INFO: task kworker/0:1:10 blocked for more than 143 seconds. Not tainted 6.16.0-rc2-syzkaller-g9aa9b43d689e #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 task_flags:0x4208060 flags:0x00000010 Workqueue: events rfkill_global_led_trigger_worker Call trace: __switch_to+0x414/0x834 arch/arm64/kernel/process.c:737 (T) context_switch kernel/sched/core.c:5396 [inline] __schedule+0x1414/0x2a28 kernel/sched/core.c:6785 __schedule_loop kernel/sched/core.c:6863 [inline] schedule+0xb4/0x230 kernel/sched/core.c:6878 schedule_preempt_disabled+0x18/0x2c kernel/sched/core.c:6935 __mutex_lock_common+0xbd0/0x2190 kernel/locking/mutex.c:679 __mutex_lock kernel/locking/mutex.c:747 [inline] mutex_lock_nested+0x2c/0x38 kernel/locking/mutex.c:799 rfkill_global_led_trigger_worker+0x30/0xe4 net/rfkill/core.c:182 process_one_work+0x7e8/0x155c kernel/workqueue.c:3238 process_scheduled_works kernel/workqueue.c:3321 [inline] worker_thread+0x958/0xed8 kernel/workqueue.c:3402 kthread+0x5fc/0x75c kernel/kthread.c:464 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:847 INFO: task syz.3.43:6803 blocked for more than 143 seconds. Not tainted 6.16.0-rc2-syzkaller-g9aa9b43d689e #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz.3.43 state:D stack:0 pid:6803 tgid:6803 ppid:6516 task_flags:0x400040 flags:0x00000011 Call trace: __switch_to+0x414/0x834 arch/arm64/kernel/process.c:737 (T) context_switch kernel/sched/core.c:5396 [inline] __schedule+0x1414/0x2a28 kernel/sched/core.c:6785 __schedule_loop kernel/sched/core.c:6863 [inline] schedule+0xb4/0x230 kernel/sched/core.c:6878 schedule_preempt_disabled+0x18/0x2c kernel/sched/core.c:6935 __mutex_lock_common+0xbd0/0x2190 kernel/locking/mutex.c:679 __mutex_lock kernel/locking/mutex.c:747 [inline] mutex_lock_nested+0x2c/0x38 kernel/locking/mutex.c:799 rfkill_unregister+0xb8/0x208 net/rfkill/core.c:1145 nfc_unregister_device+0x94/0x288 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+0x340/0x75c fs/file_table.c:465 ____fput+0x20/0x58 fs/file_table.c:493 task_work_run+0x1dc/0x260 kernel/task_work.c:227 resume_user_mode_work include/linux/resume_user_mode.h:50 [inline] do_notify_resume+0x16c/0x1ec 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+0xb4/0x17c arch/arm64/kernel/entry-common.c:768 el0t_64_sync_handler+0x78/0x108 arch/arm64/kernel/entry-common.c:786 el0t_64_sync+0x198/0x19c arch/arm64/kernel/entry.S:600 INFO: task syz.1.44:6816 blocked for more than 143 seconds. Not tainted 6.16.0-rc2-syzkaller-g9aa9b43d689e #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz.1.44 state:D stack:0 pid:6816 tgid:6815 ppid:6518 task_flags:0x400140 flags:0x00000019 Call trace: __switch_to+0x414/0x834 arch/arm64/kernel/process.c:737 (T) context_switch kernel/sched/core.c:5396 [inline] __schedule+0x1414/0x2a28 kernel/sched/core.c:6785 __schedule_loop kernel/sched/core.c:6863 [inline] schedule+0xb4/0x230 kernel/sched/core.c:6878 schedule_preempt_disabled+0x18/0x2c kernel/sched/core.c:6935 __mutex_lock_common+0xbd0/0x2190 kernel/locking/mutex.c:679 __mutex_lock kernel/locking/mutex.c:747 [inline] mutex_lock_nested+0x2c/0x38 kernel/locking/mutex.c:799 device_lock include/linux/device.h:884 [inline] nfc_dev_down net/nfc/core.c:143 [inline] nfc_rfkill_set_block+0x4c/0x2a8 net/nfc/core.c:179 rfkill_set_block+0x18c/0x374 net/rfkill/core.c:346 rfkill_fop_write+0x4e0/0x628 net/rfkill/core.c:1301 