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: 6697 Comm: gfs2_quotad Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026
Call Trace:
 <TASK>
 dump_stack_lvl+0x188/0x250 lib/dump_stack.c:106
 assign_lock_key+0x1ec/0x200 kernel/locking/lockdep.c:937
 register_lock_class+0x21d/0x890 kernel/locking/lockdep.c:1250
 __lock_acquire+0x16f/0x7d10 kernel/locking/lockdep.c:4891
 lock_acquire+0x19e/0x400 kernel/locking/lockdep.c:5623
 __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+0xb5/0x1d0 kernel/sched/wait.c:407
 gfs2_quotad+0x710/0x890 fs/gfs2/quota.c:1605
 kthread+0x436/0x520 kernel/kthread.c:334
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:287
 </TASK>
list_del corruption. prev->next should be ffffc900048b7e58, but was 0000000000000000
------------[ cut here ]------------
kernel BUG at lib/list_debug.c:61!
invalid opcode: 0000 [#1] PREEMPT SMP KASAN
CPU: 0 PID: 6697 Comm: gfs2_quotad Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026
RIP: 0010:__list_del_entry_valid+0x107/0x120 lib/list_debug.c:59
Code: 48 89 de e8 3b 59 ca 05 0f 0b 48 c7 c7 00 0e 7a 8a 48 89 de e8 2a 59 ca 05 0f 0b 48 c7 c7 60 0e 7a 8a 48 89 de e8 19 59 ca 05 <0f> 0b 48 c7 c7 c0 0e 7a 8a 48 89 de e8 08 59 ca 05 0f 0b 00 00 cc
RSP: 0018:ffffc900048b7d10 EFLAGS: 00010046
RAX: 0000000000000054 RBX: ffffc900048b7e58 RCX: 70546e24d22eaa00
RDX: 0000000000000000 RSI: 0000000080000001 RDI: 0000000000000000
RBP: dffffc0000000000 R08: ffffc900048b7827 R09: 1ffff92000916f04
R10: dffffc0000000000 R11: fffff52000916f05 R12: dffffc0000000000
R13: ffff888024168b98 R14: ffff888024168bd8 R15: ffff888024168bd8
FS:  0000000000000000(0000) GS:ffff8880b9000000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fa80db64000 CR3: 000000001ea08000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 __list_del_entry include/linux/list.h:132 [inline]
 list_del_init include/linux/list.h:204 [inline]
 finish_wait+0xc0/0x1d0 kernel/sched/wait.c:408
 gfs2_quotad+0x710/0x890 fs/gfs2/quota.c:1605
 kthread+0x436/0x520 kernel/kthread.c:334
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:287
 </TASK>
Modules linked in:
---[ end trace e77b848afba8ef77 ]---
RIP: 0010:__list_del_entry_valid+0x107/0x120 lib/list_debug.c:59
Code: 48 89 de e8 3b 59 ca 05 0f 0b 48 c7 c7 00 0e 7a 8a 48 89 de e8 2a 59 ca 05 0f 0b 48 c7 c7 60 0e 7a 8a 48 89 de e8 19 59 ca 05 <0f> 0b 48 c7 c7 c0 0e 7a 8a 48 89 de e8 08 59 ca 05 0f 0b 00 00 cc
RSP: 0018:ffffc900048b7d10 EFLAGS: 00010046
RAX: 0000000000000054 RBX: ffffc900048b7e58 RCX: 70546e24d22eaa00
RDX: 0000000000000000 RSI: 0000000080000001 RDI: 0000000000000000
RBP: dffffc0000000000 R08: ffffc900048b7827 R09: 1ffff92000916f04
R10: dffffc0000000000 R11: fffff52000916f05 R12: dffffc0000000000
R13: ffff888024168b98 R14: ffff888024168bd8 R15: ffff888024168bd8
FS:  0000000000000000(0000) GS:ffff8880b9000000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fa80db64000 CR3: 000000001ea08000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400