syzbot

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kernel BUG at fs/notify/dnotify/dnotify.c:118!
invalid opcode: 0000 [#1] PREEMPT SMP KASAN
CPU: 1 PID: 2614 Comm: kworker/u4:5 Not tainted 5.15.162-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/07/2024
Workqueue: events_unbound fsnotify_mark_destroy_workfn
RIP: 0010:dnotify_free_mark+0x53/0x60 fs/notify/dnotify/dnotify.c:118
Code: 48 89 df e8 cf b0 e1 ff 48 83 3b 00 75 17 e8 d4 e1 97 ff 48 8b 3d 6d 2a fc 0b 4c 89 f6 5b 41 5e e9 92 d9 e0 ff e8 bd e1 97 ff <0f> 0b cc cc cc cc cc cc cc cc cc cc cc 55 41 57 41 56 41 55 41 54
RSP: 0018:ffffc9000a27fb88 EFLAGS: 00010293
RAX: ffffffff81e879a3 RBX: ffff8880170ac080 RCX: ffff888022ca1dc0
RDX: 0000000000000000 RSI: ffffffff8a8b2a00 RDI: ffff8880170ac000
RBP: ffffc9000a27fc50 R08: dffffc0000000000 R09: fffffbfff1f7f230
R10: 0000000000000000 R11: dffffc0000000001 R12: ffff88801883d800
R13: ffffc9000a27fbe0 R14: ffff8880170ac000 R15: ffff8880170ac000
FS:  0000000000000000(0000) GS:ffff8880b9b00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f30e3a6b000 CR3: 00000000753a3000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 fsnotify_final_mark_destroy fs/notify/mark.c:278 [inline]
 fsnotify_mark_destroy_workfn+0x2c7/0x340 fs/notify/mark.c:902
 process_one_work+0x8a1/0x10c0 kernel/workqueue.c:2310
 worker_thread+0xaca/0x1280 kernel/workqueue.c:2457
 kthread+0x3f6/0x4f0 kernel/kthread.c:334
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:300
 </TASK>
Modules linked in:
---[ end trace 08e18347070d5dcc ]---
RIP: 0010:dnotify_free_mark+0x53/0x60 fs/notify/dnotify/dnotify.c:118
Code: 48 89 df e8 cf b0 e1 ff 48 83 3b 00 75 17 e8 d4 e1 97 ff 48 8b 3d 6d 2a fc 0b 4c 89 f6 5b 41 5e e9 92 d9 e0 ff e8 bd e1 97 ff <0f> 0b cc cc cc cc cc cc cc cc cc cc cc 55 41 57 41 56 41 55 41 54
RSP: 0018:ffffc9000a27fb88 EFLAGS: 00010293
RAX: ffffffff81e879a3 RBX: ffff8880170ac080 RCX: ffff888022ca1dc0
RDX: 0000000000000000 RSI: ffffffff8a8b2a00 RDI: ffff8880170ac000
RBP: ffffc9000a27fc50 R08: dffffc0000000000 R09: fffffbfff1f7f230
R10: 0000000000000000 R11: dffffc0000000001 R12: ffff88801883d800
R13: ffffc9000a27fbe0 R14: ffff8880170ac000 R15: ffff8880170ac000
FS:  0000000000000000(0000) GS:ffff8880b9a00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000563dd8be7278 CR3: 000000002288d000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400