------------[ cut here ]------------
workqueue: cannot queue hci_cmd_timeout on wq hci0
WARNING: kernel/workqueue.c:2252 at 0x0, CPU#0: udevd/5307
Modules linked in:
CPU: 0 UID: 0 PID: 5307 Comm: udevd 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+0xd4b/0xf90 kernel/workqueue.c:2250
Code: 83 c5 18 4c 89 e8 48 c1 e8 03 42 80 3c 20 00 74 08 4c 89 ef e8 26 78 9e 00 49 8b 75 00 49 81 c7 78 01 00 00 4c 89 f7 4c 89 fa <67> 48 0f b9 3a 48 83 c4 58 5b 41 5c 41 5d 41 5e 41 5f 5d c3 cc cc
RSP: 0018:ffffc90000007b10 EFLAGS: 00010086
RAX: 1ffff1100381d151 RBX: 0000000000000008 RCX: ffff888000b924c0
RDX: ffff88803ff67978 RSI: ffffffff8a475b90 RDI: ffffffff8f8371d0
RBP: 0000000000000100 R08: ffffffff8f808b77 R09: 1ffffffff1f0116e
R10: dffffc0000000000 R11: ffffffff818a6b40 R12: dffffc0000000000
R13: ffff88801c0e8a88 R14: ffffffff8f8371d0 R15: ffff88803ff67978
FS:  00007f695ae3a880(0000) GS:ffff88808d69f000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f695a7909c0 CR3: 000000004525d000 CR4: 0000000000352ef0
Call Trace:
 <IRQ>
 call_timer_fn+0x16e/0x590 kernel/time/timer.c:1748
 expire_timers kernel/time/timer.c:1794 [inline]
 __run_timers kernel/time/timer.c:2373 [inline]
 __run_timer_base+0x646/0x860 kernel/time/timer.c:2385
 run_timer_base kernel/time/timer.c:2394 [inline]
 run_timer_softirq+0xb7/0x180 kernel/time/timer.c:2404
 handle_softirqs+0x27d/0x850 kernel/softirq.c:622
 __do_softirq kernel/softirq.c:656 [inline]
 invoke_softirq kernel/softirq.c:496 [inline]
 __irq_exit_rcu+0xca/0x1f0 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+0xa6/0xc0 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:arch_try_cmpxchg128 arch/x86/include/asm/cmpxchg_64.h:83 [inline]
RIP: 0010:__update_freelist_fast mm/slub.c:767 [inline]
RIP: 0010:slab_update_freelist+0x61/0x100 mm/slub.c:832
Code: 00 00 75 36 48 89 f7 4c 89 f6 48 89 ca e8 e7 fe ff ff 89 c3 eb 44 48 8b 19 48 8b 49 08 49 8b 06 49 8b 56 08 3e 48 0f c7 4e 20 <48> 89 c1 b0 01 74 4e 49 89 0e 49 89 56 08 eb 65 48 89 f3 49 89 cf
RSP: 0018:ffffc9000d38fb08 EFLAGS: 00000242
RAX: ffff888011d1ed38 RBX: ffff888011d1eeb0 RCX: 000000000015000b
RDX: 000000000015000c RSI: ffffea0000474780 RDI: ffff88801b2e1780
RBP: ffffc9000d38fbb8 R08: 0000000000000001 R09: ffffffff8228ef5c
R10: dffffc0000000000 R11: fffffbfff1f0116f R12: 0000000000000000
R13: ffff888011d1eeb0 R14: ffffc9000d38fb70 R15: 000000000015000c
 __slab_free+0x104/0x2a0 mm/slub.c:5932
 qlink_free mm/kasan/quarantine.c:163 [inline]
 qlist_free_all+0x97/0x100 mm/kasan/quarantine.c:179
 kasan_quarantine_reduce+0x148/0x160 mm/kasan/quarantine.c:286
 __kasan_slab_alloc+0x22/0x80 mm/kasan/common.c:352
 kasan_slab_alloc include/linux/kasan.h:252 [inline]
 slab_post_alloc_hook mm/slub.c:4948 [inline]
 slab_alloc_node mm/slub.c:5258 [inline]
 kmem_cache_alloc_noprof+0x367/0x6f0 mm/slub.c:5265
 getname_flags+0xb8/0x540 fs/namei.c:146
 getname include/linux/fs.h:2499 [inline]
 getname_maybe_null include/linux/fs.h:2506 [inline]
 vfs_fstatat+0x43/0x170 fs/stat.c:370
 __do_sys_newfstatat fs/stat.c:542 [inline]
 __se_sys_newfstatat fs/stat.c:536 [inline]
 __x64_sys_newfstatat+0x116/0x190 fs/stat.c:536
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0xfa/0xf80 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f695a711b0a
Code: 48 8b 15 f1 f2 0d 00 f7 d8 64 89 02 b8 ff ff ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 41 89 ca b8 06 01 00 00 0f 05 <3d> 00 f0 ff ff 77 07 31 c0 c3 0f 1f 40 00 48 8b 15 b9 f2 0d 00 f7
RSP: 002b:00007ffeaa41aae8 EFLAGS: 00000246 ORIG_RAX: 0000000000000106
RAX: ffffffffffffffda RBX: 000000000000000e RCX: 00007f695a711b0a
RDX: 00007ffeaa41aaf0 RSI: 00007ffeaa41abc0 RDI: 00000000ffffff9c
RBP: 00007ffeaa41bc00 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffeaa41c020
R13: 0000000000000000 R14: 0000000000000008 R15: 000055c4d78d4250
 </TASK>
----------------
Code disassembly (best guess):
   0:	83 c5 18             	add    $0x18,%ebp
   3:	4c 89 e8             	mov    %r13,%rax
   6:	48 c1 e8 03          	shr    $0x3,%rax
   a:	42 80 3c 20 00       	cmpb   $0x0,(%rax,%r12,1)
   f:	74 08                	je     0x19
  11:	4c 89 ef             	mov    %r13,%rdi
  14:	e8 26 78 9e 00       	call   0x9e783f
  19:	49 8b 75 00          	mov    0x0(%r13),%rsi
  1d:	49 81 c7 78 01 00 00 	add    $0x178,%r15
  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:	48 83 c4 58          	add    $0x58,%rsp
  33:	5b                   	pop    %rbx
  34:	41 5c                	pop    %r12
  36:	41 5d                	pop    %r13
  38:	41 5e                	pop    %r14
  3a:	41 5f                	pop    %r15
  3c:	5d                   	pop    %rbp
  3d:	c3                   	ret
  3e:	cc                   	int3
  3f:	cc                   	int3