------------[ cut here ]------------
ODEBUG: free active (active state 0) object: ffff8880569fbc90 object type: timer_list hint: rose_t0timer_expiry+0x0/0x150 include/linux/skbuff.h:2927
WARNING: lib/debugobjects.c:612 at debug_print_object+0x18e/0x2a0 lib/debugobjects.c:612, CPU#0: udevd/5187
Modules linked in:
CPU: 0 UID: 0 PID: 5187 Comm: udevd Not tainted syzkaller #0 PREEMPT(full) 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/13/2026
RIP: 0010:debug_print_object+0x19b/0x2a0 lib/debugobjects.c:612
Code: b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 80 3c 02 00 75 4f 48 8d 3d e2 e2 d3 0b 41 56 48 8b 14 dd e0 44 fa 8b 4c 89 e6 <67> 48 0f b9 3a 58 83 05 fc a4 c9 0b 01 48 83 c4 18 5b 5d 41 5c 41
RSP: 0018:ffffc90000007a18 EFLAGS: 00010246
RAX: dffffc0000000000 RBX: 0000000000000003 RCX: 0000000000000000
RDX: ffffffff8bfa4420 RSI: ffffffff8bfa4040 RDI: ffffffff90c1e230
RBP: 0000000000000001 R08: ffff8880569fbc90 R09: ffffffff8b92b900
R10: 0000000000000001 R11: 0000000000000000 R12: ffffffff8bfa4040
R13: ffffffff8b92b940 R14: ffffffff8a64a2a0 R15: ffffc90000007b18
FS:  00007f307b60b880(0000) GS:ffff8881245dc000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007effcfa0c000 CR3: 000000003082d000 CR4: 0000000000350ef0
Call Trace:
 <IRQ>
 __debug_check_no_obj_freed lib/debugobjects.c:1099 [inline]
 debug_check_no_obj_freed+0x4da/0x630 lib/debugobjects.c:1129
 slab_free_hook mm/slub.c:2471 [inline]
 slab_free mm/slub.c:6674 [inline]
 kfree+0x34c/0x690 mm/slub.c:6882
 rose_neigh_put include/net/rose.h:166 [inline]
 rose_timer_expiry+0x53f/0x630 net/rose/rose_timer.c:183
 call_timer_fn+0x19a/0x590 kernel/time/timer.c:1748
 expire_timers kernel/time/timer.c:1799 [inline]
 __run_timers+0x757/0xac0 kernel/time/timer.c:2373
 __run_timer_base kernel/time/timer.c:2385 [inline]
 __run_timer_base kernel/time/timer.c:2377 [inline]
 run_timer_base+0x114/0x190 kernel/time/timer.c:2394
 run_timer_softirq+0x1a/0x50 kernel/time/timer.c:2404
 handle_softirqs+0x1ea/0x910 kernel/softirq.c:622
 __do_softirq kernel/softirq.c:656 [inline]
 invoke_softirq kernel/softirq.c:496 [inline]
 __irq_exit_rcu+0xef/0x150 kernel/softirq.c:723
 irq_exit_rcu+0x9/0x30 kernel/softirq.c:739
 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1056 [inline]
 sysvec_apic_timer_interrupt+0xa3/0xc0 arch/x86/kernel/apic/apic.c:1056
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:697
RIP: 0010:trace_lock_acquire include/trace/events/lock.h:24 [inline]
RIP: 0010:lock_acquire+0x4a/0x330 kernel/locking/lockdep.c:5831
Code: 65 4c 8b 3d a0 42 01 12 4c 89 7c 24 30 4d 89 cf 66 90 65 8b 05 bb 42 01 12 83 f8 07 0f 87 a4 02 00 00 48 0f a3 05 46 76 d4 0e <0f> 82 6f 02 00 00 8b 35 be a6 d4 0e 85 f6 0f 85 8a 00 00 00 48 8b
RSP: 0018:ffffc9000400fbf0 EFLAGS: 00000297
RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000
RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffffff8e7c8700
RBP: ffffffff8e7c8700 R08: 0000000000000001 R09: 0000000000000000
R10: 0000000000000200 R11: 0000000000000000 R12: 0000000000000000
R13: 0000000000000001 R14: 0000000000000000 R15: 0000000000000000
 fs_reclaim_acquire mm/page_alloc.c:4348 [inline]
 fs_reclaim_acquire+0x8c/0x100 mm/page_alloc.c:4339
 might_alloc include/linux/sched/mm.h:317 [inline]
 slab_pre_alloc_hook mm/slub.c:4904 [inline]
 slab_alloc_node mm/slub.c:5239 [inline]
 kmem_cache_alloc_noprof+0x5b/0x780 mm/slub.c:5270
 getname_flags.part.0+0x4c/0x540 fs/namei.c:146
 getname_flags+0x93/0xf0 include/linux/audit.h:345
 getname include/linux/fs.h:2498 [inline]
 getname_maybe_null include/linux/fs.h:2505 [inline]
 getname_maybe_null include/linux/fs.h:2502 [inline]
 vfs_fstatat+0xe1/0xf0 fs/stat.c:370
 __do_sys_newfstatat+0x9d/0x120 fs/stat.c:542
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0xc9/0xf80 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f307af11b0a
Code: 48 8b 15 f1 f2 0d 00 f7 d8 64 89 02 b8 ff ff ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 41 89 ca b8 06 01 00 00 0f 05 <3d> 00 f0 ff ff 77 07 31 c0 c3 0f 1f 40 00 48 8b 15 b9 f2 0d 00 f7
RSP: 002b:00007ffddae4cfe8 EFLAGS: 00000246 ORIG_RAX: 0000000000000106
RAX: ffffffffffffffda RBX: 00007ffddae4d480 RCX: 00007f307af11b0a
RDX: 00007ffddae4cff0 RSI: 00007ffddae4d480 RDI: 00000000ffffff9c
RBP: 0000558e4babe910 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffddae4d080
R13: 0000558e21c8b100 R14: 0000000000000000 R15: 00007ffddae4daa0
 </TASK>
----------------
Code disassembly (best guess):
   0:	b8 00 00 00 00       	mov    $0x0,%eax
   5:	00 fc                	add    %bh,%ah
   7:	ff                   	lcall  (bad)
   8:	df 48 89             	fisttps -0x77(%rax)
   b:	fa                   	cli
   c:	48 c1 ea 03          	shr    $0x3,%rdx
  10:	80 3c 02 00          	cmpb   $0x0,(%rdx,%rax,1)
  14:	75 4f                	jne    0x65
  16:	48 8d 3d e2 e2 d3 0b 	lea    0xbd3e2e2(%rip),%rdi        # 0xbd3e2ff
  1d:	41 56                	push   %r14
  1f:	48 8b 14 dd e0 44 fa 	mov    -0x7405bb20(,%rbx,8),%rdx
  26:	8b
  27:	4c 89 e6             	mov    %r12,%rsi
* 2a:	67 48 0f b9 3a       	ud1    (%edx),%rdi <-- trapping instruction
  2f:	58                   	pop    %rax
  30:	83 05 fc a4 c9 0b 01 	addl   $0x1,0xbc9a4fc(%rip)        # 0xbc9a533
  37:	48 83 c4 18          	add    $0x18,%rsp
  3b:	5b                   	pop    %rbx
  3c:	5d                   	pop    %rbp
  3d:	41 5c                	pop    %r12
  3f:	41                   	rex.B