INFO: task kworker/u8:5:240 blocked for more than 143 seconds. Tainted: G L syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/u8:5 state:D stack:0 pid:240 tgid:240 ppid:2 task_flags:0x4208060 flags:0x00000010 Workqueue: netns cleanup_net Call trace: __switch_to+0x418/0x87c arch/arm64/kernel/process.c:741 (T) context_switch kernel/sched/core.c:5256 [inline] __schedule+0x1250/0x2a7c kernel/sched/core.c:6863 __schedule_loop kernel/sched/core.c:6945 [inline] schedule+0xb4/0x230 kernel/sched/core.c:6960 schedule_preempt_disabled+0x18/0x2c kernel/sched/core.c:7017 __mutex_lock_common+0xd04/0x2678 kernel/locking/mutex.c:692 __mutex_lock kernel/locking/mutex.c:776 [inline] mutex_lock_nested+0x2c/0x38 kernel/locking/mutex.c:828 rfkill_unregister+0xb8/0x208 net/rfkill/core.c:1145 wiphy_unregister+0x1f0/0x998 net/wireless/core.c:1178 ieee80211_unregister_hw+0x1b8/0x29c net/mac80211/main.c:1703 mac80211_hwsim_del_radio+0x214/0x3b4 drivers/net/wireless/virtual/mac80211_hwsim.c:5916 hwsim_exit_net+0xd1c/0xdd8 drivers/net/wireless/virtual/mac80211_hwsim.c:6807 ops_exit_list net/core/net_namespace.c:199 [inline] ops_undo_list+0x3c0/0x7ec net/core/net_namespace.c:252 cleanup_net+0x3fc/0x638 net/core/net_namespace.c:696 process_one_work+0x7c0/0x1558 kernel/workqueue.c:3257 process_scheduled_works kernel/workqueue.c:3340 [inline] worker_thread+0x958/0xed8 kernel/workqueue.c:3421 kthread+0x5fc/0x75c kernel/kthread.c:463 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:844 INFO: task udevd:6557 blocked for more than 143 seconds. Tainted: G L syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:udevd state:D stack:0 pid:6557 tgid:6557 ppid:6206 task_flags:0x400140 flags:0x00800000 Call trace: __switch_to+0x418/0x87c arch/arm64/kernel/process.c:741 (T) context_switch kernel/sched/core.c:5256 [inline] __schedule+0x1250/0x2a7c kernel/sched/core.c:6863 __schedule_loop kernel/sched/core.c:6945 [inline] schedule+0xb4/0x230 kernel/sched/core.c:6960 schedule_preempt_disabled+0x18/0x2c kernel/sched/core.c:7017 __mutex_lock_common+0xd04/0x2678 kernel/locking/mutex.c:692 __mutex_lock kernel/locking/mutex.c:776 [inline] mutex_lock_nested+0x2c/0x38 kernel/locking/mutex.c:828 misc_open+0x68/0x33c drivers/char/misc.c:125 chrdev_open+0x1b0/0x4b0 fs/char_dev.c:414 do_dentry_open+0x68c/0x1154 fs/open.c:962 vfs_open+0x44/0x2d4 fs/open.c:1094 do_open fs/namei.c:4628 [inline] path_openat+0x2890/0x3114 fs/namei.c:4787 do_filp_open+0x18c/0x36c fs/namei.c:4814 do_sys_openat2+0x11c/0x1f0 fs/open.c:1430 do_sys_open fs/open.c:1436 [inline] __do_sys_openat fs/open.c:1452 [inline] __se_sys_openat fs/open.c:1447 [inline] __arm64_sys_openat+0x120/0x158 fs/open.c:1447 __invoke_syscall arch/arm64/kernel/syscall.c:35 [inline] invoke_syscall+0x98/0x254 arch/arm64/kernel/syscall.c:49 el0_svc_common+0xe8/0x23c arch/arm64/kernel/syscall.c:132 do_el0_svc+0x48/0x58 arch/arm64/kernel/syscall.c:151 el0_svc+0x5c/0x26c arch/arm64/kernel/entry-common.c:724 el0t_64_sync_handler+0x84/0x12c