e5
[  439.107660][   T33] audit: type=1800 audit(1785887274.652:1926): pid=10067 uid=0 auid=4294967295 ses=4294967295 subj=unconfined op=collect_data cause=failed(directio) comm="syz.1.979" name="file1" dev="loop1" ino=10 res=0 errno=0
[  439.125858][   T33] audit: type=1800 audit(1785887274.662:1927): pid=10067 uid=0 auid=4294967295 ses=4294967295 subj=unconfined op=collect_data cause=failed(directio) comm="syz.1.979" name="file1" dev="loop1" ino=10 res=0 errno=0
[  439.134755][T10067] syz.1.979: attempt to access beyond end of device
[  439.134755][T10067] loop1: rw=2049, sector=53248, nr_sectors = 976 limit=40427
[  439.138859][T10071] F2FS-fs (loop2): f2fs_recover_fsync_data: recovery fsync data, check_only: 0
[  439.145792][T10071] F2FS-fs (loop2): Try to recover 1th superblock, ret: 0
[  439.149111][T10071] F2FS-fs (loop2): Mounted with checkpoint version = 48b305e5
[  439.153605][   T33] audit: type=1800 audit(1785887274.692:1928): pid=10071 uid=0 auid=4294967295 ses=4294967295 subj=unconfined op=collect_data cause=failed(directio) comm="syz.2.980" name="file1" dev="loop2" ino=10 res=0 errno=0
[  439.161859][   T33] audit: type=1800 audit(1785887274.702:1929): pid=10071 uid=0 auid=4294967295 ses=4294967295 subj=unconfined op=collect_data cause=failed(directio) comm="syz.2.980" name="file1" dev="loop2" ino=10 res=0 errno=0
[  439.163682][ T6009] CPU: 0 UID: 0 PID: 6009 Comm: syz-executor Not tainted syzkaller #0 PREEMPT(full) 
[  439.163703][ T6009] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
[  439.163711][ T6009] Call Trace:
[  439.163718][ T6009]  <TASK>
[  439.163724][ T6009]  dump_stack_lvl+0xe8/0x150
[  439.163748][ T6009]  f2fs_stop_checkpoint+0x3f6/0x5d0
[  439.163769][ T6009]  f2fs_write_end_io+0x124b/0x1710
[  439.163800][ T6009]  __submit_merged_bio+0x258/0x6a0
[  439.163815][ T6009]  ? rcu_is_watching+0x15/0xb0
[  439.163837][ T6009]  __submit_merged_write_cond+0x3c9/0x4e0
[  439.163859][ T6009]  ? __pfx___submit_merged_write_cond+0x10/0x10
[  439.163890][ T6009]  f2fs_write_data_pages+0x2a27/0x36f0
[  439.163908][ T6009]  ? __pfx_hlock_conflict+0x10/0x10
[  439.163945][ T6009]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  439.164029][ T6009]  ? __pfx_hlock_conflict+0x10/0x10
2026/08/04 23:47:54 executed programs: 971
[  439.164040][ T6009]  ? __bfs+0x153/0x290
[  439.164055][ T6009]  ? __pfx_hlock_conflict+0x10/0x10
[  439.164100][ T6009]  ? lockdep_unlock+0x5d/0xd0
[  439.164115][ T6009]  ? __lock_acquire+0x13e8/0x2cf0
[  439.164148][ T6009]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  439.164172][ T6009]  do_writepages+0x338/0x560
[  439.164197][ T6009]  ? do_raw_spin_unlock+0x4d/0x210
[  439.164214][ T6009]  filemap_fdatawrite+0x1e9/0x2f0
[  439.164233][ T6009]  ? __pfx_filemap_fdatawrite+0x10/0x10
[  439.164281][ T6009]  ? do_raw_spin_unlock+0x4d/0x210
[  439.164298][ T6009]  f2fs_sync_dirty_inodes+0x30e/0x830
[  439.164326][ T6009]  f2fs_write_checkpoint+0xa3d/0x2710
[  439.164367][ T6009]  ? __pfx_f2fs_write_checkpoint+0x10/0x10
[  439.164422][ T6009]  kill_f2fs_super+0x2dd/0x700
[  439.164447][ T6009]  ? __pfx_kill_f2fs_super+0x10/0x10
[  439.164474][ T6009]  ? call_rcu+0x64b/0x8b0
[  439.164486][ T6009]  ? lockdep_hardirqs_on+0x7a/0x110
[  439.164511][ T6009]  deactivate_locked_super+0xbc/0x110
[  439.164531][ T6009]  cleanup_mnt+0x3d3/0x460
[  439.164548][ T6009]  task_work_run+0x1d9/0x270
[  439.164568][ T6009]  ? __pfx_task_work_run+0x10/0x10
[  439.164593][ T6009]  exit_to_user_mode_loop+0x1fa/0x730
[  439.164609][ T6009]  ? rcu_is_watching+0x15/0xb0
[  439.164627][ T6009]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  439.164640][ T6009]  do_syscall_64+0x353/0x580
[  439.164654][ T6009]  ? trace_irq_disable+0x3b/0x140
[  439.164673][ T6009]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  439.164684][ T6009] RIP: 0033:0x7f8d2739f257
[  439.164698][ T6009] Code: a2 c7 05 9c 44 25 00 00 00 00 00 eb 96 e8 e1 12 00 00 90 31 f6 e9 09 00 00 00 66 0f 1f 84 00 00 00 00 00 b8 a6 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 01 c3 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8
[  439.164708][ T6009] RSP: 002b:00007ffe58d729a8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
[  439.164722][ T6009] RAX: 0000000000000000 RBX: 00007f8d2743445c RCX: 00007f8d2739f257
[  439.164730][ T6009] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffe58d72a60
[  439.164737][ T6009] RBP: 00007ffe58d72a60 R08: 00007ffe58d73a60 R09: 00000000ffffffff
[  439.164745][ T6009] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffe58d73af0
[  439.164752][ T6009] R13: 00007f8d2743445c R14: 000000000006b2d1 R15: 00007ffe58d73b30
[  439.164774][ T6009]  </TASK>
[  439.173918][ T6009] F2FS-fs (loop1): Stopped filesystem due to reason: 3
[  439.309307][ T6006] CPU: 1 UID: 0 PID: 6006 Comm: syz-executor Not tainted syzkaller #0 PREEMPT(full) 
[  439.309322][ T6006] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
[  439.309328][ T6006] Call Trace:
[  439.309332][ T6006]  <TASK>
[  439.309336][ T6006]  dump_stack_lvl+0xe8/0x150
[  439.309355][ T6006]  f2fs_stop_checkpoint+0x3f6/0x5d0
[  439.309368][ T6006]  f2fs_write_end_io+0x124b/0x1710
[  439.309386][ T6006]  __submit_merged_bio+0x258/0x6a0
[  439.309396][ T6006]  ? rcu_is_watching+0x15/0xb0
[  439.309410][ T6006]  __submit_merged_write_cond+0x3c9/0x4e0
[  439.309422][ T6006]  ? __pfx___submit_merged_write_cond+0x10/0x10
[  439.309438][ T6006]  f2fs_write_data_pages+0x2a27/0x36f0
[  439.309448][ T6006]  ? __lock_acquire+0x683/0x2cf0
[  439.309492][ T6006]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  439.309519][ T6006]  ? __pfx_hlock_conflict+0x10/0x10
[  439.309526][ T6006]  ? __bfs+0x153/0x290
[  439.309534][ T6006]  ? __pfx_hlock_conflict+0x10/0x10
[  439.309547][ T6006]  ? lockdep_unlock+0x5d/0xd0
[  439.309554][ T6006]  ? __lock_acquire+0x13e8/0x2cf0
[  439.309572][ T6006]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  439.309581][ T6006]  do_writepages+0x338/0x560
[  439.309596][ T6006]  ? do_raw_spin_unlock+0x4d/0x210
[  439.309605][ T6006]  filemap_fdatawrite+0x1e9/0x2f0
[  439.309617][ T6006]  ? __pfx_filemap_fdatawrite+0x10/0x10
[  439.309642][ T6006]  ? do_raw_spin_unlock+0x4d/0x210
[  439.309651][ T6006]  f2fs_sync_dirty_inodes+0x30e/0x830
[  439.309667][ T6006]  f2fs_write_checkpoint+0xa3d/0x2710
[  439.309688][ T6006]  ? __pfx_f2fs_write_checkpoint+0x10/0x10
[  439.309716][ T6006]  kill_f2fs_super+0x2dd/0x700
[  439.309729][ T6006]  ? __pfx_kill_f2fs_super+0x10/0x10
[  439.309743][ T6006]  ? call_rcu+0x64b/0x8b0
[  439.309749][ T6006]  ? lockdep_hardirqs_on+0x7a/0x110
[  439.309763][ T6006]  deactivate_locked_super+0xbc/0x110
[  439.309780][ T6006]  cleanup_mnt+0x3d3/0x460
[  439.309795][ T6006]  task_work_run+0x1d9/0x270
[  439.309812][ T6006]  ? __pfx_task_work_run+0x10/0x10
[  439.309835][ T6006]  exit_to_user_mode_loop+0x1fa/0x730
[  439.309851][ T6006]  ? rcu_is_watching+0x15/0xb0
[  439.309866][ T6006]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  439.309879][ T6006]  do_syscall_64+0x353/0x580
[  439.309901][ T6006]  ? trace_irq_disable+0x3b/0x140
[  439.309915][ T6006]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  439.309922][ T6006] RIP: 0033:0x7f6fa019f257
[  439.309931][ T6006] Code: a2 c7 05 9c 44 25 00 00 00 00 00 eb 96 e8 e1 12 00 00 90 31 f6 e9 09 00 00 00 66 0f 1f 84 00 00 00 00 00 b8 a6 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 01 c3 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8
[  439.309938][ T6006] RSP: 002b:00007ffe2d65f5b8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
[  439.309976][ T6006] RAX: 0000000000000000 RBX: 00007f6fa023445c RCX: 00007f6fa019f257
[  439.309984][ T6006] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffe2d65f670
[  439.309989][ T6006] RBP: 00007ffe2d65f670 R08: 00007ffe2d660670 R09: 00000000ffffffff
[  439.309994][ T6006] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffe2d660700
[  439.309999][ T6006] R13: 00007f6fa023445c R14: 000000000006b302 R15: 00007ffe2d660740
[  439.310011][ T6006]  </TASK>
[  439.310558][ T6006] F2FS-fs (loop2): Stopped filesystem due to reason: 3
[  439.596080][T10077] loop0: detected capacity change from 0 to 40427
[  439.602856][T10077] F2FS-fs (loop0): Small segment_count (9 < 1 * 24)
[  439.609038][T10077] F2FS-fs (loop0): Can't find valid F2FS filesystem in 1th superblock
[  439.671166][T10077] F2FS-fs (loop0): f2fs_recover_fsync_data: recovery fsync data, check_only: 0
[  439.678387][T10077] F2FS-fs (loop0): Try to recover 1th superblock, ret: 0
[  439.681209][T10077] F2FS-fs (loop0): Mounted with checkpoint version = 48b305e5
[  439.713906][ T6004] CPU: 1 UID: 0 PID: 6004 Comm: syz-executor Not tainted syzkaller #0 PREEMPT(full) 
[  439.713923][ T6004] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
[  439.713929][ T6004] Call Trace:
[  439.713933][ T6004]  <TASK>
[  439.713937][ T6004]  dump_stack_lvl+0xe8/0x150
[  439.713986][ T6004]  f2fs_stop_checkpoint+0x3f6/0x5d0
[  439.713999][ T6004]  f2fs_write_end_io+0x124b/0x1710
[  439.714017][ T6004]  __submit_merged_bio+0x258/0x6a0
[  439.714026][ T6004]  ? rcu_is_watching+0x15/0xb0
[  439.714040][ T6004]  __submit_merged_write_cond+0x3c9/0x4e0
[  439.714053][ T6004]  ? __pfx___submit_merged_write_cond+0x10/0x10
[  439.714070][ T6004]  f2fs_write_data_pages+0x2a27/0x36f0
[  439.714080][ T6004]  ? __lock_acquire+0x683/0x2cf0
[  439.714102][ T6004]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  439.714127][ T6004]  ? __pfx_hlock_conflict+0x10/0x10
[  439.714134][ T6004]  ? __bfs+0x153/0x290
[  439.714142][ T6004]  ? __pfx_hlock_conflict+0x10/0x10
[  439.714155][ T6004]  ? lockdep_unlock+0x5d/0xd0
[  439.714162][ T6004]  ? __lock_acquire+0x13e8/0x2cf0
[  439.714181][ T6004]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  439.714190][ T6004]  do_writepages+0x338/0x560
[  439.714205][ T6004]  ? do_raw_spin_unlock+0x4d/0x210
[  439.714215][ T6004]  filemap_fdatawrite+0x1e9/0x2f0
[  439.714227][ T6004]  ? __pfx_filemap_fdatawrite+0x10/0x10
[  439.714253][ T6004]  ? do_raw_spin_unlock+0x4d/0x210
[  439.714262][ T6004]  f2fs_sync_dirty_inodes+0x30e/0x830
[  439.714279][ T6004]  f2fs_write_checkpoint+0xa3d/0x2710
[  439.714301][ T6004]  ? __pfx_f2fs_write_checkpoint+0x10/0x10
[  439.714350][ T6004]  kill_f2fs_super+0x2dd/0x700
[  439.714365][ T6004]  ? __pfx_kill_f2fs_super+0x10/0x10
[  439.714380][ T6004]  ? call_rcu+0x64b/0x8b0
[  439.714387][ T6004]  ? lockdep_hardirqs_on+0x7a/0x110
[  439.714402][ T6004]  deactivate_locked_super+0xbc/0x110
[  439.714415][ T6004]  cleanup_mnt+0x3d3/0x460
[  439.714425][ T6004]  task_work_run+0x1d9/0x270
[  439.714438][ T6004]  ? __pfx_task_work_run+0x10/0x10
[  439.714452][ T6004]  exit_to_user_mode_loop+0x1fa/0x730
[  439.714462][ T6004]  ? rcu_is_watching+0x15/0xb0
[  439.714472][ T6004]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  439.714480][ T6004]  do_syscall_64+0x353/0x580
[  439.714489][ T6004]  ? trace_irq_disable+0x3b/0x140
[  439.714502][ T6004]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  439.714509][ T6004] RIP: 0033:0x7f437b79f257
[  439.714518][ T6004] Code: a2 c7 05 9c 44 25 00 00 00 00 00 eb 96 e8 e1 12 00 00 90 31 f6 e9 09 00 00 00 66 0f 1f 84 00 00 00 00 00 b8 a6 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 01 c3 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8
[  439.714525][ T6004] RSP: 002b:00007fff3d965688 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
[  439.714535][ T6004] RAX: 0000000000000000 RBX: 00007f437b83445c RCX: 00007f437b79f257
[  439.714540][ T6004] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007fff3d965740
[  439.714544][ T6004] RBP: 00007fff3d965740 R08: 00007fff3d966740 R09: 00000000ffffffff
[  439.714549][ T6004] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fff3d9667d0
[  439.714554][ T6004] R13: 00007f437b83445c R14: 000000000006b50c R15: 00007fff3d966810
[  439.714566][ T6004]  </TASK>
[  439.825011][ T6004] F2FS-fs (loop0): Stopped filesystem due to reason: 3
[  439.979796][T10083] loop2: detected capacity change from 0 to 40427
[  439.985455][T10083] F2FS-fs (loop2): Small segment_count (9 < 1 * 24)
[  439.991968][T10083] F2FS-fs (loop2): Can't find valid F2FS filesystem in 1th superblock
[  440.032065][T10083] F2FS-fs (loop2): f2fs_recover_fsync_data: recovery fsync data, check_only: 0
[  440.038729][T10083] F2FS-fs (loop2): Try to recover 1th superblock, ret: 0
[  440.040914][T10083] F2FS-fs (loop2): Mounted with checkpoint version = 48b305e5
[  440.051189][T10081] loop1: detected capacity change from 0 to 40427
[  440.060290][T10081] F2FS-fs (loop1): Small segment_count (9 < 1 * 24)
[  440.061191][ T6006] CPU: 0 UID: 0 PID: 6006 Comm: syz-executor Not tainted syzkaller #0 PREEMPT(full) 
[  440.061210][ T6006] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
[  440.061219][ T6006] Call Trace:
[  440.061225][ T6006]  <TASK>
[  440.061230][ T6006]  dump_stack_lvl+0xe8/0x150
[  440.061253][ T6006]  f2fs_stop_checkpoint+0x3f6/0x5d0
[  440.061274][ T6006]  f2fs_write_end_io+0x124b/0x1710
[  440.061302][ T6006]  __submit_merged_bio+0x258/0x6a0
[  440.061317][ T6006]  ? rcu_is_watching+0x15/0xb0
[  440.061340][ T6006]  __submit_merged_write_cond+0x3c9/0x4e0
[  440.061360][ T6006]  ? __pfx___submit_merged_write_cond+0x10/0x10
[  440.061389][ T6006]  f2fs_write_data_pages+0x2a27/0x36f0
[  440.061405][ T6006]  ? __lock_acquire+0x683/0x2cf0
[  440.061441][ T6006]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  440.061482][ T6006]  ? __pfx_hlock_conflict+0x10/0x10
[  440.061494][ T6006]  ? __bfs+0x153/0x290
[  440.061508][ T6006]  ? __pfx_hlock_conflict+0x10/0x10
[  440.061529][ T6006]  ? lockdep_unlock+0x5d/0xd0
[  440.061541][ T6006]  ? __lock_acquire+0x13e8/0x2cf0
[  440.061571][ T6006]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  440.061589][ T6006]  do_writepages+0x338/0x560
[  440.061611][ T6006]  ? do_raw_spin_unlock+0x4d/0x210
[  440.061627][ T6006]  filemap_fdatawrite+0x1e9/0x2f0
[  440.061646][ T6006]  ? __pfx_filemap_fdatawrite+0x10/0x10
[  440.061685][ T6006]  ? do_raw_spin_unlock+0x4d/0x210
[  440.061703][ T6006]  f2fs_sync_dirty_inodes+0x30e/0x830
[  440.061728][ T6006]  f2fs_write_checkpoint+0xa3d/0x2710
[  440.061764][ T6006]  ? __pfx_f2fs_write_checkpoint+0x10/0x10
[  440.061812][ T6006]  kill_f2fs_super+0x2dd/0x700
[  440.061833][ T6006]  ? __pfx_kill_f2fs_super+0x10/0x10
[  440.061857][ T6006]  ? call_rcu+0x64b/0x8b0
[  440.061869][ T6006]  ? lockdep_hardirqs_on+0x7a/0x110
[  440.061889][ T6006]  deactivate_locked_super+0xbc/0x110
[  440.061908][ T6006]  cleanup_mnt+0x3d3/0x460
[  440.061923][ T6006]  task_work_run+0x1d9/0x270
[  440.061973][ T6006]  ? __pfx_task_work_run+0x10/0x10
[  440.061996][ T6006]  exit_to_user_mode_loop+0x1fa/0x730
[  440.062016][ T6006]  ? rcu_is_watching+0x15/0xb0
[  440.062033][ T6006]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  440.062047][ T6006]  do_syscall_64+0x353/0x580
[  440.062060][ T6006]  ? trace_irq_disable+0x3b/0x140
[  440.062080][ T6006]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  440.062091][ T6006] RIP: 0033:0x7f6fa019f257
[  440.062104][ T6006] Code: a2 c7 05 9c 44 25 00 00 00 00 00 eb 96 e8 e1 12 00 00 90 31 f6 e9 09 00 00 00 66 0f 1f 84 00 00 00 00 00 b8 a6 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 01 c3 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8
[  440.062114][ T6006] RSP: 002b:00007ffe2d65f5b8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
[  440.062129][ T6006] RAX: 0000000000000000 RBX: 00007f6fa023445c RCX: 00007f6fa019f257
[  440.062137][ T6006] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffe2d65f670
[  440.062144][ T6006] RBP: 00007ffe2d65f670 R08: 00007ffe2d660670 R09: 00000000ffffffff
[  440.062158][ T6006] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffe2d660700
[  440.062166][ T6006] R13: 00007f6fa023445c R14: 000000000006b668 R15: 00007ffe2d660740
[  440.062184][ T6006]  </TASK>
[  440.145663][ T1381] ieee802154 phy0 wpan0: encryption failed: -22
[  440.146139][T10081] F2FS-fs (loop1): Can't find valid F2FS filesystem in 1th superblock
[  440.150239][ T1381] ieee802154 phy1 wpan1: encryption failed: -22
[  440.165732][ T6006] F2FS-fs (loop2): Stopped filesystem due to reason: 3
[  440.256346][T10081] F2FS-fs (loop1): f2fs_recover_fsync_data: recovery fsync data, check_only: 0
[  440.273806][T10081] F2FS-fs (loop1): Try to recover 1th superblock, ret: 0
[  440.281185][T10081] F2FS-fs (loop1): Mounted with checkpoint version = 48b305e5
[  440.313752][ T6009] CPU: 1 UID: 0 PID: 6009 Comm: syz-executor Not tainted syzkaller #0 PREEMPT(full) 
[  440.313768][ T6009] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
[  440.313774][ T6009] Call Trace:
[  440.313779][ T6009]  <TASK>
[  440.313785][ T6009]  dump_stack_lvl+0xe8/0x150
[  440.313808][ T6009]  f2fs_stop_checkpoint+0x3f6/0x5d0
[  440.313827][ T6009]  f2fs_write_end_io+0x124b/0x1710
[  440.313877][ T6009]  __submit_merged_bio+0x258/0x6a0
[  440.313889][ T6009]  ? rcu_is_watching+0x15/0xb0
[  440.313903][ T6009]  __submit_merged_write_cond+0x3c9/0x4e0
[  440.313915][ T6009]  ? __pfx___submit_merged_write_cond+0x10/0x10
[  440.313959][ T6009]  f2fs_write_data_pages+0x2a27/0x36f0
[  440.313989][ T6009]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  440.314014][ T6009]  ? __pfx_hlock_conflict+0x10/0x10
[  440.314022][ T6009]  ? __bfs+0x153/0x290
[  440.314031][ T6009]  ? __pfx_hlock_conflict+0x10/0x10
[  440.314043][ T6009]  ? lockdep_unlock+0x5d/0xd0
[  440.314051][ T6009]  ? __lock_acquire+0x13e8/0x2cf0
[  440.314070][ T6009]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  440.314080][ T6009]  do_writepages+0x338/0x560
[  440.314094][ T6009]  ? do_raw_spin_unlock+0x4d/0x210
[  440.314104][ T6009]  filemap_fdatawrite+0x1e9/0x2f0
[  440.314116][ T6009]  ? __pfx_filemap_fdatawrite+0x10/0x10
[  440.314141][ T6009]  ? do_raw_spin_unlock+0x4d/0x210
[  440.314149][ T6009]  f2fs_sync_dirty_inodes+0x30e/0x830
[  440.314166][ T6009]  f2fs_write_checkpoint+0xa3d/0x2710
[  440.314187][ T6009]  ? __pfx_f2fs_write_checkpoint+0x10/0x10
[  440.314215][ T6009]  kill_f2fs_super+0x2dd/0x700
[  440.314228][ T6009]  ? __pfx_kill_f2fs_super+0x10/0x10
[  440.314242][ T6009]  ? call_rcu+0x64b/0x8b0
[  440.314248][ T6009]  ? lockdep_hardirqs_on+0x7a/0x110
[  440.314262][ T6009]  deactivate_locked_super+0xbc/0x110
[  440.314274][ T6009]  cleanup_mnt+0x3d3/0x460
[  440.314284][ T6009]  task_work_run+0x1d9/0x270
[  440.314301][ T6009]  ? __pfx_task_work_run+0x10/0x10
[  440.314315][ T6009]  exit_to_user_mode_loop+0x1fa/0x730
[  440.314324][ T6009]  ? rcu_is_watching+0x15/0xb0
[  440.314352][ T6009]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  440.314360][ T6009]  do_syscall_64+0x353/0x580
[  440.314368][ T6009]  ? trace_irq_disable+0x3b/0x140
[  440.314379][ T6009]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  440.314386][ T6009] RIP: 0033:0x7f8d2739f257
[  440.314395][ T6009] Code: a2 c7 05 9c 44 25 00 00 00 00 00 eb 96 e8 e1 12 00 00 90 31 f6 e9 09 00 00 00 66 0f 1f 84 00 00 00 00 00 b8 a6 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 01 c3 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8
[  440.314402][ T6009] RSP: 002b:00007ffe58d729a8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
[  440.314412][ T6009] RAX: 0000000000000000 RBX: 00007f8d2743445c RCX: 00007f8d2739f257
[  440.314417][ T6009] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffe58d72a60
[  440.314421][ T6009] RBP: 00007ffe58d72a60 R08: 00007ffe58d73a60 R09: 00000000ffffffff
[  440.314426][ T6009] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffe58d73af0
[  440.314431][ T6009] R13: 00007f8d2743445c R14: 000000000006b767 R15: 00007ffe58d73b30
[  440.314442][ T6009]  </TASK>
[  440.414916][ T6009] F2FS-fs (loop1): Stopped filesystem due to reason: 3
[  440.449825][T10087] F2FS-fs (loop0): Small segment_count (9 < 1 * 24)
[  440.452160][T10087] F2FS-fs (loop0): Can't find valid F2FS filesystem in 1th superblock
[  440.561770][T10087] F2FS-fs (loop0): f2fs_recover_fsync_data: recovery fsync data, check_only: 0
[  440.569604][T10087] F2FS-fs (loop0): Try to recover 1th superblock, ret: 0
[  440.572455][T10087] F2FS-fs (loop0): Mounted with checkpoint version = 48b305e5
