INFO: task kworker/0:2:19655 blocked for more than 143 seconds.
      Not tainted 5.15.114-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kworker/0:2     state:D stack:23672 pid:19655 ppid:     2 flags:0x00004000
Workqueue: events rfkill_sync_work
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5026 [inline]
 __schedule+0x12c4/0x4590 kernel/sched/core.c:6372
 schedule+0x11b/0x1f0 kernel/sched/core.c:6455
 schedule_preempt_disabled+0xf/0x20 kernel/sched/core.c:6514
 __mutex_lock_common+0xe34/0x25a0 kernel/locking/mutex.c:669
 __mutex_lock kernel/locking/mutex.c:729 [inline]
 mutex_lock_nested+0x17/0x20 kernel/locking/mutex.c:743
 device_lock include/linux/device.h:760 [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:345
 rfkill_sync_work+0x8a/0xe0 net/rfkill/core.c:1030
 process_one_work+0x8a1/0x10c0 kernel/workqueue.c:2307
 worker_thread+0xaca/0x1280 kernel/workqueue.c:2454
 kthread+0x3f6/0x4f0 kernel/kthread.c:319
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:298
 </TASK>
INFO: task kworker/0:10:21206 blocked for more than 143 seconds.
      Not tainted 5.15.114-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kworker/0:10    state:D stack:24312 pid:21206 ppid:     2 flags:0x00004000
Workqueue: events rfkill_global_led_trigger_worker
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5026 [inline]
 __schedule+0x12c4/0x4590 kernel/sched/core.c:6372
 schedule+0x11b/0x1f0 kernel/sched/core.c:6455
 schedule_preempt_disabled+0xf/0x20 kernel/sched/core.c:6514
 __mutex_lock_common+0xe34/0x25a0 kernel/locking/mutex.c:669
 __mutex_lock kernel/locking/mutex.c:729 [inline]
 mutex_lock_nested+0x17/0x20 kernel/locking/mutex.c:743
 rfkill_global_led_trigger_worker+0x23/0xd0 net/rfkill/core.c:181
 process_one_work+0x8a1/0x10c0 kernel/workqueue.c:2307
 worker_thread+0xaca/0x1280 kernel/workqueue.c:2454
 kthread+0x3f6/0x4f0 kernel/kthread.c:319
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:298
 </TASK>
INFO: task syz-executor.4:26934 blocked for more than 143 seconds.
      Not tainted 5.15.114-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.4  state:D stack:27168 pid:26934 ppid:  3556 flags:0x00004004
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5026 [inline]
 __schedule+0x12c4/0x4590 kernel/sched/core.c:6372
 schedule+0x11b/0x1f0 kernel/sched/core.c:6455
 schedule_timeout+0xac/0x300 kernel/time/timer.c:1860
 do_wait_for_common+0x2d9/0x480 kernel/sched/completion.c:85
 __wait_for_common kernel/sched/completion.c:106 [inline]
 wait_for_common kernel/sched/completion.c:117 [inline]
 wait_for_completion+0x48/0x60 kernel/sched/completion.c:138
 __flush_work+0x124/0x1a0 kernel/workqueue.c:3091
 __cancel_work_timer+0x519/0x6a0 kernel/workqueue.c:3178
 rfkill_unregister+0x92/0x220 net/rfkill/core.c:1112
 nfc_unregister_device+0x92/0x290 net/nfc/core.c:1167
 virtual_ncidev_close+0x55/0x90 drivers/nfc/virtual_ncidev.c:166
 __fput+0x3bf/0x890 fs/file_table.c:280
 task_work_run+0x129/0x1a0 kernel/task_work.c:164
