INFO: task kworker/0:1:1619 blocked for more than 430 seconds. Not tainted 6.5.0-rc5-syzkaller-00353-gae545c3283dc #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/0:1 state:D stack:0 pid:1619 ppid:2 flags:0x00000008 Workqueue: events rfkill_sync_work Call trace: __switch_to+0x1d0/0x340 arch/arm64/kernel/process.c:556 context_switch kernel/sched/core.c:5381 [inline] __schedule+0xac4/0x2ae4 kernel/sched/core.c:6710 schedule+0xc8/0x19c kernel/sched/core.c:6786 schedule_preempt_disabled+0x18/0x2c kernel/sched/core.c:6845 __mutex_lock_common kernel/locking/mutex.c:679 [inline] __mutex_lock+0x4e8/0x840 kernel/locking/mutex.c:747 mutex_lock_nested+0x24/0x30 kernel/locking/mutex.c:799 device_lock include/linux/device.h:958 [inline] nfc_dev_down+0x2c/0x234 net/nfc/core.c:143 nfc_rfkill_set_block+0x28/0xb8 net/nfc/core.c:179 rfkill_set_block+0x160/0x3c4 net/rfkill/core.c:345 rfkill_sync_work+0xa0/0xdc net/rfkill/core.c:1042 process_one_work+0x80c/0x1570 kernel/workqueue.c:2600 worker_thread+0x3f8/0xf54 kernel/workqueue.c:2751 kthread+0x27c/0x300 kernel/kthread.c:389 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:853 INFO: task kworker/0:2:5307 blocked for more than 430 seconds. Not tainted 6.5.0-rc5-syzkaller-00353-gae545c3283dc #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/0:2 state:D stack:0 pid:5307 ppid:2 flags:0x00000008 Workqueue: events rfkill_global_led_trigger_worker Call trace: __switch_to+0x1d0/0x340 arch/arm64/kernel/process.c:556 context_switch kernel/sched/core.c:5381 [inline] __schedule+0xac4/0x2ae4 kernel/sched/core.c:6710 schedule+0xc8/0x19c kernel/sched/core.c:6786 schedule_preempt_disabled+0x18/0x2c kernel/sched/core.c:6845 __mutex_lock_common kernel/locking/mutex.c:679 [inline] __mutex_lock+0x4e8/0x840 kernel/locking/mutex.c:747 mutex_lock_nested+0x24/0x30 kernel/locking/mutex.c:799 rfkill_global_led_trigger_worker+0x2c/0x10c net/rfkill/core.c:181 process_one_work+0x80c/0x1570 kernel/workqueue.c:2600 worker_thread+0x3f8/0xf54 kernel/workqueue.c:2751 kthread+0x27c/0x300 kernel/kthread.c:389 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:853 INFO: task syz-executor.0:6178 blocked for more than 430 seconds. Not tainted 6.5.0-rc5-syzkaller-00353-gae545c3283dc #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor.0 state:D stack:0 pid:6178 ppid:3101 flags:0x0040000d Call trace: __switch_to+0x1d0/0x340 arch/arm64/kernel/process.c:556 context_switch kernel/sched/core.c:5381 [inline] __schedule+0xac4/0x2ae4 kernel/sched/core.c:6710 schedule+0xc8/0x19c kernel/sched/core.c:6786 schedule_timeout+0x1fc/0x234 kernel/time/timer.c:2143 do_wait_for_common kernel/sched/completion.c:85 [inline] __wait_for_common+0x1d0/0x4ac kernel/sched/completion.c:106 wait_for_common kernel/sched/completion.c:117 [inline] wait_for_completion+0x20/0x2c kernel/sched/completion.c:138 __flush_work+0x414/0x864 kernel/workqueue.c:3389 __cancel_work_timer+0x288/0x3a0 kernel/workqueue.c:3476 cancel_work_sync+0x14/0x20 kernel/workqueue.c:3512 rfkill_unregister+0x70/0x240 net/rfkill/core.c:1124 nfc_unregister_device+0x68/0x298 net/nfc/core.c:1167 nci_unregister_device+0x1bc/0x294 net/nfc/nci/core.c:1303 virtual_ncidev_close+0x48/0xb0 drivers/nfc/virtual_ncidev.c:163 __fput+0x2a8/0x86c fs/file_table.c:384 ____fput+0x10/0x1c fs/file_table.c:412 task_work_run+0x124/0x20c kernel/task_work.c:179 resume_user_mode_work include/linux/resume_user_mode.h:49 [inline] do_notify_resume+0xb70/0x302c arch/arm64/kernel/signal.c:1305 exit_to_user_mode_prepare arch/arm64/kernel/entry-common.c:137 [inline] exit_to_user_mode arch/arm64/kernel/entry-common.c:144 [inline] el0_svc_compat+0x110/0x134 arch/arm64/kernel/entry-common.c:787 el0t_32_sync_handler+0x98/0x13c arch/arm64/kernel/entry-common.c:796 el0t_32_sync+0x194/0x198 arch/arm64/kernel/entry.S:596 Showing all locks held in the system: 1 lock held by rcu_tasks_kthre/12: #0: ffff800086572350 (rcu_tasks.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x38/0xd7c kernel/rcu/tasks.h:522 1 lock held by rcu_tasks_trace/13: #0: ffff800086572b10 (rcu_tasks_trace.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x38/0xd7c kernel/rcu/tasks.h:522 1 lock held by khungtaskd/28: #0: ffff800086572660 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x44/0x2d4 kernel/locking/lockdep.c:6615 2 locks held by udevd/2910: 2 locks held by getty/3030: #0: ffff00001508e098 (&tty->ldisc_sem){++++}-{0:0}, at: ldsem_down_read+0x3c/0x4c drivers/tty/tty_ldsem.c:340 #1: ffff8000892fb2f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x968/0xf00 drivers/tty/n_tty.c:2187 5 locks held by kworker/0:0/423: 4 locks held by kworker/0:1/1619: #0: ffff000009820d38 ((wq_completion)events){+.+.}-{0:0}, at: process_one_work+0x704/0x1570 kernel/workqueue.c:2574 #1: ffff80008d537cc0 ((work_completion)(&rfkill->sync_work)){+.+.}-{0:0}, at: process_one_work+0x704/0x1570 kernel/workqueue.c:2574 #2: ffff800087938068 (rfkill_global_mutex){+.+.}-{3:3}, at: rfkill_sync_work+0x2c/0xdc net/rfkill/core.c:1040 #3: ffff000024916100 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:958 [inline] #3: ffff000024916100 (&dev->mutex){....}-{3:3}, at: nfc_dev_down+0x2c/0x234 net/nfc/core.c:143 3 locks held by kworker/0:2/5307: #0: ffff000009820d38 ((wq_completion)events){+.+.}-{0:0}, at: process_one_work+0x704/0x1570 kernel/workqueue.c:2574 #1: ffff80008e067cc0 ((work_completion)(&rfkill_global_led_trigger_work)){+.+.}-{0:0}, at: process_one_work+0x704/0x1570 kernel/workqueue.c:2574 #2: ffff800087938068 (rfkill_global_mutex){+.+.}-{3:3}, at: rfkill_global_led_trigger_worker+0x2c/0x10c net/rfkill/core.c:181 1 lock held by syz-executor.0/6178: #0: ffff000024916100 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:958 [inline] #0: ffff000024916100 (&dev->mutex){....}-{3:3}, at: nfc_unregister_device+0x48/0x298 net/nfc/core.c:1165 1 lock held by syz-executor.0/6207: #0: ffff00006a8f73d8 (&rq->__lock){-.-.}-{2:2}, at: raw_spin_rq_lock_nested kernel/sched/core.c:558 [inline] #0: ffff00006a8f73d8 (&rq->__lock){-.-.}-{2:2}, at: raw_spin_rq_lock kernel/sched/sched.h:1366 [inline] #0: ffff00006a8f73d8 (&rq->__lock){-.-.}-{2:2}, at: rq_lock kernel/sched/sched.h:1675 [inline] #0: ffff00006a8f73d8 (&rq->__lock){-.-.}-{2:2}, at: __schedule+0x268/0x2ae4 kernel/sched/core.c:6627 1 lock held by udevd/6297: 1 lock held by syz-executor.1/7155: 3 locks held by syz-executor.0/7156: =============================================