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: 4520 Comm: gfs2_quotad Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025
Call trace:
 dump_backtrace+0x1c8/0x1f4 arch/arm64/kernel/stacktrace.c:158
 show_stack+0x2c/0x3c arch/arm64/kernel/stacktrace.c:165
 __dump_stack+0x30/0x40 lib/dump_stack.c:88
 dump_stack_lvl+0xf8/0x160 lib/dump_stack.c:106
 dump_stack+0x1c/0x5c lib/dump_stack.c:113
 assign_lock_key+0x224/0x258 kernel/locking/lockdep.c:974
 register_lock_class+0x1ac/0x694 kernel/locking/lockdep.c:1287
 __lock_acquire+0x150/0x6544 kernel/locking/lockdep.c:4928
 lock_acquire+0x20c/0x644 kernel/locking/lockdep.c:5662
 __raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:110 [inline]
 _raw_spin_lock_irqsave+0x6c/0xb4 kernel/locking/spinlock.c:162
 finish_wait+0xc8/0x1ac kernel/sched/wait.c:410
 gfs2_quotad+0x390/0x4fc fs/gfs2/quota.c:1579
 kthread+0x250/0x2d8 kernel/kthread.c:376
 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:850
list_del corruption. prev->next should be ffff800021777d98, but was 0000000000000000. (prev=ffff0000d36b4bd8)
------------[ cut here ]------------
kernel BUG at lib/list_debug.c:61!
Internal error: Oops - BUG: 00000000f2000800 [#1] PREEMPT SMP
Modules linked in:
CPU: 1 PID: 4520 Comm: gfs2_quotad Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025
pstate: 624000c5 (nZCv daIF +PAN -UAO +TCO -DIT -SSBS BTYPE=--)
pc : __list_del_entry_valid+0x13c/0x158 lib/list_debug.c:59
lr : __list_del_entry_valid+0x13c/0x158 lib/list_debug.c:59
sp : ffff800021777c70
x29: ffff800021777c70 x28: 0000000000000000 x27: 0000000000000bb8
x26: 0000000000001770 x25: dfff800000000000 x24: dfff800000000000
x23: ffff0000d36b47c0 x22: dfff800000000000 x21: ffff0000d36b4bd8
x20: ffff0000d36b4bd8 x19: ffff800021777d98 x18: ffff800011abbcc0
x17: 20747562202c3839 x16: ffff8000082e7de8 x15: 0000000000000000
x14: 00000000ffffffff x13: 0000000000000001 x12: 0000000000ff0100
x11: ff0080000830a28c x10: 0000000000000000 x9 : 06cf463a5c157800
x8 : 06cf463a5c157800 x7 : 0000000000000001 x6 : 0000000000000001
x5 : ffff800021777738 x4 : ffff8000151a4920 x3 : ffff800008311fcc
x2 : 0000000000000001 x1 : 0000000100000001 x0 : 000000000000006d
Call trace:
 __list_del_entry_valid+0x13c/0x158 lib/list_debug.c:59
 __list_del_entry include/linux/list.h:134 [inline]
 list_del_init include/linux/list.h:206 [inline]
 finish_wait+0xd4/0x1ac kernel/sched/wait.c:411
 gfs2_quotad+0x390/0x4fc fs/gfs2/quota.c:1579
 kthread+0x250/0x2d8 kernel/kthread.c:376
 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:850
Code: 91028000 aa1303e1 aa1503e3 95bfbbe3 (d4210000) 
---[ end trace 0000000000000000 ]---