------------[ cut here ]------------
workqueue: cannot queue hci_cmd_timeout on wq hci5
WARNING: kernel/workqueue.c:2271 at __queue_work+0xd16/0xff0 kernel/workqueue.c:2269, CPU#1: ktimers/1/29
Modules linked in:
CPU: 1 UID: 0 PID: 29 Comm: ktimers/1 Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
RIP: 0010:__queue_work+0xd40/0xff0 kernel/workqueue.c:2269
Code: 48 83 c3 18 48 89 d8 48 c1 e8 03 42 80 3c 28 00 74 08 48 89 df e8 e0 10 9d 00 48 8b 33 49 81 c7 68 01 00 00 4c 89 f7 4c 89 fa <67> 48 0f b9 3a 48 83 c4 68 5b 41 5c 41 5d 41 5e 41 5f 5d c3 cc cc
RSP: 0018:ffffc90000a3f9a0 EFLAGS: 00010082
RAX: 1ffff11006645153 RBX: ffff888033228a98 RCX: ffff88801d2bbc80
RDX: ffff888063008168 RSI: ffffffff8a132f70 RDI: ffffffff8f6cfb90
RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000100
R10: dffffc0000000000 R11: ffffffff818d5250 R12: 0000000000000100
R13: dffffc0000000000 R14: ffffffff8f6cfb90 R15: ffff888063008168
FS:  0000000000000000(0000) GS:ffff888126440000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f3c194122fb CR3: 000000000dbba000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 000000000000000e DR6: 00000000ffff0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 call_timer_fn+0x192/0x640 kernel/time/timer.c:1748
 expire_timers kernel/time/timer.c:1794 [inline]
 __run_timers kernel/time/timer.c:2373 [inline]
 __run_timer_base+0x764/0x9f0 kernel/time/timer.c:2385
 run_timer_base kernel/time/timer.c:2394 [inline]
 run_timer_softirq+0xb7/0x170 kernel/time/timer.c:2404
 handle_softirqs+0x1de/0x6f0 kernel/softirq.c:622
 __do_softirq kernel/softirq.c:656 [inline]
 run_ktimerd+0x69/0x100 kernel/softirq.c:1138
 smpboot_thread_fn+0x541/0xa50 kernel/smpboot.c:160
 kthread+0x388/0x470 kernel/kthread.c:467
 ret_from_fork+0x51e/0xb90 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:	48 83 c3 18          	add    $0x18,%rbx
   4:	48 89 d8             	mov    %rbx,%rax
   7:	48 c1 e8 03          	shr    $0x3,%rax
   b:	42 80 3c 28 00       	cmpb   $0x0,(%rax,%r13,1)
  10:	74 08                	je     0x1a
  12:	48 89 df             	mov    %rbx,%rdi
  15:	e8 e0 10 9d 00       	call   0x9d10fa
  1a:	48 8b 33             	mov    (%rbx),%rsi
  1d:	49 81 c7 68 01 00 00 	add    $0x168,%r15
  24:	4c 89 f7             	mov    %r14,%rdi
  27:	4c 89 fa             	mov    %r15,%rdx
* 2a:	67 48 0f b9 3a       	ud1    (%edx),%rdi <-- trapping instruction
  2f:	48 83 c4 68          	add    $0x68,%rsp
  33:	5b                   	pop    %rbx
  34:	41 5c                	pop    %r12
  36:	41 5d                	pop    %r13
  38:	41 5e                	pop    %r14
  3a:	41 5f                	pop    %r15
  3c:	5d                   	pop    %rbp
  3d:	c3                   	ret
  3e:	cc                   	int3
  3f:	cc                   	int3