INFO: task kworker/0:1:9 blocked for more than 143 seconds. Not tainted 6.12.0-rc6-syzkaller-00279-gde2f378f2b77 #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/0:1 state:D stack:20208 pid:9 tgid:9 ppid:2 flags:0x00004000 Workqueue: events rfkill_uevent_work Call Trace: context_switch kernel/sched/core.c:5328 [inline] __schedule+0x184f/0x4c30 kernel/sched/core.c:6690 __schedule_loop kernel/sched/core.c:6767 [inline] schedule+0x14b/0x320 kernel/sched/core.c:6782 schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6839 __mutex_lock_common kernel/locking/mutex.c:684 [inline] __mutex_lock+0x6a7/0xd70 kernel/locking/mutex.c:752 rfkill_uevent_work+0x1d/0xb0 net/rfkill/core.c:1046 process_one_work kernel/workqueue.c:3229 [inline] process_scheduled_works+0xa65/0x1850 kernel/workqueue.c:3310 worker_thread+0x870/0xd30 kernel/workqueue.c:3391 kthread+0x2f2/0x390 kernel/kthread.c:389 ret_from_fork+0x4d/0x80 arch/x86/kernel/process.c:147 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244 INFO: task kworker/1:2:3062 blocked for more than 143 seconds. Not tainted 6.12.0-rc6-syzkaller-00279-gde2f378f2b77 #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/1:2 state:D stack:20504 pid:3062 tgid:3062 ppid:2 flags:0x00004000 Workqueue: events rfkill_global_led_trigger_worker Call Trace: context_switch kernel/sched/core.c:5328 [inline] __schedule+0x184f/0x4c30 kernel/sched/core.c:6690 __schedule_loop kernel/sched/core.c:6767 [inline] schedule+0x14b/0x320 kernel/sched/core.c:6782 schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6839 __mutex_lock_common kernel/locking/mutex.c:684 [inline] __mutex_lock+0x6a7/0xd70 kernel/locking/mutex.c:752 rfkill_global_led_trigger_worker+0x27/0xd0 net/rfkill/core.c:182 process_one_work kernel/workqueue.c:3229 [inline] process_scheduled_works+0xa65/0x1850 kernel/workqueue.c:3310 worker_thread+0x870/0xd30 kernel/workqueue.c:3391 kthread+0x2f2/0x390 kernel/kthread.c:389 ret_from_fork+0x4d/0x80 arch/x86/kernel/process.c:147 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244 INFO: task kworker/1:5:5905 blocked for more than 143 seconds. Not tainted 6.12.0-rc6-syzkaller-00279-gde2f378f2b77 #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/1:5 state:D stack:19544 pid:5905 tgid:5905 ppid:2 flags:0x00004000 Workqueue: events rfkill_sync_work Call Trace: context_switch kernel/sched/core.c:5328 [inline] __schedule+0x184f/0x4c30 kernel/sched/core.c:6690 __schedule_loop kernel/sched/core.c:6767 [inline] schedule+0x14b/0x320 kernel/sched/core.c:6782 schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6839 __mutex_lock_common kernel/locking/mutex.c:684 [inline] __mutex_lock+0x6a7/0xd70 kernel/locking/mutex.c:752 device_lock include/linux/device.h:1014 [inline] nfc_dev_down net/nfc/core.c:143 [inline] nfc_rfkill_set_block+0x50/0x310 net/nfc/core.c:179 rfkill_set_block+0x1f3/0x440 net/rfkill/core.c:346 rfkill_sync net/rfkill/core.c:379 [inline] rfkill_sync_work+0x12a/0x220 net/rfkill/core.c:1056 process_one_work kernel/workqueue.c:3229 [inline] process_scheduled_works+0xa65/0x1850 kernel/workqueue.c:3310 worker_thread+0x870/0xd30 kernel/workqueue.c:3391 kthread+0x2f2/0x390 kernel/kthread.c:389 ret_from_fork+0x4d/0x80 arch/x86/kernel/process.c:147 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244 INFO: task syz.6.2541:16222 