------------[ cut here ]------------
workqueue: cannot queue hci_cmd_timeout on wq hci0
WARNING: CPU: 1 PID: 10448 at kernel/workqueue.c:2255 __queue_work+0xd03/0x1160 kernel/workqueue.c:2254
Modules linked in:
CPU: 1 UID: 0 PID: 10448 Comm: dhcpcd-run-hook 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+0xd03/0x1160 kernel/workqueue.c:2254
Code: 00 00 fc ff df 48 89 fa 48 c1 ea 03 80 3c 02 00 0f 85 4b 04 00 00 48 8b 75 18 4c 89 fa 48 c7 c7 a0 03 ac 8b e8 be 1e f7 ff 90 <0f> 0b 90 90 e9 2f f7 ff ff e8 ff 79 38 00 90 0f 0b 90 e9 b4 f5 ff
RSP: 0018:ffffc900006a0be8 EFLAGS: 00010082
RAX: 0000000000000000 RBX: 0000000000000000 RCX: ffffffff817a4388
RDX: ffff88802c28a440 RSI: ffffffff817a4395 RDI: 0000000000000001
RBP: ffff88802b614970 R08: 0000000000000001 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: 1ffff920000d418f
R13: 0000000080000100 R14: ffffffff81833490 R15: ffff8880580d7178
FS:  0000000000000000(0000) GS:ffff8880d67b2000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f44a2502eb8 CR3: 0000000065790000 CR4: 0000000000352ef0
Call Trace:
 <IRQ>
 call_timer_fn+0x197/0x620 kernel/time/timer.c:1747
 expire_timers kernel/time/timer.c:1793 [inline]
 __run_timers+0x569/0x960 kernel/time/timer.c:2372
 __run_timer_base kernel/time/timer.c:2384 [inline]
 __run_timer_base kernel/time/timer.c:2376 [inline]
 run_timer_base+0x114/0x190 kernel/time/timer.c:2393
 run_timer_softirq+0x1a/0x40 kernel/time/timer.c:2403
 handle_softirqs+0x219/0x8e0 kernel/softirq.c:579
 __do_softirq kernel/softirq.c:613 [inline]
 invoke_softirq kernel/softirq.c:453 [inline]
 __irq_exit_rcu+0x109/0x170 kernel/softirq.c:680
 irq_exit_rcu+0x9/0x30 kernel/softirq.c:696
 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1050 [inline]
 sysvec_apic_timer_interrupt+0xa4/0xc0 arch/x86/kernel/apic/apic.c:1050
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702
RIP: 0010:get_current arch/x86/include/asm/current.h:25 [inline]
RIP: 0010:__sanitizer_cov_trace_pc+0x8/0x70 kernel/kcov.c:216
Code: e9 7d 56 5b 00 be 03 00 00 00 5b e9 92 53 28 03 66 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa 48 8b 34 24 <65> 48 8b 15 c8 42 1b 12 65 8b 05 d9 42 1b 12 a9 00 01 ff 00 74 1d
RSP: 0018:ffffc900047bf6a8 EFLAGS: 00000246
RAX: dffffc0000000000 RBX: ffffc900047bf738 RCX: ffffffff8211cbe2
RDX: 1ffff11006bb0c2a RSI: ffffffff820b9613 RDI: ffffc900047bf738
RBP: ffff8880466e5600 R08: 0000000000000001 R09: fffffbfff36631b8
R10: 0000000000000003 R11: 0000000000000000 R12: 1ffff920008f7ee3
R13: ffffc900047bf738 R14: ffff888035d86140 R15: ffffc900047bfacd
 __tlb_gather_mmu mm/mmu_gather.c:410 [inline]
 tlb_gather_mmu+0x13/0x380 mm/mmu_gather.c:443
 vms_clear_ptes+0x244/0x770 mm/vma.c:1226
 vms_clean_up_area mm/vma.c:1247 [inline]
 __mmap_prepare mm/vma.c:2396 [inline]
 __mmap_region+0x5e1/0x27b0 mm/vma.c:2651
 mmap_region+0x1ab/0x3f0 mm/vma.c:2739
 do_mmap+0xa3e/0x1210 mm/mmap.c:558
 vm_mmap_pgoff+0x29e/0x470 mm/util.c:580
 ksys_mmap_pgoff+0x32c/0x5c0 mm/mmap.c:604
 __do_sys_mmap arch/x86/kernel/sys_x86_64.c:89 [inline]
 __se_sys_mmap arch/x86/kernel/sys_x86_64.c:82 [inline]
 __x64_sys_mmap+0x125/0x190 arch/x86/kernel/sys_x86_64.c:82
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0xcd/0x4e0 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f44a27ed242
Code: 08 00 04 00 00 eb e2 90 41 f7 c1 ff 0f 00 00 75 27 55 89 cd 53 48 89 fb 48 85 ff 74 33 41 89 ea 48 89 df b8 09 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 5e 5b 5d c3 0f 1f 00 c7 05 46 40 01 00 16 00
RSP: 002b:00007fff8519fa08 EFLAGS: 00000206 ORIG_RAX: 0000000000000009
RAX: ffffffffffffffda RBX: 00007f44a24ce000 RCX: 00007f44a27ed242
RDX: 0000000000000005 RSI: 000000000001c000 RDI: 00007f44a24ce000
RBP: 0000000000000812 R08: 0000000000000003 R09: 0000000000008000
R10: 0000000000000812 R11: 0000000000000206 R12: 00007fff8519fa58
R13: 00007f44a27c2ab0 R14: 00007fff8519fe80 R15: 00000ffff0a33f44
 </TASK>
----------------
Code disassembly (best guess):
   0:	e9 7d 56 5b 00       	jmp    0x5b5682
   5:	be 03 00 00 00       	mov    $0x3,%esi
   a:	5b                   	pop    %rbx
   b:	e9 92 53 28 03       	jmp    0x32853a2
  10:	66 90                	xchg   %ax,%ax
  12:	90                   	nop
  13:	90                   	nop
  14:	90                   	nop
  15:	90                   	nop
  16:	90                   	nop
  17:	90                   	nop
  18:	90                   	nop
  19:	90                   	nop
  1a:	90                   	nop
  1b:	90                   	nop
  1c:	90                   	nop
  1d:	90                   	nop
  1e:	90                   	nop
  1f:	90                   	nop
  20:	90                   	nop
  21:	90                   	nop
  22:	f3 0f 1e fa          	endbr64
  26:	48 8b 34 24          	mov    (%rsp),%rsi
* 2a:	65 48 8b 15 c8 42 1b 	mov    %gs:0x121b42c8(%rip),%rdx        # 0x121b42fa <-- trapping instruction
  31:	12
  32:	65 8b 05 d9 42 1b 12 	mov    %gs:0x121b42d9(%rip),%eax        # 0x121b4312
  39:	a9 00 01 ff 00       	test   $0xff0100,%eax
  3e:	74 1d                	je     0x5d