------------[ cut here ]------------
WARNING: CPU: 1 PID: 5475 at kernel/workqueue.c:1725 __queue_work+0xcad/0x11f0 kernel/workqueue.c:1724
Modules linked in:
CPU: 1 PID: 5475 Comm: syz-executor.0 Not tainted 6.7.0-rc4-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/10/2023
RIP: 0010:__queue_work+0xcad/0x11f0 kernel/workqueue.c:1724
Code: 38 d0 7c 09 84 d2 74 05 e8 b0 6c 88 00 8b 5b 2c 31 ff 83 e3 20 89 de e8 c1 c1 31 00 85 db 0f 85 93 01 00 00 e8 44 c6 31 00 90 <0f> 0b 90 e9 c5 f9 ff ff e8 36 c6 31 00 90 0f 0b 90 e9 74 f9 ff ff
RSP: 0018:ffffc900001f0c28 EFLAGS: 00010046
RAX: 0000000000000000 RBX: 0000000000000100 RCX: ffffffff8155c39f
RDX: ffff888024ebbb80 RSI: ffffffff8155c3fc RDI: 0000000000000005
RBP: ffff888021210c58 R08: 0000000000000005 R09: 0000000000000000
R10: 0000000000000100 R11: 0000000000000002 R12: ffff888021210c10
R13: 0000000000000100 R14: ffffffff8155ce90 R15: ffff888029c5d000
FS:  0000000000000000(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000
CS:  0010 DS: 002b ES: 002b CR0: 0000000080050033
CR2: 00000000f737b044 CR3: 000000000cd77000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <IRQ>
 call_timer_fn+0x193/0x590 kernel/time/timer.c:1700
 expire_timers kernel/time/timer.c:1746 [inline]
 __run_timers+0x585/0xb20 kernel/time/timer.c:2022
 run_timer_softirq+0x58/0xd0 kernel/time/timer.c:2035
 __do_softirq+0x21a/0x8de kernel/softirq.c:553
 invoke_softirq kernel/softirq.c:427 [inline]
 __irq_exit_rcu kernel/softirq.c:632 [inline]
 irq_exit_rcu+0xb7/0x120 kernel/softirq.c:644
 sysvec_apic_timer_interrupt+0x95/0xb0 arch/x86/kernel/apic/apic.c:1076
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:645
RIP: 0010:lock_acquire+0x1ef/0x520 kernel/locking/lockdep.c:5722
Code: c1 05 bd 6c 9a 7e 83 f8 01 0f 85 b4 02 00 00 9c 58 f6 c4 02 0f 85 9f 02 00 00 48 85 ed 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:ffffc90004a578c0 EFLAGS: 00000206
RAX: dffffc0000000000 RBX: 1ffff9200094af1a RCX: 0000000000000001
RDX: 0000000000000001 RSI: ffffffff8accba40 RDI: ffffffff8b2f0c60
RBP: 0000000000000200 R08: 00000000000f8988 R09: fffffbfff2418790
R10: ffffffff920c3c87 R11: 1ffffffff22eb79e R12: 0000000000000001
R13: 0000000000000000 R14: ffff888029c5d138 R15: 0000000000000000
 __flush_workqueue+0x14b/0x1340 kernel/workqueue.c:3143
 drain_workqueue+0x18f/0x3d0 kernel/workqueue.c:3308
 hci_dev_close_sync+0x332/0x1160 net/bluetooth/hci_sync.c:5006
 hci_dev_do_close+0x2e/0x90 net/bluetooth/hci_core.c:554
 hci_unregister_dev+0x1eb/0x600 net/bluetooth/hci_core.c:2739
 vhci_release+0x7f/0x100 drivers/bluetooth/hci_vhci.c:672
 __fput+0x270/0xbb0 fs/file_table.c:394
 task_work_run+0x14d/0x240 kernel/task_work.c:180
 exit_task_work include/linux/task_work.h:38 [inline]
 do_exit+0xa92/0x2ae0 kernel/exit.c:871
 do_group_exit+0xd4/0x2a0 kernel/exit.c:1021
 __do_sys_exit_group kernel/exit.c:1032 [inline]
 __se_sys_exit_group kernel/exit.c:1030 [inline]
 __ia32_sys_exit_group+0x3e/0x50 kernel/exit.c:1030
 do_syscall_32_irqs_on arch/x86/entry/common.c:164 [inline]
 __do_fast_syscall_32+0x62/0xe0 arch/x86/entry/common.c:230
 do_fast_syscall_32+0x33/0x70 arch/x86/entry/common.c:255
 entry_SYSENTER_compat_after_hwframe+0x70/0x7a
RIP: 0023:0xf7fa3579
Code: Unable to access opcode bytes at 0xf7fa354f.
RSP: 002b:00000000ff9c729c EFLAGS: 00000282 ORIG_RAX: 00000000000000fc
RAX: ffffffffffffffda RBX: 0000000000000043 RCX: 00000000ff9c72e8
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000f7242e86
RBP: 00000000f7353ff4 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000000
R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000
 </TASK>
----------------
Code disassembly (best guess):
   0:	c1 05 bd 6c 9a 7e 83 	roll   $0x83,0x7e9a6cbd(%rip)        # 0x7e9a6cc4
   7:	f8                   	clc
   8:	01 0f                	add    %ecx,(%rdi)
   a:	85 b4 02 00 00 9c 58 	test   %esi,0x589c0000(%rdx,%rax,1)
  11:	f6 c4 02             	test   $0x2,%ah
  14:	0f 85 9f 02 00 00    	jne    0x2b9
  1a:	48 85 ed             	test   %rbp,%rbp
  1d:	74 01                	je     0x20
  1f:	fb                   	sti
  20:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  27:	fc ff df
* 2a:	48 01 c3             	add    %rax,%rbx <-- trapping instruction
  2d:	48 c7 03 00 00 00 00 	movq   $0x0,(%rbx)
  34:	48 c7 43 08 00 00 00 	movq   $0x0,0x8(%rbx)
  3b:	00
  3c:	48                   	rex.W
  3d:	8b                   	.byte 0x8b
  3e:	84                   	.byte 0x84
  3f:	24                   	.byte 0x24