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kernel BUG at fs/notify/dnotify/dnotify.c:136!
invalid opcode: 0000 [#1] PREEMPT SMP KASAN
CPU: 0 PID: 6364 Comm: kworker/u4:17 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
Workqueue: events_unbound fsnotify_mark_destroy_workfn
RIP: 0010:dnotify_free_mark+0x57/0x60 fs/notify/dnotify/dnotify.c:136
Code: 4c 89 f7 e8 ab 44 de ff 49 83 3e 00 75 17 e8 50 1d 86 ff 48 8b 3d 81 15 8a 0c 48 89 de 5b 41 5e e9 ce 74 dd ff e8 39 1d 86 ff <0f> 0b cc cc cc cc cc cc cc f3 0f 1e fa 55 41 57 41 56 41 55 41 54
RSP: 0018:ffffc9000c687ae8 EFLAGS: 00010293
RAX: ffffffff8200f5e7 RBX: ffff88801e701190 RCX: ffff888027a9da00
RDX: 0000000000000000 RSI: 0000000000000036 RDI: ffff88801e701190
RBP: ffffc9000c687bb0 R08: ffff88802d67480b R09: 1ffff11005ace901
R10: dffffc0000000000 R11: ffffed1005ace902 R12: 1ffff11003ce0234
R13: dffffc0000000000 R14: ffff88801e701210 R15: ffffffff8ad88188
FS:  0000000000000000(0000) GS:ffff8880b8e00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f4743dd4000 CR3: 000000002566d000 CR4: 00000000003506f0
Call Trace:
 <TASK>
 fsnotify_final_mark_destroy fs/notify/mark.c:304 [inline]
 fsnotify_mark_destroy_workfn+0x25b/0x2f0 fs/notify/mark.c:928
 process_one_work kernel/workqueue.c:2634 [inline]
 process_scheduled_works+0xa5d/0x15d0 kernel/workqueue.c:2711
 worker_thread+0xa55/0xfc0 kernel/workqueue.c:2792
 kthread+0x2fa/0x390 kernel/kthread.c:388
 ret_from_fork+0x48/0x80 arch/x86/kernel/process.c:152
 ret_from_fork_asm+0x11/0x20 arch/x86/entry/entry_64.S:293
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:dnotify_free_mark+0x57/0x60 fs/notify/dnotify/dnotify.c:136
Code: 4c 89 f7 e8 ab 44 de ff 49 83 3e 00 75 17 e8 50 1d 86 ff 48 8b 3d 81 15 8a 0c 48 89 de 5b 41 5e e9 ce 74 dd ff e8 39 1d 86 ff <0f> 0b cc cc cc cc cc cc cc f3 0f 1e fa 55 41 57 41 56 41 55 41 54
RSP: 0018:ffffc9000c687ae8 EFLAGS: 00010293
RAX: ffffffff8200f5e7 RBX: ffff88801e701190 RCX: ffff888027a9da00
RDX: 0000000000000000 RSI: 0000000000000036 RDI: ffff88801e701190
RBP: ffffc9000c687bb0 R08: ffff88802d67480b R09: 1ffff11005ace901
R10: dffffc0000000000 R11: ffffed1005ace902 R12: 1ffff11003ce0234
R13: dffffc0000000000 R14: ffff88801e701210 R15: ffffffff8ad88188
FS:  0000000000000000(0000) GS:ffff8880b8e00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b2d41aff8 CR3: 0000000067818000 CR4: 00000000003506f0