vfs_write+0x2a0/0x97c fs/read_write.c:684 ksys_write+0x120/0x210 fs/read_write.c:738 __do_sys_write fs/read_write.c:749 [inline] __se_sys_write fs/read_write.c:746 [inline] __arm64_sys_write+0x7c/0x90 fs/read_write.c:746 __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+0x58/0x17c arch/arm64/kernel/entry-common.c:767 el0t_64_sync_handler+0x78/0x108 arch/arm64/kernel/entry-common.c:786 el0t_64_sync+0x198/0x19c arch/arm64/kernel/entry.S:600 Showing all locks held in the system: 3 locks held by kworker/0:1/10: #0: ffff0000c0028d48 ((wq_completion)events){+.+.}-{0:0}, at: process_one_work+0x63c/0x155c kernel/workqueue.c:3212 #1: ffff800097a27bc0 ((work_completion)(&rfkill_global_led_trigger_work)){+.+.}-{0:0}, at: process_one_work+0x6d4/0x155c kernel/workqueue.c:3212 #2: ffff800092b4ed08 (rfkill_global_mutex){+.+.}-{4:4}, at: rfkill_global_led_trigger_worker+0x30/0xe4 net/rfkill/core.c:182 1 lock held by khungtaskd/32: #0: ffff80008f819e40 (rcu_read_lock){....}-{1:3}, at: rcu_lock_acquire+0x4/0x48 include/linux/rcupdate.h:330 2 locks held by pr/ttyAMA0/43: 2 locks held by getty/6285: #0: ffff0000d2b0e0a0 (&tty->ldisc_sem){++++}-{0:0}, at: ldsem_down_read+0x3c/0x4c drivers/tty/tty_ldsem.c:340 #1: ffff80009b9be2f0 (&ldata->atomic_read_lock){+.+.}-{4:4}, at: n_tty_read+0x34c/0xfa4 drivers/tty/n_tty.c:2222 2 locks held by syz.3.43/6803: #0: ffff0000d12c7100 (&dev->mutex){....}-{4:4}, at: device_lock include/linux/device.h:884 [inline] #0: ffff0000d12c7100 (&dev->mutex){....}-{4:4}, at: nfc_unregister_device+0x68/0x288 net/nfc/core.c:1165 #1: ffff800092b4ed08 (rfkill_global_mutex){+.+.}-{4:4}, at: rfkill_unregister+0xb8/0x208 net/rfkill/core.c:1145 2 locks held by syz.1.44/6816: #0: ffff800092b4ed08 (rfkill_global_mutex){+.+.}-{4:4}, at: rfkill_fop_write+0x274/0x628 net/rfkill/core.c:1293 #1: ffff0000d12c7100 (&dev->mutex){....}-{4:4}, at: device_lock include/linux/device.h:884 [inline] #1: ffff0000d12c7100 (&dev->mutex){....}-{4:4}, at: nfc_dev_down net/nfc/core.c:143 [inline] #1: ffff0000d12c7100 (&dev->mutex){....}-{4:4}, at: nfc_rfkill_set_block+0x4c/0x2a8 net/nfc/core.c:179 2 locks held by syz-executor/7196: #0: ffff0000c84ba918 (&data->open_mutex){+.+.}-{4:4}, at: vhci_create_device+0x3c/0x6d4 drivers/bluetooth/hci_vhci.c:470 #1: ffff800092b4ed08 (rfkill_global_mutex){+.+.}-{4:4}, at: rfkill_register+0x44/0x7ac net/rfkill/core.c:1071 2 locks held by syz-executor/7224: #0: ffff0000f5e14918 (&data->open_mutex){+.+.}-{4:4}, at: vhci_create_device+0x3c/0x6d4 drivers/bluetooth/hci_vhci.c:470 #1: ffff800092b4ed08 (rfkill_global_mutex){+.+.}-{4:4}, at: rfkill_register+0x44/0x7ac net/rfkill/core.c:1071 3 locks held by syz.4.202/7553: #0: ffff8000928d82b0 (cb_lock){++++}-{4:4}, at: genl_rcv+0x28/0x50 net/netlink/genetlink.c:1218 #1: ffff8000928d80c8 (genl_mutex){+.+.}-{4:4}, at: genl_lock net/netlink/genetlink.c:35 [inline] #1: ffff8000928d80c8 (genl_mutex){+.+.}-{4:4}, at: genl_op_lock net/netlink/genetlink.c:60 [inline] #1: ffff8000928d80c8 (genl_mutex){+.+.}-{4:4}, at: genl_rcv_msg+0xf4/0x624 net/netlink/genetlink.c:1209 #2: ffff800092b4ed08 (rfkill_global_mutex){+.+.}-{4:4}, at: rfkill_register+0x44/0x7ac net/rfkill/core.c:1071 2 locks held by syz.0.208/7590: #0: ffff8000928d82b0 (cb_lock){++++}-{4:4}, at: genl_rcv+0x28/0x50 net/netlink/genetlink.c:1218 #1: ffff8000928d80c8 (genl_mutex){+.+.