blocked for more than 143 seconds. Not tainted 6.12.0-rc6-syzkaller-00279-gde2f378f2b77 #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz.6.2541 state:D stack:22384 pid:16222 tgid:16222 ppid:14647 flags:0x00004004 Call Trace: context_switch kernel/sched/core.c:5328 [inline] __schedule+0x184f/0x4c30 kernel/sched/core.c:6690 __schedule_loop kernel/sched/core.c:6767 [inline] schedule+0x14b/0x320 kernel/sched/core.c:6782 schedule_timeout+0xb0/0x310 kernel/time/timer.c:2591 do_wait_for_common kernel/sched/completion.c:95 [inline] __wait_for_common kernel/sched/completion.c:116 [inline] wait_for_common kernel/sched/completion.c:127 [inline] wait_for_completion+0x355/0x620 kernel/sched/completion.c:148 __flush_work+0xa37/0xc50 kernel/workqueue.c:4217 __cancel_work_sync+0xbc/0x110 kernel/workqueue.c:4337 rfkill_unregister+0x96/0x230 net/rfkill/core.c:1139 nfc_unregister_device+0x96/0x2a0 net/nfc/core.c:1167 virtual_ncidev_close+0x56/0x90 drivers/nfc/virtual_ncidev.c:172 __fput+0x241/0x880 fs/file_table.c:431 task_work_run+0x251/0x310 kernel/task_work.c:239 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+0x168/0x370 kernel/entry/common.c:218 do_syscall_64+0x100/0x230 arch/x86/entry/common.c:89 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f69b797e719 RSP: 002b:00007ffdb68d5ca8 EFLAGS: 00000246 ORIG_RAX: 00000000000001b4 RAX: 0000000000000000 RBX: 000000000010875f RCX: 00007f69b797e719 RDX: 0000000000000000 RSI: 000000000000001e RDI: 0000000000000003 RBP: 00007f69b7b37a80 R08: 0000000000000001 R09: 00007ffdb68d5f9f R10: 00007f69b7800000 R11: 0000000000000246 R12: 0000000000108b0a R13: 00007ffdb68d5db0 R14: 0000000000000032 R15: ffffffffffffffff INFO: task syz.8.2568:16325 blocked for more than 144 seconds. Not tainted 6.12.0-rc6-syzkaller-00279-gde2f378f2b77 #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz.8.2568 state:D stack:26640 pid:16325 tgid:16324 ppid:14960 flags:0x00000004 Call Trace: context_switch kernel/sched/core.c:5328 [inline] __schedule+0x184f/0x4c30 kernel/sched/core.c:6690 __schedule_loop kernel/sched/core.c:6767 [inline] schedule+0x14b/0x320 kernel/sched/core.c:6782 schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6839 __mutex_lock_common kernel/locking/mutex.c:684 [inline] __mutex_lock+0x6a7/0xd70 kernel/locking/mutex.c:752 rfkill_fop_open+0x131/0x850 net/rfkill/core.c:1178 misc_open+0x2ce/0x340 drivers/char/misc.c:165 chrdev_open+0x523/0x600 fs/char_dev.c:414 do_dentry_open+0x97a/0x1460 fs/open.c:958 vfs_open+0x3e/0x330 fs/open.c:1088 do_open fs/namei.c:3774 [inline] path_openat+0x2c84/0x3590 fs/namei.c:3933 do_filp_open+0x235/0x490 fs/namei.c:3960 do_sys_openat2+0x13e/0x1d0 fs/open.c:1415 do_sys_open fs/open.c:1430 [inline] __do_sys_openat fs/open.c:1446 [inline] __se_sys_openat fs/open.c:1441 [inline] __x64_sys_openat+0x247/0x2a0 fs/open.c:1441 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f472ab7e719 RSP: 002b:00007f472b9fa038 EFLAGS: 00000246 ORIG_RAX: 0000000000000101 RAX: ffffffffffffffda RBX: 00007f472ad35f80 RCX: 00007f472ab7e719 RDX: 0000000000000801 RSI: 0000000020000040 RDI: ffffffffffffff9c RBP: 00007f472abf139e R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000000 R14: 00007f472ad35f80 R15: 00007ffe0b82dc88 INFO: task syz.8.2568:16330 blocked for more than 144 seconds. Not tainted 