0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
[  717.929373][ T6635] RSP: 002b:00007fef84cd8028 EFLAGS: 00000246 ORIG_RAX: 000000000000011d
[  717.929392][ T6635] RAX: ffffffffffffffda RBX: 00007fef84015fa0 RCX: 00007fef83d9c629
[  717.929405][ T6635] RDX: 0000000000004000 RSI: 0000000000000008 RDI: 0000000000000006
[  717.929416][ T6635] RBP: 00007fef83e32b39 R08: 0000000000000000 R09: 0000000000000000
[  717.929427][ T6635] R10: 0000000000008000 R11: 0000000000000246 R12: 0000000000000000
[  717.929438][ T6635] R13: 00007fef84016038 R14: 00007fef84015fa0 R15: 00007ffea5ce5878
[  717.929468][ T6635]  </TASK>
[  717.929476][ T6635] F2FS-fs (loop9): Stopped filesystem due to reason: 3
[  717.933081][   T30] &tty->ldisc_sem
[  717.944321][ T6635] CPU: 0 UID: 0 PID: 6635 Comm: syz.9.27 Not tainted syzkaller #0 PREEMPT(full) 
[  717.944346][ T6635] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
[  717.944357][ T6635] Call Trace:
[  717.944364][ T6635]  <TASK>
[  717.944372][ T6635]  dump_stack_lvl+0xe8/0x150
[  717.944403][ T6635]  f2fs_handle_critical_error+0x37c/0x540
[  717.944440][ T6635]  f2fs_write_end_io+0xcdb/0xff0
[  717.944478][ T6635]  __submit_merged_bio+0x256/0x700
[  717.944510][ T6635]  f2fs_submit_page_write+0xec4/0x23e0
[  717.944566][ T6635]  ? __pfx_f2fs_submit_page_write+0x10/0x10
[  717.944603][ T6635]  ? __f2fs_is_valid_blkaddr+0xd2a/0x14f0
[  717.944638][ T6635]  do_write_page+0x40f/0xac0
[  717.944667][ T6635]  f2fs_outplace_write_data+0x11a/0x220
[  717.944693][ T6635]  f2fs_do_write_data_page+0x123b/0x16f0
[  717.944733][ T6635]  ? __pfx_f2fs_do_write_data_page+0x10/0x10
[  717.944766][ T6635]  ? __lock_acquire+0x6b5/0x2cf0
[  717.944799][ T6635]  ? release_pages+0x56c/0x5a0
[  717.944830][ T6635]  f2fs_write_single_data_page+0x906/0x18b0
[  717.944874][ T6635]  ? __pfx_f2fs_write_single_data_page+0x10/0x10
[  717.944922][ T6635]  ? folio_clear_dirty_for_io+0x1d4/0x710
[  717.944952][ T6635]  ? folio_clear_dirty_for_io+0x573/0x710
[  717.944976][ T6635]  ? folio_clear_dirty_for_io+0x1d4/0x710
[  717.945003][ T6635]  f2fs_write_data_pages+0x1a5b/0x35e0
[  717.945022][ T6635]  ? __lock_acquire+0x6b5/0x2cf0
[  717.945082][ T6635]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  717.945115][ T6635]  ? kernel_text_address+0xa5/0xe0
[  717.945168][ T6635]  ? __lock_acquire+0x6b5/0x2cf0
[  717.945216][ T6635]  ? __lock_acquire+0x6b5/0x2cf0
[  717.945259][ T6635]  ? __free_frozen_pages+0x706/0xdb0
[  717.945280][ T6635]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  717.945299][ T6635]  do_writepages+0x32e/0x550
[  717.945334][ T6635]  ? do_raw_spin_unlock+0xf5/0x210
[  717.945358][ T6635]  filemap_write_and_wait_range+0x335/0x3f0
[  717.945389][ T6635]  ? __pfx_filemap_write_and_wait_range+0x10/0x10
[  717.945457][ T6635]  ? down_write+0x16d/0x200
[  717.945483][ T6635]  ? __pfx_down_write+0x10/0x10
[  717.945521][ T6635]  f2fs_collapse_range+0x48f/0x530
[  717.945541][ T6635]  ? inode_dio_wait+0x7f/0x270
[  717.945569][ T6635]  ? __pfx_f2fs_collapse_range+0x10/0x10
[  717.945602][ T6635]  ? mnt_put_write_access_file+0xc0/0x100
[  717.945624][ T6635]  ? file_update_time_flags+0x400/0x4a0
[  717.945648][ T6635]  f2fs_fallocate+0x54d/0x9b0
[  717.945675][ T6635]  vfs_fallocate+0x669/0x7e0
[  717.945694][ T6635]  ? __fget_files+0x2a/0x420
[  717.945724][ T6635]  ? __pfx_vfs_fallocate+0x10/0x10
[  717.945742][ T6635]  ? __fget_files+0x2a/0x420
[  717.945776][ T6635]  __x64_sys_fallocate+0xc0/0x110
[  717.945800][ T6635]  do_syscall_64+0x14d/0xf80
[  717.945823][ T6635]  ? trace_irq_disable+0x3b/0x150
[  717.945838][ T6635]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  717.945856][ T6635]  ? clear_bhb_loop+0x40/0x90
[  717.945879][ T6635]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  717.945897][ T6635] RIP: 0033:0x7fef83d9c629
[  717.945915][ T6635] Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
[  717.945929][ T6635] RSP: 002b:00007fef84cd8028 EFLAGS: 00000246 ORIG_RAX: 000000000000011d
[  717.945948][ T6635] RAX: ffffffffffffffda RBX: 00007fef84015fa0 RCX: 00007fef83d9c629
[  717.945961][ T6635] RDX: 0000000000004000 RSI: 0000000000000008 RDI: 0000000000000006
[  717.945972][ T6635] RBP: 00007fef83e32b39 R08: 0000000000000000 R09: 0000000000000000
[  717.945983][ T6635] R10: 0000000000008000 R11: 0000000000000246 R12: 0000000000000000
[  717.945994][ T6635] R13: 00007fef84016038 R14: 00007fef84015fa0 R15: 00007ffea5ce5878
[  717.946027][ T6635]  </TASK>
[  717.974602][ T6635] F2FS-fs (loop9): Stopped filesystem due to reason: 3
[  717.976174][   T30] ){++++}-{0:0}
[  717.981789][ T6635] CPU: 0 UID: 0 PID: 6635 Comm: syz.9.27 Not tainted syzkaller #0 PREEMPT(full) 
[  717.981812][ T6635] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
[  717.981823][ T6635] Call Trace:
[  717.981831][ T6635]  <TASK>
[  717.981838][ T6635]  dump_stack_lvl+0xe8/0x150
[  717.981869][ T6635]  f2fs_handle_critical_error+0x37c/0x540
[  717.981902][ T6635]  f2fs_write_end_io+0xcdb/0xff0
[  717.981941][ T6635]  __submit_merged_bio+0x256/0x700
[  717.981973][ T6635]  f2fs_submit_page_write+0xec4/0x23e0
[  717.982030][ T6635]  ? __pfx_f2fs_submit_page_write+0x10/0x10
[  717.982060][ T6635]  ? __f2fs_is_valid_blkaddr+0xd2a/0x14f0
[  717.982095][ T6635]  do_write_page+0x40f/0xac0
[  717.982125][ T6635]  f2fs_outplace_write_data+0x11a/0x220
[  717.982151][ T6635]  f2fs_do_write_data_page+0x123b/0x16f0
[  717.982192][ T6635]  ? __pfx_f2fs_do_write_data_page+0x10/0x10
[  717.982224][ T6635]  ? __lock_acquire+0x6b5/0x2cf0
[  717.982257][ T6635]  ? release_pages+0x56c/0x5a0
[  717.982287][ T6635]  f2fs_write_single_data_page+0x906/0x18b0
[  717.982339][ T6635]  ? __pfx_f2fs_write_single_data_page+0x10/0x10
[  717.982386][ T6635]  ? folio_clear_dirty_for_io+0x1d4/0x710
[  717.982416][ T6635]  ? folio_clear_dirty_for_io+0x573/0x710
[  717.982440][ T6635]  ? folio_clear_dirty_for_io+0x1d4/0x710
[  717.982467][ T6635]  f2fs_write_data_pages+0x1a5b/0x35e0
[  717.982485][ T6635]  ? __lock_acquire+0x6b5/0x2cf0
[  717.982543][ T6635]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  717.982577][ T6635]  ? kernel_text_address+0xa5/0xe0
[  717.982628][ T6635]  ? __lock_acquire+0x6b5/0x2cf0
[  717.982676][ T6635]  ? __lock_acquire+0x6b5/0x2cf0
[  717.982719][ T6635]  ? __free_frozen_pages+0x706/0xdb0
[  717.982740][ T6635]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  717.982759][ T6635]  do_writepages+0x32e/0x550
[  717.982794][ T6635]  ? do_raw_spin_unlock+0xf5/0x210
[  717.982819][ T6635]  filemap_write_and_wait_range+0x335/0x3f0
[  717.982848][ T6635]  ? __pfx_filemap_write_and_wait_range+0x10/0x10
[  717.982916][ T6635]  ? down_write+0x16d/0x200
[  717.982941][ T6635]  ? __pfx_down_write+0x10/0x10
[  717.982978][ T6635]  f2fs_collapse_range+0x48f/0x530
[  717.982998][ T6635]  ? inode_dio_wait+0x7f/0x270
[  717.983027][ T6635]  ? __pfx_f2fs_collapse_range+0x10/0x10
[  717.983054][ T6635]  ? mnt_put_write_access_file+0xc0/0x100
[  717.983077][ T6635]  ? file_update_time_flags+0x400/0x4a0
[  717.983100][ T6635]  f2fs_fallocate+0x54d/0x9b0
[  717.983127][ T6635]  vfs_fallocate+0x669/0x7e0
[  717.983145][ T6635]  ? __fget_files+0x2a/0x420
[  717.983175][ T6635]  ? __pfx_vfs_fallocate+0x10/0x10
[  717.983193][ T6635]  ? __fget_files+0x2a/0x420
[  717.983227][ T6635]  __x64_sys_fallocate+0xc0/0x110
[  717.983251][ T6635]  do_syscall_64+0x14d/0xf80
[  717.983273][ T6635]  ? trace_irq_disable+0x3b/0x150
[  717.983288][ T6635]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  717.983306][ T6635]  ? clear_bhb_loop+0x40/0x90
[  717.983328][ T6635]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  717.983352][ T6635] RIP: 0033:0x7fef83d9c629
[  717.983370][ T6635] Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
[  717.983385][ T6635] RSP: 002b:00007fef84cd8028 EFLAGS: 00000246 ORIG_RAX: 000000000000011d
[  717.983404][ T6635] RAX: ffffffffffffffda RBX: 00007fef84015fa0 RCX: 00007fef83d9c629
[  717.983417][ T6635] RDX: 0000000000004000 RSI: 0000000000000008 RDI: 0000000000000006
[  717.983428][ T6635] RBP: 00007fef83e32b39 R08: 0000000000000000 R09: 0000000000000000
[  717.983440][ T6635] R10: 0000000000008000 R11: 0000000000000246 R12: 0000000000000000
[  717.983451][ T6635] R13: 00007fef84016038 R14: 00007fef84015fa0 R15: 00007ffea5ce5878
[  717.983484][ T6635]  </TASK>
[  717.983492][ T6635] F2FS-fs (loop9): Stopped filesystem due to reason: 3
[  717.988072][   T30] , at: tty_ldisc_ref_wait+0x25/0x70
[  717.988094][   T30]  #1: ffffc9000332b2f0 (&ldata->atomic_read_lock){+.+.}-{4:4}, at: n_tty_read+0x45c/0x13c0
[  717.988153][   T30] 4 locks held by kworker/u8:0/5923:
[  717.988165][   T30]  #0: ffff88801c2ae948
[  718.000912][ T6635] CPU: 0 UID: 0 PID: 6635 Comm: syz.9.27 Not tainted syzkaller #0 PREEMPT(full) 
[  718.000937][ T6635] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
[  718.000948][ T6635] Call Trace:
[  718.000956][ T6635]  <TASK>
[  718.000964][ T6635]  dump_stack_lvl+0xe8/0x150
[  718.000995][ T6635]  f2fs_handle_critical_error+0x37c/0x540
[  718.001029][ T6635]  f2fs_write_end_io+0xcdb/0xff0
[  718.001068][ T6635]  __submit_merged_bio+0x256/0x700
[  718.001100][ T6635]  f2fs_submit_page_write+0xec4/0x23e0
[  718.001156][ T6635]  ? __pfx_f2fs_submit_page_write+0x10/0x10
[  718.001187][ T6635]  ? __f2fs_is_valid_blkaddr+0xd2a/0x14f0
[  718.001221][ T6635]  do_write_page+0x40f/0xac0
[  718.001251][ T6635]  f2fs_outplace_write_data+0x11a/0x220
[  718.001277][ T6635]  f2fs_do_write_data_page+0x123b/0x16f0
[  718.001317][ T6635]  ? __pfx_f2fs_do_write_data_page+0x10/0x10
[  718.001356][ T6635]  ? __lock_acquire+0x6b5/0x2cf0
[  718.001389][ T6635]  ? release_pages+0x56c/0x5a0
[  718.001419][ T6635]  f2fs_write_single_data_page+0x906/0x18b0
[  718.001463][ T6635]  ? __pfx_f2fs_write_single_data_page+0x10/0x10
[  718.001510][ T6635]  ? folio_clear_dirty_for_io+0x1d4/0x710
[  718.001539][ T6635]  ? folio_clear_dirty_for_io+0x573/0x710
[  718.001563][ T6635]  ? folio_clear_dirty_for_io+0x1d4/0x710
[  718.001590][ T6635]  f2fs_write_data_pages+0x1a5b/0x35e0
[  718.001609][ T6635]  ? __lock_acquire+0x6b5/0x2cf0
[  718.001668][ T6635]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  718.001700][ T6635]  ? kernel_text_address+0xa5/0xe0
[  718.001752][ T6635]  ? __lock_acquire+0x6b5/0x2cf0
[  718.001800][ T6635]  ? __lock_acquire+0x6b5/0x2cf0
[  718.001843][ T6635]  ? __free_frozen_pages+0x706/0xdb0
[  718.001864][ T6635]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  718.001883][ T6635]  do_writepages+0x32e/0x550
[  718.001918][ T6635]  ? do_raw_spin_unlock+0xf5/0x210
[  718.001943][ T6635]  filemap_write_and_wait_range+0x335/0x3f0
[  718.001973][ T6635]  ? __pfx_filemap_write_and_wait_range+0x10/0x10
[  718.002040][ T6635]  ? down_write+0x16d/0x200
[  718.002065][ T6635]  ? __pfx_down_write+0x10/0x10
[  718.002101][ T6635]  f2fs_collapse_range+0x48f/0x530
[  718.002121][ T6635]  ? inode_dio_wait+0x7f/0x270
[  718.002150][ T6635]  ? __pfx_f2fs_collapse_range+0x10/0x10
[  718.002179][ T6635]  ? mnt_put_write_access_file+0xc0/0x100
[  718.002201][ T6635]  ? file_update_time_flags+0x400/0x4a0
[  718.002224][ T6635]  f2fs_fallocate+0x54d/0x9b0
[  718.002251][ T6635]  vfs_fallocate+0x669/0x7e0
[  718.002271][ T6635]  ? __fget_files+0x2a/0x420
[  718.002300][ T6635]  ? __pfx_vfs_fallocate+0x10/0x10
[  718.002318][ T6635]  ? __fget_files+0x2a/0x420
[  718.002358][ T6635]  __x64_sys_fallocate+0xc0/0x110
[  718.002382][ T6635]  do_syscall_64+0x14d/0xf80
[  718.002403][ T6635]  ? trace_irq_disable+0x3b/0x150
[  718.002419][ T6635]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  718.002437][ T6635]  ? clear_bhb_loop+0x40/0x90
[  718.002459][ T6635]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  718.002478][ T6635] RIP: 0033:0x7fef83d9c629
[  718.002496][ T6635] Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
[  718.002510][ T6635] RSP: 002b:00007fef84cd8028 EFLAGS: 00000246 ORIG_RAX: 000000000000011d
[  718.002529][ T6635] RAX: ffffffffffffffda RBX: 00007fef84015fa0 RCX: 00007fef83d9c629
[  718.002542][ T6635] RDX: 0000000000004000 RSI: 0000000000000008 RDI: 0000000000000006
[  718.002553][ T6635] RBP: 00007fef83e32b39 R08: 0000000000000000 R09: 0000000000000000
[  718.002564][ T6635] R10: 0000000000008000 R11: 0000000000000246 R12: 0000000000000000
[  718.002575][ T6635] R13: 00007fef84016038 R14: 00007fef84015fa0 R15: 00007ffea5ce5878
[  718.002608][ T6635]  </TASK>
[  718.002615][ T6635] F2FS-fs (loop9): Stopped filesystem due to reason: 3
[  718.005576][   T30]  (
[  718.032284][ T6635] CPU: 0 UID: 0 PID: 6635 Comm: syz.9.27 Not tainted syzkaller #0 PREEMPT(full) 
[  718.032308][ T6635] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
[  718.032319][ T6635] Call Trace:
[  718.032335][ T6635]  <TASK>
[  718.032343][ T6635]  dump_stack_lvl+0xe8/0x150
[  718.032374][ T6635]  f2fs_handle_critical_error+0x37c/0x540
[  718.032406][ T6635]  f2fs_write_end_io+0xcdb/0xff0
[  718.032445][ T6635]  __submit_merged_bio+0x256/0x700
[  718.032477][ T6635]  f2fs_submit_page_write+0xec4/0x23e0
[  718.032533][ T6635]  ? __pfx_f2fs_submit_page_write+0x10/0x10
[  718.032563][ T6635]  ? __f2fs_is_valid_blkaddr+0xd2a/0x14f0
[  718.032597][ T6635]  do_write_page+0x40f/0xac0
[  718.032627][ T6635]  f2fs_outplace_write_data+0x11a/0x220
[  718.032653][ T6635]  f2fs_do_write_data_page+0x123b/0x16f0
[  718.032694][ T6635]  ? __pfx_f2fs_do_write_data_page+0x10/0x10
[  718.032726][ T6635]  ? __lock_acquire+0x6b5/0x2cf0
[  718.032759][ T6635]  ? release_pages+0x56c/0x5a0
[  718.032788][ T6635]  f2fs_write_single_data_page+0x906/0x18b0
[  718.032833][ T6635]  ? __pfx_f2fs_write_single_data_page+0x10/0x10
[  718.032879][ T6635]  ? folio_clear_dirty_for_io+0x1d4/0x710
[  718.032909][ T6635]  ? folio_clear_dirty_for_io+0x573/0x710
[  718.032933][ T6635]  ? folio_clear_dirty_for_io+0x1d4/0x710
[  718.032961][ T6635]  f2fs_write_data_pages+0x1a5b/0x35e0
[  718.032979][ T6635]  ? __lock_acquire+0x6b5/0x2cf0
[  718.033039][ T6635]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  718.033072][ T6635]  ? kernel_text_address+0xa5/0xe0
[  718.033124][ T6635]  ? __lock_acquire+0x6b5/0x2cf0
[  718.033172][ T6635]  ? __lock_acquire+0x6b5/0x2cf0
[  718.033215][ T6635]  ? __free_frozen_pages+0x706/0xdb0
[  718.033236][ T6635]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  718.033256][ T6635]  do_writepages+0x32e/0x550
[  718.033291][ T6635]  ? do_raw_spin_unlock+0xf5/0x210
[  718.033314][ T6635]  filemap_write_and_wait_range+0x335/0x3f0
[  718.033350][ T6635]  ? __pfx_filemap_write_and_wait_range+0x10/0x10
[  718.033417][ T6635]  ? down_write+0x16d/0x200
[  718.033442][ T6635]  ? __pfx_down_write+0x10/0x10
[  718.033479][ T6635]  f2fs_collapse_range+0x48f/0x530
[  718.033499][ T6635]  ? inode_dio_wait+0x7f/0x270
[  718.033529][ T6635]  ? __pfx_f2fs_collapse_range+0x10/0x10
[  718.033556][ T6635]  ? mnt_put_write_access_file+0xc0/0x100
[  718.033578][ T6635]  ? file_update_time_flags+0x400/0x4a0
[  718.033602][ T6635]  f2fs_fallocate+0x54d/0x9b0
[  718.033629][ T6635]  vfs_fallocate+0x669/0x7e0
[  718.033648][ T6635]  ? __fget_files+0x2a/0x420
[  718.033678][ T6635]  ? __pfx_vfs_fallocate+0x10/0x10
[  718.033695][ T6635]  ? __fget_files+0x2a/0x420
[  718.033730][ T6635]  __x64_sys_fallocate+0xc0/0x110
[  718.033754][ T6635]  do_syscall_64+0x14d/0xf80
[  718.033776][ T6635]  ? trace_irq_disable+0x3b/0x150
[  718.033791][ T6635]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  718.033808][ T6635]  ? clear_bhb_loop+0x40/0x90
[  718.033831][ T6635]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  718.033849][ T6635] RIP: 0033:0x7fef83d9c629
[  718.033866][ T6635] Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
[  718.033881][ T6635] RSP: 002b:00007fef84cd8028 EFLAGS: 00000246 ORIG_RAX: 000000000000011d
[  718.033900][ T6635] RAX: ffffffffffffffda RBX: 00007fef84015fa0 RCX: 00007fef83d9c629
[  718.033913][ T6635] RDX: 0000000000004000 RSI: 0000000000000008 RDI: 0000000000000006