[  440.609702][ T6004] CPU: 1 UID: 0 PID: 6004 Comm: syz-executor Not tainted syzkaller #0 PREEMPT(full) 
[  440.609727][ T6004] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
[  440.609736][ T6004] Call Trace:
[  440.609744][ T6004]  <TASK>
[  440.609750][ T6004]  dump_stack_lvl+0xe8/0x150
[  440.609775][ T6004]  f2fs_stop_checkpoint+0x3f6/0x5d0
[  440.609804][ T6004]  f2fs_write_end_io+0x124b/0x1710
[  440.609835][ T6004]  __submit_merged_bio+0x258/0x6a0
[  440.609849][ T6004]  ? rcu_is_watching+0x15/0xb0
[  440.609872][ T6004]  __submit_merged_write_cond+0x3c9/0x4e0
[  440.609891][ T6004]  ? __pfx___submit_merged_write_cond+0x10/0x10
[  440.609918][ T6004]  f2fs_write_data_pages+0x2a27/0x36f0
[  440.609984][ T6004]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  440.610030][ T6004]  ? __pfx_hlock_conflict+0x10/0x10
[  440.610042][ T6004]  ? __pfx_hlock_conflict+0x10/0x10
[  440.610052][ T6004]  ? __bfs+0x153/0x290
[  440.610066][ T6004]  ? __pfx_hlock_conflict+0x10/0x10
[  440.610090][ T6004]  ? lockdep_unlock+0x5d/0xd0
[  440.610103][ T6004]  ? __lock_acquire+0x13e8/0x2cf0
[  440.610138][ T6004]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  440.610156][ T6004]  do_writepages+0x338/0x560
[  440.610182][ T6004]  ? do_raw_spin_unlock+0x4d/0x210
[  440.610198][ T6004]  filemap_fdatawrite+0x1e9/0x2f0
[  440.610218][ T6004]  ? __pfx_filemap_fdatawrite+0x10/0x10
[  440.610267][ T6004]  ? do_raw_spin_unlock+0x4d/0x210
[  440.610283][ T6004]  f2fs_sync_dirty_inodes+0x30e/0x830
[  440.610311][ T6004]  f2fs_write_checkpoint+0xa3d/0x2710
[  440.610353][ T6004]  ? __pfx_f2fs_write_checkpoint+0x10/0x10
[  440.610409][ T6004]  kill_f2fs_super+0x2dd/0x700
[  440.610433][ T6004]  ? __pfx_kill_f2fs_super+0x10/0x10
[  440.610460][ T6004]  ? call_rcu+0x64b/0x8b0
[  440.610471][ T6004]  ? lockdep_hardirqs_on+0x7a/0x110
[  440.610497][ T6004]  deactivate_locked_super+0xbc/0x110
[  440.610518][ T6004]  cleanup_mnt+0x3d3/0x460
[  440.610535][ T6004]  task_work_run+0x1d9/0x270
[  440.610556][ T6004]  ? __pfx_task_work_run+0x10/0x10
[  440.610581][ T6004]  exit_to_user_mode_loop+0x1fa/0x730
[  440.610597][ T6004]  ? rcu_is_watching+0x15/0xb0
[  440.610615][ T6004]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  440.610630][ T6004]  do_syscall_64+0x353/0x580
[  440.610643][ T6004]  ? trace_irq_disable+0x3b/0x140
[  440.610664][ T6004]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  440.610676][ T6004] RIP: 0033:0x7f437b79f257
[  440.610690][ T6004] Code: a2 c7 05 9c 44 25 00 00 00 00 00 eb 96 e8 e1 12 00 00 90 31 f6 e9 09 00 00 00 66 0f 1f 84 00 00 00 00 00 b8 a6 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 01 c3 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8
[  440.610722][ T6004] RSP: 002b:00007fff3d965688 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
[  440.610738][ T6004] RAX: 0000000000000000 RBX: 00007f437b83445c RCX: 00007f437b79f257
[  440.610746][ T6004] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007fff3d965740
[  440.610753][ T6004] RBP: 00007fff3d965740 R08: 00007fff3d966740 R09: 00000000ffffffff
[  440.610761][ T6004] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fff3d9667d0
[  440.610769][ T6004] R13: 00007f437b83445c R14: 000000000006b895 R15: 00007fff3d966810
[  440.610796][ T6004]  </TASK>
[  440.735975][ T6004] F2FS-fs (loop0): Stopped filesystem due to reason: 3
[  440.748264][ T5736] loop0: lost filesystem error report for type 5 error -108
[  441.053357][T10093] F2FS-fs (loop2): Small segment_count (9 < 1 * 24)
[  441.082204][T10093] F2FS-fs (loop2): Can't find valid F2FS filesystem in 1th superblock
[  441.145158][T10093] F2FS-fs (loop2): f2fs_recover_fsync_data: recovery fsync data, check_only: 0
[  441.152364][T10093] F2FS-fs (loop2): Try to recover 1th superblock, ret: 0
[  441.155901][T10093] F2FS-fs (loop2): Mounted with checkpoint version = 48b305e5
[  441.178618][ T6006] CPU: 1 UID: 0 PID: 6006 Comm: syz-executor Not tainted syzkaller #0 PREEMPT(full) 
[  441.178644][ T6006] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
[  441.178652][ T6006] Call Trace:
[  441.178660][ T6006]  <TASK>
[  441.178667][ T6006]  dump_stack_lvl+0xe8/0x150
[  441.178694][ T6006]  f2fs_stop_checkpoint+0x3f6/0x5d0
[  441.178717][ T6006]  f2fs_write_end_io+0x124b/0x1710
[  441.178747][ T6006]  __submit_merged_bio+0x258/0x6a0
[  441.178764][ T6006]  ? rcu_is_watching+0x15/0xb0
[  441.178787][ T6006]  __submit_merged_write_cond+0x3c9/0x4e0
[  441.178809][ T6006]  ? __pfx___submit_merged_write_cond+0x10/0x10
[  441.178838][ T6006]  f2fs_write_data_pages+0x2a27/0x36f0
[  441.178876][ T6006]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  441.178945][ T6006]  ? __pfx_hlock_conflict+0x10/0x10
[  441.178960][ T6006]  ? __bfs+0x153/0x290
[  441.178975][ T6006]  ? __pfx_hlock_conflict+0x10/0x10
[  441.178997][ T6006]  ? lockdep_unlock+0x5d/0xd0
[  441.179012][ T6006]  ? __lock_acquire+0x13e8/0x2cf0
[  441.179042][ T6006]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  441.179061][ T6006]  do_writepages+0x338/0x560
[  441.179087][ T6006]  ? do_raw_spin_unlock+0x4d/0x210
[  441.179102][ T6006]  filemap_fdatawrite+0x1e9/0x2f0
[  441.179123][ T6006]  ? __pfx_filemap_fdatawrite+0x10/0x10
[  441.179165][ T6006]  ? do_raw_spin_unlock+0x4d/0x210
[  441.179208][ T6006]  f2fs_sync_dirty_inodes+0x30e/0x830
[  441.179236][ T6006]  f2fs_write_checkpoint+0xa3d/0x2710
[  441.179272][ T6006]  ? __pfx_f2fs_write_checkpoint+0x10/0x10
[  441.179320][ T6006]  kill_f2fs_super+0x2dd/0x700
[  441.179343][ T6006]  ? __pfx_kill_f2fs_super+0x10/0x10
[  441.179367][ T6006]  ? call_rcu+0x64b/0x8b0
[  441.179379][ T6006]  ? lockdep_hardirqs_on+0x7a/0x110
[  441.179402][ T6006]  deactivate_locked_super+0xbc/0x110
[  441.179422][ T6006]  cleanup_mnt+0x3d3/0x460
[  441.179438][ T6006]  task_work_run+0x1d9/0x270
[  441.179458][ T6006]  ? __pfx_task_work_run+0x10/0x10
[  441.179480][ T6006]  exit_to_user_mode_loop+0x1fa/0x730
[  441.179496][ T6006]  ? rcu_is_watching+0x15/0xb0
[  441.179514][ T6006]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  441.179526][ T6006]  do_syscall_64+0x353/0x580
[  441.179541][ T6006]  ? trace_irq_disable+0x3b/0x140
[  441.179561][ T6006]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  441.179573][ T6006] RIP: 0033:0x7f6fa019f257
[  441.179586][ T6006] Code: a2 c7 05 9c 44 25 00 00 00 00 00 eb 96 e8 e1 12 00 00 90 31 f6 e9 09 00 00 00 66 0f 1f 84 00 00 00 00 00 b8 a6 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 01 c3 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8
[  441.179597][ T6006] RSP: 002b:00007ffe2d65f5b8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
[  441.179611][ T6006] RAX: 0000000000000000 RBX: 00007f6fa023445c RCX: 00007f6fa019f257
[  441.179620][ T6006] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffe2d65f670
[  441.179626][ T6006] RBP: 00007ffe2d65f670 R08: 00007ffe2d660670 R09: 00000000ffffffff
[  441.179636][ T6006] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffe2d660700
[  441.179642][ T6006] R13: 00007f6fa023445c R14: 000000000006bac6 R15: 00007ffe2d660740
[  441.179662][ T6006]  </TASK>
[  441.180755][ T6006] F2FS-fs (loop2): Stopped filesystem due to reason: 3
[  441.344696][T10095] F2FS-fs (loop1): Small segment_count (9 < 1 * 24)
[  441.354028][T10095] F2FS-fs (loop1): Can't find valid F2FS filesystem in 1th superblock
[  441.468070][T10095] F2FS-fs (loop1): f2fs_recover_fsync_data: recovery fsync data, check_only: 0
[  441.487281][T10095] F2FS-fs (loop1): Try to recover 1th superblock, ret: 0
[  441.494637][T10095] F2FS-fs (loop1): Mounted with checkpoint version = 48b305e5
[  441.513708][T10099] F2FS-fs (loop0): Small segment_count (9 < 1 * 24)
[  441.530431][T10099] F2FS-fs (loop0): Can't find valid F2FS filesystem in 1th superblock
[  441.537041][ T6009] CPU: 0 UID: 0 PID: 6009 Comm: syz-executor Not tainted syzkaller #0 PREEMPT(full) 
[  441.537058][ T6009] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
[  441.537065][ T6009] Call Trace:
[  441.537071][ T6009]  <TASK>
[  441.537076][ T6009]  dump_stack_lvl+0xe8/0x150
[  441.537096][ T6009]  f2fs_stop_checkpoint+0x3f6/0x5d0
[  441.537113][ T6009]  f2fs_write_end_io+0x124b/0x1710
[  441.537137][ T6009]  __submit_merged_bio+0x258/0x6a0
[  441.537149][ T6009]  ? rcu_is_watching+0x15/0xb0
[  441.537168][ T6009]  __submit_merged_write_cond+0x3c9/0x4e0
[  441.537188][ T6009]  ? __pfx___submit_merged_write_cond+0x10/0x10
[  441.537217][ T6009]  f2fs_write_data_pages+0x2a27/0x36f0
[  441.537234][ T6009]  ? __lock_acquire+0x683/0x2cf0
[  441.537271][ T6009]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  441.537315][ T6009]  ? __pfx_hlock_conflict+0x10/0x10
[  441.537326][ T6009]  ? __bfs+0x153/0x290
[  441.537341][ T6009]  ? __pfx_hlock_conflict+0x10/0x10
[  441.537363][ T6009]  ? lockdep_unlock+0x5d/0xd0
[  441.537376][ T6009]  ? __lock_acquire+0x13e8/0x2cf0
[  441.537407][ T6009]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  441.537425][ T6009]  do_writepages+0x338/0x560
[  441.537476][ T6009]  ? do_raw_spin_unlock+0x4d/0x210
[  441.537492][ T6009]  filemap_fdatawrite+0x1e9/0x2f0
[  441.537512][ T6009]  ? __pfx_filemap_fdatawrite+0x10/0x10
[  441.537557][ T6009]  ? do_raw_spin_unlock+0x4d/0x210
[  441.537573][ T6009]  f2fs_sync_dirty_inodes+0x30e/0x830
[  441.537601][ T6009]  f2fs_write_checkpoint+0xa3d/0x2710
[  441.537644][ T6009]  ? __pfx_f2fs_write_checkpoint+0x10/0x10
[  441.537694][ T6009]  kill_f2fs_super+0x2dd/0x700
[  441.537717][ T6009]  ? __pfx_kill_f2fs_super+0x10/0x10
[  441.537742][ T6009]  ? call_rcu+0x64b/0x8b0
[  441.537753][ T6009]  ? lockdep_hardirqs_on+0x7a/0x110
[  441.537775][ T6009]  deactivate_locked_super+0xbc/0x110
[  441.537793][ T6009]  cleanup_mnt+0x3d3/0x460
[  441.537810][ T6009]  task_work_run+0x1d9/0x270
[  441.537830][ T6009]  ? __pfx_task_work_run+0x10/0x10
[  441.537853][ T6009]  exit_to_user_mode_loop+0x1fa/0x730
[  441.537868][ T6009]  ? rcu_is_watching+0x15/0xb0
[  441.537886][ T6009]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  441.537899][ T6009]  do_syscall_64+0x353/0x580
[  441.537913][ T6009]  ? trace_irq_disable+0x3b/0x140
[  441.537962][ T6009]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  441.537975][ T6009] RIP: 0033:0x7f8d2739f257
[  441.537988][ T6009] Code: a2 c7 05 9c 44 25 00 00 00 00 00 eb 96 e8 e1 12 00 00 90 31 f6 e9 09 00 00 00 66 0f 1f 84 00 00 00 00 00 b8 a6 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 01 c3 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8
[  441.537999][ T6009] RSP: 002b:00007ffe58d729a8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
[  441.538012][ T6009] RAX: 0000000000000000 RBX: 00007f8d2743445c RCX: 00007f8d2739f257
[  441.538021][ T6009] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffe58d72a60
[  441.538028][ T6009] RBP: 00007ffe58d72a60 R08: 00007ffe58d73a60 R09: 00000000ffffffff
[  441.538037][ T6009] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffe58d73af0
[  441.538044][ T6009] R13: 00007f8d2743445c R14: 000000000006bc23 R15: 00007ffe58d73b30
[  441.538064][ T6009]  </TASK>
[  441.663368][ T6009] F2FS-fs (loop1): Stopped filesystem due to reason: 3
[  441.819544][T10099] F2FS-fs (loop0): f2fs_recover_fsync_data: recovery fsync data, check_only: 0
[  441.827608][T10099] F2FS-fs (loop0): Try to recover 1th superblock, ret: 0
[  441.830548][T10099] F2FS-fs (loop0): Mounted with checkpoint version = 48b305e5
[  441.850275][ T6004] CPU: 0 UID: 0 PID: 6004 Comm: syz-executor Not tainted syzkaller #0 PREEMPT(full) 
[  441.850295][ T6004] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
[  441.850304][ T6004] Call Trace:
[  441.850310][ T6004]  <TASK>
[  441.850315][ T6004]  dump_stack_lvl+0xe8/0x150
[  441.850338][ T6004]  f2fs_stop_checkpoint+0x3f6/0x5d0
[  441.850359][ T6004]  f2fs_write_end_io+0x124b/0x1710
[  441.850391][ T6004]  __submit_merged_bio+0x258/0x6a0
[  441.850406][ T6004]  ? rcu_is_watching+0x15/0xb0
[  441.850428][ T6004]  __submit_merged_write_cond+0x3c9/0x4e0
[  441.850450][ T6004]  ? __pfx___submit_merged_write_cond+0x10/0x10
[  441.850483][ T6004]  f2fs_write_data_pages+0x2a27/0x36f0
[  441.850526][ T6004]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  441.850575][ T6004]  ? __pfx_hlock_conflict+0x10/0x10
[  441.850587][ T6004]  ? __bfs+0x153/0x290
[  441.850633][ T6004]  ? __pfx_hlock_conflict+0x10/0x10
[  441.850658][ T6004]  ? lockdep_unlock+0x5d/0xd0
[  441.850671][ T6004]  ? __lock_acquire+0x13e8/0x2cf0
[  441.850707][ T6004]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  441.850725][ T6004]  do_writepages+0x338/0x560
[  441.850749][ T6004]  ? do_raw_spin_unlock+0x4d/0x210
[  441.850766][ T6004]  filemap_fdatawrite+0x1e9/0x2f0
[  441.850785][ T6004]  ? __pfx_filemap_fdatawrite+0x10/0x10
[  441.850834][ T6004]  ? do_raw_spin_unlock+0x4d/0x210
[  441.850850][ T6004]  f2fs_sync_dirty_inodes+0x30e/0x830
[  441.850880][ T6004]  f2fs_write_checkpoint+0xa3d/0x2710
[  441.850949][ T6004]  ? __pfx_f2fs_write_checkpoint+0x10/0x10
[  441.851007][ T6004]  kill_f2fs_super+0x2dd/0x700
[  441.851031][ T6004]  ? __pfx_kill_f2fs_super+0x10/0x10
[  441.851057][ T6004]  ? call_rcu+0x64b/0x8b0
[  441.851068][ T6004]  ? lockdep_hardirqs_on+0x7a/0x110
[  441.851093][ T6004]  deactivate_locked_super+0xbc/0x110
[  441.851112][ T6004]  cleanup_mnt+0x3d3/0x460
[  441.851128][ T6004]  task_work_run+0x1d9/0x270
[  441.851149][ T6004]  ? __pfx_task_work_run+0x10/0x10
[  441.851174][ T6004]  exit_to_user_mode_loop+0x1fa/0x730
[  441.851190][ T6004]  ? rcu_is_watching+0x15/0xb0
[  441.851208][ T6004]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  441.851222][ T6004]  do_syscall_64+0x353/0x580
[  441.851235][ T6004]  ? trace_irq_disable+0x3b/0x140
[  441.851255][ T6004]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  441.851267][ T6004] RIP: 0033:0x7f437b79f257
[  441.851280][ T6004] Code: a2 c7 05 9c 44 25 00 00 00 00 00 eb 96 e8 e1 12 00 00 90 31 f6 e9 09 00 00 00 66 0f 1f 84 00 00 00 00 00 b8 a6 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 01 c3 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8
[  441.851291][ T6004] RSP: 002b:00007fff3d965688 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
[  441.851304][ T6004] RAX: 0000000000000000 RBX: 00007f437b83445c RCX: 00007f437b79f257
[  441.851312][ T6004] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007fff3d965740
[  441.851319][ T6004] RBP: 00007fff3d965740 R08: 00007fff3d966740 R09: 00000000ffffffff
[  441.851327][ T6004] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fff3d9667d0
[  441.851334][ T6004] R13: 00007f437b83445c R14: 000000000006bd6a R15: 00007fff3d966810
[  441.851356][ T6004]  </TASK>
[  441.852335][ T6004] F2FS-fs (loop0): Stopped filesystem due to reason: 3
[  442.019709][T10103] F2FS-fs (loop2): Small segment_count (9 < 1 * 24)
[  442.022439][T10103] F2FS-fs (loop2): Can't find valid F2FS filesystem in 1th superblock
[  442.128266][T10103] F2FS-fs (loop2): f2fs_recover_fsync_data: recovery fsync data, check_only: 0
[  442.148485][T10103] F2FS-fs (loop2): Try to recover 1th superblock, ret: 0
[  442.152847][T10103] F2FS-fs (loop2): Mounted with checkpoint version = 48b305e5
[  442.213122][ T6006] CPU: 1 UID: 0 PID: 6006 Comm: syz-executor Not tainted syzkaller #0 PREEMPT(full) 
[  442.213147][ T6006] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
[  442.213156][ T6006] Call Trace:
[  442.213171][ T6006]  <TASK>
[  442.213179][ T6006]  dump_stack_lvl+0xe8/0x150
[  442.213206][ T6006]  f2fs_stop_checkpoint+0x3f6/0x5d0
[  442.213228][ T6006]  f2fs_write_end_io+0x124b/0x1710
[  442.213281][ T6006]  __submit_merged_bio+0x258/0x6a0
[  442.213296][ T6006]  ? rcu_is_watching+0x15/0xb0
[  442.213319][ T6006]  __submit_merged_write_cond+0x3c9/0x4e0
[  442.213340][ T6006]  ? __pfx___submit_merged_write_cond+0x10/0x10
[  442.213371][ T6006]  f2fs_write_data_pages+0x2a27/0x36f0
[  442.213388][ T6006]  ? __lock_acquire+0x683/0x2cf0
[  442.213423][ T6006]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  442.213450][ T6006]  ? lockdep_unlock+0x5d/0xd0
[  442.213483][ T6006]  ? ktime_get+0x45/0x220
[  442.213498][ T6006]  ? __pfx_hlock_conflict+0x10/0x10
[  442.213510][ T6006]  ? __bfs+0x153/0x290
[  442.213523][ T6006]  ? __pfx_hlock_conflict+0x10/0x10
[  442.213547][ T6006]  ? lockdep_unlock+0x5d/0xd0
[  442.213560][ T6006]  ? __lock_acquire+0x13e8/0x2cf0
[  442.213593][ T6006]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  442.213611][ T6006]  do_writepages+0x338/0x560
[  442.213636][ T6006]  ? do_raw_spin_unlock+0x4d/0x210
[  442.213653][ T6006]  filemap_fdatawrite+0x1e9/0x2f0
[  442.213671][ T6006]  ? __pfx_filemap_fdatawrite+0x10/0x10
[  442.213718][ T6006]  ? do_raw_spin_unlock+0x4d/0x210
[  442.213734][ T6006]  f2fs_sync_dirty_inodes+0x30e/0x830
[  442.213763][ T6006]  f2fs_write_checkpoint+0xa3d/0x2710
[  442.213803][ T6006]  ? __pfx_f2fs_write_checkpoint+0x10/0x10
[  442.213855][ T6006]  kill_f2fs_super+0x2dd/0x700
[  442.213880][ T6006]  ? __pfx_kill_f2fs_super+0x10/0x10
[  442.213931][ T6006]  ? call_rcu+0x64b/0x8b0
[  442.213943][ T6006]  ? lockdep_hardirqs_on+0x7a/0x110
[  442.213969][ T6006]  deactivate_locked_super+0xbc/0x110
[  442.213990][ T6006]  cleanup_mnt+0x3d3/0x460
[  442.214007][ T6006]  task_work_run+0x1d9/0x270
[  442.214030][ T6006]  ? __pfx_task_work_run+0x10/0x10
[  442.214053][ T6006]  exit_to_user_mode_loop+0x1fa/0x730
[  442.214070][ T6006]  ? rcu_is_watching+0x15/0xb0
[  442.214087][ T6006]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  442.214101][ T6006]  do_syscall_64+0x353/0x580
[  442.214116][ T6006]  ? trace_irq_disable+0x3b/0x140
[  442.214136][ T6006]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  442.214148][ T6006] RIP: 0033:0x7f6fa019f257
[  442.214162][ T6006] Code: a2 c7 05 9c 44 25 00 00 00 00 00 eb 96 e8 e1 12 00 00 90 31 f6 e9 09 00 00 00 66 0f 1f 84 00 00 00 00 00 b8 a6 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 01 c3 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8
[  442.214179][ T6006] RSP: 002b:00007ffe2d65f5b8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
[  442.214195][ T6006] RAX: 0000000000000000 RBX: 00007f6fa023445c RCX: 00007f6fa019f257
[  442.214202][ T6006] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffe2d65f670
[  442.214209][ T6006] RBP: 00007ffe2d65f670 R08: 00007ffe2d660670 R09: 00000000ffffffff
[  442.214218][ T6006] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffe2d660700
[  442.214225][ T6006] R13: 00007f6fa023445c R14: 000000000006becf R15: 00007ffe2d660740
[  442.214248][ T6006]  </TASK>
[  442.341638][ T6006] F2FS-fs (loop2): Stopped filesystem due to reason: 3
[  442.436957][T10107] set_capacity_and_notify: 5 callbacks suppressed
[  442.436974][T10107] loop1: detected capacity change from 0 to 40427
[  442.450604][T10107] F2FS-fs (loop1): Small segment_count (9 < 1 * 24)
[  442.453174][T10107] F2FS-fs (loop1): Can't find valid F2FS filesystem in 1th superblock
[  442.515868][ T5736] loop2: lost filesystem error report for type 5 error -108
[  442.587820][T10107] F2FS-fs (loop1): f2fs_recover_fsync_data: recovery fsync data, check_only: 0
[  442.615498][T10107] F2FS-fs (loop1): Try to recover 1th superblock, ret: 0
[  442.624529][T10107] F2FS-fs (loop1): Mounted with checkpoint version = 48b305e5
[  442.649632][ T6009] CPU: 0 UID: 0 PID: 6009 Comm: syz-executor Not tainted syzkaller #0 PREEMPT(full) 
[  442.649651][ T6009] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
[  442.649660][ T6009] Call Trace:
[  442.649666][ T6009]  <TASK>
[  442.649671][ T6009]  dump_stack_lvl+0xe8/0x150
[  442.649694][ T6009]  f2fs_stop_checkpoint+0x3f6/0x5d0
[  442.649713][ T6009]  f2fs_write_end_io+0x124b/0x1710
[  442.649742][ T6009]  __submit_merged_bio+0x258/0x6a0
[  442.649756][ T6009]  ? rcu_is_watching+0x15/0xb0
[  442.649777][ T6009]  __submit_merged_write_cond+0x3c9/0x4e0
[  442.649796][ T6009]  ? __pfx___submit_merged_write_cond+0x10/0x10
[  442.649825][ T6009]  f2fs_write_data_pages+0x2a27/0x36f0
[  442.649840][ T6009]  ? __lock_acquire+0x683/0x2cf0
[  442.649875][ T6009]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  442.649944][ T6009]  ? __pfx_hlock_conflict+0x10/0x10
[  442.649956][ T6009]  ? __bfs+0x153/0x290
[  442.649970][ T6009]  ? __pfx_hlock_conflict+0x10/0x10
