------------[ cut here ]------------
ODEBUG: free active (active state 0) object: ffff888042c543e0 object type: timer_list hint: gb_operation_timeout+0x0/0x110 drivers/greybus/operation.c:1265
WARNING: lib/debugobjects.c:632 at debug_print_object+0xec/0x230 lib/debugobjects.c:629, CPU#1: kworker/1:3/15187
Modules linked in:
CPU: 1 UID: 0 PID: 15187 Comm: kworker/1:3 Tainted: G             L       syzkaller #0 PREEMPT(full) 
Tainted: [L]=SOFTLOCKUP
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/16/2026
Workqueue: greybus_completion gb_operation_work
RIP: 0010:debug_print_object+0x18a/0x230 lib/debugobjects.c:629
Code: f8 48 c1 e8 03 80 3c 18 00 74 08 4c 89 ff e8 3d cb 47 fd 4d 8b 0f 4c 89 ef 48 8b 74 24 08 48 89 ea 44 89 e1 4d 89 f0 ff 34 24 <67> 48 0f b9 3a 48 83 c4 08 ff 05 a3 a7 a5 0c 48 83 c4 10 5b 41 5c
RSP: 0018:ffffc90003bb7980 EFLAGS: 00010246
RAX: 1ffffffff185f420 RBX: dffffc0000000000 RCX: 0000000000000000
RDX: ffffffff8c8e7d40 RSI: ffffffff8c8e77c0 RDI: ffffffff91a85a90
RBP: ffffffff8c8e7d40 R08: ffff888042c543e0 R09: ffffffff8c2fb460
R10: dffffc0000000000 R11: ffffffff81b4d940 R12: 0000000000000000
R13: ffffffff91a85a90 R14: ffff888042c543e0 R15: ffffffff8c2fa100
FS:  0000000000000000(0000) GS:ffff88812372d000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b32f01ff8 CR3: 0000000080c26000 CR4: 00000000003526f0
Call Trace:
 <TASK>
 __debug_check_no_obj_freed lib/debugobjects.c:1171 [inline]
 debug_check_no_obj_freed+0x2e3/0x450 lib/debugobjects.c:1201
 slab_free_hook mm/slub.c:2711 [inline]
 slab_free mm/slub.c:6630 [inline]
 kmem_cache_free+0xfd/0x650 mm/slub.c:6757
 process_one_work kernel/workqueue.c:3495 [inline]
 process_scheduled_works+0xc3d/0x1630 kernel/workqueue.c:3578
 worker_thread+0xa47/0xfb0 kernel/workqueue.c:3659
 kthread+0x38b/0x480 kernel/kthread.c:436
 ret_from_fork+0x514/0xb70 arch/x86/kernel/process.c:158
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245
 </TASK>
----------------
Code disassembly (best guess):
   0:	f8                   	clc
   1:	48 c1 e8 03          	shr    $0x3,%rax
   5:	80 3c 18 00          	cmpb   $0x0,(%rax,%rbx,1)
   9:	74 08                	je     0x13
   b:	4c 89 ff             	mov    %r15,%rdi
   e:	e8 3d cb 47 fd       	call   0xfd47cb50
  13:	4d 8b 0f             	mov    (%r15),%r9
  16:	4c 89 ef             	mov    %r13,%rdi
  19:	48 8b 74 24 08       	mov    0x8(%rsp),%rsi
  1e:	48 89 ea             	mov    %rbp,%rdx
  21:	44 89 e1             	mov    %r12d,%ecx
  24:	4d 89 f0             	mov    %r14,%r8
  27:	ff 34 24             	push   (%rsp)
* 2a:	67 48 0f b9 3a       	ud1    (%edx),%rdi <-- trapping instruction
  2f:	48 83 c4 08          	add    $0x8,%rsp
  33:	ff 05 a3 a7 a5 0c    	incl   0xca5a7a3(%rip)        # 0xca5a7dc
  39:	48 83 c4 10          	add    $0x10,%rsp
  3d:	5b                   	pop    %rbx
  3e:	41 5c                	pop    %r12