[  718.033924][ T6635] RBP: 00007fef83e32b39 R08: 0000000000000000 R09: 0000000000000000
[  718.033935][ T6635] R10: 0000000000008000 R11: 0000000000000246 R12: 0000000000000000
[  718.033946][ T6635] R13: 00007fef84016038 R14: 00007fef84015fa0 R15: 00007ffea5ce5878
[  718.033980][ T6635]  </TASK>
[  718.033987][ T6635] F2FS-fs (loop9): Stopped filesystem due to reason: 3
[  718.037551][   T30] (wq_completion)netns
[  718.047971][ T6635] CPU: 0 UID: 0 PID: 6635 Comm: syz.9.27 Not tainted syzkaller #0 PREEMPT(full) 
[  718.047995][ T6635] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
[  718.048006][ T6635] Call Trace:
[  718.048014][ T6635]  <TASK>
[  718.048021][ T6635]  dump_stack_lvl+0xe8/0x150
[  718.048051][ T6635]  f2fs_handle_critical_error+0x37c/0x540
[  718.048083][ T6635]  f2fs_write_end_io+0xcdb/0xff0
[  718.048122][ T6635]  __submit_merged_bio+0x256/0x700
[  718.048155][ T6635]  f2fs_submit_page_write+0xec4/0x23e0
[  718.048211][ T6635]  ? __pfx_f2fs_submit_page_write+0x10/0x10
[  718.048242][ T6635]  ? __f2fs_is_valid_blkaddr+0xd2a/0x14f0
[  718.048276][ T6635]  do_write_page+0x40f/0xac0
[  718.048306][ T6635]  f2fs_outplace_write_data+0x11a/0x220
[  718.048340][ T6635]  f2fs_do_write_data_page+0x123b/0x16f0
[  718.048380][ T6635]  ? __pfx_f2fs_do_write_data_page+0x10/0x10
[  718.048412][ T6635]  ? __lock_acquire+0x6b5/0x2cf0
[  718.048446][ T6635]  ? release_pages+0x56c/0x5a0
[  718.048477][ T6635]  f2fs_write_single_data_page+0x906/0x18b0
[  718.048521][ T6635]  ? __pfx_f2fs_write_single_data_page+0x10/0x10
[  718.048568][ T6635]  ? folio_clear_dirty_for_io+0x1d4/0x710
[  718.048598][ T6635]  ? folio_clear_dirty_for_io+0x573/0x710
[  718.048622][ T6635]  ? folio_clear_dirty_for_io+0x1d4/0x710
[  718.048649][ T6635]  f2fs_write_data_pages+0x1a5b/0x35e0
[  718.048668][ T6635]  ? __lock_acquire+0x6b5/0x2cf0
[  718.048728][ T6635]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  718.048761][ T6635]  ? kernel_text_address+0xa5/0xe0
[  718.048815][ T6635]  ? __lock_acquire+0x6b5/0x2cf0
[  718.048863][ T6635]  ? __lock_acquire+0x6b5/0x2cf0
[  718.048907][ T6635]  ? __free_frozen_pages+0x706/0xdb0
[  718.048928][ T6635]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  718.048947][ T6635]  do_writepages+0x32e/0x550
[  718.048982][ T6635]  ? do_raw_spin_unlock+0xf5/0x210
[  718.049007][ T6635]  filemap_write_and_wait_range+0x335/0x3f0
[  718.049037][ T6635]  ? __pfx_filemap_write_and_wait_range+0x10/0x10
[  718.049104][ T6635]  ? down_write+0x16d/0x200
[  718.049129][ T6635]  ? __pfx_down_write+0x10/0x10
[  718.049166][ T6635]  f2fs_collapse_range+0x48f/0x530
[  718.049186][ T6635]  ? inode_dio_wait+0x7f/0x270
[  718.049216][ T6635]  ? __pfx_f2fs_collapse_range+0x10/0x10
[  718.049243][ T6635]  ? mnt_put_write_access_file+0xc0/0x100
[  718.049266][ T6635]  ? file_update_time_flags+0x400/0x4a0
[  718.049289][ T6635]  f2fs_fallocate+0x54d/0x9b0
[  718.049316][ T6635]  vfs_fallocate+0x669/0x7e0
[  718.049341][ T6635]  ? __fget_files+0x2a/0x420
[  718.049372][ T6635]  ? __pfx_vfs_fallocate+0x10/0x10
[  718.049390][ T6635]  ? __fget_files+0x2a/0x420
[  718.049424][ T6635]  __x64_sys_fallocate+0xc0/0x110
[  718.049448][ T6635]  do_syscall_64+0x14d/0xf80
[  718.049470][ T6635]  ? trace_irq_disable+0x3b/0x150
[  718.049486][ T6635]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  718.049505][ T6635]  ? clear_bhb_loop+0x40/0x90
[  718.049527][ T6635]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  718.049545][ T6635] RIP: 0033:0x7fef83d9c629
[  718.049564][ T6635] Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
[  718.049578][ T6635] RSP: 002b:00007fef84cd8028 EFLAGS: 00000246 ORIG_RAX: 000000000000011d
[  718.049597][ T6635] RAX: ffffffffffffffda RBX: 00007fef84015fa0 RCX: 00007fef83d9c629
[  718.049611][ T6635] RDX: 0000000000004000 RSI: 0000000000000008 RDI: 0000000000000006
[  718.049621][ T6635] RBP: 00007fef83e32b39 R08: 0000000000000000 R09: 0000000000000000
[  718.049632][ T6635] R10: 0000000000008000 R11: 0000000000000246 R12: 0000000000000000
[  718.049643][ T6635] R13: 00007fef84016038 R14: 00007fef84015fa0 R15: 00007ffea5ce5878
[  718.049678][ T6635]  </TASK>
[  718.049685][ T6635] F2FS-fs (loop9): Stopped filesystem due to reason: 3
[  718.053409][   T30] ){+.+.}-{0:0}
[  718.114682][ T6635] CPU: 0 UID: 0 PID: 6635 Comm: syz.9.27 Not tainted syzkaller #0 PREEMPT(full) 
[  718.114710][ T6635] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
[  718.114721][ T6635] Call Trace:
[  718.114729][ T6635]  <TASK>
[  718.114736][ T6635]  dump_stack_lvl+0xe8/0x150
[  718.114767][ T6635]  f2fs_handle_critical_error+0x37c/0x540
[  718.114798][ T6635]  f2fs_write_end_io+0xcdb/0xff0
[  718.114835][ T6635]  __submit_merged_bio+0x256/0x700
[  718.114866][ T6635]  f2fs_submit_page_write+0xec4/0x23e0
[  718.114917][ T6635]  ? __pfx_f2fs_submit_page_write+0x10/0x10
[  718.114947][ T6635]  ? __f2fs_is_valid_blkaddr+0xd2a/0x14f0
[  718.114979][ T6635]  do_write_page+0x40f/0xac0
[  718.115007][ T6635]  f2fs_outplace_write_data+0x11a/0x220
[  718.115032][ T6635]  f2fs_do_write_data_page+0x123b/0x16f0
[  718.115070][ T6635]  ? __pfx_f2fs_do_write_data_page+0x10/0x10
[  718.115101][ T6635]  ? __lock_acquire+0x6b5/0x2cf0
[  718.115131][ T6635]  ? release_pages+0x56c/0x5a0
[  718.115161][ T6635]  f2fs_write_single_data_page+0x906/0x18b0
[  718.115202][ T6635]  ? __pfx_f2fs_write_single_data_page+0x10/0x10
[  718.115245][ T6635]  ? folio_clear_dirty_for_io+0x1d4/0x710
[  718.115273][ T6635]  ? folio_clear_dirty_for_io+0x573/0x710
[  718.115297][ T6635]  ? folio_clear_dirty_for_io+0x1d4/0x710
[  718.115323][ T6635]  f2fs_write_data_pages+0x1a5b/0x35e0
[  718.115342][ T6635]  ? __lock_acquire+0x6b5/0x2cf0
[  718.115458][ T6635]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  718.115489][ T6635]  ? kernel_text_address+0xa5/0xe0
[  718.115533][ T6635]  ? __lock_acquire+0x6b5/0x2cf0
[  718.115575][ T6635]  ? __lock_acquire+0x6b5/0x2cf0
[  718.115616][ T6635]  ? __free_frozen_pages+0x706/0xdb0
[  718.115637][ T6635]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  718.115656][ T6635]  do_writepages+0x32e/0x550
[  718.115691][ T6635]  ? do_raw_spin_unlock+0xf5/0x210
[  718.115715][ T6635]  filemap_write_and_wait_range+0x335/0x3f0
[  718.115745][ T6635]  ? __pfx_filemap_write_and_wait_range+0x10/0x10
[  718.115807][ T6635]  ? down_write+0x16d/0x200
[  718.115832][ T6635]  ? __pfx_down_write+0x10/0x10
[  718.115871][ T6635]  f2fs_collapse_range+0x48f/0x530
[  718.115891][ T6635]  ? inode_dio_wait+0x7f/0x270
[  718.115920][ T6635]  ? __pfx_f2fs_collapse_range+0x10/0x10
[  718.115947][ T6635]  ? mnt_put_write_access_file+0xc0/0x100
[  718.115971][ T6635]  ? file_update_time_flags+0x400/0x4a0
[  718.115994][ T6635]  f2fs_fallocate+0x54d/0x9b0
[  718.116021][ T6635]  vfs_fallocate+0x669/0x7e0
[  718.116040][ T6635]  ? __fget_files+0x2a/0x420
[  718.116068][ T6635]  ? __pfx_vfs_fallocate+0x10/0x10
[  718.116087][ T6635]  ? __fget_files+0x2a/0x420
[  718.116119][ T6635]  __x64_sys_fallocate+0xc0/0x110
[  718.116144][ T6635]  do_syscall_64+0x14d/0xf80
[  718.116165][ T6635]  ? trace_irq_disable+0x3b/0x150
[  718.116181][ T6635]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  718.116200][ T6635]  ? clear_bhb_loop+0x40/0x90
[  718.116222][ T6635]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  718.116239][ T6635] RIP: 0033:0x7fef83d9c629
[  718.116258][ T6635] Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
[  718.116272][ T6635] RSP: 002b:00007fef84cd8028 EFLAGS: 00000246 ORIG_RAX: 000000000000011d
[  718.116292][ T6635] RAX: ffffffffffffffda RBX: 00007fef84015fa0 RCX: 00007fef83d9c629
[  718.116305][ T6635] RDX: 0000000000004000 RSI: 0000000000000008 RDI: 0000000000000006
[  718.116316][ T6635] RBP: 00007fef83e32b39 R08: 0000000000000000 R09: 0000000000000000
[  718.116328][ T6635] R10: 0000000000008000 R11: 0000000000000246 R12: 0000000000000000
[  718.116339][ T6635] R13: 00007fef84016038 R14: 00007fef84015fa0 R15: 00007ffea5ce5878
[  718.116375][ T6635]  </TASK>
[  718.116383][ T6635] F2FS-fs (loop9): Stopped filesystem due to reason: 3
[  718.126012][   T30] , at: process_one_work+0x855/0x1650
[  718.136088][ T6635] CPU: 0 UID: 0 PID: 6635 Comm: syz.9.27 Not tainted syzkaller #0 PREEMPT(full) 
[  718.136113][ T6635] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
[  718.136124][ T6635] Call Trace:
[  718.136132][ T6635]  <TASK>
[  718.136140][ T6635]  dump_stack_lvl+0xe8/0x150
[  718.136170][ T6635]  f2fs_handle_critical_error+0x37c/0x540
[  718.136203][ T6635]  f2fs_write_end_io+0xcdb/0xff0
[  718.136242][ T6635]  __submit_merged_bio+0x256/0x700
[  718.136274][ T6635]  f2fs_submit_page_write+0xec4/0x23e0
[  718.136330][ T6635]  ? __pfx_f2fs_submit_page_write+0x10/0x10
[  718.136361][ T6635]  ? __f2fs_is_valid_blkaddr+0xd2a/0x14f0
[  718.136451][ T6635]  do_write_page+0x40f/0xac0
[  718.136480][ T6635]  f2fs_outplace_write_data+0x11a/0x220
[  718.136506][ T6635]  f2fs_do_write_data_page+0x123b/0x16f0
[  718.136547][ T6635]  ? __pfx_f2fs_do_write_data_page+0x10/0x10
[  718.136579][ T6635]  ? __lock_acquire+0x6b5/0x2cf0
[  718.136611][ T6635]  ? release_pages+0x56c/0x5a0
[  718.136642][ T6635]  f2fs_write_single_data_page+0x906/0x18b0
[  718.136685][ T6635]  ? __pfx_f2fs_write_single_data_page+0x10/0x10
[  718.136732][ T6635]  ? folio_clear_dirty_for_io+0x1d4/0x710
[  718.136762][ T6635]  ? folio_clear_dirty_for_io+0x573/0x710
[  718.136786][ T6635]  ? folio_clear_dirty_for_io+0x1d4/0x710
[  718.136814][ T6635]  f2fs_write_data_pages+0x1a5b/0x35e0
[  718.136833][ T6635]  ? __lock_acquire+0x6b5/0x2cf0
[  718.136892][ T6635]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  718.136925][ T6635]  ? kernel_text_address+0xa5/0xe0
[  718.136977][ T6635]  ? __lock_acquire+0x6b5/0x2cf0
[  718.137025][ T6635]  ? __lock_acquire+0x6b5/0x2cf0
[  718.137068][ T6635]  ? __free_frozen_pages+0x706/0xdb0
[  718.137089][ T6635]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  718.137108][ T6635]  do_writepages+0x32e/0x550
[  718.137143][ T6635]  ? do_raw_spin_unlock+0xf5/0x210
[  718.137167][ T6635]  filemap_write_and_wait_range+0x335/0x3f0
[  718.137196][ T6635]  ? __pfx_filemap_write_and_wait_range+0x10/0x10
[  718.137263][ T6635]  ? down_write+0x16d/0x200
[  718.137289][ T6635]  ? __pfx_down_write+0x10/0x10
[  718.137346][ T6635]  f2fs_collapse_range+0x48f/0x530
[  718.137371][ T6635]  ? inode_dio_wait+0x7f/0x270
[  718.137400][ T6635]  ? __pfx_f2fs_collapse_range+0x10/0x10
[  718.137427][ T6635]  ? mnt_put_write_access_file+0xc0/0x100
[  718.137449][ T6635]  ? file_update_time_flags+0x400/0x4a0
[  718.137472][ T6635]  f2fs_fallocate+0x54d/0x9b0
[  718.137500][ T6635]  vfs_fallocate+0x669/0x7e0
[  718.137518][ T6635]  ? __fget_files+0x2a/0x420
[  718.137549][ T6635]  ? __pfx_vfs_fallocate+0x10/0x10
[  718.137566][ T6635]  ? __fget_files+0x2a/0x420
[  718.137600][ T6635]  __x64_sys_fallocate+0xc0/0x110
[  718.137624][ T6635]  do_syscall_64+0x14d/0xf80
[  718.137646][ T6635]  ? trace_irq_disable+0x3b/0x150
[  718.137661][ T6635]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  718.137680][ T6635]  ? clear_bhb_loop+0x40/0x90
[  718.137703][ T6635]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  718.137720][ T6635] RIP: 0033:0x7fef83d9c629
[  718.137738][ T6635] Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
[  718.137753][ T6635] RSP: 002b:00007fef84cd8028 EFLAGS: 00000246 ORIG_RAX: 000000000000011d
[  718.137772][ T6635] RAX: ffffffffffffffda RBX: 00007fef84015fa0 RCX: 00007fef83d9c629
[  718.137785][ T6635] RDX: 0000000000004000 RSI: 0000000000000008 RDI: 0000000000000006
[  718.137796][ T6635] RBP: 00007fef83e32b39 R08: 0000000000000000 R09: 0000000000000000
[  718.137807][ T6635] R10: 0000000000008000 R11: 0000000000000246 R12: 0000000000000000
[  718.137819][ T6635] R13: 00007fef84016038 R14: 00007fef84015fa0 R15: 00007ffea5ce5878
[  718.137852][ T6635]  </TASK>
[  718.137860][ T6635] F2FS-fs (loop9): Stopped filesystem due to reason: 3
[  718.140085][   T30]  #1: 
[  718.149216][ T6635] CPU: 0 UID: 0 PID: 6635 Comm: syz.9.27 Not tainted syzkaller #0 PREEMPT(full) 
[  718.149241][ T6635] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
[  718.149252][ T6635] Call Trace:
[  718.149260][ T6635]  <TASK>
[  718.149267][ T6635]  dump_stack_lvl+0xe8/0x150
[  718.149297][ T6635]  f2fs_handle_critical_error+0x37c/0x540
[  718.149329][ T6635]  f2fs_write_end_io+0xcdb/0xff0
[  718.149376][ T6635]  __submit_merged_bio+0x256/0x700
[  718.149408][ T6635]  f2fs_submit_page_write+0xec4/0x23e0
[  718.149464][ T6635]  ? __pfx_f2fs_submit_page_write+0x10/0x10
[  718.149495][ T6635]  ? __f2fs_is_valid_blkaddr+0xd2a/0x14f0
[  718.149528][ T6635]  do_write_page+0x40f/0xac0
[  718.149558][ T6635]  f2fs_outplace_write_data+0x11a/0x220
[  718.149584][ T6635]  f2fs_do_write_data_page+0x123b/0x16f0
[  718.149623][ T6635]  ? __pfx_f2fs_do_write_data_page+0x10/0x10
[  718.149656][ T6635]  ? __lock_acquire+0x6b5/0x2cf0
[  718.149689][ T6635]  ? release_pages+0x56c/0x5a0
[  718.149719][ T6635]  f2fs_write_single_data_page+0x906/0x18b0
[  718.149762][ T6635]  ? __pfx_f2fs_write_single_data_page+0x10/0x10
[  718.149809][ T6635]  ? folio_clear_dirty_for_io+0x1d4/0x710
[  718.149838][ T6635]  ? folio_clear_dirty_for_io+0x573/0x710
[  718.149863][ T6635]  ? folio_clear_dirty_for_io+0x1d4/0x710
[  718.149890][ T6635]  f2fs_write_data_pages+0x1a5b/0x35e0
[  718.149908][ T6635]  ? __lock_acquire+0x6b5/0x2cf0
[  718.149968][ T6635]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  718.150000][ T6635]  ? kernel_text_address+0xa5/0xe0
[  718.150052][ T6635]  ? __lock_acquire+0x6b5/0x2cf0
[  718.150099][ T6635]  ? __lock_acquire+0x6b5/0x2cf0
[  718.150142][ T6635]  ? __free_frozen_pages+0x706/0xdb0
[  718.150162][ T6635]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  718.150181][ T6635]  do_writepages+0x32e/0x550
[  718.150216][ T6635]  ? do_raw_spin_unlock+0xf5/0x210
[  718.150241][ T6635]  filemap_write_and_wait_range+0x335/0x3f0
[  718.150270][ T6635]  ? __pfx_filemap_write_and_wait_range+0x10/0x10
[  718.150336][ T6635]  ? down_write+0x16d/0x200
[  718.150366][ T6635]  ? __pfx_down_write+0x10/0x10
[  718.150403][ T6635]  f2fs_collapse_range+0x48f/0x530
[  718.150424][ T6635]  ? inode_dio_wait+0x7f/0x270
[  718.150453][ T6635]  ? __pfx_f2fs_collapse_range+0x10/0x10
[  718.150480][ T6635]  ? mnt_put_write_access_file+0xc0/0x100
[  718.150502][ T6635]  ? file_update_time_flags+0x400/0x4a0
[  718.150525][ T6635]  f2fs_fallocate+0x54d/0x9b0
[  718.150552][ T6635]  vfs_fallocate+0x669/0x7e0
[  718.150571][ T6635]  ? __fget_files+0x2a/0x420
[  718.150601][ T6635]  ? __pfx_vfs_fallocate+0x10/0x10
[  718.150619][ T6635]  ? __fget_files+0x2a/0x420
[  718.150653][ T6635]  __x64_sys_fallocate+0xc0/0x110
[  718.150678][ T6635]  do_syscall_64+0x14d/0xf80
[  718.150699][ T6635]  ? trace_irq_disable+0x3b/0x150
[  718.150715][ T6635]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  718.150734][ T6635]  ? clear_bhb_loop+0x40/0x90
[  718.150756][ T6635]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  718.150774][ T6635] RIP: 0033:0x7fef83d9c629
[  718.150791][ T6635] Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
[  718.150806][ T6635] RSP: 002b:00007fef84cd8028 EFLAGS: 00000246 ORIG_RAX: 000000000000011d
[  718.150825][ T6635] RAX: ffffffffffffffda RBX: 00007fef84015fa0 RCX: 00007fef83d9c629
[  718.150838][ T6635] RDX: 0000000000004000 RSI: 0000000000000008 RDI: 0000000000000006
[  718.150849][ T6635] RBP: 00007fef83e32b39 R08: 0000000000000000 R09: 0000000000000000
[  718.150860][ T6635] R10: 0000000000008000 R11: 0000000000000246 R12: 0000000000000000
[  718.150871][ T6635] R13: 00007fef84016038 R14: 00007fef84015fa0 R15: 00007ffea5ce5878
[  718.150905][ T6635]  </TASK>
[  718.150912][ T6635] F2FS-fs (loop9): Stopped filesystem due to reason: 3
[  718.154019][   T30] ffffc90003d07c40
