INFO: task kworker/0:1:10 blocked for more than 143 seconds. Tainted: G W 6.13.0-rc6-syzkaller-g6251d1776bc5 #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/0:1 state:D stack:0 pid:10 tgid:10 ppid:2 flags:0x00000008 Workqueue: events rfkill_sync_work Call trace: __switch_to+0x414/0x788 arch/arm64/kernel/process.c:701 (T) context_switch kernel/sched/core.c:5369 [inline] __schedule+0x1744/0x27f0 kernel/sched/core.c:6756 __schedule_loop kernel/sched/core.c:6833 [inline] schedule+0xbc/0x238 kernel/sched/core.c:6848 schedule_preempt_disabled+0x18/0x2c kernel/sched/core.c:6905 __mutex_lock_common+0xeec/0x28f4 kernel/locking/mutex.c:665 __mutex_lock kernel/locking/mutex.c:735 [inline] mutex_lock_nested+0x2c/0x38 kernel/locking/mutex.c:787 device_lock include/linux/device.h:1014 [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:346 rfkill_sync net/rfkill/core.c:379 [inline] rfkill_sync_work+0x124/0x20c net/rfkill/core.c:1056 process_one_work+0x7a8/0x15cc kernel/workqueue.c:3229 process_scheduled_works kernel/workqueue.c:3310 [inline] worker_thread+0x97c/0xeec kernel/workqueue.c:3391 kthread+0x288/0x310 kernel/kthread.c:389 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:862 INFO: task kworker/0:2:3828 blocked for more than 143 seconds. Tainted: G W 6.13.0-rc6-syzkaller-g6251d1776bc5 #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/0:2 state:D stack:0 pid:3828 tgid:3828 ppid:2 flags:0x00000008 Workqueue: events rfkill_global_led_trigger_worker Call trace: __switch_to+0x414/0x788 arch/arm64/kernel/process.c:701 (T) context_switch kernel/sched/core.c:5369 [inline] __schedule+0x1744/0x27f0 kernel/sched/core.c:6756 __schedule_loop kernel/sched/core.c:6833 [inline] schedule+0xbc/0x238 kernel/sched/core.c:6848 schedule_preempt_disabled+0x18/0x2c kernel/sched/core.c:6905 __mutex_lock_common+0xeec/0x28f4 kernel/locking/mutex.c:665 __mutex_lock kernel/locking/mutex.c:735 [inline] mutex_lock_nested+0x2c/0x38 kernel/locking/mutex.c:787 rfkill_global_led_trigger_worker+0x30/0xe4 net/rfkill/core.c:182 process_one_work+0x7a8/0x15cc kernel/workqueue.c:3229 process_scheduled_works kernel/workqueue.c:3310 [inline] worker_thread+0x97c/0xeec kernel/workqueue.c:3391 kthread+0x288/0x310 kernel/kthread.c:389 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:862 INFO: task udevd:6033 blocked for more than 143 seconds. Tainted: G W 6.13.0-rc6-syzkaller-g6251d1776bc5 #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:udevd state:D stack:0 pid:6033 tgid:6033 ppid:1 flags:0x0000000c Call trace: __switch_to+0x414/0x788 arch/arm64/kernel/process.c:701 (T) context_switch kernel/sched/core.c:5369 [inline] __schedule+0x1744/0x27f0 kernel/sched/core.c:6756 __schedule_loop kernel/sched/core.c:6833 [inline] schedule+0xbc/0x238 kernel/sched/core.c:6848 schedule_preempt_disabled+0x18/0x2c kernel/sched/core.c:6905 __mutex_lock_common+0xeec/0x28f4 kernel/locking/mutex.c:665 __mutex_lock kernel/locking/mutex.c:735 [inline] mutex_lock_nested+0x2c/0x38 kernel/locking/mutex.c:787 device_lock include/linux/device.h:1014 [inline] uevent_show+0x17c/0x33c drivers/base/core.c:2729 dev_attr_show+0x60/0xcc drivers/base/core.c:2423 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 new_sync_read fs/read_write.c:484 [inline] vfs_read+0x740/0x970 fs/read_write.c:565 ksys_read+0x15c/0x26c fs/read_write.c:708 __do_sys_read fs/read_write.c:717 [inline] __se_sys_read fs/read_write.c:715 [inline] __arm64_sys_read+0x7c/0x90 fs/read_write.c:715 __invoke_syscall arch/arm64/kernel/syscall.c:35 [inline] invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:49 el0_svc_common+0x130/0x23c arch/arm64/kernel/syscall.c:132 do_el0_svc+0x48/0x58 arch/arm64/kernel/syscall.c:151 el0_svc+0x54/0x168 arch/arm64/kernel/entry-common.c:744 el0t_64_sync_handler+0x84/0x108 arch/arm64/kernel/entry-common.c:762 el0t_64_sync+0x198/0x19c arch/arm64/kernel/entry.S:600 INFO: task syz.1.469:8079 blocked for more than 143 seconds. Tainted: G W 6.13.0-rc6-syzkaller-g6251d1776bc5 #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz.1.469 state:D stack:0 pid:8079 tgid:8079 ppid:6417 flags:0x00000009 Call trace: __switch_to+0x414/0x788 arch/arm64/kernel/process.c:701 (T) context_switch kernel/sched/core.c:5369 [inline] __schedule+0x1744/0x27f0 kernel/sched/core.c:6756 __schedule_loop kernel/sched/core.c:6833 [inline] schedule+0xbc/0x238 kernel/sched/core.c:6848 schedule_timeout+0xb4/0x290 kernel/time/sleep_timeout.c:75 do_wait_for_common+0x30c/0x468 kernel/sched/completion.c:95 __wait_for_common kernel/sched/completion.c:116 [inline] wait_for_common kernel/sched/completion.c:127 [inline] wait_for_completion+0x48/0x60 kernel/sched/completion.c:148 __flush_work+0x798/0x958 kernel/workqueue.c:4235 __cancel_work_sync kernel/workqueue.c:4355 [inline] cancel_work_sync+0xc4/0x120 kernel/workqueue.c:4392 rfkill_unregister+0x8c/0x210 net/rfkill/core.c:1139 nfc_unregister_device+0x98/0x290 net/nfc/core.c:1167 nci_unregister_device+0x1dc/0x21c net/nfc/nci/core.c:1323 virtual_ncidev_close+0x5c/0xa0 drivers/nfc/virtual_ncidev.c:172 __fput+0x1bc/0x75c fs/file_table.c:450 ____fput+0x20/0x30 fs/file_table.c:478 task_work_run+0x230/0x2e0 kernel/task_work.c:239 resume_user_mode_work include/linux/resume_user_mode.h:50 [inline] do_notify_resume+0x178/0x1f4 arch/arm64/kernel/entry-common.c:151 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:745 el0t_64_sync_handler+0x84/0x108 arch/arm64/kernel/entry-common.c:762 el0t_64_sync+0x198/0x19c arch/arm64/kernel/entry.S:600 Showing all locks held in the system: 1 lock held by init/1: 4 locks held by kworker/0:1/10: #0: ffff0000c0028948 ((wq_completion)events){+.+.}-{0:0}, at: process_one_work+0x60c/0x15cc kernel/workqueue.c:3203 #1: ffff800097a67c20 ((work_completion)(&rfkill->sync_work)){+.+.}-{0:0}, at: process_one_work+0x6a4/0x15cc kernel/workqueue.c:3203 #2: ffff800092b983a8 (rfkill_global_mutex){+.+.}-{4:4}, at: rfkill_sync_work+0x30/0x20c net/rfkill/core.c:1055 #3: ffff0000c7e33100 (&dev->mutex){....}-{4:4}, at: device_lock include/linux/device.h:1014 [inline] #3: ffff0000c7e33100 (&dev->mutex){....}-{4:4}, at: nfc_dev_down net/nfc/core.c:143 [inline] #3: ffff0000c7e33100 (&dev->mutex){....}-{4:4}, at: nfc_rfkill_set_block+0x50/0x2d0 net/nfc/core.c:179 1 lock held by khungtaskd/31: #0: ffff80008fb83160 (rcu_read_lock){....}-{1:3}, at: rcu_lock_acquire+0xc/0x44 include/linux/rcupdate.h:336 3 locks held by kworker/0:2/3828: #0: ffff0000c0028948 ((wq_completion)events){+.+.}-{0:0}, at: process_one_work+0x60c/0x15cc kernel/workqueue.c:3203 #1: ffff8000a3087c20 ((work_completion)(&rfkill_global_led_trigger_work)){+.+.}-{0:0}, at: process_one_work+0x6a4/0x15cc kernel/workqueue.c:3203 #2: ffff800092b983a8 (rfkill_global_mutex){+.+.