 tracehook_notify_resume include/linux/tracehook.h:189 [inline]
 exit_to_user_mode_loop+0x106/0x130 kernel/entry/common.c:175
 exit_to_user_mode_prepare+0xb1/0x140 kernel/entry/common.c:208
 __syscall_exit_to_user_mode_work kernel/entry/common.c:290 [inline]
 syscall_exit_to_user_mode+0x5d/0x250 kernel/entry/common.c:301
 do_syscall_64+0x49/0xb0 arch/x86/entry/common.c:86
 entry_SYSCALL_64_after_hwframe+0x61/0xcb
RIP: 0033:0x7f1f772d801b
RSP: 002b:00007ffca70738d0 EFLAGS: 00000293 ORIG_RAX: 0000000000000003
RAX: 0000000000000000 RBX: 0000000000000004 RCX: 00007f1f772d801b
RDX: 0000000000000000 RSI: 0000001b311221e0 RDI: 0000000000000003
RBP: 00007f1f77447980 R08: 0000000000000000 R09: 0000000025118a5c
R10: 0000000000000000 R11: 0000000000000293 R12: 00000000000f236a
R13: 00007ffca70739d0 R14: 00007f1f77446050 R15: 0000000000000032
 </TASK>

Showing all locks held in the system:
1 lock held by khungtaskd/27:
 #0: ffffffff8c91c5e0 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire+0x0/0x30
4 locks held by klogd/2948:
 #0: ffff8880b9b39698 (&rq->__lock){-.-.}-{2:2}, at: raw_spin_rq_lock_nested+0x26/0x140 kernel/sched/core.c:475
 #1: ffff8880b9b27848 (&per_cpu_ptr(group->pcpu, cpu)->seq){-.-.}-{0:0}, at: psi_task_switch+0x53d/0x810 kernel/sched/psi.c:891
 #2: ffff88807efd8a28 (&p->pi_lock){-.-.}-{2:2}, at: try_to_wake_up+0xae/0x1300 kernel/sched/core.c:4026
 #3: ffff8880b9b39698 (&rq->__lock){-.-.}-{2:2}, at: raw_spin_rq_lock_nested+0x26/0x140 kernel/sched/core.c:475
2 locks held by getty/3259:
 #0: ffff888024c7c098 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x21/0x70 drivers/tty/tty_ldisc.c:252
 #1: ffffc90002bb32e8 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x6af/0x1da0 drivers/tty/n_tty.c:2147
4 locks held by kworker/0:2/19655:
 #0: ffff888011c64d38 ((wq_completion)events){+.+.}-{0:0}, at: process_one_work+0x78a/0x10c0 kernel/workqueue.c:2280
 #1: ffffc90008af7d20 ((work_completion)(&rfkill->sync_work)){+.+.}-{0:0}, at: process_one_work+0x7d0/0x10c0 kernel/workqueue.c:2282
 #2: ffffffff8dc697e8 (rfkill_global_mutex){+.+.}-{3:3}, at: rfkill_sync_work+0x25/0xe0 net/rfkill/core.c:1028
 #3: ffff88807e731190 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:760 [inline]
 #3: ffff88807e731190 (&dev->mutex){....}-{3:3}, at: nfc_dev_down net/nfc/core.c:143 [inline]
 #3: ffff88807e731190 (&dev->mutex){....}-{3:3}, at: nfc_rfkill_set_block+0x4c/0x2f0 net/nfc/core.c:179
3 locks held by kworker/0:10/21206:
 #0: ffff888011c64d38 ((wq_completion)events){+.+.}-{0:0}, at: process_one_work+0x78a/0x10c0 kernel/workqueue.c:2280
 #1: ffffc9000460fd20 ((work_completion)(&rfkill_global_led_trigger_work)){+.+.}-{0:0}, at: process_one_work+0x7d0/0x10c0 kernel/workqueue.c:2282
 #2: ffffffff8dc697e8 (rfkill_global_mutex){+.+.}-{3:3}, at: rfkill_global_led_trigger_worker+0x23/0xd0 net/rfkill/core.c:181
1 lock held by syz-executor.4/26934:
 #0: ffff88807e731190 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:760 [inline]
