INFO: task kworker/1:4:9733 blocked for more than 430 seconds. Not tainted 6.10.0-rc3-syzkaller-g83a7eefedc9b #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/1:4 state:D stack:0 pid:9733 tgid:9733 ppid:2 flags:0x00000000 Workqueue: events rfkill_global_led_trigger_worker Call Trace: [] context_switch kernel/sched/core.c:5408 [inline] [] __schedule+0xd5c/0x3486 kernel/sched/core.c:6745 [] __schedule_loop kernel/sched/core.c:6822 [inline] [] schedule+0xc4/0x324 kernel/sched/core.c:6837 [] schedule_preempt_disabled+0x16/0x28 kernel/sched/core.c:6894 [] __mutex_lock_common kernel/locking/mutex.c:684 [inline] [] __mutex_lock+0x86a/0x1022 kernel/locking/mutex.c:752 [] mutex_lock_nested+0x14/0x1c kernel/locking/mutex.c:804 [] rfkill_global_led_trigger_worker+0x2c/0x17a net/rfkill/core.c:182 [] process_one_work+0x938/0x1d5c kernel/workqueue.c:3231 [] process_scheduled_works kernel/workqueue.c:3312 [inline] [] worker_thread+0x5be/0xe24 kernel/workqueue.c:3393 [] kthread+0x28c/0x3a6 kernel/kthread.c:389 [] ret_from_fork+0xe/0x1c arch/riscv/kernel/entry.S:232 INFO: task kworker/1:1:11441 blocked for more than 430 seconds. Not tainted 6.10.0-rc3-syzkaller-g83a7eefedc9b #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/1:1 state:D stack:0 pid:11441 tgid:11441 ppid:2 flags:0x00000000 Workqueue: events rfkill_sync_work Call Trace: [] context_switch kernel/sched/core.c:5408 [inline] [] __schedule+0xd5c/0x3486 kernel/sched/core.c:6745 [] __schedule_loop kernel/sched/core.c:6822 [inline] [] schedule+0xc4/0x324 kernel/sched/core.c:6837 [] schedule_preempt_disabled+0x16/0x28 kernel/sched/core.c:6894 [] __mutex_lock_common kernel/locking/mutex.c:684 [inline] [] __mutex_lock+0x86a/0x1022 kernel/locking/mutex.c:752 [] mutex_lock_nested+0x14/0x1c kernel/locking/mutex.c:804 [] device_lock include/linux/device.h:1009 [inline] [] nfc_dev_down+0x3a/0x29a net/nfc/core.c:143 [] nfc_rfkill_set_block+0x44/0xf0 net/nfc/core.c:179 [] rfkill_set_block+0x1cc/0x500 net/rfkill/core.c:346 [] rfkill_sync+0x12a/0x1ce net/rfkill/core.c:379 [] rfkill_sync_work+0x32/0x48 net/rfkill/core.c:1060 [] process_one_work+0x938/0x1d5c kernel/workqueue.c:3231 [] process_scheduled_works kernel/workqueue.c:3312 [inline] [] worker_thread+0x5be/0xe24 kernel/workqueue.c:3393 [] kthread+0x28c/0x3a6 kernel/kthread.c:389 [] ret_from_fork+0xe/0x1c arch/riscv/kernel/entry.S:232 INFO: task syz-executor.0:11603 blocked for more than 430 seconds. Not tainted 6.10.0-rc3-syzkaller-g83a7eefedc9b #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor.0 state:D stack:0 pid:11603 tgid:11594 ppid:6984 flags:0x00000006 Call Trace: [] context_switch kernel/sched/core.c:5408 [inline] [] __schedule+0xd5c/0x3486 kernel/sched/core.c:6745 [] __schedule_loop kernel/sched/core.c:6822 [inline] [] schedule+0xc4/0x324 kernel/sched/core.c:6837 [] schedule_timeout+0x1e2/0x296 kernel/time/timer.c:2557 [] do_wait_for_common kernel/sched/completion.c:95 [inline] [] __wait_for_common+0x1c4/0x4aa kernel/sched/completion.c:116 [] wait_for_common kernel/sched/completion.c:127 [inline] [] wait_for_completion+0x1a/0x22 kernel/sched/completion.c:148 [] __flush_work+0x5de/0xc9e kernel/workqueue.c:4211 [] __cancel_work_sync+0x136/0x15a kernel/workqueue.c:4331 [] cancel_work_sync+0x1c/0x26 kernel/workqueue.c:4368 [] rfkill_unregister+0x98/0x2a0 net/rfkill/core.c:1143 [] nfc_unregister_device+0x9e/0x322 net/nfc/core.c:1167 [] nci_unregister_device+0x1d4/0x286 net/nfc/nci/core.c:1312 [] virtual_ncidev_close+0x50/0xb0 