[  718.162129][ T6635] CPU: 0 UID: 0 PID: 6635 Comm: syz.9.27 Not tainted syzkaller #0 PREEMPT(full) 
[  718.162153][ T6635] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
[  718.162165][ T6635] Call Trace:
[  718.162172][ T6635]  <TASK>
[  718.162180][ T6635]  dump_stack_lvl+0xe8/0x150
[  718.162209][ T6635]  f2fs_handle_critical_error+0x37c/0x540
[  718.162241][ T6635]  f2fs_write_end_io+0xcdb/0xff0
[  718.162280][ T6635]  __submit_merged_bio+0x256/0x700
[  718.162311][ T6635]  f2fs_submit_page_write+0xec4/0x23e0
[  718.162374][ T6635]  ? __pfx_f2fs_submit_page_write+0x10/0x10
[  718.162405][ T6635]  ? __f2fs_is_valid_blkaddr+0xd2a/0x14f0
[  718.162440][ T6635]  do_write_page+0x40f/0xac0
[  718.162469][ T6635]  f2fs_outplace_write_data+0x11a/0x220
[  718.162495][ T6635]  f2fs_do_write_data_page+0x123b/0x16f0
[  718.162536][ T6635]  ? __pfx_f2fs_do_write_data_page+0x10/0x10
[  718.162568][ T6635]  ? __lock_acquire+0x6b5/0x2cf0
[  718.162601][ T6635]  ? release_pages+0x56c/0x5a0
[  718.162631][ T6635]  f2fs_write_single_data_page+0x906/0x18b0
[  718.162675][ T6635]  ? __pfx_f2fs_write_single_data_page+0x10/0x10
[  718.162722][ T6635]  ? folio_clear_dirty_for_io+0x1d4/0x710
[  718.162752][ T6635]  ? folio_clear_dirty_for_io+0x573/0x710
[  718.162776][ T6635]  ? folio_clear_dirty_for_io+0x1d4/0x710
[  718.162803][ T6635]  f2fs_write_data_pages+0x1a5b/0x35e0
[  718.162822][ T6635]  ? __lock_acquire+0x6b5/0x2cf0
[  718.162881][ T6635]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  718.162914][ T6635]  ? kernel_text_address+0xa5/0xe0
[  718.162966][ T6635]  ? __lock_acquire+0x6b5/0x2cf0
[  718.163014][ T6635]  ? __lock_acquire+0x6b5/0x2cf0
[  718.163057][ T6635]  ? __free_frozen_pages+0x706/0xdb0
[  718.163077][ T6635]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  718.163097][ T6635]  do_writepages+0x32e/0x550
[  718.163132][ T6635]  ? do_raw_spin_unlock+0xf5/0x210
[  718.163156][ T6635]  filemap_write_and_wait_range+0x335/0x3f0
[  718.163186][ T6635]  ? __pfx_filemap_write_and_wait_range+0x10/0x10
[  718.163252][ T6635]  ? down_write+0x16d/0x200
[  718.163277][ T6635]  ? __pfx_down_write+0x10/0x10
[  718.163314][ T6635]  f2fs_collapse_range+0x48f/0x530
[  718.163334][ T6635]  ? inode_dio_wait+0x7f/0x270
[  718.163368][ T6635]  ? __pfx_f2fs_collapse_range+0x10/0x10
[  718.163395][ T6635]  ? mnt_put_write_access_file+0xc0/0x100
[  718.163417][ T6635]  ? file_update_time_flags+0x400/0x4a0
[  718.163441][ T6635]  f2fs_fallocate+0x54d/0x9b0
[  718.163467][ T6635]  vfs_fallocate+0x669/0x7e0
[  718.163485][ T6635]  ? __fget_files+0x2a/0x420
[  718.163515][ T6635]  ? __pfx_vfs_fallocate+0x10/0x10
[  718.163534][ T6635]  ? __fget_files+0x2a/0x420
[  718.163567][ T6635]  __x64_sys_fallocate+0xc0/0x110
[  718.163592][ T6635]  do_syscall_64+0x14d/0xf80
[  718.163614][ T6635]  ? trace_irq_disable+0x3b/0x150
[  718.163629][ T6635]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  718.163648][ T6635]  ? clear_bhb_loop+0x40/0x90
[  718.163670][ T6635]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  718.163687][ T6635] RIP: 0033:0x7fef83d9c629
[  718.163706][ T6635] Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
[  718.163720][ T6635] RSP: 002b:00007fef84cd8028 EFLAGS: 00000246 ORIG_RAX: 000000000000011d
[  718.163739][ T6635] RAX: ffffffffffffffda RBX: 00007fef84015fa0 RCX: 00007fef83d9c629
[  718.163752][ T6635] RDX: 0000000000004000 RSI: 0000000000000008 RDI: 0000000000000006
[  718.163763][ T6635] RBP: 00007fef83e32b39 R08: 0000000000000000 R09: 0000000000000000
[  718.163774][ T6635] R10: 0000000000008000 R11: 0000000000000246 R12: 0000000000000000
[  718.163785][ T6635] R13: 00007fef84016038 R14: 00007fef84015fa0 R15: 00007ffea5ce5878
[  718.163818][ T6635]  </TASK>
[  718.163826][ T6635] F2FS-fs (loop9): Stopped filesystem due to reason: 3
[  718.189876][   T30]  (
[  718.234628][ T6635] CPU: 0 UID: 0 PID: 6635 Comm: syz.9.27 Not tainted syzkaller #0 PREEMPT(full) 
[  718.234654][ T6635] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
[  718.234665][ T6635] Call Trace:
[  718.234674][ T6635]  <TASK>
[  718.234681][ T6635]  dump_stack_lvl+0xe8/0x150
[  718.234712][ T6635]  f2fs_handle_critical_error+0x37c/0x540
[  718.234746][ T6635]  f2fs_write_end_io+0xcdb/0xff0
[  718.234784][ T6635]  __submit_merged_bio+0x256/0x700
[  718.234816][ T6635]  f2fs_submit_page_write+0xec4/0x23e0
[  718.234872][ T6635]  ? __pfx_f2fs_submit_page_write+0x10/0x10
[  718.234903][ T6635]  ? __f2fs_is_valid_blkaddr+0xd2a/0x14f0
[  718.234937][ T6635]  do_write_page+0x40f/0xac0
[  718.234967][ T6635]  f2fs_outplace_write_data+0x11a/0x220
[  718.234993][ T6635]  f2fs_do_write_data_page+0x123b/0x16f0
[  718.235034][ T6635]  ? __pfx_f2fs_do_write_data_page+0x10/0x10
[  718.235066][ T6635]  ? __lock_acquire+0x6b5/0x2cf0
[  718.235099][ T6635]  ? release_pages+0x56c/0x5a0
[  718.235129][ T6635]  f2fs_write_single_data_page+0x906/0x18b0
[  718.235173][ T6635]  ? __pfx_f2fs_write_single_data_page+0x10/0x10
[  718.235220][ T6635]  ? folio_clear_dirty_for_io+0x1d4/0x710
[  718.235250][ T6635]  ? folio_clear_dirty_for_io+0x573/0x710
[  718.235275][ T6635]  ? folio_clear_dirty_for_io+0x1d4/0x710
[  718.235303][ T6635]  f2fs_write_data_pages+0x1a5b/0x35e0
[  718.235322][ T6635]  ? __lock_acquire+0x6b5/0x2cf0
[  718.235380][ T6635]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  718.235413][ T6635]  ? kernel_text_address+0xa5/0xe0
[  718.235465][ T6635]  ? __lock_acquire+0x6b5/0x2cf0
[  718.235513][ T6635]  ? __lock_acquire+0x6b5/0x2cf0
[  718.235555][ T6635]  ? __free_frozen_pages+0x706/0xdb0
[  718.235576][ T6635]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  718.235595][ T6635]  do_writepages+0x32e/0x550
[  718.235636][ T6635]  ? do_raw_spin_unlock+0xf5/0x210
[  718.235660][ T6635]  filemap_write_and_wait_range+0x335/0x3f0
[  718.235690][ T6635]  ? __pfx_filemap_write_and_wait_range+0x10/0x10
[  718.235756][ T6635]  ? down_write+0x16d/0x200
[  718.235783][ T6635]  ? __pfx_down_write+0x10/0x10
[  718.235819][ T6635]  f2fs_collapse_range+0x48f/0x530
[  718.235840][ T6635]  ? inode_dio_wait+0x7f/0x270
[  718.235869][ T6635]  ? __pfx_f2fs_collapse_range+0x10/0x10
[  718.235898][ T6635]  ? mnt_put_write_access_file+0xc0/0x100
[  718.235920][ T6635]  ? file_update_time_flags+0x400/0x4a0
[  718.235943][ T6635]  f2fs_fallocate+0x54d/0x9b0
[  718.235971][ T6635]  vfs_fallocate+0x669/0x7e0
[  718.235989][ T6635]  ? __fget_files+0x2a/0x420
[  718.236019][ T6635]  ? __pfx_vfs_fallocate+0x10/0x10
[  718.236037][ T6635]  ? __fget_files+0x2a/0x420
[  718.236071][ T6635]  __x64_sys_fallocate+0xc0/0x110
[  718.236096][ T6635]  do_syscall_64+0x14d/0xf80
[  718.236118][ T6635]  ? trace_irq_disable+0x3b/0x150
[  718.236133][ T6635]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  718.236152][ T6635]  ? clear_bhb_loop+0x40/0x90
[  718.236174][ T6635]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  718.236192][ T6635] RIP: 0033:0x7fef83d9c629
[  718.236210][ T6635] Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
[  718.236226][ T6635] RSP: 002b:00007fef84cd8028 EFLAGS: 00000246 ORIG_RAX: 000000000000011d
[  718.236245][ T6635] RAX: ffffffffffffffda RBX: 00007fef84015fa0 RCX: 00007fef83d9c629
[  718.236258][ T6635] RDX: 0000000000004000 RSI: 0000000000000008 RDI: 0000000000000006
[  718.236269][ T6635] RBP: 00007fef83e32b39 R08: 0000000000000000 R09: 0000000000000000
[  718.236280][ T6635] R10: 0000000000008000 R11: 0000000000000246 R12: 0000000000000000
[  718.236292][ T6635] R13: 00007fef84016038 R14: 00007fef84015fa0 R15: 00007ffea5ce5878
[  718.236325][ T6635]  </TASK>
[  718.236332][ T6635] F2FS-fs (loop9): Stopped filesystem due to reason: 3
[  718.239259][   T30] net_cleanup_work
[  718.249099][ T6635] CPU: 0 UID: 0 PID: 6635 Comm: syz.9.27 Not tainted syzkaller #0 PREEMPT(full) 
[  718.249124][ T6635] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
[  718.249136][ T6635] Call Trace:
[  718.249144][ T6635]  <TASK>
[  718.249152][ T6635]  dump_stack_lvl+0xe8/0x150
[  718.249183][ T6635]  f2fs_handle_critical_error+0x37c/0x540
[  718.249215][ T6635]  f2fs_write_end_io+0xcdb/0xff0
[  718.249254][ T6635]  __submit_merged_bio+0x256/0x700
[  718.249286][ T6635]  f2fs_submit_page_write+0xec4/0x23e0
[  718.249341][ T6635]  ? __pfx_f2fs_submit_page_write+0x10/0x10
[  718.249371][ T6635]  ? __f2fs_is_valid_blkaddr+0xd2a/0x14f0
[  718.249406][ T6635]  do_write_page+0x40f/0xac0
[  718.249435][ T6635]  f2fs_outplace_write_data+0x11a/0x220
[  718.249461][ T6635]  f2fs_do_write_data_page+0x123b/0x16f0
[  718.249501][ T6635]  ? __pfx_f2fs_do_write_data_page+0x10/0x10
[  718.249533][ T6635]  ? __lock_acquire+0x6b5/0x2cf0
[  718.249566][ T6635]  ? release_pages+0x56c/0x5a0
[  718.249596][ T6635]  f2fs_write_single_data_page+0x906/0x18b0
[  718.249647][ T6635]  ? __pfx_f2fs_write_single_data_page+0x10/0x10
[  718.249695][ T6635]  ? folio_clear_dirty_for_io+0x1d4/0x710
[  718.249725][ T6635]  ? folio_clear_dirty_for_io+0x573/0x710
[  718.249749][ T6635]  ? folio_clear_dirty_for_io+0x1d4/0x710
[  718.249777][ T6635]  f2fs_write_data_pages+0x1a5b/0x35e0
[  718.249796][ T6635]  ? __lock_acquire+0x6b5/0x2cf0
[  718.249854][ T6635]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  718.249887][ T6635]  ? kernel_text_address+0xa5/0xe0
[  718.249939][ T6635]  ? __lock_acquire+0x6b5/0x2cf0
[  718.249988][ T6635]  ? __lock_acquire+0x6b5/0x2cf0
[  718.250030][ T6635]  ? __free_frozen_pages+0x706/0xdb0
[  718.250051][ T6635]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  718.250070][ T6635]  do_writepages+0x32e/0x550
[  718.250106][ T6635]  ? do_raw_spin_unlock+0xf5/0x210
[  718.250130][ T6635]  filemap_write_and_wait_range+0x335/0x3f0
[  718.250160][ T6635]  ? __pfx_filemap_write_and_wait_range+0x10/0x10
[  718.250227][ T6635]  ? down_write+0x16d/0x200
[  718.250252][ T6635]  ? __pfx_down_write+0x10/0x10
[  718.250289][ T6635]  f2fs_collapse_range+0x48f/0x530
[  718.250309][ T6635]  ? inode_dio_wait+0x7f/0x270
[  718.250339][ T6635]  ? __pfx_f2fs_collapse_range+0x10/0x10
[  718.250366][ T6635]  ? mnt_put_write_access_file+0xc0/0x100
[  718.250389][ T6635]  ? file_update_time_flags+0x400/0x4a0
[  718.250412][ T6635]  f2fs_fallocate+0x54d/0x9b0
[  718.250439][ T6635]  vfs_fallocate+0x669/0x7e0
[  718.250458][ T6635]  ? __fget_files+0x2a/0x420
[  718.250488][ T6635]  ? __pfx_vfs_fallocate+0x10/0x10
[  718.250506][ T6635]  ? __fget_files+0x2a/0x420
[  718.250540][ T6635]  __x64_sys_fallocate+0xc0/0x110
[  718.250565][ T6635]  do_syscall_64+0x14d/0xf80
[  718.250587][ T6635]  ? trace_irq_disable+0x3b/0x150
[  718.250608][ T6635]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  718.250626][ T6635]  ? clear_bhb_loop+0x40/0x90
[  718.250649][ T6635]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  718.250667][ T6635] RIP: 0033:0x7fef83d9c629
[  718.250685][ T6635] Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
[  718.250699][ T6635] RSP: 002b:00007fef84cd8028 EFLAGS: 00000246 ORIG_RAX: 000000000000011d
[  718.250719][ T6635] RAX: ffffffffffffffda RBX: 00007fef84015fa0 RCX: 00007fef83d9c629
[  718.250732][ T6635] RDX: 0000000000004000 RSI: 0000000000000008 RDI: 0000000000000006
[  718.250743][ T6635] RBP: 00007fef83e32b39 R08: 0000000000000000 R09: 0000000000000000
[  718.250754][ T6635] R10: 0000000000008000 R11: 0000000000000246 R12: 0000000000000000
[  718.250765][ T6635] R13: 00007fef84016038 R14: 00007fef84015fa0 R15: 00007ffea5ce5878
[  718.250798][ T6635]  </TASK>
[  718.250806][ T6635] F2FS-fs (loop9): Stopped filesystem due to reason: 3
[  718.253535][   T30] ){+.+.}-{0:0}
[  718.262551][ T6635] CPU: 0 UID: 0 PID: 6635 Comm: syz.9.27 Not tainted syzkaller #0 PREEMPT(full) 
[  718.262576][ T6635] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
[  718.262587][ T6635] Call Trace:
[  718.262595][ T6635]  <TASK>
[  718.262610][ T6635]  dump_stack_lvl+0xe8/0x150
[  718.262641][ T6635]  f2fs_handle_critical_error+0x37c/0x540
[  718.262673][ T6635]  f2fs_write_end_io+0xcdb/0xff0
[  718.262712][ T6635]  __submit_merged_bio+0x256/0x700
[  718.262744][ T6635]  f2fs_submit_page_write+0xec4/0x23e0
[  718.262801][ T6635]  ? __pfx_f2fs_submit_page_write+0x10/0x10
[  718.262832][ T6635]  ? __f2fs_is_valid_blkaddr+0xd2a/0x14f0
[  718.262867][ T6635]  do_write_page+0x40f/0xac0
[  718.262897][ T6635]  f2fs_outplace_write_data+0x11a/0x220
[  718.262923][ T6635]  f2fs_do_write_data_page+0x123b/0x16f0
[  718.262963][ T6635]  ? __pfx_f2fs_do_write_data_page+0x10/0x10
[  718.262996][ T6635]  ? __lock_acquire+0x6b5/0x2cf0
[  718.263029][ T6635]  ? release_pages+0x56c/0x5a0
[  718.263060][ T6635]  f2fs_write_single_data_page+0x906/0x18b0
[  718.263105][ T6635]  ? __pfx_f2fs_write_single_data_page+0x10/0x10
[  718.263152][ T6635]  ? folio_clear_dirty_for_io+0x1d4/0x710
[  718.263183][ T6635]  ? folio_clear_dirty_for_io+0x573/0x710
[  718.263208][ T6635]  ? folio_clear_dirty_for_io+0x1d4/0x710
[  718.263235][ T6635]  f2fs_write_data_pages+0x1a5b/0x35e0
[  718.263254][ T6635]  ? __lock_acquire+0x6b5/0x2cf0
[  718.263315][ T6635]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  718.263348][ T6635]  ? kernel_text_address+0xa5/0xe0
[  718.263402][ T6635]  ? __lock_acquire+0x6b5/0x2cf0
[  718.263450][ T6635]  ? __lock_acquire+0x6b5/0x2cf0
[  718.263493][ T6635]  ? __free_frozen_pages+0x706/0xdb0
[  718.263514][ T6635]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  718.263533][ T6635]  do_writepages+0x32e/0x550
[  718.263568][ T6635]  ? do_raw_spin_unlock+0xf5/0x210
[  718.263593][ T6635]  filemap_write_and_wait_range+0x335/0x3f0
[  718.263629][ T6635]  ? __pfx_filemap_write_and_wait_range+0x10/0x10
[  718.263697][ T6635]  ? down_write+0x16d/0x200
[  718.263729][ T6635]  ? __pfx_down_write+0x10/0x10
[  718.263766][ T6635]  f2fs_collapse_range+0x48f/0x530
[  718.263786][ T6635]  ? inode_dio_wait+0x7f/0x270
[  718.263816][ T6635]  ? __pfx_f2fs_collapse_range+0x10/0x10
[  718.263843][ T6635]  ? mnt_put_write_access_file+0xc0/0x100
[  718.263866][ T6635]  ? file_update_time_flags+0x400/0x4a0
[  718.263889][ T6635]  f2fs_fallocate+0x54d/0x9b0
[  718.263924][ T6635]  vfs_fallocate+0x669/0x7e0
[  718.263943][ T6635]  ? __fget_files+0x2a/0x420
[  718.263973][ T6635]  ? __pfx_vfs_fallocate+0x10/0x10
[  718.263991][ T6635]  ? __fget_files+0x2a/0x420
[  718.264025][ T6635]  __x64_sys_fallocate+0xc0/0x110
[  718.264050][ T6635]  do_syscall_64+0x14d/0xf80
[  718.264072][ T6635]  ? trace_irq_disable+0x3b/0x150
[  718.264087][ T6635]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  718.264106][ T6635]  ? clear_bhb_loop+0x40/0x90
[  718.264129][ T6635]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  718.264146][ T6635] RIP: 0033:0x7fef83d9c629
[  718.264165][ T6635] Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
[  718.264179][ T6635] RSP: 002b:00007fef84cd8028 EFLAGS: 00000246 ORIG_RAX: 000000000000011d
[  718.264198][ T6635] RAX: ffffffffffffffda RBX: 00007fef84015fa0 RCX: 00007fef83d9c629
[  718.264211][ T6635] RDX: 0000000000004000 RSI: 0000000000000008 RDI: 0000000000000006
[  718.264222][ T6635] RBP: 00007fef83e32b39 R08: 0000000000000000 R09: 0000000000000000
[  718.264234][ T6635] R10: 0000000000008000 R11: 0000000000000246 R12: 0000000000000000
[  718.264245][ T6635] R13: 00007fef84016038 R14: 00007fef84015fa0 R15: 00007ffea5ce5878
[  718.264278][ T6635]  </TASK>
[  718.264286][ T6635] F2FS-fs (loop9): Stopped filesystem due to reason: 3
[  718.266411][   T30] , at: process_one_work+0x87c/0x1650
[  718.275732][ T6635] CPU: 0 UID: 0 PID: 6635 Comm: syz.9.27 Not tainted syzkaller #0 PREEMPT(full) 
[  718.275756][ T6635] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
[  718.275767][ T6635] Call Trace:
[  718.275775][ T6635]  <TASK>
[  718.275783][ T6635]  dump_stack_lvl+0xe8/0x150
[  718.275814][ T6635]  f2fs_handle_critical_error+0x37c/0x540
[  718.275846][ T6635]  f2fs_write_end_io+0xcdb/0xff0
[  718.275885][ T6635]  __submit_merged_bio+0x256/0x700
[  718.275917][ T6635]  f2fs_submit_page_write+0xec4/0x23e0
