------------[ cut here ]------------ ODEBUG: assert_init not available (active state 0) object type: timer_list hint: 0x0 WARNING: CPU: 1 PID: 4035 at lib/debugobjects.c:520 debug_print_object+0x148/0x1d4 lib/debugobjects.c:517 Modules linked in: CPU: 1 PID: 4035 Comm: syz-executor Not tainted 5.15.164-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/07/2024 pstate: 604000c5 (nZCv daIF +PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc : debug_print_object+0x148/0x1d4 lib/debugobjects.c:517 lr : debug_print_object+0x148/0x1d4 lib/debugobjects.c:517 sp : ffff80001cce7210 x29: ffff80001cce7210 x28: dfff800000000000 x27: ffff70000399ce50 x26: ffff0000d1b8bfa0 x25: ffff8000083bb674 x24: dfff800000000000 x23: 0000000000000000 x22: 0000000000000000 x21: ffff8000120b8080 x20: ffff800011c22f60 x19: ffff8000120b7bc0 x18: 0000000000000001 x17: 0000000000000000 x16: ffff800011ab8a28 x15: 00000000ffffffff x14: ffff0000c8311b40 x13: 0000000000000001 x12: 0000000000000001 x11: 0000000000000000 x10: 0000000000000000 x9 : 198e61e0c74e1200 x8 : 198e61e0c74e1200 x7 : 0000000000000001 x6 : 0000000000000001 x5 : ffff80001cce6978 x4 : ffff800014b9f960 x3 : ffff80000855531c x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000054 Call trace: debug_print_object+0x148/0x1d4 lib/debugobjects.c:517 debug_object_assert_init+0x314/0x3c4 lib/debugobjects.c:893 debug_timer_assert_init kernel/time/timer.c:739 [inline] debug_assert_init kernel/time/timer.c:784 [inline] del_timer+0xa8/0x2b4 kernel/time/timer.c:1224 try_to_grab_pending+0xa4/0x66c kernel/workqueue.c:1283 __cancel_work_timer+0x118/0x548 kernel/workqueue.c:3140 cancel_delayed_work_sync+0x24/0x38 kernel/workqueue.c:3322 hci_dev_do_close+0x26c/0x1060 net/bluetooth/hci_core.c:1771 hci_unregister_dev+0x248/0x4d4 net/bluetooth/hci_core.c:4040 vhci_release+0x74/0xc4 drivers/bluetooth/hci_vhci.c:345 __fput+0x1c4/0x800 fs/file_table.c:280 ____fput+0x20/0x30 fs/file_table.c:308 task_work_run+0x130/0x1e4 kernel/task_work.c:164 exit_task_work include/linux/task_work.h:32 [inline] do_exit+0x670/0x20bc kernel/exit.c:874 do_group_exit+0x110/0x268 kernel/exit.c:996 get_signal+0x634/0x1550 kernel/signal.c:2889 do_signal arch/arm64/kernel/signal.c:890 [inline] do_notify_resume+0x3d0/0x32b8 arch/arm64/kernel/signal.c:943 prepare_exit_to_user_mode arch/arm64/kernel/entry-common.c:133 [inline] exit_to_user_mode arch/arm64/kernel/entry-common.c:138 [inline] el0_svc+0xfc/0x1f0 arch/arm64/kernel/entry-common.c:609 el0t_64_sync_handler+0x84/0xe4 arch/arm64/kernel/entry-common.c:626 el0t_64_sync+0x1a0/0x1a4 arch/arm64/kernel/entry.S:584 irq event stamp: 1819104 hardirqs last enabled at (1819103): [] __raw_read_unlock_irqrestore include/linux/rwlock_api_smp.h:235 [inline] hardirqs last enabled at (1819103): [] _raw_read_unlock_irqrestore+0xac/0x158 kernel/locking/spinlock.c:268 hardirqs last disabled at (1819104): [] try_to_grab_pending+0xcc/0x66c kernel/workqueue.c:1272 softirqs last enabled at (1816562): [] softirq_handle_end kernel/softirq.c:401 [inline] softirqs last enabled at (1816562): [] handle_softirqs+0xb88/0xdbc kernel/softirq.c:586 softirqs last disabled at (1816535): [] __do_softirq kernel/softirq.c:592 [inline] softirqs last disabled at (1816535): [] do_softirq_own_stack include/asm-generic/softirq_stack.h:10 [inline] softirqs last disabled at (1816535): [] invoke_softirq kernel/softirq.c:439 [inline] softirqs last disabled at (1816535): [] __irq_exit_rcu+0x268/0x4d8 kernel/softirq.c:641 ---[ end trace e769f502321179fa ]--- ------------[ cut here ]------------ WARNING: CPU: 0 PID: 4035 at kernel/workqueue.c:634 set_work_data kernel/workqueue.c:634 [inline] WARNING: CPU: 0 PID: 4035 at kernel/workqueue.c:634 clear_work_data kernel/workqueue.c:697 [inline] WARNING: CPU: 0 PID: 4035 at kernel/workqueue.c:634 __cancel_work_timer+0x518/0x548 kernel/workqueue.c:3183 Modules linked in: CPU: 0 PID: 4035 Comm: syz-executor Tainted: G W 5.15.164-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/07/2024 pstate: 80400005 (Nzcv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc : set_work_data kernel/workqueue.c:634 [inline] pc : clear_work_data kernel/workqueue.c:697 [inline] pc : __cancel_work_timer+0x518/0x548 kernel/workqueue.c:3183 lr : set_work_data kernel/workqueue.c:634 [inline] lr : clear_work_data kernel/workqueue.c:697 [inline] lr : __cancel_work_timer+0x518/0x548 kernel/workqueue.c:3183 sp : ffff80001cce74a0 x29: ffff80001cce75f0 x28: 0000000000000001 x27: ffff80001cce7588 x26: 0000000000000001 x25: 1fffe0001b4e3379 x24: dfff800000000000 x23: ffff70000399cea4 x22: 0000000000000000 x21: 0000001fffffffc0 x20: 0000000000000000 x19: ffff0000da719bc8 x18: ffff80001cce7040 x17: 0000000000000000 x16: ffff800011ab8bb8 x15: 000000000003fbbe x14: 1ffff0000295806a x13: dfff800000000000 x12: 0000000000000001 x11: 0000000000000000 x10: 0000000000000000 x9 : ffff0000c8311b40 x8 : ffff800008209ef8 x7 : ffff80000821a6d0 x6 : 0000000000000000 x5 : 0000000000000000 x4 : 0000000000000000 x3 : ffff80000820e940 x2 : 0000000000000000 x1 : 0000000000000000 x0 : 0000000000000000 Call trace: set_work_data kernel/workqueue.c:634 [inline] clear_work_data kernel/workqueue.c:697 [inline] __cancel_work_timer+0x518/0x548 kernel/workqueue.c:3183 cancel_delayed_work_sync+0x24/0x38 kernel/workqueue.c:3322 hci_dev_do_close+0x26c/0x1060 net/bluetooth/hci_core.c:1771 hci_unregister_dev+0x248/0x4d4 net/bluetooth/hci_core.c:4040 vhci_release+0x74/0xc4 drivers/bluetooth/hci_vhci.c:345 __fput+0x1c4/0x800 fs/file_table.c:280 ____fput+0x20/0x30 fs/file_table.c:308 task_work_run+0x130/0x1e4 kernel/task_work.c:164 exit_task_work include/linux/task_work.h:32 [inline] do_exit+0x670/0x20bc kernel/exit.c:874 do_group_exit+0x110/0x268 kernel/exit.c:996 get_signal+0x634/0x1550 kernel/signal.c:2889 do_signal arch/arm64/kernel/signal.c:890 [inline] do_notify_resume+0x3d0/0x32b8 arch/arm64/kernel/signal.c:943 prepare_exit_to_user_mode arch/arm64/kernel/entry-common.c:133 [inline] exit_to_user_mode arch/arm64/kernel/entry-common.c:138 [inline] el0_svc+0xfc/0x1f0 arch/arm64/kernel/entry-common.c:609 el0t_64_sync_handler+0x84/0xe4 arch/arm64/kernel/entry-common.c:626 el0t_64_sync+0x1a0/0x1a4 arch/arm64/kernel/entry.S:584 irq event stamp: 1819160 hardirqs last enabled at (1819159): [] __exit_to_kernel_mode arch/arm64/kernel/entry-common.c:81 [inline] hardirqs last enabled at (1819159): [] exit_to_kernel_mode+0x100/0x178 arch/arm64/kernel/entry-common.c:91 hardirqs last disabled at (1819160): [] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:396 softirqs last enabled at (1819154): [] softirq_handle_end kernel/softirq.c:401 [inline] softirqs last enabled at (1819154): [] handle_softirqs+0xb88/0xdbc kernel/softirq.c:586 softirqs last disabled at (1819107): [] __do_softirq kernel/softirq.c:592 [inline] softirqs last disabled at (1819107): [] do_softirq_own_stack include/asm-generic/softirq_stack.h:10 [inline] softirqs last disabled at (1819107): [] invoke_softirq kernel/softirq.c:439 [inline] softirqs last disabled at (1819107): [] __irq_exit_rcu+0x268/0x4d8 kernel/softirq.c:641 ---[ end trace e769f502321179fb ]---