------------[ cut here ]------------
WARNING: CPU: 1 PID: 12239 at kernel/workqueue.c:1438 __queue_work+0xd1a/0xd60 kernel/workqueue.c:1438
Modules linked in:
CPU: 1 PID: 12239 Comm: syz-executor.4 Not tainted 6.1.0-rc4-syzkaller-00294-geb037f16f7e8 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022
RIP: 0010:__queue_work+0xd1a/0xd60 kernel/workqueue.c:1438
Code: 00 e9 fb fc ff ff e8 e5 72 31 00 89 de 48 c7 c7 40 09 9d 8c e8 f7 bf 13 03 e9 4b fc ff ff e8 cd 72 31 00 eb 05 e8 c6 72 31 00 <0f> 0b 48 83 c4 58 5b 41 5c 41 5d 41 5e 41 5f 5d c3 e8 b0 72 31 00
RSP: 0018:ffffc900001e0b10 EFLAGS: 00010046
RAX: ffffffff81566d53 RBX: 00000000000b0012 RCX: ffff888043828000
RDX: 0000000000000101 RSI: 0000000000000100 RDI: 0000000000000000
RBP: ffff88807a184b30 R08: ffffffff8156fe3e R09: fffffbfff1c1b6ae
R10: fffffbfff1c1b6ae R11: 1ffffffff1c1b6ad R12: ffff888073cef000
R13: dffffc0000000000 R14: 0000000000000008 R15: ffff888073cef1c0
FS:  0000000000000000(0000) GS:ffff8880b9b00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f5ca1776028 CR3: 000000000c88e000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <IRQ>
 call_timer_fn+0xf5/0x210 kernel/time/timer.c:1474
 expire_timers kernel/time/timer.c:1514 [inline]
 __run_timers+0x7a2/0x980 kernel/time/timer.c:1790
 run_timer_softirq+0x63/0xf0 kernel/time/timer.c:1803
 __do_softirq+0x277/0x738 kernel/softirq.c:571
 __irq_exit_rcu+0xcf/0x150 kernel/softirq.c:650
 irq_exit_rcu+0x5/0x20 kernel/softirq.c:662
 sysvec_apic_timer_interrupt+0x91/0xb0 arch/x86/kernel/apic/apic.c:1107
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x16/0x20 arch/x86/include/asm/idtentry.h:649
RIP: 0010:preempt_schedule_irq+0xde/0x190 kernel/sched/core.c:6815
Code: 14 66 2e 0f 1f 84 00 00 00 00 00 90 48 f7 03 08 00 00 00 74 7b bf 01 00 00 00 e8 8d 62 1f f7 e8 f8 7b 52 f7 fb bf 01 00 00 00 <e8> ad ec ff ff 9c 8f 44 24 20 43 80 7c 3d 00 00 74 08 4c 89 f7 e8
RSP: 0018:ffffc900035ef660 EFLAGS: 00000286
RAX: 68b5c5e45c950300 RBX: 0000000000000000 RCX: ffffffff8167f8ea
RDX: dffffc0000000000 RSI: ffffffff8a8d81c0 RDI: 0000000000000001
RBP: ffffc900035ef720 R08: dffffc0000000000 R09: fffffbfff1fc9032
R10: fffffbfff1fc9032 R11: 1ffffffff1fc9031 R12: 1ffff920006bdecc
R13: 1ffff920006bded0 R14: ffffc900035ef680 R15: dffffc0000000000
 irqentry_exit+0x53/0x80 kernel/entry/common.c:432
 asm_sysvec_reschedule_ipi+0x16/0x20 arch/x86/include/asm/idtentry.h:654
RIP: 0010:lock_acquire+0x1e1/0x3c0 kernel/locking/lockdep.c:5672
Code: 20 00 74 08 4c 89 f7 e8 2d 49 74 00 f6 44 24 41 02 0f 85 6e 01 00 00 41 f7 c7 00 02 00 00 74 01 fb 48 c7 44 24 20 0e 36 e0 45 <4b> c7 04 2c 00 00 00 00 43 c7 44 2c 09 00 00 00 00 43 c7 44 2c 11
RSP: 0018:ffffc900035ef7e0 EFLAGS: 00000206
RAX: 1ffff920006bdf04 RBX: 0000000000000001 RCX: ffff888043828a48
RDX: dffffc0000000000 RSI: ffffffff8a8d9340 RDI: ffffffff8aecf960
RBP: ffffc900035ef908 R08: dffffc0000000000 R09: fffffbfff21dcea1
R10: fffffbfff21dcea1 R11: 1ffffffff21dcea0 R12: dffffc0000000000
R13: 1ffff920006bdf00 R14: ffffc900035ef820 R15: 0000000000000246
 __flush_workqueue+0x178/0x1680 kernel/workqueue.c:2809
 drain_workqueue+0xc3/0x3a0 kernel/workqueue.c:2974
 hci_dev_close_sync+0x446/0xd70 net/bluetooth/hci_sync.c:4809
 hci_dev_do_close net/bluetooth/hci_core.c:554 [inline]
 hci_unregister_dev+0x1b7/0x460 net/bluetooth/hci_core.c:2702
 vhci_release+0x7f/0xd0 drivers/bluetooth/hci_vhci.c:568
 __fput+0x3ba/0x880 fs/file_table.c:320
 task_work_run+0x243/0x300 kernel/task_work.c:179
 exit_task_work include/linux/task_work.h:38 [inline]
 do_exit+0x664/0x2070 kernel/exit.c:820
 do_group_exit+0x1fd/0x2b0 kernel/exit.c:950
 __do_sys_exit_group kernel/exit.c:961 [inline]
 __se_sys_exit_group kernel/exit.c:959 [inline]
 __x64_sys_exit_group+0x3b/0x40 kernel/exit.c:959
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x3d/0xb0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7f4a3f08b639
Code: Unable to access opcode bytes at 0x7f4a3f08b60f.
RSP: 002b:00007ffe25408eb8 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7
RAX: ffffffffffffffda RBX: 0000000000000064 RCX: 00007f4a3f08b639
RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000000
RBP: 00007f4a3f0e5af8 R08: 000000000000000c R09: 000055555688e3b8
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000016
R13: 00007ffe2540a190 R14: 000055555688e3b8 R15: 00007ffe2540b290
 </TASK>
----------------
Code disassembly (best guess):
   0:	14 66                	adc    $0x66,%al
   2:	2e 0f 1f 84 00 00 00 	nopl   %cs:0x0(%rax,%rax,1)
   9:	00 00
   b:	90                   	nop
   c:	48 f7 03 08 00 00 00 	testq  $0x8,(%rbx)
  13:	74 7b                	je     0x90
  15:	bf 01 00 00 00       	mov    $0x1,%edi
  1a:	e8 8d 62 1f f7       	callq  0xf71f62ac
  1f:	e8 f8 7b 52 f7       	callq  0xf7527c1c
  24:	fb                   	sti
  25:	bf 01 00 00 00       	mov    $0x1,%edi
* 2a:	e8 ad ec ff ff       	callq  0xffffecdc <-- trapping instruction
  2f:	9c                   	pushfq
  30:	8f 44 24 20          	popq   0x20(%rsp)
  34:	43 80 7c 3d 00 00    	cmpb   $0x0,0x0(%r13,%r15,1)
  3a:	74 08                	je     0x44
  3c:	4c 89 f7             	mov    %r14,%rdi
  3f:	e8                   	.byte 0xe8