------------[ cut here ]------------
workqueue: cannot queue hci_conn_timeout on wq hci2
WARNING: kernel/workqueue.c:2270 at __queue_work+0xd08/0x1150 kernel/workqueue.c:2269, CPU#0: dhcpcd/5645
Modules linked in:
CPU: 0 UID: 0 PID: 5645 Comm: dhcpcd Tainted: G             L      syzkaller #0 PREEMPT(full) 
Tainted: [L]=SOFTLOCKUP
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014
RIP: 0010:__queue_work+0xd0c/0x1150 kernel/workqueue.c:2269
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 04 04 00 00 48 8d 3d 18 b0 0c 0f 48 8b 75 18 <67> 48 0f b9 3a e9 2a f7 ff ff e8 65 e5 38 00 90 0f 0b 90 e9 b2 f5
RSP: 0018:ffffc90000007be8 EFLAGS: 00010046
RAX: dffffc0000000000 RBX: 0000000000000100 RCX: 1ffff110058bd14b
RDX: ffff88802bd35178 RSI: ffffffff8a86edd0 RDI: ffffffff90dc8440
RBP: ffff88802c5e8a40 R08: 0000000000000005 R09: 0000000000000000
R10: 0000000000000100 R11: 0000000000000001 R12: ffff88802bd35000
R13: 1ffff92000000f8f R14: ffffffff81cfe540 R15: 0000000000000001
FS:  00007f7f905fa780(0000) GS:ffff8880d6345000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007ffcb4d0a730 CR3: 0000000037f07000 CR4: 0000000000352ef0
Call Trace:
 <IRQ>
 call_timer_fn+0x19a/0x670 kernel/time/timer.c:1748
 expire_timers kernel/time/timer.c:1794 [inline]
 __run_timers+0x570/0xb30 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+0x1eb/0x9e0 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:unwind_next_frame+0x101b/0x1ea0 arch/x86/kernel/unwind_orc.c:536
Code: 00 48 c7 c1 00 1d 64 8e 84 c0 0f 85 bc f4 ff ff e9 f2 f2 ff ff 48 b8 00 00 00 00 00 fc ff df 49 8d 7d 40 48 89 fa 48 c1 ea 03 <80> 3c 02 00 0f 85 8d 0b 00 00 48 89 c8 4d 8b 7d 40 48 ba 00 00 00
RSP: 0018:ffffc900062a7298 EFLAGS: 00000a06
RAX: dffffc0000000000 RBX: 0000000000000001 RCX: ffffffff922c8092
RDX: 1ffff92000c54e69 RSI: 0000000000000001 RDI: ffffc900062a7348
RBP: ffffc900062a7350 R08: ffffffff922c8096 R09: 0000000000000007
R10: 0000000000000200 R11: 00000000000a8f01 R12: ffffc900062a7358
R13: ffffc900062a7308 R14: 0000000000000004 R15: 0000000000000000
 arch_stack_walk+0x94/0xf0 arch/x86/kernel/stacktrace.c:25
 stack_trace_save+0x8e/0xc0 kernel/stacktrace.c:122
 kasan_save_stack+0x30/0x50 mm/kasan/common.c:57
 kasan_save_track+0x14/0x30 mm/kasan/common.c:78
 kasan_save_free_info+0x3b/0x70 mm/kasan/generic.c:584
 poison_slab_object mm/kasan/common.c:253 [inline]
 __kasan_slab_free+0x5f/0x80 mm/kasan/common.c:285
 kasan_slab_free include/linux/kasan.h:235 [inline]
 slab_free_hook mm/slub.c:2692 [inline]
 slab_free mm/slub.c:6168 [inline]
 kmem_cache_free+0x124/0x6a0 mm/slub.c:6298
 audit_log_end+0x1f/0x30 kernel/audit.c:2797
 common_lsm_audit+0x24c/0x2b0 security/lsm_audit.c:456
 slow_avc_audit+0x186/0x210 security/selinux/avc.c:779
 avc_audit security/selinux/include/avc.h:131 [inline]
 avc_has_perm+0x1a6/0x1e0 security/selinux/avc.c:1198
 sock_has_perm+0x251/0x2f0 security/selinux/hooks.c:4820
 security_socket_recvmsg+0xa5/0x260 security/security.c:4227
 sock_recvmsg+0x4a/0x1f0 net/socket.c:1098
 ____sys_recvmsg+0x218/0x640 net/socket.c:2812
 ___sys_recvmsg+0x16a/0x1a0 net/socket.c:2854
 __sys_recvmsg+0x16d/0x220 net/socket.c:2887
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0x106/0xf80 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f7f90684407
Code: 48 89 fa 4c 89 df e8 38 aa 00 00 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 1a 5b c3 0f 1f 84 00 00 00 00 00 48 8b 44 24 10 0f 05 <5b> c3 0f 1f 80 00 00 00 00 83 e2 39 83 fa 08 75 de e8 23 ff ff ff
RSP: 002b:00007ffed349c030 EFLAGS: 00000202 ORIG_RAX: 000000000000002f
RAX: ffffffffffffffda RBX: 00007f7f905fa780 RCX: 00007f7f90684407
RDX: 0000000000000000 RSI: 00007ffed349c0c0 RDI: 0000000000000010
RBP: 00007ffed349e500 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000202 R12: 0000555761dee870
R13: 00007ffed349c180 R14: 00007ffed349c0cc R15: 00007ffed349e2b0
 </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 04 04 00 00    	jne    0x423
  1f:	48 8d 3d 18 b0 0c 0f 	lea    0xf0cb018(%rip),%rdi        # 0xf0cb03e
  26:	48 8b 75 18          	mov    0x18(%rbp),%rsi
* 2a:	67 48 0f b9 3a       	ud1    (%edx),%rdi <-- trapping instruction
  2f:	e9 2a f7 ff ff       	jmp    0xfffff75e
  34:	e8 65 e5 38 00       	call   0x38e59e
  39:	90                   	nop
  3a:	0f 0b                	ud2
  3c:	90                   	nop
  3d:	e9                   	.byte 0xe9
  3e:	b2 f5                	mov    $0xf5,%dl