arch/arm64/kernel/entry-common.c:743 el0t_64_sync+0x198/0x19c arch/arm64/kernel/entry.S:596 INFO: task kworker/0:7:6669 blocked for more than 143 seconds. Tainted: G L syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/0:7 state:D stack:0 pid:6669 tgid:6669 ppid:2 task_flags:0x4208060 flags:0x00000010 Workqueue: events rfkill_sync_work Call trace: __switch_to+0x418/0x87c arch/arm64/kernel/process.c:741 (T) context_switch kernel/sched/core.c:5256 [inline] __schedule+0x1250/0x2a7c kernel/sched/core.c:6863 __schedule_loop kernel/sched/core.c:6945 [inline] schedule+0xb4/0x230 kernel/sched/core.c:6960 schedule_preempt_disabled+0x18/0x2c kernel/sched/core.c:7017 __mutex_lock_common+0xd04/0x2678 kernel/locking/mutex.c:692 __mutex_lock kernel/locking/mutex.c:776 [inline] mutex_lock_nested+0x2c/0x38 kernel/locking/mutex.c:828 device_lock include/linux/device.h:895 [inline] nfc_dev_down+0x3c/0x258 net/nfc/core.c:143 nfc_rfkill_set_block+0x38/0xfc net/nfc/core.c:179 rfkill_set_block+0x18c/0x374 net/rfkill/core.c:346 rfkill_sync net/rfkill/core.c:379 [inline] rfkill_sync_work+0x100/0x1e8 net/rfkill/core.c:1056 process_one_work+0x7c0/0x1558 kernel/workqueue.c:3257 process_scheduled_works kernel/workqueue.c:3340 [inline] worker_thread+0x958/0xed8 kernel/workqueue.c:3421 kthread+0x5fc/0x75c kernel/kthread.c:463 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:844 INFO: task udevd:6826 blocked for more than 143 seconds. Tainted: G L syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:udevd state:D stack:0 pid:6826 tgid:6826 ppid:6206 task_flags:0x400140 flags:0x00800010 Call trace: __switch_to+0x418/0x87c arch/arm64/kernel/process.c:741 (T) context_switch kernel/sched/core.c:5256 [inline] __schedule+0x1250/0x2a7c kernel/sched/core.c:6863 __schedule_loop kernel/sched/core.c:6945 [inline] schedule+0xb4/0x230 kernel/sched/core.c:6960 schedule_preempt_disabled+0x18/0x2c kernel/sched/core.c:7017 __mutex_lock_common+0xd04/0x2678 kernel/locking/mutex.c:692 __mutex_lock kernel/locking/mutex.c:776 [inline] mutex_lock_nested+0x2c/0x38 kernel/locking/mutex.c:828 misc_open+0x68/0x33c drivers/char/misc.c:125 chrdev_open+0x1b0/0x4b0 fs/char_dev.c:414 do_dentry_open+0x68c/0x1154 fs/open.c:962 vfs_open+0x44/0x2d4 fs/open.c:1094 do_open fs/namei.c:4628 [inline] path_openat+0x2890/0x3114 fs/namei.c:4787 do_filp_open+0x18c/0x36c fs/namei.c:4814 do_sys_openat2+0x11c/0x1f0 fs/open.c:1430 do_sys_open fs/open.c:1436 [inline] __do_sys_openat fs/open.c:1452 [inline] __se_sys_openat fs/open.c:1447 [inline] __arm64_sys_openat+0x120/0x158 fs/open.c:1447 __invoke_syscall arch/arm64/kernel/syscall.c:35 [inline] invoke_syscall+0x98/0x254 arch/arm64/kernel/syscall.c:49 el0_svc_common+0xe8/0x23c arch/arm64/kernel/syscall.c:132 do_el0_svc+0x48/0x58 arch/arm64/kernel/syscall.c:151 el0_svc+0x5c/0x26c arch/arm64/kernel/entry-common.c:724 el0t_64_sync_handler+0x84/0x12c arch/arm64/kernel/entry-common.c:743 el0t_64_sync+0x198/0x19c arch/arm64/kernel/entry.S:596 INFO: