------------[ cut here ]------------
workqueue: cannot queue hci_conn_timeout on wq hci1
WARNING: CPU: 1 PID: 13165 at kernel/workqueue.c:2258 __queue_work+0xd62/0xfe0 kernel/workqueue.c:2256
Modules linked in:
CPU: 1 UID: 0 PID: 13165 Comm: syz-executor Not tainted 6.15.0-rc4-syzkaller-gb4432656b36e #0 PREEMPT(full) 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025
RIP: 0010:__queue_work+0xd62/0xfe0 kernel/workqueue.c:2256
Code: 42 80 3c 20 00 74 08 4c 89 ef e8 e9 d7 96 00 49 8b 75 00 49 81 c7 78 01 00 00 48 c7 c7 e0 c7 69 8b 4c 89 fa e8 9f 40 f9 ff 90 <0f> 0b 90 90 e9 f1 f4 ff ff e8 c0 e2 34 00 90 0f 0b 90 e9 dd fc ff
RSP: 0018:ffffc90000a08b08 EFLAGS: 00010046
RAX: 91f251b4ff0d9b00 RBX: 0000000000000100 RCX: ffff88802f49da00
RDX: 0000000000000100 RSI: 0000000000000000 RDI: 0000000000000002
RBP: 1ffff1100bbf7538 R08: 0000000000000003 R09: 0000000000000004
R10: dffffc0000000000 R11: fffffbfff1bba4b4 R12: dffffc0000000000
R13: ffff888023b58960 R14: 0000000000000008 R15: ffff88805dfba978
FS:  0000000000000000(0000) GS:ffff8881261cc000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000055558d20f588 CR3: 000000002642a000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <IRQ>
 call_timer_fn+0x17b/0x5f0 kernel/time/timer.c:1789
 expire_timers kernel/time/timer.c:1835 [inline]
 __run_timers kernel/time/timer.c:2414 [inline]
 __run_timer_base+0x646/0x860 kernel/time/timer.c:2426
 run_timer_base kernel/time/timer.c:2435 [inline]
 run_timer_softirq+0xb7/0x180 kernel/time/timer.c:2445
 handle_softirqs+0x283/0x870 kernel/softirq.c:579
 __do_softirq kernel/softirq.c:613 [inline]
 invoke_softirq kernel/softirq.c:453 [inline]
 __irq_exit_rcu+0xca/0x1f0 kernel/softirq.c:680
 irq_exit_rcu+0x9/0x30 kernel/softirq.c:696
 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:lock_acquire+0x175/0x360 kernel/locking/lockdep.c:5870
Code: 00 00 00 00 9c 8f 44 24 30 f7 44 24 30 00 02 00 00 0f 85 cd 00 00 00 f7 44 24 08 00 02 00 00 74 01 fb 65 48 8b 05 eb 32 d7 10 <48> 3b 44 24 58 0f 85 f2 00 00 00 48 83 c4 60 5b 41 5c 41 5d 41 5e
RSP: 0018:ffffc9000c02f548 EFLAGS: 00000206
RAX: 91f251b4ff0d9b00 RBX: 0000000000000000 RCX: 91f251b4ff0d9b00
RDX: ffffffff93252ad8 RSI: ffffffff8d9350da RDI: ffffffff8bc1cde0
RBP: ffffffff818b1c75 R08: 0000000000000008 R09: ffffffff95939ba8
R10: 000000006ca8952f R11: 000000003ec4ddab R12: 0000000000000000
R13: ffff88805dfba948 R14: 0000000000000001 R15: 0000000000000246
 touch_wq_lockdep_map+0xcb/0x180 kernel/workqueue.c:3907
 __flush_workqueue+0x121/0x14b0 kernel/workqueue.c:3949
 drain_workqueue+0xd3/0x390 kernel/workqueue.c:4113
 hci_dev_close_sync+0x659/0x1330 net/bluetooth/hci_sync.c:5211
 hci_dev_do_close net/bluetooth/hci_core.c:483 [inline]
 hci_unregister_dev+0x206/0x500 net/bluetooth/hci_core.c:2678
 vhci_release+0x80/0xd0 drivers/bluetooth/hci_vhci.c:665
 __fput+0x449/0xa70 fs/file_table.c:465
 task_work_run+0x1d1/0x260 kernel/task_work.c:227
 exit_task_work include/linux/task_work.h:40 [inline]
 do_exit+0x8d6/0x2550 kernel/exit.c:953
 do_group_exit+0x21c/0x2d0 kernel/exit.c:1102
 get_signal+0x125e/0x1310 kernel/signal.c:3034
 arch_do_signal_or_restart+0x95/0x780 arch/x86/kernel/signal.c:337
 exit_to_user_mode_loop kernel/entry/common.c:111 [inline]
 exit_to_user_mode_prepare include/linux/entry-common.h:329 [inline]
 __syscall_exit_to_user_mode_work kernel/entry/common.c:207 [inline]
 syscall_exit_to_user_mode+0x8b/0x120 kernel/entry/common.c:218
 do_syscall_64+0x103/0x210 arch/x86/entry/syscall_64.c:100
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fd40a790887
Code: Unable to access opcode bytes at 0x7fd40a79085d.
RSP: 002b:00007ffc76049ee8 EFLAGS: 00000206 ORIG_RAX: 0000000000000029
RAX: 0000000000000003 RBX: 0000000000000003 RCX: 00007fd40a790887
RDX: 0000000000000006 RSI: 0000000000000001 RDI: 0000000000000002
RBP: 00007ffc7604a5dc R08: 00007ffc76049edc R09: 00007ffc7604a2e7
R10: 00007ffc76049f60 R11: 0000000000000206 R12: 0000000000000258
R13: 00000000000927c0 R14: 0000000000059e02 R15: 00007ffc7604a630
 </TASK>
----------------
Code disassembly (best guess):
   0:	00 00                	add    %al,(%rax)
   2:	00 00                	add    %al,(%rax)
   4:	9c                   	pushf
   5:	8f 44 24 30          	pop    0x30(%rsp)
   9:	f7 44 24 30 00 02 00 	testl  $0x200,0x30(%rsp)
  10:	00
  11:	0f 85 cd 00 00 00    	jne    0xe4
  17:	f7 44 24 08 00 02 00 	testl  $0x200,0x8(%rsp)
  1e:	00
  1f:	74 01                	je     0x22
  21:	fb                   	sti
  22:	65 48 8b 05 eb 32 d7 	mov    %gs:0x10d732eb(%rip),%rax        # 0x10d73315
  29:	10
* 2a:	48 3b 44 24 58       	cmp    0x58(%rsp),%rax <-- trapping instruction
  2f:	0f 85 f2 00 00 00    	jne    0x127
  35:	48 83 c4 60          	add    $0x60,%rsp
  39:	5b                   	pop    %rbx
  3a:	41 5c                	pop    %r12
  3c:	41 5d                	pop    %r13
  3e:	41 5e                	pop    %r14