6.12.0-rc6-syzkaller-00279-gde2f378f2b77 #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz.8.2568 state:D stack:27360 pid:16330 tgid:16324 ppid:14960 flags:0x00000004 Call Trace: context_switch kernel/sched/core.c:5328 [inline] __schedule+0x184f/0x4c30 kernel/sched/core.c:6690 __schedule_loop kernel/sched/core.c:6767 [inline] schedule+0x14b/0x320 kernel/sched/core.c:6782 schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6839 __mutex_lock_common kernel/locking/mutex.c:684 [inline] __mutex_lock+0x6a7/0xd70 kernel/locking/mutex.c:752 misc_open+0x54/0x340 drivers/char/misc.c:129 chrdev_open+0x523/0x600 fs/char_dev.c:414 do_dentry_open+0x97a/0x1460 fs/open.c:958 vfs_open+0x3e/0x330 fs/open.c:1088 do_open fs/namei.c:3774 [inline] path_openat+0x2c84/0x3590 fs/namei.c:3933 do_filp_open+0x235/0x490 fs/namei.c:3960 do_sys_openat2+0x13e/0x1d0 fs/open.c:1415 do_sys_open fs/open.c:1430 [inline] __do_sys_openat fs/open.c:1446 [inline] __se_sys_openat fs/open.c:1441 [inline] __x64_sys_openat+0x247/0x2a0 fs/open.c:1441 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f472ab7e719 RSP: 002b:00007f472b9d9038 EFLAGS: 00000246 ORIG_RAX: 0000000000000101 RAX: ffffffffffffffda RBX: 00007f472ad36058 RCX: 00007f472ab7e719 RDX: 0000000000000042 RSI: 0000000020000040 RDI: ffffffffffffff9c RBP: 00007f472abf139e R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000001 R14: 00007f472ad36058 R15: 00007ffe0b82dc88 INFO: task syz.7.2582:16382 blocked for more than 144 seconds. Not tainted 6.12.0-rc6-syzkaller-00279-gde2f378f2b77 #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz.7.2582 state:D stack:25536 pid:16382 tgid:16380 ppid:13472 flags:0x00004004 Call Trace: context_switch kernel/sched/core.c:5328 [inline] __schedule+0x184f/0x4c30 kernel/sched/core.c:6690 __schedule_loop kernel/sched/core.c:6767 [inline] schedule+0x14b/0x320 kernel/sched/core.c:6782 schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6839 __mutex_lock_common kernel/locking/mutex.c:684 [inline] __mutex_lock+0x6a7/0xd70 kernel/locking/mutex.c:752 misc_open+0x54/0x340 drivers/char/misc.c:129 chrdev_open+0x523/0x600 fs/char_dev.c:414 do_dentry_open+0x97a/0x1460 fs/open.c:958 vfs_open+0x3e/0x330 fs/open.c:1088 do_open fs/namei.c:3774 [inline] path_openat+0x2c84/0x3590 fs/namei.c:3933 do_filp_open+0x235/0x490 fs/namei.c:3960 do_sys_openat2+0x13e/0x1d0 fs/open.c:1415 do_sys_open fs/open.c:1430 [inline] __do_sys_openat fs/open.c:1446 [inline] __se_sys_openat fs/open.c:1441 [inline] __x64_sys_openat+0x247/0x2a0 fs/open.c:1441 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f53c037d0b0 RSP: 002b:00007f53c120def0 EFLAGS: 00000293 ORIG_RAX: 0000000000000101 RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f53c037d0b0 RDX: 0000000000000002 RSI: 00007f53c03f1134 RDI: 00000000ffffff9c RBP: 00007f53c03f1134 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000000 R13: 0000000000000036 R14: 0000000020000380 R15: 00007ffdc0f1d788 INFO: task syz.0.2584:16387 blocked for more than 145 seconds. Not tainted 6.12.0-rc6-syzkaller-00279-gde2f378f2b77 #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz.0.2584 state:D stack:27088 pid:16387 tgid:16386 ppid:11869 flags:0x00000004 Call Trace: context_switch kernel/sched/core.c:5328 [inline] __schedule+0x184f/0x4c30 kernel/sched/core.c:6690 __schedule_loop kernel/sched/core.c:6767 [inline] schedule+0x14b/0x320 kernel/sched/core.c:6782 schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6839 __mutex_lock_common kernel/locking/mutex.c:684 [inline] __mutex_lock+0x6a7/0xd70 kernel/locking/mutex.c:752 misc_open+0x54/0x340 drivers/char/misc.c:129 chrdev_open+0x523/0x600 fs/char_dev.c:414 do_dentry_open+0x97a/0x1460 fs/open.c:958 vfs_open+0x3e/0x330 fs/open.c:1088 do_open fs/namei.c:3774 [inline] path_openat+0x2c84/0x3590 fs/namei.c:3933 do_filp_open+0x235/0x490 fs/namei.c:3960 do_sys_openat2+0x13e/0x1d0 fs/open.c:1415 do_sys_open fs/open.c:1430 [inline] __do_sys_openat fs/open.c:1446 [inline] __se_sys_openat fs/open.c:1441 [inline] __x64_sys_openat+0x247/0x2a0 fs/open.c:1441 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7fd78a17e719 RSP: 002b:00007fd7885f6038 EFLAGS: 00000246 ORIG_RAX: 0000000000000101 RAX: ffffffffffffffda RBX: 00007fd78a335f80 RCX: 00007fd78a17e719 RDX: 0000000000000002 RSI: 0000000020000380 RDI: ffffffffffffff9c RBP: 00007fd78a1f139e R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000000 R14: 00007fd78a335f80 R15: 00007fffc936d2a8 INFO: task syz-executor:16396 blocked for more than 145 seconds. Not tainted 6.12.0-rc6-syzkaller-00279-gde2f378f2b77 #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor state:D stack:26816 pid:16396 tgid:16396 ppid:1 flags:0x00000000 Call Trace: context_switch kernel/sched/core.c:5328 [inline] __schedule+0x184f/0x4c30 kernel/sched/core.c:6690 __schedule_loop kernel/sched/core.c:6767 [inline] schedule+0x14b/0x320 kernel/sched/core.c:6782 schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6839 __mutex_lock_common kernel/locking/mutex.c:684 [inline] __mutex_lock+0x6a7/0xd70 kernel/locking/mutex.c:752 misc_open+0x54/0x340 drivers/char/misc.c:129 chrdev_open+0x523/0x600 fs/char_dev.c:414 do_dentry_open+0x97a/0x1460 fs/open.c:958 vfs_open+0x3e/0x330 fs/open.c:1088 do_open fs/namei.c:3774 [inline] path_openat+0x2c84/0x3590 fs/namei.c:3933 do_filp_open+0x235/0x490 fs/namei.c:3960 do_sys_openat2+0x13e/0x1d0 fs/open.c:1415 do_sys_open fs/open.c:1430 [inline] __do_sys_openat fs/open.c:1446 [inline] __se_sys_openat fs/open.c:1441 [inline] __x64_sys_openat+0x247/0x2a0 fs/open.c:1441 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f8eb897d031 RSP: 002b:00007ffc85cb4860 EFLAGS: 00000202 ORIG_RAX: 0000000000000101 RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f8eb897d031 RDX: 0000000000000002 RSI: 00007f8eb89f1c44 RDI: 00000000ffffff9c RBP: 00007f8eb89f1c44 R08: 0000000000000000 R09: 00007f8eb966d6c0 R10: 0000000000000000 R11: 0000000000000202 R12: 000000000000000c R13: 0000000000000003 R14: 0000000000000009 R15: 0000000000000000 Showing all locks held in the system: 3 locks held by kworker/0:1/9: #0: ffff88801ac78948 ((wq_completion)events){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3204 [inline] #0: ffff88801ac78948 ((wq_completion)events){+.+.}-{0:0}, at: process_scheduled_works+0x93b/0x1850 kernel/workqueue.c:3310 #1: ffffc900000e7d00 ((work_completion)(&rfkill->uevent_work)){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3205 [inline] #1: ffffc900000e7d00 ((work_completion)(&rfkill->uevent_work)){+.+.}-{0:0}, at: process_scheduled_works+0x976/0x1850 kernel/workqueue.c:3310 #2: ffffffff8ffaade8 (rfkill_global_mutex){+.+.