[  718.275973][ T6635]  ? __pfx_f2fs_submit_page_write+0x10/0x10
[  718.276004][ T6635]  ? __f2fs_is_valid_blkaddr+0xd2a/0x14f0
[  718.276038][ T6635]  do_write_page+0x40f/0xac0
[  718.276069][ T6635]  f2fs_outplace_write_data+0x11a/0x220
[  718.276095][ T6635]  f2fs_do_write_data_page+0x123b/0x16f0
[  718.276135][ T6635]  ? __pfx_f2fs_do_write_data_page+0x10/0x10
[  718.276167][ T6635]  ? __lock_acquire+0x6b5/0x2cf0
[  718.276200][ T6635]  ? release_pages+0x56c/0x5a0
[  718.276230][ T6635]  f2fs_write_single_data_page+0x906/0x18b0
[  718.276275][ T6635]  ? __pfx_f2fs_write_single_data_page+0x10/0x10
[  718.276322][ T6635]  ? folio_clear_dirty_for_io+0x1d4/0x710
[  718.276351][ T6635]  ? folio_clear_dirty_for_io+0x573/0x710
[  718.276376][ T6635]  ? folio_clear_dirty_for_io+0x1d4/0x710
[  718.276403][ T6635]  f2fs_write_data_pages+0x1a5b/0x35e0
[  718.276423][ T6635]  ? __lock_acquire+0x6b5/0x2cf0
[  718.276481][ T6635]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  718.276514][ T6635]  ? kernel_text_address+0xa5/0xe0
[  718.276566][ T6635]  ? __lock_acquire+0x6b5/0x2cf0
[  718.276619][ T6635]  ? __lock_acquire+0x6b5/0x2cf0
[  718.276663][ T6635]  ? __free_frozen_pages+0x706/0xdb0
[  718.276683][ T6635]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  718.276703][ T6635]  do_writepages+0x32e/0x550
[  718.276738][ T6635]  ? do_raw_spin_unlock+0xf5/0x210
[  718.276763][ T6635]  filemap_write_and_wait_range+0x335/0x3f0
[  718.276794][ T6635]  ? __pfx_filemap_write_and_wait_range+0x10/0x10
[  718.276861][ T6635]  ? down_write+0x16d/0x200
[  718.276888][ T6635]  ? __pfx_down_write+0x10/0x10
[  718.276925][ T6635]  f2fs_collapse_range+0x48f/0x530
[  718.276945][ T6635]  ? inode_dio_wait+0x7f/0x270
[  718.276974][ T6635]  ? __pfx_f2fs_collapse_range+0x10/0x10
[  718.277003][ T6635]  ? mnt_put_write_access_file+0xc0/0x100
[  718.277024][ T6635]  ? file_update_time_flags+0x400/0x4a0
[  718.277048][ T6635]  f2fs_fallocate+0x54d/0x9b0
[  718.277076][ T6635]  vfs_fallocate+0x669/0x7e0
[  718.277095][ T6635]  ? __fget_files+0x2a/0x420
[  718.277125][ T6635]  ? __pfx_vfs_fallocate+0x10/0x10
[  718.277142][ T6635]  ? __fget_files+0x2a/0x420
[  718.277177][ T6635]  __x64_sys_fallocate+0xc0/0x110
[  718.277202][ T6635]  do_syscall_64+0x14d/0xf80
[  718.277223][ T6635]  ? trace_irq_disable+0x3b/0x150
[  718.277240][ T6635]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  718.277258][ T6635]  ? clear_bhb_loop+0x40/0x90
[  718.277281][ T6635]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  718.277318][ T6635] RIP: 0033:0x7fef83d9c629
[  718.277335][ T6635] Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
[  718.277349][ T6635] RSP: 002b:00007fef84cd8028 EFLAGS: 00000246 ORIG_RAX: 000000000000011d
[  718.277368][ T6635] RAX: ffffffffffffffda RBX: 00007fef84015fa0 RCX: 00007fef83d9c629
[  718.277382][ T6635] RDX: 0000000000004000 RSI: 0000000000000008 RDI: 0000000000000006
[  718.277393][ T6635] RBP: 00007fef83e32b39 R08: 0000000000000000 R09: 0000000000000000
[  718.277404][ T6635] R10: 0000000000008000 R11: 0000000000000246 R12: 0000000000000000
[  718.277416][ T6635] R13: 00007fef84016038 R14: 00007fef84015fa0 R15: 00007ffea5ce5878
[  718.277449][ T6635]  </TASK>
[  718.277456][ T6635] F2FS-fs (loop9): Stopped filesystem due to reason: 3
[  718.279501][   T30]  #2: 
[  718.288197][ T6635] CPU: 0 UID: 0 PID: 6635 Comm: syz.9.27 Not tainted syzkaller #0 PREEMPT(full) 
[  718.288222][ T6635] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
[  718.288232][ T6635] Call Trace:
[  718.288240][ T6635]  <TASK>
[  718.288248][ T6635]  dump_stack_lvl+0xe8/0x150
[  718.288277][ T6635]  f2fs_handle_critical_error+0x37c/0x540
[  718.288314][ T6635]  f2fs_write_end_io+0xcdb/0xff0
[  718.288352][ T6635]  __submit_merged_bio+0x256/0x700
[  718.288384][ T6635]  f2fs_submit_page_write+0xec4/0x23e0
[  718.288439][ T6635]  ? __pfx_f2fs_submit_page_write+0x10/0x10
[  718.288470][ T6635]  ? __f2fs_is_valid_blkaddr+0xd2a/0x14f0
[  718.288505][ T6635]  do_write_page+0x40f/0xac0
[  718.288534][ T6635]  f2fs_outplace_write_data+0x11a/0x220
[  718.288560][ T6635]  f2fs_do_write_data_page+0x123b/0x16f0
[  718.288605][ T6635]  ? __pfx_f2fs_do_write_data_page+0x10/0x10
[  718.288637][ T6635]  ? __lock_acquire+0x6b5/0x2cf0
[  718.288670][ T6635]  ? release_pages+0x56c/0x5a0
[  718.288701][ T6635]  f2fs_write_single_data_page+0x906/0x18b0
[  718.288745][ T6635]  ? __pfx_f2fs_write_single_data_page+0x10/0x10
[  718.288792][ T6635]  ? folio_clear_dirty_for_io+0x1d4/0x710
[  718.288822][ T6635]  ? folio_clear_dirty_for_io+0x573/0x710
[  718.288847][ T6635]  ? folio_clear_dirty_for_io+0x1d4/0x710
[  718.288875][ T6635]  f2fs_write_data_pages+0x1a5b/0x35e0
[  718.288894][ T6635]  ? __lock_acquire+0x6b5/0x2cf0
[  718.288953][ T6635]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  718.288986][ T6635]  ? kernel_text_address+0xa5/0xe0
[  718.289039][ T6635]  ? __lock_acquire+0x6b5/0x2cf0
[  718.289086][ T6635]  ? __lock_acquire+0x6b5/0x2cf0
[  718.289129][ T6635]  ? __free_frozen_pages+0x706/0xdb0
[  718.289149][ T6635]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  718.289168][ T6635]  do_writepages+0x32e/0x550
[  718.289203][ T6635]  ? do_raw_spin_unlock+0xf5/0x210
[  718.289228][ T6635]  filemap_write_and_wait_range+0x335/0x3f0
[  718.289258][ T6635]  ? __pfx_filemap_write_and_wait_range+0x10/0x10
[  718.289324][ T6635]  ? down_write+0x16d/0x200
[  718.289348][ T6635]  ? __pfx_down_write+0x10/0x10
[  718.289385][ T6635]  f2fs_collapse_range+0x48f/0x530
[  718.289404][ T6635]  ? inode_dio_wait+0x7f/0x270
[  718.289433][ T6635]  ? __pfx_f2fs_collapse_range+0x10/0x10
[  718.289461][ T6635]  ? mnt_put_write_access_file+0xc0/0x100
[  718.289483][ T6635]  ? file_update_time_flags+0x400/0x4a0
[  718.289507][ T6635]  f2fs_fallocate+0x54d/0x9b0
[  718.289534][ T6635]  vfs_fallocate+0x669/0x7e0
[  718.289553][ T6635]  ? __fget_files+0x2a/0x420
[  718.289582][ T6635]  ? __pfx_vfs_fallocate+0x10/0x10
[  718.289605][ T6635]  ? __fget_files+0x2a/0x420
[  718.289639][ T6635]  __x64_sys_fallocate+0xc0/0x110
[  718.289663][ T6635]  do_syscall_64+0x14d/0xf80
[  718.289685][ T6635]  ? trace_irq_disable+0x3b/0x150
[  718.289700][ T6635]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  718.289719][ T6635]  ? clear_bhb_loop+0x40/0x90
[  718.289742][ T6635]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  718.289759][ T6635] RIP: 0033:0x7fef83d9c629
[  718.289777][ T6635] Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
[  718.289792][ T6635] RSP: 002b:00007fef84cd8028 EFLAGS: 00000246 ORIG_RAX: 000000000000011d
[  718.289811][ T6635] RAX: ffffffffffffffda RBX: 00007fef84015fa0 RCX: 00007fef83d9c629
[  718.289824][ T6635] RDX: 0000000000004000 RSI: 0000000000000008 RDI: 0000000000000006
[  718.289835][ T6635] RBP: 00007fef83e32b39 R08: 0000000000000000 R09: 0000000000000000
[  718.289847][ T6635] R10: 0000000000008000 R11: 0000000000000246 R12: 0000000000000000
[  718.289858][ T6635] R13: 00007fef84016038 R14: 00007fef84015fa0 R15: 00007ffea5ce5878
[  718.289890][ T6635]  </TASK>
[  718.289898][ T6635] F2FS-fs (loop9): Stopped filesystem due to reason: 3
[  718.315314][   T30] ffffffff8fbc1630
[  718.364756][ T6635] CPU: 0 UID: 0 PID: 6635 Comm: syz.9.27 Not tainted syzkaller #0 PREEMPT(full) 
[  718.364782][ T6635] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
[  718.364793][ T6635] Call Trace:
[  718.364801][ T6635]  <TASK>
[  718.364808][ T6635]  dump_stack_lvl+0xe8/0x150
[  718.364839][ T6635]  f2fs_handle_critical_error+0x37c/0x540
[  718.364873][ T6635]  f2fs_write_end_io+0xcdb/0xff0
[  718.364911][ T6635]  __submit_merged_bio+0x256/0x700
[  718.364943][ T6635]  f2fs_submit_page_write+0xec4/0x23e0
[  718.364999][ T6635]  ? __pfx_f2fs_submit_page_write+0x10/0x10
[  718.365030][ T6635]  ? __f2fs_is_valid_blkaddr+0xd2a/0x14f0
[  718.365064][ T6635]  do_write_page+0x40f/0xac0
[  718.365094][ T6635]  f2fs_outplace_write_data+0x11a/0x220
[  718.365120][ T6635]  f2fs_do_write_data_page+0x123b/0x16f0
[  718.365160][ T6635]  ? __pfx_f2fs_do_write_data_page+0x10/0x10
[  718.365192][ T6635]  ? __lock_acquire+0x6b5/0x2cf0
[  718.365224][ T6635]  ? release_pages+0x56c/0x5a0
[  718.365255][ T6635]  f2fs_write_single_data_page+0x906/0x18b0
[  718.365298][ T6635]  ? __pfx_f2fs_write_single_data_page+0x10/0x10
[  718.365345][ T6635]  ? folio_clear_dirty_for_io+0x1d4/0x710
[  718.365375][ T6635]  ? folio_clear_dirty_for_io+0x573/0x710
[  718.365399][ T6635]  ? folio_clear_dirty_for_io+0x1d4/0x710
[  718.365426][ T6635]  f2fs_write_data_pages+0x1a5b/0x35e0
[  718.365446][ T6635]  ? __lock_acquire+0x6b5/0x2cf0
[  718.365505][ T6635]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  718.365537][ T6635]  ? kernel_text_address+0xa5/0xe0
[  718.365597][ T6635]  ? __lock_acquire+0x6b5/0x2cf0
[  718.365645][ T6635]  ? __lock_acquire+0x6b5/0x2cf0
[  718.365688][ T6635]  ? __free_frozen_pages+0x706/0xdb0
[  718.365709][ T6635]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  718.365727][ T6635]  do_writepages+0x32e/0x550
[  718.365763][ T6635]  ? do_raw_spin_unlock+0xf5/0x210
[  718.365787][ T6635]  filemap_write_and_wait_range+0x335/0x3f0
[  718.365817][ T6635]  ? __pfx_filemap_write_and_wait_range+0x10/0x10
[  718.365884][ T6635]  ? down_write+0x16d/0x200
[  718.365910][ T6635]  ? __pfx_down_write+0x10/0x10
[  718.365947][ T6635]  f2fs_collapse_range+0x48f/0x530
[  718.365968][ T6635]  ? inode_dio_wait+0x7f/0x270
[  718.365996][ T6635]  ? __pfx_f2fs_collapse_range+0x10/0x10
[  718.366024][ T6635]  ? mnt_put_write_access_file+0xc0/0x100
[  718.366047][ T6635]  ? file_update_time_flags+0x400/0x4a0
[  718.366070][ T6635]  f2fs_fallocate+0x54d/0x9b0
[  718.366097][ T6635]  vfs_fallocate+0x669/0x7e0
[  718.366116][ T6635]  ? __fget_files+0x2a/0x420
[  718.366146][ T6635]  ? __pfx_vfs_fallocate+0x10/0x10
[  718.366164][ T6635]  ? __fget_files+0x2a/0x420
[  718.366198][ T6635]  __x64_sys_fallocate+0xc0/0x110
[  718.366222][ T6635]  do_syscall_64+0x14d/0xf80
[  718.366244][ T6635]  ? trace_irq_disable+0x3b/0x150
[  718.366259][ T6635]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  718.366277][ T6635]  ? clear_bhb_loop+0x40/0x90
[  718.366300][ T6635]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  718.366318][ T6635] RIP: 0033:0x7fef83d9c629
[  718.366335][ T6635] Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
[  718.366350][ T6635] RSP: 002b:00007fef84cd8028 EFLAGS: 00000246 ORIG_RAX: 000000000000011d
[  718.366369][ T6635] RAX: ffffffffffffffda RBX: 00007fef84015fa0 RCX: 00007fef83d9c629
[  718.366382][ T6635] RDX: 0000000000004000 RSI: 0000000000000008 RDI: 0000000000000006
[  718.366394][ T6635] RBP: 00007fef83e32b39 R08: 0000000000000000 R09: 0000000000000000
[  718.366405][ T6635] R10: 0000000000008000 R11: 0000000000000246 R12: 0000000000000000
[  718.366416][ T6635] R13: 00007fef84016038 R14: 00007fef84015fa0 R15: 00007ffea5ce5878
[  718.366449][ T6635]  </TASK>
[  718.366457][ T6635] F2FS-fs (loop9): Stopped filesystem due to reason: 3
[  718.369973][   T50] Bluetooth: hci7: command tx timeout
[  718.383580][ T6635] CPU: 0 UID: 0 PID: 6635 Comm: syz.9.27 Not tainted syzkaller #0 PREEMPT(full) 
[  718.383612][ T6635] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
[  718.383623][ T6635] Call Trace:
[  718.383631][ T6635]  <TASK>
[  718.383638][ T6635]  dump_stack_lvl+0xe8/0x150
[  718.383669][ T6635]  f2fs_handle_critical_error+0x37c/0x540
[  718.383706][ T6635]  f2fs_write_end_io+0xcdb/0xff0
[  718.383745][ T6635]  __submit_merged_bio+0x256/0x700
[  718.383777][ T6635]  f2fs_submit_page_write+0xec4/0x23e0
[  718.383832][ T6635]  ? __pfx_f2fs_submit_page_write+0x10/0x10
[  718.383862][ T6635]  ? __f2fs_is_valid_blkaddr+0xd2a/0x14f0
[  718.383897][ T6635]  do_write_page+0x40f/0xac0
[  718.383926][ T6635]  f2fs_outplace_write_data+0x11a/0x220
[  718.383952][ T6635]  f2fs_do_write_data_page+0x123b/0x16f0
[  718.383992][ T6635]  ? __pfx_f2fs_do_write_data_page+0x10/0x10
[  718.384024][ T6635]  ? __lock_acquire+0x6b5/0x2cf0
[  718.384056][ T6635]  ? release_pages+0x56c/0x5a0
[  718.384087][ T6635]  f2fs_write_single_data_page+0x906/0x18b0
[  718.384131][ T6635]  ? __pfx_f2fs_write_single_data_page+0x10/0x10
[  718.384179][ T6635]  ? folio_clear_dirty_for_io+0x1d4/0x710
[  718.384208][ T6635]  ? folio_clear_dirty_for_io+0x573/0x710
[  718.384233][ T6635]  ? folio_clear_dirty_for_io+0x1d4/0x710
[  718.384260][ T6635]  f2fs_write_data_pages+0x1a5b/0x35e0
[  718.384279][ T6635]  ? __lock_acquire+0x6b5/0x2cf0
[  718.384337][ T6635]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  718.384370][ T6635]  ? kernel_text_address+0xa5/0xe0
[  718.384425][ T6635]  ? __lock_acquire+0x6b5/0x2cf0
[  718.384473][ T6635]  ? __lock_acquire+0x6b5/0x2cf0
[  718.384515][ T6635]  ? __free_frozen_pages+0x706/0xdb0
[  718.384536][ T6635]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  718.384555][ T6635]  do_writepages+0x32e/0x550
[  718.384594][ T6635]  ? do_raw_spin_unlock+0xf5/0x210
[  718.384618][ T6635]  filemap_write_and_wait_range+0x335/0x3f0
[  718.384648][ T6635]  ? __pfx_filemap_write_and_wait_range+0x10/0x10
[  718.384714][ T6635]  ? down_write+0x16d/0x200
[  718.384739][ T6635]  ? __pfx_down_write+0x10/0x10
[  718.384776][ T6635]  f2fs_collapse_range+0x48f/0x530
[  718.384796][ T6635]  ? inode_dio_wait+0x7f/0x270
[  718.384825][ T6635]  ? __pfx_f2fs_collapse_range+0x10/0x10
[  718.384853][ T6635]  ? mnt_put_write_access_file+0xc0/0x100
[  718.384875][ T6635]  ? file_update_time_flags+0x400/0x4a0
[  718.384898][ T6635]  f2fs_fallocate+0x54d/0x9b0
[  718.384925][ T6635]  vfs_fallocate+0x669/0x7e0
[  718.384944][ T6635]  ? __fget_files+0x2a/0x420
[  718.384973][ T6635]  ? __pfx_vfs_fallocate+0x10/0x10
[  718.384991][ T6635]  ? __fget_files+0x2a/0x420
[  718.385025][ T6635]  __x64_sys_fallocate+0xc0/0x110
[  718.385049][ T6635]  do_syscall_64+0x14d/0xf80
[  718.385071][ T6635]  ? trace_irq_disable+0x3b/0x150
[  718.385086][ T6635]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  718.385104][ T6635]  ? clear_bhb_loop+0x40/0x90
[  718.385126][ T6635]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  718.385144][ T6635] RIP: 0033:0x7fef83d9c629
[  718.385162][ T6635] Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
[  718.385176][ T6635] RSP: 002b:00007fef84cd8028 EFLAGS: 00000246 ORIG_RAX: 000000000000011d
[  718.385195][ T6635] RAX: ffffffffffffffda RBX: 00007fef84015fa0 RCX: 00007fef83d9c629
[  718.385208][ T6635] RDX: 0000000000004000 RSI: 0000000000000008 RDI: 0000000000000006
[  718.385219][ T6635] RBP: 00007fef83e32b39 R08: 0000000000000000 R09: 0000000000000000
[  718.385230][ T6635] R10: 0000000000008000 R11: 0000000000000246 R12: 0000000000000000
[  718.385241][ T6635] R13: 00007fef84016038 R14: 00007fef84015fa0 R15: 00007ffea5ce5878
[  718.385274][ T6635]  </TASK>
[  718.390816][ T6635] F2FS-fs (loop9): Stopped filesystem due to reason: 3
[  718.397444][   T30]  (
[  718.402969][ T6635] CPU: 0 UID: 0 PID: 6635 Comm: syz.9.27 Not tainted syzkaller #0 PREEMPT(full) 
[  718.402992][ T6635] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
[  718.403003][ T6635] Call Trace:
[  718.403011][ T6635]  <TASK>
[  718.403018][ T6635]  dump_stack_lvl+0xe8/0x150
[  718.403050][ T6635]  f2fs_handle_critical_error+0x37c/0x540
[  718.403082][ T6635]  f2fs_write_end_io+0xcdb/0xff0
[  718.403120][ T6635]  __submit_merged_bio+0x256/0x700
[  718.403153][ T6635]  f2fs_submit_page_write+0xec4/0x23e0
[  718.403208][ T6635]  ? __pfx_f2fs_submit_page_write+0x10/0x10
[  718.403239][ T6635]  ? __f2fs_is_valid_blkaddr+0xd2a/0x14f0
[  718.403273][ T6635]  do_write_page+0x40f/0xac0
[  718.403303][ T6635]  f2fs_outplace_write_data+0x11a/0x220
[  718.403328][ T6635]  f2fs_do_write_data_page+0x123b/0x16f0
[  718.403367][ T6635]  ? __pfx_f2fs_do_write_data_page+0x10/0x10
[  718.403399][ T6635]  ? __lock_acquire+0x6b5/0x2cf0
[  718.403432][ T6635]  ? release_pages+0x56c/0x5a0
[  718.403461][ T6635]  f2fs_write_single_data_page+0x906/0x18b0
