------------[ cut here ]------------
workqueue: cannot queue hci_cmd_timeout on wq hci4
WARNING: kernel/workqueue.c:2251 at __queue_work+0xcbb/0x10f0 kernel/workqueue.c:2250, CPU#0: syz.0.2242/14434
Modules linked in:
CPU: 0 UID: 0 PID: 14434 Comm: syz.0.2242 Tainted: G             L      syzkaller #0 PREEMPT(full) 
Tainted: [L]=SOFTLOCKUP
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/24/2026
RIP: 0010:__queue_work+0xcbf/0x10f0 kernel/workqueue.c:2250
Code: 00 00 00 fc ff df 49 8d 94 24 78 01 00 00 48 89 f9 48 c1 e9 03 80 3c 01 00 0f 85 15 04 00 00 48 8d 3d b5 fa eb 0e 48 8b 75 18 <67> 48 0f b9 3a e9 77 f7 ff ff e8 c2 b4 38 00 90 0f 0b 90 e9 ff f5
RSP: 0018:ffffc90000007bf0 EFLAGS: 00010046
RAX: dffffc0000000000 RBX: 0000000000000100 RCX: 1ffff1100d950951
RDX: ffff88805a5ec978 RSI: ffffffff8a6e2740 RDI: ffffffff90ba4560
RBP: ffff88806ca84a70 R08: 0000000000000005 R09: 0000000000000000
R10: 0000000000000100 R11: 0000000000000000 R12: ffff88805a5ec800
R13: 1ffff92000000f8f R14: ffffffff81ce5bb0 R15: 0000000000000001
FS:  0000555563a68500(0000) GS:ffff8881245d9000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b2fc00ff8 CR3: 000000001eebb000 CR4: 00000000003526f0
Call Trace:
 <IRQ>
 call_timer_fn+0x19a/0x590 kernel/time/timer.c:1748
 expire_timers kernel/time/timer.c:1794 [inline]
 __run_timers+0x570/0xac0 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:finish_task_switch.isra.0+0x20d/0xb70 kernel/sched/core.c:5118
Code: f1 e2 0e 48 85 d2 0f 85 7a 06 00 00 85 c0 0f 85 a6 01 00 00 48 89 df e8 31 e5 ff ff e8 3c 57 3a 00 fb 49 8d bc 24 48 16 00 00 <48> b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 0f b6 04 02 84
RSP: 0018:ffffc900043efa78 EFLAGS: 00000202
RAX: 000000000000309d RBX: ffff8880b843ac80 RCX: 0000000000000000
RDX: 0000000000000000 RSI: ffffffff8dc45fd1 RDI: ffff8880790cbb08
RBP: ffffc900043efac0 R08: 0000000000000001 R09: 0000000000000000
R10: 0000000000000001 R11: 0000000000000000 R12: ffff8880790ca4c0
R13: ffff888035bb24c0 R14: ffff88803203a4c0 R15: ffff8880b843bab0
 context_switch kernel/sched/core.c:5263 [inline]
 __schedule+0xfec/0x5e10 kernel/sched/core.c:6867
 __schedule_loop kernel/sched/core.c:6949 [inline]
 schedule+0xdd/0x390 kernel/sched/core.c:6964
 do_nanosleep+0x206/0x560 kernel/time/hrtimer.c:2116
 hrtimer_nanosleep+0x156/0x360 kernel/time/hrtimer.c:2163
 common_nsleep+0xa1/0xd0 kernel/time/posix-timers.c:1352
 __do_sys_clock_nanosleep kernel/time/posix-timers.c:1398 [inline]
 __se_sys_clock_nanosleep kernel/time/posix-timers.c:1375 [inline]
 __x64_sys_clock_nanosleep+0x336/0x480 kernel/time/posix-timers.c:1375
 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: 0033:0x7fc4b1d5b78e
Code: 08 0f 85 a5 a8 ff ff 49 89 fb 48 89 f0 48 89 d7 48 89 ce 4c 89 c2 4d 89 ca 4c 8b 44 24 08 4c 8b 4c 24 10 4c 89 5c 24 08 0f 05 <c3> 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 80 00 00 00 00 48 83 ec 08
RSP: 002b:00007ffdb3b38978 EFLAGS: 00000246 ORIG_RAX: 00000000000000e6
RAX: ffffffffffffffda RBX: 0000555563a68500 RCX: 00007fc4b1d5b78e
RDX: 00007ffdb3b389d0 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 00007fc4b2017da0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00000000000be311
R13: 00007fc4b201618c R14: 00000000000be0c7 R15: 00007ffdb3b38b00
 </TASK>
----------------
Code disassembly (best guess):
   0:	00 00                	add    %al,(%rax)
   2:	00 fc                	add    %bh,%ah
   4:	ff                   	lcall  (bad)
   5:	df 49 8d             	fisttps -0x73(%rcx)
   8:	94                   	xchg   %eax,%esp
   9:	24 78                	and    $0x78,%al
   b:	01 00                	add    %eax,(%rax)
   d:	00 48 89             	add    %cl,-0x77(%rax)
  10:	f9                   	stc
  11:	48 c1 e9 03          	shr    $0x3,%rcx
  15:	80 3c 01 00          	cmpb   $0x0,(%rcx,%rax,1)
  19:	0f 85 15 04 00 00    	jne    0x434
  1f:	48 8d 3d b5 fa eb 0e 	lea    0xeebfab5(%rip),%rdi        # 0xeebfadb
  26:	48 8b 75 18          	mov    0x18(%rbp),%rsi
* 2a:	67 48 0f b9 3a       	ud1    (%edx),%rdi <-- trapping instruction
  2f:	e9 77 f7 ff ff       	jmp    0xfffff7ab
  34:	e8 c2 b4 38 00       	call   0x38b4fb
  39:	90                   	nop
  3a:	0f 0b                	ud2
  3c:	90                   	nop
  3d:	e9                   	.byte 0xe9
  3e:	ff f5                	push   %rbp