INFO: task syz-executor.1:5414 blocked for more than 143 seconds. Not tainted 6.7.0-rc7-syzkaller-g861deac3b092 #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor.1 state:D stack:19656 pid:5414 tgid:5414 ppid:1 flags:0x00004006 Call Trace: context_switch kernel/sched/core.c:5376 [inline] __schedule+0x19aa/0x4aa0 kernel/sched/core.c:6688 __schedule_loop kernel/sched/core.c:6763 [inline] schedule+0x145/0x250 kernel/sched/core.c:6778 schedule_preempt_disabled+0xf/0x20 kernel/sched/core.c:6835 __mutex_lock_common kernel/locking/mutex.c:679 [inline] __mutex_lock+0x69f/0xd60 kernel/locking/mutex.c:747 misc_open+0x58/0x380 drivers/char/misc.c:129 chrdev_open+0x5a7/0x630 fs/char_dev.c:414 do_dentry_open+0x8fd/0x1590 fs/open.c:948 do_open fs/namei.c:3622 [inline] path_openat+0x2841/0x3280 fs/namei.c:3779 do_filp_open+0x230/0x480 fs/namei.c:3809 do_sys_openat2+0x13a/0x1c0 fs/open.c:1437 do_sys_open fs/open.c:1452 [inline] __do_sys_openat fs/open.c:1468 [inline] __se_sys_openat fs/open.c:1463 [inline] __x64_sys_openat+0x243/0x290 fs/open.c:1463 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0x40/0x110 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x63/0x6b RIP: 0033:0x7fc25f47b6e0 RSP: 002b:00007ffe5cb38440 EFLAGS: 00000293 ORIG_RAX: 0000000000000101 RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007fc25f47b6e0 RDX: 0000000000000002 RSI: 00007fc25f4c7787 RDI: 00000000ffffff9c RBP: 00007fc25f4c7787 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000293 R12: 00007ffe5cb38c08 R13: 00007ffe5cb38c08 R14: 0000000000000001 R15: 00000000fffffff1 INFO: task syz-executor.5:5418 blocked for more than 143 seconds. Not tainted 6.7.0-rc7-syzkaller-g861deac3b092 #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor.5 state:D stack:20648 pid:5418 tgid:5418 ppid:1 flags:0x00004006 Call Trace: context_switch kernel/sched/core.c:5376 [inline] __schedule+0x19aa/0x4aa0 kernel/sched/core.c:6688 __schedule_loop kernel/sched/core.c:6763 [inline] schedule+0x145/0x250 kernel/sched/core.c:6778 schedule_preempt_disabled+0xf/0x20 kernel/sched/core.c:6835 __mutex_lock_common kernel/locking/mutex.c:679 [inline] __mutex_lock+0x69f/0xd60 kernel/locking/mutex.c:747 misc_open+0x58/0x380 drivers/char/misc.c:129 chrdev_open+0x5a7/0x630 fs/char_dev.c:414 do_dentry_open+0x8fd/0x1590 fs/open.c:948 do_open fs/namei.c:3622 [inline] path_openat+0x2841/0x3280 fs/namei.c:3779 do_filp_open+0x230/0x480 fs/namei.c:3809 do_sys_openat2+0x13a/0x1c0 fs/open.c:1437 do_sys_open fs/open.c:1452 [inline] __do_sys_openat fs/open.c:1468 [inline] __se_sys_openat fs/open.c:1463 [inline] __x64_sys_openat+0x243/0x290 fs/open.c:1463 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0x40/0x110 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x63/0x6b RIP: 0033:0x7f8a1407b6e0 RSP: 002b:00007fff2cd584c0 EFLAGS: 00000293 ORIG_RAX: 0000000000000101 RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f8a1407b6e0 RDX: 0000000000000002 RSI: 00007f8a140c7787 RDI: 00000000ffffff9c RBP: 00007f8a140c7787 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000293 R12: 00007fff2cd58c88 R13: 00007fff2cd58c88 R14: 0000000000000001 