INFO: task kworker/1:0:25 blocked for more than 143 seconds. Not tainted 6.13.0-rc7-syzkaller-g1950a0af2d55 #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/1:0 state:D stack:0 pid:25 tgid:25 ppid:2 flags:0x00000008 Workqueue: events rfkill_op_handler 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_epo+0x8c/0x158 net/rfkill/core.c:466 __rfkill_handle_global_op net/rfkill/input.c:60 [inline] rfkill_op_handler+0x170/0x288 net/rfkill/input.c:108 process_one_work+0x7a8/0x15cc kernel/workqueue.c:3236 process_scheduled_works kernel/workqueue.c:3317 [inline] worker_thread+0x97c/0xeec kernel/workqueue.c:3398 kthread+0x288/0x310 kernel/kthread.c:389 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:862 INFO: task kworker/1:5:6477 blocked for more than 143 seconds. Not tainted 6.13.0-rc7-syzkaller-g1950a0af2d55 #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/1:5 state:D stack:0 pid:6477 tgid:6477 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:3236 process_scheduled_works kernel/workqueue.c:3317 [inline] worker_thread+0x97c/0xeec kernel/workqueue.c:3398 kthread+0x288/0x310 kernel/kthread.c:389 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:862 INFO: task kworker/u8:16:6746 blocked for more than 143 seconds. Not tainted 6.13.0-rc7-syzkaller-g1950a0af2d55 #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/u8:16 state:D stack:0 pid:6746 tgid:6746 ppid:2 flags:0x00000008 Workqueue: netns cleanup_net 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_unregister+0xb8/0x210 net/rfkill/core.c:1145 wiphy_unregister+0x1e8/0xa0c net/wireless/core.c:1142 ieee80211_unregister_hw+0x1b8/0x29c net/mac80211/main.c:1694 mac80211_hwsim_del_radio+0x220/0x3e4 drivers/net/wireless/virtual/mac80211_hwsim.c:5625 hwsim_exit_net+0x51c/0x5ec drivers/net/wireless/virtual/mac80211_hwsim.c:6505 ops_exit_list net/core/net_namespace.c:172 [inline] cleanup_net+0x640/0xa34 net/core/net_namespace.c:648 process_one_work+0x7a8/0x15cc kernel/workqueue.c:3236 process_scheduled_works kernel/workqueue.c:3317 [inline] worker_thread+0x97c/0xeec kernel/workqueue.c:3398 kthread+0x288/0x310 kernel/kthread.c:389 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:862 INFO: task syz-executor:8295 blocked for more than 143 seconds. Not tainted 6.13.0-rc7-syzkaller-g1950a0af2d55 #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor state:D stack:0 pid:8295 tgid:8295 ppid:1 flags:0x00000001 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_fop_open+0x12c/0x778 net/rfkill/core.c:1178 misc_open+0x2b8/0x328 drivers/char/misc.c:165 chrdev_open+0x3b0/0x4bc fs/char_dev.c:414 do_dentry_open+0xc0c/0x168c fs/open.c:945 vfs_open+0x48/0x2d4 fs/open.c:1075 do_open fs/namei.c:3828 [inline] path_openat+0x2300/0x2b14 fs/namei.c:3987 do_filp_open+0x1e8/0x404 fs/namei.c:4014 do_sys_openat2+0x124/0x1b8 fs/open.c:1402 do_sys_open fs/open.c:1417 [inline] __do_sys_openat fs/open.c:1433 [inline] __se_sys_openat fs/open.c:1428 [inline] __arm64_sys_openat+0x1f0/0x240 fs/open.c:1428 __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.2.239:8341 blocked for more than 143 seconds. Not tainted 6.13.0-rc7-syzkaller-g1950a0af2d55 #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz.2.239 