task udevd:7715 blocked for more than 143 seconds. Tainted: G L syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:udevd state:D stack:0 pid:7715 tgid:7715 ppid:6206 task_flags:0x400140 flags:0x00800000 Call trace: __switch_to+0x418/0x87c arch/arm64/kernel/process.c:741 (T) context_switch kernel/sched/core.c:5256 [inline] __schedule+0x1250/0x2a7c kernel/sched/core.c:6863 __schedule_loop kernel/sched/core.c:6945 [inline] schedule+0xb4/0x230 kernel/sched/core.c:6960 schedule_preempt_disabled+0x18/0x2c kernel/sched/core.c:7017 __mutex_lock_common+0xd04/0x2678 kernel/locking/mutex.c:692 __mutex_lock kernel/locking/mutex.c:776 [inline] mutex_lock_nested+0x2c/0x38 kernel/locking/mutex.c:828 misc_open+0x68/0x33c drivers/char/misc.c:125 chrdev_open+0x1b0/0x4b0 fs/char_dev.c:414 do_dentry_open+0x68c/0x1154 fs/open.c:962 vfs_open+0x44/0x2d4 fs/open.c:1094 do_open fs/namei.c:4628 [inline] path_openat+0x2890/0x3114 fs/namei.c:4787 do_filp_open+0x18c/0x36c fs/namei.c:4814 do_sys_openat2+0x11c/0x1f0 fs/open.c:1430 do_sys_open fs/open.c:1436 [inline] __do_sys_openat fs/open.c:1452 [inline] __se_sys_openat fs/open.c:1447 [inline] __arm64_sys_openat+0x120/0x158 fs/open.c:1447 __invoke_syscall arch/arm64/kernel/syscall.c:35 [inline] invoke_syscall+0x98/0x254 arch/arm64/kernel/syscall.c:49 el0_svc_common+0xe8/0x23c arch/arm64/kernel/syscall.c:132 do_el0_svc+0x48/0x58 arch/arm64/kernel/syscall.c:151 el0_svc+0x5c/0x26c arch/arm64/kernel/entry-common.c:724 el0t_64_sync_handler+0x84/0x12c arch/arm64/kernel/entry-common.c:743 el0t_64_sync+0x198/0x19c arch/arm64/kernel/entry.S:596 INFO: task syz-executor:9395 blocked for more than 143 seconds. Tainted: G L syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor state:D stack:0 pid:9395 tgid:9395 ppid:1 task_flags:0x400140 flags:0x00000000 Call trace: __switch_to+0x418/0x87c arch/arm64/kernel/process.c:741 (T) context_switch kernel/sched/core.c:5256 [inline] __schedule+0x1250/0x2a7c kernel/sched/core.c:6863 __schedule_loop kernel/sched/core.c:6945 [inline] schedule+0xb4/0x230 kernel/sched/core.c:6960 schedule_preempt_disabled+0x18/0x2c kernel/sched/core.c:7017 __mutex_lock_common+0xd04/0x2678 kernel/locking/mutex.c:692 __mutex_lock kernel/locking/mutex.c:776 [inline] mutex_lock_nested+0x2c/0x38 kernel/locking/mutex.c:828 rfkill_fop_open+0x110/0x744 net/rfkill/core.c:1178 misc_open+0x2d0/0x33c drivers/char/misc.c:163 chrdev_open+0x1b0/0x4b0 fs/char_dev.c:414 do_dentry_open+0x68c/0x1154 fs/open.c:962 vfs_open+0x44/0x2d4 fs/open.c:1094 do_open fs/namei.c:4628 [inline] path_openat+0x2890/0x3114 fs/namei.c:4787 do_filp_open+0x18c/0x36c fs/namei.c:4814 do_sys_openat2+0x11c/0x1f0 fs/open.c:1430 do_sys_open fs/open.c:1436 [inline] __do_sys_openat fs/open.c:1452 [inline] __se_sys_openat fs/open.c:1447 [inline] __arm64_sys_openat+0x120/0x158 fs/open.c:1447 __invoke_syscall arch/arm64/kernel/syscall.c:35 [inline] invoke_syscall+0x98/0x254 arch/arm64/kernel/syscall.c:49 el0_svc_common+0xe8/0x23c arch/arm64/kernel/syscall.c:132 