------------[ cut here ]------------
workqueue: cannot queue hci_conn_timeout on wq hci2
WARNING: kernel/workqueue.c:2353 at __queue_work+0xd83/0x10d0 kernel/workqueue.c:2352, CPU#0: syz.8.4053/22071
Modules linked in:
CPU: 0 UID: 0 PID: 22071 Comm: syz.8.4053 Tainted: G             L      syzkaller #0 PREEMPT(full) 
Tainted: [L]=SOFTLOCKUP
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
RIP: 0010:__queue_work+0xd9f/0x10d0 kernel/workqueue.c:2352
Code: 49 81 c7 70 01 00 00 4c 8d 35 fd e6 ee 0e 48 89 f8 48 c1 e8 03 80 3c 18 00 74 05 e8 9b 52 a9 00 49 8b 75 18 4c 89 f7 4c 89 fa <67> 48 0f b9 3a 4c 89 e8 48 c1 e8 03 80 3c 18 00 74 08 4c 89 ef e8
RSP: 0018:ffffc90000007bc0 EFLAGS: 00010046
RAX: 1ffff110068ae14d RBX: dffffc0000000000 RCX: ffff88803ebc8000
RDX: ffff88807c7ed170 RSI: ffffffff8ad648f0 RDI: ffffffff907d1d60
RBP: 0000000000010000 R08: 0000000000000100 R09: 1ffffffff20f490f
R10: dffffc0000000000 R11: ffffffff818e3d80 R12: 0000000000000008
R13: ffff888034570a50 R14: ffffffff907d1d60 R15: ffff88807c7ed170
FS:  00007fbdf69b46c0(0000) GS:ffff888124cda000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007feb52e06000 CR3: 000000003ff8c000 CR4: 00000000003526f0
Call Trace:
 <IRQ>
 call_timer_fn+0x18d/0x5f0 kernel/time/timer.c:1748
 expire_timers kernel/time/timer.c:1794 [inline]
 __run_timers kernel/time/timer.c:2374 [inline]
 __run_timer_base+0x67e/0x8b0 kernel/time/timer.c:2386
 run_timer_base kernel/time/timer.c:2395 [inline]
 run_timer_softirq+0xb7/0x170 kernel/time/timer.c:2405
 handle_softirqs+0x226/0x860 kernel/softirq.c:645
 __do_softirq kernel/softirq.c:679 [inline]
 invoke_softirq kernel/softirq.c:519 [inline]
 __irq_exit_rcu+0xcb/0x220 kernel/softirq.c:767
 irq_exit_rcu+0x9/0x30 kernel/softirq.c:784
 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1062 [inline]
 sysvec_apic_timer_interrupt+0xa6/0xc0 arch/x86/kernel/apic/apic.c:1062
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:674
RIP: 0010:__raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:211 [inline]
RIP: 0010:_raw_spin_unlock_irqrestore+0x47/0x80 kernel/locking/spinlock.c:221
Code: f7 e8 5d 9a bd f5 f7 c3 00 02 00 00 74 05 e8 c0 d2 e9 f5 9c 58 a9 00 02 00 00 75 29 f7 c3 00 02 00 00 74 01 fb bf 01 00 00 00 <e8> 14 b6 ae f5 65 48 8b 05 bc 2e ae 07 48 85 c0 74 18 5b 41 5e e9
RSP: 0018:ffffc90003b87630 EFLAGS: 00000206
RAX: 0000000000000002 RBX: 0000000000000a06 RCX: 8000000000000001
RDX: 0000000000000006 RSI: ffffffff8e477d04 RDI: 0000000000000001
RBP: 0000000000000a06 R08: ffffffff907a487f R09: 1ffffffff20f490f
R10: dffffc0000000000 R11: fffffbfff20f4910 R12: dffffc0000000000
R13: ffff888041aaef80 R14: ffff888041aaef80 R15: ffff888052122640
 spin_unlock_irqrestore include/linux/spinlock.h:425 [inline]
 __skb_try_recv_datagram+0x180/0x4e0 net/core/datagram.c:267
 __unix_dgram_recvmsg+0x2e4/0xd70 net/unix/af_unix.c:2590
 sock_recvmsg_nosec+0x130/0x170 net/socket.c:1151
 ____sys_recvmsg+0x3e3/0x4a0 net/socket.c:2931
 ___sys_recvmsg+0x213/0x5a0 net/socket.c:2975
 do_recvmmsg+0x31a/0x7f0 net/socket.c:3070
 __sys_recvmmsg net/socket.c:3144 [inline]
 __do_sys_recvmmsg net/socket.c:3167 [inline]
 __se_sys_recvmmsg net/socket.c:3160 [inline]
 __x64_sys_recvmmsg+0x198/0x250 net/socket.c:3160
 do_syscall_x64 arch/x86/entry/syscall_64.c:61 [inline]
 do_syscall_64+0x166/0x520 arch/x86/entry/syscall_64.c:84
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fbdf5b9e0d9
Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fbdf69b4028 EFLAGS: 00000246 ORIG_RAX: 000000000000012b
RAX: ffffffffffffffda RBX: 00007fbdf5e26090 RCX: 00007fbdf5b9e0d9
RDX: 0000000000010106 RSI: 00002000000000c0 RDI: 0000000000000019
RBP: 00007fbdf5c35024 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000002 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fbdf5e26128 R14: 00007fbdf5e26090 R15: 00007ffd76ef47c8
 </TASK>
----------------
Code disassembly (best guess):
   0:	49 81 c7 70 01 00 00 	add    $0x170,%r15
   7:	4c 8d 35 fd e6 ee 0e 	lea    0xeeee6fd(%rip),%r14        # 0xeeee70b
   e:	48 89 f8             	mov    %rdi,%rax
  11:	48 c1 e8 03          	shr    $0x3,%rax
  15:	80 3c 18 00          	cmpb   $0x0,(%rax,%rbx,1)
  19:	74 05                	je     0x20
  1b:	e8 9b 52 a9 00       	call   0xa952bb
  20:	49 8b 75 18          	mov    0x18(%r13),%rsi
  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:	4c 89 e8             	mov    %r13,%rax
  32:	48 c1 e8 03          	shr    $0x3,%rax
  36:	80 3c 18 00          	cmpb   $0x0,(%rax,%rbx,1)
  3a:	74 08                	je     0x44
  3c:	4c 89 ef             	mov    %r13,%rdi
  3f:	e8                   	.byte 0xe8