[  442.649991][ T6009]  ? lockdep_unlock+0x5d/0xd0
[  442.650003][ T6009]  ? __lock_acquire+0x13e8/0x2cf0
[  442.650033][ T6009]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  442.650050][ T6009]  do_writepages+0x338/0x560
[  442.650073][ T6009]  ? do_raw_spin_unlock+0x4d/0x210
[  442.650088][ T6009]  filemap_fdatawrite+0x1e9/0x2f0
[  442.650108][ T6009]  ? __pfx_filemap_fdatawrite+0x10/0x10
[  442.650147][ T6009]  ? do_raw_spin_unlock+0x4d/0x210
[  442.650164][ T6009]  f2fs_sync_dirty_inodes+0x30e/0x830
[  442.650189][ T6009]  f2fs_write_checkpoint+0xa3d/0x2710
[  442.650224][ T6009]  ? __pfx_f2fs_write_checkpoint+0x10/0x10
[  442.650270][ T6009]  kill_f2fs_super+0x2dd/0x700
[  442.650292][ T6009]  ? __pfx_kill_f2fs_super+0x10/0x10
[  442.650316][ T6009]  ? call_rcu+0x64b/0x8b0
[  442.650326][ T6009]  ? lockdep_hardirqs_on+0x7a/0x110
[  442.650348][ T6009]  deactivate_locked_super+0xbc/0x110
[  442.650366][ T6009]  cleanup_mnt+0x3d3/0x460
[  442.650381][ T6009]  task_work_run+0x1d9/0x270
[  442.650400][ T6009]  ? __pfx_task_work_run+0x10/0x10
[  442.650421][ T6009]  exit_to_user_mode_loop+0x1fa/0x730
[  442.650436][ T6009]  ? rcu_is_watching+0x15/0xb0
[  442.650453][ T6009]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  442.650465][ T6009]  do_syscall_64+0x353/0x580
[  442.650479][ T6009]  ? trace_irq_disable+0x3b/0x140
[  442.650496][ T6009]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  442.650509][ T6009] RIP: 0033:0x7f8d2739f257
[  442.650520][ T6009] Code: a2 c7 05 9c 44 25 00 00 00 00 00 eb 96 e8 e1 12 00 00 90 31 f6 e9 09 00 00 00 66 0f 1f 84 00 00 00 00 00 b8 a6 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 01 c3 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8
[  442.650531][ T6009] RSP: 002b:00007ffe58d729a8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
[  442.650544][ T6009] RAX: 0000000000000000 RBX: 00007f8d2743445c RCX: 00007f8d2739f257
[  442.650551][ T6009] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffe58d72a60
[  442.650560][ T6009] RBP: 00007ffe58d72a60 R08: 00007ffe58d73a60 R09: 00000000ffffffff
[  442.650567][ T6009] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffe58d73af0
[  442.650574][ T6009] R13: 00007f8d2743445c R14: 000000000006c087 R15: 00007ffe58d73b30
[  442.650593][ T6009]  </TASK>
[  442.650599][ T6009] F2FS-fs (loop1): Stopped filesystem due to reason: 3
[  442.753312][T10111] loop0: detected capacity change from 0 to 40427
[  442.795804][T10111] F2FS-fs (loop0): Small segment_count (9 < 1 * 24)
[  442.804773][T10111] F2FS-fs (loop0): Can't find valid F2FS filesystem in 1th superblock
[  442.958457][T10111] F2FS-fs (loop0): f2fs_recover_fsync_data: recovery fsync data, check_only: 0
[  442.965014][T10111] F2FS-fs (loop0): Try to recover 1th superblock, ret: 0
[  442.967820][T10111] F2FS-fs (loop0): Mounted with checkpoint version = 48b305e5
[  442.992160][ T6004] CPU: 1 UID: 0 PID: 6004 Comm: syz-executor Not tainted syzkaller #0 PREEMPT(full) 
[  442.992184][ T6004] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
[  442.992193][ T6004] Call Trace:
[  442.992199][ T6004]  <TASK>
[  442.992206][ T6004]  dump_stack_lvl+0xe8/0x150
[  442.992232][ T6004]  f2fs_stop_checkpoint+0x3f6/0x5d0
[  442.992255][ T6004]  f2fs_write_end_io+0x124b/0x1710
[  442.992286][ T6004]  __submit_merged_bio+0x258/0x6a0
[  442.992300][ T6004]  ? rcu_is_watching+0x15/0xb0
[  442.992322][ T6004]  __submit_merged_write_cond+0x3c9/0x4e0
[  442.992341][ T6004]  ? __pfx___submit_merged_write_cond+0x10/0x10
[  442.992371][ T6004]  f2fs_write_data_pages+0x2a27/0x36f0
[  442.992386][ T6004]  ? __lock_acquire+0x683/0x2cf0
[  442.992423][ T6004]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  442.992468][ T6004]  ? __pfx_hlock_conflict+0x10/0x10
[  442.992479][ T6004]  ? __bfs+0x153/0x290
[  442.992493][ T6004]  ? __pfx_hlock_conflict+0x10/0x10
[  442.992517][ T6004]  ? lockdep_unlock+0x5d/0xd0
[  442.992529][ T6004]  ? __lock_acquire+0x13e8/0x2cf0
[  442.992561][ T6004]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  442.992578][ T6004]  do_writepages+0x338/0x560
[  442.992602][ T6004]  ? do_raw_spin_unlock+0x4d/0x210
[  442.992619][ T6004]  filemap_fdatawrite+0x1e9/0x2f0
[  442.992639][ T6004]  ? __pfx_filemap_fdatawrite+0x10/0x10
[  442.992681][ T6004]  ? do_raw_spin_unlock+0x4d/0x210
[  442.992697][ T6004]  f2fs_sync_dirty_inodes+0x30e/0x830
[  442.992724][ T6004]  f2fs_write_checkpoint+0xa3d/0x2710
[  442.992762][ T6004]  ? __pfx_f2fs_write_checkpoint+0x10/0x10
[  442.992814][ T6004]  kill_f2fs_super+0x2dd/0x700
[  442.992837][ T6004]  ? __pfx_kill_f2fs_super+0x10/0x10
[  442.992862][ T6004]  ? call_rcu+0x64b/0x8b0
[  442.992873][ T6004]  ? lockdep_hardirqs_on+0x7a/0x110
[  442.992925][ T6004]  deactivate_locked_super+0xbc/0x110
[  442.992947][ T6004]  cleanup_mnt+0x3d3/0x460
[  442.992964][ T6004]  task_work_run+0x1d9/0x270
[  442.992984][ T6004]  ? __pfx_task_work_run+0x10/0x10
[  442.993008][ T6004]  exit_to_user_mode_loop+0x1fa/0x730
[  442.993043][ T6004]  ? rcu_is_watching+0x15/0xb0
[  442.993062][ T6004]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  442.993076][ T6004]  do_syscall_64+0x353/0x580
[  442.993090][ T6004]  ? trace_irq_disable+0x3b/0x140
[  442.993110][ T6004]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  442.993121][ T6004] RIP: 0033:0x7f437b79f257
[  442.993134][ T6004] Code: a2 c7 05 9c 44 25 00 00 00 00 00 eb 96 e8 e1 12 00 00 90 31 f6 e9 09 00 00 00 66 0f 1f 84 00 00 00 00 00 b8 a6 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 01 c3 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8
[  442.993146][ T6004] RSP: 002b:00007fff3d965688 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
[  442.993166][ T6004] RAX: 0000000000000000 RBX: 00007f437b83445c RCX: 00007f437b79f257
[  442.993174][ T6004] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007fff3d965740
[  442.993181][ T6004] RBP: 00007fff3d965740 R08: 00007fff3d966740 R09: 00000000ffffffff
[  442.993189][ T6004] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fff3d9667d0
[  442.993197][ T6004] R13: 00007f437b83445c R14: 000000000006c1de R15: 00007fff3d966810
[  442.993217][ T6004]  </TASK>
[  442.994474][ T6004] F2FS-fs (loop0): Stopped filesystem due to reason: 3
[  443.126304][T10115] loop2: detected capacity change from 0 to 40427
[  443.131157][T10115] F2FS-fs (loop2): Small segment_count (9 < 1 * 24)
[  443.136350][T10115] F2FS-fs (loop2): Can't find valid F2FS filesystem in 1th superblock
[  443.264204][T10115] F2FS-fs (loop2): f2fs_recover_fsync_data: recovery fsync data, check_only: 0
[  443.274540][T10115] F2FS-fs (loop2): Try to recover 1th superblock, ret: 0
[  443.282700][T10115] F2FS-fs (loop2): Mounted with checkpoint version = 48b305e5
[  443.294733][   T33] kauditd_printk_skb: 20 callbacks suppressed
[  443.294747][   T33] audit: type=1800 audit(1785887278.842:1950): pid=10115 uid=0 auid=4294967295 ses=4294967295 subj=unconfined op=collect_data cause=failed(directio) comm="syz.2.991" name="file1" dev="loop2" ino=10 res=0 errno=0
[  443.306687][   T33] audit: type=1800 audit(1785887278.852:1951): pid=10115 uid=0 auid=4294967295 ses=4294967295 subj=unconfined op=collect_data cause=failed(directio) comm="syz.2.991" name="file1" dev="loop2" ino=10 res=0 errno=0
[  443.337039][T10115] bio_check_eod: 35 callbacks suppressed
[  443.337058][T10115] syz.2.991: attempt to access beyond end of device
[  443.337058][T10115] loop2: rw=2049, sector=53248, nr_sectors = 976 limit=40427
[  443.355810][T10115] syz.2.991: attempt to access beyond end of device
[  443.355810][T10115] loop2: rw=8423425, sector=54224, nr_sectors = 8 limit=40427
[  443.382525][ T6006] syz-executor: attempt to access beyond end of device
[  443.382525][ T6006] loop2: rw=2049, sector=45096, nr_sectors = 8 limit=40427
[  443.406372][ T6006] CPU: 0 UID: 0 PID: 6006 Comm: syz-executor Not tainted syzkaller #0 PREEMPT(full) 
[  443.406393][ T6006] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
[  443.406401][ T6006] Call Trace:
[  443.406407][ T6006]  <TASK>
[  443.406413][ T6006]  dump_stack_lvl+0xe8/0x150
[  443.406436][ T6006]  f2fs_stop_checkpoint+0x3f6/0x5d0
[  443.406455][ T6006]  f2fs_write_end_io+0x124b/0x1710
[  443.406484][ T6006]  __submit_merged_bio+0x258/0x6a0
[  443.406499][ T6006]  ? rcu_is_watching+0x15/0xb0
[  443.406519][ T6006]  __submit_merged_write_cond+0x3c9/0x4e0
[  443.406539][ T6006]  ? __pfx___submit_merged_write_cond+0x10/0x10
[  443.406568][ T6006]  f2fs_write_data_pages+0x2a27/0x36f0
[  443.406584][ T6006]  ? __lock_acquire+0x683/0x2cf0
[  443.406626][ T6006]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  443.406670][ T6006]  ? __pfx_hlock_conflict+0x10/0x10
[  443.406680][ T6006]  ? __bfs+0x153/0x290
[  443.406693][ T6006]  ? __pfx_hlock_conflict+0x10/0x10
[  443.406715][ T6006]  ? lockdep_unlock+0x5d/0xd0
[  443.406728][ T6006]  ? __lock_acquire+0x13e8/0x2cf0
[  443.406760][ T6006]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  443.406776][ T6006]  do_writepages+0x338/0x560
[  443.406799][ T6006]  ? do_raw_spin_unlock+0x4d/0x210
[  443.406815][ T6006]  filemap_fdatawrite+0x1e9/0x2f0
[  443.406833][ T6006]  ? __pfx_filemap_fdatawrite+0x10/0x10
[  443.406877][ T6006]  ? do_raw_spin_unlock+0x4d/0x210
[  443.406918][ T6006]  f2fs_sync_dirty_inodes+0x30e/0x830
[  443.406944][ T6006]  f2fs_write_checkpoint+0xa3d/0x2710
[  443.406975][ T6006]  ? __pfx_f2fs_write_checkpoint+0x10/0x10
[  443.407017][ T6006]  kill_f2fs_super+0x2dd/0x700
[  443.407040][ T6006]  ? __pfx_kill_f2fs_super+0x10/0x10
[  443.407062][ T6006]  ? call_rcu+0x64b/0x8b0
[  443.407073][ T6006]  ? lockdep_hardirqs_on+0x7a/0x110
[  443.407095][ T6006]  deactivate_locked_super+0xbc/0x110
[  443.407114][ T6006]  cleanup_mnt+0x3d3/0x460
[  443.407130][ T6006]  task_work_run+0x1d9/0x270
[  443.407150][ T6006]  ? __pfx_task_work_run+0x10/0x10
[  443.407173][ T6006]  exit_to_user_mode_loop+0x1fa/0x730
[  443.407188][ T6006]  ? rcu_is_watching+0x15/0xb0
[  443.407205][ T6006]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  443.407219][ T6006]  do_syscall_64+0x353/0x580
[  443.407232][ T6006]  ? trace_irq_disable+0x3b/0x140
[  443.407251][ T6006]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  443.407263][ T6006] RIP: 0033:0x7f6fa019f257
[  443.407275][ T6006] Code: a2 c7 05 9c 44 25 00 00 00 00 00 eb 96 e8 e1 12 00 00 90 31 f6 e9 09 00 00 00 66 0f 1f 84 00 00 00 00 00 b8 a6 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 01 c3 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8
[  443.407286][ T6006] RSP: 002b:00007ffe2d65f5b8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
[  443.407301][ T6006] RAX: 0000000000000000 RBX: 00007f6fa023445c RCX: 00007f6fa019f257
[  443.407309][ T6006] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffe2d65f670
[  443.407316][ T6006] RBP: 00007ffe2d65f670 R08: 00007ffe2d660670 R09: 00000000ffffffff
[  443.407324][ T6006] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffe2d660700
[  443.407331][ T6006] R13: 00007f6fa023445c R14: 000000000006c369 R15: 00007ffe2d660740
[  443.407350][ T6006]  </TASK>
[  443.407355][ T6006] F2FS-fs (loop2): Stopped filesystem due to reason: 3
[  443.563464][T10119] loop1: detected capacity change from 0 to 40427
[  443.583534][T10119] F2FS-fs (loop1): Small segment_count (9 < 1 * 24)
[  443.586881][T10119] F2FS-fs (loop1): Can't find valid F2FS filesystem in 1th superblock
[  443.702784][T10119] F2FS-fs (loop1): f2fs_recover_fsync_data: recovery fsync data, check_only: 0
[  443.720868][T10119] F2FS-fs (loop1): Try to recover 1th superblock, ret: 0
[  443.731946][T10119] F2FS-fs (loop1): Mounted with checkpoint version = 48b305e5
[  443.737498][   T33] audit: type=1800 audit(1785887279.282:1952): pid=10119 uid=0 auid=4294967295 ses=4294967295 subj=unconfined op=collect_data cause=failed(directio) comm="syz.1.992" name="file1" dev="loop1" ino=10 res=0 errno=0
[  443.753335][T10123] loop0: detected capacity change from 0 to 40427
[  443.756069][   T33] audit: type=1800 audit(1785887279.292:1953): pid=10119 uid=0 auid=4294967295 ses=4294967295 subj=unconfined op=collect_data cause=failed(directio) comm="syz.1.992" name="file1" dev="loop1" ino=10 res=0 errno=0
[  443.767011][T10119] syz.1.992: attempt to access beyond end of device
[  443.767011][T10119] loop1: rw=2049, sector=53248, nr_sectors = 976 limit=40427
[  443.768399][T10123] F2FS-fs (loop0): Small segment_count (9 < 1 * 24)
[  443.782160][T10119] syz.1.992: attempt to access beyond end of device
[  443.782160][T10119] loop1: rw=8423425, sector=54224, nr_sectors = 8 limit=40427
[  443.794278][T10123] F2FS-fs (loop0): Can't find valid F2FS filesystem in 1th superblock
[  443.811717][ T6009] syz-executor: attempt to access beyond end of device
[  443.811717][ T6009] loop1: rw=2049, sector=45096, nr_sectors = 8 limit=40427
[  443.826575][ T6009] CPU: 0 UID: 0 PID: 6009 Comm: syz-executor Not tainted syzkaller #0 PREEMPT(full) 
[  443.826594][ T6009] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
[  443.826602][ T6009] Call Trace:
[  443.826608][ T6009]  <TASK>
[  443.826614][ T6009]  dump_stack_lvl+0xe8/0x150
[  443.826639][ T6009]  f2fs_stop_checkpoint+0x3f6/0x5d0
[  443.826660][ T6009]  f2fs_write_end_io+0x124b/0x1710
[  443.826690][ T6009]  __submit_merged_bio+0x258/0x6a0
[  443.826706][ T6009]  ? rcu_is_watching+0x15/0xb0
[  443.826728][ T6009]  __submit_merged_write_cond+0x3c9/0x4e0
[  443.826745][ T6009]  ? __pfx___submit_merged_write_cond+0x10/0x10
[  443.826774][ T6009]  f2fs_write_data_pages+0x2a27/0x36f0
[  443.826791][ T6009]  ? __lock_acquire+0x683/0x2cf0
[  443.826829][ T6009]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  443.826877][ T6009]  ? __pfx_hlock_conflict+0x10/0x10
[  443.826917][ T6009]  ? __bfs+0x153/0x290
[  443.826932][ T6009]  ? __pfx_hlock_conflict+0x10/0x10
[  443.826974][ T6009]  ? lockdep_unlock+0x5d/0xd0
[  443.826987][ T6009]  ? __lock_acquire+0x13e8/0x2cf0
[  443.827029][ T6009]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  443.827046][ T6009]  do_writepages+0x338/0x560
[  443.827072][ T6009]  ? do_raw_spin_unlock+0x4d/0x210
[  443.827089][ T6009]  filemap_fdatawrite+0x1e9/0x2f0
[  443.827108][ T6009]  ? __pfx_filemap_fdatawrite+0x10/0x10
[  443.827154][ T6009]  ? do_raw_spin_unlock+0x4d/0x210
[  443.827172][ T6009]  f2fs_sync_dirty_inodes+0x30e/0x830
[  443.827199][ T6009]  f2fs_write_checkpoint+0xa3d/0x2710
[  443.827238][ T6009]  ? __pfx_f2fs_write_checkpoint+0x10/0x10
[  443.827292][ T6009]  kill_f2fs_super+0x2dd/0x700
[  443.827315][ T6009]  ? __pfx_kill_f2fs_super+0x10/0x10
[  443.827340][ T6009]  ? call_rcu+0x64b/0x8b0
[  443.827353][ T6009]  ? lockdep_hardirqs_on+0x7a/0x110
[  443.827376][ T6009]  deactivate_locked_super+0xbc/0x110
[  443.827395][ T6009]  cleanup_mnt+0x3d3/0x460
[  443.827412][ T6009]  task_work_run+0x1d9/0x270
[  443.827432][ T6009]  ? __pfx_task_work_run+0x10/0x10
[  443.827456][ T6009]  exit_to_user_mode_loop+0x1fa/0x730
[  443.827472][ T6009]  ? rcu_is_watching+0x15/0xb0
[  443.827489][ T6009]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  443.827503][ T6009]  do_syscall_64+0x353/0x580
[  443.827516][ T6009]  ? trace_irq_disable+0x3b/0x140
[  443.827535][ T6009]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  443.827548][ T6009] RIP: 0033:0x7f8d2739f257
[  443.827561][ T6009] Code: a2 c7 05 9c 44 25 00 00 00 00 00 eb 96 e8 e1 12 00 00 90 31 f6 e9 09 00 00 00 66 0f 1f 84 00 00 00 00 00 b8 a6 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 01 c3 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8
[  443.827570][ T6009] RSP: 002b:00007ffe58d729a8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
[  443.827586][ T6009] RAX: 0000000000000000 RBX: 00007f8d2743445c RCX: 00007f8d2739f257
[  443.827594][ T6009] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffe58d72a60
[  443.827602][ T6009] RBP: 00007ffe58d72a60 R08: 00007ffe58d73a60 R09: 00000000ffffffff
[  443.827610][ T6009] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffe58d73af0
[  443.827616][ T6009] R13: 00007f8d2743445c R14: 000000000006c511 R15: 00007ffe58d73b30
[  443.827637][ T6009]  </TASK>
[  443.864747][T10123] F2FS-fs (loop0): f2fs_recover_fsync_data: recovery fsync data, check_only: 0
[  443.868043][ T6009] F2FS-fs (loop1): Stopped filesystem due to reason: 3
[  443.879094][T10123] F2FS-fs (loop0): Try to recover 1th superblock, ret: 0
[  443.975657][T10123] F2FS-fs (loop0): Mounted with checkpoint version = 48b305e5
[  443.992295][   T33] audit: type=1800 audit(1785887279.542:1954): pid=10123 uid=0 auid=4294967295 ses=4294967295 subj=unconfined op=collect_data cause=failed(directio) comm="syz.0.993" name="file1" dev="loop0" ino=10 res=0 errno=0
[  444.003102][   T33] audit: type=1800 audit(1785887279.542:1955): pid=10123 uid=0 auid=4294967295 ses=4294967295 subj=unconfined op=collect_data cause=failed(directio) comm="syz.0.993" name="file1" dev="loop0" ino=10 res=0 errno=0
[  444.028555][T10123] syz.0.993: attempt to access beyond end of device
[  444.028555][T10123] loop0: rw=2049, sector=53248, nr_sectors = 976 limit=40427
[  444.035719][T10123] syz.0.993: attempt to access beyond end of device
[  444.035719][T10123] loop0: rw=8423425, sector=54224, nr_sectors = 8 limit=40427
[  444.048786][ T6004] syz-executor: attempt to access beyond end of device
[  444.048786][ T6004] loop0: rw=2049, sector=45096, nr_sectors = 8 limit=40427
[  444.071404][ T6004] CPU: 0 UID: 0 PID: 6004 Comm: syz-executor Not tainted syzkaller #0 PREEMPT(full) 
[  444.071425][ T6004] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
[  444.071432][ T6004] Call Trace:
[  444.071439][ T6004]  <TASK>
[  444.071446][ T6004]  dump_stack_lvl+0xe8/0x150
[  444.071468][ T6004]  f2fs_stop_checkpoint+0x3f6/0x5d0
[  444.071487][ T6004]  f2fs_write_end_io+0x124b/0x1710
[  444.071515][ T6004]  __submit_merged_bio+0x258/0x6a0
[  444.071531][ T6004]  ? rcu_is_watching+0x15/0xb0
[  444.071553][ T6004]  __submit_merged_write_cond+0x3c9/0x4e0
[  444.071574][ T6004]  ? __pfx___submit_merged_write_cond+0x10/0x10
[  444.071603][ T6004]  f2fs_write_data_pages+0x2a27/0x36f0
[  444.071620][ T6004]  ? __lock_acquire+0x683/0x2cf0
[  444.071656][ T6004]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  444.071698][ T6004]  ? __pfx_hlock_conflict+0x10/0x10
[  444.071709][ T6004]  ? __bfs+0x153/0x290
[  444.071723][ T6004]  ? __pfx_hlock_conflict+0x10/0x10
[  444.071745][ T6004]  ? lockdep_unlock+0x5d/0xd0
[  444.071759][ T6004]  ? __lock_acquire+0x13e8/0x2cf0
[  444.071789][ T6004]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  444.071806][ T6004]  do_writepages+0x338/0x560
[  444.071829][ T6004]  ? do_raw_spin_unlock+0x4d/0x210
[  444.071846][ T6004]  filemap_fdatawrite+0x1e9/0x2f0
[  444.071864][ T6004]  ? __pfx_filemap_fdatawrite+0x10/0x10
[  444.071935][ T6004]  ? do_raw_spin_unlock+0x4d/0x210
[  444.071953][ T6004]  f2fs_sync_dirty_inodes+0x30e/0x830
[  444.071979][ T6004]  f2fs_write_checkpoint+0xa3d/0x2710
[  444.072022][ T6004]  ? __pfx_f2fs_write_checkpoint+0x10/0x10
[  444.072071][ T6004]  kill_f2fs_super+0x2dd/0x700
[  444.072094][ T6004]  ? __pfx_kill_f2fs_super+0x10/0x10
[  444.072117][ T6004]  ? call_rcu+0x64b/0x8b0
[  444.072129][ T6004]  ? lockdep_hardirqs_on+0x7a/0x110
[  444.072152][ T6004]  deactivate_locked_super+0xbc/0x110
[  444.072171][ T6004]  cleanup_mnt+0x3d3/0x460
[  444.072187][ T6004]  task_work_run+0x1d9/0x270
[  444.072206][ T6004]  ? __pfx_task_work_run+0x10/0x10
[  444.072230][ T6004]  exit_to_user_mode_loop+0x1fa/0x730
[  444.072245][ T6004]  ? rcu_is_watching+0x15/0xb0
[  444.072261][ T6004]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  444.072275][ T6004]  do_syscall_64+0x353/0x580
[  444.072288][ T6004]  ? trace_irq_disable+0x3b/0x140
[  444.072306][ T6004]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  444.072318][ T6004] RIP: 0033:0x7f437b79f257
[  444.072350][ T6004] Code: a2 c7 05 9c 44 25 00 00 00 00 00 eb 96 e8 e1 12 00 00 90 31 f6 e9 09 00 00 00 66 0f 1f 84 00 00 00 00 00 b8 a6 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 01 c3 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8
[  444.072361][ T6004] RSP: 002b:00007fff3d965688 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