do_el0_svc+0x48/0x58 arch/arm64/kernel/syscall.c:151 el0_svc+0x5c/0x26c arch/arm64/kernel/entry-common.c:724 el0t_64_sync_handler+0x84/0x12c arch/arm64/kernel/entry-common.c:743 el0t_64_sync+0x198/0x19c arch/arm64/kernel/entry.S:596 INFO: task syz.2.566:9481 blocked for more than 143 seconds. Tainted: G L syzkaller #0 Blocked by coredump. "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz.2.566 state:D stack:0 pid:9481 tgid:9479 ppid:6565 task_flags:0x40054c flags:0x00000018 Call trace: __switch_to+0x418/0x87c arch/arm64/kernel/process.c:741 (T) context_switch kernel/sched/core.c:5256 [inline] __schedule+0x1250/0x2a7c kernel/sched/core.c:6863 __schedule_loop kernel/sched/core.c:6945 [inline] schedule+0xb4/0x230 kernel/sched/core.c:6960 schedule_timeout+0xac/0x270 kernel/time/sleep_timeout.c:75 do_wait_for_common+0x288/0x3f8 kernel/sched/completion.c:100 __wait_for_common kernel/sched/completion.c:121 [inline] wait_for_common kernel/sched/completion.c:132 [inline] wait_for_completion+0x44/0x5c kernel/sched/completion.c:153 __flush_work+0x714/0x8c0 kernel/workqueue.c:4277 __cancel_work_sync kernel/workqueue.c:4397 [inline] cancel_work_sync+0xc4/0x120 kernel/workqueue.c:4434 rfkill_unregister+0x8c/0x208 net/rfkill/core.c:1139 nfc_unregister_device+0x94/0x2d8 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:468 ____fput+0x20/0x58 fs/file_table.c:496 task_work_run+0x1dc/0x260 kernel/task_work.c:233 exit_task_work include/linux/task_work.h:40 [inline] do_exit+0x52c/0x1a1c kernel/exit.c:971 do_group_exit+0x194/0x22c kernel/exit.c:1112 get_signal+0x11dc/0x12f8 kernel/signal.c:3034 arch_do_signal_or_restart+0x268/0x46d4 arch/arm64/kernel/signal.c:1619 __exit_to_user_mode_loop kernel/entry/common.c:41 [inline] exit_to_user_mode_loop+0x88/0x18c kernel/entry/common.c:75 __exit_to_user_mode_prepare include/linux/irq-entry-common.h:226 [inline] exit_to_user_mode_prepare_legacy include/linux/irq-entry-common.h:242 [inline] arm64_exit_to_user_mode arch/arm64/kernel/entry-common.c:81 [inline] el0_svc+0x17c/0x26c arch/arm64/kernel/entry-common.c:725 el0t_64_sync_handler+0x84/0x12c arch/arm64/kernel/entry-common.c:743 el0t_64_sync+0x198/0x19c arch/arm64/kernel/entry.S:596 INFO: task syz.0.582:9686 blocked for more than 143 seconds. Tainted: G L syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz.0.582 state:D stack:0 pid:9686 tgid:9685 ppid:6571 task_flags:0x400040 flags:0x00000001 Call trace: __switch_to+0x418/0x87c arch/arm64/kernel/process.c:741 (T) context_switch kernel/sched/core.c:5256 [inline] __schedule+0x1250/0x2a7c kernel/sched/core.c:6863 __schedule_loop kernel/sched/core.c:6945 [inline] schedule+0xb4/0x230 kernel/sched/core.c:6960 schedule_preempt_disabled+0x18/0x2c kernel/sched/core.c:7017 __mutex_lock_common+0xd04/0x2678 kernel/locking/mutex.c:692 __mutex_lock kernel/locking/mutex.c:776 [inline] mutex_lock_nested+0x2c/0x38 kernel/locking/mutex.c:828 misc_open+0x68/0x33c drivers/char/misc.c:125 chrdev_open+0x1b0/0x4b0 