syzbot

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WARNING: CPU: 0 PID: 4303 at kernel/workqueue.c:1441 __queue_work+0x10c8/0x136c kernel/workqueue.c:1441
Modules linked in:
CPU: 0 PID: 4303 Comm: syz-executor Not tainted 6.1.132-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025
pstate: 404000c5 (nZcv daIF +PAN -UAO -TCO -DIT -SSBS BTYPE=--)
pc : __queue_work+0x10c8/0x136c kernel/workqueue.c:1441
lr : __queue_work+0x10c8/0x136c kernel/workqueue.c:1441
sp : ffff800008007b50
x29: ffff800008007b90 x28: 0000000000000008 x27: dfff800000000000
x26: ffff0000d8d87800 x25: dfff800000000000 x24: 0000000100000100
x23: ffff0000d8d879c0 x22: ffff0000c3eb1bc8 x21: 1fffe000187d6379
x20: 00000000000b0012 x19: ffff0000df660bc0 x18: ffff8000212b7420
x17: ffff80019e26e000 x16: ffff8000123287ec x15: 0000000000000000
x14: 1ffff00002b600b2 x13: dfff800000000000 x12: 00000000a5a6aa42
x11: 0000000000ff0100 x10: 0000000000000000 x9 : ffff800008212be4
x8 : ffff0000c3eb1bc0 x7 : ffff8000083f4288 x6 : 0000000000000000
x5 : 0000000000000080 x4 : 0000000000000001 x3 : ffff8000144ec360
x2 : ffff0000df660bc0 x1 : 0000000000000100 x0 : 0000000000000000
Call trace:
 __queue_work+0x10c8/0x136c kernel/workqueue.c:1441
 delayed_work_timer_fn+0x74/0x90 kernel/workqueue.c:1646
 call_timer_fn+0x1c0/0xa1c kernel/time/timer.c:1504
 expire_timers kernel/time/timer.c:1544 [inline]
 __run_timers+0x584/0x718 kernel/time/timer.c:1820
 run_timer_softirq+0x7c/0x114 kernel/time/timer.c:1833
 handle_softirqs+0x318/0xd58 kernel/softirq.c:578
 __do_softirq+0x14/0x20 kernel/softirq.c:612
 ____do_softirq+0x14/0x20 arch/arm64/kernel/irq.c:80
 call_on_irq_stack+0x24/0x4c arch/arm64/kernel/entry.S:893
 do_softirq_own_stack+0x20/0x2c arch/arm64/kernel/irq.c:85
 invoke_softirq kernel/softirq.c:459 [inline]
 __irq_exit_rcu+0x264/0x4d4 kernel/softirq.c:661
 irq_exit_rcu+0x14/0x84 kernel/softirq.c:673
 __el1_irq arch/arm64/kernel/entry-common.c:472 [inline]
 el1_interrupt+0x38/0x68 arch/arm64/kernel/entry-common.c:486
 el1h_64_irq_handler+0x18/0x24 arch/arm64/kernel/entry-common.c:491
 el1h_64_irq+0x64/0x68 arch/arm64/kernel/entry.S:581
 arch_local_irq_restore arch/arm64/include/asm/irqflags.h:122 [inline]
 lock_acquire+0x2ac/0x7cc kernel/locking/lockdep.c:5665
 __flush_workqueue+0x14c/0x11c4 kernel/workqueue.c:2812
 drain_workqueue+0xb8/0x32c kernel/workqueue.c:2977
 hci_dev_close_sync+0x38c/0xf1c net/bluetooth/hci_sync.c:5163
 hci_dev_do_close net/bluetooth/hci_core.c:510 [inline]
 hci_unregister_dev+0x200/0x4c4 net/bluetooth/hci_core.c:2707
 vhci_release+0x7c/0xcc drivers/bluetooth/hci_vhci.c:573
 __fput+0x1c8/0x7c8 fs/file_table.c:320
 ____fput+0x20/0x30 fs/file_table.c:348
 task_work_run+0x240/0x2f0 kernel/task_work.c:203
 exit_task_work include/linux/task_work.h:39 [inline]
 do_exit+0x550/0x1a84 kernel/exit.c:871
 do_group_exit+0x194/0x22c kernel/exit.c:1021
 __do_sys_exit_group kernel/exit.c:1032 [inline]
 __se_sys_exit_group kernel/exit.c:1030 [inline]
 __wake_up_parent+0x0/0x60 kernel/exit.c:1030
 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline]
 invoke_syscall+0x98/0x2bc arch/arm64/kernel/syscall.c:52
 el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:140
 do_el0_svc+0x58/0x13c arch/arm64/kernel/syscall.c:204
 el0_svc+0x58/0x168 arch/arm64/kernel/entry-common.c:637
 el0t_64_sync_handler+0x84/0xf0 arch/arm64/kernel/entry-common.c:655
 el0t_64_sync+0x18c/0x190 arch/arm64/kernel/entry.S:585
irq event stamp: 149299
hardirqs last  enabled at (149298): [<ffff80001240cf6c>] __raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:151 [inline]
hardirqs last  enabled at (149298): [<ffff80001240cf6c>] _raw_spin_unlock_irqrestore+0x48/0xac kernel/locking/spinlock.c:194
hardirqs last disabled at (149299): [<ffff80001240cdcc>] __raw_spin_lock_irq include/linux/spinlock_api_smp.h:117 [inline]
hardirqs last disabled at (149299): [<ffff80001240cdcc>] _raw_spin_lock_irq+0x34/0x9c kernel/locking/spinlock.c:170
softirqs last  enabled at (146414): [<ffff8000081c40ac>] softirq_handle_end kernel/softirq.c:421 [inline]
softirqs last  enabled at (146414): [<ffff8000081c40ac>] handle_softirqs+0xb84/0xd58 kernel/softirq.c:606
softirqs last disabled at (149283): [<ffff800008020174>] __do_softirq+0x14/0x20 kernel/softirq.c:612
---[ end trace 0000000000000000 ]---