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workqueue: cannot queue hci_cmd_timeout on wq hci3
WARNING: CPU: 1 PID: 21338 at kernel/workqueue.c:2255 __queue_work+0xd03/0x1160 kernel/workqueue.c:2254
Modules linked in:
CPU: 1 UID: 0 PID: 21338 Comm: vhost-21337 Not tainted syzkaller #0 PREEMPT(full) 
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014
RIP: 0010:__queue_work+0xd03/0x1160 kernel/workqueue.c:2254
Code: 00 00 fc ff df 48 89 fa 48 c1 ea 03 80 3c 02 00 0f 85 4b 04 00 00 48 8b 75 18 4c 89 fa 48 c7 c7 a0 03 ac 8b e8 be 1e f7 ff 90 <0f> 0b 90 90 e9 2f f7 ff ff e8 ff 79 38 00 90 0f 0b 90 e9 b4 f5 ff
RSP: 0018:ffffc900006a0be8 EFLAGS: 00010082
RAX: 0000000000000000 RBX: 0000000000000000 RCX: ffffffff817a4388
RDX: ffff88802a30c880 RSI: ffffffff817a4395 RDI: 0000000000000001
RBP: ffff88803f1ec970 R08: 0000000000000001 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: 1ffff920000d418f
R13: 0000000080000100 R14: ffffffff81833490 R15: ffff888031d59178
FS:  00007f2b18d3c6c0(0000) GS:ffff8880d67b2000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000000000 CR3: 000000003e115000 CR4: 0000000000352ef0
Call Trace:
 <IRQ>
 call_timer_fn+0x197/0x620 kernel/time/timer.c:1747
 expire_timers kernel/time/timer.c:1793 [inline]
 __run_timers+0x569/0x960 kernel/time/timer.c:2372
 __run_timer_base kernel/time/timer.c:2384 [inline]
 __run_timer_base kernel/time/timer.c:2376 [inline]
 run_timer_base+0x114/0x190 kernel/time/timer.c:2393
 run_timer_softirq+0x1a/0x40 kernel/time/timer.c:2403
 handle_softirqs+0x219/0x8e0 kernel/softirq.c:579
 __do_softirq kernel/softirq.c:613 [inline]
 invoke_softirq kernel/softirq.c:453 [inline]
 __irq_exit_rcu+0x109/0x170 kernel/softirq.c:680
 irq_exit_rcu+0x9/0x30 kernel/softirq.c:696
 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1050 [inline]
 sysvec_apic_timer_interrupt+0xa4/0xc0 arch/x86/kernel/apic/apic.c:1050
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702
RIP: 0010:lock_is_held_type+0x107/0x150 kernel/locking/lockdep.c:5945
Code: 00 00 b8 ff ff ff ff 65 0f c1 05 dc 71 42 08 83 f8 01 75 2d 9c 58 f6 c4 02 75 43 48 f7 04 24 00 02 00 00 74 01 fb 48 83 c4 08 <44> 89 e8 5b 5d 41 5c 41 5d 41 5e 41 5f e9 47 00 03 00 45 31 ed eb
RSP: 0018:ffffc9000dfcfd18 EFLAGS: 00000286
RAX: 0000000000000046 RBX: 1ffff92001bf9fac RCX: 0000000000000001
RDX: 0000000000000000 RSI: ffffffff8de2d6e8 RDI: ffffffff8c163300
RBP: ffffffff8e5c1540 R08: 0000000000000001 R09: 0000000000000001
R10: ffffffff90ab7297 R11: 0000000000000000 R12: ffff88802a30c880
R13: 0000000000000000 R14: 00000000ffffffff R15: 0000000000000000
 lock_is_held include/linux/lockdep.h:249 [inline]
 __might_resched+0x473/0x5e0 kernel/sched/core.c:8919
 vhost_run_work_list+0x1a3/0x230 drivers/vhost/vhost.c:456
 vhost_task_fn+0x162/0x460 kernel/vhost_task.c:49
 ret_from_fork+0x56a/0x730 arch/x86/kernel/process.c:148
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245
 </TASK>
----------------
Code disassembly (best guess):
   0:	00 00                	add    %al,(%rax)
   2:	b8 ff ff ff ff       	mov    $0xffffffff,%eax
   7:	65 0f c1 05 dc 71 42 	xadd   %eax,%gs:0x84271dc(%rip)        # 0x84271eb
   e:	08
   f:	83 f8 01             	cmp    $0x1,%eax
  12:	75 2d                	jne    0x41
  14:	9c                   	pushf
  15:	58                   	pop    %rax
  16:	f6 c4 02             	test   $0x2,%ah
  19:	75 43                	jne    0x5e
  1b:	48 f7 04 24 00 02 00 	testq  $0x200,(%rsp)
  22:	00
  23:	74 01                	je     0x26
  25:	fb                   	sti
  26:	48 83 c4 08          	add    $0x8,%rsp
* 2a:	44 89 e8             	mov    %r13d,%eax <-- trapping instruction
  2d:	5b                   	pop    %rbx
  2e:	5d                   	pop    %rbp
  2f:	41 5c                	pop    %r12
  31:	41 5d                	pop    %r13
  33:	41 5e                	pop    %r14
  35:	41 5f                	pop    %r15
  37:	e9 47 00 03 00       	jmp    0x30083
  3c:	45 31 ed             	xor    %r13d,%r13d
  3f:	eb                   	.byte 0xeb