fs/char_dev.c:414 do_dentry_open+0x68c/0x1154 fs/open.c:962 vfs_open+0x44/0x2d4 fs/open.c:1094 do_open fs/namei.c:4628 [inline] path_openat+0x2890/0x3114 fs/namei.c:4787 do_filp_open+0x18c/0x36c fs/namei.c:4814 do_sys_openat2+0x11c/0x1f0 fs/open.c:1430 do_sys_open fs/open.c:1436 [inline] __do_sys_openat fs/open.c:1452 [inline] __se_sys_openat fs/open.c:1447 [inline] __arm64_sys_openat+0x120/0x158 fs/open.c:1447 __invoke_syscall arch/arm64/kernel/syscall.c:35 [inline] invoke_syscall+0x98/0x254 arch/arm64/kernel/syscall.c:49 el0_svc_common+0xe8/0x23c arch/arm64/kernel/syscall.c:132 do_el0_svc+0x48/0x58 arch/arm64/kernel/syscall.c:151 el0_svc+0x5c/0x26c arch/arm64/kernel/entry-common.c:724 el0t_64_sync_handler+0x84/0x12c arch/arm64/kernel/entry-common.c:743 el0t_64_sync+0x198/0x19c arch/arm64/kernel/entry.S:596 INFO: task syz.0.582:9690 blocked for more than 143 seconds. Tainted: G L syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz.0.582 state:D stack:0 pid:9690 tgid:9685 ppid:6571 task_flags:0x400140 flags:0x00000001 Call trace: __switch_to+0x418/0x87c arch/arm64/kernel/process.c:741 (T) context_switch kernel/sched/core.c:5256 [inline] __schedule+0x1250/0x2a7c kernel/sched/core.c:6863 __schedule_loop kernel/sched/core.c:6945 [inline] schedule+0xb4/0x230 kernel/sched/core.c:6960 schedule_preempt_disabled+0x18/0x2c kernel/sched/core.c:7017 __mutex_lock_common+0xd04/0x2678 kernel/locking/mutex.c:692 __mutex_lock kernel/locking/mutex.c:776 [inline] mutex_lock_nested+0x2c/0x38 kernel/locking/mutex.c:828 misc_open+0x68/0x33c drivers/char/misc.c:125 chrdev_open+0x1b0/0x4b0 fs/char_dev.c:414 do_dentry_open+0x68c/0x1154 fs/open.c:962 vfs_open+0x44/0x2d4 fs/open.c:1094 do_open fs/namei.c:4628 [inline] path_openat+0x2890/0x3114 fs/namei.c:4787 do_filp_open+0x18c/0x36c fs/namei.c:4814 do_sys_openat2+0x11c/0x1f0 fs/open.c:1430 do_sys_open fs/open.c:1436 [inline] __do_sys_openat fs/open.c:1452 [inline] __se_sys_openat fs/open.c:1447 [inline] __arm64_sys_openat+0x120/0x158 fs/open.c:1447 __invoke_syscall arch/arm64/kernel/syscall.c:35 [inline] invoke_syscall+0x98/0x254 arch/arm64/kernel/syscall.c:49 el0_svc_common+0xe8/0x23c arch/arm64/kernel/syscall.c:132 do_el0_svc+0x48/0x58 arch/arm64/kernel/syscall.c:151 el0_svc+0x5c/0x26c arch/arm64/kernel/entry-common.c:724 el0t_64_sync_handler+0x84/0x12c arch/arm64/kernel/entry-common.c:743 el0t_64_sync+0x198/0x19c arch/arm64/kernel/entry.S:596 INFO: task syz.1.600:9778 blocked for more than 143 seconds. Tainted: G L syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz.1.600 state:D stack:0 pid:9778 tgid:9777 ppid:6566 task_flags:0x400040 flags:0x00000001 Call trace: __switch_to+0x418/0x87c arch/arm64/kernel/process.c:741 (T) context_switch kernel/sched/core.c:5256 [inline] __schedule+0x1250/0x2a7c kernel/sched/core.c:6863 __schedule_loop kernel/sched/core.c:6945 [inline] schedule+0xb4/0x230 kernel/sched/core.c:6960 schedule_preempt_disabled+0x18/0x2c kernel/sched/core.c:7017 __mutex_lock_common+0xd04/0x2678 kernel/locking/mutex.c:692 __mutex_lock kernel/locking/mutex.c:776 [inline] mutex_lock_nested+0x2c/0x38 kernel/locking/mutex.c:828 misc_open+0x68/0x33c drivers/char/misc.c:125 chrdev_open+0x1b0/0x4b0 fs/char_dev.c:414 do_dentry_open+0x68c/0x1154 fs/open.c:962 vfs_open+0x44/0x2d4 fs/open.c:1094 do_open fs/namei.c:4628 [inline] path_openat+0x2890/0x3114 fs/namei.c:4787 do_filp_open+0x18c/0x36c fs/namei.c:4814 do_sys_openat2+0x11c/0x1f0 fs/open.c:1430 do_sys_open fs/open.c:1436 [inline] __do_sys_openat fs/open.c:1452 [inline] __se_sys_openat fs/open.c:1447 [inline] __arm64_sys_openat+0x120/0x158 fs/open.c:1447 __invoke_syscall arch/arm64/kernel/syscall.c:35 [inline] invoke_syscall+0x98/0x254 arch/arm64/kernel/syscall.c:49 el0_svc_common+0xe8/0x23c arch/arm64/kernel/syscall.c:132 do_el0_svc+0x48/0x58 arch/arm64/kernel/syscall.c:151 el0_svc+0x5c/0x26c arch/arm64/kernel/entry-common.c:724 el0t_64_sync_handler+0x84/0x12c arch/arm64/kernel/entry-common.c:743 el0t_64_sync+0x198/0x19c arch/arm64/kernel/entry.S:596 Future hung task reports are suppressed, see sysctl kernel.hung_task_warnings Showing all locks held in the system: 1 lock held by khungtaskd/32: #0: ffff80008fa5b520 (rcu_read_lock){....}-{1:3}, at: rcu_lock_acquire+0x4/0x48 include/linux/rcupdate.h:330 2 locks held by pr/ttyAMA-1/43: 4 locks held by kworker/u8:5/240: #0: ffff0000c1843148 ((wq_completion)netns){+.+.}-{0:0}, at: process_one_work+0x63c/0x1558 kernel/workqueue.c:3231 #1: ffff80009c0e7be0 (net_cleanup_work){+.+.}-{0:0}, at: process_one_work+0x6d0/0x1558 kernel/workqueue.c:3231 #2: ffff800092ad71f0 (pernet_ops_rwsem){++++}-{4:4}, at: cleanup_net+0xf0/0x638 net/core/net_namespace.c:670 #3: ffff800092dc6688 (rfkill_global_mutex){+.+.}-{4:4}, at: rfkill_unregister+0xb8/0x208 net/rfkill/core.c:1145 2 locks held by getty/6347: #0: ffff0000d5cac0a0 (&tty->ldisc_sem){++++}-{0:0}, at: ldsem_down_read+0x3c/0x4c drivers/tty/tty_ldsem.c:340 #1: ffff800099f1e2f0 (&ldata->atomic_read_lock){+.+.}-{4:4}, at: n_tty_read+0x34c/0xfc8 drivers/tty/n_tty.c:2211 1 lock held by udevd/6557: #0: ffff8000914f3808 (misc_mtx){+.+.}-{4:4}, at: misc_open+0x68/0x33c drivers/char/misc.c:125 1 lock held by syz-executor/6565: #0: ffff800092dc6688 (rfkill_global_mutex){+.+.}-{4:4}, at: rfkill_unregister+0xb8/0x208 net/rfkill/core.c:1145 4 locks held by kworker/0:7/6669: #0: ffff0000c0029948 ((wq_completion)events){+.+.}-{0:0}, at: process_one_work+0x63c/0x1558 kernel/workqueue.c:3231 #1: ffff8000a48c7be0 ((work_completion)(&rfkill->sync_work)){+.+.}-{0:0}, at: process_one_work+0x6d0/0x1558 kernel/workqueue.c:3231 #2: ffff800092dc6688 (rfkill_global_mutex){+.+.}-{4:4}, at: rfkill_sync_work+0x38/0x1e8 net/rfkill/core.c:1055 #3: ffff0000c7499100 (&dev->mutex){....}-{4:4}, at: device_lock include/linux/device.h:895 [inline] #3: ffff0000c7499100 (&dev->mutex){....}-{4:4}, at: nfc_dev_down+0x3c/0x258 net/nfc/core.c:143 1 lock held by udevd/6826: #0: ffff8000914f3808 (misc_mtx){+.+.