INFO: task kworker/1:2:111 blocked for more than 143 seconds. Not tainted 6.1.103-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/1:2 state:D stack:0 pid:111 ppid:2 flags:0x00000008 Workqueue: events rfkill_sync_work Call trace: __switch_to+0x320/0x754 arch/arm64/kernel/process.c:553 context_switch kernel/sched/core.c:5241 [inline] __schedule+0xef4/0x1d44 kernel/sched/core.c:6558 schedule+0xc4/0x170 kernel/sched/core.c:6634 schedule_preempt_disabled+0x18/0x2c kernel/sched/core.c:6693 __mutex_lock_common+0xbd8/0x21a0 kernel/locking/mutex.c:679 __mutex_lock kernel/locking/mutex.c:747 [inline] mutex_lock_nested+0x38/0x44 kernel/locking/mutex.c:799 device_lock include/linux/device.h:837 [inline] nfc_dev_down net/nfc/core.c:143 [inline] nfc_rfkill_set_block+0x50/0x2d0 net/nfc/core.c:179 rfkill_set_block+0x18c/0x37c net/rfkill/core.c:345 rfkill_sync_work+0x98/0x104 net/rfkill/core.c:1042 process_one_work+0x7ac/0x1404 kernel/workqueue.c:2292 worker_thread+0x8e4/0xfec kernel/workqueue.c:2439 kthread+0x250/0x2d8 kernel/kthread.c:376 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:864 INFO: task udevd:3910 blocked for more than 143 seconds. Not tainted 6.1.103-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:udevd state:D stack:0 pid:3910 ppid:1 flags:0x00000004 Call trace: __switch_to+0x320/0x754 arch/arm64/kernel/process.c:553 context_switch kernel/sched/core.c:5241 [inline] __schedule+0xef4/0x1d44 kernel/sched/core.c:6558 schedule+0xc4/0x170 kernel/sched/core.c:6634 schedule_preempt_disabled+0x18/0x2c kernel/sched/core.c:6693 __mutex_lock_common+0xbd8/0x21a0 kernel/locking/mutex.c:679 __mutex_lock kernel/locking/mutex.c:747 [inline] mutex_lock_nested+0x38/0x44 kernel/locking/mutex.c:799 device_lock include/linux/device.h:837 [inline] uevent_show+0x178/0x338 drivers/base/core.c:2661 dev_attr_show+0x60/0xcc drivers/base/core.c:2364 sysfs_kf_seq_show+0x2d0/0x43c fs/sysfs/file.c:59 kernfs_seq_show+0x150/0x1fc fs/kernfs/file.c:205 seq_read_iter+0x3e0/0xc44 fs/seq_file.c:230 kernfs_fop_read_iter+0x144/0x5c8 fs/kernfs/file.c:279 call_read_iter include/linux/fs.h:2259 [inline] new_sync_read fs/read_write.c:389 [inline] vfs_read+0x5bc/0x8b4 fs/read_write.c:470 ksys_read+0x15c/0x26c fs/read_write.c:613 __do_sys_read fs/read_write.c:623 [inline] __se_sys_read fs/read_write.c:621 [inline] __arm64_sys_read+0x7c/0x90 fs/read_write.c:621 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline] invoke_syscall+0x98/0x2c0 arch/arm64/kernel/syscall.c:52 el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:140 do_el0_svc+0x64/0x218 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 INFO: task kworker/1:4:4306 blocked for more than 143 seconds. Not tainted 6.1.103-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/1:4 state:D stack:0 pid:4306 ppid:2 flags:0x00000008 Workqueue: events rfkill_global_led_trigger_worker Call trace: __switch_to+0x320/0x754 arch/arm64/kernel/process.c:553 context_switch kernel/sched/core.c:5241 [inline] __schedule+0xef4/0x1d44 kernel/sched/core.c:6558 schedule+0xc4/0x170 kernel/sched/core.c:6634 