------------[ cut here ]------------ WARNING: CPU: 1 PID: 6375 at kernel/workqueue.c:2282 current_wq_worker kernel/workqueue_internal.h:69 [inline] WARNING: CPU: 1 PID: 6375 at kernel/workqueue.c:2282 is_chained_work kernel/workqueue.c:2224 [inline] WARNING: CPU: 1 PID: 6375 at kernel/workqueue.c:2282 __queue_work+0xdf4/0x12ac kernel/workqueue.c:2281 Modules linked in: CPU: 1 PID: 6375 Comm: syz-executor Not tainted 6.10.0-rc7-syzkaller-gc912bf709078 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/27/2024 pstate: 004000c5 (nzcv daIF +PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc : __queue_work+0xdf4/0x12ac kernel/workqueue_internal.h:69 lr : current_wq_worker kernel/workqueue_internal.h:69 [inline] lr : is_chained_work kernel/workqueue.c:2224 [inline] lr : __queue_work+0xdf4/0x12ac kernel/workqueue.c:2281 sp : ffff800080017b20 x29: ffff800080017b70 x28: 1fffe0001b146791 x27: dfff800000000000 x26: dfff800000000000 x25: ffff0000d8ea4800 x24: 0000000000000008 x23: 1fffe0001b146791 x22: ffff0000d8ea49c0 x21: 0000000000000100 x20: ffff0000d8a33c80 x19: ffff0000ea074938 x18: ffff800099ee73c0 x17: ffff800124b1b000 x16: ffff800082f95f34 x15: 0000000000000002 x14: ffff80008f2e0568 x13: dfff800000000000 x12: 00000000417e49dc x11: 00000000f09dc492 x10: 0000000000ff0100 x9 : 0000000000000000 x8 : ffff0000d8a33c80 x7 : ffff8000804375bc x6 : 0000000000000000 x5 : 0000000000000001 x4 : 0000000000000001 x3 : ffff80008d9cb7e0 x2 : ffff0000ea074938 x1 : 0000000000000100 x0 : 0000000000000000 Call trace: current_wq_worker kernel/workqueue_internal.h:69 [inline] is_chained_work kernel/workqueue.c:2224 [inline] __queue_work+0xdf4/0x12ac kernel/workqueue.c:2281 delayed_work_timer_fn+0x74/0x90 kernel/workqueue.c:2506 call_timer_fn+0x1b4/0x8e8 kernel/time/timer.c:1792 expire_timers kernel/time/timer.c:1838 [inline] __run_timers kernel/time/timer.c:2417 [inline] __run_timer_base+0x59c/0x7b4 kernel/time/timer.c:2428 run_timer_base kernel/time/timer.c:2437 [inline] run_timer_softirq+0xcc/0x194 kernel/time/timer.c:2447 handle_softirqs+0x2e4/0xbfc kernel/softirq.c:554 __do_softirq+0x14/0x20 kernel/softirq.c:588 ____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:435 [inline] __irq_exit_rcu+0x1d8/0x434 kernel/softirq.c:637 irq_exit_rcu+0x14/0x84 kernel/softirq.c:649 __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_restore arch/arm64/include/asm/irqflags.h:175 [inline] arch_local_irq_restore arch/arm64/include/asm/irqflags.h:195 [inline] lock_acquire+0x27c/0x728 kernel/locking/lockdep.c:5757 touch_wq_lockdep_map+0x98/0x118 kernel/workqueue.c:3895 __flush_workqueue+0x118/0x1174 kernel/workqueue.c:3937 drain_workqueue+0xb8/0x32c kernel/workqueue.c:4101 hci_dev_close_sync+0x384/0xec0 net/bluetooth/hci_sync.c:5061 hci_dev_do_close net/bluetooth/hci_core.c:512 [inline] hci_unregister_dev+0x1f8/0x4bc net/bluetooth/hci_core.c:2728 vhci_release+0x7c/0xd0 drivers/bluetooth/hci_vhci.c:666 __fput+0x1bc/0x774 fs/file_table.c:422 ____fput+0x20/0x30 fs/file_table.c:450 task_work_run+0x230/0x2e0 kernel/task_work.c:180 exit_task_work include/linux/task_work.h:38 [inline] do_exit+0x4e4/0x1ac8 kernel/exit.c:876 do_group_exit+0x194/0x22c kernel/exit.c:1025 __do_sys_exit_group kernel/exit.c:1036 [inline] __se_sys_exit_group kernel/exit.c:1034 [inline] pid_child_should_wake+0x0/0x1dc kernel/exit.c:1034 __invoke_syscall arch/arm64/kernel/syscall.c:34 [inline] invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:48 el0_svc_common+0x130/0x23c arch/arm64/kernel/syscall.c:131 do_el0_svc+0x48/0x58 arch/arm64/kernel/syscall.c:150 el0_svc+0x54/0x168 arch/arm64/kernel/entry-common.c:712 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: 184355 hardirqs last enabled at (184354): [] __raw_spin_unlock_irq include/linux/spinlock_api_smp.h:159 [inline] hardirqs last enabled at (184354): [] _raw_spin_unlock_irq+0x30/0x80 kernel/locking/spinlock.c:202 hardirqs last disabled at (184355): [] __raw_spin_lock_irq include/linux/spinlock_api_smp.h:117 [inline] hardirqs last disabled at (184355): [] _raw_spin_lock_irq+0x28/0x70 kernel/locking/spinlock.c:170 softirqs last enabled at (182608): [] softirq_handle_end kernel/softirq.c:400 [inline] softirqs last enabled at (182608): [] handle_softirqs+0xa3c/0xbfc kernel/softirq.c:582 softirqs last disabled at (184351): [] __do_softirq+0x14/0x20 kernel/softirq.c:588 ---[ end trace 0000000000000000 ]---