}-{4:4}, at: misc_open+0x68/0x33c drivers/char/misc.c:125 1 lock held by udevd/7715: #0: ffff8000914f3808 (misc_mtx){+.+.}-{4:4}, at: misc_open+0x68/0x33c drivers/char/misc.c:125 2 locks held by syz-executor/9395: #0: ffff8000914f3808 (misc_mtx){+.+.}-{4:4}, at: misc_open+0x68/0x33c drivers/char/misc.c:125 #1: ffff800092dc6688 (rfkill_global_mutex){+.+.}-{4:4}, at: rfkill_fop_open+0x110/0x744 net/rfkill/core.c:1178 1 lock held by syz.2.566/9481: #0: ffff0000c7499100 (&dev->mutex){....}-{4:4}, at: device_lock include/linux/device.h:895 [inline] #0: ffff0000c7499100 (&dev->mutex){....}-{4:4}, at: nfc_unregister_device+0x68/0x2d8 net/nfc/core.c:1165 1 lock held by syz.0.582/9686: #0: ffff8000914f3808 (misc_mtx){+.+.}-{4:4}, at: misc_open+0x68/0x33c drivers/char/misc.c:125 1 lock held by syz.0.582/9690: #0: ffff8000914f3808 (misc_mtx){+.+.}-{4:4}, at: misc_open+0x68/0x33c drivers/char/misc.c:125 1 lock held by syz.1.600/9778: #0: ffff8000914f3808 (misc_mtx){+.+.}-{4:4}, at: misc_open+0x68/0x33c drivers/char/misc.c:125 1 lock held by syz.4.603/9794: #0: ffff8000914f3808 (misc_mtx){+.+.}-{4:4}, at: misc_open+0x68/0x33c drivers/char/misc.c:125 1 lock held by syz-executor/9853: #0: ffff8000914f3808 (misc_mtx){+.+.}-{4:4}, at: misc_open+0x68/0x33c drivers/char/misc.c:125 1 lock held by syz-executor/9855: #0: ffff8000914f3808 (misc_mtx){+.+.}-{4:4}, at: misc_open+0x68/0x33c drivers/char/misc.c:125 1 lock held by syz-executor/9857: #0: ffff8000914f3808 (misc_mtx){+.+.}-{4:4}, at: misc_open+0x68/0x33c drivers/char/misc.c:125 1 lock held by syz-executor/9859: #0: ffff8000914f3808 (misc_mtx){+.+.}-{4:4}, at: misc_open+0x68/0x33c drivers/char/misc.c:125 1 lock held by syz-executor/9864: #0: ffff8000914f3808 (misc_mtx){+.+.}-{4:4}, at: misc_open+0x68/0x33c drivers/char/misc.c:125 1 lock held by syz-executor/9866: #0: ffff8000914f3808 (misc_mtx){+.+.}-{4:4}, at: misc_open+0x68/0x33c drivers/char/misc.c:125 1 lock held by syz-executor/9868: #0: ffff8000914f3808 (misc_mtx){+.+.}-{4:4}, at: misc_open+0x68/0x33c drivers/char/misc.c:125 1 lock held by syz-executor/9870: #0: ffff8000914f3808 (misc_mtx){+.+.}-{4:4}, at: misc_open+0x68/0x33c drivers/char/misc.c:125 1 lock held by syz-executor/9872: #0: ffff8000914f3808 (misc_mtx){+.+.}-{4:4}, at: misc_open+0x68/0x33c drivers/char/misc.c:125 1 lock held by syz-executor/9877: #0: ffff8000914f3808 (misc_mtx){+.+.}-{4:4}, at: misc_open+0x68/0x33c drivers/char/misc.c:125 1 lock held by syz-executor/9879: #0: ffff8000914f3808 (misc_mtx){+.+.}-{4:4}, at: misc_open+0x68/0x33c drivers/char/misc.c:125 1 lock held by syz-executor/9881: #0: ffff8000914f3808 (misc_mtx){+.+.}-{4:4}, at: misc_open+0x68/0x33c drivers/char/misc.c:125 1 lock held by syz-executor/9883: #0: ffff8000914f3808 (misc_mtx){+.+.}-{4:4}, at: misc_open+0x68/0x33c drivers/char/misc.c:125 1 lock held by syz-executor/9885: #0: ffff8000914f3808 (misc_mtx){+.+.}-{4:4}, at: misc_open+0x68/0x33c drivers/char/misc.c:125 =============================================