schedule_preempt_disabled+0x18/0x2c kernel/sched/core.c:6693 __mutex_lock_common+0xbd8/0x21a0 kernel/locking/mutex.c:679 __mutex_lock kernel/locking/mutex.c:747 [inline] mutex_lock_nested+0x38/0x44 kernel/locking/mutex.c:799 rfkill_global_led_trigger_worker+0x30/0xe4 net/rfkill/core.c:181 process_one_work+0x7ac/0x1404 kernel/workqueue.c:2292 worker_thread+0x8e4/0xfec kernel/workqueue.c:2439 kthread+0x250/0x2d8 kernel/kthread.c:376 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:864 INFO: task syz.1.2244:10739 blocked for more than 143 seconds. Not tainted 6.1.103-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz.1.2244 state:D stack:0 pid:10739 ppid:7343 flags:0x00000009 Call trace: __switch_to+0x320/0x754 arch/arm64/kernel/process.c:553 context_switch kernel/sched/core.c:5241 [inline] __schedule+0xef4/0x1d44 kernel/sched/core.c:6558 schedule+0xc4/0x170 kernel/sched/core.c:6634 schedule_timeout+0xb8/0x344 kernel/time/timer.c:1941 do_wait_for_common+0x30c/0x468 kernel/sched/completion.c:85 __wait_for_common kernel/sched/completion.c:106 [inline] wait_for_common kernel/sched/completion.c:117 [inline] wait_for_completion+0x48/0x60 kernel/sched/completion.c:138 __flush_work+0x12c/0x1c0 kernel/workqueue.c:3076 __cancel_work_timer+0x3ec/0x548 kernel/workqueue.c:3163 cancel_work_sync+0x24/0x38 kernel/workqueue.c:3199 rfkill_unregister+0x8c/0x210 net/rfkill/core.c:1124 nfc_unregister_device+0x98/0x290 net/nfc/core.c:1167 nci_unregister_device+0x1dc/0x21c net/nfc/nci/core.c:1311 virtual_ncidev_close+0x70/0xb0 drivers/nfc/virtual_ncidev.c:170 __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 resume_user_mode_work include/linux/resume_user_mode.h:49 [inline] do_notify_resume+0x2148/0x3474 arch/arm64/kernel/signal.c:1132 prepare_exit_to_user_mode arch/arm64/kernel/entry-common.c:137 [inline] exit_to_user_mode arch/arm64/kernel/entry-common.c:142 [inline] el0_svc+0x9c/0x168 arch/arm64/kernel/entry-common.c:638 el0t_64_sync_handler+0x84/0xf0 arch/arm64/kernel/entry-common.c:655 el0t_64_sync+0x18c/0x190 arch/arm64/kernel/entry.S:585 Showing all locks held in the system: 1 lock held by rcu_tasks_kthre/12: #0: ffff800015b95030 (rcu_tasks.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x44/0xcf4 kernel/rcu/tasks.h:516 1 lock held by rcu_tasks_trace/13: #0: ffff800015b95830 (rcu_tasks_trace.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x44/0xcf4 kernel/rcu/tasks.h:516 1 lock held by khungtaskd/28: #0: ffff800015b94e60 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire+0xc/0x44 include/linux/rcupdate.h:349 4 locks held by kworker/1:2/111: #0: ffff0000c0020938 ((wq_completion)events){+.+.}-{0:0}, at: process_one_work+0x664/0x1404 kernel/workqueue.c:2265 #1: ffff80001dba7c20 ((work_completion)(&rfkill->sync_work)){+.+.}-{0:0}, at: process_one_work+0x6a8/0x1404 kernel/workqueue.c:2267 #2: ffff800018284828 (rfkill_global_mutex){+.+.}-{3:3}, at: rfkill_sync_work+0x34/0x104 net/rfkill/core.c:1040 #3: ffff0000d4d46100 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:837 [inline] #3: ffff0000d4d46100 (&dev->mutex){....