------------[ cut here ]------------
WARNING: CPU: 1 PID: 14660 at kernel/workqueue.c:2257 __queue_work+0xcd3/0xf50 kernel/workqueue.c:2256
Modules linked in:
CPU: 1 UID: 0 PID: 14660 Comm: syz-executor Not tainted 6.14.0-rc3-syzkaller-g6ccf6adb05d0 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025
RIP: 0010:__queue_work+0xcd3/0xf50 kernel/workqueue.c:2256
Code: ff e8 e1 af 38 00 90 0f 0b 90 e9 b2 fe ff ff e8 d3 af 38 00 eb 13 e8 cc af 38 00 eb 0c e8 c5 af 38 00 eb 05 e8 be af 38 00 90 <0f> 0b 90 48 83 c4 60 5b 41 5c 41 5d 41 5e 41 5f 5d c3 cc cc cc cc
RSP: 0018:ffffc90000a18b08 EFLAGS: 00010046
RAX: ffffffff81890abd RBX: 0000000000000100 RCX: ffff888025668000
RDX: 0000000000000100 RSI: 0000000000000100 RDI: 0000000000000000
RBP: 0000000000010000 R08: ffffffff8188fee8 R09: 1ffffffff2079d2e
R10: dffffc0000000000 R11: ffffffff818912f0 R12: ffff88807eb88000
R13: ffff88807eb881c0 R14: dffffc0000000000 R15: 0000000000000008
FS:  0000000000000000(0000) GS:ffff8880b8700000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000c003877000 CR3: 00000000292e2000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <IRQ>
 call_timer_fn+0x187/0x650 kernel/time/timer.c:1789
 expire_timers kernel/time/timer.c:1835 [inline]
 __run_timers kernel/time/timer.c:2414 [inline]
 __run_timer_base+0x695/0x8e0 kernel/time/timer.c:2426
 run_timer_base kernel/time/timer.c:2435 [inline]
 run_timer_softirq+0xb7/0x170 kernel/time/timer.c:2445
 handle_softirqs+0x2d4/0x9b0 kernel/softirq.c:561
 __do_softirq kernel/softirq.c:595 [inline]
 invoke_softirq kernel/softirq.c:435 [inline]
 __irq_exit_rcu+0xf7/0x220 kernel/softirq.c:662
 irq_exit_rcu+0x9/0x30 kernel/softirq.c:678
 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1049 [inline]
 sysvec_apic_timer_interrupt+0xa6/0xc0 arch/x86/kernel/apic/apic.c:1049
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702
RIP: 0010:preempt_schedule_irq+0xf6/0x1c0 kernel/sched/core.c:7087
Code: 89 f5 49 c1 ed 03 eb 0d 48 f7 03 08 00 00 00 0f 84 8b 00 00 00 bf 01 00 00 00 e8 95 ed 85 f5 e8 f0 14 c0 f5 fb bf 01 00 00 00 <e8> 25 ab ff ff 43 80 7c 3d 00 00 74 08 4c 89 f7 e8 a5 82 1f f6 48
RSP: 0018:ffffc9000db6f520 EFLAGS: 00000282
RAX: 00c80a70fbdd9300 RBX: 1ffff92001b6deac RCX: ffffffff819d265a
RDX: dffffc0000000000 RSI: ffffffff8c2aa440 RDI: 0000000000000001
RBP: ffffc9000db6f5e0 R08: ffffffff94547977 R09: 1ffffffff28a8f2e
R10: dffffc0000000000 R11: fffffbfff28a8f2f R12: 1ffff92001b6dea4
R13: 1ffff92001b6dea8 R14: ffffc9000db6f540 R15: dffffc0000000000
 irqentry_exit+0x5e/0x90 kernel/entry/common.c:354
 asm_sysvec_reschedule_ipi+0x1a/0x20 arch/x86/include/asm/idtentry.h:707
RIP: 0010:lock_acquire+0x264/0x550 kernel/locking/lockdep.c:5855
Code: 2b 00 74 08 4c 89 f7 e8 3a 45 8c 00 f6 44 24 61 02 0f 85 85 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:ffffc9000db6f6a0 EFLAGS: 00000206
RAX: 0000000000000001 RBX: 1ffff92001b6dee0 RCX: ffff888025668ae8
RDX: dffffc0000000000 RSI: ffffffff8c2ab6a0 RDI: ffffffff8c80ee80
RBP: ffffc9000db6f7f0 R08: ffffffff96de692f R09: 1ffffffff2dbcd25
R10: dffffc0000000000 R11: fffffbfff2dbcd26 R12: 1ffff92001b6dedc
R13: dffffc0000000000 R14: ffffc9000db6f700 R15: 0000000000000246
 touch_wq_lockdep_map+0xc7/0x170 kernel/workqueue.c:3905
 __flush_workqueue+0x14a/0x1280 kernel/workqueue.c:3947
 drain_workqueue+0xc9/0x3a0 kernel/workqueue.c:4111
 hci_dev_close_sync+0x5fd/0x1260 net/bluetooth/hci_sync.c:5183
 hci_dev_do_close net/bluetooth/hci_core.c:482 [inline]
 hci_unregister_dev+0x20b/0x510 net/bluetooth/hci_core.c:2677
 vhci_release+0x80/0xd0 drivers/bluetooth/hci_vhci.c:664
 __fput+0x3e9/0x9f0 fs/file_table.c:464
 task_work_run+0x24f/0x310 kernel/task_work.c:227
 exit_task_work include/linux/task_work.h:40 [inline]
 do_exit+0xa2a/0x28e0 kernel/exit.c:938
 do_group_exit+0x207/0x2c0 kernel/exit.c:1087
 __do_sys_exit_group kernel/exit.c:1098 [inline]
 __se_sys_exit_group kernel/exit.c:1096 [inline]
 __x64_sys_exit_group+0x3f/0x40 kernel/exit.c:1096
 x64_sys_call+0x26a8/0x26b0 arch/x86/include/generated/asm/syscalls_64.h:232
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f9bda98d169
Code: Unable to access opcode bytes at 0x7f9bda98d13f.
RSP: 002b:00007ffcbc87d238 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7
RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007f9bda98d169
RDX: 00007f9bda98effc RSI: 0000000000000000 RDI: 0000000000000007
RBP: 0000000000000000 R08: 000000000000000c R09: 0000000000000007
R10: 00007ffcbc87d884 R11: 0000000000000246 R12: 0000000000000003
R13: 0000000000000000 R14: 00007f9bdb6d4670 R15: 0000000000000000
 </TASK>
----------------
Code disassembly (best guess):
   0:	89 f5                	mov    %esi,%ebp
   2:	49 c1 ed 03          	shr    $0x3,%r13
   6:	eb 0d                	jmp    0x15
   8:	48 f7 03 08 00 00 00 	testq  $0x8,(%rbx)
   f:	0f 84 8b 00 00 00    	je     0xa0
  15:	bf 01 00 00 00       	mov    $0x1,%edi
  1a:	e8 95 ed 85 f5       	call   0xf585edb4
  1f:	e8 f0 14 c0 f5       	call   0xf5c01514
  24:	fb                   	sti
  25:	bf 01 00 00 00       	mov    $0x1,%edi
* 2a:	e8 25 ab ff ff       	call   0xffffab54 <-- trapping instruction
  2f:	43 80 7c 3d 00 00    	cmpb   $0x0,0x0(%r13,%r15,1)
  35:	74 08                	je     0x3f
  37:	4c 89 f7             	mov    %r14,%rdi
  3a:	e8 a5 82 1f f6       	call   0xf61f82e4
  3f:	48                   	rex.W