------------[ cut here ]------------
workqueue: cannot queue hci_cmd_timeout on wq hci4
WARNING: kernel/workqueue.c:2257 at 0x0, CPU#1: swapper/1/0
Modules linked in:
CPU: 1 UID: 0 PID: 0 Comm: swapper/1 Not tainted syzkaller #0 PREEMPT(full) 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
RIP: 0010:__queue_work+0xcab/0x10f0 kernel/workqueue.c:2256
Code: 78 01 00 00 48 b8 00 00 00 00 00 fc ff df 48 89 f9 48 c1 e9 03 80 3c 01 00 0f 85 0c 04 00 00 48 8d 3d c9 6a 04 0f 48 8b 75 18 <67> 48 0f b9 3a e9 86 f7 ff ff e8 e6 96 39 00 90 0f 0b 90 e9 0b f6
RSP: 0018:ffffc90000a08be8 EFLAGS: 00010046
RAX: dffffc0000000000 RBX: 0000000000000100 RCX: 1ffff1100f18b132
RDX: ffff888027980978 RSI: ffffffff8a53c810 RDI: ffffffff908882e0
RBP: ffff888078c58978 R08: 0000000000000005 R09: 0000000000000000
R10: 0000000000000100 R11: 00000000ffffffff R12: 1ffff9200014118f
R13: ffffffff81842960 R14: 0000000000000101 R15: ffff888027980800
FS:  0000000000000000(0000) GS:ffff888124aa3000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000200000012000 CR3: 0000000074a13000 CR4: 00000000003526f0
Call Trace:
 <IRQ>
 call_timer_fn+0x19a/0x5a0 kernel/time/timer.c:1748
 expire_timers kernel/time/timer.c:1794 [inline]
 __run_timers+0x569/0xae0 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/0x40 kernel/time/timer.c:2404
 handle_softirqs+0x219/0x8b0 kernel/softirq.c:622
 __do_softirq kernel/softirq.c:656 [inline]
 invoke_softirq kernel/softirq.c:496 [inline]
 __irq_exit_rcu+0x109/0x170 kernel/softirq.c:723
 irq_exit_rcu+0x9/0x30 kernel/softirq.c:739
 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1055 [inline]
 sysvec_apic_timer_interrupt+0xa4/0xc0 arch/x86/kernel/apic/apic.c:1055
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:697
RIP: 0010:default_idle_call+0x98/0xb0 kernel/sched/idle.c:131
Code: 3c 24 e8 0b d9 ff ff e8 c6 e9 ff ff 90 e8 80 f1 ff ff bf ff ff ff ff 89 c6 e8 84 8a 33 f6 e8 0f 2a 33 f6 e8 8a 9f 67 f6 fb 90 <c3> cc cc cc cc 90 0f 0b 90 eb ab 66 2e 0f 1f 84 00 00 00 00 00 0f
RSP: 0018:ffffc90000197df8 EFLAGS: 00000206
RAX: 000000000096806f RBX: 0000000000000001 RCX: ffffffff819195d1
RDX: 0000000000000000 RSI: ffffffff8daa1838 RDI: ffffffff8bf1b880
RBP: ffffed1003b54498 R08: 0000000000000001 R09: 0000000000000001
R10: ffffffff908599d7 R11: 00000000ffffffff R12: 0000000000000001
R13: ffff88801daa24c0 R14: ffffffff908599d0 R15: 0000000000000000
 cpuidle_idle_call kernel/sched/idle.c:190 [inline]
 do_idle+0x38d/0x500 kernel/sched/idle.c:330
 cpu_startup_entry+0x4f/0x60 kernel/sched/idle.c:428
 start_secondary+0x21d/0x2b0 arch/x86/kernel/smpboot.c:315
 common_startup_64+0x13e/0x148
 </TASK>
----------------
Code disassembly (best guess):
   0:	78 01                	js     0x3
   2:	00 00                	add    %al,(%rax)
   4:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   b:	fc ff df
   e:	48 89 f9             	mov    %rdi,%rcx
  11:	48 c1 e9 03          	shr    $0x3,%rcx
  15:	80 3c 01 00          	cmpb   $0x0,(%rcx,%rax,1)
  19:	0f 85 0c 04 00 00    	jne    0x42b
  1f:	48 8d 3d c9 6a 04 0f 	lea    0xf046ac9(%rip),%rdi        # 0xf046aef
  26:	48 8b 75 18          	mov    0x18(%rbp),%rsi
* 2a:	67 48 0f b9 3a       	ud1    (%edx),%rdi <-- trapping instruction
  2f:	e9 86 f7 ff ff       	jmp    0xfffff7ba
  34:	e8 e6 96 39 00       	call   0x39971f
  39:	90                   	nop
  3a:	0f 0b                	ud2
  3c:	90                   	nop
  3d:	e9                   	.byte 0xe9
  3e:	0b f6                	or     %esi,%esi