[  718.403505][ T6635]  ? __pfx_f2fs_write_single_data_page+0x10/0x10
[  718.403552][ T6635]  ? folio_clear_dirty_for_io+0x1d4/0x710
[  718.403587][ T6635]  ? folio_clear_dirty_for_io+0x573/0x710
[  718.403612][ T6635]  ? folio_clear_dirty_for_io+0x1d4/0x710
[  718.403640][ T6635]  f2fs_write_data_pages+0x1a5b/0x35e0
[  718.403659][ T6635]  ? __lock_acquire+0x6b5/0x2cf0
[  718.403722][ T6635]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  718.403755][ T6635]  ? kernel_text_address+0xa5/0xe0
[  718.403808][ T6635]  ? __lock_acquire+0x6b5/0x2cf0
[  718.403857][ T6635]  ? __lock_acquire+0x6b5/0x2cf0
[  718.403900][ T6635]  ? __free_frozen_pages+0x706/0xdb0
[  718.403921][ T6635]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  718.403940][ T6635]  do_writepages+0x32e/0x550
[  718.403975][ T6635]  ? do_raw_spin_unlock+0xf5/0x210
[  718.404000][ T6635]  filemap_write_and_wait_range+0x335/0x3f0
[  718.404031][ T6635]  ? __pfx_filemap_write_and_wait_range+0x10/0x10
[  718.404099][ T6635]  ? down_write+0x16d/0x200
[  718.404124][ T6635]  ? __pfx_down_write+0x10/0x10
[  718.404161][ T6635]  f2fs_collapse_range+0x48f/0x530
[  718.404180][ T6635]  ? inode_dio_wait+0x7f/0x270
[  718.404210][ T6635]  ? __pfx_f2fs_collapse_range+0x10/0x10
[  718.404238][ T6635]  ? mnt_put_write_access_file+0xc0/0x100
[  718.404260][ T6635]  ? file_update_time_flags+0x400/0x4a0
[  718.404283][ T6635]  f2fs_fallocate+0x54d/0x9b0
[  718.404311][ T6635]  vfs_fallocate+0x669/0x7e0
[  718.404329][ T6635]  ? __fget_files+0x2a/0x420
[  718.404359][ T6635]  ? __pfx_vfs_fallocate+0x10/0x10
[  718.404377][ T6635]  ? __fget_files+0x2a/0x420
[  718.404414][ T6635]  __x64_sys_fallocate+0xc0/0x110
[  718.404439][ T6635]  do_syscall_64+0x14d/0xf80
[  718.404460][ T6635]  ? trace_irq_disable+0x3b/0x150
[  718.404476][ T6635]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  718.404494][ T6635]  ? clear_bhb_loop+0x40/0x90
[  718.404516][ T6635]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  718.404535][ T6635] RIP: 0033:0x7fef83d9c629
[  718.404553][ T6635] Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
[  718.404567][ T6635] RSP: 002b:00007fef84cd8028 EFLAGS: 00000246 ORIG_RAX: 000000000000011d
[  718.404591][ T6635] RAX: ffffffffffffffda RBX: 00007fef84015fa0 RCX: 00007fef83d9c629
[  718.404604][ T6635] RDX: 0000000000004000 RSI: 0000000000000008 RDI: 0000000000000006
[  718.404615][ T6635] RBP: 00007fef83e32b39 R08: 0000000000000000 R09: 0000000000000000
[  718.404627][ T6635] R10: 0000000000008000 R11: 0000000000000246 R12: 0000000000000000
[  718.404638][ T6635] R13: 00007fef84016038 R14: 00007fef84015fa0 R15: 00007ffea5ce5878
[  718.404671][ T6635]  </TASK>
[  718.410418][ T6635] F2FS-fs (loop9): Stopped filesystem due to reason: 3
[  718.416872][   T30] pernet_ops_rwsem){++++}-{4:4}, at: cleanup_net+0xf4/0x800
[  718.422426][ T6635] CPU: 0 UID: 0 PID: 6635 Comm: syz.9.27 Not tainted syzkaller #0 PREEMPT(full) 
[  718.422448][ T6635] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
[  718.422459][ T6635] Call Trace:
[  718.422467][ T6635]  <TASK>
[  718.422474][ T6635]  dump_stack_lvl+0xe8/0x150
[  718.422504][ T6635]  f2fs_handle_critical_error+0x37c/0x540
[  718.422538][ T6635]  f2fs_write_end_io+0xcdb/0xff0
[  718.422578][ T6635]  __submit_merged_bio+0x256/0x700
[  718.422617][ T6635]  f2fs_submit_page_write+0xec4/0x23e0
[  718.422675][ T6635]  ? __pfx_f2fs_submit_page_write+0x10/0x10
[  718.422707][ T6635]  ? __f2fs_is_valid_blkaddr+0xd2a/0x14f0
[  718.422742][ T6635]  do_write_page+0x40f/0xac0
[  718.422772][ T6635]  f2fs_outplace_write_data+0x11a/0x220
[  718.422799][ T6635]  f2fs_do_write_data_page+0x123b/0x16f0
[  718.422840][ T6635]  ? __pfx_f2fs_do_write_data_page+0x10/0x10
[  718.422874][ T6635]  ? __lock_acquire+0x6b5/0x2cf0
[  718.422907][ T6635]  ? release_pages+0x56c/0x5a0
[  718.422939][ T6635]  f2fs_write_single_data_page+0x906/0x18b0
[  718.422984][ T6635]  ? __pfx_f2fs_write_single_data_page+0x10/0x10
[  718.423033][ T6635]  ? folio_clear_dirty_for_io+0x1d4/0x710
[  718.423064][ T6635]  ? folio_clear_dirty_for_io+0x573/0x710
[  718.423089][ T6635]  ? folio_clear_dirty_for_io+0x1d4/0x710
[  718.423118][ T6635]  f2fs_write_data_pages+0x1a5b/0x35e0
[  718.423138][ T6635]  ? __lock_acquire+0x6b5/0x2cf0
[  718.423200][ T6635]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  718.423234][ T6635]  ? kernel_text_address+0xa5/0xe0
[  718.423288][ T6635]  ? __lock_acquire+0x6b5/0x2cf0
[  718.423337][ T6635]  ? __lock_acquire+0x6b5/0x2cf0
[  718.423380][ T6635]  ? __free_frozen_pages+0x706/0xdb0
[  718.423401][ T6635]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  718.423421][ T6635]  do_writepages+0x32e/0x550
[  718.423456][ T6635]  ? do_raw_spin_unlock+0xf5/0x210
[  718.423480][ T6635]  filemap_write_and_wait_range+0x335/0x3f0
[  718.423512][ T6635]  ? __pfx_filemap_write_and_wait_range+0x10/0x10
[  718.423584][ T6635]  ? down_write+0x16d/0x200
[  718.423610][ T6635]  ? __pfx_down_write+0x10/0x10
[  718.423648][ T6635]  f2fs_collapse_range+0x48f/0x530
[  718.423667][ T6635]  ? inode_dio_wait+0x7f/0x270
[  718.423701][ T6635]  ? __pfx_f2fs_collapse_range+0x10/0x10
[  718.423729][ T6635]  ? mnt_put_write_access_file+0xc0/0x100
[  718.423752][ T6635]  ? file_update_time_flags+0x400/0x4a0
[  718.423776][ T6635]  f2fs_fallocate+0x54d/0x9b0
[  718.423804][ T6635]  vfs_fallocate+0x669/0x7e0
[  718.423825][ T6635]  ? __fget_files+0x2a/0x420
[  718.423856][ T6635]  ? __pfx_vfs_fallocate+0x10/0x10
[  718.423875][ T6635]  ? __fget_files+0x2a/0x420
[  718.423909][ T6635]  __x64_sys_fallocate+0xc0/0x110
[  718.423935][ T6635]  do_syscall_64+0x14d/0xf80
[  718.423957][ T6635]  ? trace_irq_disable+0x3b/0x150
[  718.423974][ T6635]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  718.423993][ T6635]  ? clear_bhb_loop+0x40/0x90
[  718.424016][ T6635]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  718.424035][ T6635] RIP: 0033:0x7fef83d9c629
[  718.424054][ T6635] Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
[  718.424069][ T6635] RSP: 002b:00007fef84cd8028 EFLAGS: 00000246 ORIG_RAX: 000000000000011d
[  718.424089][ T6635] RAX: ffffffffffffffda RBX: 00007fef84015fa0 RCX: 00007fef83d9c629
[  718.424103][ T6635] RDX: 0000000000004000 RSI: 0000000000000008 RDI: 0000000000000006
[  718.424115][ T6635] RBP: 00007fef83e32b39 R08: 0000000000000000 R09: 0000000000000000
[  718.424127][ T6635] R10: 0000000000008000 R11: 0000000000000246 R12: 0000000000000000
[  718.424139][ T6635] R13: 00007fef84016038 R14: 00007fef84015fa0 R15: 00007ffea5ce5878
[  718.424174][ T6635]  </TASK>
[  718.424182][ T6635] F2FS-fs (loop9): Stopped filesystem due to reason: 3
[  718.427424][   T30]  #3: ffff888077491528 (&wg->device_update_lock){+.+.}-{4:4}, at: wg_destruct+0x116/0x310
[  718.427493][   T30] 3 locks held by kworker/1:6/6182:
[  718.427506][   T30]  #0: ffff88801b06b548 ((wq_completion)events){+.+.}-{0:0}, at: process_one_work+0x855/0x1650
[  718.427560][   T30]  #1: ffffc90003197c40 (deferred_process_work){+.+.}-{0:0}, at: process_one_work+0x87c/0x1650
[  718.427611][   T30]  #2: ffffffff8fbd0408 (rtnl_mutex){+.+.}-{4:4}, at: switchdev_deferred_process_work+0xe/0x20
[  718.427677][   T30] 10 locks held by syz.9.27/6635:
[  718.427689][   T30] 2 locks held by syz.9.27/6664:
[  718.427701][   T30]  #0: ffff8880335f2420 (sb_writers#12){.+.+}-{0:0}, at: vfs_fallocate+0x5f0/0x7e0
[  718.427757][   T30]  #1: ffff88805758af60 (&sb->s_type->i_mutex_key#25){+.+.}-{4:4}, at: f2fs_fallocate+0x24e/0x9b0
[  718.427815][   T30] 1 lock held by syz-executor/6768:
[  718.427826][   T30]  #0: ffffffff8fbd0408 (rtnl_mutex){+.+.}-{4:4}, at: tun_chr_close+0x3e/0x1c0
[  718.427876][   T30] 1 lock held by syz-executor/6784:
[  718.457062][ T6635] CPU: 0 UID: 0 PID: 6635 Comm: syz.9.27 Not tainted syzkaller #0 PREEMPT(full) 
[  718.457087][ T6635] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
[  718.457098][ T6635] Call Trace:
[  718.457106][ T6635]  <TASK>
[  718.457114][ T6635]  dump_stack_lvl+0xe8/0x150
[  718.457145][ T6635]  f2fs_handle_critical_error+0x37c/0x540
[  718.457177][ T6635]  f2fs_write_end_io+0xcdb/0xff0
[  718.457216][ T6635]  __submit_merged_bio+0x256/0x700
[  718.457248][ T6635]  f2fs_submit_page_write+0xec4/0x23e0
[  718.457324][ T6635]  ? __pfx_f2fs_submit_page_write+0x10/0x10
[  718.457355][ T6635]  ? __f2fs_is_valid_blkaddr+0xd2a/0x14f0
[  718.457390][ T6635]  do_write_page+0x40f/0xac0
[  718.457419][ T6635]  f2fs_outplace_write_data+0x11a/0x220
[  718.457444][ T6635]  f2fs_do_write_data_page+0x123b/0x16f0
[  718.457484][ T6635]  ? __pfx_f2fs_do_write_data_page+0x10/0x10
[  718.457516][ T6635]  ? __lock_acquire+0x6b5/0x2cf0
[  718.457549][ T6635]  ? release_pages+0x56c/0x5a0
[  718.457594][ T6635]  f2fs_write_single_data_page+0x906/0x18b0
[  718.457638][ T6635]  ? __pfx_f2fs_write_single_data_page+0x10/0x10
[  718.457685][ T6635]  ? folio_clear_dirty_for_io+0x1d4/0x710
[  718.457715][ T6635]  ? folio_clear_dirty_for_io+0x573/0x710
[  718.457739][ T6635]  ? folio_clear_dirty_for_io+0x1d4/0x710
[  718.457767][ T6635]  f2fs_write_data_pages+0x1a5b/0x35e0
[  718.457786][ T6635]  ? __lock_acquire+0x6b5/0x2cf0
[  718.457845][ T6635]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  718.457878][ T6635]  ? kernel_text_address+0xa5/0xe0
[  718.457930][ T6635]  ? __lock_acquire+0x6b5/0x2cf0
[  718.457979][ T6635]  ? __lock_acquire+0x6b5/0x2cf0
[  718.458022][ T6635]  ? __free_frozen_pages+0x706/0xdb0
[  718.458043][ T6635]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  718.458062][ T6635]  do_writepages+0x32e/0x550
[  718.458097][ T6635]  ? do_raw_spin_unlock+0xf5/0x210
[  718.458121][ T6635]  filemap_write_and_wait_range+0x335/0x3f0
[  718.458152][ T6635]  ? __pfx_filemap_write_and_wait_range+0x10/0x10
[  718.458218][ T6635]  ? down_write+0x16d/0x200
[  718.458244][ T6635]  ? __pfx_down_write+0x10/0x10
[  718.458280][ T6635]  f2fs_collapse_range+0x48f/0x530
[  718.458300][ T6635]  ? inode_dio_wait+0x7f/0x270
[  718.458329][ T6635]  ? __pfx_f2fs_collapse_range+0x10/0x10
[  718.458357][ T6635]  ? mnt_put_write_access_file+0xc0/0x100
[  718.458378][ T6635]  ? file_update_time_flags+0x400/0x4a0
[  718.458402][ T6635]  f2fs_fallocate+0x54d/0x9b0
[  718.458429][ T6635]  vfs_fallocate+0x669/0x7e0
[  718.458448][ T6635]  ? __fget_files+0x2a/0x420
[  718.458478][ T6635]  ? __pfx_vfs_fallocate+0x10/0x10
[  718.458496][ T6635]  ? __fget_files+0x2a/0x420
[  718.458530][ T6635]  __x64_sys_fallocate+0xc0/0x110
[  718.458554][ T6635]  do_syscall_64+0x14d/0xf80
[  718.458581][ T6635]  ? trace_irq_disable+0x3b/0x150
[  718.458596][ T6635]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  718.458615][ T6635]  ? clear_bhb_loop+0x40/0x90
[  718.458638][ T6635]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  718.458655][ T6635] RIP: 0033:0x7fef83d9c629
[  718.458674][ T6635] Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
[  718.458689][ T6635] RSP: 002b:00007fef84cd8028 EFLAGS: 00000246 ORIG_RAX: 000000000000011d
[  718.458707][ T6635] RAX: ffffffffffffffda RBX: 00007fef84015fa0 RCX: 00007fef83d9c629
[  718.458721][ T6635] RDX: 0000000000004000 RSI: 0000000000000008 RDI: 0000000000000006
[  718.458731][ T6635] RBP: 00007fef83e32b39 R08: 0000000000000000 R09: 0000000000000000
[  718.458743][ T6635] R10: 0000000000008000 R11: 0000000000000246 R12: 0000000000000000
[  718.458754][ T6635] R13: 00007fef84016038 R14: 00007fef84015fa0 R15: 00007ffea5ce5878
[  718.458788][ T6635]  </TASK>
[  718.458795][ T6635] F2FS-fs (loop9): Stopped filesystem due to reason: 3
[  718.460299][   T30]  #0: 
[  718.555125][ T6635] CPU: 0 UID: 0 PID: 6635 Comm: syz.9.27 Not tainted syzkaller #0 PREEMPT(full) 
[  718.555153][ T6635] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
[  718.555165][ T6635] Call Trace:
[  718.555173][ T6635]  <TASK>
[  718.555181][ T6635]  dump_stack_lvl+0xe8/0x150
[  718.555213][ T6635]  f2fs_handle_critical_error+0x37c/0x540
[  718.555245][ T6635]  f2fs_write_end_io+0xcdb/0xff0
[  718.555284][ T6635]  __submit_merged_bio+0x256/0x700
[  718.555316][ T6635]  f2fs_submit_page_write+0xec4/0x23e0
[  718.555371][ T6635]  ? __pfx_f2fs_submit_page_write+0x10/0x10
[  718.555402][ T6635]  ? __f2fs_is_valid_blkaddr+0xd2a/0x14f0
[  718.555451][ T6635]  do_write_page+0x40f/0xac0
[  718.555481][ T6635]  f2fs_outplace_write_data+0x11a/0x220
[  718.555506][ T6635]  f2fs_do_write_data_page+0x123b/0x16f0
[  718.555545][ T6635]  ? __pfx_f2fs_do_write_data_page+0x10/0x10
[  718.555588][ T6635]  ? __lock_acquire+0x6b5/0x2cf0
[  718.555621][ T6635]  ? release_pages+0x56c/0x5a0
[  718.555651][ T6635]  f2fs_write_single_data_page+0x906/0x18b0
[  718.555695][ T6635]  ? __pfx_f2fs_write_single_data_page+0x10/0x10
[  718.555742][ T6635]  ? folio_clear_dirty_for_io+0x1d4/0x710
[  718.555772][ T6635]  ? folio_clear_dirty_for_io+0x573/0x710
[  718.555797][ T6635]  ? folio_clear_dirty_for_io+0x1d4/0x710
[  718.555824][ T6635]  f2fs_write_data_pages+0x1a5b/0x35e0
[  718.555842][ T6635]  ? __lock_acquire+0x6b5/0x2cf0
[  718.555902][ T6635]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  718.555934][ T6635]  ? kernel_text_address+0xa5/0xe0
[  718.555987][ T6635]  ? __lock_acquire+0x6b5/0x2cf0
[  718.556041][ T6635]  ? __lock_acquire+0x6b5/0x2cf0
[  718.556085][ T6635]  ? __free_frozen_pages+0x706/0xdb0
[  718.556106][ T6635]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  718.556125][ T6635]  do_writepages+0x32e/0x550
[  718.556160][ T6635]  ? do_raw_spin_unlock+0xf5/0x210
[  718.556185][ T6635]  filemap_write_and_wait_range+0x335/0x3f0
[  718.556215][ T6635]  ? __pfx_filemap_write_and_wait_range+0x10/0x10
[  718.556282][ T6635]  ? down_write+0x16d/0x200
[  718.556309][ T6635]  ? __pfx_down_write+0x10/0x10
[  718.556344][ T6635]  f2fs_collapse_range+0x48f/0x530
[  718.556365][ T6635]  ? inode_dio_wait+0x7f/0x270
[  718.556394][ T6635]  ? __pfx_f2fs_collapse_range+0x10/0x10
[  718.556422][ T6635]  ? mnt_put_write_access_file+0xc0/0x100
[  718.556443][ T6635]  ? file_update_time_flags+0x400/0x4a0
[  718.556467][ T6635]  f2fs_fallocate+0x54d/0x9b0
[  718.556495][ T6635]  vfs_fallocate+0x669/0x7e0
[  718.556512][ T6635]  ? __fget_files+0x2a/0x420
[  718.556539][ T6635]  ? __pfx_vfs_fallocate+0x10/0x10
[  718.556557][ T6635]  ? __fget_files+0x2a/0x420
[  718.556595][ T6635]  __x64_sys_fallocate+0xc0/0x110
[  718.556620][ T6635]  do_syscall_64+0x14d/0xf80
[  718.556642][ T6635]  ? trace_irq_disable+0x3b/0x150
[  718.556658][ T6635]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  718.556677][ T6635]  ? clear_bhb_loop+0x40/0x90
[  718.556696][ T6635]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  718.556713][ T6635] RIP: 0033:0x7fef83d9c629
[  718.556732][ T6635] Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
[  718.556747][ T6635] RSP: 002b:00007fef84cd8028 EFLAGS: 00000246 ORIG_RAX: 000000000000011d
[  718.556767][ T6635] RAX: ffffffffffffffda RBX: 00007fef84015fa0 RCX: 00007fef83d9c629
[  718.556780][ T6635] RDX: 0000000000004000 RSI: 0000000000000008 RDI: 0000000000000006
[  718.556791][ T6635] RBP: 00007fef83e32b39 R08: 0000000000000000 R09: 0000000000000000
[  718.556802][ T6635] R10: 0000000000008000 R11: 0000000000000246 R12: 0000000000000000
[  718.556813][ T6635] R13: 00007fef84016038 R14: 00007fef84015fa0 R15: 00007ffea5ce5878
[  718.556846][ T6635]  </TASK>
[  718.556855][ T6635] F2FS-fs (loop9): Stopped filesystem due to reason: 3
[  718.564698][   T30] ffffffff8fbd0408
[  718.624620][ T6635] CPU: 0 UID: 0 PID: 6635 Comm: syz.9.27 Not tainted syzkaller #0 PREEMPT(full) 
[  718.624647][ T6635] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
[  718.624658][ T6635] Call Trace:
[  718.624666][ T6635]  <TASK>
[  718.624674][ T6635]  dump_stack_lvl+0xe8/0x150
[  718.624705][ T6635]  f2fs_handle_critical_error+0x37c/0x540
[  718.624738][ T6635]  f2fs_write_end_io+0xcdb/0xff0
[  718.624774][ T6635]  __submit_merged_bio+0x256/0x700