[  444.072375][ T6004] RAX: 0000000000000000 RBX: 00007f437b83445c RCX: 00007f437b79f257
[  444.072382][ T6004] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007fff3d965740
[  444.072391][ T6004] RBP: 00007fff3d965740 R08: 00007fff3d966740 R09: 00000000ffffffff
[  444.072398][ T6004] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fff3d9667d0
[  444.072405][ T6004] R13: 00007f437b83445c R14: 000000000006c601 R15: 00007fff3d966810
[  444.072425][ T6004]  </TASK>
[  444.197495][ T6004] F2FS-fs (loop0): Stopped filesystem due to reason: 3
2026/08/04 23:47:59 executed programs: 985
[  444.339638][T10129] loop2: detected capacity change from 0 to 40427
[  444.361119][T10129] F2FS-fs (loop2): Small segment_count (9 < 1 * 24)
[  444.375576][T10129] F2FS-fs (loop2): Can't find valid F2FS filesystem in 1th superblock
[  444.475358][T10129] F2FS-fs (loop2): f2fs_recover_fsync_data: recovery fsync data, check_only: 0
[  444.487333][T10129] F2FS-fs (loop2): Try to recover 1th superblock, ret: 0
[  444.494502][T10129] F2FS-fs (loop2): Mounted with checkpoint version = 48b305e5
[  444.504006][   T33] audit: type=1800 audit(1785887280.042:1956): pid=10129 uid=0 auid=4294967295 ses=4294967295 subj=unconfined op=collect_data cause=failed(directio) comm="syz.2.994" name="file1" dev="loop2" ino=10 res=0 errno=0
[  444.517679][   T33] audit: type=1800 audit(1785887280.042:1957): pid=10129 uid=0 auid=4294967295 ses=4294967295 subj=unconfined op=collect_data cause=failed(directio) comm="syz.2.994" name="file1" dev="loop2" ino=10 res=0 errno=0
[  444.522628][T10129] syz.2.994: attempt to access beyond end of device
[  444.522628][T10129] loop2: rw=2049, sector=53248, nr_sectors = 976 limit=40427
[  444.539285][ T6006] CPU: 0 UID: 0 PID: 6006 Comm: syz-executor Not tainted syzkaller #0 PREEMPT(full) 
[  444.539305][ T6006] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
[  444.539313][ T6006] Call Trace:
[  444.539318][ T6006]  <TASK>
[  444.539324][ T6006]  dump_stack_lvl+0xe8/0x150
[  444.539348][ T6006]  f2fs_stop_checkpoint+0x3f6/0x5d0
[  444.539368][ T6006]  f2fs_write_end_io+0x124b/0x1710
[  444.539398][ T6006]  __submit_merged_bio+0x258/0x6a0
[  444.539413][ T6006]  ? rcu_is_watching+0x15/0xb0
[  444.539434][ T6006]  __submit_merged_write_cond+0x3c9/0x4e0
[  444.539455][ T6006]  ? __pfx___submit_merged_write_cond+0x10/0x10
[  444.539484][ T6006]  f2fs_write_data_pages+0x2a27/0x36f0
[  444.539500][ T6006]  ? __lock_acquire+0x683/0x2cf0
[  444.539535][ T6006]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  444.539578][ T6006]  ? __pfx_hlock_conflict+0x10/0x10
[  444.539590][ T6006]  ? __bfs+0x153/0x290
[  444.539603][ T6006]  ? __pfx_hlock_conflict+0x10/0x10
[  444.539625][ T6006]  ? lockdep_unlock+0x5d/0xd0
[  444.539639][ T6006]  ? __lock_acquire+0x13e8/0x2cf0
[  444.539669][ T6006]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  444.539687][ T6006]  do_writepages+0x338/0x560
[  444.539710][ T6006]  ? do_raw_spin_unlock+0x4d/0x210
[  444.539726][ T6006]  filemap_fdatawrite+0x1e9/0x2f0
[  444.539744][ T6006]  ? __pfx_filemap_fdatawrite+0x10/0x10
[  444.539807][ T6006]  ? do_raw_spin_unlock+0x4d/0x210
[  444.539825][ T6006]  f2fs_sync_dirty_inodes+0x30e/0x830
[  444.539851][ T6006]  f2fs_write_checkpoint+0xa3d/0x2710
[  444.539912][ T6006]  ? __pfx_f2fs_write_checkpoint+0x10/0x10
[  444.539963][ T6006]  kill_f2fs_super+0x2dd/0x700
[  444.539986][ T6006]  ? __pfx_kill_f2fs_super+0x10/0x10
[  444.540010][ T6006]  ? call_rcu+0x64b/0x8b0
[  444.540027][ T6006]  ? lockdep_hardirqs_on+0x7a/0x110
[  444.540051][ T6006]  deactivate_locked_super+0xbc/0x110
[  444.540069][ T6006]  cleanup_mnt+0x3d3/0x460
[  444.540085][ T6006]  task_work_run+0x1d9/0x270
[  444.540105][ T6006]  ? __pfx_task_work_run+0x10/0x10
[  444.540127][ T6006]  exit_to_user_mode_loop+0x1fa/0x730
[  444.540142][ T6006]  ? rcu_is_watching+0x15/0xb0
[  444.540160][ T6006]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  444.540173][ T6006]  do_syscall_64+0x353/0x580
[  444.540186][ T6006]  ? trace_irq_disable+0x3b/0x140
[  444.540204][ T6006]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  444.540216][ T6006] RIP: 0033:0x7f6fa019f257
[  444.540229][ T6006] Code: a2 c7 05 9c 44 25 00 00 00 00 00 eb 96 e8 e1 12 00 00 90 31 f6 e9 09 00 00 00 66 0f 1f 84 00 00 00 00 00 b8 a6 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 01 c3 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8
[  444.540238][ T6006] RSP: 002b:00007ffe2d65f5b8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
[  444.540253][ T6006] RAX: 0000000000000000 RBX: 00007f6fa023445c RCX: 00007f6fa019f257
[  444.540261][ T6006] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffe2d65f670
[  444.540268][ T6006] RBP: 00007ffe2d65f670 R08: 00007ffe2d660670 R09: 00000000ffffffff
[  444.540277][ T6006] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffe2d660700
[  444.540284][ T6006] R13: 00007f6fa023445c R14: 000000000006c7d8 R15: 00007ffe2d660740
[  444.540304][ T6006]  </TASK>
[  444.541244][ T6006] F2FS-fs (loop2): Stopped filesystem due to reason: 3
[  444.736472][T10131] loop1: detected capacity change from 0 to 40427
[  444.747724][T10131] F2FS-fs (loop1): Small segment_count (9 < 1 * 24)
[  444.759492][T10131] F2FS-fs (loop1): Can't find valid F2FS filesystem in 1th superblock
[  444.894969][T10131] F2FS-fs (loop1): f2fs_recover_fsync_data: recovery fsync data, check_only: 0
[  444.908996][T10131] F2FS-fs (loop1): Try to recover 1th superblock, ret: 0
[  444.914444][T10131] F2FS-fs (loop1): Mounted with checkpoint version = 48b305e5
[  444.921334][   T33] audit: type=1800 audit(1785887280.462:1958): pid=10131 uid=0 auid=4294967295 ses=4294967295 subj=unconfined op=collect_data cause=failed(directio) comm="syz.1.995" name="file1" dev="loop1" ino=10 res=0 errno=0
[  444.935246][   T33] audit: type=1800 audit(1785887280.482:1959): pid=10131 uid=0 auid=4294967295 ses=4294967295 subj=unconfined op=collect_data cause=failed(directio) comm="syz.1.995" name="file1" dev="loop1" ino=10 res=0 errno=0
[  444.966272][ T6009] CPU: 1 UID: 0 PID: 6009 Comm: syz-executor Not tainted syzkaller #0 PREEMPT(full) 
[  444.966298][ T6009] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
[  444.966307][ T6009] Call Trace:
[  444.966314][ T6009]  <TASK>
[  444.966321][ T6009]  dump_stack_lvl+0xe8/0x150
[  444.966349][ T6009]  f2fs_stop_checkpoint+0x3f6/0x5d0
[  444.966369][ T6009]  f2fs_write_end_io+0x124b/0x1710
[  444.966400][ T6009]  __submit_merged_bio+0x258/0x6a0
[  444.966415][ T6009]  ? rcu_is_watching+0x15/0xb0
[  444.966436][ T6009]  __submit_merged_write_cond+0x3c9/0x4e0
[  444.966456][ T6009]  ? __pfx___submit_merged_write_cond+0x10/0x10
[  444.966485][ T6009]  f2fs_write_data_pages+0x2a27/0x36f0
[  444.966501][ T6009]  ? __lock_acquire+0x683/0x2cf0
[  444.966537][ T6009]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  444.966578][ T6009]  ? __pfx_hlock_conflict+0x10/0x10
[  444.966590][ T6009]  ? __bfs+0x153/0x290
[  444.966602][ T6009]  ? __pfx_hlock_conflict+0x10/0x10
[  444.966623][ T6009]  ? lockdep_unlock+0x5d/0xd0
[  444.966637][ T6009]  ? __lock_acquire+0x13e8/0x2cf0
[  444.966667][ T6009]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  444.966684][ T6009]  do_writepages+0x338/0x560
[  444.966709][ T6009]  ? do_raw_spin_unlock+0x4d/0x210
[  444.966735][ T6009]  filemap_fdatawrite+0x1e9/0x2f0
[  444.966756][ T6009]  ? __pfx_filemap_fdatawrite+0x10/0x10
[  444.966800][ T6009]  ? do_raw_spin_unlock+0x4d/0x210
[  444.966816][ T6009]  f2fs_sync_dirty_inodes+0x30e/0x830
[  444.966843][ T6009]  f2fs_write_checkpoint+0xa3d/0x2710
[  444.966911][ T6009]  ? __pfx_f2fs_write_checkpoint+0x10/0x10
[  444.966963][ T6009]  kill_f2fs_super+0x2dd/0x700
[  444.966985][ T6009]  ? __pfx_kill_f2fs_super+0x10/0x10
[  444.967008][ T6009]  ? call_rcu+0x64b/0x8b0
[  444.967019][ T6009]  ? lockdep_hardirqs_on+0x7a/0x110
[  444.967043][ T6009]  deactivate_locked_super+0xbc/0x110
[  444.967064][ T6009]  cleanup_mnt+0x3d3/0x460
[  444.967080][ T6009]  task_work_run+0x1d9/0x270
[  444.967101][ T6009]  ? __pfx_task_work_run+0x10/0x10
[  444.967143][ T6009]  exit_to_user_mode_loop+0x1fa/0x730
[  444.967162][ T6009]  ? rcu_is_watching+0x15/0xb0
[  444.967180][ T6009]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  444.967193][ T6009]  do_syscall_64+0x353/0x580
[  444.967207][ T6009]  ? trace_irq_disable+0x3b/0x140
[  444.967227][ T6009]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  444.967239][ T6009] RIP: 0033:0x7f8d2739f257
[  444.967252][ T6009] Code: a2 c7 05 9c 44 25 00 00 00 00 00 eb 96 e8 e1 12 00 00 90 31 f6 e9 09 00 00 00 66 0f 1f 84 00 00 00 00 00 b8 a6 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 01 c3 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8
[  444.967264][ T6009] RSP: 002b:00007ffe58d729a8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
[  444.967280][ T6009] RAX: 0000000000000000 RBX: 00007f8d2743445c RCX: 00007f8d2739f257
[  444.967289][ T6009] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffe58d72a60
[  444.967296][ T6009] RBP: 00007ffe58d72a60 R08: 00007ffe58d73a60 R09: 00000000ffffffff
[  444.967304][ T6009] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffe58d73af0
[  444.967312][ T6009] R13: 00007f8d2743445c R14: 000000000006c995 R15: 00007ffe58d73b30
[  444.967332][ T6009]  </TASK>
[  444.967730][ T6009] F2FS-fs (loop1): Stopped filesystem due to reason: 3
[  445.037287][T10135] loop0: detected capacity change from 0 to 40427
[  445.177151][T10135] F2FS-fs (loop0): Small segment_count (9 < 1 * 24)
[  445.180076][T10135] F2FS-fs (loop0): Can't find valid F2FS filesystem in 1th superblock
[  445.260986][T10139] loop2: detected capacity change from 0 to 40427
[  445.270646][T10139] F2FS-fs (loop2): Small segment_count (9 < 1 * 24)
[  445.276777][T10135] F2FS-fs (loop0): f2fs_recover_fsync_data: recovery fsync data, check_only: 0
[  445.280076][T10139] F2FS-fs (loop2): Can't find valid F2FS filesystem in 1th superblock
[  445.291962][T10135] F2FS-fs (loop0): Try to recover 1th superblock, ret: 0
[  445.301347][T10135] F2FS-fs (loop0): Mounted with checkpoint version = 48b305e5
[  445.338006][ T6004] CPU: 1 UID: 0 PID: 6004 Comm: syz-executor Not tainted syzkaller #0 PREEMPT(full) 
[  445.338030][ T6004] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
[  445.338041][ T6004] Call Trace:
[  445.338047][ T6004]  <TASK>
[  445.338053][ T6004]  dump_stack_lvl+0xe8/0x150
[  445.338081][ T6004]  f2fs_stop_checkpoint+0x3f6/0x5d0
[  445.338102][ T6004]  f2fs_write_end_io+0x124b/0x1710
[  445.338132][ T6004]  __submit_merged_bio+0x258/0x6a0
[  445.338147][ T6004]  ? rcu_is_watching+0x15/0xb0
[  445.338171][ T6004]  __submit_merged_write_cond+0x3c9/0x4e0
[  445.338191][ T6004]  ? __pfx___submit_merged_write_cond+0x10/0x10
[  445.338220][ T6004]  f2fs_write_data_pages+0x2a27/0x36f0
[  445.338237][ T6004]  ? __lock_acquire+0x683/0x2cf0
[  445.338273][ T6004]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  445.338316][ T6004]  ? __pfx_hlock_conflict+0x10/0x10
[  445.338328][ T6004]  ? __bfs+0x153/0x290
[  445.338343][ T6004]  ? __pfx_hlock_conflict+0x10/0x10
[  445.338364][ T6004]  ? lockdep_unlock+0x5d/0xd0
[  445.338379][ T6004]  ? __lock_acquire+0x13e8/0x2cf0
[  445.338409][ T6004]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  445.338425][ T6004]  do_writepages+0x338/0x560
[  445.338449][ T6004]  ? do_raw_spin_unlock+0x4d/0x210
[  445.338465][ T6004]  filemap_fdatawrite+0x1e9/0x2f0
[  445.338484][ T6004]  ? __pfx_filemap_fdatawrite+0x10/0x10
[  445.338527][ T6004]  ? do_raw_spin_unlock+0x4d/0x210
[  445.338545][ T6004]  f2fs_sync_dirty_inodes+0x30e/0x830
[  445.338572][ T6004]  f2fs_write_checkpoint+0xa3d/0x2710
[  445.338608][ T6004]  ? __pfx_f2fs_write_checkpoint+0x10/0x10
[  445.338656][ T6004]  kill_f2fs_super+0x2dd/0x700
[  445.338679][ T6004]  ? __pfx_kill_f2fs_super+0x10/0x10
[  445.338702][ T6004]  ? call_rcu+0x64b/0x8b0
[  445.338713][ T6004]  ? lockdep_hardirqs_on+0x7a/0x110
[  445.338745][ T6004]  deactivate_locked_super+0xbc/0x110
[  445.338765][ T6004]  cleanup_mnt+0x3d3/0x460
[  445.338782][ T6004]  task_work_run+0x1d9/0x270
[  445.338803][ T6004]  ? __pfx_task_work_run+0x10/0x10
[  445.338826][ T6004]  exit_to_user_mode_loop+0x1fa/0x730
[  445.338841][ T6004]  ? rcu_is_watching+0x15/0xb0
[  445.338859][ T6004]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  445.338902][ T6004]  do_syscall_64+0x353/0x580
[  445.338916][ T6004]  ? trace_irq_disable+0x3b/0x140
[  445.338936][ T6004]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  445.338948][ T6004] RIP: 0033:0x7f437b79f257
[  445.338961][ T6004] Code: a2 c7 05 9c 44 25 00 00 00 00 00 eb 96 e8 e1 12 00 00 90 31 f6 e9 09 00 00 00 66 0f 1f 84 00 00 00 00 00 b8 a6 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 01 c3 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8
[  445.338972][ T6004] RSP: 002b:00007fff3d965688 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
[  445.338987][ T6004] RAX: 0000000000000000 RBX: 00007f437b83445c RCX: 00007f437b79f257
[  445.338995][ T6004] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007fff3d965740
[  445.339002][ T6004] RBP: 00007fff3d965740 R08: 00007fff3d966740 R09: 00000000ffffffff
[  445.339010][ T6004] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fff3d9667d0
[  445.339018][ T6004] R13: 00007f437b83445c R14: 000000000006cb0d R15: 00007fff3d966810
[  445.339038][ T6004]  </TASK>
[  445.339044][ T6004] F2FS-fs (loop0): Stopped filesystem due to reason: 3
[  445.342803][T10139] F2FS-fs (loop2): f2fs_recover_fsync_data: recovery fsync data, check_only: 0
[  445.479215][T10139] F2FS-fs (loop2): Try to recover 1th superblock, ret: 0
[  445.482169][T10139] F2FS-fs (loop2): Mounted with checkpoint version = 48b305e5
[  445.540029][ T6006] CPU: 1 UID: 0 PID: 6006 Comm: syz-executor Not tainted syzkaller #0 PREEMPT(full) 
[  445.540054][ T6006] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
[  445.540062][ T6006] Call Trace:
[  445.540068][ T6006]  <TASK>
[  445.540074][ T6006]  dump_stack_lvl+0xe8/0x150
[  445.540099][ T6006]  f2fs_stop_checkpoint+0x3f6/0x5d0
[  445.540120][ T6006]  f2fs_write_end_io+0x124b/0x1710
[  445.540150][ T6006]  __submit_merged_bio+0x258/0x6a0
[  445.540166][ T6006]  ? rcu_is_watching+0x15/0xb0
[  445.540188][ T6006]  __submit_merged_write_cond+0x3c9/0x4e0
[  445.540208][ T6006]  ? __pfx___submit_merged_write_cond+0x10/0x10
[  445.540237][ T6006]  f2fs_write_data_pages+0x2a27/0x36f0
[  445.540276][ T6006]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  445.540321][ T6006]  ? __pfx_hlock_conflict+0x10/0x10
[  445.540333][ T6006]  ? __bfs+0x153/0x290
[  445.540347][ T6006]  ? __pfx_hlock_conflict+0x10/0x10
[  445.540368][ T6006]  ? lockdep_unlock+0x5d/0xd0
[  445.540381][ T6006]  ? __lock_acquire+0x13e8/0x2cf0
[  445.540412][ T6006]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  445.540429][ T6006]  do_writepages+0x338/0x560
[  445.540451][ T6006]  ? do_raw_spin_unlock+0x4d/0x210
[  445.540466][ T6006]  filemap_fdatawrite+0x1e9/0x2f0
[  445.540485][ T6006]  ? __pfx_filemap_fdatawrite+0x10/0x10
[  445.540524][ T6006]  ? do_raw_spin_unlock+0x4d/0x210
[  445.540539][ T6006]  f2fs_sync_dirty_inodes+0x30e/0x830
[  445.540561][ T6006]  f2fs_write_checkpoint+0xa3d/0x2710
[  445.540594][ T6006]  ? __pfx_f2fs_write_checkpoint+0x10/0x10
[  445.540639][ T6006]  kill_f2fs_super+0x2dd/0x700
[  445.540661][ T6006]  ? __pfx_kill_f2fs_super+0x10/0x10
[  445.540683][ T6006]  ? call_rcu+0x64b/0x8b0
[  445.540694][ T6006]  ? lockdep_hardirqs_on+0x7a/0x110
[  445.540723][ T6006]  deactivate_locked_super+0xbc/0x110
[  445.540741][ T6006]  cleanup_mnt+0x3d3/0x460
[  445.540757][ T6006]  task_work_run+0x1d9/0x270
[  445.540777][ T6006]  ? __pfx_task_work_run+0x10/0x10
[  445.540799][ T6006]  exit_to_user_mode_loop+0x1fa/0x730
[  445.540815][ T6006]  ? rcu_is_watching+0x15/0xb0
[  445.540833][ T6006]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  445.540846][ T6006]  do_syscall_64+0x353/0x580
[  445.540891][ T6006]  ? trace_irq_disable+0x3b/0x140
[  445.540911][ T6006]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  445.540923][ T6006] RIP: 0033:0x7f6fa019f257
[  445.540938][ T6006] Code: a2 c7 05 9c 44 25 00 00 00 00 00 eb 96 e8 e1 12 00 00 90 31 f6 e9 09 00 00 00 66 0f 1f 84 00 00 00 00 00 b8 a6 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 01 c3 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8
[  445.540948][ T6006] RSP: 002b:00007ffe2d65f5b8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
[  445.540963][ T6006] RAX: 0000000000000000 RBX: 00007f6fa023445c RCX: 00007f6fa019f257
[  445.540971][ T6006] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffe2d65f670
[  445.540979][ T6006] RBP: 00007ffe2d65f670 R08: 00007ffe2d660670 R09: 00000000ffffffff
[  445.540987][ T6006] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffe2d660700
[  445.540995][ T6006] R13: 00007f6fa023445c R14: 000000000006cbbe R15: 00007ffe2d660740
[  445.541014][ T6006]  </TASK>
[  445.543381][ T6006] F2FS-fs (loop2): Stopped filesystem due to reason: 3
[  445.710369][T10145] loop1: detected capacity change from 0 to 40427
[  445.715087][T10145] F2FS-fs (loop1): Small segment_count (9 < 1 * 24)
[  445.717887][T10145] F2FS-fs (loop1): Can't find valid F2FS filesystem in 1th superblock
[  445.783787][T10145] F2FS-fs (loop1): f2fs_recover_fsync_data: recovery fsync data, check_only: 0
[  445.791195][T10145] F2FS-fs (loop1): Try to recover 1th superblock, ret: 0
[  445.794184][T10145] F2FS-fs (loop1): Mounted with checkpoint version = 48b305e5
[  445.847099][ T6009] CPU: 0 UID: 0 PID: 6009 Comm: syz-executor Not tainted syzkaller #0 PREEMPT(full) 
[  445.847122][ T6009] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
[  445.847131][ T6009] Call Trace:
[  445.847137][ T6009]  <TASK>
[  445.847143][ T6009]  dump_stack_lvl+0xe8/0x150
[  445.847167][ T6009]  f2fs_stop_checkpoint+0x3f6/0x5d0
[  445.847187][ T6009]  f2fs_write_end_io+0x124b/0x1710
[  445.847218][ T6009]  __submit_merged_bio+0x258/0x6a0
[  445.847233][ T6009]  ? rcu_is_watching+0x15/0xb0
[  445.847253][ T6009]  __submit_merged_write_cond+0x3c9/0x4e0
[  445.847273][ T6009]  ? __pfx___submit_merged_write_cond+0x10/0x10
[  445.847303][ T6009]  f2fs_write_data_pages+0x2a27/0x36f0
[  445.847319][ T6009]  ? __lock_acquire+0x683/0x2cf0
[  445.847363][ T6009]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  445.847406][ T6009]  ? __pfx_hlock_conflict+0x10/0x10
[  445.847416][ T6009]  ? __bfs+0x153/0x290
[  445.847431][ T6009]  ? __pfx_hlock_conflict+0x10/0x10
[  445.847455][ T6009]  ? lockdep_unlock+0x5d/0xd0
[  445.847468][ T6009]  ? __lock_acquire+0x13e8/0x2cf0
[  445.847501][ T6009]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  445.847519][ T6009]  do_writepages+0x338/0x560
[  445.847544][ T6009]  ? do_raw_spin_unlock+0x4d/0x210
[  445.847559][ T6009]  filemap_fdatawrite+0x1e9/0x2f0
[  445.847579][ T6009]  ? __pfx_filemap_fdatawrite+0x10/0x10
[  445.847625][ T6009]  ? do_raw_spin_unlock+0x4d/0x210
[  445.847641][ T6009]  f2fs_sync_dirty_inodes+0x30e/0x830
[  445.847669][ T6009]  f2fs_write_checkpoint+0xa3d/0x2710
[  445.847707][ T6009]  ? __pfx_f2fs_write_checkpoint+0x10/0x10
[  445.847758][ T6009]  kill_f2fs_super+0x2dd/0x700
[  445.847779][ T6009]  ? __pfx_kill_f2fs_super+0x10/0x10
[  445.847803][ T6009]  ? call_rcu+0x64b/0x8b0
[  445.847814][ T6009]  ? lockdep_hardirqs_on+0x7a/0x110
[  445.847838][ T6009]  deactivate_locked_super+0xbc/0x110
[  445.847884][ T6009]  cleanup_mnt+0x3d3/0x460
[  445.847903][ T6009]  task_work_run+0x1d9/0x270
[  445.847924][ T6009]  ? __pfx_task_work_run+0x10/0x10
[  445.847948][ T6009]  exit_to_user_mode_loop+0x1fa/0x730
[  445.847963][ T6009]  ? rcu_is_watching+0x15/0xb0
[  445.848001][ T6009]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  445.848014][ T6009]  do_syscall_64+0x353/0x580
[  445.848028][ T6009]  ? trace_irq_disable+0x3b/0x140
[  445.848047][ T6009]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  445.848059][ T6009] RIP: 0033:0x7f8d2739f257
[  445.848072][ T6009] Code: a2 c7 05 9c 44 25 00 00 00 00 00 eb 96 e8 e1 12 00 00 90 31 f6 e9 09 00 00 00 66 0f 1f 84 00 00 00 00 00 b8 a6 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 01 c3 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8
