------------[ cut here ]------------ WARNING: CPU: 1 PID: 6180 at kernel/workqueue.c:1728 current_wq_worker kernel/workqueue_internal.h:69 [inline] WARNING: CPU: 1 PID: 6180 at kernel/workqueue.c:1728 is_chained_work kernel/workqueue.c:1669 [inline] WARNING: CPU: 1 PID: 6180 at kernel/workqueue.c:1728 __queue_work+0xdb8/0x12bc kernel/workqueue.c:1727 Modules linked in: CPU: 1 PID: 6180 Comm: syz-executor.1 Not tainted 6.8.0-rc7-syzkaller-g707081b61156 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024 pstate: 004000c5 (nzcv daIF +PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc : __queue_work+0xdb8/0x12bc kernel/workqueue_internal.h:69 lr : current_wq_worker kernel/workqueue_internal.h:69 [inline] lr : is_chained_work kernel/workqueue.c:1669 [inline] lr : __queue_work+0xdb8/0x12bc kernel/workqueue.c:1727 sp : ffff800080017b70 x29: ffff800080017bb0 x28: 1fffe0001c8d2001 x27: dfff800000000000 x26: dfff800000000000 x25: ffff0000d4c27800 x24: 0000000000000008 x23: ffff0000d4c279c0 x22: ffff0000e4690008 x21: 0000000000000100 x20: ffff0000e4690000 x19: ffff0000e4654c10 x18: ffff800097926fa0 x17: ffff800125436000 x16: ffff80008ad6b09c x15: 0000000000000002 x14: ffff80008eca0458 x13: dfff800000000000 x12: 00000000eeeff7fe x11: 00000000aef9341b x10: 0000000000ff0100 x9 : 0000000000000000 x8 : ffff0000e4690000 x7 : ffff80008042755c x6 : 0000000000000000 x5 : 0000000000000001 x4 : 0000000000000001 x3 : ffff80008d4611c0 x2 : ffff0000e4654c10 x1 : 0000000000000100 x0 : 0000000000000000 Call trace: current_wq_worker kernel/workqueue_internal.h:69 [inline] is_chained_work kernel/workqueue.c:1669 [inline] __queue_work+0xdb8/0x12bc kernel/workqueue.c:1727 delayed_work_timer_fn+0x74/0x90 kernel/workqueue.c:1931 call_timer_fn+0x19c/0x8d4 kernel/time/timer.c:1700 expire_timers kernel/time/timer.c:1746 [inline] __run_timers+0x57c/0x6fc kernel/time/timer.c:2038 run_timer_softirq+0x7c/0x114 kernel/time/timer.c:2051 __do_softirq+0x2d8/0xce4 kernel/softirq.c:553 ____do_softirq+0x14/0x20 arch/arm64/kernel/irq.c:81 call_on_irq_stack+0x24/0x4c arch/arm64/kernel/entry.S:889 do_softirq_own_stack+0x20/0x2c arch/arm64/kernel/irq.c:86 invoke_softirq kernel/softirq.c:434 [inline] __irq_exit_rcu+0x1d8/0x434 kernel/softirq.c:632 irq_exit_rcu+0x14/0x84 kernel/softirq.c:644 __el1_irq arch/arm64/kernel/entry-common.c:537 [inline] el1_interrupt+0x38/0x68 arch/arm64/kernel/entry-common.c:551 el1h_64_irq_handler+0x18/0x24 arch/arm64/kernel/entry-common.c:556 el1h_64_irq+0x64/0x68 arch/arm64/kernel/entry.S:594 __daif_local_irq_enable arch/arm64/include/asm/irqflags.h:27 [inline] arch_local_irq_enable arch/arm64/include/asm/irqflags.h:49 [inline] __raw_spin_unlock_irq include/linux/spinlock_api_smp.h:159 [inline] _raw_spin_unlock_irq+0x34/0x80 kernel/locking/spinlock.c:202 flush_workqueue_prep_pwqs+0x310/0x450 kernel/workqueue.c:3118 __flush_workqueue+0x414/0x11c4 kernel/workqueue.c:3172 drain_workqueue+0xb8/0x32c kernel/workqueue.c:3311 hci_dev_close_sync+0x384/0xf20 net/bluetooth/hci_sync.c:4942 hci_dev_do_close net/bluetooth/hci_core.c:554 [inline] hci_unregister_dev+0x1e4/0x4a8 net/bluetooth/hci_core.c:2740 vhci_release+0x7c/0xd0 drivers/bluetooth/hci_vhci.c:674 __fput+0x30c/0x738 fs/file_table.c:376 ____fput+0x20/0x30 fs/file_table.c:404 task_work_run+0x230/0x2e0 kernel/task_work.c:180 exit_task_work include/linux/task_work.h:38 [inline] do_exit+0x618/0x1f64 kernel/exit.c:871 do_group_exit+0x194/0x22c kernel/exit.c:1020 get_signal+0x1500/0x15ec kernel/signal.c:2893 do_signal+0x238/0x3e8c arch/arm64/kernel/signal.c:1308 do_notify_resume+0x74/0x1f4 arch/arm64/kernel/entry-common.c:148 exit_to_user_mode_prepare arch/arm64/kernel/entry-common.c:169 [inline] exit_to_user_mode arch/arm64/kernel/entry-common.c:178 [inline] el0_svc+0xac/0x168 arch/arm64/kernel/entry-common.c:713 el0t_64_sync_handler+0x84/0xfc arch/arm64/kernel/entry-common.c:730 el0t_64_sync+0x190/0x194 arch/arm64/kernel/entry.S:598 irq event stamp: 179457 hardirqs last enabled at (179456): [] __do_softirq+0x1bc/0xce4 kernel/softirq.c:537 hardirqs last disabled at (179457): [] __raw_spin_lock_irq include/linux/spinlock_api_smp.h:117 [inline] hardirqs last disabled at (179457): [] _raw_spin_lock_irq+0x28/0x70 kernel/locking/spinlock.c:170 softirqs last enabled at (169280): [] softirq_handle_end kernel/softirq.c:399 [inline] softirqs last enabled at (169280): [] __do_softirq+0xac8/0xce4 kernel/softirq.c:582 softirqs last disabled at (179455): [] ____do_softirq+0x14/0x20 arch/arm64/kernel/irq.c:81 ---[ end trace 0000000000000000 ]---