BTRFS info (device loop1): last unmount of filesystem 395ef67a-297e-477c-816d-cd80a5b93e5d
BUG: MAX_LOCKDEP_KEYS too low!
turning off the locking correctness validator.
CPU: 1 UID: 0 PID: 11173 Comm: syz-executor Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/18/2025
Call Trace:
 <TASK>
 dump_stack_lvl+0x189/0x250 lib/dump_stack.c:120
 register_lock_class+0x2e8/0x320 kernel/locking/lockdep.c:1332
 __lock_acquire+0x99/0xd20 kernel/locking/lockdep.c:5112
 lock_acquire+0x120/0x360 kernel/locking/lockdep.c:5868
 touch_wq_lockdep_map+0xcb/0x180 kernel/workqueue.c:3936
 __flush_workqueue+0x121/0x14b0 kernel/workqueue.c:3978
 close_ctree+0x39a/0x1380 fs/btrfs/disk-io.c:4301
 generic_shutdown_super+0x132/0x2c0 fs/super.c:642
 kill_anon_super+0x3b/0x70 fs/super.c:1281
 btrfs_kill_super+0x41/0x50 fs/btrfs/super.c:2129
 deactivate_locked_super+0xbc/0x130 fs/super.c:473
 cleanup_mnt+0x425/0x4c0 fs/namespace.c:1327
 task_work_run+0x1d4/0x260 kernel/task_work.c:227
 resume_user_mode_work include/linux/resume_user_mode.h:50 [inline]
 exit_to_user_mode_loop+0xe9/0x130 kernel/entry/common.c:43
 exit_to_user_mode_prepare include/linux/irq-entry-common.h:225 [inline]
 syscall_exit_to_user_mode_work include/linux/entry-common.h:175 [inline]
 syscall_exit_to_user_mode include/linux/entry-common.h:210 [inline]
 do_syscall_64+0x2bd/0xfa0 arch/x86/entry/syscall_64.c:100
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7ff063fe01f7
Code: a8 ff ff ff f7 d8 64 89 01 48 83 c8 ff c3 0f 1f 44 00 00 31 f6 e9 09 00 00 00 66 0f 1f 84 00 00 00 00 00 b8 a6 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 01 c3 48 c7 c2 a8 ff ff ff f7 d8 64 89 02 b8
RSP: 002b:00007ffef21bd868 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
RAX: 0000000000000000 RBX: 00007ff064061d7d RCX: 00007ff063fe01f7
RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffef21bd920
RBP: 00007ffef21bd920 R08: 0000000000000000 R09: 0000000000000000
R10: 00000000ffffffff R11: 0000000000000246 R12: 00007ffef21be9b0
R13: 00007ff064061d7d R14: 00000000001cfeee R15: 00007ffef21be9f0
 </TASK>
syz-executor: attempt to access beyond end of device
loop1: rw=2049, sector=45096, nr_sectors = 8 limit=40427
CPU: 1 UID: 0 PID: 11173 Comm: syz-executor Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/18/2025
Call Trace:
 <TASK>
 dump_stack_lvl+0x189/0x250 lib/dump_stack.c:120
 f2fs_handle_critical_error+0x354/0x510 fs/f2fs/super.c:4639
 f2fs_write_end_io+0x886/0xb60 fs/f2fs/data.c:351
 __submit_merged_bio+0x27a/0x6a0 fs/f2fs/data.c:540
 __f2fs_submit_merged_write fs/f2fs/data.c:635 [inline]
 __submit_merged_write_cond+0x255/0x530 fs/f2fs/data.c:657
 f2fs_submit_merged_write_cond fs/f2fs/data.c:674 [inline]
 f2fs_write_cache_pages fs/f2fs/data.c:3192 [inline]
 __f2fs_write_data_pages fs/f2fs/data.c:3273 [inline]
 f2fs_write_data_pages+0x261d/0x3000 fs/f2fs/data.c:3300
 do_writepages+0x32b/0x550 mm/page-writeback.c:2604
 filemap_fdatawrite_wbc mm/filemap.c:389 [inline]
 __filemap_fdatawrite_range mm/filemap.c:422 [inline]
 __filemap_fdatawrite mm/filemap.c:428 [inline]
 filemap_fdatawrite+0x19c/0x240 mm/filemap.c:433
 f2fs_sync_dirty_inodes+0x31f/0x830 fs/f2fs/checkpoint.c:1108
 block_operations fs/f2fs/checkpoint.c:1247 [inline]
 f2fs_write_checkpoint+0x93e/0x2440 fs/f2fs/checkpoint.c:1678
 kill_f2fs_super+0x2cc/0x6d0 fs/f2fs/super.c:5448
 deactivate_locked_super+0xbc/0x130 fs/super.c:473
 cleanup_mnt+0x425/0x4c0 fs/namespace.c:1327
 task_work_run+0x1d4/0x260 kernel/task_work.c:227
 resume_user_mode_work include/linux/resume_user_mode.h:50 [inline]
 exit_to_user_mode_loop+0xe9/0x130 kernel/entry/common.c:43
 exit_to_user_mode_prepare include/linux/irq-entry-common.h:225 [inline]
 syscall_exit_to_user_mode_work include/linux/entry-common.h:175 [inline]
 syscall_exit_to_user_mode include/linux/entry-common.h:210 [inline]
 do_syscall_64+0x2bd/0xfa0 arch/x86/entry/syscall_64.c:100
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7ff063fe01f7
Code: a8 ff ff ff f7 d8 64 89 01 48 83 c8 ff c3 0f 1f 44 00 00 31 f6 e9 09 00 00 00 66 0f 1f 84 00 00 00 00 00 b8 a6 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 01 c3 48 c7 c2 a8 ff ff ff f7 d8 64 89 02 b8
RSP: 002b:00007ffef21bd868 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
RAX: 0000000000000000 RBX: 00007ff064061d7d RCX: 00007ff063fe01f7
RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffef21bd920
RBP: 00007ffef21bd920 R08: 0000000000000000 R09: 0000000000000000
R10: 00000000ffffffff R11: 0000000000000246 R12: 00007ffef21be9b0
R13: 00007ff064061d7d R14: 00000000001d0c17 R15: 00007ffef21be9f0
 </TASK>
F2FS-fs (loop1): Stopped filesystem due to reason: 3