[  445.848083][ T6009] RSP: 002b:00007ffe58d729a8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
[  445.848098][ T6009] RAX: 0000000000000000 RBX: 00007f8d2743445c RCX: 00007f8d2739f257
[  445.848108][ T6009] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffe58d72a60
[  445.848115][ T6009] RBP: 00007ffe58d72a60 R08: 00007ffe58d73a60 R09: 00000000ffffffff
[  445.848122][ T6009] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffe58d73af0
[  445.848130][ T6009] R13: 00007f8d2743445c R14: 000000000006ccf4 R15: 00007ffe58d73b30
[  445.848148][ T6009]  </TASK>
[  445.848196][ T6009] F2FS-fs (loop1): Stopped filesystem due to reason: 3
[  446.171997][T10147] F2FS-fs (loop0): Small segment_count (9 < 1 * 24)
[  446.189810][T10147] F2FS-fs (loop0): Can't find valid F2FS filesystem in 1th superblock
[  446.257843][T10147] F2FS-fs (loop0): f2fs_recover_fsync_data: recovery fsync data, check_only: 0
[  446.266528][T10147] F2FS-fs (loop0): Try to recover 1th superblock, ret: 0
[  446.269372][T10147] F2FS-fs (loop0): Mounted with checkpoint version = 48b305e5
[  446.310756][ T6004] CPU: 1 UID: 0 PID: 6004 Comm: syz-executor Not tainted syzkaller #0 PREEMPT(full) 
[  446.310782][ T6004] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
[  446.310790][ T6004] Call Trace:
[  446.310796][ T6004]  <TASK>
[  446.310801][ T6004]  dump_stack_lvl+0xe8/0x150
[  446.310826][ T6004]  f2fs_stop_checkpoint+0x3f6/0x5d0
[  446.310875][ T6004]  f2fs_write_end_io+0x124b/0x1710
[  446.310908][ T6004]  __submit_merged_bio+0x258/0x6a0
[  446.310921][ T6004]  ? rcu_is_watching+0x15/0xb0
[  446.310942][ T6004]  __submit_merged_write_cond+0x3c9/0x4e0
[  446.310963][ T6004]  ? __pfx___submit_merged_write_cond+0x10/0x10
[  446.310991][ T6004]  f2fs_write_data_pages+0x2a27/0x36f0
[  446.311029][ T6004]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  446.311070][ T6004]  ? __pfx_hlock_conflict+0x10/0x10
[  446.311084][ T6004]  ? __bfs+0x153/0x290
[  446.311097][ T6004]  ? __pfx_hlock_conflict+0x10/0x10
[  446.311119][ T6004]  ? lockdep_unlock+0x5d/0xd0
[  446.311133][ T6004]  ? __lock_acquire+0x13e8/0x2cf0
[  446.311163][ T6004]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  446.311181][ T6004]  do_writepages+0x338/0x560
[  446.311204][ T6004]  ? do_raw_spin_unlock+0x4d/0x210
[  446.311220][ T6004]  filemap_fdatawrite+0x1e9/0x2f0
[  446.311239][ T6004]  ? __pfx_filemap_fdatawrite+0x10/0x10
[  446.311280][ T6004]  ? do_raw_spin_unlock+0x4d/0x210
[  446.311303][ T6004]  f2fs_sync_dirty_inodes+0x30e/0x830
[  446.311331][ T6004]  f2fs_write_checkpoint+0xa3d/0x2710
[  446.311367][ T6004]  ? __pfx_f2fs_write_checkpoint+0x10/0x10
[  446.311415][ T6004]  kill_f2fs_super+0x2dd/0x700
[  446.311437][ T6004]  ? __pfx_kill_f2fs_super+0x10/0x10
[  446.311461][ T6004]  ? call_rcu+0x64b/0x8b0
[  446.311472][ T6004]  ? lockdep_hardirqs_on+0x7a/0x110
[  446.311495][ T6004]  deactivate_locked_super+0xbc/0x110
[  446.311514][ T6004]  cleanup_mnt+0x3d3/0x460
[  446.311530][ T6004]  task_work_run+0x1d9/0x270
[  446.311551][ T6004]  ? __pfx_task_work_run+0x10/0x10
[  446.311575][ T6004]  exit_to_user_mode_loop+0x1fa/0x730
[  446.311591][ T6004]  ? rcu_is_watching+0x15/0xb0
[  446.311609][ T6004]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  446.311622][ T6004]  do_syscall_64+0x353/0x580
[  446.311636][ T6004]  ? trace_irq_disable+0x3b/0x140
[  446.311656][ T6004]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  446.311668][ T6004] RIP: 0033:0x7f437b79f257
[  446.311682][ T6004] Code: a2 c7 05 9c 44 25 00 00 00 00 00 eb 96 e8 e1 12 00 00 90 31 f6 e9 09 00 00 00 66 0f 1f 84 00 00 00 00 00 b8 a6 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 01 c3 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8
[  446.311692][ T6004] RSP: 002b:00007fff3d965688 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
[  446.311707][ T6004] RAX: 0000000000000000 RBX: 00007f437b83445c RCX: 00007f437b79f257
[  446.311717][ T6004] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007fff3d965740
[  446.311724][ T6004] RBP: 00007fff3d965740 R08: 00007fff3d966740 R09: 00000000ffffffff
[  446.311731][ T6004] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fff3d9667d0
[  446.311740][ T6004] R13: 00007f437b83445c R14: 000000000006ced5 R15: 00007fff3d966810
[  446.311759][ T6004]  </TASK>
[  446.311765][ T6004] F2FS-fs (loop0): Stopped filesystem due to reason: 3
[  446.560727][T10153] F2FS-fs (loop1): Small segment_count (9 < 1 * 24)
[  446.570160][T10153] F2FS-fs (loop1): Can't find valid F2FS filesystem in 1th superblock
[  446.612378][T10151] F2FS-fs (loop2): Small segment_count (9 < 1 * 24)
[  446.616733][T10151] F2FS-fs (loop2): Can't find valid F2FS filesystem in 1th superblock
[  446.696481][T10153] F2FS-fs (loop1): f2fs_recover_fsync_data: recovery fsync data, check_only: 0
[  446.699581][T10151] F2FS-fs (loop2): f2fs_recover_fsync_data: recovery fsync data, check_only: 0
[  446.707572][T10151] F2FS-fs (loop2): Try to recover 1th superblock, ret: 0
[  446.710610][T10151] F2FS-fs (loop2): Mounted with checkpoint version = 48b305e5
[  446.717653][T10153] F2FS-fs (loop1): Try to recover 1th superblock, ret: 0
[  446.720478][T10153] F2FS-fs (loop1): Mounted with checkpoint version = 48b305e5
[  446.736394][ T6006] CPU: 0 UID: 0 PID: 6006 Comm: syz-executor Not tainted syzkaller #0 PREEMPT(full) 
[  446.736414][ T6006] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
[  446.736423][ T6006] Call Trace:
[  446.736429][ T6006]  <TASK>
[  446.736435][ T6006]  dump_stack_lvl+0xe8/0x150
[  446.736460][ T6006]  f2fs_stop_checkpoint+0x3f6/0x5d0
[  446.736479][ T6006]  f2fs_write_end_io+0x124b/0x1710
[  446.736509][ T6006]  __submit_merged_bio+0x258/0x6a0
[  446.736524][ T6006]  ? rcu_is_watching+0x15/0xb0
[  446.736546][ T6006]  __submit_merged_write_cond+0x3c9/0x4e0
[  446.736565][ T6006]  ? __pfx___submit_merged_write_cond+0x10/0x10
[  446.736590][ T6006]  f2fs_write_data_pages+0x2a27/0x36f0
[  446.736607][ T6006]  ? __lock_acquire+0x683/0x2cf0
[  446.736644][ T6006]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  446.736690][ T6006]  ? __pfx_hlock_conflict+0x10/0x10
[  446.736701][ T6006]  ? __bfs+0x153/0x290
[  446.736717][ T6006]  ? __pfx_hlock_conflict+0x10/0x10
[  446.736740][ T6006]  ? lockdep_unlock+0x5d/0xd0
[  446.736753][ T6006]  ? __lock_acquire+0x13e8/0x2cf0
[  446.736786][ T6006]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  446.736804][ T6006]  do_writepages+0x338/0x560
[  446.736827][ T6006]  ? do_raw_spin_unlock+0x4d/0x210
[  446.736871][ T6006]  filemap_fdatawrite+0x1e9/0x2f0
[  446.736890][ T6006]  ? __pfx_filemap_fdatawrite+0x10/0x10
[  446.736936][ T6006]  ? do_raw_spin_unlock+0x4d/0x210
[  446.736953][ T6006]  f2fs_sync_dirty_inodes+0x30e/0x830
[  446.736980][ T6006]  f2fs_write_checkpoint+0xa3d/0x2710
[  446.737019][ T6006]  ? __pfx_f2fs_write_checkpoint+0x10/0x10
[  446.737069][ T6006]  kill_f2fs_super+0x2dd/0x700
[  446.737093][ T6006]  ? __pfx_kill_f2fs_super+0x10/0x10
[  446.737118][ T6006]  ? call_rcu+0x64b/0x8b0
[  446.737130][ T6006]  ? lockdep_hardirqs_on+0x7a/0x110
[  446.737154][ T6006]  deactivate_locked_super+0xbc/0x110
[  446.737193][ T6006]  cleanup_mnt+0x3d3/0x460
[  446.737210][ T6006]  task_work_run+0x1d9/0x270
[  446.737231][ T6006]  ? __pfx_task_work_run+0x10/0x10
[  446.737255][ T6006]  exit_to_user_mode_loop+0x1fa/0x730
[  446.737270][ T6006]  ? rcu_is_watching+0x15/0xb0
[  446.737289][ T6006]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  446.737303][ T6006]  do_syscall_64+0x353/0x580
[  446.737317][ T6006]  ? trace_irq_disable+0x3b/0x140
[  446.737338][ T6006]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  446.737350][ T6006] RIP: 0033:0x7f6fa019f257
[  446.737363][ T6006] Code: a2 c7 05 9c 44 25 00 00 00 00 00 eb 96 e8 e1 12 00 00 90 31 f6 e9 09 00 00 00 66 0f 1f 84 00 00 00 00 00 b8 a6 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 01 c3 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8
[  446.737374][ T6006] RSP: 002b:00007ffe2d65f5b8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
[  446.737393][ T6006] RAX: 0000000000000000 RBX: 00007f6fa023445c RCX: 00007f6fa019f257
[  446.737402][ T6006] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffe2d65f670
[  446.737409][ T6006] RBP: 00007ffe2d65f670 R08: 00007ffe2d660670 R09: 00000000ffffffff
[  446.737418][ T6006] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffe2d660700
[  446.737426][ T6006] R13: 00007f6fa023445c R14: 000000000006d07a R15: 00007ffe2d660740
[  446.737446][ T6006]  </TASK>
[  446.739049][ T6006] F2FS-fs (loop2): Stopped filesystem due to reason: 3
[  446.871525][ T6009] CPU: 1 UID: 0 PID: 6009 Comm: syz-executor Not tainted syzkaller #0 PREEMPT(full) 
[  446.871549][ T6009] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
[  446.871557][ T6009] Call Trace:
[  446.871563][ T6009]  <TASK>
[  446.871569][ T6009]  dump_stack_lvl+0xe8/0x150
[  446.871597][ T6009]  f2fs_stop_checkpoint+0x3f6/0x5d0
[  446.871617][ T6009]  f2fs_write_end_io+0x124b/0x1710
[  446.871669][ T6009]  __submit_merged_bio+0x258/0x6a0
[  446.871683][ T6009]  ? rcu_is_watching+0x15/0xb0
[  446.871705][ T6009]  __submit_merged_write_cond+0x3c9/0x4e0
[  446.871726][ T6009]  ? __pfx___submit_merged_write_cond+0x10/0x10
[  446.871754][ T6009]  f2fs_write_data_pages+0x2a27/0x36f0
[  446.871771][ T6009]  ? __lock_acquire+0x683/0x2cf0
[  446.871805][ T6009]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  446.871872][ T6009]  ? __pfx_hlock_conflict+0x10/0x10
[  446.871883][ T6009]  ? __bfs+0x153/0x290
[  446.871898][ T6009]  ? __pfx_hlock_conflict+0x10/0x10
[  446.871919][ T6009]  ? lockdep_unlock+0x5d/0xd0
[  446.871932][ T6009]  ? __lock_acquire+0x13e8/0x2cf0
[  446.871963][ T6009]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  446.871980][ T6009]  do_writepages+0x338/0x560
[  446.872007][ T6009]  ? do_raw_spin_unlock+0x4d/0x210
[  446.872023][ T6009]  filemap_fdatawrite+0x1e9/0x2f0
[  446.872043][ T6009]  ? __pfx_filemap_fdatawrite+0x10/0x10
[  446.872083][ T6009]  ? do_raw_spin_unlock+0x4d/0x210
[  446.872100][ T6009]  f2fs_sync_dirty_inodes+0x30e/0x830
[  446.872126][ T6009]  f2fs_write_checkpoint+0xa3d/0x2710
[  446.872164][ T6009]  ? __pfx_f2fs_write_checkpoint+0x10/0x10
[  446.872212][ T6009]  kill_f2fs_super+0x2dd/0x700
[  446.872234][ T6009]  ? __pfx_kill_f2fs_super+0x10/0x10
[  446.872258][ T6009]  ? call_rcu+0x64b/0x8b0
[  446.872269][ T6009]  ? lockdep_hardirqs_on+0x7a/0x110
[  446.872298][ T6009]  deactivate_locked_super+0xbc/0x110
[  446.872319][ T6009]  cleanup_mnt+0x3d3/0x460
[  446.872333][ T6009]  task_work_run+0x1d9/0x270
[  446.872354][ T6009]  ? __pfx_task_work_run+0x10/0x10
[  446.872376][ T6009]  exit_to_user_mode_loop+0x1fa/0x730
[  446.872393][ T6009]  ? rcu_is_watching+0x15/0xb0
[  446.872410][ T6009]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  446.872424][ T6009]  do_syscall_64+0x353/0x580
[  446.872437][ T6009]  ? trace_irq_disable+0x3b/0x140
[  446.872457][ T6009]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  446.872470][ T6009] RIP: 0033:0x7f8d2739f257
[  446.872483][ T6009] Code: a2 c7 05 9c 44 25 00 00 00 00 00 eb 96 e8 e1 12 00 00 90 31 f6 e9 09 00 00 00 66 0f 1f 84 00 00 00 00 00 b8 a6 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 01 c3 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8
[  446.872495][ T6009] RSP: 002b:00007ffe58d729a8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
[  446.872510][ T6009] RAX: 0000000000000000 RBX: 00007f8d2743445c RCX: 00007f8d2739f257
[  446.872520][ T6009] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffe58d72a60
[  446.872526][ T6009] RBP: 00007ffe58d72a60 R08: 00007ffe58d73a60 R09: 00000000ffffffff
[  446.872533][ T6009] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffe58d73af0
[  446.872542][ T6009] R13: 00007f8d2743445c R14: 000000000006d0e8 R15: 00007ffe58d73b30
[  446.872562][ T6009]  </TASK>
[  446.873480][ T6009] F2FS-fs (loop1): Stopped filesystem due to reason: 3
[  447.178808][T10161] F2FS-fs (loop0): Small segment_count (9 < 1 * 24)
[  447.204759][T10161] F2FS-fs (loop0): Can't find valid F2FS filesystem in 1th superblock
[  447.290885][T10161] F2FS-fs (loop0): f2fs_recover_fsync_data: recovery fsync data, check_only: 0
[  447.302519][T10161] F2FS-fs (loop0): Try to recover 1th superblock, ret: 0
[  447.307652][T10161] F2FS-fs (loop0): Mounted with checkpoint version = 48b305e5
[  447.350395][ T6004] CPU: 1 UID: 0 PID: 6004 Comm: syz-executor Not tainted syzkaller #0 PREEMPT(full) 
[  447.350421][ T6004] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
[  447.350432][ T6004] Call Trace:
[  447.350438][ T6004]  <TASK>
[  447.350444][ T6004]  dump_stack_lvl+0xe8/0x150
[  447.350470][ T6004]  f2fs_stop_checkpoint+0x3f6/0x5d0
[  447.350491][ T6004]  f2fs_write_end_io+0x124b/0x1710
[  447.350521][ T6004]  __submit_merged_bio+0x258/0x6a0
[  447.350537][ T6004]  ? rcu_is_watching+0x15/0xb0
[  447.350558][ T6004]  __submit_merged_write_cond+0x3c9/0x4e0
[  447.350579][ T6004]  ? __pfx___submit_merged_write_cond+0x10/0x10
[  447.350607][ T6004]  f2fs_write_data_pages+0x2a27/0x36f0
[  447.350646][ T6004]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  447.350686][ T6004]  ? __pfx_hlock_conflict+0x10/0x10
[  447.350699][ T6004]  ? __bfs+0x153/0x290
[  447.350712][ T6004]  ? __pfx_hlock_conflict+0x10/0x10
[  447.350735][ T6004]  ? lockdep_unlock+0x5d/0xd0
[  447.350748][ T6004]  ? __lock_acquire+0x13e8/0x2cf0
[  447.350780][ T6004]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  447.350797][ T6004]  do_writepages+0x338/0x560
[  447.350820][ T6004]  ? do_raw_spin_unlock+0x4d/0x210
[  447.350863][ T6004]  filemap_fdatawrite+0x1e9/0x2f0
[  447.350885][ T6004]  ? __pfx_filemap_fdatawrite+0x10/0x10
[  447.350926][ T6004]  ? do_raw_spin_unlock+0x4d/0x210
[  447.350941][ T6004]  f2fs_sync_dirty_inodes+0x30e/0x830
[  447.350967][ T6004]  f2fs_write_checkpoint+0xa3d/0x2710
[  447.351005][ T6004]  ? __pfx_f2fs_write_checkpoint+0x10/0x10
[  447.351053][ T6004]  kill_f2fs_super+0x2dd/0x700
[  447.351075][ T6004]  ? __pfx_kill_f2fs_super+0x10/0x10
[  447.351117][ T6004]  ? call_rcu+0x64b/0x8b0
[  447.351130][ T6004]  ? lockdep_hardirqs_on+0x7a/0x110
[  447.351152][ T6004]  deactivate_locked_super+0xbc/0x110
[  447.351172][ T6004]  cleanup_mnt+0x3d3/0x460
[  447.351188][ T6004]  task_work_run+0x1d9/0x270
[  447.351209][ T6004]  ? __pfx_task_work_run+0x10/0x10
[  447.351232][ T6004]  exit_to_user_mode_loop+0x1fa/0x730
[  447.351248][ T6004]  ? rcu_is_watching+0x15/0xb0
[  447.351265][ T6004]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  447.351278][ T6004]  do_syscall_64+0x353/0x580
[  447.351299][ T6004]  ? trace_irq_disable+0x3b/0x140
[  447.351318][ T6004]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  447.351330][ T6004] RIP: 0033:0x7f437b79f257
[  447.351345][ T6004] Code: a2 c7 05 9c 44 25 00 00 00 00 00 eb 96 e8 e1 12 00 00 90 31 f6 e9 09 00 00 00 66 0f 1f 84 00 00 00 00 00 b8 a6 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 01 c3 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8
[  447.351355][ T6004] RSP: 002b:00007fff3d965688 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
[  447.351371][ T6004] RAX: 0000000000000000 RBX: 00007f437b83445c RCX: 00007f437b79f257
[  447.351379][ T6004] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007fff3d965740
[  447.351388][ T6004] RBP: 00007fff3d965740 R08: 00007fff3d966740 R09: 00000000ffffffff
[  447.351395][ T6004] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fff3d9667d0
[  447.351402][ T6004] R13: 00007f437b83445c R14: 000000000006d2e4 R15: 00007fff3d966810
[  447.351422][ T6004]  </TASK>
[  447.352248][ T6004] F2FS-fs (loop0): Stopped filesystem due to reason: 3
[  447.708396][T10166] set_capacity_and_notify: 4 callbacks suppressed
[  447.708410][T10166] loop2: detected capacity change from 0 to 40427
[  447.737027][T10166] F2FS-fs (loop2): Small segment_count (9 < 1 * 24)
[  447.756098][T10166] F2FS-fs (loop2): Can't find valid F2FS filesystem in 1th superblock
[  447.867932][T10166] F2FS-fs (loop2): f2fs_recover_fsync_data: recovery fsync data, check_only: 0
[  447.870864][T10170] loop0: detected capacity change from 0 to 40427
[  447.876236][T10170] F2FS-fs (loop0): Small segment_count (9 < 1 * 24)
[  447.879063][T10170] F2FS-fs (loop0): Can't find valid F2FS filesystem in 1th superblock
[  447.892875][T10168] loop1: detected capacity change from 0 to 40427
[  447.904704][T10166] F2FS-fs (loop2): Try to recover 1th superblock, ret: 0
[  447.908618][T10168] F2FS-fs (loop1): Small segment_count (9 < 1 * 24)
[  447.917356][T10166] F2FS-fs (loop2): Mounted with checkpoint version = 48b305e5
[  447.918781][T10168] F2FS-fs (loop1): Can't find valid F2FS filesystem in 1th superblock
[  447.992975][T10170] F2FS-fs (loop0): f2fs_recover_fsync_data: recovery fsync data, check_only: 0
[  447.995011][T10168] F2FS-fs (loop1): f2fs_recover_fsync_data: recovery fsync data, check_only: 0
[  447.999970][T10170] F2FS-fs (loop0): Try to recover 1th superblock, ret: 0
[  448.001548][ T6006] CPU: 0 UID: 0 PID: 6006 Comm: syz-executor Not tainted syzkaller #0 PREEMPT(full) 
[  448.001569][ T6006] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
[  448.001577][ T6006] Call Trace:
[  448.001584][ T6006]  <TASK>
[  448.001589][ T6006]  dump_stack_lvl+0xe8/0x150
[  448.001612][ T6006]  f2fs_stop_checkpoint+0x3f6/0x5d0
[  448.001634][ T6006]  f2fs_write_end_io+0x124b/0x1710
[  448.001664][ T6006]  __submit_merged_bio+0x258/0x6a0
[  448.001680][ T6006]  ? rcu_is_watching+0x15/0xb0
[  448.001701][ T6006]  __submit_merged_write_cond+0x3c9/0x4e0
[  448.001722][ T6006]  ? __pfx___submit_merged_write_cond+0x10/0x10
[  448.001751][ T6006]  f2fs_write_data_pages+0x2a27/0x36f0
[  448.001768][ T6006]  ? __lock_acquire+0x683/0x2cf0
[  448.001805][ T6006]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  448.001877][ T6006]  ? __pfx_hlock_conflict+0x10/0x10
[  448.001891][ T6006]  ? __bfs+0x153/0x290
[  448.001906][ T6006]  ? __pfx_hlock_conflict+0x10/0x10
[  448.001929][ T6006]  ? lockdep_unlock+0x5d/0xd0
[  448.001941][ T6006]  ? __lock_acquire+0x13e8/0x2cf0
[  448.001971][ T6006]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  448.001989][ T6006]  do_writepages+0x338/0x560
[  448.002019][ T6006]  ? do_raw_spin_unlock+0x4d/0x210
[  448.002035][ T6006]  filemap_fdatawrite+0x1e9/0x2f0
[  448.002054][ T6006]  ? __pfx_filemap_fdatawrite+0x10/0x10
[  448.002096][ T6006]  ? do_raw_spin_unlock+0x4d/0x210
[  448.002111][ T6006]  f2fs_sync_dirty_inodes+0x30e/0x830
[  448.002138][ T6006]  f2fs_write_checkpoint+0xa3d/0x2710
[  448.002175][ T6006]  ? __pfx_f2fs_write_checkpoint+0x10/0x10
[  448.002225][ T6006]  kill_f2fs_super+0x2dd/0x700
[  448.002248][ T6006]  ? __pfx_kill_f2fs_super+0x10/0x10
[  448.002293][ T6006]  ? call_rcu+0x64b/0x8b0
[  448.002306][ T6006]  ? lockdep_hardirqs_on+0x7a/0x110
[  448.002330][ T6006]  deactivate_locked_super+0xbc/0x110
[  448.002350][ T6006]  cleanup_mnt+0x3d3/0x460
[  448.002365][ T6006]  task_work_run+0x1d9/0x270
[  448.002386][ T6006]  ? __pfx_task_work_run+0x10/0x10
[  448.002410][ T6006]  exit_to_user_mode_loop+0x1fa/0x730
[  448.002425][ T6006]  ? rcu_is_watching+0x15/0xb0
[  448.002442][ T6006]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  448.002455][ T6006]  do_syscall_64+0x353/0x580
[  448.002474][ T6006]  ? trace_irq_disable+0x3b/0x140
[  448.002493][ T6006]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  448.002504][ T6006] RIP: 0033:0x7f6fa019f257
[  448.002518][ T6006] Code: a2 c7 05 9c 44 25 00 00 00 00 00 eb 96 e8 e1 12 00 00 90 31 f6 e9 09 00 00 00 66 0f 1f 84 00 00 00 00 00 b8 a6 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 01 c3 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8
[  448.002529][ T6006] RSP: 002b:00007ffe2d65f5b8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
[  448.002542][ T6006] RAX: 0000000000000000 RBX: 00007f6fa023445c RCX: 00007f6fa019f257
[  448.002552][ T6006] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffe2d65f670
[  448.002561][ T6006] RBP: 00007ffe2d65f670 R08: 00007ffe2d660670 R09: 00000000ffffffff
[  448.002568][ T6006] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffe2d660700
