------------[ cut here ]------------
workqueue: cannot queue hci_cmd_timeout on wq hci4
WARNING: kernel/workqueue.c:2259 at __queue_work+0xd38/0xfb0 kernel/workqueue.c:2257, CPU#1: syz-executor/10188
Modules linked in:
CPU: 1 UID: 0 PID: 10188 Comm: syz-executor Not tainted 6.16.0-rc4-next-20250704-syzkaller #0 PREEMPT(full) 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025
RIP: 0010:__queue_work+0xd38/0xfb0 kernel/workqueue.c:2257
Code: 42 80 3c 20 00 74 08 4c 89 ef e8 33 09 9a 00 49 8b 75 00 49 81 c7 78 01 00 00 48 c7 c7 60 d1 89 8b 4c 89 fa e8 d9 3a f9 ff 90 <0f> 0b 90 90 e9 1a f5 ff ff e8 1a 6c 35 00 90 0f 0b 90 e9 dd fc ff
RSP: 0018:ffffc90000a08b10 EFLAGS: 00010046
RAX: 575b6fd24fc20e00 RBX: 0000000000000100 RCX: ffff888030990000
RDX: 0000000000000100 RSI: 0000000000000000 RDI: 0000000000000002
RBP: 1ffff1100a783338 R08: 0000000000000003 R09: 0000000000000004
R10: dffffc0000000000 R11: fffffbfff1bfa430 R12: dffffc0000000000
R13: ffff888033830988 R14: 0000000000000008 R15: ffff888053c19978
FS:  000055555641c500(0000) GS:ffff888125ce7000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000110c2fe1e0 CR3: 0000000026e98000 CR4: 00000000003526f0
Call Trace:
 <IRQ>
 call_timer_fn+0x17e/0x5f0 kernel/time/timer.c:1747
 expire_timers kernel/time/timer.c:1793 [inline]
 __run_timers kernel/time/timer.c:2372 [inline]
 __run_timer_base+0x646/0x860 kernel/time/timer.c:2384
 run_timer_base kernel/time/timer.c:2393 [inline]
 run_timer_softirq+0xb7/0x180 kernel/time/timer.c:2403
 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:1050 [inline]
 sysvec_apic_timer_interrupt+0xa6/0xc0 arch/x86/kernel/apic/apic.c:1050
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702
RIP: 0010:__raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:152 [inline]
RIP: 0010:_raw_spin_unlock_irqrestore+0xa8/0x110 kernel/locking/spinlock.c:194
Code: 74 05 e8 fb 96 4c f6 48 c7 44 24 20 00 00 00 00 9c 8f 44 24 20 f6 44 24 21 02 75 4f f7 c3 00 02 00 00 74 01 fb bf 01 00 00 00 <e8> c3 9a 15 f6 65 8b 05 ec e3 28 07 85 c0 74 40 48 c7 04 24 0e 36
RSP: 0018:ffffc900055afb20 EFLAGS: 00000206
RAX: 575b6fd24fc20e00 RBX: 0000000000000a02 RCX: 575b6fd24fc20e00
RDX: 0000000000000006 RSI: ffffffff8d9acba0 RDI: 0000000000000001
RBP: ffffc900055afbb8 R08: ffffffff8fa25d37 R09: 1ffffffff1f44ba6
R10: dffffc0000000000 R11: fffffbfff1f44ba7 R12: dffffc0000000000
R13: 0000000000000a02 R14: ffffffff8e25cf00 R15: 1ffff92000ab5f64
 kasan_quarantine_remove_cache+0x127/0x190 mm/kasan/quarantine.c:372
 kmem_cache_destroy+0x6e/0x160 mm/slab_common.c:521
 bio_put_slab block/bio.c:155 [inline]
 bioset_exit+0x583/0x690 block/bio.c:1764
 bch2_fs_io_read_exit+0x67/0x80 fs/bcachefs/io_read.c:1513
 __bch2_fs_free fs/bcachefs/super.c:607 [inline]
 bch2_fs_release+0x24c/0x830 fs/bcachefs/super.c:667
 kobject_cleanup lib/kobject.c:689 [inline]
 kobject_release lib/kobject.c:720 [inline]
 kref_put include/linux/kref.h:65 [inline]
 kobject_put+0x22b/0x480 lib/kobject.c:737
 deactivate_locked_super+0xb9/0x130 fs/super.c:474
 cleanup_mnt+0x425/0x4c0 fs/namespace.c:1378
 task_work_run+0x1d1/0x260 kernel/task_work.c:227
 resume_user_mode_work include/linux/resume_user_mode.h:50 [inline]
 exit_to_user_mode_loop+0xec/0x110 kernel/entry/common.c:43
 exit_to_user_mode_prepare include/linux/irq-entry-common.h:208 [inline]
 syscall_exit_to_user_mode_work include/linux/entry-common.h:175 [inline]
 syscall_exit_to_user_mode include/linux/entry-common.h:210 [inline]
 do_syscall_64+0x2bd/0x3b0 arch/x86/entry/syscall_64.c:100
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f514318fc57
Code: a8 ff ff ff f7 d8 64 89 01 48 83 c8 ff c3 0f 1f 44 00 00 31 f6 e9 09 00 00 00 66 0f 1f 84 00 00 00 00 00 b8 a6 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 01 c3 48 c7 c2 a8 ff ff ff f7 d8 64 89 02 b8
RSP: 002b:00007ffc52f0a8b8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
RAX: 0000000000000000 RBX: 00007f5143210925 RCX: 00007f514318fc57
RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffc52f0a970
RBP: 00007ffc52f0a970 R08: 0000000000000000 R09: 0000000000000000
R10: 00000000ffffffff R11: 0000000000000246 R12: 00007ffc52f0ba00
R13: 00007f5143210925 R14: 000000000006c736 R15: 00007ffc52f0ba40
 </TASK>
----------------
Code disassembly (best guess):
   0:	74 05                	je     0x7
   2:	e8 fb 96 4c f6       	call   0xf64c9702
   7:	48 c7 44 24 20 00 00 	movq   $0x0,0x20(%rsp)
   e:	00 00
  10:	9c                   	pushf
  11:	8f 44 24 20          	pop    0x20(%rsp)
  15:	f6 44 24 21 02       	testb  $0x2,0x21(%rsp)
  1a:	75 4f                	jne    0x6b
  1c:	f7 c3 00 02 00 00    	test   $0x200,%ebx
  22:	74 01                	je     0x25
  24:	fb                   	sti
  25:	bf 01 00 00 00       	mov    $0x1,%edi
* 2a:	e8 c3 9a 15 f6       	call   0xf6159af2 <-- trapping instruction
  2f:	65 8b 05 ec e3 28 07 	mov    %gs:0x728e3ec(%rip),%eax        # 0x728e422
  36:	85 c0                	test   %eax,%eax
  38:	74 40                	je     0x7a
  3a:	48                   	rex.W
  3b:	c7                   	.byte 0xc7
  3c:	04 24                	add    $0x24,%al
  3e:	0e                   	(bad)
  3f:	36                   	ss