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workqueue: cannot queue hci_cmd_timeout on wq hci2
WARNING: CPU: 1 PID: 6531 at kernel/workqueue.c:2258 __queue_work+0xe38/0x1230 kernel/workqueue.c:2256
Modules linked in:
CPU: 1 UID: 0 PID: 6531 Comm: syz-executor Not tainted 6.16.0-rc7-syzkaller-g82af5ea7c611 #0 PREEMPT 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/18/2025
pstate: 634000c5 (nZCv daIF +PAN -UAO +TCO +DIT -SSBS BTYPE=--)
pc : __queue_work+0xe38/0x1230 kernel/workqueue.c:2256
lr : __queue_work+0xe38/0x1230 kernel/workqueue.c:2256
sp : ffff800080017b20
x29: ffff800080017b70 x28: dfff800000000000 x27: ffff700010002f84
x26: ffff0000cb631000 x25: dfff800000000000 x24: 0000000000000008
x23: ffff0000cb6311c0 x22: 0000000000000100 x21: 1fffe000196c6238
x20: ffff800092c65000 x19: ffff0000c9cc8988 x18: 00000000ffffffff
x17: 0000000000000000 x16: ffff80008ae69508 x15: ffff700011ee0158
x14: 1ffff00011ee0158 x13: 0000000000000004 x12: ffffffffffffffff
x11: ffff700011ee0158 x10: 0000000000ff0100 x9 : 98f3d8a0e3a80800
x8 : 98f3d8a0e3a80800 x7 : 0000000000000001 x6 : 0000000000000001
x5 : ffff800080017478 x4 : ffff80008f776bc0 x3 : ffff80008054bdfc
x2 : 0000000000000000 x1 : 0000000100000100 x0 : 0000000000000000
Call trace:
 __queue_work+0xe38/0x1230 kernel/workqueue.c:2256 (P)
 delayed_work_timer_fn+0x74/0x90 kernel/workqueue.c:2487
 call_timer_fn+0x1b4/0x818 kernel/time/timer.c:1747
 expire_timers kernel/time/timer.c:1793 [inline]
 __run_timers kernel/time/timer.c:2372 [inline]
 __run_timer_base+0x54c/0x76c kernel/time/timer.c:2384
 run_timer_base kernel/time/timer.c:2393 [inline]
 run_timer_softirq+0xcc/0x194 kernel/time/timer.c:2403
 handle_softirqs+0x328/0xc88 kernel/softirq.c:579
 __do_softirq+0x14/0x20 kernel/softirq.c:613
 ____do_softirq+0x14/0x20 arch/arm64/kernel/irq.c:68
 call_on_irq_stack+0x30/0x48 arch/arm64/kernel/entry.S:891
 do_softirq_own_stack+0x20/0x2c arch/arm64/kernel/irq.c:73
 invoke_softirq kernel/softirq.c:460 [inline]
 __irq_exit_rcu+0x1b0/0x478 kernel/softirq.c:680
 irq_exit_rcu+0x14/0x84 kernel/softirq.c:696
 __el1_irq arch/arm64/kernel/entry-common.c:654 [inline]
 el1_interrupt+0x38/0x54 arch/arm64/kernel/entry-common.c:668
 el1h_64_irq_handler+0x18/0x24 arch/arm64/kernel/entry-common.c:673
 el1h_64_irq+0x6c/0x70 arch/arm64/kernel/entry.S:592
 __daif_local_irq_restore arch/arm64/include/asm/irqflags.h:175 [inline] (P)
 arch_local_irq_restore arch/arm64/include/asm/irqflags.h:195 [inline] (P)
 lock_acquire+0x178/0x2e0 kernel/locking/lockdep.c:5874 (P)
 touch_wq_lockdep_map+0xa8/0x164 kernel/workqueue.c:3909
 __flush_workqueue+0xfc/0x109c kernel/workqueue.c:3951
 drain_workqueue+0xa4/0x310 kernel/workqueue.c:4115
 hci_dev_close_sync+0x4b8/0x1154 net/bluetooth/hci_sync.c:5280
 hci_dev_do_close net/bluetooth/hci_core.c:501 [inline]
 hci_unregister_dev+0x200/0x4bc net/bluetooth/hci_core.c:2717
 vhci_release+0x7c/0xd0 drivers/bluetooth/hci_vhci.c:665
 __fput+0x340/0x75c fs/file_table.c:465
 ____fput+0x20/0x58 fs/file_table.c:493
 task_work_run+0x1dc/0x260 kernel/task_work.c:227
 exit_task_work include/linux/task_work.h:40 [inline]
 do_exit+0x524/0x19fc kernel/exit.c:964
 do_group_exit+0x194/0x22c kernel/exit.c:1105
 __do_sys_exit_group kernel/exit.c:1116 [inline]
 __se_sys_exit_group kernel/exit.c:1114 [inline]
 pid_child_should_wake+0x0/0x1dc kernel/exit.c:1114
 __invoke_syscall arch/arm64/kernel/syscall.c:35 [inline]
 invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:49
 el0_svc_common+0x130/0x23c arch/arm64/kernel/syscall.c:132
 do_el0_svc+0x48/0x58 arch/arm64/kernel/syscall.c:151
 el0_svc+0x58/0x180 arch/arm64/kernel/entry-common.c:879
 el0t_64_sync_handler+0x84/0x12c arch/arm64/kernel/entry-common.c:898
 el0t_64_sync+0x198/0x19c arch/arm64/kernel/entry.S:596
irq event stamp: 242225
hardirqs last  enabled at (242224): [<ffff80008af232f4>] __raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:151 [inline]
hardirqs last  enabled at (242224): [<ffff80008af232f4>] _raw_spin_unlock_irqrestore+0x38/0x98 kernel/locking/spinlock.c:194
hardirqs last disabled at (242225): [<ffff80008af2319c>] __raw_spin_lock_irq include/linux/spinlock_api_smp.h:117 [inline]
hardirqs last disabled at (242225): [<ffff80008af2319c>] _raw_spin_lock_irq+0x28/0x70 kernel/locking/spinlock.c:170
softirqs last  enabled at (240804): [<ffff8000803cedfc>] softirq_handle_end kernel/softirq.c:425 [inline]
softirqs last  enabled at (240804): [<ffff8000803cedfc>] handle_softirqs+0xaf8/0xc88 kernel/softirq.c:607
softirqs last disabled at (242199): [<ffff800080020efc>] __do_softirq+0x14/0x20 kernel/softirq.c:613
---[ end trace 0000000000000000 ]---