[  448.002576][ T6006] R13: 00007f6fa023445c R14: 000000000006d55c R15: 00007ffe2d660740
[  448.002595][ T6006]  </TASK>
[  448.003727][ T6006] F2FS-fs (loop2): Stopped filesystem due to reason: 3
[  448.007938][T10170] F2FS-fs (loop0): Mounted with checkpoint version = 48b305e5
[  448.016374][T10168] F2FS-fs (loop1): Try to recover 1th superblock, ret: 0
[  448.132726][T10168] F2FS-fs (loop1): Mounted with checkpoint version = 48b305e5
[  448.136338][ T6004] CPU: 1 UID: 0 PID: 6004 Comm: syz-executor Not tainted syzkaller #0 PREEMPT(full) 
[  448.136376][ T6004] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
[  448.136386][ T6004] Call Trace:
[  448.136392][ T6004]  <TASK>
[  448.136397][ T6004]  dump_stack_lvl+0xe8/0x150
[  448.136420][ T6004]  f2fs_stop_checkpoint+0x3f6/0x5d0
[  448.136439][ T6004]  f2fs_write_end_io+0x124b/0x1710
[  448.136468][ T6004]  __submit_merged_bio+0x258/0x6a0
[  448.136482][ T6004]  ? rcu_is_watching+0x15/0xb0
[  448.136499][ T6004]  __submit_merged_write_cond+0x3c9/0x4e0
[  448.136517][ T6004]  ? __pfx___submit_merged_write_cond+0x10/0x10
[  448.136545][ T6004]  f2fs_write_data_pages+0x2a27/0x36f0
[  448.136581][ T6004]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  448.136619][ T6004]  ? kvm_clock_get_cycles+0x47/0x60
[  448.136632][ T6004]  ? __pfx_hlock_conflict+0x10/0x10
[  448.136642][ T6004]  ? __bfs+0x153/0x290
[  448.136655][ T6004]  ? __pfx_hlock_conflict+0x10/0x10
[  448.136676][ T6004]  ? lockdep_unlock+0x5d/0xd0
[  448.136687][ T6004]  ? __lock_acquire+0x13e8/0x2cf0
[  448.136717][ T6004]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  448.136733][ T6004]  do_writepages+0x338/0x560
[  448.136753][ T6004]  ? do_raw_spin_unlock+0x4d/0x210
[  448.136765][ T6004]  filemap_fdatawrite+0x1e9/0x2f0
[  448.136783][ T6004]  ? __pfx_filemap_fdatawrite+0x10/0x10
[  448.136851][ T6004]  ? do_raw_spin_unlock+0x4d/0x210
[  448.136868][ T6004]  f2fs_sync_dirty_inodes+0x30e/0x830
[  448.136893][ T6004]  f2fs_write_checkpoint+0xa3d/0x2710
[  448.136923][ T6004]  ? __pfx_f2fs_write_checkpoint+0x10/0x10
[  448.136969][ T6004]  kill_f2fs_super+0x2dd/0x700
[  448.136990][ T6004]  ? __pfx_kill_f2fs_super+0x10/0x10
[  448.137013][ T6004]  ? call_rcu+0x64b/0x8b0
[  448.137021][ T6004]  ? lockdep_hardirqs_on+0x7a/0x110
[  448.137041][ T6004]  deactivate_locked_super+0xbc/0x110
[  448.137059][ T6004]  cleanup_mnt+0x3d3/0x460
[  448.137098][ T6004]  task_work_run+0x1d9/0x270
[  448.137113][ T6004]  ? __pfx_task_work_run+0x10/0x10
[  448.137134][ T6004]  exit_to_user_mode_loop+0x1fa/0x730
[  448.137148][ T6004]  ? rcu_is_watching+0x15/0xb0
[  448.137164][ T6004]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  448.137176][ T6004]  do_syscall_64+0x353/0x580
[  448.137189][ T6004]  ? trace_irq_disable+0x3b/0x140
[  448.137207][ T6004]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  448.137216][ T6004] RIP: 0033:0x7f437b79f257
[  448.137227][ T6004] Code: a2 c7 05 9c 44 25 00 00 00 00 00 eb 96 e8 e1 12 00 00 90 31 f6 e9 09 00 00 00 66 0f 1f 84 00 00 00 00 00 b8 a6 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 01 c3 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8
[  448.137236][ T6004] RSP: 002b:00007fff3d965688 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
[  448.137250][ T6004] RAX: 0000000000000000 RBX: 00007f437b83445c RCX: 00007f437b79f257
[  448.137258][ T6004] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007fff3d965740
[  448.137264][ T6004] RBP: 00007fff3d965740 R08: 00007fff3d966740 R09: 00000000ffffffff
[  448.137271][ T6004] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fff3d9667d0
[  448.137278][ T6004] R13: 00007f437b83445c R14: 000000000006d596 R15: 00007fff3d966810
[  448.137297][ T6004]  </TASK>
[  448.140524][ T6004] F2FS-fs (loop0): Stopped filesystem due to reason: 3
[  448.260736][ T6009] CPU: 0 UID: 0 PID: 6009 Comm: syz-executor Not tainted syzkaller #0 PREEMPT(full) 
[  448.260756][ T6009] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
[  448.260763][ T6009] Call Trace:
[  448.260769][ T6009]  <TASK>
[  448.260774][ T6009]  dump_stack_lvl+0xe8/0x150
[  448.260796][ T6009]  f2fs_stop_checkpoint+0x3f6/0x5d0
[  448.260813][ T6009]  f2fs_write_end_io+0x124b/0x1710
[  448.260870][ T6009]  __submit_merged_bio+0x258/0x6a0
[  448.260885][ T6009]  ? rcu_is_watching+0x15/0xb0
[  448.260905][ T6009]  __submit_merged_write_cond+0x3c9/0x4e0
[  448.260923][ T6009]  ? __pfx___submit_merged_write_cond+0x10/0x10
[  448.260946][ T6009]  f2fs_write_data_pages+0x2a27/0x36f0
[  448.260960][ T6009]  ? __lock_acquire+0x683/0x2cf0
[  448.260994][ T6009]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  448.261036][ T6009]  ? __pfx_hlock_conflict+0x10/0x10
[  448.261045][ T6009]  ? __bfs+0x153/0x290
[  448.261054][ T6009]  ? __pfx_hlock_conflict+0x10/0x10
[  448.261075][ T6009]  ? lockdep_unlock+0x5d/0xd0
[  448.261087][ T6009]  ? __lock_acquire+0x13e8/0x2cf0
[  448.261116][ T6009]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  448.261132][ T6009]  do_writepages+0x338/0x560
[  448.261154][ T6009]  ? do_raw_spin_unlock+0x4d/0x210
[  448.261168][ T6009]  filemap_fdatawrite+0x1e9/0x2f0
[  448.261182][ T6009]  ? __pfx_filemap_fdatawrite+0x10/0x10
[  448.261243][ T6009]  ? do_raw_spin_unlock+0x4d/0x210
[  448.261257][ T6009]  f2fs_sync_dirty_inodes+0x30e/0x830
[  448.261273][ T6009]  f2fs_write_checkpoint+0xa3d/0x2710
[  448.261294][ T6009]  ? __pfx_f2fs_write_checkpoint+0x10/0x10
[  448.261326][ T6009]  kill_f2fs_super+0x2dd/0x700
[  448.261340][ T6009]  ? __pfx_kill_f2fs_super+0x10/0x10
[  448.261354][ T6009]  ? call_rcu+0x64b/0x8b0
[  448.261360][ T6009]  ? lockdep_hardirqs_on+0x7a/0x110
[  448.261374][ T6009]  deactivate_locked_super+0xbc/0x110
[  448.261385][ T6009]  cleanup_mnt+0x3d3/0x460
[  448.261394][ T6009]  task_work_run+0x1d9/0x270
[  448.261406][ T6009]  ? __pfx_task_work_run+0x10/0x10
[  448.261420][ T6009]  exit_to_user_mode_loop+0x1fa/0x730
[  448.261429][ T6009]  ? rcu_is_watching+0x15/0xb0
[  448.261439][ T6009]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  448.261447][ T6009]  do_syscall_64+0x353/0x580
[  448.261455][ T6009]  ? trace_irq_disable+0x3b/0x140
[  448.261466][ T6009]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  448.261477][ T6009] RIP: 0033:0x7f8d2739f257
[  448.261490][ T6009] Code: a2 c7 05 9c 44 25 00 00 00 00 00 eb 96 e8 e1 12 00 00 90 31 f6 e9 09 00 00 00 66 0f 1f 84 00 00 00 00 00 b8 a6 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 01 c3 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8
[  448.261500][ T6009] RSP: 002b:00007ffe58d729a8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
[  448.261512][ T6009] RAX: 0000000000000000 RBX: 00007f8d2743445c RCX: 00007f8d2739f257
[  448.261520][ T6009] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffe58d72a60
[  448.261527][ T6009] RBP: 00007ffe58d72a60 R08: 00007ffe58d73a60 R09: 00000000ffffffff
[  448.261534][ T6009] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffe58d73af0
[  448.261542][ T6009] R13: 00007f8d2743445c R14: 000000000006d679 R15: 00007ffe58d73b30
[  448.261555][ T6009]  </TASK>
[  448.261914][ T6009] F2FS-fs (loop1): Stopped filesystem due to reason: 3
[  448.601381][T10178] loop2: detected capacity change from 0 to 40427
[  448.605267][T10178] F2FS-fs (loop2): Small segment_count (9 < 1 * 24)
[  448.607996][T10178] F2FS-fs (loop2): Can't find valid F2FS filesystem in 1th superblock
[  448.641041][T10178] F2FS-fs (loop2): f2fs_recover_fsync_data: recovery fsync data, check_only: 0
[  448.647853][T10178] F2FS-fs (loop2): Try to recover 1th superblock, ret: 0
[  448.650578][T10178] F2FS-fs (loop2): Mounted with checkpoint version = 48b305e5
[  448.659249][T10178] bio_check_eod: 36 callbacks suppressed
[  448.659258][T10178] syz.2.1006: attempt to access beyond end of device
[  448.659258][T10178] loop2: rw=2049, sector=53248, nr_sectors = 976 limit=40427
[  448.664483][   T33] kauditd_printk_skb: 20 callbacks suppressed
[  448.664501][   T33] audit: type=1800 audit(1785887284.192:1980): pid=10178 uid=0 auid=4294967295 ses=4294967295 subj=unconfined op=collect_data cause=failed(directio) comm="syz.2.1006" name="file1" dev="loop2" ino=10 res=0 errno=0
[  448.666407][T10178] syz.2.1006: attempt to access beyond end of device
[  448.666407][T10178] loop2: rw=8423425, sector=54224, nr_sectors = 8 limit=40427
[  448.674519][   T33] audit: type=1800 audit(1785887284.202:1981): pid=10178 uid=0 auid=4294967295 ses=4294967295 subj=unconfined op=collect_data cause=failed(directio) comm="syz.2.1006" name="file1" dev="loop2" ino=10 res=0 errno=0
[  448.688860][ T6006] syz-executor: attempt to access beyond end of device
[  448.688860][ T6006] loop2: rw=2049, sector=45096, nr_sectors = 8 limit=40427
[  448.706140][ T6006] CPU: 1 UID: 0 PID: 6006 Comm: syz-executor Not tainted syzkaller #0 PREEMPT(full) 
[  448.706172][ T6006] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
[  448.706180][ T6006] Call Trace:
[  448.706187][ T6006]  <TASK>
[  448.706193][ T6006]  dump_stack_lvl+0xe8/0x150
[  448.706220][ T6006]  f2fs_stop_checkpoint+0x3f6/0x5d0
[  448.706241][ T6006]  f2fs_write_end_io+0x124b/0x1710
[  448.706272][ T6006]  __submit_merged_bio+0x258/0x6a0
[  448.706287][ T6006]  ? rcu_is_watching+0x15/0xb0
[  448.706308][ T6006]  __submit_merged_write_cond+0x3c9/0x4e0
[  448.706328][ T6006]  ? __pfx___submit_merged_write_cond+0x10/0x10
[  448.706357][ T6006]  f2fs_write_data_pages+0x2a27/0x36f0
[  448.706397][ T6006]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  448.706438][ T6006]  ? __pfx_hlock_conflict+0x10/0x10
[  448.706450][ T6006]  ? __bfs+0x153/0x290
[  448.706464][ T6006]  ? __pfx_hlock_conflict+0x10/0x10
[  448.706487][ T6006]  ? lockdep_unlock+0x5d/0xd0
[  448.706500][ T6006]  ? __lock_acquire+0x13e8/0x2cf0
[  448.706532][ T6006]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  448.706550][ T6006]  do_writepages+0x338/0x560
[  448.706575][ T6006]  ? do_raw_spin_unlock+0x4d/0x210
[  448.706590][ T6006]  filemap_fdatawrite+0x1e9/0x2f0
[  448.706610][ T6006]  ? __pfx_filemap_fdatawrite+0x10/0x10
[  448.706653][ T6006]  ? do_raw_spin_unlock+0x4d/0x210
[  448.706668][ T6006]  f2fs_sync_dirty_inodes+0x30e/0x830
[  448.706694][ T6006]  f2fs_write_checkpoint+0xa3d/0x2710
[  448.706753][ T6006]  ? __pfx_f2fs_write_checkpoint+0x10/0x10
[  448.706863][ T6006]  kill_f2fs_super+0x2dd/0x700
[  448.706888][ T6006]  ? __pfx_kill_f2fs_super+0x10/0x10
[  448.706913][ T6006]  ? call_rcu+0x64b/0x8b0
[  448.706924][ T6006]  ? lockdep_hardirqs_on+0x7a/0x110
[  448.706947][ T6006]  deactivate_locked_super+0xbc/0x110
[  448.706967][ T6006]  cleanup_mnt+0x3d3/0x460
[  448.706983][ T6006]  task_work_run+0x1d9/0x270
[  448.707004][ T6006]  ? __pfx_task_work_run+0x10/0x10
[  448.707028][ T6006]  exit_to_user_mode_loop+0x1fa/0x730
[  448.707044][ T6006]  ? rcu_is_watching+0x15/0xb0
[  448.707062][ T6006]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  448.707075][ T6006]  do_syscall_64+0x353/0x580
[  448.707090][ T6006]  ? trace_irq_disable+0x3b/0x140
[  448.707106][ T6006]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  448.707117][ T6006] RIP: 0033:0x7f6fa019f257
[  448.707130][ T6006] Code: a2 c7 05 9c 44 25 00 00 00 00 00 eb 96 e8 e1 12 00 00 90 31 f6 e9 09 00 00 00 66 0f 1f 84 00 00 00 00 00 b8 a6 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 01 c3 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8
[  448.707140][ T6006] RSP: 002b:00007ffe2d65f5b8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
[  448.707153][ T6006] RAX: 0000000000000000 RBX: 00007f6fa023445c RCX: 00007f6fa019f257
[  448.707168][ T6006] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffe2d65f670
[  448.707174][ T6006] RBP: 00007ffe2d65f670 R08: 00007ffe2d660670 R09: 00000000ffffffff
[  448.707181][ T6006] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffe2d660700
[  448.707186][ T6006] R13: 00007f6fa023445c R14: 000000000006d81d R15: 00007ffe2d660740
[  448.707203][ T6006]  </TASK>
[  448.710990][ T6006] F2FS-fs (loop2): Stopped filesystem due to reason: 3
[  448.858327][T10182] loop1: detected capacity change from 0 to 40427
[  448.870784][T10182] F2FS-fs (loop1): Small segment_count (9 < 1 * 24)
[  448.888357][T10182] F2FS-fs (loop1): Can't find valid F2FS filesystem in 1th superblock
[  448.892538][T10180] loop0: detected capacity change from 0 to 40427
[  448.903741][T10180] F2FS-fs (loop0): Small segment_count (9 < 1 * 24)
[  448.919598][T10180] F2FS-fs (loop0): Can't find valid F2FS filesystem in 1th superblock
[  448.959992][T10182] F2FS-fs (loop1): f2fs_recover_fsync_data: recovery fsync data, check_only: 0
[  448.968093][T10182] F2FS-fs (loop1): Try to recover 1th superblock, ret: 0
[  448.970758][T10182] F2FS-fs (loop1): Mounted with checkpoint version = 48b305e5
[  448.987745][   T33] audit: type=1800 audit(1785887284.532:1982): pid=10182 uid=0 auid=4294967295 ses=4294967295 subj=unconfined op=collect_data cause=failed(directio) comm="syz.1.1008" name="file1" dev="loop1" ino=10 res=0 errno=0
[  449.000864][T10182] syz.1.1008: attempt to access beyond end of device
[  449.000864][T10182] loop1: rw=2049, sector=53248, nr_sectors = 976 limit=40427
[  449.006527][T10182] syz.1.1008: attempt to access beyond end of device
[  449.006527][T10182] loop1: rw=8423425, sector=54224, nr_sectors = 8 limit=40427
[  449.019998][   T33] audit: type=1800 audit(1785887284.532:1983): pid=10182 uid=0 auid=4294967295 ses=4294967295 subj=unconfined op=collect_data cause=failed(directio) comm="syz.1.1008" name="file1" dev="loop1" ino=10 res=0 errno=0
[  449.034712][ T6009] syz-executor: attempt to access beyond end of device
[  449.034712][ T6009] loop1: rw=2049, sector=45096, nr_sectors = 8 limit=40427
[  449.051980][ T6009] CPU: 1 UID: 0 PID: 6009 Comm: syz-executor Not tainted syzkaller #0 PREEMPT(full) 
[  449.051994][ T6009] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
[  449.051999][ T6009] Call Trace:
[  449.052010][ T6009]  <TASK>
[  449.052014][ T6009]  dump_stack_lvl+0xe8/0x150
[  449.052031][ T6009]  f2fs_stop_checkpoint+0x3f6/0x5d0
[  449.052043][ T6009]  f2fs_write_end_io+0x124b/0x1710
[  449.052062][ T6009]  __submit_merged_bio+0x258/0x6a0
[  449.052070][ T6009]  ? rcu_is_watching+0x15/0xb0
[  449.052084][ T6009]  __submit_merged_write_cond+0x3c9/0x4e0
[  449.052096][ T6009]  ? __pfx___submit_merged_write_cond+0x10/0x10
[  449.052113][ T6009]  f2fs_write_data_pages+0x2a27/0x36f0
[  449.052136][ T6009]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  449.052168][ T6009]  ? __pfx_hlock_conflict+0x10/0x10
[  449.052175][ T6009]  ? __bfs+0x153/0x290
[  449.052184][ T6009]  ? __pfx_hlock_conflict+0x10/0x10
[  449.052197][ T6009]  ? lockdep_unlock+0x5d/0xd0
[  449.052205][ T6009]  ? __lock_acquire+0x13e8/0x2cf0
[  449.052224][ T6009]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  449.052234][ T6009]  do_writepages+0x338/0x560
[  449.052249][ T6009]  ? do_raw_spin_unlock+0x4d/0x210
[  449.052259][ T6009]  filemap_fdatawrite+0x1e9/0x2f0
[  449.052271][ T6009]  ? __pfx_filemap_fdatawrite+0x10/0x10
[  449.052297][ T6009]  ? do_raw_spin_unlock+0x4d/0x210
[  449.052306][ T6009]  f2fs_sync_dirty_inodes+0x30e/0x830
[  449.052323][ T6009]  f2fs_write_checkpoint+0xa3d/0x2710
[  449.052344][ T6009]  ? __pfx_f2fs_write_checkpoint+0x10/0x10
[  449.052373][ T6009]  kill_f2fs_super+0x2dd/0x700
[  449.052387][ T6009]  ? __pfx_kill_f2fs_super+0x10/0x10
[  449.052401][ T6009]  ? call_rcu+0x64b/0x8b0
[  449.052427][ T6009]  ? lockdep_hardirqs_on+0x7a/0x110
[  449.052444][ T6009]  deactivate_locked_super+0xbc/0x110
[  449.052456][ T6009]  cleanup_mnt+0x3d3/0x460
[  449.052466][ T6009]  task_work_run+0x1d9/0x270
[  449.052479][ T6009]  ? __pfx_task_work_run+0x10/0x10
[  449.052493][ T6009]  exit_to_user_mode_loop+0x1fa/0x730
[  449.052503][ T6009]  ? rcu_is_watching+0x15/0xb0
[  449.052513][ T6009]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  449.052522][ T6009]  do_syscall_64+0x353/0x580
[  449.052530][ T6009]  ? trace_irq_disable+0x3b/0x140
[  449.052542][ T6009]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  449.052550][ T6009] RIP: 0033:0x7f8d2739f257
[  449.052559][ T6009] Code: a2 c7 05 9c 44 25 00 00 00 00 00 eb 96 e8 e1 12 00 00 90 31 f6 e9 09 00 00 00 66 0f 1f 84 00 00 00 00 00 b8 a6 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 01 c3 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8
[  449.052565][ T6009] RSP: 002b:00007ffe58d729a8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
[  449.052575][ T6009] RAX: 0000000000000000 RBX: 00007f8d2743445c RCX: 00007f8d2739f257
[  449.052580][ T6009] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffe58d72a60
[  449.052584][ T6009] RBP: 00007ffe58d72a60 R08: 00007ffe58d73a60 R09: 00000000ffffffff
[  449.052589][ T6009] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffe58d73af0
[  449.052594][ T6009] R13: 00007f8d2743445c R14: 000000000006d982 R15: 00007ffe58d73b30
[  449.052606][ T6009]  </TASK>
[  449.160681][ T6009] F2FS-fs (loop1): Stopped filesystem due to reason: 3
[  449.261793][T10180] F2FS-fs (loop0): f2fs_recover_fsync_data: recovery fsync data, check_only: 0
[  449.270058][T10180] F2FS-fs (loop0): Try to recover 1th superblock, ret: 0
[  449.272967][T10180] F2FS-fs (loop0): Mounted with checkpoint version = 48b305e5
[  449.278542][   T33] audit: type=1800 audit(1785887284.822:1984): pid=10180 uid=0 auid=4294967295 ses=4294967295 subj=unconfined op=collect_data cause=failed(directio) comm="syz.0.1007" name="file1" dev="loop0" ino=10 res=0 errno=0
[  449.286237][T10180] syz.0.1007: attempt to access beyond end of device
[  449.286237][T10180] loop0: rw=2049, sector=53248, nr_sectors = 976 limit=40427
[  449.293150][T10180] syz.0.1007: attempt to access beyond end of device
[  449.293150][T10180] loop0: rw=8423425, sector=54224, nr_sectors = 8 limit=40427
[  449.303682][   T33] audit: type=1800 audit(1785887284.822:1985): pid=10180 uid=0 auid=4294967295 ses=4294967295 subj=unconfined op=collect_data cause=failed(directio) comm="syz.0.1007" name="file1" dev="loop0" ino=10 res=0 errno=0
[  449.313054][ T6004] syz-executor: attempt to access beyond end of device
[  449.313054][ T6004] loop0: rw=2049, sector=45096, nr_sectors = 8 limit=40427
[  449.325671][ T6004] CPU: 0 UID: 0 PID: 6004 Comm: syz-executor Not tainted syzkaller #0 PREEMPT(full) 
[  449.325692][ T6004] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
[  449.325701][ T6004] Call Trace:
[  449.325707][ T6004]  <TASK>
[  449.325713][ T6004]  dump_stack_lvl+0xe8/0x150
[  449.325735][ T6004]  f2fs_stop_checkpoint+0x3f6/0x5d0
[  449.325755][ T6004]  f2fs_write_end_io+0x124b/0x1710
[  449.325785][ T6004]  __submit_merged_bio+0x258/0x6a0
[  449.325798][ T6004]  ? rcu_is_watching+0x15/0xb0
[  449.325855][ T6004]  __submit_merged_write_cond+0x3c9/0x4e0
[  449.325874][ T6004]  ? __pfx___submit_merged_write_cond+0x10/0x10
[  449.325926][ T6004]  f2fs_write_data_pages+0x2a27/0x36f0
[  449.325945][ T6004]  ? __lock_acquire+0x683/0x2cf0
[  449.325984][ T6004]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  449.326032][ T6004]  ? __pfx_hlock_conflict+0x10/0x10
[  449.326045][ T6004]  ? __bfs+0x153/0x290
[  449.326058][ T6004]  ? __pfx_hlock_conflict+0x10/0x10
[  449.326080][ T6004]  ? lockdep_unlock+0x5d/0xd0
[  449.326092][ T6004]  ? __lock_acquire+0x13e8/0x2cf0
[  449.326125][ T6004]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  449.326140][ T6004]  do_writepages+0x338/0x560
[  449.326164][ T6004]  ? do_raw_spin_unlock+0x4d/0x210
2026/08/04 23:48:04 executed programs: 1000
[  449.326181][ T6004]  filemap_fdatawrite+0x1e9/0x2f0
[  449.326199][ T6004]  ? __pfx_filemap_fdatawrite+0x10/0x10
[  449.326245][ T6004]  ? do_raw_spin_unlock+0x4d/0x210
[  449.326259][ T6004]  f2fs_sync_dirty_inodes+0x30e/0x830
[  449.326290][ T6004]  f2fs_write_checkpoint+0xa3d/0x2710
[  449.326330][ T6004]  ? __pfx_f2fs_write_checkpoint+0x10/0x10
[  449.326387][ T6004]  kill_f2fs_super+0x2dd/0x700
[  449.326411][ T6004]  ? __pfx_kill_f2fs_super+0x10/0x10
[  449.326437][ T6004]  ? call_rcu+0x64b/0x8b0
[  449.326449][ T6004]  ? lockdep_hardirqs_on+0x7a/0x110
[  449.326475][ T6004]  deactivate_locked_super+0xbc/0x110
[  449.326493][ T6004]  cleanup_mnt+0x3d3/0x460
