------------[ cut here ]------------
WARNING: CPU: 0 PID: 6794 at kernel/workqueue.c:1438 __queue_work+0xf70/0x13b0 kernel/workqueue.c:1438
Modules linked in:
CPU: 0 PID: 6794 Comm: syz-executor.4 Not tainted 6.1.0-rc5-next-20221116-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022
RIP: 0010:__queue_work+0xf70/0x13b0 kernel/workqueue.c:1438
Code: e0 07 83 c0 03 38 d0 7c 09 84 d2 74 05 e8 f8 4a 7c 00 8b 5b 2c 31 ff 83 e3 20 89 de e8 c9 a3 2e 00 85 db 75 42 e8 10 a7 2e 00 <0f> 0b e9 7e f7 ff ff e8 04 a7 2e 00 0f 0b e9 10 f7 ff ff e8 f8 a6
RSP: 0018:ffffc90000007c98 EFLAGS: 00010046
RAX: 0000000000000000 RBX: 0000000000000100 RCX: 0000000000000100
RDX: ffff888021000000 RSI: ffffffff8151fdd0 RDI: 0000000000000005
RBP: ffffc90000007d60 R08: 0000000000000005 R09: 0000000000000000
R10: 0000000000000100 R11: 0000000000000001 R12: ffff88807e7b2250
R13: ffff88807e7b2298 R14: 0000000000000000 R15: ffff8880209db000
FS:  0000000000000000(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f5304bde6b8 CR3: 0000000026185000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <IRQ>
 call_timer_fn+0x1da/0x7c0 kernel/time/timer.c:1474
 expire_timers kernel/time/timer.c:1514 [inline]
 __run_timers.part.0+0x4a3/0xaf0 kernel/time/timer.c:1790
 __run_timers kernel/time/timer.c:1768 [inline]
 run_timer_softirq+0xb7/0x1d0 kernel/time/timer.c:1803
 __do_softirq+0x1fb/0xadc kernel/softirq.c:571
 invoke_softirq kernel/softirq.c:445 [inline]
 __irq_exit_rcu+0x123/0x180 kernel/softirq.c:650
 irq_exit_rcu+0x9/0x20 kernel/softirq.c:662
 sysvec_apic_timer_interrupt+0x97/0xc0 arch/x86/kernel/apic/apic.c:1107
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:649
RIP: 0010:preempt_schedule_irq+0x4d/0xa0 kernel/sched/core.c:6853
Code: 55 53 65 48 8b 1c 25 c0 a9 03 00 48 89 dd 48 c1 ed 03 48 01 c5 bf 01 00 00 00 e8 8e e9 4b f7 e8 a9 b9 7c f7 fb bf 01 00 00 00 <e8> de 9e ff ff 9c 58 fa f6 c4 02 75 27 bf 01 00 00 00 e8 5c d4 4b
RSP: 0018:ffffc9000b6bf838 EFLAGS: 00000206
RAX: 0000000000000bf3 RBX: ffff888021000000 RCX: 1ffffffff2272cd6
RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000001
RBP: ffffed1004200000 R08: 0000000000000001 R09: ffffffff91346b17
R10: 0000000000000001 R11: 0000000000000000 R12: 0000000000000000
R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000
 irqentry_exit+0x35/0x80 kernel/entry/common.c:432
 asm_sysvec_reschedule_ipi+0x1a/0x20 arch/x86/include/asm/idtentry.h:654
RIP: 0010:lock_acquire+0x227/0x630 kernel/locking/lockdep.c:5636
Code: 07 9f 7e 83 f8 01 0f 85 3a 03 00 00 9c 58 f6 c4 02 0f 85 25 03 00 00 48 83 7c 24 08 00 74 01 fb 48 b8 00 00 00 00 00 fc ff df <48> 01 c3 48 c7 03 00 00 00 00 48 c7 43 08 00 00 00 00 48 8b 84 24
RSP: 0018:ffffc9000b6bf900 EFLAGS: 00000206
RAX: dffffc0000000000 RBX: 1ffff920016d7f23 RCX: 0000000000000001
RDX: 1ffff11004200146 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 0000000000000001 R08: 0000000000000001 R09: ffffffff914cfa57
R10: fffffbfff2299f4a R11: 1ffffffff21581e2 R12: 0000000000000000
R13: 0000000000000000 R14: ffff8880209db138 R15: 0000000000000000
 __flush_workqueue+0x118/0x13a0 kernel/workqueue.c:2809
 drain_workqueue+0x1a9/0x3c0 kernel/workqueue.c:2974
 hci_dev_close_sync+0x2f3/0x1200 net/bluetooth/hci_sync.c:4833
 hci_dev_do_close+0x31/0x70 net/bluetooth/hci_core.c:554
 hci_unregister_dev+0x183/0x4e0 net/bluetooth/hci_core.c:2702
 vhci_release+0x80/0xf0 drivers/bluetooth/hci_vhci.c:568
 __fput+0x27c/0xa90 fs/file_table.c:320
 task_work_run+0x16f/0x270 kernel/task_work.c:179
 exit_task_work include/linux/task_work.h:38 [inline]
 do_exit+0xaa8/0x28d0 kernel/exit.c:820
 __do_sys_exit kernel/exit.c:917 [inline]
 __se_sys_exit kernel/exit.c:915 [inline]
 __x64_sys_exit+0x42/0x50 kernel/exit.c:915
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x39/0xb0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7f015148c189
Code: Unable to access opcode bytes at 0x7f015148c15f.
RSP: 002b:00007f01521de118 EFLAGS: 00000246 ORIG_RAX: 000000000000003c
RAX: ffffffffffffffda RBX: 00007f01515ac120 RCX: 00007f015148c189
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 00007f01514e7b01 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffee7890c4f R14: 00007f01521de300 R15: 0000000000022000
 </TASK>
----------------
Code disassembly (best guess):
   0:	55                   	push   %rbp
   1:	53                   	push   %rbx
   2:	65 48 8b 1c 25 c0 a9 	mov    %gs:0x3a9c0,%rbx
   9:	03 00
   b:	48 89 dd             	mov    %rbx,%rbp
   e:	48 c1 ed 03          	shr    $0x3,%rbp
  12:	48 01 c5             	add    %rax,%rbp
  15:	bf 01 00 00 00       	mov    $0x1,%edi
  1a:	e8 8e e9 4b f7       	callq  0xf74be9ad
  1f:	e8 a9 b9 7c f7       	callq  0xf77cb9cd
  24:	fb                   	sti
  25:	bf 01 00 00 00       	mov    $0x1,%edi
* 2a:	e8 de 9e ff ff       	callq  0xffff9f0d <-- trapping instruction
  2f:	9c                   	pushfq
  30:	58                   	pop    %rax
  31:	fa                   	cli
  32:	f6 c4 02             	test   $0x2,%ah
  35:	75 27                	jne    0x5e
  37:	bf 01 00 00 00       	mov    $0x1,%edi
  3c:	e8                   	.byte 0xe8
  3d:	5c                   	pop    %rsp
  3e:	d4                   	(bad)
  3f:	4b                   	rex.WXB