------------[ cut here ]------------
WARNING: CPU: 0 PID: 4320 at kernel/workqueue.c:1441 __queue_work+0xddc/0xf90
Modules linked in:
CPU: 0 PID: 4320 Comm: syz-executor.1 Not tainted 6.1.87-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024
RIP: 0010:__queue_work+0xddc/0xf90 kernel/workqueue.c:1441
Code: 8b 3c 24 e8 c6 96 88 00 e9 d9 fc ff ff e8 8c 1f 31 00 89 ee 48 c7 c7 00 96 fd 8c e8 9e e4 09 03 e9 1e fc ff ff e8 74 1f 31 00 <0f> 0b 48 83 c4 50 5b 41 5c 41 5d 41 5e 41 5f 5d c3 e8 5e 1f 31 00
RSP: 0018:ffffc90000007af8 EFLAGS: 00010046
RAX: ffffffff81596fec RBX: 00000000000b0012 RCX: ffff88807ca68000
RDX: 0000000000000100 RSI: 0000000000000100 RDI: 0000000000000000
RBP: 0000000000010000 R08: ffffffff815a5d95 R09: fffffbfff1ce6eee
R10: 0000000000000000 R11: dffffc0000000001 R12: dffffc0000000000
R13: dffffc0000000000 R14: 0000000000000008 R15: ffff888077064000
FS:  0000000000000000(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fd80f97efe0 CR3: 000000004f184000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <IRQ>
 call_timer_fn+0x1ad/0x6b0 kernel/time/timer.c:1504
 expire_timers kernel/time/timer.c:1544 [inline]
 __run_timers+0x6a8/0x890 kernel/time/timer.c:1820
 run_timer_softirq+0x63/0xf0 kernel/time/timer.c:1833
 __do_softirq+0x2e9/0xa4c kernel/softirq.c:571
 invoke_softirq kernel/softirq.c:445 [inline]
 __irq_exit_rcu+0x155/0x240 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:1106
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x16/0x20 arch/x86/include/asm/idtentry.h:653
RIP: 0010:lock_acquire+0x26f/0x5a0 kernel/locking/lockdep.c:5666
Code: 2b 00 74 08 4c 89 f7 e8 3f a1 77 00 f6 44 24 61 02 0f 85 84 01 00 00 41 f7 c7 00 02 00 00 74 01 fb 48 c7 44 24 40 0e 36 e0 45 <4b> c7 44 25 00 00 00 00 00 43 c7 44 25 09 00 00 00 00 43 c7 44 25
RSP: 0018:ffffc900030ef760 EFLAGS: 00000206
RAX: 0000000000000001 RBX: 1ffff9200061def8 RCX: ffffffff91c92103
RDX: dffffc0000000000 RSI: ffffffff8aec1340 RDI: ffffffff8b3d4320
RBP: ffffc900030ef8a8 R08: dffffc0000000000 R09: fffffbfff22a7288
R10: 0000000000000000 R11: dffffc0000000001 R12: 1ffff9200061def4
R13: dffffc0000000000 R14: ffffc900030ef7c0 R15: 0000000000000246
 __flush_workqueue+0x170/0x1610 kernel/workqueue.c:2812
 drain_workqueue+0xc5/0x390 kernel/workqueue.c:2977
 hci_dev_close_sync+0x47d/0x1020 net/bluetooth/hci_sync.c:5003
 hci_dev_do_close net/bluetooth/hci_core.c:554 [inline]
 hci_unregister_dev+0x1df/0x4d0 net/bluetooth/hci_core.c:2738
 vhci_release+0x7f/0xd0 drivers/bluetooth/hci_vhci.c:573
 __fput+0x3b7/0x890 fs/file_table.c:320
 task_work_run+0x246/0x300 kernel/task_work.c:179
 exit_task_work include/linux/task_work.h:38 [inline]
 do_exit+0xa73/0x26a0 kernel/exit.c:869
 do_group_exit+0x202/0x2b0 kernel/exit.c:1019
 __do_sys_exit_group kernel/exit.c:1030 [inline]
 __se_sys_exit_group kernel/exit.c:1028 [inline]
 __x64_sys_exit_group+0x3b/0x40 kernel/exit.c:1028
 do_syscall_x64 arch/x86/entry/common.c:51 [inline]
 do_syscall_64+0x3b/0xb0 arch/x86/entry/common.c:81
 entry_SYSCALL_64_after_hwframe+0x68/0xd2
RIP: 0033:0x7fd80f87dea9
Code: Unable to access opcode bytes at 0x7fd80f87de7f.
RSP: 002b:00007ffe44995ae8 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7
RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fd80f87dea9
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000043
RBP: 00007fd80f8dd468 R08: 00007ffe44993887 R09: 0000000000000003
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
R13: 0000000000000003 R14: 00000000ffffffff R15: 00007ffe44995cd0
 </TASK>
----------------
Code disassembly (best guess):
   0:	2b 00                	sub    (%rax),%eax
   2:	74 08                	je     0xc
   4:	4c 89 f7             	mov    %r14,%rdi
   7:	e8 3f a1 77 00       	call   0x77a14b
   c:	f6 44 24 61 02       	testb  $0x2,0x61(%rsp)
  11:	0f 85 84 01 00 00    	jne    0x19b
  17:	41 f7 c7 00 02 00 00 	test   $0x200,%r15d
  1e:	74 01                	je     0x21
  20:	fb                   	sti
  21:	48 c7 44 24 40 0e 36 	movq   $0x45e0360e,0x40(%rsp)
  28:	e0 45
* 2a:	4b c7 44 25 00 00 00 	movq   $0x0,0x0(%r13,%r12,1) <-- trapping instruction
  31:	00 00
  33:	43 c7 44 25 09 00 00 	movl   $0x0,0x9(%r13,%r12,1)
  3a:	00 00
  3c:	43                   	rex.XB
  3d:	c7                   	.byte 0xc7
  3e:	44                   	rex.R
  3f:	25                   	.byte 0x25