[  449.326516][ T6004]  task_work_run+0x1d9/0x270
[  449.326535][ T6004]  ? __pfx_task_work_run+0x10/0x10
[  449.326560][ T6004]  exit_to_user_mode_loop+0x1fa/0x730
[  449.326576][ T6004]  ? rcu_is_watching+0x15/0xb0
[  449.326593][ T6004]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  449.326607][ T6004]  do_syscall_64+0x353/0x580
[  449.326621][ T6004]  ? trace_irq_disable+0x3b/0x140
[  449.326641][ T6004]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  449.326654][ T6004] RIP: 0033:0x7f437b79f257
[  449.326667][ T6004] Code: a2 c7 05 9c 44 25 00 00 00 00 00 eb 96 e8 e1 12 00 00 90 31 f6 e9 09 00 00 00 66 0f 1f 84 00 00 00 00 00 b8 a6 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 01 c3 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8
[  449.326678][ T6004] RSP: 002b:00007fff3d965688 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
[  449.326693][ T6004] RAX: 0000000000000000 RBX: 00007f437b83445c RCX: 00007f437b79f257
[  449.326701][ T6004] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007fff3d965740
[  449.326709][ T6004] RBP: 00007fff3d965740 R08: 00007fff3d966740 R09: 00000000ffffffff
[  449.326717][ T6004] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fff3d9667d0
[  449.326725][ T6004] R13: 00007f437b83445c R14: 000000000006da8c R15: 00007fff3d966810
[  449.326744][ T6004]  </TASK>
[  449.329800][ T6004] F2FS-fs (loop0): Stopped filesystem due to reason: 3
[  449.435306][T10190] loop2: detected capacity change from 0 to 40427
[  449.454556][T10190] F2FS-fs (loop2): Small segment_count (9 < 1 * 24)
[  449.457258][T10190] F2FS-fs (loop2): Can't find valid F2FS filesystem in 1th superblock
[  449.519547][T10190] F2FS-fs (loop2): f2fs_recover_fsync_data: recovery fsync data, check_only: 0
[  449.526680][T10190] F2FS-fs (loop2): Try to recover 1th superblock, ret: 0
[  449.529299][T10190] F2FS-fs (loop2): Mounted with checkpoint version = 48b305e5
[  449.532844][   T33] audit: type=1800 audit(1785887285.072:1986): pid=10190 uid=0 auid=4294967295 ses=4294967295 subj=unconfined op=collect_data cause=failed(directio) comm="syz.2.1009" name="file1" dev="loop2" ino=10 res=0 errno=0
[  449.539945][   T33] audit: type=1800 audit(1785887285.082:1987): pid=10190 uid=0 auid=4294967295 ses=4294967295 subj=unconfined op=collect_data cause=failed(directio) comm="syz.2.1009" name="file1" dev="loop2" ino=10 res=0 errno=0
[  449.550953][T10190] syz.2.1009: attempt to access beyond end of device
[  449.550953][T10190] loop2: rw=2049, sector=53248, nr_sectors = 976 limit=40427
[  449.561987][ T6006] CPU: 0 UID: 0 PID: 6006 Comm: syz-executor Not tainted syzkaller #0 PREEMPT(full) 
[  449.562013][ T6006] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
[  449.562022][ T6006] Call Trace:
[  449.562028][ T6006]  <TASK>
[  449.562033][ T6006]  dump_stack_lvl+0xe8/0x150
[  449.562054][ T6006]  f2fs_stop_checkpoint+0x3f6/0x5d0
[  449.562074][ T6006]  f2fs_write_end_io+0x124b/0x1710
[  449.562128][ T6006]  __submit_merged_bio+0x258/0x6a0
[  449.562144][ T6006]  ? rcu_is_watching+0x15/0xb0
[  449.562164][ T6006]  __submit_merged_write_cond+0x3c9/0x4e0
[  449.562184][ T6006]  ? __pfx___submit_merged_write_cond+0x10/0x10
[  449.562214][ T6006]  f2fs_write_data_pages+0x2a27/0x36f0
[  449.562251][ T6006]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  449.562295][ T6006]  ? __pfx_hlock_conflict+0x10/0x10
[  449.562306][ T6006]  ? __bfs+0x153/0x290
[  449.562320][ T6006]  ? __pfx_hlock_conflict+0x10/0x10
[  449.562343][ T6006]  ? lockdep_unlock+0x5d/0xd0
[  449.562356][ T6006]  ? __lock_acquire+0x13e8/0x2cf0
[  449.562388][ T6006]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  449.562405][ T6006]  do_writepages+0x338/0x560
[  449.562427][ T6006]  ? do_raw_spin_unlock+0x4d/0x210
[  449.562443][ T6006]  filemap_fdatawrite+0x1e9/0x2f0
[  449.562463][ T6006]  ? __pfx_filemap_fdatawrite+0x10/0x10
[  449.562506][ T6006]  ? do_raw_spin_unlock+0x4d/0x210
[  449.562522][ T6006]  f2fs_sync_dirty_inodes+0x30e/0x830
[  449.562548][ T6006]  f2fs_write_checkpoint+0xa3d/0x2710
[  449.562587][ T6006]  ? __pfx_f2fs_write_checkpoint+0x10/0x10
[  449.562634][ T6006]  kill_f2fs_super+0x2dd/0x700
[  449.562657][ T6006]  ? __pfx_kill_f2fs_super+0x10/0x10
[  449.562679][ T6006]  ? call_rcu+0x64b/0x8b0
[  449.562690][ T6006]  ? lockdep_hardirqs_on+0x7a/0x110
[  449.562710][ T6006]  deactivate_locked_super+0xbc/0x110
[  449.562729][ T6006]  cleanup_mnt+0x3d3/0x460
[  449.562743][ T6006]  task_work_run+0x1d9/0x270
[  449.562763][ T6006]  ? __pfx_task_work_run+0x10/0x10
[  449.562787][ T6006]  exit_to_user_mode_loop+0x1fa/0x730
[  449.562802][ T6006]  ? rcu_is_watching+0x15/0xb0
[  449.562849][ T6006]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  449.562862][ T6006]  do_syscall_64+0x353/0x580
[  449.562876][ T6006]  ? trace_irq_disable+0x3b/0x140
[  449.562895][ T6006]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  449.562907][ T6006] RIP: 0033:0x7f6fa019f257
[  449.562919][ T6006] Code: a2 c7 05 9c 44 25 00 00 00 00 00 eb 96 e8 e1 12 00 00 90 31 f6 e9 09 00 00 00 66 0f 1f 84 00 00 00 00 00 b8 a6 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 01 c3 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8
[  449.562936][ T6006] RSP: 002b:00007ffe2d65f5b8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
[  449.562950][ T6006] RAX: 0000000000000000 RBX: 00007f6fa023445c RCX: 00007f6fa019f257
[  449.562958][ T6006] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffe2d65f670
[  449.562965][ T6006] RBP: 00007ffe2d65f670 R08: 00007ffe2d660670 R09: 00000000ffffffff
[  449.562974][ T6006] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffe2d660700
[  449.562982][ T6006] R13: 00007f6fa023445c R14: 000000000006db88 R15: 00007ffe2d660740
[  449.563002][ T6006]  </TASK>
[  449.563628][ T6006] F2FS-fs (loop2): Stopped filesystem due to reason: 3
[  449.730450][T10192] loop1: detected capacity change from 0 to 40427
[  449.752547][T10192] F2FS-fs (loop1): Small segment_count (9 < 1 * 24)
[  449.758598][T10192] F2FS-fs (loop1): Can't find valid F2FS filesystem in 1th superblock
[  449.849326][T10192] F2FS-fs (loop1): f2fs_recover_fsync_data: recovery fsync data, check_only: 0
[  449.856853][T10192] F2FS-fs (loop1): Try to recover 1th superblock, ret: 0
[  449.859657][T10192] F2FS-fs (loop1): Mounted with checkpoint version = 48b305e5
[  449.864983][   T33] audit: type=1800 audit(1785887285.402:1988): pid=10192 uid=0 auid=4294967295 ses=4294967295 subj=unconfined op=collect_data cause=failed(directio) comm="syz.1.1010" name="file1" dev="loop1" ino=10 res=0 errno=0
[  449.876539][   T33] audit: type=1800 audit(1785887285.412:1989): pid=10192 uid=0 auid=4294967295 ses=4294967295 subj=unconfined op=collect_data cause=failed(directio) comm="syz.1.1010" name="file1" dev="loop1" ino=10 res=0 errno=0
[  449.897869][ T6009] CPU: 0 UID: 0 PID: 6009 Comm: syz-executor Not tainted syzkaller #0 PREEMPT(full) 
[  449.897883][ T6009] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
[  449.897888][ T6009] Call Trace:
[  449.897892][ T6009]  <TASK>
[  449.897895][ T6009]  dump_stack_lvl+0xe8/0x150
[  449.897911][ T6009]  f2fs_stop_checkpoint+0x3f6/0x5d0
[  449.897922][ T6009]  f2fs_write_end_io+0x124b/0x1710
[  449.897939][ T6009]  __submit_merged_bio+0x258/0x6a0
[  449.897948][ T6009]  ? rcu_is_watching+0x15/0xb0
[  449.897961][ T6009]  __submit_merged_write_cond+0x3c9/0x4e0
[  449.897973][ T6009]  ? __pfx___submit_merged_write_cond+0x10/0x10
[  449.897989][ T6009]  f2fs_write_data_pages+0x2a27/0x36f0
[  449.897998][ T6009]  ? __lock_acquire+0x683/0x2cf0
[  449.898018][ T6009]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  449.898041][ T6009]  ? __pfx_hlock_conflict+0x10/0x10
[  449.898048][ T6009]  ? __bfs+0x153/0x290
[  449.898056][ T6009]  ? __pfx_hlock_conflict+0x10/0x10
[  449.898068][ T6009]  ? lockdep_unlock+0x5d/0xd0
[  449.898075][ T6009]  ? __lock_acquire+0x13e8/0x2cf0
[  449.898093][ T6009]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  449.898102][ T6009]  do_writepages+0x338/0x560
[  449.898116][ T6009]  ? do_raw_spin_unlock+0x4d/0x210
[  449.898125][ T6009]  filemap_fdatawrite+0x1e9/0x2f0
[  449.898136][ T6009]  ? __pfx_filemap_fdatawrite+0x10/0x10
[  449.898160][ T6009]  ? do_raw_spin_unlock+0x4d/0x210
[  449.898168][ T6009]  f2fs_sync_dirty_inodes+0x30e/0x830
[  449.898183][ T6009]  f2fs_write_checkpoint+0xa3d/0x2710
[  449.898204][ T6009]  ? __pfx_f2fs_write_checkpoint+0x10/0x10
[  449.898231][ T6009]  kill_f2fs_super+0x2dd/0x700
[  449.898244][ T6009]  ? __pfx_kill_f2fs_super+0x10/0x10
[  449.898257][ T6009]  ? call_rcu+0x64b/0x8b0
[  449.898263][ T6009]  ? lockdep_hardirqs_on+0x7a/0x110
[  449.898276][ T6009]  deactivate_locked_super+0xbc/0x110
[  449.898287][ T6009]  cleanup_mnt+0x3d3/0x460
[  449.898296][ T6009]  task_work_run+0x1d9/0x270
[  449.898308][ T6009]  ? __pfx_task_work_run+0x10/0x10
[  449.898321][ T6009]  exit_to_user_mode_loop+0x1fa/0x730
[  449.898330][ T6009]  ? rcu_is_watching+0x15/0xb0
[  449.898342][ T6009]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  449.898349][ T6009]  do_syscall_64+0x353/0x580
[  449.898357][ T6009]  ? trace_irq_disable+0x3b/0x140
[  449.898368][ T6009]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  449.898375][ T6009] RIP: 0033:0x7f8d2739f257
[  449.898383][ T6009] Code: a2 c7 05 9c 44 25 00 00 00 00 00 eb 96 e8 e1 12 00 00 90 31 f6 e9 09 00 00 00 66 0f 1f 84 00 00 00 00 00 b8 a6 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 01 c3 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8
[  449.898389][ T6009] RSP: 002b:00007ffe58d729a8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
[  449.898398][ T6009] RAX: 0000000000000000 RBX: 00007f8d2743445c RCX: 00007f8d2739f257
[  449.898403][ T6009] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffe58d72a60
[  449.898408][ T6009] RBP: 00007ffe58d72a60 R08: 00007ffe58d73a60 R09: 00000000ffffffff
[  449.898412][ T6009] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffe58d73af0
[  449.898417][ T6009] R13: 00007f8d2743445c R14: 000000000006dcd9 R15: 00007ffe58d73b30
[  449.898446][ T6009]  </TASK>
[  449.898711][ T6009] F2FS-fs (loop1): Stopped filesystem due to reason: 3
[  450.033292][T10196] loop0: detected capacity change from 0 to 40427
[  450.042421][T10196] F2FS-fs (loop0): Small segment_count (9 < 1 * 24)
[  450.060607][T10196] F2FS-fs (loop0): Can't find valid F2FS filesystem in 1th superblock
[  450.138173][T10196] F2FS-fs (loop0): f2fs_recover_fsync_data: recovery fsync data, check_only: 0
[  450.147745][T10196] F2FS-fs (loop0): Try to recover 1th superblock, ret: 0
[  450.152057][T10196] F2FS-fs (loop0): Mounted with checkpoint version = 48b305e5
[  450.177248][ T6004] CPU: 1 UID: 0 PID: 6004 Comm: syz-executor Not tainted syzkaller #0 PREEMPT(full) 
[  450.177264][ T6004] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
[  450.177270][ T6004] Call Trace:
[  450.177274][ T6004]  <TASK>
[  450.177278][ T6004]  dump_stack_lvl+0xe8/0x150
[  450.177295][ T6004]  f2fs_stop_checkpoint+0x3f6/0x5d0
[  450.177308][ T6004]  f2fs_write_end_io+0x124b/0x1710
[  450.177325][ T6004]  __submit_merged_bio+0x258/0x6a0
[  450.177334][ T6004]  ? rcu_is_watching+0x15/0xb0
[  450.177348][ T6004]  __submit_merged_write_cond+0x3c9/0x4e0
[  450.177359][ T6004]  ? __pfx___submit_merged_write_cond+0x10/0x10
[  450.177375][ T6004]  f2fs_write_data_pages+0x2a27/0x36f0
[  450.177385][ T6004]  ? __lock_acquire+0x683/0x2cf0
[  450.177406][ T6004]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  450.177430][ T6004]  ? __pfx_hlock_conflict+0x10/0x10
[  450.177436][ T6004]  ? __bfs+0x153/0x290
[  450.177444][ T6004]  ? __pfx_hlock_conflict+0x10/0x10
[  450.177457][ T6004]  ? lockdep_unlock+0x5d/0xd0
[  450.177464][ T6004]  ? __lock_acquire+0x13e8/0x2cf0
[  450.177481][ T6004]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  450.177490][ T6004]  do_writepages+0x338/0x560
[  450.177504][ T6004]  ? do_raw_spin_unlock+0x4d/0x210
[  450.177513][ T6004]  filemap_fdatawrite+0x1e9/0x2f0
[  450.177524][ T6004]  ? __pfx_filemap_fdatawrite+0x10/0x10
[  450.177547][ T6004]  ? do_raw_spin_unlock+0x4d/0x210
[  450.177556][ T6004]  f2fs_sync_dirty_inodes+0x30e/0x830
[  450.177571][ T6004]  f2fs_write_checkpoint+0xa3d/0x2710
[  450.177591][ T6004]  ? __pfx_f2fs_write_checkpoint+0x10/0x10
[  450.177618][ T6004]  kill_f2fs_super+0x2dd/0x700
[  450.177630][ T6004]  ? __pfx_kill_f2fs_super+0x10/0x10
[  450.177643][ T6004]  ? call_rcu+0x64b/0x8b0
[  450.177649][ T6004]  ? lockdep_hardirqs_on+0x7a/0x110
[  450.177663][ T6004]  deactivate_locked_super+0xbc/0x110
[  450.177675][ T6004]  cleanup_mnt+0x3d3/0x460
[  450.177684][ T6004]  task_work_run+0x1d9/0x270
[  450.177701][ T6004]  ? __pfx_task_work_run+0x10/0x10
[  450.177720][ T6004]  exit_to_user_mode_loop+0x1fa/0x730
[  450.177733][ T6004]  ? rcu_is_watching+0x15/0xb0
[  450.177748][ T6004]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  450.177760][ T6004]  do_syscall_64+0x353/0x580
[  450.177773][ T6004]  ? trace_irq_disable+0x3b/0x140
[  450.177790][ T6004]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  450.177831][ T6004] RIP: 0033:0x7f437b79f257
[  450.177844][ T6004] Code: a2 c7 05 9c 44 25 00 00 00 00 00 eb 96 e8 e1 12 00 00 90 31 f6 e9 09 00 00 00 66 0f 1f 84 00 00 00 00 00 b8 a6 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 01 c3 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8
[  450.177854][ T6004] RSP: 002b:00007fff3d965688 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
[  450.177868][ T6004] RAX: 0000000000000000 RBX: 00007f437b83445c RCX: 00007f437b79f257
[  450.177876][ T6004] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007fff3d965740
[  450.177880][ T6004] RBP: 00007fff3d965740 R08: 00007fff3d966740 R09: 00000000ffffffff
[  450.177886][ T6004] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fff3d9667d0
[  450.177891][ T6004] R13: 00007f437b83445c R14: 000000000006dc33 R15: 00007fff3d966810
[  450.177902][ T6004]  </TASK>
[  450.177906][ T6004] F2FS-fs (loop0): Stopped filesystem due to reason: 3
[  450.358635][T10202] loop2: detected capacity change from 0 to 40427
[  450.370888][T10202] F2FS-fs (loop2): Small segment_count (9 < 1 * 24)
[  450.380173][T10202] F2FS-fs (loop2): Can't find valid F2FS filesystem in 1th superblock
[  450.447932][T10202] F2FS-fs (loop2): f2fs_recover_fsync_data: recovery fsync data, check_only: 0
[  450.464221][T10202] F2FS-fs (loop2): Try to recover 1th superblock, ret: 0
[  450.467691][T10202] F2FS-fs (loop2): Mounted with checkpoint version = 48b305e5
[  450.506898][T10204] F2FS-fs (loop1): Small segment_count (9 < 1 * 24)
[  450.517982][ T6006] CPU: 0 UID: 0 PID: 6006 Comm: syz-executor Not tainted syzkaller #0 PREEMPT(full) 
[  450.517997][ T6006] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
[  450.518002][ T6006] Call Trace:
[  450.518006][ T6006]  <TASK>
[  450.518010][ T6006]  dump_stack_lvl+0xe8/0x150
[  450.518025][ T6006]  f2fs_stop_checkpoint+0x3f6/0x5d0
[  450.518037][ T6006]  f2fs_write_end_io+0x124b/0x1710
[  450.518054][ T6006]  __submit_merged_bio+0x258/0x6a0
[  450.518062][ T6006]  ? rcu_is_watching+0x15/0xb0
[  450.518075][ T6006]  __submit_merged_write_cond+0x3c9/0x4e0
[  450.518086][ T6006]  ? __pfx___submit_merged_write_cond+0x10/0x10
[  450.518102][ T6006]  f2fs_write_data_pages+0x2a27/0x36f0
[  450.518111][ T6006]  ? __lock_acquire+0x683/0x2cf0
[  450.518131][ T6006]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  450.518155][ T6006]  ? __pfx_hlock_conflict+0x10/0x10
[  450.518161][ T6006]  ? __bfs+0x153/0x290
[  450.518169][ T6006]  ? __pfx_hlock_conflict+0x10/0x10
[  450.518182][ T6006]  ? lockdep_unlock+0x5d/0xd0
[  450.518190][ T6006]  ? __lock_acquire+0x13e8/0x2cf0
[  450.518207][ T6006]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  450.518216][ T6006]  do_writepages+0x338/0x560
[  450.518229][ T6006]  ? do_raw_spin_unlock+0x4d/0x210
[  450.518239][ T6006]  filemap_fdatawrite+0x1e9/0x2f0
[  450.518250][ T6006]  ? __pfx_filemap_fdatawrite+0x10/0x10
[  450.518274][ T6006]  ? do_raw_spin_unlock+0x4d/0x210
[  450.518283][ T6006]  f2fs_sync_dirty_inodes+0x30e/0x830
[  450.518298][ T6006]  f2fs_write_checkpoint+0xa3d/0x2710
[  450.518339][ T6006]  ? __pfx_f2fs_write_checkpoint+0x10/0x10
[  450.518369][ T6006]  kill_f2fs_super+0x2dd/0x700
[  450.518382][ T6006]  ? __pfx_kill_f2fs_super+0x10/0x10
[  450.518396][ T6006]  ? call_rcu+0x64b/0x8b0
[  450.518402][ T6006]  ? lockdep_hardirqs_on+0x7a/0x110
[  450.518434][ T6006]  deactivate_locked_super+0xbc/0x110
[  450.518446][ T6006]  cleanup_mnt+0x3d3/0x460
[  450.518455][ T6006]  task_work_run+0x1d9/0x270
[  450.518473][ T6006]  ? __pfx_task_work_run+0x10/0x10
[  450.518486][ T6006]  exit_to_user_mode_loop+0x1fa/0x730
[  450.518495][ T6006]  ? rcu_is_watching+0x15/0xb0
[  450.518505][ T6006]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  450.518512][ T6006]  do_syscall_64+0x353/0x580
[  450.518521][ T6006]  ? trace_irq_disable+0x3b/0x140
[  450.518532][ T6006]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  450.518538][ T6006] RIP: 0033:0x7f6fa019f257
[  450.518546][ T6006] Code: a2 c7 05 9c 44 25 00 00 00 00 00 eb 96 e8 e1 12 00 00 90 31 f6 e9 09 00 00 00 66 0f 1f 84 00 00 00 00 00 b8 a6 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 01 c3 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8
[  450.518552][ T6006] RSP: 002b:00007ffe2d65f5b8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
[  450.518562][ T6006] RAX: 0000000000000000 RBX: 00007f6fa023445c RCX: 00007f6fa019f257
[  450.518567][ T6006] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffe2d65f670
[  450.518572][ T6006] RBP: 00007ffe2d65f670 R08: 00007ffe2d660670 R09: 00000000ffffffff
[  450.518576][ T6006] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffe2d660700
[  450.518581][ T6006] R13: 00007f6fa023445c R14: 000000000006df47 R15: 00007ffe2d660740
[  450.518593][ T6006]  </TASK>
[  450.585276][T10204] F2FS-fs (loop1): Can't find valid F2FS filesystem in 1th superblock
[  450.603193][ T6006] F2FS-fs (loop2): Stopped filesystem due to reason: 3
[  450.723139][T10204] F2FS-fs (loop1): f2fs_recover_fsync_data: recovery fsync data, check_only: 0
[  450.730825][T10204] F2FS-fs (loop1): Try to recover 1th superblock, ret: 0
[  450.733626][T10204] F2FS-fs (loop1): Mounted with checkpoint version = 48b305e5
[  450.755693][ T6009] CPU: 0 UID: 0 PID: 6009 Comm: syz-executor Not tainted syzkaller #0 PREEMPT(full) 
[  450.755708][ T6009] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
[  450.755713][ T6009] Call Trace:
[  450.755717][ T6009]  <TASK>
[  450.755721][ T6009]  dump_stack_lvl+0xe8/0x150
[  450.755736][ T6009]  f2fs_stop_checkpoint+0x3f6/0x5d0
[  450.755748][ T6009]  f2fs_write_end_io+0x124b/0x1710
[  450.755765][ T6009]  __submit_merged_bio+0x258/0x6a0
[  450.755773][ T6009]  ? rcu_is_watching+0x15/0xb0
[  450.755785][ T6009]  __submit_merged_write_cond+0x3c9/0x4e0
[  450.755829][ T6009]  ? __pfx___submit_merged_write_cond+0x10/0x10
[  450.755844][ T6009]  f2fs_write_data_pages+0x2a27/0x36f0
[  450.755854][ T6009]  ? __lock_acquire+0x683/0x2cf0
[  450.755874][ T6009]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  450.755897][ T6009]  ? __pfx_hlock_conflict+0x10/0x10
[  450.755903][ T6009]  ? __bfs+0x153/0x290
[  450.755911][ T6009]  ? __pfx_hlock_conflict+0x10/0x10
[  450.755923][ T6009]  ? lockdep_unlock+0x5d/0xd0
[  450.755931][ T6009]  ? __lock_acquire+0x13e8/0x2cf0
[  450.755948][ T6009]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  450.755957][ T6009]  do_writepages+0x338/0x560
[  450.755977][ T6009]  ? do_raw_spin_unlock+0x4d/0x210
[  450.755986][ T6009]  filemap_fdatawrite+0x1e9/0x2f0
[  450.755997][ T6009]  ? __pfx_filemap_fdatawrite+0x10/0x10
[  450.756020][ T6009]  ? do_raw_spin_unlock+0x4d/0x210
[  450.756029][ T6009]  f2fs_sync_dirty_inodes+0x30e/0x830
[  450.756043][ T6009]  f2fs_write_checkpoint+0xa3d/0x2710
[  450.756063][ T6009]  ? __pfx_f2fs_write_checkpoint+0x10/0x10
[  450.756089][ T6009]  kill_f2fs_super+0x2dd/0x700
[  450.756102][ T6009]  ? __pfx_kill_f2fs_super+0x10/0x10
[  450.756115][ T6009]  ? call_rcu+0x64b/0x8b0
[  450.756121][ T6009]  ? lockdep_hardirqs_on+0x7a/0x110
[  450.756135][ T6009]  deactivate_locked_super+0xbc/0x110