[  718.624805][ T6635]  f2fs_submit_page_write+0xec4/0x23e0
[  718.624856][ T6635]  ? __pfx_f2fs_submit_page_write+0x10/0x10
[  718.624885][ T6635]  ? __f2fs_is_valid_blkaddr+0xd2a/0x14f0
[  718.624918][ T6635]  do_write_page+0x40f/0xac0
[  718.624946][ T6635]  f2fs_outplace_write_data+0x11a/0x220
[  718.624971][ T6635]  f2fs_do_write_data_page+0x123b/0x16f0
[  718.625010][ T6635]  ? __pfx_f2fs_do_write_data_page+0x10/0x10
[  718.625040][ T6635]  ? __lock_acquire+0x6b5/0x2cf0
[  718.625071][ T6635]  ? release_pages+0x56c/0x5a0
[  718.625100][ T6635]  f2fs_write_single_data_page+0x906/0x18b0
[  718.625141][ T6635]  ? __pfx_f2fs_write_single_data_page+0x10/0x10
[  718.625186][ T6635]  ? folio_clear_dirty_for_io+0x1d4/0x710
[  718.625214][ T6635]  ? folio_clear_dirty_for_io+0x573/0x710
[  718.625238][ T6635]  ? folio_clear_dirty_for_io+0x1d4/0x710
[  718.625264][ T6635]  f2fs_write_data_pages+0x1a5b/0x35e0
[  718.625283][ T6635]  ? __lock_acquire+0x6b5/0x2cf0
[  718.625336][ T6635]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  718.625366][ T6635]  ? kernel_text_address+0xa5/0xe0
[  718.625414][ T6635]  ? __lock_acquire+0x6b5/0x2cf0
[  718.625458][ T6635]  ? __lock_acquire+0x6b5/0x2cf0
[  718.625499][ T6635]  ? __free_frozen_pages+0x706/0xdb0
[  718.625518][ T6635]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  718.625537][ T6635]  do_writepages+0x32e/0x550
[  718.625576][ T6635]  ? do_raw_spin_unlock+0xf5/0x210
[  718.625599][ T6635]  filemap_write_and_wait_range+0x335/0x3f0
[  718.625628][ T6635]  ? __pfx_filemap_write_and_wait_range+0x10/0x10
[  718.625691][ T6635]  ? down_write+0x16d/0x200
[  718.625715][ T6635]  ? __pfx_down_write+0x10/0x10
[  718.625751][ T6635]  f2fs_collapse_range+0x48f/0x530
[  718.625771][ T6635]  ? inode_dio_wait+0x7f/0x270
[  718.625799][ T6635]  ? __pfx_f2fs_collapse_range+0x10/0x10
[  718.625825][ T6635]  ? mnt_put_write_access_file+0xc0/0x100
[  718.625847][ T6635]  ? file_update_time_flags+0x400/0x4a0
[  718.625869][ T6635]  f2fs_fallocate+0x54d/0x9b0
[  718.625896][ T6635]  vfs_fallocate+0x669/0x7e0
[  718.625914][ T6635]  ? __fget_files+0x2a/0x420
[  718.625943][ T6635]  ? __pfx_vfs_fallocate+0x10/0x10
[  718.625960][ T6635]  ? __fget_files+0x2a/0x420
[  718.625993][ T6635]  __x64_sys_fallocate+0xc0/0x110
[  718.626017][ T6635]  do_syscall_64+0x14d/0xf80
[  718.626039][ T6635]  ? trace_irq_disable+0x3b/0x150
[  718.626055][ T6635]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  718.626073][ T6635]  ? clear_bhb_loop+0x40/0x90
[  718.626094][ T6635]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  718.626111][ T6635] RIP: 0033:0x7fef83d9c629
[  718.626130][ T6635] Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
[  718.626145][ T6635] RSP: 002b:00007fef84cd8028 EFLAGS: 00000246 ORIG_RAX: 000000000000011d
[  718.626164][ T6635] RAX: ffffffffffffffda RBX: 00007fef84015fa0 RCX: 00007fef83d9c629
[  718.626177][ T6635] RDX: 0000000000004000 RSI: 0000000000000008 RDI: 0000000000000006
[  718.626189][ T6635] RBP: 00007fef83e32b39 R08: 0000000000000000 R09: 0000000000000000
[  718.626199][ T6635] R10: 0000000000008000 R11: 0000000000000246 R12: 0000000000000000
[  718.626210][ T6635] R13: 00007fef84016038 R14: 00007fef84015fa0 R15: 00007ffea5ce5878
[  718.626241][ T6635]  </TASK>
[  718.626249][ T6635] F2FS-fs (loop9): Stopped filesystem due to reason: 3
[  718.627848][   T30]  (rtnl_mutex
[  718.644282][ T6635] CPU: 0 UID: 0 PID: 6635 Comm: syz.9.27 Not tainted syzkaller #0 PREEMPT(full) 
[  718.644307][ T6635] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
[  718.644319][ T6635] Call Trace:
[  718.644327][ T6635]  <TASK>
[  718.644335][ T6635]  dump_stack_lvl+0xe8/0x150
[  718.644365][ T6635]  f2fs_handle_critical_error+0x37c/0x540
[  718.644398][ T6635]  f2fs_write_end_io+0xcdb/0xff0
[  718.644442][ T6635]  __submit_merged_bio+0x256/0x700
[  718.644475][ T6635]  f2fs_submit_page_write+0xec4/0x23e0
[  718.644532][ T6635]  ? __pfx_f2fs_submit_page_write+0x10/0x10
[  718.644569][ T6635]  ? __f2fs_is_valid_blkaddr+0xd2a/0x14f0
[  718.644604][ T6635]  do_write_page+0x40f/0xac0
[  718.644634][ T6635]  f2fs_outplace_write_data+0x11a/0x220
[  718.644659][ T6635]  f2fs_do_write_data_page+0x123b/0x16f0
[  718.644700][ T6635]  ? __pfx_f2fs_do_write_data_page+0x10/0x10
[  718.644732][ T6635]  ? __lock_acquire+0x6b5/0x2cf0
[  718.644765][ T6635]  ? release_pages+0x56c/0x5a0
[  718.644794][ T6635]  f2fs_write_single_data_page+0x906/0x18b0
[  718.644838][ T6635]  ? __pfx_f2fs_write_single_data_page+0x10/0x10
[  718.644885][ T6635]  ? folio_clear_dirty_for_io+0x1d4/0x710
[  718.644915][ T6635]  ? folio_clear_dirty_for_io+0x573/0x710
[  718.644939][ T6635]  ? folio_clear_dirty_for_io+0x1d4/0x710
[  718.644966][ T6635]  f2fs_write_data_pages+0x1a5b/0x35e0
[  718.644985][ T6635]  ? __lock_acquire+0x6b5/0x2cf0
[  718.645044][ T6635]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  718.645077][ T6635]  ? kernel_text_address+0xa5/0xe0
[  718.645129][ T6635]  ? __lock_acquire+0x6b5/0x2cf0
[  718.645178][ T6635]  ? __lock_acquire+0x6b5/0x2cf0
[  718.645221][ T6635]  ? __free_frozen_pages+0x706/0xdb0
[  718.645242][ T6635]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  718.645261][ T6635]  do_writepages+0x32e/0x550
[  718.645296][ T6635]  ? do_raw_spin_unlock+0xf5/0x210
[  718.645320][ T6635]  filemap_write_and_wait_range+0x335/0x3f0
[  718.645349][ T6635]  ? __pfx_filemap_write_and_wait_range+0x10/0x10
[  718.645416][ T6635]  ? down_write+0x16d/0x200
[  718.645440][ T6635]  ? __pfx_down_write+0x10/0x10
[  718.645477][ T6635]  f2fs_collapse_range+0x48f/0x530
[  718.645497][ T6635]  ? inode_dio_wait+0x7f/0x270
[  718.645526][ T6635]  ? __pfx_f2fs_collapse_range+0x10/0x10
[  718.645558][ T6635]  ? mnt_put_write_access_file+0xc0/0x100
[  718.645581][ T6635]  ? file_update_time_flags+0x400/0x4a0
[  718.645604][ T6635]  f2fs_fallocate+0x54d/0x9b0
[  718.645631][ T6635]  vfs_fallocate+0x669/0x7e0
[  718.645650][ T6635]  ? __fget_files+0x2a/0x420
[  718.645680][ T6635]  ? __pfx_vfs_fallocate+0x10/0x10
[  718.645698][ T6635]  ? __fget_files+0x2a/0x420
[  718.645732][ T6635]  __x64_sys_fallocate+0xc0/0x110
[  718.645757][ T6635]  do_syscall_64+0x14d/0xf80
[  718.645779][ T6635]  ? trace_irq_disable+0x3b/0x150
[  718.645794][ T6635]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  718.645813][ T6635]  ? clear_bhb_loop+0x40/0x90
[  718.645835][ T6635]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  718.645853][ T6635] RIP: 0033:0x7fef83d9c629
[  718.645871][ T6635] Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
[  718.645886][ T6635] RSP: 002b:00007fef84cd8028 EFLAGS: 00000246 ORIG_RAX: 000000000000011d
[  718.645905][ T6635] RAX: ffffffffffffffda RBX: 00007fef84015fa0 RCX: 00007fef83d9c629
[  718.645918][ T6635] RDX: 0000000000004000 RSI: 0000000000000008 RDI: 0000000000000006
[  718.645929][ T6635] RBP: 00007fef83e32b39 R08: 0000000000000000 R09: 0000000000000000
[  718.645940][ T6635] R10: 0000000000008000 R11: 0000000000000246 R12: 0000000000000000
[  718.645951][ T6635] R13: 00007fef84016038 R14: 00007fef84015fa0 R15: 00007ffea5ce5878
[  718.645985][ T6635]  </TASK>
[  718.651512][ T6635] F2FS-fs (loop9): Stopped filesystem due to reason: 3
[  718.654672][   T30] ){+.+.}-{4:4}, at: tun_chr_close+0x3e/0x1c0
[  718.654709][   T30] 2 locks held by syz-executor/6794:
[  718.654721][   T30]  #0: ffffffff8fbd0408 (rtnl_mutex){+.+.}-{4:4}, at: tun_chr_close+0x3e/0x1c0
[  718.654769][   T30]  #1: ffffffff8e766578 (rcu_state.exp_mutex){+.+.}-{4:4}, at: synchronize_rcu_expedited+0x38d/0x770
[  718.654832][   T30] 1 lock held by syz-executor/6848:
[  718.654845][   T30]  #0: ffffffff8fbd0408 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_newlink+0x8a1/0x1be0
[  718.654896][   T30] 2 locks held by syz-executor/6856:
[  718.654908][   T30]  #0: ffffffff8fbc1630 (pernet_ops_rwsem){++++}-{4:4}, at: copy_net_ns+0x4f7/0x730
[  718.654957][   T30]  #1: ffffffff8fbd0408 (rtnl_mutex){+.+.}-{4:4}, at: register_netdev+0x18/0x60
[  718.655011][   T30] 1 lock held by syz-executor/6861:
[  718.655022][   T30]  #0: ffffffff8fbd0408 (rtnl_mutex){+.+.}-{4:4}, at: __tun_chr_ioctl+0x3bc/0x1e30
[  718.655074][   T30] 2 locks held by syz-executor/6864:
[  718.655085][   T30]  #0: ffffffff90120250 (&ops->srcu#2){.+.+}-{0:0}, at: rtnl_link_ops_get+0x23/0x250
[  718.694622][ T6635] CPU: 0 UID: 0 PID: 6635 Comm: syz.9.27 Not tainted syzkaller #0 PREEMPT(full) 
[  718.694648][ T6635] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
[  718.694659][ T6635] Call Trace:
[  718.694667][ T6635]  <TASK>
[  718.694675][ T6635]  dump_stack_lvl+0xe8/0x150
[  718.694707][ T6635]  f2fs_handle_critical_error+0x37c/0x540
[  718.694740][ T6635]  f2fs_write_end_io+0xcdb/0xff0
[  718.694779][ T6635]  __submit_merged_bio+0x256/0x700
[  718.694811][ T6635]  f2fs_submit_page_write+0xec4/0x23e0
[  718.694867][ T6635]  ? __pfx_f2fs_submit_page_write+0x10/0x10
[  718.694898][ T6635]  ? __f2fs_is_valid_blkaddr+0xd2a/0x14f0
[  718.694931][ T6635]  do_write_page+0x40f/0xac0
[  718.694961][ T6635]  f2fs_outplace_write_data+0x11a/0x220
[  718.694987][ T6635]  f2fs_do_write_data_page+0x123b/0x16f0
[  718.695028][ T6635]  ? __pfx_f2fs_do_write_data_page+0x10/0x10
[  718.695061][ T6635]  ? __lock_acquire+0x6b5/0x2cf0
[  718.695094][ T6635]  ? release_pages+0x56c/0x5a0
[  718.695123][ T6635]  f2fs_write_single_data_page+0x906/0x18b0
[  718.695168][ T6635]  ? __pfx_f2fs_write_single_data_page+0x10/0x10
[  718.695215][ T6635]  ? folio_clear_dirty_for_io+0x1d4/0x710
[  718.695245][ T6635]  ? folio_clear_dirty_for_io+0x573/0x710
[  718.695270][ T6635]  ? folio_clear_dirty_for_io+0x1d4/0x710
[  718.695297][ T6635]  f2fs_write_data_pages+0x1a5b/0x35e0
[  718.695315][ T6635]  ? __lock_acquire+0x6b5/0x2cf0
[  718.695375][ T6635]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  718.695408][ T6635]  ? kernel_text_address+0xa5/0xe0
[  718.695459][ T6635]  ? __lock_acquire+0x6b5/0x2cf0
[  718.695507][ T6635]  ? __lock_acquire+0x6b5/0x2cf0
[  718.695556][ T6635]  ? __free_frozen_pages+0x706/0xdb0
[  718.695576][ T6635]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  718.695596][ T6635]  do_writepages+0x32e/0x550
[  718.695631][ T6635]  ? do_raw_spin_unlock+0xf5/0x210
[  718.695655][ T6635]  filemap_write_and_wait_range+0x335/0x3f0
[  718.695686][ T6635]  ? __pfx_filemap_write_and_wait_range+0x10/0x10
[  718.695753][ T6635]  ? down_write+0x16d/0x200
[  718.695779][ T6635]  ? __pfx_down_write+0x10/0x10
[  718.695816][ T6635]  f2fs_collapse_range+0x48f/0x530
[  718.695835][ T6635]  ? inode_dio_wait+0x7f/0x270
[  718.695865][ T6635]  ? __pfx_f2fs_collapse_range+0x10/0x10
[  718.695893][ T6635]  ? mnt_put_write_access_file+0xc0/0x100
[  718.695916][ T6635]  ? file_update_time_flags+0x400/0x4a0
[  718.695939][ T6635]  f2fs_fallocate+0x54d/0x9b0
[  718.695967][ T6635]  vfs_fallocate+0x669/0x7e0
[  718.695986][ T6635]  ? __fget_files+0x2a/0x420
[  718.696015][ T6635]  ? __pfx_vfs_fallocate+0x10/0x10
[  718.696033][ T6635]  ? __fget_files+0x2a/0x420
[  718.696068][ T6635]  __x64_sys_fallocate+0xc0/0x110
[  718.696093][ T6635]  do_syscall_64+0x14d/0xf80
[  718.696115][ T6635]  ? trace_irq_disable+0x3b/0x150
[  718.696130][ T6635]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  718.696149][ T6635]  ? clear_bhb_loop+0x40/0x90
[  718.696172][ T6635]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  718.696190][ T6635] RIP: 0033:0x7fef83d9c629
[  718.696208][ T6635] Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
[  718.696222][ T6635] RSP: 002b:00007fef84cd8028 EFLAGS: 00000246 ORIG_RAX: 000000000000011d
[  718.696241][ T6635] RAX: ffffffffffffffda RBX: 00007fef84015fa0 RCX: 00007fef83d9c629
[  718.696254][ T6635] RDX: 0000000000004000 RSI: 0000000000000008 RDI: 0000000000000006
[  718.696265][ T6635] RBP: 00007fef83e32b39 R08: 0000000000000000 R09: 0000000000000000
[  718.696277][ T6635] R10: 0000000000008000 R11: 0000000000000246 R12: 0000000000000000
[  718.696288][ T6635] R13: 00007fef84016038 R14: 00007fef84015fa0 R15: 00007ffea5ce5878
[  718.696319][ T6635]  </TASK>
[  718.696327][ T6635] F2FS-fs (loop9): Stopped filesystem due to reason: 3
[  718.698471][   T30]  #1: 
[  718.710295][ T6635] CPU: 0 UID: 0 PID: 6635 Comm: syz.9.27 Not tainted syzkaller #0 PREEMPT(full) 
[  718.710319][ T6635] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
[  718.710330][ T6635] Call Trace:
[  718.710338][ T6635]  <TASK>
[  718.710345][ T6635]  dump_stack_lvl+0xe8/0x150
[  718.710375][ T6635]  f2fs_handle_critical_error+0x37c/0x540
[  718.710407][ T6635]  f2fs_write_end_io+0xcdb/0xff0
[  718.710445][ T6635]  __submit_merged_bio+0x256/0x700
[  718.710477][ T6635]  f2fs_submit_page_write+0xec4/0x23e0
[  718.710533][ T6635]  ? __pfx_f2fs_submit_page_write+0x10/0x10
[  718.710571][ T6635]  ? __f2fs_is_valid_blkaddr+0xd2a/0x14f0
[  718.710606][ T6635]  do_write_page+0x40f/0xac0
[  718.710635][ T6635]  f2fs_outplace_write_data+0x11a/0x220
[  718.710660][ T6635]  f2fs_do_write_data_page+0x123b/0x16f0
[  718.710699][ T6635]  ? __pfx_f2fs_do_write_data_page+0x10/0x10
[  718.710733][ T6635]  ? __lock_acquire+0x6b5/0x2cf0
[  718.710765][ T6635]  ? release_pages+0x56c/0x5a0
[  718.710795][ T6635]  f2fs_write_single_data_page+0x906/0x18b0
[  718.710839][ T6635]  ? __pfx_f2fs_write_single_data_page+0x10/0x10
[  718.710886][ T6635]  ? folio_clear_dirty_for_io+0x1d4/0x710
[  718.710915][ T6635]  ? folio_clear_dirty_for_io+0x573/0x710
[  718.710940][ T6635]  ? folio_clear_dirty_for_io+0x1d4/0x710
[  718.710966][ T6635]  f2fs_write_data_pages+0x1a5b/0x35e0
[  718.710986][ T6635]  ? __lock_acquire+0x6b5/0x2cf0
[  718.711045][ T6635]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  718.711078][ T6635]  ? kernel_text_address+0xa5/0xe0
[  718.711131][ T6635]  ? __lock_acquire+0x6b5/0x2cf0
[  718.711178][ T6635]  ? __lock_acquire+0x6b5/0x2cf0
[  718.711222][ T6635]  ? __free_frozen_pages+0x706/0xdb0
[  718.711242][ T6635]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  718.711261][ T6635]  do_writepages+0x32e/0x550
[  718.711296][ T6635]  ? do_raw_spin_unlock+0xf5/0x210
[  718.711320][ T6635]  filemap_write_and_wait_range+0x335/0x3f0
[  718.711351][ T6635]  ? __pfx_filemap_write_and_wait_range+0x10/0x10
[  718.711418][ T6635]  ? down_write+0x16d/0x200
[  718.711443][ T6635]  ? __pfx_down_write+0x10/0x10
[  718.711480][ T6635]  f2fs_collapse_range+0x48f/0x530
[  718.711500][ T6635]  ? inode_dio_wait+0x7f/0x270
[  718.711529][ T6635]  ? __pfx_f2fs_collapse_range+0x10/0x10
[  718.711561][ T6635]  ? mnt_put_write_access_file+0xc0/0x100
[  718.711583][ T6635]  ? file_update_time_flags+0x400/0x4a0
[  718.711607][ T6635]  f2fs_fallocate+0x54d/0x9b0
[  718.711634][ T6635]  vfs_fallocate+0x669/0x7e0
[  718.711652][ T6635]  ? __fget_files+0x2a/0x420
[  718.711682][ T6635]  ? __pfx_vfs_fallocate+0x10/0x10
[  718.711700][ T6635]  ? __fget_files+0x2a/0x420
[  718.711735][ T6635]  __x64_sys_fallocate+0xc0/0x110
[  718.711759][ T6635]  do_syscall_64+0x14d/0xf80
[  718.711781][ T6635]  ? trace_irq_disable+0x3b/0x150
[  718.711796][ T6635]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  718.711815][ T6635]  ? clear_bhb_loop+0x40/0x90
[  718.711838][ T6635]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  718.711855][ T6635] RIP: 0033:0x7fef83d9c629
[  718.711873][ T6635] Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
[  718.711888][ T6635] RSP: 002b:00007fef84cd8028 EFLAGS: 00000246 ORIG_RAX: 000000000000011d
[  718.711907][ T6635] RAX: ffffffffffffffda RBX: 00007fef84015fa0 RCX: 00007fef83d9c629
[  718.711921][ T6635] RDX: 0000000000004000 RSI: 0000000000000008 RDI: 0000000000000006
[  718.711932][ T6635] RBP: 00007fef83e32b39 R08: 0000000000000000 R09: 0000000000000000
[  718.711943][ T6635] R10: 0000000000008000 R11: 0000000000000246 R12: 0000000000000000
[  718.711954][ T6635] R13: 00007fef84016038 R14: 00007fef84015fa0 R15: 00007ffea5ce5878
[  718.711986][ T6635]  </TASK>
[  718.711994][ T6635] F2FS-fs (loop9): Stopped filesystem due to reason: 3