R15: 00000000fffffff1 INFO: task syz-executor.0:5421 blocked for more than 143 seconds. Not tainted 6.7.0-rc7-syzkaller-g861deac3b092 #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor.0 state:D stack:20008 pid:5421 tgid:5421 ppid:1 flags:0x00004006 Call Trace: context_switch kernel/sched/core.c:5376 [inline] __schedule+0x19aa/0x4aa0 kernel/sched/core.c:6688 __schedule_loop kernel/sched/core.c:6763 [inline] schedule+0x145/0x250 kernel/sched/core.c:6778 schedule_preempt_disabled+0xf/0x20 kernel/sched/core.c:6835 __mutex_lock_common kernel/locking/mutex.c:679 [inline] __mutex_lock+0x69f/0xd60 kernel/locking/mutex.c:747 misc_open+0x58/0x380 drivers/char/misc.c:129 chrdev_open+0x5a7/0x630 fs/char_dev.c:414 do_dentry_open+0x8fd/0x1590 fs/open.c:948 do_open fs/namei.c:3622 [inline] path_openat+0x2841/0x3280 fs/namei.c:3779 do_filp_open+0x230/0x480 fs/namei.c:3809 do_sys_openat2+0x13a/0x1c0 fs/open.c:1437 do_sys_open fs/open.c:1452 [inline] __do_sys_openat fs/open.c:1468 [inline] __se_sys_openat fs/open.c:1463 [inline] __x64_sys_openat+0x243/0x290 fs/open.c:1463 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0x40/0x110 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x63/0x6b RIP: 0033:0x7f303b07b6e0 RSP: 002b:00007ffe04576470 EFLAGS: 00000293 ORIG_RAX: 0000000000000101 RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f303b07b6e0 RDX: 0000000000000002 RSI: 00007f303b0c7787 RDI: 00000000ffffff9c RBP: 00007f303b0c7787 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000293 R12: 00007ffe04576c38 R13: 00007ffe04576c38 R14: 0000000000000001 R15: 00000000fffffff1 INFO: task syz-executor.4:5422 blocked for more than 144 seconds. Not tainted 6.7.0-rc7-syzkaller-g861deac3b092 #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor.4 state:D stack:20408 pid:5422 tgid:5422 ppid:1 flags:0x00004006 Call Trace: context_switch kernel/sched/core.c:5376 [inline] __schedule+0x19aa/0x4aa0 kernel/sched/core.c:6688 __schedule_loop kernel/sched/core.c:6763 [inline] schedule+0x145/0x250 kernel/sched/core.c:6778 schedule_preempt_disabled+0xf/0x20 kernel/sched/core.c:6835 __mutex_lock_common kernel/locking/mutex.c:679 [inline] __mutex_lock+0x69f/0xd60 kernel/locking/mutex.c:747 misc_open+0x58/0x380 drivers/char/misc.c:129 chrdev_open+0x5a7/0x630 fs/char_dev.c:414 do_dentry_open+0x8fd/0x1590 fs/open.c:948 do_open fs/namei.c:3622 [inline] path_openat+0x2841/0x3280 fs/namei.c:3779 do_filp_open+0x230/0x480 fs/namei.c:3809 do_sys_openat2+0x13a/0x1c0 fs/open.c:1437 do_sys_open fs/open.c:1452 [inline] __do_sys_openat fs/open.c:1468 [inline] __se_sys_openat fs/open.c:1463 [inline] __x64_sys_openat+0x243/0x290 fs/open.c:1463 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0x40/0x110 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x63/0x6b RIP: 0033:0x7f31cc67b6e0 RSP: 002b:00007ffda9c2fb80 EFLAGS: 00000293 ORIG_RAX: 0000000000000101 RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f31cc67b6e0 RDX: 0000000000000002 RSI: 00007f31cc6c7787 RDI: 00000000ffffff9c RBP: 00007f31cc6c7787 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000293 R12: 00007ffda9c30348 R13: 00007ffda9c30348 