}-{3:3}, at: rfkill_uevent_work+0x1d/0xb0 net/rfkill/core.c:1046 1 lock held by khungtaskd/30: #0: ffffffff8e937da0 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire include/linux/rcupdate.h:337 [inline] #0: ffffffff8e937da0 (rcu_read_lock){....}-{1:2}, at: rcu_read_lock include/linux/rcupdate.h:849 [inline] #0: ffffffff8e937da0 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x55/0x2a0 kernel/locking/lockdep.c:6720 3 locks held by kworker/1:2/3062: #0: ffff88801ac78948 ((wq_completion)events){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3204 [inline] #0: ffff88801ac78948 ((wq_completion)events){+.+.}-{0:0}, at: process_scheduled_works+0x93b/0x1850 kernel/workqueue.c:3310 #1: ffffc9000c33fd00 ((work_completion)(&rfkill_global_led_trigger_work)){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3205 [inline] #1: ffffc9000c33fd00 ((work_completion)(&rfkill_global_led_trigger_work)){+.+.}-{0:0}, at: process_scheduled_works+0x976/0x1850 kernel/workqueue.c:3310 #2: ffffffff8ffaade8 (rfkill_global_mutex){+.+.}-{3:3}, at: rfkill_global_led_trigger_worker+0x27/0xd0 net/rfkill/core.c:182 2 locks held by getty/5595: #0: ffff888030ced0a0 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x25/0x70 drivers/tty/tty_ldisc.c:243 #1: ffffc900032232f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x6a6/0x1e00 drivers/tty/n_tty.c:2211 4 locks held by kworker/1:5/5905: #0: ffff88801ac78948 ((wq_completion)events){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3204 [inline] #0: ffff88801ac78948 ((wq_completion)events){+.+.}-{0:0}, at: process_scheduled_works+0x93b/0x1850 kernel/workqueue.c:3310 #1: ffffc9000309fd00 ((work_completion)(&rfkill->sync_work)){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3205 [inline] #1: ffffc9000309fd00 ((work_completion)(&rfkill->sync_work)){+.+.}-{0:0}, at: process_scheduled_works+0x976/0x1850 kernel/workqueue.c:3310 #2: ffffffff8ffaade8 (rfkill_global_mutex){+.+.}-{3:3}, at: rfkill_sync_work+0x23/0x220 net/rfkill/core.c:1055 #3: ffff88805bff2100 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:1014 [inline] #3: ffff88805bff2100 (&dev->mutex){....}-{3:3}, at: nfc_dev_down net/nfc/core.c:143 [inline] #3: ffff88805bff2100 (&dev->mutex){....}-{3:3}, at: nfc_rfkill_set_block+0x50/0x310 net/nfc/core.c:179 4 locks held by kworker/u8:12/6409: #0: ffff88801bae5948 ((wq_completion)netns){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3204 [inline] #0: ffff88801bae5948 ((wq_completion)netns){+.+.}-{0:0}, at: process_scheduled_works+0x93b/0x1850 kernel/workqueue.c:3310 #1: ffffc90004397d00 (net_cleanup_work){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3205 [inline] #1: ffffc90004397d00 (net_cleanup_work){+.+.}-{0:0}, at: process_scheduled_works+0x976/0x1850 kernel/workqueue.c:3310 #2: ffffffff8fcc6e10 (pernet_ops_rwsem){++++}-{3:3}, at: cleanup_net+0x16a/0xcc0 net/core/net_namespace.c:580 #3: ffffffff8ffaade8 (rfkill_global_mutex){+.+.}-{3:3}, at: rfkill_unregister+0xd0/0x230 net/rfkill/core.c:1145 4 locks held by kworker/u8:0/11722: #0: ffff8880b863ea98 (&rq->__lock){-.-.}-{2:2}, at: raw_spin_rq_lock_nested+0x2a/0x140 kernel/sched/core.c:598 #1: ffffc900053c7d00 ((work_completion)(&(&bat_priv->nc.work)->work)){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3205 [inline] #1: ffffc900053c7d00 ((work_completion)(&(&bat_priv->nc.work)->work)){+.