state:D stack:0 pid:8341 tgid:8341 ppid:6422 flags:0x0000000d 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_unregister+0xb8/0x210 net/rfkill/core.c:1145 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 INFO: task syz.5.261:8555 blocked for more than 143 seconds. Not tainted 6.13.0-rc7-syzkaller-g1950a0af2d55 #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz.5.261 state:D stack:0 pid:8555 tgid:8547 ppid:6639 flags:0x00000001 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 misc_open+0x68/0x328 drivers/char/misc.c:129 chrdev_open+0x3b0/0x4bc fs/char_dev.c:414 do_dentry_open+0xc0c/0x168c fs/open.c:945 vfs_open+0x48/0x2d4 fs/open.c:1075 do_open fs/namei.c:3828 [inline] path_openat+0x2300/0x2b14 fs/namei.c:3987 do_filp_open+0x1e8/0x404 fs/namei.c:4014 do_sys_openat2+0x124/0x1b8 fs/open.c:1402 do_sys_open fs/open.c:1417 [inline] __do_sys_openat fs/open.c:1433 [inline] __se_sys_openat fs/open.c:1428 [inline] __arm64_sys_openat+0x1f0/0x240 fs/open.c:1428 __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.3.263:8564 blocked for more than 143 seconds. Not tainted 6.13.0-rc7-syzkaller-g1950a0af2d55 #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz.3.263 state:D stack:0 pid:8564 tgid:8563 ppid:6431 flags:0x00000001 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 misc_open+0x68/0x328 drivers/char/misc.c:129 chrdev_open+0x3b0/0x4bc fs/char_dev.c:414 do_dentry_open+0xc0c/0x168c fs/open.c:945 vfs_open+0x48/0x2d4 fs/open.c:1075 do_open fs/namei.c:3828 [inline] path_openat+0x2300/0x2b14 fs/namei.c:3987 do_filp_open+0x1e8/0x404 fs/namei.c:4014 do_sys_openat2+0x124/0x1b8 fs/open.c:1402 do_sys_open fs/open.c:1417 [inline] __do_sys_openat fs/open.c:1433 [inline] __se_sys_openat fs/open.c:1428 [inline] __arm64_sys_openat+0x1f0/0x240 fs/open.c:1428 __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 Showing all locks held in the system: 4 locks held by kworker/1:0/25: #0: ffff0000c0028948 ((wq_completion)events){+.+.}-{0:0}, at: process_one_work+0x60c/0x15cc kernel/workqueue.c:3210 #1: ffff800097b67c20 ((rfkill_op_work).work){+.+.}-{0:0}, at: process_one_work+0x6a4/0x15cc kernel/workqueue.c:3210 #2: ffff800092b984e8 (rfkill_global_mutex){+.+.}-{4:4}, at: rfkill_epo+0x58/0x158 net/rfkill/core.c:462 #3: ffff0000d46bc100 (&dev->mutex){....}-{4:4}, at: device_lock include/linux/device.h:1014 [inline] #3: ffff0000d46bc100 (&dev->mutex){....}-{4:4}, at: nfc_dev_down net/nfc/core.c:143 [inline] #3: ffff0000d46bc100 (&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 2 locks held by getty/6187: #0: ffff0000d277b0a0 (&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 3 locks held by kworker/1:5/6477: #0: ffff0000c0028948 ((wq_completion)events){+.+.}-{0:0}, at: process_one_work+0x60c/0x15cc kernel/workqueue.c:3210 #1: ffff80009f977c20 ((work_completion)(&rfkill_global_led_trigger_work)){+.+.}-{0:0}, at: process_one_work+0x6a4/0x15cc kernel/workqueue.c:3210 #2: ffff800092b984e8 (rfkill_global_mutex){+.+.}-{4:4}, at: rfkill_global_led_trigger_worker+0x30/0xe4 net/rfkill/core.c:182 4 locks held by kworker/u8:16/6746: #0: ffff0000c1899948 ((wq_completion)netns){+.+.