[  718.718238][   T30] ffffffff8fbd0408
[  718.729650][ T6635] CPU: 0 UID: 0 PID: 6635 Comm: syz.9.27 Not tainted syzkaller #0 PREEMPT(full) 
[  718.729675][ T6635] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
[  718.729686][ T6635] Call Trace:
[  718.729694][ T6635]  <TASK>
[  718.729702][ T6635]  dump_stack_lvl+0xe8/0x150
[  718.729732][ T6635]  f2fs_handle_critical_error+0x37c/0x540
[  718.729764][ T6635]  f2fs_write_end_io+0xcdb/0xff0
[  718.729803][ T6635]  __submit_merged_bio+0x256/0x700
[  718.729834][ T6635]  f2fs_submit_page_write+0xec4/0x23e0
[  718.729890][ T6635]  ? __pfx_f2fs_submit_page_write+0x10/0x10
[  718.729921][ T6635]  ? __f2fs_is_valid_blkaddr+0xd2a/0x14f0
[  718.729955][ T6635]  do_write_page+0x40f/0xac0
[  718.729984][ T6635]  f2fs_outplace_write_data+0x11a/0x220
[  718.730010][ T6635]  f2fs_do_write_data_page+0x123b/0x16f0
[  718.730049][ T6635]  ? __pfx_f2fs_do_write_data_page+0x10/0x10
[  718.730081][ T6635]  ? __lock_acquire+0x6b5/0x2cf0
[  718.730114][ T6635]  ? release_pages+0x56c/0x5a0
[  718.730144][ T6635]  f2fs_write_single_data_page+0x906/0x18b0
[  718.730187][ T6635]  ? __pfx_f2fs_write_single_data_page+0x10/0x10
[  718.730235][ T6635]  ? folio_clear_dirty_for_io+0x1d4/0x710
[  718.730264][ T6635]  ? folio_clear_dirty_for_io+0x573/0x710
[  718.730289][ T6635]  ? folio_clear_dirty_for_io+0x1d4/0x710
[  718.730316][ T6635]  f2fs_write_data_pages+0x1a5b/0x35e0
[  718.730335][ T6635]  ? __lock_acquire+0x6b5/0x2cf0
[  718.730395][ T6635]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  718.730428][ T6635]  ? kernel_text_address+0xa5/0xe0
[  718.730480][ T6635]  ? __lock_acquire+0x6b5/0x2cf0
[  718.730528][ T6635]  ? __lock_acquire+0x6b5/0x2cf0
[  718.730578][ T6635]  ? __free_frozen_pages+0x706/0xdb0
[  718.730599][ T6635]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  718.730618][ T6635]  do_writepages+0x32e/0x550
[  718.730653][ T6635]  ? do_raw_spin_unlock+0xf5/0x210
[  718.730678][ T6635]  filemap_write_and_wait_range+0x335/0x3f0
[  718.730709][ T6635]  ? __pfx_filemap_write_and_wait_range+0x10/0x10
[  718.730775][ T6635]  ? down_write+0x16d/0x200
[  718.730800][ T6635]  ? __pfx_down_write+0x10/0x10
[  718.730837][ T6635]  f2fs_collapse_range+0x48f/0x530
[  718.730856][ T6635]  ? inode_dio_wait+0x7f/0x270
[  718.730886][ T6635]  ? __pfx_f2fs_collapse_range+0x10/0x10
[  718.730913][ T6635]  ? mnt_put_write_access_file+0xc0/0x100
[  718.730936][ T6635]  ? file_update_time_flags+0x400/0x4a0
[  718.730959][ T6635]  f2fs_fallocate+0x54d/0x9b0
[  718.730986][ T6635]  vfs_fallocate+0x669/0x7e0
[  718.731005][ T6635]  ? __fget_files+0x2a/0x420
[  718.731035][ T6635]  ? __pfx_vfs_fallocate+0x10/0x10
[  718.731053][ T6635]  ? __fget_files+0x2a/0x420
[  718.731087][ T6635]  __x64_sys_fallocate+0xc0/0x110
[  718.731112][ T6635]  do_syscall_64+0x14d/0xf80
[  718.731135][ T6635]  ? trace_irq_disable+0x3b/0x150
[  718.731150][ T6635]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  718.731168][ T6635]  ? clear_bhb_loop+0x40/0x90
[  718.731192][ T6635]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  718.731209][ T6635] RIP: 0033:0x7fef83d9c629
[  718.731227][ T6635] Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
[  718.731242][ T6635] RSP: 002b:00007fef84cd8028 EFLAGS: 00000246 ORIG_RAX: 000000000000011d
[  718.731261][ T6635] RAX: ffffffffffffffda RBX: 00007fef84015fa0 RCX: 00007fef83d9c629
[  718.731274][ T6635] RDX: 0000000000004000 RSI: 0000000000000008 RDI: 0000000000000006
[  718.731285][ T6635] RBP: 00007fef83e32b39 R08: 0000000000000000 R09: 0000000000000000
[  718.731295][ T6635] R10: 0000000000008000 R11: 0000000000000246 R12: 0000000000000000
[  718.731306][ T6635] R13: 00007fef84016038 R14: 00007fef84015fa0 R15: 00007ffea5ce5878
[  718.731338][ T6635]  </TASK>
[  718.731345][ T6635] F2FS-fs (loop9): Stopped filesystem due to reason: 3
[  718.751018][   T30]  (
[  718.757662][ T6635] CPU: 0 UID: 0 PID: 6635 Comm: syz.9.27 Not tainted syzkaller #0 PREEMPT(full) 
[  718.757687][ T6635] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
[  718.757698][ T6635] Call Trace:
[  718.757706][ T6635]  <TASK>
[  718.757714][ T6635]  dump_stack_lvl+0xe8/0x150
[  718.757744][ T6635]  f2fs_handle_critical_error+0x37c/0x540
[  718.757777][ T6635]  f2fs_write_end_io+0xcdb/0xff0
[  718.757816][ T6635]  __submit_merged_bio+0x256/0x700
[  718.757847][ T6635]  f2fs_submit_page_write+0xec4/0x23e0
[  718.757903][ T6635]  ? __pfx_f2fs_submit_page_write+0x10/0x10
[  718.757934][ T6635]  ? __f2fs_is_valid_blkaddr+0xd2a/0x14f0
[  718.757968][ T6635]  do_write_page+0x40f/0xac0
[  718.757998][ T6635]  f2fs_outplace_write_data+0x11a/0x220
[  718.758024][ T6635]  f2fs_do_write_data_page+0x123b/0x16f0
[  718.758064][ T6635]  ? __pfx_f2fs_do_write_data_page+0x10/0x10
[  718.758096][ T6635]  ? __lock_acquire+0x6b5/0x2cf0
[  718.758129][ T6635]  ? release_pages+0x56c/0x5a0
[  718.758159][ T6635]  f2fs_write_single_data_page+0x906/0x18b0
[  718.758203][ T6635]  ? __pfx_f2fs_write_single_data_page+0x10/0x10
[  718.758250][ T6635]  ? folio_clear_dirty_for_io+0x1d4/0x710
[  718.758280][ T6635]  ? folio_clear_dirty_for_io+0x573/0x710
[  718.758304][ T6635]  ? folio_clear_dirty_for_io+0x1d4/0x710
[  718.758332][ T6635]  f2fs_write_data_pages+0x1a5b/0x35e0
[  718.758350][ T6635]  ? __lock_acquire+0x6b5/0x2cf0
[  718.758411][ T6635]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  718.758443][ T6635]  ? kernel_text_address+0xa5/0xe0
[  718.758496][ T6635]  ? __lock_acquire+0x6b5/0x2cf0
[  718.758551][ T6635]  ? __lock_acquire+0x6b5/0x2cf0
[  718.758595][ T6635]  ? __free_frozen_pages+0x706/0xdb0
[  718.758616][ T6635]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  718.758636][ T6635]  do_writepages+0x32e/0x550
[  718.758671][ T6635]  ? do_raw_spin_unlock+0xf5/0x210
[  718.758696][ T6635]  filemap_write_and_wait_range+0x335/0x3f0
[  718.758727][ T6635]  ? __pfx_filemap_write_and_wait_range+0x10/0x10
[  718.758794][ T6635]  ? down_write+0x16d/0x200
[  718.758820][ T6635]  ? __pfx_down_write+0x10/0x10
[  718.758857][ T6635]  f2fs_collapse_range+0x48f/0x530
[  718.758877][ T6635]  ? inode_dio_wait+0x7f/0x270
[  718.758906][ T6635]  ? __pfx_f2fs_collapse_range+0x10/0x10
[  718.758934][ T6635]  ? mnt_put_write_access_file+0xc0/0x100
[  718.758956][ T6635]  ? file_update_time_flags+0x400/0x4a0
[  718.758980][ T6635]  f2fs_fallocate+0x54d/0x9b0
[  718.759008][ T6635]  vfs_fallocate+0x669/0x7e0
[  718.759026][ T6635]  ? __fget_files+0x2a/0x420
[  718.759056][ T6635]  ? __pfx_vfs_fallocate+0x10/0x10
[  718.759074][ T6635]  ? __fget_files+0x2a/0x420
[  718.759108][ T6635]  __x64_sys_fallocate+0xc0/0x110
[  718.759132][ T6635]  do_syscall_64+0x14d/0xf80
[  718.759154][ T6635]  ? trace_irq_disable+0x3b/0x150
[  718.759171][ T6635]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  718.759189][ T6635]  ? clear_bhb_loop+0x40/0x90
[  718.759211][ T6635]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  718.759229][ T6635] RIP: 0033:0x7fef83d9c629
[  718.759248][ T6635] Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
[  718.759262][ T6635] RSP: 002b:00007fef84cd8028 EFLAGS: 00000246 ORIG_RAX: 000000000000011d
[  718.759281][ T6635] RAX: ffffffffffffffda RBX: 00007fef84015fa0 RCX: 00007fef83d9c629
[  718.759294][ T6635] RDX: 0000000000004000 RSI: 0000000000000008 RDI: 0000000000000006
[  718.759305][ T6635] RBP: 00007fef83e32b39 R08: 0000000000000000 R09: 0000000000000000
[  718.759316][ T6635] R10: 0000000000008000 R11: 0000000000000246 R12: 0000000000000000
[  718.759327][ T6635] R13: 00007fef84016038 R14: 00007fef84015fa0 R15: 00007ffea5ce5878
[  718.759359][ T6635]  </TASK>
[  718.759367][ T6635] F2FS-fs (loop9): Stopped filesystem due to reason: 3
[  718.808384][   T30] rtnl_mutex
[  718.809112][ T6635] CPU: 0 UID: 0 PID: 6635 Comm: syz.9.27 Not tainted syzkaller #0 PREEMPT(full) 
[  718.809136][ T6635] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
[  718.809148][ T6635] Call Trace:
[  718.809156][ T6635]  <TASK>
[  718.809165][ T6635]  dump_stack_lvl+0xe8/0x150
[  718.809195][ T6635]  f2fs_handle_critical_error+0x37c/0x540
[  718.809229][ T6635]  f2fs_write_end_io+0xcdb/0xff0
[  718.809266][ T6635]  __submit_merged_bio+0x256/0x700
[  718.809297][ T6635]  f2fs_submit_page_write+0xec4/0x23e0
[  718.809351][ T6635]  ? __pfx_f2fs_submit_page_write+0x10/0x10
[  718.809381][ T6635]  ? __f2fs_is_valid_blkaddr+0xd2a/0x14f0
[  718.809415][ T6635]  do_write_page+0x40f/0xac0
[  718.809444][ T6635]  f2fs_outplace_write_data+0x11a/0x220
[  718.809468][ T6635]  f2fs_do_write_data_page+0x123b/0x16f0
[  718.809506][ T6635]  ? __pfx_f2fs_do_write_data_page+0x10/0x10
[  718.809545][ T6635]  ? __lock_acquire+0x6b5/0x2cf0
[  718.809577][ T6635]  ? release_pages+0x56c/0x5a0
[  718.809606][ T6635]  f2fs_write_single_data_page+0x906/0x18b0
[  718.809649][ T6635]  ? __pfx_f2fs_write_single_data_page+0x10/0x10
[  718.809693][ T6635]  ? folio_clear_dirty_for_io+0x1d4/0x710
[  718.809723][ T6635]  ? folio_clear_dirty_for_io+0x573/0x710
[  718.809747][ T6635]  ? folio_clear_dirty_for_io+0x1d4/0x710
[  718.809774][ T6635]  f2fs_write_data_pages+0x1a5b/0x35e0
[  718.809793][ T6635]  ? __lock_acquire+0x6b5/0x2cf0
[  718.809847][ T6635]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  718.809878][ T6635]  ? kernel_text_address+0xa5/0xe0
[  718.809925][ T6635]  ? __lock_acquire+0x6b5/0x2cf0
[  718.809969][ T6635]  ? __lock_acquire+0x6b5/0x2cf0
[  718.810010][ T6635]  ? __free_frozen_pages+0x706/0xdb0
[  718.810030][ T6635]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  718.810049][ T6635]  do_writepages+0x32e/0x550
[  718.810083][ T6635]  ? do_raw_spin_unlock+0xf5/0x210
[  718.810106][ T6635]  filemap_write_and_wait_range+0x335/0x3f0
[  718.810136][ T6635]  ? __pfx_filemap_write_and_wait_range+0x10/0x10
[  718.810197][ T6635]  ? down_write+0x16d/0x200
[  718.810223][ T6635]  ? __pfx_down_write+0x10/0x10
[  718.810258][ T6635]  f2fs_collapse_range+0x48f/0x530
[  718.810278][ T6635]  ? inode_dio_wait+0x7f/0x270
[  718.810305][ T6635]  ? __pfx_f2fs_collapse_range+0x10/0x10
[  718.810332][ T6635]  ? mnt_put_write_access_file+0xc0/0x100
[  718.810355][ T6635]  ? file_update_time_flags+0x400/0x4a0
[  718.810377][ T6635]  f2fs_fallocate+0x54d/0x9b0
[  718.810403][ T6635]  vfs_fallocate+0x669/0x7e0
[  718.810421][ T6635]  ? __fget_files+0x2a/0x420
[  718.810450][ T6635]  ? __pfx_vfs_fallocate+0x10/0x10
[  718.810468][ T6635]  ? __fget_files+0x2a/0x420
[  718.810500][ T6635]  __x64_sys_fallocate+0xc0/0x110
[  718.810524][ T6635]  do_syscall_64+0x14d/0xf80
[  718.810551][ T6635]  ? trace_irq_disable+0x3b/0x150
[  718.810567][ T6635]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  718.810584][ T6635]  ? clear_bhb_loop+0x40/0x90
[  718.810606][ T6635]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  718.810624][ T6635] RIP: 0033:0x7fef83d9c629
[  718.810642][ T6635] Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
[  718.810657][ T6635] RSP: 002b:00007fef84cd8028 EFLAGS: 00000246 ORIG_RAX: 000000000000011d
[  718.810677][ T6635] RAX: ffffffffffffffda RBX: 00007fef84015fa0 RCX: 00007fef83d9c629
[  718.810690][ T6635] RDX: 0000000000004000 RSI: 0000000000000008 RDI: 0000000000000006
[  718.810701][ T6635] RBP: 00007fef83e32b39 R08: 0000000000000000 R09: 0000000000000000
[  718.810713][ T6635] R10: 0000000000008000 R11: 0000000000000246 R12: 0000000000000000
[  718.810724][ T6635] R13: 00007fef84016038 R14: 00007fef84015fa0 R15: 00007ffea5ce5878
[  718.810754][ T6635]  </TASK>
[  718.810762][ T6635] F2FS-fs (loop9): Stopped filesystem due to reason: 3
[  718.828278][   T30] ){+.+.}-{4:4}, at: rtnl_newlink+0x8a1/0x1be0
[  718.836622][ T6635] CPU: 0 UID: 0 PID: 6635 Comm: syz.9.27 Not tainted syzkaller #0 PREEMPT(full) 
[  718.836644][ T6635] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
[  718.836655][ T6635] Call Trace:
[  718.836663][ T6635]  <TASK>
[  718.836671][ T6635]  dump_stack_lvl+0xe8/0x150
[  718.836701][ T6635]  f2fs_handle_critical_error+0x37c/0x540
[  718.836736][ T6635]  f2fs_write_end_io+0xcdb/0xff0
[  718.836775][ T6635]  __submit_merged_bio+0x256/0x700
[  718.836807][ T6635]  f2fs_submit_page_write+0xec4/0x23e0
[  718.836863][ T6635]  ? __pfx_f2fs_submit_page_write+0x10/0x10
[  718.836895][ T6635]  ? __f2fs_is_valid_blkaddr+0xd2a/0x14f0
[  718.836930][ T6635]  do_write_page+0x40f/0xac0
[  718.836960][ T6635]  f2fs_outplace_write_data+0x11a/0x220
[  718.836985][ T6635]  f2fs_do_write_data_page+0x123b/0x16f0
[  718.837026][ T6635]  ? __pfx_f2fs_do_write_data_page+0x10/0x10
[  718.837058][ T6635]  ? __lock_acquire+0x6b5/0x2cf0
[  718.837092][ T6635]  ? release_pages+0x56c/0x5a0
[  718.837123][ T6635]  f2fs_write_single_data_page+0x906/0x18b0
[  718.837167][ T6635]  ? __pfx_f2fs_write_single_data_page+0x10/0x10
[  718.837215][ T6635]  ? folio_clear_dirty_for_io+0x1d4/0x710
[  718.837265][ T6635]  ? folio_clear_dirty_for_io+0x573/0x710
[  718.837290][ T6635]  ? folio_clear_dirty_for_io+0x1d4/0x710
[  718.837318][ T6635]  f2fs_write_data_pages+0x1a5b/0x35e0
[  718.837337][ T6635]  ? __lock_acquire+0x6b5/0x2cf0
[  718.837398][ T6635]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  718.837431][ T6635]  ? kernel_text_address+0xa5/0xe0
[  718.837485][ T6635]  ? __lock_acquire+0x6b5/0x2cf0
[  718.837538][ T6635]  ? __lock_acquire+0x6b5/0x2cf0
[  718.837581][ T6635]  ? __free_frozen_pages+0x706/0xdb0
[  718.837602][ T6635]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  718.837622][ T6635]  do_writepages+0x32e/0x550
[  718.837657][ T6635]  ? do_raw_spin_unlock+0xf5/0x210
[  718.837681][ T6635]  filemap_write_and_wait_range+0x335/0x3f0
[  718.837713][ T6635]  ? __pfx_filemap_write_and_wait_range+0x10/0x10
[  718.837781][ T6635]  ? down_write+0x16d/0x200
[  718.837806][ T6635]  ? __pfx_down_write+0x10/0x10
[  718.837843][ T6635]  f2fs_collapse_range+0x48f/0x530
[  718.837863][ T6635]  ? inode_dio_wait+0x7f/0x270
[  718.837894][ T6635]  ? __pfx_f2fs_collapse_range+0x10/0x10
[  718.837922][ T6635]  ? mnt_put_write_access_file+0xc0/0x100
[  718.837943][ T6635]  ? file_update_time_flags+0x400/0x4a0
[  718.837967][ T6635]  f2fs_fallocate+0x54d/0x9b0
[  718.837995][ T6635]  vfs_fallocate+0x669/0x7e0
[  718.838015][ T6635]  ? __fget_files+0x2a/0x420
[  718.838044][ T6635]  ? __pfx_vfs_fallocate+0x10/0x10
[  718.838063][ T6635]  ? __fget_files+0x2a/0x420
[  718.838097][ T6635]  __x64_sys_fallocate+0xc0/0x110
[  718.838122][ T6635]  do_syscall_64+0x14d/0xf80
[  718.838143][ T6635]  ? trace_irq_disable+0x3b/0x150
[  718.838159][ T6635]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  718.838177][ T6635]  ? clear_bhb_loop+0x40/0x90
[  718.838200][ T6635]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  718.838218][ T6635] RIP: 0033:0x7fef83d9c629
[  718.838236][ T6635] Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
[  718.838250][ T6635] RSP: 002b:00007fef84cd8028 EFLAGS: 00000246 ORIG_RAX: 000000000000011d
[  718.838270][ T6635] RAX: ffffffffffffffda RBX: 00007fef84015fa0 RCX: 00007fef83d9c629
[  718.838284][ T6635] RDX: 0000000000004000 RSI: 0000000000000008 RDI: 0000000000000006
[  718.838295][ T6635] RBP: 00007fef83e32b39 R08: 0000000000000000 R09: 0000000000000000
[  718.838306][ T6635] R10: 0000000000008000 R11: 0000000000000246 R12: 0000000000000000
[  718.838317][ T6635] R13: 00007fef84016038 R14: 00007fef84015fa0 R15: 00007ffea5ce5878
[  718.838349][ T6635]  </TASK>
[  718.838357][ T6635] F2FS-fs (loop9): Stopped filesystem due to reason: 3
[  718.849571][   T30] 2 locks held by syz-executor/6872:
[  718.858014][ T6635] CPU: 0 UID: 0 PID: 6635 Comm: syz.9.27 Not tainted syzkaller #0 PREEMPT(full) 
[  718.858038][ T6635] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
[  718.858049][ T6635] Call Trace:
[  718.858057][ T6635]  <TASK>
[  718.858065][ T6635]  dump_stack_lvl+0xe8/0x150
[  718.858096][ T6635]  f2fs_handle_critical_error+0x37c/0x540
[  718.858129][ T6635]  f2fs_write_end_io+0xcdb/0xff0
