INFO: trying to register non-static key.
The code is fine but needs lockdep annotation, or maybe
you didn't initialize this object before use?
turning off the locking correctness validator.
CPU: 0 PID: 4833 Comm: gfs2_quotad Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/16/2026
Call Trace:
 <TASK>
 dump_stack_lvl+0x188/0x250 lib/dump_stack.c:106
 assign_lock_key+0x1ec/0x200 kernel/locking/lockdep.c:967
 register_lock_class+0x21d/0x880 kernel/locking/lockdep.c:1280
 __lock_acquire+0x265/0x7d40 kernel/locking/lockdep.c:4997
 lock_acquire+0x19f/0x400 kernel/locking/lockdep.c:5737
 __raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:110 [inline]
 _raw_spin_lock_irqsave+0xb0/0x100 kernel/locking/spinlock.c:162
 finish_wait+0xb8/0x1c0 kernel/sched/wait.c:407
 gfs2_quotad+0x713/0x890 fs/gfs2/quota.c:1605
 kthread+0x42e/0x520 kernel/kthread.c:334
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:287
 </TASK>
list_del corruption. prev->next should be ffffc9000353fe58, but was 0000000000000000
------------[ cut here ]------------
kernel BUG at lib/list_debug.c:61!
invalid opcode: 0000 [#1] PREEMPT SMP KASAN
CPU: 0 PID: 4833 Comm: gfs2_quotad Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/16/2026
RIP: 0010:__list_del_entry_valid+0x107/0x120 lib/list_debug.c:59
Code: 48 89 de e8 cb f3 c9 05 0f 0b 48 c7 c7 c0 4f 7a 8a 48 89 de e8 ba f3 c9 05 0f 0b 48 c7 c7 20 50 7a 8a 48 89 de e8 a9 f3 c9 05 <0f> 0b 48 c7 c7 80 50 7a 8a 48 89 de e8 98 f3 c9 05 0f 0b 00 00 cc
RSP: 0018:ffffc9000353fd10 EFLAGS: 00010046
RAX: 0000000000000054 RBX: ffffc9000353fe58 RCX: 826c5e68ed763f00
RDX: 0000000000000000 RSI: 0000000080000001 RDI: 0000000000000000
RBP: ffff88807bedcb98 R08: ffff8880b902795b R09: 1ffff11017204f2b
R10: dffffc0000000000 R11: ffffed1017204f2c R12: dffffc0000000000
R13: 0000000000000a02 R14: ffff88807bedcbd8 R15: ffff88807bedcbd8
FS:  0000000000000000(0000) GS:ffff8880b9000000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000200000000240 CR3: 000000002a7a1000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 __list_del_entry include/linux/list.h:139 [inline]
 list_del_init include/linux/list.h:211 [inline]
 finish_wait+0xc3/0x1c0 kernel/sched/wait.c:408
 gfs2_quotad+0x713/0x890 fs/gfs2/quota.c:1605
 kthread+0x42e/0x520 kernel/kthread.c:334
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:287
 </TASK>
Modules linked in:
---[ end trace 50689746af7ecdef ]---
RIP: 0010:__list_del_entry_valid+0x107/0x120 lib/list_debug.c:59
Code: 48 89 de e8 cb f3 c9 05 0f 0b 48 c7 c7 c0 4f 7a 8a 48 89 de e8 ba f3 c9 05 0f 0b 48 c7 c7 20 50 7a 8a 48 89 de e8 a9 f3 c9 05 <0f> 0b 48 c7 c7 80 50 7a 8a 48 89 de e8 98 f3 c9 05 0f 0b 00 00 cc
RSP: 0018:ffffc9000353fd10 EFLAGS: 00010046
RAX: 0000000000000054 RBX: ffffc9000353fe58 RCX: 826c5e68ed763f00
RDX: 0000000000000000 RSI: 0000000080000001 RDI: 0000000000000000
RBP: ffff88807bedcb98 R08: ffff8880b902795b R09: 1ffff11017204f2b
R10: dffffc0000000000 R11: ffffed1017204f2c R12: dffffc0000000000
R13: 0000000000000a02 R14: ffff88807bedcbd8 R15: ffff88807bedcbd8
FS:  0000000000000000(0000) GS:ffff8880b9000000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000200000000240 CR3: 000000002a7a1000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400