 #0: ffff88807e731190 (&dev->mutex){....}-{3:3}, at: nfc_unregister_device+0x5f/0x290 net/nfc/core.c:1165
2 locks held by syz-executor.4/27037:
 #0: ffff88801edd4518 (&data->open_mutex){+.+.}-{3:3}, at: vhci_create_device+0x34/0x590 drivers/bluetooth/hci_vhci.c:149
 #1: ffffffff8dc697e8 (rfkill_global_mutex){+.+.}-{3:3}, at: rfkill_register+0x30/0x880 net/rfkill/core.c:1045
2 locks held by syz-executor.4/27044:
 #0: ffff888023bb0518 (&data->open_mutex){+.+.}-{3:3}, at: vhci_create_device+0x34/0x590 drivers/bluetooth/hci_vhci.c:149
 #1: ffffffff8dc697e8 (rfkill_global_mutex){+.+.}-{3:3}, at: rfkill_register+0x30/0x880 net/rfkill/core.c:1045

=============================================

NMI backtrace for cpu 1
CPU: 1 PID: 27 Comm: khungtaskd Not tainted 5.15.114-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/25/2023
Call Trace:
 <TASK>
 __dump_stack lib/dump_stack.c:88 [inline]
 dump_stack_lvl+0x1e3/0x2cb lib/dump_stack.c:106
 nmi_cpu_backtrace+0x46a/0x4a0 lib/nmi_backtrace.c:111
 nmi_trigger_cpumask_backtrace+0x181/0x2a0 lib/nmi_backtrace.c:62
 trigger_all_cpu_backtrace include/linux/nmi.h:148 [inline]
 check_hung_uninterruptible_tasks kernel/hung_task.c:210 [inline]
 watchdog+0xe72/0xeb0 kernel/hung_task.c:295
 kthread+0x3f6/0x4f0 kernel/kthread.c:319
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:298
 </TASK>
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 PID: 464 Comm: kworker/u4:3 Not tainted 5.15.114-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/25/2023
Workqueue:  0x0 (bat_events)
RIP: 0010:attach_task+0x0/0x180 kernel/sched/fair.c:8301
Code: ff df 0f 84 9f fb ff ff e9 8f fc ff ff 89 e9 80 e1 07 80 c1 03 38 c1 0f 8c 1e fe ff ff 48 89 ef e8 25 e4 6b 00 e9 11 fe ff ff <41> 57 41 56 41 54 53 49 89 f6 49 89 ff 48 c7 c0 44 ed e3 8d 48 c1
RSP: 0018:ffffc90002ebf378 EFLAGS: 00000046
RAX: dffffc0000000000 RBX: ffff88807e743c68 RCX: 1ffff920005d7f27
RDX: ffff88807e743c68 RSI: ffff88807e743b80 RDI: ffff8880b9a39680
RBP: ffffc90002ebfa10 R08: ffffffff8f5cc000 R09: ffffffff8f5cc008
R10: ffffffff8f5cc018 R11: ffffffff8f5cc010 R12: ffffc90002ebf938
R13: ffffc90002ebf978 R14: 000000000000518e R15: ffff88807e743b80
FS:  0000000000000000(0000) GS:ffff8880b9a00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000055c47173d050 CR3: 0000000079ca1000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <NMI>
 </NMI>
 <TASK>
 attach_tasks kernel/sched/fair.c:8340 [inline]
 load_balance+0x5828/0x7c60 kernel/sched/fair.c:10266
 newidle_balance+0x4d4/0xef0 kernel/sched/fair.c:11226
 pick_next_task_fair+0x27d/0x9c0 kernel/sched/fair.c:7624
 __pick_next_task kernel/sched/core.c:5646 [inline]
 pick_next_task kernel/sched/core.c:5754 [inline]
 __schedule+0x86d/0x4590 kernel/sched/core.c:6336
 schedule+0x11b/0x1f0 kernel/sched/core.c:6455
 worker_thread+0xf56/0x1280 kernel/workqueue.c:2475
 kthread+0x3f6/0x4f0 kernel/kthread.c:319
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:298
 </TASK>