[  450.756146][ T6009]  cleanup_mnt+0x3d3/0x460
[  450.756154][ T6009]  task_work_run+0x1d9/0x270
[  450.756165][ T6009]  ? __pfx_task_work_run+0x10/0x10
[  450.756178][ T6009]  exit_to_user_mode_loop+0x1fa/0x730
[  450.756187][ T6009]  ? rcu_is_watching+0x15/0xb0
[  450.756196][ T6009]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  450.756204][ T6009]  do_syscall_64+0x353/0x580
[  450.756211][ T6009]  ? trace_irq_disable+0x3b/0x140
[  450.756222][ T6009]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  450.756229][ T6009] RIP: 0033:0x7f8d2739f257
[  450.756237][ T6009] Code: a2 c7 05 9c 44 25 00 00 00 00 00 eb 96 e8 e1 12 00 00 90 31 f6 e9 09 00 00 00 66 0f 1f 84 00 00 00 00 00 b8 a6 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 01 c3 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8
[  450.756244][ T6009] RSP: 002b:00007ffe58d729a8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
[  450.756253][ T6009] RAX: 0000000000000000 RBX: 00007f8d2743445c RCX: 00007f8d2739f257
[  450.756258][ T6009] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffe58d72a60
[  450.756262][ T6009] RBP: 00007ffe58d72a60 R08: 00007ffe58d73a60 R09: 00000000ffffffff
[  450.756267][ T6009] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffe58d73af0
[  450.756272][ T6009] R13: 00007f8d2743445c R14: 000000000006e034 R15: 00007ffe58d73b30
[  450.756282][ T6009]  </TASK>
[  450.756286][ T6009] F2FS-fs (loop1): Stopped filesystem due to reason: 3
[  450.929640][T10208] F2FS-fs (loop0): Small segment_count (9 < 1 * 24)
[  450.950960][T10208] F2FS-fs (loop0): Can't find valid F2FS filesystem in 1th superblock
[  451.018821][T10208] F2FS-fs (loop0): f2fs_recover_fsync_data: recovery fsync data, check_only: 0
[  451.024296][T10208] F2FS-fs (loop0): Try to recover 1th superblock, ret: 0
[  451.027383][T10208] F2FS-fs (loop0): Mounted with checkpoint version = 48b305e5
[  451.056127][ T6004] CPU: 1 UID: 0 PID: 6004 Comm: syz-executor Not tainted syzkaller #0 PREEMPT(full) 
[  451.056152][ T6004] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
[  451.056161][ T6004] Call Trace:
[  451.056168][ T6004]  <TASK>
[  451.056174][ T6004]  dump_stack_lvl+0xe8/0x150
[  451.056202][ T6004]  f2fs_stop_checkpoint+0x3f6/0x5d0
[  451.056224][ T6004]  f2fs_write_end_io+0x124b/0x1710
[  451.056254][ T6004]  __submit_merged_bio+0x258/0x6a0
[  451.056271][ T6004]  ? rcu_is_watching+0x15/0xb0
[  451.056293][ T6004]  __submit_merged_write_cond+0x3c9/0x4e0
[  451.056314][ T6004]  ? __pfx___submit_merged_write_cond+0x10/0x10
[  451.056344][ T6004]  f2fs_write_data_pages+0x2a27/0x36f0
[  451.056360][ T6004]  ? __pfx_usage_match+0x10/0x10
[  451.056375][ T6004]  ? __bfs+0x153/0x290
[  451.056411][ T6004]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  451.056436][ T6004]  ? ktime_get+0x45/0x220
[  451.056468][ T6004]  ? __pfx_hlock_conflict+0x10/0x10
[  451.056480][ T6004]  ? __bfs+0x153/0x290
[  451.056493][ T6004]  ? __pfx_hlock_conflict+0x10/0x10
[  451.056515][ T6004]  ? lockdep_unlock+0x5d/0xd0
[  451.056529][ T6004]  ? __lock_acquire+0x13e8/0x2cf0
[  451.056561][ T6004]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  451.056585][ T6004]  do_writepages+0x338/0x560
[  451.056608][ T6004]  ? do_raw_spin_unlock+0x4d/0x210
[  451.056625][ T6004]  filemap_fdatawrite+0x1e9/0x2f0
[  451.056645][ T6004]  ? __pfx_filemap_fdatawrite+0x10/0x10
[  451.056688][ T6004]  ? do_raw_spin_unlock+0x4d/0x210
[  451.056705][ T6004]  f2fs_sync_dirty_inodes+0x30e/0x830
[  451.056732][ T6004]  f2fs_write_checkpoint+0xa3d/0x2710
[  451.056769][ T6004]  ? __pfx_f2fs_write_checkpoint+0x10/0x10
[  451.056850][ T6004]  kill_f2fs_super+0x2dd/0x700
[  451.056892][ T6004]  ? __pfx_kill_f2fs_super+0x10/0x10
[  451.056917][ T6004]  ? call_rcu+0x64b/0x8b0
[  451.056928][ T6004]  ? lockdep_hardirqs_on+0x7a/0x110
[  451.056951][ T6004]  deactivate_locked_super+0xbc/0x110
[  451.056970][ T6004]  cleanup_mnt+0x3d3/0x460
[  451.056987][ T6004]  task_work_run+0x1d9/0x270
[  451.057008][ T6004]  ? __pfx_task_work_run+0x10/0x10
[  451.057032][ T6004]  exit_to_user_mode_loop+0x1fa/0x730
[  451.057047][ T6004]  ? rcu_is_watching+0x15/0xb0
[  451.057065][ T6004]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  451.057079][ T6004]  do_syscall_64+0x353/0x580
[  451.057092][ T6004]  ? trace_irq_disable+0x3b/0x140
[  451.057112][ T6004]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  451.057126][ T6004] RIP: 0033:0x7f437b79f257
[  451.057140][ T6004] Code: a2 c7 05 9c 44 25 00 00 00 00 00 eb 96 e8 e1 12 00 00 90 31 f6 e9 09 00 00 00 66 0f 1f 84 00 00 00 00 00 b8 a6 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 01 c3 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8
[  451.057149][ T6004] RSP: 002b:00007fff3d965688 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
[  451.057166][ T6004] RAX: 0000000000000000 RBX: 00007f437b83445c RCX: 00007f437b79f257
[  451.057173][ T6004] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007fff3d965740
[  451.057180][ T6004] RBP: 00007fff3d965740 R08: 00007fff3d966740 R09: 00000000ffffffff
[  451.057187][ T6004] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fff3d9667d0
[  451.057196][ T6004] R13: 00007f437b83445c R14: 000000000006e157 R15: 00007fff3d966810
[  451.057217][ T6004]  </TASK>
[  451.062259][ T6004] F2FS-fs (loop0): Stopped filesystem due to reason: 3
[  451.221248][T10212] F2FS-fs (loop2): Small segment_count (9 < 1 * 24)
[  451.237509][T10212] F2FS-fs (loop2): Can't find valid F2FS filesystem in 1th superblock
[  451.296110][T10212] F2FS-fs (loop2): f2fs_recover_fsync_data: recovery fsync data, check_only: 0
[  451.301962][T10212] F2FS-fs (loop2): Try to recover 1th superblock, ret: 0
[  451.305372][T10212] F2FS-fs (loop2): Mounted with checkpoint version = 48b305e5
[  451.331180][ T6006] CPU: 0 UID: 0 PID: 6006 Comm: syz-executor Not tainted syzkaller #0 PREEMPT(full) 
[  451.331194][ T6006] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
[  451.331199][ T6006] Call Trace:
[  451.331202][ T6006]  <TASK>
[  451.331206][ T6006]  dump_stack_lvl+0xe8/0x150
[  451.331221][ T6006]  f2fs_stop_checkpoint+0x3f6/0x5d0
[  451.331233][ T6006]  f2fs_write_end_io+0x124b/0x1710
[  451.331249][ T6006]  __submit_merged_bio+0x258/0x6a0
[  451.331258][ T6006]  ? rcu_is_watching+0x15/0xb0
[  451.331270][ T6006]  __submit_merged_write_cond+0x3c9/0x4e0
[  451.331282][ T6006]  ? __pfx___submit_merged_write_cond+0x10/0x10
[  451.331298][ T6006]  f2fs_write_data_pages+0x2a27/0x36f0
[  451.331319][ T6006]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  451.331342][ T6006]  ? __pfx_hlock_conflict+0x10/0x10
[  451.331348][ T6006]  ? __bfs+0x153/0x290
[  451.331357][ T6006]  ? __pfx_hlock_conflict+0x10/0x10
[  451.331369][ T6006]  ? lockdep_unlock+0x5d/0xd0
[  451.331376][ T6006]  ? __lock_acquire+0x13e8/0x2cf0
[  451.331394][ T6006]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  451.331404][ T6006]  do_writepages+0x338/0x560
[  451.331417][ T6006]  ? do_raw_spin_unlock+0x4d/0x210
[  451.331426][ T6006]  filemap_fdatawrite+0x1e9/0x2f0
[  451.331438][ T6006]  ? __pfx_filemap_fdatawrite+0x10/0x10
[  451.331467][ T6006]  ? do_raw_spin_unlock+0x4d/0x210
[  451.331477][ T6006]  f2fs_sync_dirty_inodes+0x30e/0x830
[  451.331492][ T6006]  f2fs_write_checkpoint+0xa3d/0x2710
[  451.331512][ T6006]  ? __pfx_f2fs_write_checkpoint+0x10/0x10
[  451.331538][ T6006]  kill_f2fs_super+0x2dd/0x700
[  451.331551][ T6006]  ? __pfx_kill_f2fs_super+0x10/0x10
[  451.331565][ T6006]  ? call_rcu+0x64b/0x8b0
[  451.331571][ T6006]  ? lockdep_hardirqs_on+0x7a/0x110
[  451.331584][ T6006]  deactivate_locked_super+0xbc/0x110
[  451.331595][ T6006]  cleanup_mnt+0x3d3/0x460
[  451.331604][ T6006]  task_work_run+0x1d9/0x270
[  451.331616][ T6006]  ? __pfx_task_work_run+0x10/0x10
[  451.331629][ T6006]  exit_to_user_mode_loop+0x1fa/0x730
[  451.331639][ T6006]  ? rcu_is_watching+0x15/0xb0
[  451.331649][ T6006]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  451.331656][ T6006]  do_syscall_64+0x353/0x580
[  451.331665][ T6006]  ? trace_irq_disable+0x3b/0x140
[  451.331676][ T6006]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  451.331683][ T6006] RIP: 0033:0x7f6fa019f257
[  451.331691][ T6006] Code: a2 c7 05 9c 44 25 00 00 00 00 00 eb 96 e8 e1 12 00 00 90 31 f6 e9 09 00 00 00 66 0f 1f 84 00 00 00 00 00 b8 a6 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 01 c3 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8
[  451.331698][ T6006] RSP: 002b:00007ffe2d65f5b8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
[  451.331706][ T6006] RAX: 0000000000000000 RBX: 00007f6fa023445c RCX: 00007f6fa019f257
[  451.331711][ T6006] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffe2d65f670
[  451.331716][ T6006] RBP: 00007ffe2d65f670 R08: 00007ffe2d660670 R09: 00000000ffffffff
[  451.331721][ T6006] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffe2d660700
[  451.331725][ T6006] R13: 00007f6fa023445c R14: 000000000006e0f8 R15: 00007ffe2d660740
[  451.331736][ T6006]  </TASK>
[  451.331740][ T6006] F2FS-fs (loop2): Stopped filesystem due to reason: 3
[  451.481054][T10216] F2FS-fs (loop1): Small segment_count (9 < 1 * 24)
[  451.486247][T10216] F2FS-fs (loop1): Can't find valid F2FS filesystem in 1th superblock
[  451.580679][T10216] F2FS-fs (loop1): f2fs_recover_fsync_data: recovery fsync data, check_only: 0
[  451.597230][T10216] F2FS-fs (loop1): Try to recover 1th superblock, ret: 0
[  451.604519][T10216] F2FS-fs (loop1): Mounted with checkpoint version = 48b305e5
[  451.660444][ T6009] CPU: 1 UID: 0 PID: 6009 Comm: syz-executor Not tainted syzkaller #0 PREEMPT(full) 
[  451.660470][ T6009] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
[  451.660479][ T6009] Call Trace:
[  451.660486][ T6009]  <TASK>
[  451.660493][ T6009]  dump_stack_lvl+0xe8/0x150
[  451.660521][ T6009]  f2fs_stop_checkpoint+0x3f6/0x5d0
[  451.660542][ T6009]  f2fs_write_end_io+0x124b/0x1710
[  451.660575][ T6009]  __submit_merged_bio+0x258/0x6a0
[  451.660599][ T6009]  ? rcu_is_watching+0x15/0xb0
[  451.660624][ T6009]  __submit_merged_write_cond+0x3c9/0x4e0
[  451.660647][ T6009]  ? __pfx___submit_merged_write_cond+0x10/0x10
[  451.660678][ T6009]  f2fs_write_data_pages+0x2a27/0x36f0
[  451.660695][ T6009]  ? __lock_acquire+0x683/0x2cf0
[  451.660735][ T6009]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  451.660813][ T6009]  ? __pfx_hlock_conflict+0x10/0x10
[  451.660825][ T6009]  ? __bfs+0x153/0x290
[  451.660840][ T6009]  ? __pfx_hlock_conflict+0x10/0x10
[  451.660864][ T6009]  ? lockdep_unlock+0x5d/0xd0
[  451.660878][ T6009]  ? __lock_acquire+0x13e8/0x2cf0
[  451.660912][ T6009]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  451.660931][ T6009]  do_writepages+0x338/0x560
[  451.660957][ T6009]  ? do_raw_spin_unlock+0x4d/0x210
[  451.660974][ T6009]  filemap_fdatawrite+0x1e9/0x2f0
[  451.660994][ T6009]  ? __pfx_filemap_fdatawrite+0x10/0x10
[  451.661041][ T6009]  ? do_raw_spin_unlock+0x4d/0x210
[  451.661060][ T6009]  f2fs_sync_dirty_inodes+0x30e/0x830
[  451.661088][ T6009]  f2fs_write_checkpoint+0xa3d/0x2710
[  451.661128][ T6009]  ? __pfx_f2fs_write_checkpoint+0x10/0x10
[  451.661184][ T6009]  kill_f2fs_super+0x2dd/0x700
[  451.661208][ T6009]  ? __pfx_kill_f2fs_super+0x10/0x10
[  451.661233][ T6009]  ? call_rcu+0x64b/0x8b0
[  451.661246][ T6009]  ? lockdep_hardirqs_on+0x7a/0x110
[  451.661271][ T6009]  deactivate_locked_super+0xbc/0x110
[  451.661291][ T6009]  cleanup_mnt+0x3d3/0x460
[  451.661309][ T6009]  task_work_run+0x1d9/0x270
[  451.661329][ T6009]  ? __pfx_task_work_run+0x10/0x10
[  451.661351][ T6009]  exit_to_user_mode_loop+0x1fa/0x730
[  451.661366][ T6009]  ? rcu_is_watching+0x15/0xb0
[  451.661381][ T6009]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  451.661393][ T6009]  do_syscall_64+0x353/0x580
[  451.661407][ T6009]  ? trace_irq_disable+0x3b/0x140
[  451.661424][ T6009]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  451.661434][ T6009] RIP: 0033:0x7f8d2739f257
[  451.661447][ T6009] Code: a2 c7 05 9c 44 25 00 00 00 00 00 eb 96 e8 e1 12 00 00 90 31 f6 e9 09 00 00 00 66 0f 1f 84 00 00 00 00 00 b8 a6 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 01 c3 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8
[  451.661458][ T6009] RSP: 002b:00007ffe58d729a8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
[  451.661472][ T6009] RAX: 0000000000000000 RBX: 00007f8d2743445c RCX: 00007f8d2739f257
[  451.661480][ T6009] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffe58d72a60
[  451.661486][ T6009] RBP: 00007ffe58d72a60 R08: 00007ffe58d73a60 R09: 00000000ffffffff
[  451.661494][ T6009] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffe58d73af0
[  451.661501][ T6009] R13: 00007f8d2743445c R14: 000000000006e3b8 R15: 00007ffe58d73b30
[  451.661521][ T6009]  </TASK>
[  451.785993][ T6009] F2FS-fs (loop1): Stopped filesystem due to reason: 3
[  451.940259][T10224] F2FS-fs (loop2): Small segment_count (9 < 1 * 24)
[  451.943113][T10224] F2FS-fs (loop2): Can't find valid F2FS filesystem in 1th superblock
[  451.946721][T10220] F2FS-fs (loop0): Small segment_count (9 < 1 * 24)
[  451.961088][T10220] F2FS-fs (loop0): Can't find valid F2FS filesystem in 1th superblock
[  452.032441][T10224] F2FS-fs (loop2): f2fs_recover_fsync_data: recovery fsync data, check_only: 0
[  452.042196][T10224] F2FS-fs (loop2): Try to recover 1th superblock, ret: 0
[  452.045964][T10224] F2FS-fs (loop2): Mounted with checkpoint version = 48b305e5
[  452.065293][T10220] F2FS-fs (loop0): f2fs_recover_fsync_data: recovery fsync data, check_only: 0
[  452.072254][T10220] F2FS-fs (loop0): Try to recover 1th superblock, ret: 0
[  452.075336][T10220] F2FS-fs (loop0): Mounted with checkpoint version = 48b305e5
[  452.099562][ T6006] CPU: 0 UID: 0 PID: 6006 Comm: syz-executor Not tainted syzkaller #0 PREEMPT(full) 
[  452.099583][ T6006] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
[  452.099592][ T6006] Call Trace:
[  452.099598][ T6006]  <TASK>
[  452.099606][ T6006]  dump_stack_lvl+0xe8/0x150
[  452.099627][ T6006]  f2fs_stop_checkpoint+0x3f6/0x5d0
[  452.099648][ T6006]  f2fs_write_end_io+0x124b/0x1710
[  452.099704][ T6006]  __submit_merged_bio+0x258/0x6a0
[  452.099719][ T6006]  ? rcu_is_watching+0x15/0xb0
[  452.099738][ T6006]  __submit_merged_write_cond+0x3c9/0x4e0
[  452.099760][ T6006]  ? __pfx___submit_merged_write_cond+0x10/0x10
[  452.099822][ T6006]  f2fs_write_data_pages+0x2a27/0x36f0
[  452.099862][ T6006]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  452.099908][ T6006]  ? __pfx_hlock_conflict+0x10/0x10
[  452.099920][ T6006]  ? __bfs+0x153/0x290
[  452.099934][ T6006]  ? __pfx_hlock_conflict+0x10/0x10
[  452.099964][ T6006]  ? lockdep_unlock+0x5d/0xd0
[  452.099978][ T6006]  ? __lock_acquire+0x13e8/0x2cf0
[  452.100010][ T6006]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  452.100027][ T6006]  do_writepages+0x338/0x560
[  452.100052][ T6006]  ? do_raw_spin_unlock+0x4d/0x210
[  452.100069][ T6006]  filemap_fdatawrite+0x1e9/0x2f0
[  452.100088][ T6006]  ? __pfx_filemap_fdatawrite+0x10/0x10
[  452.100136][ T6006]  ? do_raw_spin_unlock+0x4d/0x210
[  452.100153][ T6006]  f2fs_sync_dirty_inodes+0x30e/0x830
[  452.100181][ T6006]  f2fs_write_checkpoint+0xa3d/0x2710
[  452.100221][ T6006]  ? __pfx_f2fs_write_checkpoint+0x10/0x10
[  452.100277][ T6006]  kill_f2fs_super+0x2dd/0x700
[  452.100301][ T6006]  ? __pfx_kill_f2fs_super+0x10/0x10
[  452.100328][ T6006]  ? call_rcu+0x64b/0x8b0
[  452.100340][ T6006]  ? lockdep_hardirqs_on+0x7a/0x110
[  452.100365][ T6006]  deactivate_locked_super+0xbc/0x110
[  452.100385][ T6006]  cleanup_mnt+0x3d3/0x460
[  452.100402][ T6006]  task_work_run+0x1d9/0x270
[  452.100423][ T6006]  ? __pfx_task_work_run+0x10/0x10
[  452.100448][ T6006]  exit_to_user_mode_loop+0x1fa/0x730
[  452.100464][ T6006]  ? rcu_is_watching+0x15/0xb0
[  452.100483][ T6006]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  452.100498][ T6006]  do_syscall_64+0x353/0x580
[  452.100513][ T6006]  ? trace_irq_disable+0x3b/0x140
[  452.100534][ T6006]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  452.100547][ T6006] RIP: 0033:0x7f6fa019f257
[  452.100560][ T6006] Code: a2 c7 05 9c 44 25 00 00 00 00 00 eb 96 e8 e1 12 00 00 90 31 f6 e9 09 00 00 00 66 0f 1f 84 00 00 00 00 00 b8 a6 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 01 c3 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8
[  452.100571][ T6006] RSP: 002b:00007ffe2d65f5b8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
[  452.100585][ T6006] RAX: 0000000000000000 RBX: 00007f6fa023445c RCX: 00007f6fa019f257
[  452.100594][ T6006] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffe2d65f670
[  452.100603][ T6006] RBP: 00007ffe2d65f670 R08: 00007ffe2d660670 R09: 00000000ffffffff
[  452.100611][ T6006] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffe2d660700
[  452.100619][ T6006] R13: 00007f6fa023445c R14: 000000000006e573 R15: 00007ffe2d660740
[  452.100641][ T6006]  </TASK>
[  452.169421][ T6004] CPU: 1 UID: 0 PID: 6004 Comm: syz-executor Not tainted syzkaller #0 PREEMPT(full) 
[  452.169445][ T6004] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
[  452.169453][ T6004] Call Trace:
[  452.169460][ T6004]  <TASK>
[  452.169466][ T6004]  dump_stack_lvl+0xe8/0x150
[  452.169493][ T6004]  f2fs_stop_checkpoint+0x3f6/0x5d0
[  452.169516][ T6004]  f2fs_write_end_io+0x124b/0x1710
[  452.169549][ T6004]  __submit_merged_bio+0x258/0x6a0
[  452.169564][ T6004]  ? rcu_is_watching+0x15/0xb0
[  452.169586][ T6004]  __submit_merged_write_cond+0x3c9/0x4e0
[  452.169608][ T6004]  ? __pfx___submit_merged_write_cond+0x10/0x10
[  452.169638][ T6004]  f2fs_write_data_pages+0x2a27/0x36f0
[  452.169679][ T6004]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  452.169726][ T6004]  ? __pfx_hlock_conflict+0x10/0x10
[  452.169738][ T6004]  ? __bfs+0x153/0x290
[  452.169753][ T6004]  ? __pfx_hlock_conflict+0x10/0x10
[  452.169802][ T6004]  ? lockdep_unlock+0x5d/0xd0
[  452.169818][ T6004]  ? __lock_acquire+0x13e8/0x2cf0
[  452.169852][ T6004]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  452.169869][ T6004]  do_writepages+0x338/0x560
[  452.169894][ T6004]  ? do_raw_spin_unlock+0x4d/0x210
[  452.169911][ T6004]  filemap_fdatawrite+0x1e9/0x2f0
[  452.169932][ T6004]  ? __pfx_filemap_fdatawrite+0x10/0x10
[  452.169978][ T6004]  ? do_raw_spin_unlock+0x4d/0x210
[  452.169995][ T6004]  f2fs_sync_dirty_inodes+0x30e/0x830
[  452.170023][ T6004]  f2fs_write_checkpoint+0xa3d/0x2710
[  452.170062][ T6004]  ? __pfx_f2fs_write_checkpoint+0x10/0x10
[  452.170121][ T6004]  kill_f2fs_super+0x2dd/0x700
[  452.170145][ T6004]  ? __pfx_kill_f2fs_super+0x10/0x10
[  452.170171][ T6004]  ? call_rcu+0x64b/0x8b0
[  452.170182][ T6004]  ? lockdep_hardirqs_on+0x7a/0x110
[  452.170206][ T6004]  deactivate_locked_super+0xbc/0x110
[  452.170226][ T6004]  cleanup_mnt+0x3d3/0x460
[  452.170243][ T6004]  task_work_run+0x1d9/0x270
[  452.170264][ T6004]  ? __pfx_task_work_run+0x10/0x10
[  452.170288][ T6004]  exit_to_user_mode_loop+0x1fa/0x730
[  452.170305][ T6004]  ? rcu_is_watching+0x15/0xb0
[  452.170323][ T6004]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  452.170337][ T6004]  do_syscall_64+0x353/0x580
[  452.170352][ T6004]  ? trace_irq_disable+0x3b/0x140
[  452.170372][ T6004]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  452.170385][ T6004] RIP: 0033:0x7f437b79f257
[  452.170399][ T6004] 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
[  452.170410][ T6004] RSP: 002b:00007fff3d965688 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
[  452.170425][ T6004] RAX: 0000000000000000 RBX: 00007f437b83445c RCX: 00007f437b79f257
[  452.170433][ T6004] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007fff3d965740
[  452.170441][ T6004] RBP: 00007fff3d965740 R08: 00007fff3d966740 R09: 00000000ffffffff
[  452.170449][ T6004] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fff3d9667d0
[  452.170456][ T6004] R13: 00007f437b83445c R14: 000000000006e56b R15: 00007fff3d966810
[  452.170476][ T6004]  </TASK>
[  452.170482][ T6004] F2FS-fs (loop0): Stopped filesystem due to reason: 3
[  452.208211][ T6006] F2FS-fs (loop2): Stopped filesystem due to reason: 3

[host] Command execution timed out after 6m0s