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: 1 PID: 7512 Comm: gfs2_quotad Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
Call Trace:
 <TASK>
 dump_stack_lvl+0x188/0x24e lib/dump_stack.c:106
 assign_lock_key+0x201/0x230 kernel/locking/lockdep.c:974
 register_lock_class+0x21d/0x870 kernel/locking/lockdep.c:1287
 __lock_acquire+0x16f/0x7d10 kernel/locking/lockdep.c:4928
 lock_acquire+0x1bb/0x4a0 kernel/locking/lockdep.c:5662
 __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+0xb8/0x1d0 kernel/sched/wait.c:410
 gfs2_quotad+0x4f3/0x680 fs/gfs2/quota.c:1579
 kthread+0x29d/0x330 kernel/kthread.c:376
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295
 </TASK>
list_del corruption. prev->next should be ffffc9000d5ffe58, but was 0000000000000000. (prev=ffff888040ed8bd8)
------------[ cut here ]------------
kernel BUG at lib/list_debug.c:61!
invalid opcode: 0000 [#1] PREEMPT SMP KASAN
CPU: 1 PID: 7512 Comm: gfs2_quotad Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
RIP: 0010:__list_del_entry_valid+0x10a/0x120 lib/list_debug.c:59
Code: e8 9b 03 0d 06 0f 0b 48 c7 c7 60 17 df 8a 48 89 de e8 8a 03 0d 06 0f 0b 48 c7 c7 c0 17 df 8a 48 89 de 4c 89 f9 e8 76 03 0d 06 <0f> 0b 48 c7 c7 40 18 df 8a 48 89 de 4c 89 f1 e8 62 03 0d 06 0f 0b
RSP: 0018:ffffc9000d5ffd30 EFLAGS: 00010046
RAX: 000000000000006d RBX: ffffc9000d5ffe58 RCX: 16213bd0ee7e4000
RDX: 0000000000000000 RSI: 0000000080000001 RDI: 0000000000000000
RBP: dffffc0000000000 R08: ffffc9000d5ff9a7 R09: 1ffff92001abff34
R10: dffffc0000000000 R11: fffff52001abff35 R12: dffffc0000000000
R13: ffff888040ed8b98 R14: ffff888040ed8bd8 R15: ffff888040ed8bd8
FS:  0000000000000000(0000) GS:ffff8880b8f00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b2ed15ff8 CR3: 000000007e61d000 CR4: 00000000003526e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 __list_del_entry include/linux/list.h:134 [inline]
 list_del_init include/linux/list.h:206 [inline]
 finish_wait+0xc3/0x1d0 kernel/sched/wait.c:411
 gfs2_quotad+0x4f3/0x680 fs/gfs2/quota.c:1579
 kthread+0x29d/0x330 kernel/kthread.c:376
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:__list_del_entry_valid+0x10a/0x120 lib/list_debug.c:59
Code: e8 9b 03 0d 06 0f 0b 48 c7 c7 60 17 df 8a 48 89 de e8 8a 03 0d 06 0f 0b 48 c7 c7 c0 17 df 8a 48 89 de 4c 89 f9 e8 76 03 0d 06 <0f> 0b 48 c7 c7 40 18 df 8a 48 89 de 4c 89 f1 e8 62 03 0d 06 0f 0b
RSP: 0018:ffffc9000d5ffd30 EFLAGS: 00010046
RAX: 000000000000006d RBX: ffffc9000d5ffe58 RCX: 16213bd0ee7e4000
RDX: 0000000000000000 RSI: 0000000080000001 RDI: 0000000000000000
RBP: dffffc0000000000 R08: ffffc9000d5ff9a7 R09: 1ffff92001abff34
R10: dffffc0000000000 R11: fffff52001abff35 R12: dffffc0000000000
R13: ffff888040ed8b98 R14: ffff888040ed8bd8 R15: ffff888040ed8bd8
FS:  0000000000000000(0000) GS:ffff8880b8f00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b2ed15ff8 CR3: 000000007e61d000 CR4: 00000000003526e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400