}-{3:3}, at: nfc_dev_down net/nfc/core.c:143 [inline] #3: ffff0000d4d46100 (&dev->mutex){....}-{3:3}, at: nfc_rfkill_set_block+0x50/0x2d0 net/nfc/core.c:179 4 locks held by udevd/3910: #0: ffff0000c94eed58 (&p->lock){+.+.}-{3:3}, at: seq_read_iter+0xac/0xc44 fs/seq_file.c:182 #1: ffff0000eeef6088 (&of->mutex){+.+.}-{3:3}, at: kernfs_seq_start+0x58/0x384 fs/kernfs/file.c:154 #2: ffff0000c9684bd0 (kn->active#4){++++}-{0:0}, at: kernfs_seq_start+0x74/0x384 fs/kernfs/file.c:155 #3: ffff0000d4d46100 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:837 [inline] #3: ffff0000d4d46100 (&dev->mutex){....}-{3:3}, at: uevent_show+0x178/0x338 drivers/base/core.c:2661 2 locks held by getty/4050: #0: ffff0000d63c1098 (&tty->ldisc_sem){++++}-{0:0}, at: ldsem_down_read+0x3c/0x4c drivers/tty/tty_ldsem.c:340 #1: ffff80001be802f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x414/0x1214 drivers/tty/n_tty.c:2198 3 locks held by kworker/1:4/4306: #0: ffff0000c0020938 ((wq_completion)events){+.+.}-{0:0}, at: process_one_work+0x664/0x1404 kernel/workqueue.c:2265 #1: ffff80001e077c20 ((work_completion)(&rfkill_global_led_trigger_work)){+.+.}-{0:0}, at: process_one_work+0x6a8/0x1404 kernel/workqueue.c:2267 #2: ffff800018284828 (rfkill_global_mutex){+.+.}-{3:3}, at: rfkill_global_led_trigger_worker+0x30/0xe4 net/rfkill/core.c:181 1 lock held by syz.4.644/6143: #0: ffff800018284828 (rfkill_global_mutex){+.+.}-{3:3}, at: rfkill_unregister+0xb8/0x210 net/rfkill/core.c:1130 1 lock held by syz-executor/7573: #0: ffff800018284828 (rfkill_global_mutex){+.+.}-{3:3}, at: rfkill_unregister+0xb8/0x210 net/rfkill/core.c:1130 1 lock held by syz.1.2244/10739: #0: ffff0000d4d46100 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:837 [inline] #0: ffff0000d4d46100 (&dev->mutex){....}-{3:3}, at: nfc_unregister_device+0x6c/0x290 net/nfc/core.c:1165 1 lock held by syz.0.2353/11006: #0: ffff800018284828 (rfkill_global_mutex){+.+.}-{3:3}, at: rfkill_unregister+0xb8/0x210 net/rfkill/core.c:1130 2 locks held by syz-executor/11053: #0: ffff0000eefe6118 (&data->open_mutex){+.+.}-{3:3}, at: vhci_create_device+0x44/0x6d0 drivers/bluetooth/hci_vhci.c:378 #1: ffff800018284828 (rfkill_global_mutex){+.+.}-{3:3}, at: rfkill_register+0x44/0x7a4 net/rfkill/core.c:1057 2 locks held by syz-executor/11067: #0: ffff0000c3464118 (&data->open_mutex){+.+.}-{3:3}, at: vhci_create_device+0x44/0x6d0 drivers/bluetooth/hci_vhci.c:378 #1: ffff800018284828 (rfkill_global_mutex){+.+.}-{3:3}, at: rfkill_register+0x44/0x7a4 net/rfkill/core.c:1057 2 locks held by syz-executor/11068: #0: ffff0000dbd59918 (&data->open_mutex){+.+.}-{3:3}, at: vhci_create_device+0x44/0x6d0 drivers/bluetooth/hci_vhci.c:378 #1: ffff800018284828 (rfkill_global_mutex){+.+.}-{3:3}, at: rfkill_register+0x44/0x7a4 net/rfkill/core.c:1057 2 locks held by syz-executor/11073: #0: ffff0000f1066918 (&data->open_mutex){+.+.}-{3:3}, at: vhci_create_device+0x44/0x6d0 drivers/bluetooth/hci_vhci.c:378 #1: ffff800018284828 (rfkill_global_mutex){+.+.}-{3:3}, at: rfkill_register+0x44/0x7a4 net/rfkill/core.c:1057 1 lock held by syz.3.2383/11097: #0: ffff800018284828 (rfkill_global_mutex){+.