R14: 0000000000000001 R15: 00000000fffffff1 INFO: task kworker/0:7:5629 blocked for more than 144 seconds. Not tainted 6.7.0-rc7-syzkaller-g861deac3b092 #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/0:7 state:D stack:25224 pid:5629 tgid:5629 ppid:2 flags:0x00004000 Workqueue: events rfkill_global_led_trigger_worker Call Trace: context_switch kernel/sched/core.c:5376 [inline] __schedule+0x19aa/0x4aa0 kernel/sched/core.c:6688 __schedule_loop kernel/sched/core.c:6763 [inline] schedule+0x145/0x250 kernel/sched/core.c:6778 schedule_preempt_disabled+0xf/0x20 kernel/sched/core.c:6835 __mutex_lock_common kernel/locking/mutex.c:679 [inline] __mutex_lock+0x69f/0xd60 kernel/locking/mutex.c:747 rfkill_global_led_trigger_worker+0x23/0xd0 net/rfkill/core.c:182 process_one_work kernel/workqueue.c:2627 [inline] process_scheduled_works+0x90b/0x1400 kernel/workqueue.c:2700 worker_thread+0xa5b/0xff0 kernel/workqueue.c:2781 kthread+0x2cf/0x360 kernel/kthread.c:388 ret_from_fork+0x44/0x70 arch/x86/kernel/process.c:147 ret_from_fork_asm+0x11/0x20 arch/x86/entry/entry_64.S:242 INFO: task syz-executor.2:5646 blocked for more than 144 seconds. Not tainted 6.7.0-rc7-syzkaller-g861deac3b092 #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor.2 state:D stack:24680 pid:5646 tgid:5646 ppid:5428 flags:0x00004006 Call Trace: context_switch kernel/sched/core.c:5376 [inline] __schedule+0x19aa/0x4aa0 kernel/sched/core.c:6688 __schedule_loop kernel/sched/core.c:6763 [inline] schedule+0x145/0x250 kernel/sched/core.c:6778 schedule_preempt_disabled+0xf/0x20 kernel/sched/core.c:6835 __mutex_lock_common kernel/locking/mutex.c:679 [inline] __mutex_lock+0x69f/0xd60 kernel/locking/mutex.c:747 rfkill_unregister+0xcc/0x220 net/rfkill/core.c:1149 nfc_unregister_device+0x92/0x290 net/nfc/core.c:1167 virtual_ncidev_close+0x55/0x90 drivers/nfc/virtual_ncidev.c:168 __fput+0x3cc/0x9e0 fs/file_table.c:394 __do_sys_close fs/open.c:1587 [inline] __se_sys_close+0x155/0x1e0 fs/open.c:1572 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0x40/0x110 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x63/0x6b RIP: 0033:0x7f16ada7b9da RSP: 002b:00007ffd2ce795f0 EFLAGS: 00000293 ORIG_RAX: 0000000000000003 RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 00007f16ada7b9da RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000003 RBP: 00007f16adb9d980 R08: 0000001b2e160000 R09: 00007ffd2cefd0b0 R10: 00007ffd2cefd080 R11: 0000000000000293 R12: 000000000001670a R13: ffffffffffffffff R14: 00007f16ad600000 R15: 00000000000163c9 INFO: task syz-executor.2:5647 blocked for more than 144 seconds. Not tainted 6.7.0-rc7-syzkaller-g861deac3b092 #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor.2 state:D stack:24408 pid:5647 tgid:5646 ppid:5428 flags:0x00004006 Call Trace: context_switch kernel/sched/core.c:5376 [inline] __schedule+0x19aa/0x4aa0 kernel/sched/core.c:6688 __schedule_loop kernel/sched/core.c:6763 [inline] schedule+0x145/0x250 kernel/sched/core.c:6778 schedule_preempt_disabled+0xf/0x20 kernel/sched/core.c:6835 __mutex_lock_common kernel/locking/mutex.c:679 [inline] __mutex_lock+0x69f/0xd60 