+.}-{0:0}, at: process_scheduled_works+0x976/0x1850 kernel/workqueue.c:3310 #2: ffffffff9a625418 (&obj_hash[i].lock){-.-.}-{2:2}, at: debug_object_activate+0x16d/0x510 lib/debugobjects.c:708 #3: ffff888079338d58 (&bat_priv->forw_bat_list_lock){+...}-{2:2}, at: spin_lock_bh include/linux/spinlock.h:356 [inline] #3: ffff888079338d58 (&bat_priv->forw_bat_list_lock){+...}-{2:2}, at: batadv_forw_packet_queue+0x33/0x270 net/batman-adv/send.c:673 1 lock held by syz.6.2541/16222: #0: ffff88805bff2100 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:1014 [inline] #0: ffff88805bff2100 (&dev->mutex){....}-{3:3}, at: nfc_unregister_device+0x63/0x2a0 net/nfc/core.c:1165 2 locks held by syz.8.2568/16325: #0: ffffffff8f190208 (misc_mtx){+.+.}-{3:3}, at: misc_open+0x54/0x340 drivers/char/misc.c:129 #1: ffffffff8ffaade8 (rfkill_global_mutex){+.+.}-{3:3}, at: rfkill_fop_open+0x131/0x850 net/rfkill/core.c:1178 1 lock held by syz.8.2568/16330: #0: ffffffff8f190208 (misc_mtx){+.+.}-{3:3}, at: misc_open+0x54/0x340 drivers/char/misc.c:129 1 lock held by syz.7.2582/16382: #0: ffffffff8f190208 (misc_mtx){+.+.}-{3:3}, at: misc_open+0x54/0x340 drivers/char/misc.c:129 1 lock held by syz.0.2584/16387: #0: ffffffff8f190208 (misc_mtx){+.+.}-{3:3}, at: misc_open+0x54/0x340 drivers/char/misc.c:129 1 lock held by syz-executor/16396: #0: ffffffff8f190208 (misc_mtx){+.+.}-{3:3}, at: misc_open+0x54/0x340 drivers/char/misc.c:129 1 lock held by syz.5.2594/16411: #0: ffffffff8f190208 (misc_mtx){+.+.}-{3:3}, at: misc_open+0x54/0x340 drivers/char/misc.c:129 1 lock held by syz.9.2607/16458: #0: ffffffff8f190208 (misc_mtx){+.+.}-{3:3}, at: misc_open+0x54/0x340 drivers/char/misc.c:129 1 lock held by syz-executor/16461: #0: ffffffff8f190208 (misc_mtx){+.+.}-{3:3}, at: misc_open+0x54/0x340 drivers/char/misc.c:129 1 lock held by syz-executor/16463: #0: ffffffff8f190208 (misc_mtx){+.+.}-{3:3}, at: misc_open+0x54/0x340 drivers/char/misc.c:129 1 lock held by syz-executor/16465: #0: ffffffff8f190208 (misc_mtx){+.+.}-{3:3}, at: misc_open+0x54/0x340 drivers/char/misc.c:129 1 lock held by syz-executor/16467: #0: ffffffff8f190208 (misc_mtx){+.+.}-{3:3}, at: misc_open+0x54/0x340 drivers/char/misc.c:129 1 lock held by syz-executor/16469: #0: ffffffff8f190208 (misc_mtx){+.+.}-{3:3}, at: misc_open+0x54/0x340 drivers/char/misc.c:129 1 lock held by syz-executor/16471: #0: ffffffff8f190208 (misc_mtx){+.+.}-{3:3}, at: misc_open+0x54/0x340 drivers/char/misc.c:129 1 lock held by syz-executor/16473: #0: ffffffff8f190208 (misc_mtx){+.+.}-{3:3}, at: misc_open+0x54/0x340 drivers/char/misc.c:129 1 lock held by syz-executor/16475: #0: ffffffff8f190208 (misc_mtx){+.+.}-{3:3}, at: misc_open+0x54/0x340 drivers/char/misc.c:129 1 lock held by syz-executor/16477: #0: ffffffff8f190208 (misc_mtx){+.+.}-{3:3}, at: misc_open+0x54/0x340 drivers/char/misc.c:129 1 lock held by syz-executor/16479: #0: ffffffff8f190208 (misc_mtx){+.+.}-{3:3}, at: misc_open+0x54/0x340 drivers/char/misc.c:129 1 lock held by syz-executor/16481: #0: ffffffff8f190208 (misc_mtx){+.+.}-{3:3}, at: misc_open+0x54/0x340 drivers/char/misc.c:129 1 lock held by syz-executor/16483: #0: ffffffff8f190208 (misc_mtx){+.+.}-{3:3}, at: misc_open+0x54/0x340 drivers/char/misc.c:129 1 lock held by syz-executor/16485: #0: ffffffff8f190208 (misc_mtx){+.+.