+.}-{3:3}, at: rfkill_unregister+0xb8/0x210 net/rfkill/core.c:1130 2 locks held by syz-executor/11100: #0: ffff0000dafd2118 (&data->open_mutex){+.+.}-{3:3}, at: vhci_create_device+0x44/0x6d0 drivers/bluetooth/hci_vhci.c:378 #1: ffff800018284828 (rfkill_global_mutex){+.+.}-{3:3}, at: rfkill_register+0x44/0x7a4 net/rfkill/core.c:1057 2 locks held by syz-executor/11102: #0: ffff000101346118 (&data->open_mutex){+.+.}-{3:3}, at: vhci_create_device+0x44/0x6d0 drivers/bluetooth/hci_vhci.c:378 #1: ffff800018284828 (rfkill_global_mutex){+.+.}-{3:3}, at: rfkill_register+0x44/0x7a4 net/rfkill/core.c:1057 2 locks held by syz-executor/11105: #0: ffff0000d8c39918 (&data->open_mutex){+.+.}-{3:3}, at: vhci_create_device+0x44/0x6d0 drivers/bluetooth/hci_vhci.c:378 #1: ffff800018284828 (rfkill_global_mutex){+.+.}-{3:3}, at: rfkill_register+0x44/0x7a4 net/rfkill/core.c:1057 2 locks held by syz-executor/11106: #0: ffff0000c3039118 (&data->open_mutex){+.+.}-{3:3}, at: vhci_create_device+0x44/0x6d0 drivers/bluetooth/hci_vhci.c:378 #1: ffff800018284828 (rfkill_global_mutex){+.+.}-{3:3}, at: rfkill_register+0x44/0x7a4 net/rfkill/core.c:1057 2 locks held by syz-executor/11108: #0: ffff0000d9662118 (&data->open_mutex){+.+.}-{3:3}, at: vhci_create_device+0x44/0x6d0 drivers/bluetooth/hci_vhci.c:378 #1: ffff800018284828 (rfkill_global_mutex){+.+.}-{3:3}, at: rfkill_register+0x44/0x7a4 net/rfkill/core.c:1057 2 locks held by syz-executor/11110: #0: ffff0000f1280118 (&data->open_mutex){+.+.}-{3:3}, at: vhci_create_device+0x44/0x6d0 drivers/bluetooth/hci_vhci.c:378 #1: ffff800018284828 (rfkill_global_mutex){+.+.}-{3:3}, at: rfkill_register+0x44/0x7a4 net/rfkill/core.c:1057 2 locks held by syz-executor/11116: #0: ffff0000f0b8b118 (&data->open_mutex){+.+.}-{3:3}, at: vhci_create_device+0x44/0x6d0 drivers/bluetooth/hci_vhci.c:378 #1: ffff800018284828 (rfkill_global_mutex){+.+.}-{3:3}, at: rfkill_register+0x44/0x7a4 net/rfkill/core.c:1057 2 locks held by syz-executor/11119: #0: ffff0000d9af4118 (&data->open_mutex){+.+.}-{3:3}, at: vhci_create_device+0x44/0x6d0 drivers/bluetooth/hci_vhci.c:378 #1: ffff800018284828 (rfkill_global_mutex){+.+.}-{3:3}, at: rfkill_register+0x44/0x7a4 net/rfkill/core.c:1057 2 locks held by syz-executor/11120: #0: ffff0000d9af7918 (&data->open_mutex){+.+.}-{3:3}, at: vhci_create_device+0x44/0x6d0 drivers/bluetooth/hci_vhci.c:378 #1: ffff800018284828 (rfkill_global_mutex){+.+.}-{3:3}, at: rfkill_register+0x44/0x7a4 net/rfkill/core.c:1057 2 locks held by syz-executor/11122: #0: ffff0000da28a918 (&data->open_mutex){+.+.}-{3:3}, at: vhci_create_device+0x44/0x6d0 drivers/bluetooth/hci_vhci.c:378 #1: ffff800018284828 (rfkill_global_mutex){+.+.}-{3:3}, at: rfkill_register+0x44/0x7a4 net/rfkill/core.c:1057 2 locks held by syz-executor/11124: #0: ffff0000d9bc9118 (&data->open_mutex){+.+.}-{3:3}, at: vhci_create_device+0x44/0x6d0 drivers/bluetooth/hci_vhci.c:378 #1: ffff800018284828 (rfkill_global_mutex){+.+.}-{3:3}, at: rfkill_register+0x44/0x7a4 net/rfkill/core.c:1057 =============================================