kernel/locking/mutex.c:747 device_lock include/linux/device.h:992 [inline] nfc_dev_down net/nfc/core.c:143 [inline] nfc_rfkill_set_block+0x4c/0x2f0 net/nfc/core.c:179 rfkill_set_block+0x1e7/0x430 net/rfkill/core.c:346 rfkill_fop_write+0x5b7/0x790 net/rfkill/core.c:1305 vfs_write+0x28c/0xb20 fs/read_write.c:582 ksys_write+0x19c/0x2c0 fs/read_write.c:637 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0x40/0x110 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x63/0x6b RIP: 0033:0x7f16ada7cae9 RSP: 002b:00007f16ae7c00c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 RAX: ffffffffffffffda RBX: 00007f16adb9bf80 RCX: 00007f16ada7cae9 RDX: 0000000000000008 RSI: 00000000200000c0 RDI: 0000000000000004 RBP: 00007f16adac847a R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 000000000000000b R14: 00007f16adb9bf80 R15: 00007ffd2ce79528 INFO: task syz-executor.3:5659 blocked for more than 145 seconds. Not tainted 6.7.0-rc7-syzkaller-g861deac3b092 #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor.3 state:D stack:25320 pid:5659 tgid:5658 ppid:5417 flags:0x00004006 Call Trace: context_switch kernel/sched/core.c:5376 [inline] __schedule+0x19aa/0x4aa0 kernel/sched/core.c:6688 __schedule_loop kernel/sched/core.c:6763 [inline] schedule+0x145/0x250 kernel/sched/core.c:6778 schedule_preempt_disabled+0xf/0x20 kernel/sched/core.c:6835 __mutex_lock_common kernel/locking/mutex.c:679 [inline] __mutex_lock+0x69f/0xd60 kernel/locking/mutex.c:747 rfkill_register+0x30/0x8b0 net/rfkill/core.c:1075 nfc_register_device+0x144/0x310 net/nfc/core.c:1132 nci_register_device+0x7be/0x900 net/nfc/nci/core.c:1262 virtual_ncidev_open+0x138/0x1b0 drivers/nfc/virtual_ncidev.c:153 misc_open+0x307/0x380 drivers/char/misc.c:165 chrdev_open+0x5a7/0x630 fs/char_dev.c:414 do_dentry_open+0x8fd/0x1590 fs/open.c:948 do_open fs/namei.c:3622 [inline] path_openat+0x2841/0x3280 fs/namei.c:3779 do_filp_open+0x230/0x480 fs/namei.c:3809 do_sys_openat2+0x13a/0x1c0 fs/open.c:1437 do_sys_open fs/open.c:1452 [inline] __do_sys_openat fs/open.c:1468 [inline] __se_sys_openat fs/open.c:1463 [inline] __x64_sys_openat+0x243/0x290 fs/open.c:1463 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0x40/0x110 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x63/0x6b RIP: 0033:0x7fb010a7cae9 RSP: 002b:00007fb01185f0c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000101 RAX: ffffffffffffffda RBX: 00007fb010b9bf80 RCX: 00007fb010a7cae9 RDX: 0000000000000002 RSI: 0000000020000540 RDI: ffffffffffffff9c RBP: 00007fb010ac847a R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 000000000000000b R14: 00007fb010b9bf80 R15: 00007ffd7995c228 INFO: task syz-executor.3:5666 blocked for more than 145 seconds. Not tainted 6.7.0-rc7-syzkaller-g861deac3b092 #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor.3 state:D stack:25672 pid:5666 tgid:5658 ppid:5417 flags:0x00004006 Call Trace: context_switch kernel/sched/core.c:5376 [inline] __schedule+0x19aa/0x4aa0 kernel/sched/core.c:6688 __schedule_loop kernel/sched/core.c:6763 [inline] schedule+0x145/0x250 kernel/sched/core.c:6778 schedule_preempt_disabled+0xf/0x20 kernel/sched/core.c:6835 __mutex_lock_common kernel/locking/mutex.c:679 [inline] __mutex_lock+0x69f/0xd60 kernel/locking/mutex.c:747 misc_open+0x58/0x380 drivers/char/misc.c:129 chrdev_open+0x5a7/0x630 fs/char_dev.c:414 do_dentry_open+0x8fd/0x1590 fs/open.c:948 do_open fs/namei.c:3622 [inline] path_openat+0x2841/0x3280 fs/namei.c:3779 do_filp_open+0x230/0x480 fs/namei.c:3809 do_sys_openat2+0x13a/0x1c0 fs/open.c:1437 do_sys_open fs/open.c:1452 [inline] __do_sys_openat fs/open.c:1468 [inline] __se_sys_openat fs/open.c:1463 [inline] __x64_sys_openat+0x243/0x290 fs/open.c:1463 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0x40/0x110 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x63/0x6b RIP: 0033:0x7fb010a7cae9 RSP: 002b:00007fb01183e0c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000101 RAX: ffffffffffffffda RBX: 00007fb010b9c050 RCX: 00007fb010a7cae9 RDX: 0000000000000002 RSI: 0000000020000080 RDI: ffffffffffffff9c RBP: 00007fb010ac847a R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 000000000000006e R14: 00007fb010b9c050 R15: 00007ffd7995c228 Showing all locks held in the system: 1 lock held by khungtaskd/29: #0: ffffffff8d32c020 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire include/linux/rcupdate.h:301 [inline] #0: ffffffff8d32c020 (rcu_read_lock){....}-{1:2}, at: rcu_read_lock include/linux/rcupdate.h:747 [inline] #0: ffffffff8d32c020 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x51/0x290 kernel/locking/lockdep.c:6614 2 locks held by klogd/4494: #0: ffff8880b983b398 (&rq->__lock){-.-.}-{2:2}, at: raw_spin_rq_lock_nested+0x26/0x140 kernel/sched/core.c:558 #1: ffff8880b9827808 (&per_cpu_ptr(group->pcpu, cpu)->seq){-.-.}-{0:0}, at: psi_task_switch+0x43d/0x770 kernel/sched/psi.c:988 2 locks held by getty/4804: #0: ffff8880298da0a0 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x21/0x70 drivers/tty/tty_ldisc.c:243 #1: ffffc90002f062f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x6b0/0x1e00 drivers/tty/n_tty.c:2201 1 lock held by syz-executor.1/5414: #0: ffffffff8da91b88 (misc_mtx){+.+.}-{3:3}, at: misc_open+0x58/0x380 drivers/char/misc.c:129 1 lock held by syz-executor.5/5418: #0: ffffffff8da91b88 (misc_mtx){+.+.}-{3:3}, at: misc_open+0x58/0x380 drivers/char/misc.c:129 1 lock held by syz-executor.0/5421: #0: ffffffff8da91b88 (misc_mtx){+.+.}-{3:3}, at: misc_open+0x58/0x380 drivers/char/misc.c:129 1 lock held by syz-executor.4/5422: #0: ffffffff8da91b88 (misc_mtx){+.+.}-{3:3}, at: misc_open+0x58/0x380 drivers/char/misc.c:129 3 locks held by kworker/0:7/5629: #0: ffff888012870d38 ((wq_completion)events){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:2602 [inline] #0: ffff888012870d38 ((wq_completion)events){+.+.}-{0:0}, at: process_scheduled_works+0x821/0x1400 kernel/workqueue.c:2700 #1: ffffc900058afd20 ((work_completion)(&rfkill_global_led_trigger_work)){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:2602 [inline] #1: ffffc900058afd20 ((work_completion)(&rfkill_global_led_trigger_work)){+.+.}-{0:0}, at: process_scheduled_works+0x821/0x1400 kernel/workqueue.c:2700 #2: ffffffff8e7baf88 (rfkill_global_mutex){+.+.