}-{4:4}, at: rfkill_global_led_trigger_worker+0x30/0xe4 net/rfkill/core.c:182 4 locks held by udevd/6033: #0: ffff0000c818d8b8 (&p->lock){+.+.}-{4:4}, at: seq_read_iter+0xac/0xc44 fs/seq_file.c:182 #1: ffff0000f00ff888 (&of->mutex#2){+.+.}-{4:4}, at: kernfs_seq_start+0x58/0x384 fs/kernfs/file.c:154 #2: ffff0000cfea62d8 (kn->active#4){.+.+}-{0:0}, at: kernfs_seq_start+0x74/0x384 fs/kernfs/file.c:155 #3: ffff0000c7e33100 (&dev->mutex){....}-{4:4}, at: device_lock include/linux/device.h:1014 [inline] #3: ffff0000c7e33100 (&dev->mutex){....}-{4:4}, at: uevent_show+0x17c/0x33c drivers/base/core.c:2729 2 locks held by getty/6185: #0: ffff0000d2cb70a0 (&tty->ldisc_sem){++++}-{0:0}, at: ldsem_down_read+0x3c/0x4c drivers/tty/tty_ldsem.c:340 #1: ffff80009ba1b2f0 (&ldata->atomic_read_lock){+.+.}-{4:4}, at: n_tty_read+0x41c/0x1228 drivers/tty/n_tty.c:2211 1 lock held by syz-executor/6417: #0: ffff800092b983a8 (rfkill_global_mutex){+.+.}-{4:4}, at: rfkill_unregister+0xb8/0x210 net/rfkill/core.c:1145 2 locks held by kworker/u8:9/6783: #0: ffff0000c42be948 ((wq_completion)iou_exit){+.+.}-{0:0}, at: process_one_work+0x60c/0x15cc kernel/workqueue.c:3203 #1: ffff8000a4517c20 ((work_completion)(&ctx->exit_work)){+.+.}-{0:0}, at: process_one_work+0x6a4/0x15cc kernel/workqueue.c:3203 1 lock held by syz.1.469/8079: #0: ffff0000c7e33100 (&dev->mutex){....}-{4:4}, at: device_lock include/linux/device.h:1014 [inline] #0: ffff0000c7e33100 (&dev->mutex){....}-{4:4}, at: nfc_unregister_device+0x6c/0x290 net/nfc/core.c:1165 2 locks held by syz-executor/8375: #0: ffff0000db861918 (&data->open_mutex){+.+.}-{4:4}, at: vhci_create_device+0x44/0x68c drivers/bluetooth/hci_vhci.c:469 #1: ffff800092b983a8 (rfkill_global_mutex){+.+.}-{4:4}, at: rfkill_register+0x44/0x7d4 net/rfkill/core.c:1071 3 locks held by syz.0.772/8932: #0: ffff800092931970 (cb_lock){++++}-{4:4}, at: genl_rcv+0x28/0x50 net/netlink/genetlink.c:1218 #1: ffff800092931828 (genl_mutex){+.+.}-{4:4}, at: genl_lock net/netlink/genetlink.c:35 [inline] #1: ffff800092931828 (genl_mutex){+.+.}-{4:4}, at: genl_op_lock net/netlink/genetlink.c:60 [inline] #1: ffff800092931828 (genl_mutex){+.+.}-{4:4}, at: genl_rcv_msg+0x10c/0xbb0 net/netlink/genetlink.c:1209 #2: ffff800092b983a8 (rfkill_global_mutex){+.+.}-{4:4}, at: rfkill_register+0x44/0x7d4 net/rfkill/core.c:1071 2 locks held by syz.2.777/8951: #0: ffff800092931970 (cb_lock){++++}-{4:4}, at: genl_rcv+0x28/0x50 net/netlink/genetlink.c:1218 #1: ffff800092931828 (genl_mutex){+.+.}-{4:4}, at: genl_lock net/netlink/genetlink.c:35 [inline] #1: ffff800092931828 (genl_mutex){+.+.}-{4:4}, at: genl_op_lock net/netlink/genetlink.c:60 [inline] #1: ffff800092931828 (genl_mutex){+.+.}-{4:4}, at: genl_rcv_msg+0x10c/0xbb0 net/netlink/genetlink.c:1209 2 locks held by syz.2.777/8952: #0: ffff800092931970 (cb_lock){++++}-{4:4}, at: genl_rcv+0x28/0x50 net/netlink/genetlink.c:1218 #1: ffff800092931828 (genl_mutex){+.+.}-{4:4}, at: genl_lock net/netlink/genetlink.c:35 [inline] #1: ffff800092931828 (genl_mutex){+.+.}-{4:4}, at: genl_op_lock net/netlink/genetlink.c:60 [inline] #1: ffff800092931828 (genl_mutex){+.+.}-{4:4}, at: genl_rcv_msg+0x10c/0xbb0 net/netlink/genetlink.c:1209 2 locks held by syz.3.782/8966: #0: ffff800092931970 (cb_lock){++++}-{4:4}, at: genl_rcv+0x28/0x50 net/netlink/genetlink.c:1218 #1: ffff800092931828 (genl_mutex){+.+.