drivers/nfc/virtual_ncidev.c:172 [] __fput+0x37c/0xa12 fs/file_table.c:422 [] ____fput+0x1a/0x24 fs/file_table.c:450 [] task_work_run+0x16a/0x25e kernel/task_work.c:180 [] resume_user_mode_work include/linux/resume_user_mode.h:50 [inline] [] exit_to_user_mode_loop kernel/entry/common.c:114 [inline] [] exit_to_user_mode_prepare include/linux/entry-common.h:328 [inline] [] __syscall_exit_to_user_mode_work kernel/entry/common.c:207 [inline] [] syscall_exit_to_user_mode+0x30a/0x31e kernel/entry/common.c:218 [] do_trap_ecall_u+0x8e/0x214 arch/riscv/kernel/traps.c:345 [] ret_from_exception+0x0/0x64 arch/riscv/kernel/entry.S:112 Showing all locks held in the system: 1 lock held by khungtaskd/37: #0: ffffffff87bc3f00 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x68/0x2d6 kernel/locking/lockdep.c:6610 1 lock held by klogd/2853: 2 locks held by getty/3020: #0: ff60000015d080a0 (&tty->ldisc_sem){++++}-{0:0}, at: ldsem_down_read+0x3a/0x46 drivers/tty/tty_ldsem.c:340 #1: ff20000000e032f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0xd6a/0x1288 drivers/tty/n_tty.c:2201 2 locks held by syz-fuzzer/3077: 3 locks held by kworker/0:0/6690: 3 locks held by kworker/1:4/9733: #0: ff6000000b868948 ((wq_completion)events){+.+.}-{0:0}, at: process_one_work+0x824/0x1d5c kernel/workqueue.c:3206 #1: ff200000020dbc90 ((work_completion)(&rfkill_global_led_trigger_work)){+.+.}-{0:0}, at: process_one_work+0x850/0x1d5c kernel/workqueue.c:3206 #2: ffffffff890a5008 (rfkill_global_mutex){+.+.}-{3:3}, at: rfkill_global_led_trigger_worker+0x2c/0x17a net/rfkill/core.c:182 2 locks held by syz-executor.1/10233: 4 locks held by kworker/1:1/11441: #0: ff6000000b868948 ((wq_completion)events){+.+.}-{0:0}, at: process_one_work+0x824/0x1d5c kernel/workqueue.c:3206 #1: ff20000001453c90 ((work_completion)(&rfkill->sync_work)){+.+.}-{0:0}, at: process_one_work+0x850/0x1d5c kernel/workqueue.c:3206 #2: ffffffff890a5008 (rfkill_global_mutex){+.+.}-{3:3}, at: rfkill_sync_work+0x2a/0x48 net/rfkill/core.c:1059 #3: ff60000018317100 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:1009 [inline] #3: ff60000018317100 (&dev->mutex){....}-{3:3}, at: nfc_dev_down+0x3a/0x29a net/nfc/core.c:143 1 lock held by syz-executor.0/11603: #0: ff60000018317100 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:1009 [inline] #0: ff60000018317100 (&dev->mutex){....}-{3:3}, at: nfc_unregister_device+0x6e/0x322 net/nfc/core.c:1165 2 locks held by kworker/1:6/11631: 2 locks held by syz-executor.0/11673: 3 locks held by kworker/u8:3/12053: #0: ff6000000bf47148 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: process_one_work+0x824/0x1d5c kernel/workqueue.c:3206 #1: ff20000002243c90 ((work_completion)(&(&net->ipv6.addr_chk_work)->work)){+.+.}-{0:0}, at: process_one_work+0x850/0x1d5c kernel/workqueue.c:3206 #2: ffffffff88e43968 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock+0x22/0x2a net/core/rtnetlink.c:79 2 locks held by syz-executor.0/12435: #0: ffffffff88e43968 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock+0x22/0x2a net/core/rtnetlink.c:79 #1: ffffffff87bd4638 (rcu_state.exp_mutex){+.+.}-{3:3}, at: exp_funnel_lock+0x266/0x384 kernel/rcu/tree_exp.h:291 1 lock held by syz-executor.1/12454: #0: ffffffff88e43968 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:79 [inline] #0: ffffffff88e43968 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x3e2/0xdb2 net/core/rtnetlink.c:6632 =============================================