}-{3:3}, at: rfkill_global_led_trigger_worker+0x23/0xd0 net/rfkill/core.c:182 2 locks held by syz-executor.2/5646: #0: ffff88806c48a100 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:992 [inline] #0: ffff88806c48a100 (&dev->mutex){....}-{3:3}, at: nfc_unregister_device+0x5f/0x290 net/nfc/core.c:1165 #1: ffffffff8e7baf88 (rfkill_global_mutex){+.+.}-{3:3}, at: rfkill_unregister+0xcc/0x220 net/rfkill/core.c:1149 2 locks held by syz-executor.2/5647: #0: ffffffff8e7baf88 (rfkill_global_mutex){+.+.}-{3:3}, at: rfkill_fop_write+0x1a5/0x790 net/rfkill/core.c:1297 #1: ffff88806c48a100 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:992 [inline] #1: ffff88806c48a100 (&dev->mutex){....}-{3:3}, at: nfc_dev_down net/nfc/core.c:143 [inline] #1: ffff88806c48a100 (&dev->mutex){....}-{3:3}, at: nfc_rfkill_set_block+0x4c/0x2f0 net/nfc/core.c:179 3 locks held by syz-executor.3/5659: #0: ffffffff8da91b88 (misc_mtx){+.+.}-{3:3}, at: misc_open+0x58/0x380 drivers/char/misc.c:129 #1: ffff88801e1b2100 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:992 [inline] #1: ffff88801e1b2100 (&dev->mutex){....}-{3:3}, at: nfc_register_device+0x98/0x310 net/nfc/core.c:1128 #2: ffffffff8e7baf88 (rfkill_global_mutex){+.+.}-{3:3}, at: rfkill_register+0x30/0x8b0 net/rfkill/core.c:1075 1 lock held by syz-executor.3/5666: #0: ffffffff8da91b88 (misc_mtx){+.+.}-{3:3}, at: misc_open+0x58/0x380 drivers/char/misc.c:129 1 lock held by syz-executor.2/5958: #0: ffffffff8da91b88 (misc_mtx){+.+.}-{3:3}, at: misc_open+0x58/0x380 drivers/char/misc.c:129 1 lock held by syz-executor.3/5960: #0: ffffffff8da91b88 (misc_mtx){+.+.}-{3:3}, at: misc_open+0x58/0x380 drivers/char/misc.c:129 1 lock held by syz-executor.1/5962: #0: ffffffff8da91b88 (misc_mtx){+.+.}-{3:3}, at: misc_open+0x58/0x380 drivers/char/misc.c:129 1 lock held by syz-executor.5/5966: #0: ffffffff8da91b88 (misc_mtx){+.+.}-{3:3}, at: misc_open+0x58/0x380 drivers/char/misc.c:129 1 lock held by syz-executor.0/5967: #0: ffffffff8da91b88 (misc_mtx){+.+.}-{3:3}, at: misc_open+0x58/0x380 drivers/char/misc.c:129 1 lock held by syz-executor.4/5968: #0: ffffffff8da91b88 (misc_mtx){+.+.}-{3:3}, at: misc_open+0x58/0x380 drivers/char/misc.c:129 1 lock held by syz-executor.2/5970: #0: ffffffff8da91b88 (misc_mtx){+.+.}-{3:3}, at: misc_open+0x58/0x380 drivers/char/misc.c:129 1 lock held by syz-executor.3/5972: #0: ffffffff8da91b88 (misc_mtx){+.+.}-{3:3}, at: misc_open+0x58/0x380 drivers/char/misc.c:129 1 lock held by syz-executor.1/5974: #0: ffffffff8da91b88 (misc_mtx){+.+.}-{3:3}, at: misc_open+0x58/0x380 drivers/char/misc.c:129 1 lock held by syz-executor.4/5978: #0: ffffffff8da91b88 (misc_mtx){+.+.}-{3:3}, at: misc_open+0x58/0x380 drivers/char/misc.c:129 1 lock held by syz-executor.5/5979: #0: ffffffff8da91b88 (misc_mtx){+.+.}-{3:3}, at: misc_open+0x58/0x380 drivers/char/misc.c:129 1 lock held by syz-executor.0/5980: #0: ffffffff8da91b88 (misc_mtx){+.+.