}-{4:4}, at: genl_lock net/netlink/genetlink.c:35 [inline] #1: ffff8000928d80c8 (genl_mutex){+.+.}-{4:4}, at: genl_op_lock net/netlink/genetlink.c:60 [inline] #1: ffff8000928d80c8 (genl_mutex){+.+.}-{4:4}, at: genl_rcv_msg+0xf4/0x624 net/netlink/genetlink.c:1209 2 locks held by syz.2.219/7641: #0: ffff8000928d82b0 (cb_lock){++++}-{4:4}, at: genl_rcv+0x28/0x50 net/netlink/genetlink.c:1218 #1: ffff8000928d80c8 (genl_mutex){+.+.}-{4:4}, at: genl_lock net/netlink/genetlink.c:35 [inline] #1: ffff8000928d80c8 (genl_mutex){+.+.}-{4:4}, at: genl_op_lock net/netlink/genetlink.c:60 [inline] #1: ffff8000928d80c8 (genl_mutex){+.+.}-{4:4}, at: genl_rcv_msg+0xf4/0x624 net/netlink/genetlink.c:1209 2 locks held by syz-executor/7646: #0: ffff0000ceaf2118 (&data->open_mutex){+.+.}-{4:4}, at: vhci_create_device+0x3c/0x6d4 drivers/bluetooth/hci_vhci.c:470 #1: ffff800092b4ed08 (rfkill_global_mutex){+.+.}-{4:4}, at: rfkill_register+0x44/0x7ac net/rfkill/core.c:1071 2 locks held by syz-executor/7648: #0: ffff0000f30f9918 (&data->open_mutex){+.+.}-{4:4}, at: vhci_create_device+0x3c/0x6d4 drivers/bluetooth/hci_vhci.c:470 #1: ffff800092b4ed08 (rfkill_global_mutex){+.+.}-{4:4}, at: rfkill_register+0x44/0x7ac net/rfkill/core.c:1071 2 locks held by syz-executor/7651: #0: ffff0000d488d118 (&data->open_mutex){+.+.}-{4:4}, at: vhci_create_device+0x3c/0x6d4 drivers/bluetooth/hci_vhci.c:470 #1: ffff800092b4ed08 (rfkill_global_mutex){+.+.}-{4:4}, at: rfkill_register+0x44/0x7ac net/rfkill/core.c:1071 2 locks held by syz-executor/7653: #0: ffff0000ddfdd918 (&data->open_mutex){+.+.}-{4:4}, at: vhci_create_device+0x3c/0x6d4 drivers/bluetooth/hci_vhci.c:470 #1: ffff800092b4ed08 (rfkill_global_mutex){+.+.}-{4:4}, at: rfkill_register+0x44/0x7ac net/rfkill/core.c:1071 2 locks held by syz-executor/7656: #0: ffff0000ddfd9118 (&data->open_mutex){+.+.}-{4:4}, at: vhci_create_device+0x3c/0x6d4 drivers/bluetooth/hci_vhci.c:470 #1: ffff800092b4ed08 (rfkill_global_mutex){+.+.}-{4:4}, at: rfkill_register+0x44/0x7ac net/rfkill/core.c:1071 2 locks held by syz-executor/7663: #0: ffff0000cdcb9918 (&data->open_mutex){+.+.}-{4:4}, at: vhci_create_device+0x3c/0x6d4 drivers/bluetooth/hci_vhci.c:470 #1: ffff800092b4ed08 (rfkill_global_mutex){+.+.}-{4:4}, at: rfkill_register+0x44/0x7ac net/rfkill/core.c:1071 2 locks held by syz-executor/7665: #0: ffff0000d502c118 (&data->open_mutex){+.+.}-{4:4}, at: vhci_create_device+0x3c/0x6d4 drivers/bluetooth/hci_vhci.c:470 #1: ffff800092b4ed08 (rfkill_global_mutex){+.+.}-{4:4}, at: rfkill_register+0x44/0x7ac net/rfkill/core.c:1071 2 locks held by syz-executor/7668: #0: ffff0000d6f38118 (&data->open_mutex){+.+.}-{4:4}, at: vhci_create_device+0x3c/0x6d4 drivers/bluetooth/hci_vhci.c:470 #1: ffff800092b4ed08 (rfkill_global_mutex){+.+.}-{4:4}, at: rfkill_register+0x44/0x7ac net/rfkill/core.c:1071 2 locks held by syz-executor/7671: #0: ffff0000f0cbc118 (&data->open_mutex){+.+.}-{4:4}, at: vhci_create_device+0x3c/0x6d4 drivers/bluetooth/hci_vhci.c:470 #1: ffff800092b4ed08 (rfkill_global_mutex){+.+.}-{4:4}, at: rfkill_register+0x44/0x7ac net/rfkill/core.c:1071 2 locks held by syz-executor/7674: #0: ffff0000f30ff118 (&data->open_mutex){+.+.}-{4:4}, at: vhci_create_device+0x3c/0x6d4 drivers/bluetooth/hci_vhci.c:470 #1: ffff800092b4ed08 (rfkill_global_mutex){+.+.}-{4:4}, at: rfkill_register+0x44/0x7ac net/rfkill/core.c:1071 =============================================