}-{4:4}, at: genl_lock net/netlink/genetlink.c:35 [inline] #1: ffff800092931828 (genl_mutex){+.+.}-{4:4}, at: genl_op_lock net/netlink/genetlink.c:60 [inline] #1: ffff800092931828 (genl_mutex){+.+.}-{4:4}, at: genl_rcv_msg+0x10c/0xbb0 net/netlink/genetlink.c:1209 2 locks held by syz.4.786/8979: #0: ffff800092931970 (cb_lock){++++}-{4:4}, at: genl_rcv+0x28/0x50 net/netlink/genetlink.c:1218 #1: ffff800092931828 (genl_mutex){+.+.}-{4:4}, at: genl_lock net/netlink/genetlink.c:35 [inline] #1: ffff800092931828 (genl_mutex){+.+.}-{4:4}, at: genl_op_lock net/netlink/genetlink.c:60 [inline] #1: ffff800092931828 (genl_mutex){+.+.}-{4:4}, at: genl_rcv_msg+0x10c/0xbb0 net/netlink/genetlink.c:1209 2 locks held by syz-executor/8982: #0: ffff0000f1480918 (&data->open_mutex){+.+.}-{4:4}, at: vhci_create_device+0x44/0x68c drivers/bluetooth/hci_vhci.c:469 #1: ffff800092b983a8 (rfkill_global_mutex){+.+.}-{4:4}, at: rfkill_register+0x44/0x7d4 net/rfkill/core.c:1071 2 locks held by syz-executor/8985: #0: ffff0000cb06a918 (&data->open_mutex){+.+.}-{4:4}, at: vhci_create_device+0x44/0x68c drivers/bluetooth/hci_vhci.c:469 #1: ffff800092b983a8 (rfkill_global_mutex){+.+.}-{4:4}, at: rfkill_register+0x44/0x7d4 net/rfkill/core.c:1071 2 locks held by syz-executor/8986: #0: ffff0000dc7be118 (&data->open_mutex){+.+.}-{4:4}, at: vhci_create_device+0x44/0x68c drivers/bluetooth/hci_vhci.c:469 #1: ffff800092b983a8 (rfkill_global_mutex){+.+.}-{4:4}, at: rfkill_register+0x44/0x7d4 net/rfkill/core.c:1071 2 locks held by syz-executor/8988: #0: ffff0000cedb7118 (&data->open_mutex){+.+.}-{4:4}, at: vhci_create_device+0x44/0x68c drivers/bluetooth/hci_vhci.c:469 #1: ffff800092b983a8 (rfkill_global_mutex){+.+.}-{4:4}, at: rfkill_register+0x44/0x7d4 net/rfkill/core.c:1071 2 locks held by syz-executor/8990: #0: ffff0000ee13b118 (&data->open_mutex){+.+.}-{4:4}, at: vhci_create_device+0x44/0x68c drivers/bluetooth/hci_vhci.c:469 #1: ffff800092b983a8 (rfkill_global_mutex){+.+.}-{4:4}, at: rfkill_register+0x44/0x7d4 net/rfkill/core.c:1071 2 locks held by syz-executor/8993: #0: ffff0000f0656918 (&data->open_mutex){+.+.}-{4:4}, at: vhci_create_device+0x44/0x68c drivers/bluetooth/hci_vhci.c:469 #1: ffff800092b983a8 (rfkill_global_mutex){+.+.}-{4:4}, at: rfkill_register+0x44/0x7d4 net/rfkill/core.c:1071 2 locks held by syz-executor/8996: #0: ffff0000f056a118 (&data->open_mutex){+.+.}-{4:4}, at: vhci_create_device+0x44/0x68c drivers/bluetooth/hci_vhci.c:469 #1: ffff800092b983a8 (rfkill_global_mutex){+.+.}-{4:4}, at: rfkill_register+0x44/0x7d4 net/rfkill/core.c:1071 2 locks held by syz-executor/8997: #0: ffff0000f056e118 (&data->open_mutex){+.+.}-{4:4}, at: vhci_create_device+0x44/0x68c drivers/bluetooth/hci_vhci.c:469 #1: ffff800092b983a8 (rfkill_global_mutex){+.+.}-{4:4}, at: rfkill_register+0x44/0x7d4 net/rfkill/core.c:1071 2 locks held by syz-executor/8999: #0: ffff0000c9b37918 (&data->open_mutex){+.+.}-{4:4}, at: vhci_create_device+0x44/0x68c drivers/bluetooth/hci_vhci.c:469 #1: ffff800092b983a8 (rfkill_global_mutex){+.+.}-{4:4}, at: rfkill_register+0x44/0x7d4 net/rfkill/core.c:1071 2 locks held by syz-executor/9001: #0: ffff0000ce6af918 (&data->open_mutex){+.+.}-{4:4}, at: vhci_create_device+0x44/0x68c drivers/bluetooth/hci_vhci.c:469 #1: ffff800092b983a8 (rfkill_global_mutex){+.+.}-{4:4}, at: rfkill_register+0x44/0x7d4 net/rfkill/core.c:1071 =============================================