}-{0:0}, at: process_one_work+0x60c/0x15cc kernel/workqueue.c:3210 #1: ffff80009f257c20 (net_cleanup_work){+.+.}-{0:0}, at: process_one_work+0x6a4/0x15cc kernel/workqueue.c:3210 #2: ffff8000928c3910 (pernet_ops_rwsem){++++}-{4:4}, at: cleanup_net+0x13c/0xa34 net/core/net_namespace.c:602 #3: ffff800092b984e8 (rfkill_global_mutex){+.+.}-{4:4}, at: rfkill_unregister+0xb8/0x210 net/rfkill/core.c:1145 2 locks held by syz-executor/8295: #0: ffff800091396168 (misc_mtx){+.+.}-{4:4}, at: misc_open+0x68/0x328 drivers/char/misc.c:129 #1: ffff800092b984e8 (rfkill_global_mutex){+.+.}-{4:4}, at: rfkill_fop_open+0x12c/0x778 net/rfkill/core.c:1178 2 locks held by syz.2.239/8341: #0: ffff0000d46bc100 (&dev->mutex){....}-{4:4}, at: device_lock include/linux/device.h:1014 [inline] #0: ffff0000d46bc100 (&dev->mutex){....}-{4:4}, at: nfc_unregister_device+0x6c/0x290 net/nfc/core.c:1165 #1: ffff800092b984e8 (rfkill_global_mutex){+.+.}-{4:4}, at: rfkill_unregister+0xb8/0x210 net/rfkill/core.c:1145 1 lock held by syz.5.261/8555: #0: ffff800091396168 (misc_mtx){+.+.}-{4:4}, at: misc_open+0x68/0x328 drivers/char/misc.c:129 1 lock held by syz.3.263/8564: #0: ffff800091396168 (misc_mtx){+.+.}-{4:4}, at: misc_open+0x68/0x328 drivers/char/misc.c:129 1 lock held by syz.6.266/8677: #0: ffff800091396168 (misc_mtx){+.+.}-{4:4}, at: misc_open+0x68/0x328 drivers/char/misc.c:129 1 lock held by syz-executor/8768: #0: ffff800091396168 (misc_mtx){+.+.}-{4:4}, at: misc_open+0x68/0x328 drivers/char/misc.c:129 1 lock held by syz-executor/8847: #0: ffff800091396168 (misc_mtx){+.+.}-{4:4}, at: misc_open+0x68/0x328 drivers/char/misc.c:129 1 lock held by syz-executor/8892: #0: ffff800091396168 (misc_mtx){+.+.}-{4:4}, at: misc_open+0x68/0x328 drivers/char/misc.c:129 1 lock held by syz-executor/8899: #0: ffff800091396168 (misc_mtx){+.+.}-{4:4}, at: misc_open+0x68/0x328 drivers/char/misc.c:129 1 lock held by syz-executor/8906: #0: ffff800091396168 (misc_mtx){+.+.}-{4:4}, at: misc_open+0x68/0x328 drivers/char/misc.c:129 1 lock held by syz-executor/8913: #0: ffff800091396168 (misc_mtx){+.+.}-{4:4}, at: misc_open+0x68/0x328 drivers/char/misc.c:129 1 lock held by syz-executor/8915: #0: ffff800091396168 (misc_mtx){+.+.}-{4:4}, at: misc_open+0x68/0x328 drivers/char/misc.c:129 1 lock held by syz-executor/8917: #0: ffff800091396168 (misc_mtx){+.+.}-{4:4}, at: misc_open+0x68/0x328 drivers/char/misc.c:129 1 lock held by syz-executor/8919: #0: ffff800091396168 (misc_mtx){+.+.}-{4:4}, at: misc_open+0x68/0x328 drivers/char/misc.c:129 1 lock held by syz-executor/8926: #0: ffff800091396168 (misc_mtx){+.+.}-{4:4}, at: misc_open+0x68/0x328 drivers/char/misc.c:129 1 lock held by syz-executor/8928: #0: ffff800091396168 (misc_mtx){+.+.}-{4:4}, at: misc_open+0x68/0x328 drivers/char/misc.c:129 1 lock held by syz-executor/8930: #0: ffff800091396168 (misc_mtx){+.+.}-{4:4}, at: misc_open+0x68/0x328 drivers/char/misc.c:129 1 lock held by syz-executor/8932: #0: ffff800091396168 (misc_mtx){+.+.}-{4:4}, at: misc_open+0x68/0x328 drivers/char/misc.c:129 1 lock held by syz-executor/8934: #0: ffff800091396168 (misc_mtx){+.+.}-{4:4}, at: misc_open+0x68/0x328 drivers/char/misc.c:129 =============================================