}-{3:3}, at: misc_open+0x58/0x380 drivers/char/misc.c:129 ============================================= NMI backtrace for cpu 0 CPU: 0 PID: 29 Comm: khungtaskd Not tainted 6.7.0-rc7-syzkaller-g861deac3b092 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/17/2023 Call Trace: __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0x1e3/0x2d0 lib/dump_stack.c:106 nmi_cpu_backtrace+0x494/0x4d0 lib/nmi_backtrace.c:113 nmi_trigger_cpumask_backtrace+0x194/0x2f0 lib/nmi_backtrace.c:62 trigger_all_cpu_backtrace include/linux/nmi.h:160 [inline] check_hung_uninterruptible_tasks kernel/hung_task.c:222 [inline] watchdog+0xfa1/0xfe0 kernel/hung_task.c:379 kthread+0x2cf/0x360 kernel/kthread.c:388 ret_from_fork+0x44/0x70 arch/x86/kernel/process.c:147 ret_from_fork_asm+0x11/0x20 arch/x86/entry/entry_64.S:242 Sending NMI from CPU 0 to CPUs 1: NMI backtrace for cpu 1 CPU: 1 PID: 1253 Comm: kworker/u4:7 Not tainted 6.7.0-rc7-syzkaller-g861deac3b092 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/17/2023 Workqueue: events_unbound toggle_allocation_gate RIP: 0010:arch_static_branch arch/x86/include/asm/jump_label.h:27 [inline] RIP: 0010:static_key_false include/linux/jump_label.h:207 [inline] RIP: 0010:native_write_msr arch/x86/include/asm/msr.h:147 [inline] RIP: 0010:wrmsrl arch/x86/include/asm/msr.h:262 [inline] RIP: 0010:native_x2apic_icr_write arch/x86/include/asm/apic.h:216 [inline] RIP: 0010:__x2apic_send_IPI_dest arch/x86/kernel/apic/x2apic_phys.c:113 [inline] RIP: 0010:x2apic_send_IPI+0x76/0xd0 arch/x86/kernel/apic/x2apic_phys.c:50 Code: d8 48 c1 e8 03 42 0f b6 04 38 84 c0 75 25 8b 13 0f ae f0 0f ae e8 41 83 fe 02 b8 00 04 00 00 41 0f 45 c6 b9 30 08 00 00 0f 30 <66> 90 5b 41 5e 41 5f 5d c3 89 d9 80 e1 07 80 c1 03 38 c1 7c cf 48 RSP: 0018:ffffc90004ddf6f8 EFLAGS: 00000206 RAX: 00000000000000fb RBX: ffff8880b98219e8 RCX: 0000000000000830 RDX: 0000000000000000 RSI: 00000000000000fb RDI: 0000000000000000 RBP: ffffffff8ce28900 R08: ffffffff8182640e R09: 1ffffffff1d38405 R10: dffffc0000000000 R11: fffffbfff1d38406 R12: dffffc0000000000 R13: ffff8880b993c4c0 R14: 00000000000000fb R15: dffffc0000000000 FS: 0000000000000000(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000055848b3af600 CR3: 000000000d130000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: arch_send_call_function_single_ipi arch/x86/include/asm/smp.h:101 [inline] send_call_function_single_ipi kernel/smp.c:117 [inline] smp_call_function_many_cond+0x1419/0x28f0 kernel/smp.c:837 on_each_cpu_cond_mask+0x3b/0x80 kernel/smp.c:1023 on_each_cpu include/linux/smp.h:71 [inline] text_poke_sync arch/x86/kernel/alternative.c:2016 [inline] text_poke_bp_batch+0x71e/0xb20 arch/x86/kernel/alternative.c:2288 text_poke_flush arch/x86/kernel/alternative.c:2417 [inline] text_poke_finish+0x2c/0x40 arch/x86/kernel/alternative.c:2424 arch_jump_label_transform_apply+0x18/0x30 arch/x86/kernel/jump_label.c:146 static_key_enable_cpuslocked+0x12e/0x250 kernel/jump_label.c:205 static_key_enable+0x16/0x20 kernel/jump_label.c:218 toggle_allocation_gate+0xb1/0x250 mm/kfence/core.c:830 process_one_work kernel/workqueue.c:2627 [inline] process_scheduled_works+0x90b/0x1400 kernel/workqueue.c:2700 worker_thread+0xa5b/0xff0 kernel/workqueue.c:2781 kthread+0x2cf/0x360 kernel/kthread.c:388 ret_from_fork+0x44/0x70 arch/x86/kernel/process.c:147 ret_from_fork_asm+0x11/0x20 arch/x86/entry/entry_64.S:242