[  718.858167][ T6635]  __submit_merged_bio+0x256/0x700
[  718.858199][ T6635]  f2fs_submit_page_write+0xec4/0x23e0
[  718.858256][ T6635]  ? __pfx_f2fs_submit_page_write+0x10/0x10
[  718.858286][ T6635]  ? __f2fs_is_valid_blkaddr+0xd2a/0x14f0
[  718.858320][ T6635]  do_write_page+0x40f/0xac0
[  718.858350][ T6635]  f2fs_outplace_write_data+0x11a/0x220
[  718.858375][ T6635]  f2fs_do_write_data_page+0x123b/0x16f0
[  718.858415][ T6635]  ? __pfx_f2fs_do_write_data_page+0x10/0x10
[  718.858448][ T6635]  ? __lock_acquire+0x6b5/0x2cf0
[  718.858480][ T6635]  ? release_pages+0x56c/0x5a0
[  718.858510][ T6635]  f2fs_write_single_data_page+0x906/0x18b0
[  718.858561][ T6635]  ? __pfx_f2fs_write_single_data_page+0x10/0x10
[  718.858609][ T6635]  ? folio_clear_dirty_for_io+0x1d4/0x710
[  718.858640][ T6635]  ? folio_clear_dirty_for_io+0x573/0x710
[  718.858665][ T6635]  ? folio_clear_dirty_for_io+0x1d4/0x710
[  718.858692][ T6635]  f2fs_write_data_pages+0x1a5b/0x35e0
[  718.858711][ T6635]  ? __lock_acquire+0x6b5/0x2cf0
[  718.858772][ T6635]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  718.858806][ T6635]  ? kernel_text_address+0xa5/0xe0
[  718.858858][ T6635]  ? __lock_acquire+0x6b5/0x2cf0
[  718.858906][ T6635]  ? __lock_acquire+0x6b5/0x2cf0
[  718.858950][ T6635]  ? __free_frozen_pages+0x706/0xdb0
[  718.858971][ T6635]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  718.858990][ T6635]  do_writepages+0x32e/0x550
[  718.859026][ T6635]  ? do_raw_spin_unlock+0xf5/0x210
[  718.859051][ T6635]  filemap_write_and_wait_range+0x335/0x3f0
[  718.859081][ T6635]  ? __pfx_filemap_write_and_wait_range+0x10/0x10
[  718.859148][ T6635]  ? down_write+0x16d/0x200
[  718.859173][ T6635]  ? __pfx_down_write+0x10/0x10
[  718.859210][ T6635]  f2fs_collapse_range+0x48f/0x530
[  718.859230][ T6635]  ? inode_dio_wait+0x7f/0x270
[  718.859260][ T6635]  ? __pfx_f2fs_collapse_range+0x10/0x10
[  718.859288][ T6635]  ? mnt_put_write_access_file+0xc0/0x100
[  718.859310][ T6635]  ? file_update_time_flags+0x400/0x4a0
[  718.859334][ T6635]  f2fs_fallocate+0x54d/0x9b0
[  718.859361][ T6635]  vfs_fallocate+0x669/0x7e0
[  718.859380][ T6635]  ? __fget_files+0x2a/0x420
[  718.859410][ T6635]  ? __pfx_vfs_fallocate+0x10/0x10
[  718.859428][ T6635]  ? __fget_files+0x2a/0x420
[  718.859462][ T6635]  __x64_sys_fallocate+0xc0/0x110
[  718.859486][ T6635]  do_syscall_64+0x14d/0xf80
[  718.859508][ T6635]  ? trace_irq_disable+0x3b/0x150
[  718.859524][ T6635]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  718.859547][ T6635]  ? clear_bhb_loop+0x40/0x90
[  718.859570][ T6635]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  718.859588][ T6635] RIP: 0033:0x7fef83d9c629
[  718.859606][ T6635] Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
[  718.859621][ T6635] RSP: 002b:00007fef84cd8028 EFLAGS: 00000246 ORIG_RAX: 000000000000011d
[  718.859640][ T6635] RAX: ffffffffffffffda RBX: 00007fef84015fa0 RCX: 00007fef83d9c629
[  718.859653][ T6635] RDX: 0000000000004000 RSI: 0000000000000008 RDI: 0000000000000006
[  718.859665][ T6635] RBP: 00007fef83e32b39 R08: 0000000000000000 R09: 0000000000000000
[  718.859676][ T6635] R10: 0000000000008000 R11: 0000000000000246 R12: 0000000000000000
[  718.859687][ T6635] R13: 00007fef84016038 R14: 00007fef84015fa0 R15: 00007ffea5ce5878
[  718.859720][ T6635]  </TASK>
[  718.859727][ T6635] F2FS-fs (loop9): Stopped filesystem due to reason: 3
[  718.869913][   T30]  #0: 
[  718.875983][ T6635] syz.9.27: attempt to access beyond end of device
[  718.875983][ T6635] loop9: rw=2049, sector=49152, nr_sectors = 8 limit=40427
[  718.884054][   T30] ffffffff8fbc1630
[  718.891885][ T6635] CPU: 0 UID: 0 PID: 6635 Comm: syz.9.27 Not tainted syzkaller #0 PREEMPT(full) 
[  718.891909][ T6635] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
[  718.891920][ T6635] Call Trace:
[  718.891928][ T6635]  <TASK>
[  718.891936][ T6635]  dump_stack_lvl+0xe8/0x150
[  718.891966][ T6635]  f2fs_handle_critical_error+0x37c/0x540
[  718.891999][ T6635]  f2fs_write_end_io+0xcdb/0xff0
[  718.892037][ T6635]  __submit_merged_bio+0x256/0x700
[  718.892068][ T6635]  f2fs_submit_merged_write+0x284/0x390
[  718.892098][ T6635]  ? __pfx_f2fs_submit_merged_write+0x10/0x10
[  718.892120][ T6635]  ? do_raw_spin_lock+0x12b/0x2f0
[  718.892151][ T6635]  ? folio_unlock+0x101/0x160
[  718.892172][ T6635]  f2fs_write_single_data_page+0x134e/0x18b0
[  718.892216][ T6635]  ? __pfx_f2fs_write_single_data_page+0x10/0x10
[  718.892261][ T6635]  ? folio_clear_dirty_for_io+0x1d4/0x710
[  718.892290][ T6635]  ? folio_clear_dirty_for_io+0x573/0x710
[  718.892315][ T6635]  ? folio_clear_dirty_for_io+0x1d4/0x710
[  718.892342][ T6635]  f2fs_write_data_pages+0x1a5b/0x35e0
[  718.892360][ T6635]  ? __lock_acquire+0x6b5/0x2cf0
[  718.892420][ T6635]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  718.892452][ T6635]  ? kernel_text_address+0xa5/0xe0
[  718.892504][ T6635]  ? __lock_acquire+0x6b5/0x2cf0
[  718.892557][ T6635]  ? __lock_acquire+0x6b5/0x2cf0
[  718.892600][ T6635]  ? __free_frozen_pages+0x706/0xdb0
[  718.892621][ T6635]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  718.892641][ T6635]  do_writepages+0x32e/0x550
[  718.892675][ T6635]  ? do_raw_spin_unlock+0xf5/0x210
[  718.892699][ T6635]  filemap_write_and_wait_range+0x335/0x3f0
[  718.892730][ T6635]  ? __pfx_filemap_write_and_wait_range+0x10/0x10
[  718.892795][ T6635]  ? down_write+0x16d/0x200
[  718.892821][ T6635]  ? __pfx_down_write+0x10/0x10
[  718.892856][ T6635]  f2fs_collapse_range+0x48f/0x530
[  718.892877][ T6635]  ? inode_dio_wait+0x7f/0x270
[  718.892906][ T6635]  ? __pfx_f2fs_collapse_range+0x10/0x10
[  718.892933][ T6635]  ? mnt_put_write_access_file+0xc0/0x100
[  718.892955][ T6635]  ? file_update_time_flags+0x400/0x4a0
[  718.892978][ T6635]  f2fs_fallocate+0x54d/0x9b0
[  718.893005][ T6635]  vfs_fallocate+0x669/0x7e0
[  718.893024][ T6635]  ? __fget_files+0x2a/0x420
[  718.893054][ T6635]  ? __pfx_vfs_fallocate+0x10/0x10
[  718.893072][ T6635]  ? __fget_files+0x2a/0x420
[  718.893106][ T6635]  __x64_sys_fallocate+0xc0/0x110
[  718.893130][ T6635]  do_syscall_64+0x14d/0xf80
[  718.893152][ T6635]  ? trace_irq_disable+0x3b/0x150
[  718.893167][ T6635]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  718.893185][ T6635]  ? clear_bhb_loop+0x40/0x90
[  718.893208][ T6635]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  718.893225][ T6635] RIP: 0033:0x7fef83d9c629
[  718.893244][ T6635] Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
[  718.893259][ T6635] RSP: 002b:00007fef84cd8028 EFLAGS: 00000246 ORIG_RAX: 000000000000011d
[  718.893278][ T6635] RAX: ffffffffffffffda RBX: 00007fef84015fa0 RCX: 00007fef83d9c629
[  718.893291][ T6635] RDX: 0000000000004000 RSI: 0000000000000008 RDI: 0000000000000006
[  718.893303][ T6635] RBP: 00007fef83e32b39 R08: 0000000000000000 R09: 0000000000000000
[  718.893314][ T6635] R10: 0000000000008000 R11: 0000000000000246 R12: 0000000000000000
[  718.893325][ T6635] R13: 00007fef84016038 R14: 00007fef84015fa0 R15: 00007ffea5ce5878
[  718.893358][ T6635]  </TASK>
[  718.893366][ T6635] F2FS-fs (loop9): Stopped filesystem due to reason: 3
[  718.904450][   T30]  (
[  719.014556][   T50] Bluetooth: hci8: command tx timeout
[  719.084532][ T6016] Bluetooth: hci5: command tx timeout
[  719.144711][   T30] pernet_ops_rwsem
[  721.150902][ T6016] Bluetooth: hci8: command tx timeout
[  721.176515][   T30] ){++++}-{4:4}
[  721.236989][ T6016] Bluetooth: hci5: command tx timeout
[  723.314767][ T6016] Bluetooth: hci5: command tx timeout
[  723.334567][   T30] , at: copy_net_ns+0x4f7/0x730
[  747.265304][ T1305] ieee802154 phy0 wpan0: encryption failed: -22
[  747.274948][   T30]  #1: 
[  747.278896][ T1305] ieee802154 phy1 wpan1: encryption failed: -22
[  747.282167][   T30] ffffffff8fbd0408 (rtnl_mutex){+.+.}-{4:4}, at: register_netdev+0x18/0x60
[  747.331375][   T30] 
[  747.343035][   T30] =============================================
[  747.343035][   T30] 
[  747.385651][   T30] NMI backtrace for cpu 0
[  747.385674][   T30] CPU: 0 UID: 0 PID: 30 Comm: khungtaskd Not tainted syzkaller #0 PREEMPT(full) 
[  747.385694][   T30] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
[  747.385705][   T30] Call Trace:
[  747.385713][   T30]  <TASK>
[  747.385721][   T30]  dump_stack_lvl+0xe8/0x150
[  747.385750][   T30]  nmi_cpu_backtrace+0x274/0x2d0
[  747.385770][   T30]  ? __pfx_nmi_raise_cpu_backtrace+0x10/0x10
[  747.385796][   T30]  nmi_trigger_cpumask_backtrace+0x17a/0x300
[  747.385818][   T30]  sys_info+0x135/0x170
[  747.385834][   T30]  watchdog+0xfd9/0x1030
[  747.385856][   T30]  ? watchdog+0x21a/0x1030
[  747.385879][   T30]  kthread+0x388/0x470
[  747.385898][   T30]  ? __pfx_watchdog+0x10/0x10
[  747.385913][   T30]  ? __pfx_kthread+0x10/0x10
[  747.385933][   T30]  ret_from_fork+0x51e/0xb90
[  747.385966][   T30]  ? __pfx_ret_from_fork+0x10/0x10
[  747.385987][   T30]  ? __switch_to+0xc7d/0x1450
[  747.386012][   T30]  ? __pfx_kthread+0x10/0x10
[  747.386031][   T30]  ret_from_fork_asm+0x1a/0x30
[  747.386061][   T30]  </TASK>
[  747.386068][   T30] Sending NMI from CPU 0 to CPUs 1:
[  747.496766][    C1] NMI backtrace for cpu 1
[  747.496785][    C1] CPU: 1 UID: 0 PID: 6664 Comm: syz.9.27 Not tainted syzkaller #0 PREEMPT(full) 
[  747.496802][    C1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
[  747.496812][    C1] RIP: 0010:unwind_next_frame+0x4ef/0x23c0
[  747.496840][    C1] Code: 4c 8b 6c 24 48 0f 84 72 15 00 00 e9 03 02 00 00 49 89 d5 48 89 d5 48 89 d8 48 29 e8 48 89 c1 48 c1 f9 02 48 c1 e8 3f 48 01 c8 <48> 83 e0 fe 4c 8d 3c 45 00 00 00 00 49 01 ef 4c 89 f8 48 c1 e8 03
[  747.496853][    C1] RSP: 0018:ffffc90004b7ee38 EFLAGS: 00000246
[  747.496868][    C1] RAX: 0000000000000000 RBX: ffffffff9033608c RCX: 0000000000000000
[  747.496879][    C1] RDX: ffffffff90336050 RSI: ffffffff90b42bba RDI: ffffffff8c27f620
[  747.496891][    C1] RBP: ffffffff9033608c R08: 0000000000000010 R09: ffffffff8e7602e0
[  747.496901][    C1] R10: ffffc90004b7ef58 R11: ffffffff81b0c670 R12: ffffffff822fcad5
[  747.496912][    C1] R13: ffffffff90336088 R14: ffffc90004b7ef08 R15: ffffffff90336088
[  747.496924][    C1] FS:  0000000000000000(0000) GS:ffff888125555000(0000) knlGS:0000000000000000
[  747.496937][    C1] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  747.496947][    C1] CR2: 00007fef84cb79a0 CR3: 0000000033b96000 CR4: 00000000003526f0
[  747.496961][    C1] Call Trace:
[  747.496968][    C1]  <TASK>
[  747.496978][    C1]  ? unwind_next_frame+0xa5/0x23c0
[  747.497000][    C1]  ? kasan_save_free_info+0x46/0x50
[  747.497020][    C1]  ? kasan_save_free_info+0x46/0x50
[  747.497040][    C1]  ? __pfx_stack_trace_consume_entry+0x10/0x10
[  747.497057][    C1]  arch_stack_walk+0x11b/0x150
[  747.497073][    C1]  ? kasan_save_free_info+0x46/0x50
[  747.497094][    C1]  stack_trace_save+0xa9/0x100
[  747.497110][    C1]  ? __pfx_stack_trace_save+0x10/0x10
[  747.497124][    C1]  ? kill_f2fs_super+0x402/0x720
[  747.497140][    C1]  ? stack_depot_save_flags+0x33/0x810
[  747.497162][    C1]  ? do_syscall_64+0x32d/0xf80
[  747.497181][    C1]  ? entry_SYSCALL_64_after_hwframe+0x47/0x7f
[  747.497197][    C1]  kasan_save_track+0x3e/0x80
[  747.497217][    C1]  ? kasan_save_track+0x3e/0x80
[  747.497231][    C1]  ? kasan_save_free_info+0x46/0x50
[  747.497270][    C1]  kasan_save_free_info+0x46/0x50
[  747.497289][    C1]  __kasan_slab_free+0x5c/0x80
[  747.497305][    C1]  kmem_cache_free+0x187/0x630
[  747.497321][    C1]  ? f2fs_destroy_node_manager+0x36b/0xd50
[  747.497338][    C1]  ? do_raw_spin_unlock+0xf5/0x210
[  747.497357][    C1]  f2fs_destroy_node_manager+0x36b/0xd50
[  747.497381][    C1]  ? __pfx_f2fs_destroy_node_manager+0x10/0x10
[  747.497411][    C1]  ? kfree+0x1c1/0x630
[  747.497424][    C1]  ? f2fs_put_super+0xc11/0x12a0
[  747.497442][    C1]  f2fs_put_super+0xc19/0x12a0
[  747.497459][    C1]  ? __pfx_f2fs_free_inode+0x10/0x10
[  747.497476][    C1]  ? __pfx_f2fs_put_super+0x10/0x10
[  747.497499][    C1]  ? hook_sb_delete+0xbdd/0xd40
[  747.497520][    C1]  ? hook_sb_delete+0x21f/0xd40
[  747.497539][    C1]  ? __pfx_hook_sb_delete+0x10/0x10
[  747.497559][    C1]  ? __pfx_evict_inodes+0x10/0x10
[  747.497582][    C1]  ? f2fs_sync_fs+0x22f/0x400
[  747.497602][    C1]  ? __pfx_f2fs_put_super+0x10/0x10
[  747.497618][    C1]  generic_shutdown_super+0x13d/0x2d0
[  747.497641][    C1]  kill_block_super+0x44/0x90
[  747.497656][    C1]  kill_f2fs_super+0x402/0x720
[  747.497673][    C1]  ? __pfx_kill_f2fs_super+0x10/0x10
[  747.497692][    C1]  ? lockdep_hardirqs_on+0x7a/0x110
[  747.497716][    C1]  deactivate_locked_super+0xbc/0x130
[  747.497737][    C1]  cleanup_mnt+0x437/0x4d0
[  747.497754][    C1]  task_work_run+0x1d9/0x270
[  747.497771][    C1]  ? __pfx_task_work_run+0x10/0x10
[  747.497787][    C1]  ? kmem_cache_free+0x187/0x630
[  747.497803][    C1]  ? do_exit+0x696/0x2320
[  747.497820][    C1]  do_exit+0x69b/0x2320
[  747.497837][    C1]  ? __pfx_do_exit+0x10/0x10
[  747.497853][    C1]  ? do_raw_spin_lock+0x12b/0x2f0
[  747.497872][    C1]  do_group_exit+0x21b/0x2d0
[  747.497887][    C1]  ? _raw_spin_unlock_irq+0x23/0x50
[  747.497907][    C1]  get_signal+0x1284/0x1330
[  747.497933][    C1]  arch_do_signal_or_restart+0xbc/0x830
[  747.497951][    C1]  ? __pfx_task_work_add+0x10/0x10
[  747.497967][    C1]  ? __pfx_arch_do_signal_or_restart+0x10/0x10
[  747.497987][    C1]  ? __fput_deferred+0x216/0x380
[  747.498009][    C1]  exit_to_user_mode_loop+0x86/0x480
[  747.498026][    C1]  ? rcu_is_watching+0x15/0xb0
[  747.498047][    C1]  do_syscall_64+0x32d/0xf80
[  747.498065][    C1]  ? trace_irq_disable+0x3b/0x150
[  747.498078][    C1]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  747.498093][    C1]  ? clear_bhb_loop+0x40/0x90
[  747.498110][    C1]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  747.498124][    C1] RIP: 0033:0x7fef83d9c629
[  747.498137][    C1] Code: Unable to access opcode bytes at 0x7fef83d9c5ff.
[  747.498145][    C1] RSP: 002b:00007fef84cb7028 EFLAGS: 00000246 ORIG_RAX: 000000000000011d
[  747.498160][    C1] RAX: 0000000000000000 RBX: 00007fef84016090 RCX: 00007fef83d9c629
[  747.498171][    C1] RDX: 0000000000004000 RSI: 0000000000000008 RDI: 0000000000000004
[  747.498180][    C1] RBP: 00007fef83e32b39 R08: 0000000000000000 R09: 0000000000000000
[  747.498190][    C1] R10: 0000000000010000 R11: 0000000000000246 R12: 0000000000000000
[  747.498199][    C1] R13: 00007fef84016128 R14: 00007fef84016090 R15: 00007ffea5ce5878
[  747.498222][    C1]  </TASK>
[  748.001541][   T30] Kernel panic - not syncing: hung_task: blocked tasks
[  748.008402][   T30] CPU: 0 UID: 0 PID: 30 Comm: khungtaskd Not tainted syzkaller #0 PREEMPT(full) 
[  748.017493][   T30] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
[  748.027615][   T30] Call Trace:
[  748.030875][   T30]  <TASK>
[  748.033787][   T30]  vpanic+0x56c/0xa60
[  748.037775][   T30]  ? __pfx___schedule+0x10/0x10
[  748.042606][   T30]  ? __pfx_vpanic+0x10/0x10
[  748.047090][   T30]  ? __pfx_console_unlock+0x10/0x10
[  748.052273][   T30]  panic+0xc5/0xd0
[  748.055987][   T30]  ? __pfx_panic+0x10/0x10
[  748.060410][   T30]  ? preempt_schedule_thunk+0x16/0x30
[  748.065767][   T30]  ? nmi_trigger_cpumask_backtrace+0x2bb/0x300
[  748.071901][   T30]  watchdog+0x1023/0x1030
[  748.076224][   T30]  ? watchdog+0x21a/0x1030
[  748.080623][   T30]  kthread+0x388/0x470
[  748.084701][   T30]  ? __pfx_watchdog+0x10/0x10
[  748.089378][   T30]  ? __pfx_kthread+0x10/0x10
[  748.093986][   T30]  ret_from_fork+0x51e/0xb90
[  748.098570][   T30]  ? __pfx_ret_from_fork+0x10/0x10
[  748.103683][   T30]  ? __switch_to+0xc7d/0x1450
[  748.108365][   T30]  ? __pfx_kthread+0x10/0x10
[  748.113066][   T30]  ret_from_fork_asm+0x1a/0x30
[  748.117840][   T30]  </TASK>
[  748.121434][   T30] Kernel Offset: disabled
[  748.125774][   T30] Rebooting in 86400 seconds..