}-{3:3}, at: misc_open+0x54/0x340 drivers/char/misc.c:129 1 lock held by syz-executor/16487: #0: ffffffff8f190208 (misc_mtx){+.+.}-{3:3}, at: misc_open+0x54/0x340 drivers/char/misc.c:129 1 lock held by syz-executor/16489: #0: ffffffff8f190208 (misc_mtx){+.+.}-{3:3}, at: misc_open+0x54/0x340 drivers/char/misc.c:129 1 lock held by syz-executor/16491: #0: ffffffff8f190208 (misc_mtx){+.+.}-{3:3}, at: misc_open+0x54/0x340 drivers/char/misc.c:129 ============================================= NMI backtrace for cpu 0 CPU: 0 UID: 0 PID: 30 Comm: khungtaskd Not tainted 6.12.0-rc6-syzkaller-00279-gde2f378f2b77 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/30/2024 Call Trace: __dump_stack lib/dump_stack.c:94 [inline] dump_stack_lvl+0x241/0x360 lib/dump_stack.c:120 nmi_cpu_backtrace+0x49c/0x4d0 lib/nmi_backtrace.c:113 nmi_trigger_cpumask_backtrace+0x198/0x320 lib/nmi_backtrace.c:62 trigger_all_cpu_backtrace include/linux/nmi.h:162 [inline] check_hung_uninterruptible_tasks kernel/hung_task.c:223 [inline] watchdog+0xff4/0x1040 kernel/hung_task.c:379 kthread+0x2f2/0x390 kernel/kthread.c:389 ret_from_fork+0x4d/0x80 arch/x86/kernel/process.c:147 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244 Sending NMI from CPU 0 to CPUs 1: NMI backtrace for cpu 1 CPU: 1 UID: 0 PID: 11722 Comm: kworker/u8:0 Not tainted 6.12.0-rc6-syzkaller-00279-gde2f378f2b77 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/30/2024 Workqueue: events_unbound toggle_allocation_gate RIP: 0010:mark_held_locks kernel/locking/lockdep.c:4313 [inline] RIP: 0010:__trace_hardirqs_on_caller kernel/locking/lockdep.c:4347 [inline] RIP: 0010:lockdep_hardirqs_on_prepare+0x395/0x780 kernel/locking/lockdep.c:4406 Code: 31 0f 83 a1 00 00 00 4c 89 e0 48 c1 e8 03 0f b6 04 10 84 c0 75 50 8b 43 20 a9 00 00 04 00 74 28 31 d2 a9 00 00 03 00 0f 94 c2 <83> f2 07 48 8b 7c 24 10 48 89 de e8 3b b0 00 00 48 ba 00 00 00 00 RSP: 0018:ffffc900053c7680 EFLAGS: 00000046 RAX: 0000000000040007 RBX: ffff88802bcba980 RCX: ffffffff8170bffa RDX: 0000000000000001 RSI: 0000000000000008 RDI: ffffffff942cd800 RBP: ffffc900053c7728 R08: ffffffff942cd807 R09: 1ffffffff2859b00 R10: dffffc0000000000 R11: fffffbfff2859b01 R12: ffff88802bcba9a0 R13: 0000000000000004 R14: ffff88802bcba8d8 R15: 1ffff1100579751b FS: 0000000000000000(0000) GS:ffff8880b8700000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f2bbe667d60 CR3: 000000000e734000 CR4: 0000000000350ef0 Call Trace: trace_hardirqs_on+0x28/0x40 kernel/trace/trace_preemptirq.c:61 __text_poke+0x9bf/0xd30 arch/x86/kernel/alternative.c:1959 text_poke arch/x86/kernel/alternative.c:1984 [inline] text_poke_bp_batch+0x8cd/0xb30 arch/x86/kernel/alternative.c:2373 text_poke_flush arch/x86/kernel/alternative.c:2486 [inline] text_poke_finish+0x30/0x50 arch/x86/kernel/alternative.c:2493 arch_jump_label_transform_apply+0x1c/0x30 arch/x86/kernel/jump_label.c:146 static_key_enable_cpuslocked+0x136/0x260 kernel/jump_label.c:210 static_key_enable+0x1a/0x20 kernel/jump_label.c:223 toggle_allocation_gate+0xbc/0x260 mm/kfence/core.c:849 process_one_work kernel/workqueue.c:3229 [inline] process_scheduled_works+0xa65/0x1850 kernel/workqueue.c:3310 worker_thread+0x870/0xd30 kernel/workqueue.c:3391 kthread+0x2f2/0x390 kernel/kthread.c:389 ret_from_fork+0x4d/0x80 arch/x86/kernel/process.c:147 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244