INFO: task kworker/0:7:7359 blocked for more than 143 seconds.
      Not tainted 6.16.0-syzkaller-12063-g37816488247d #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kworker/0:7     state:D stack:24016 pid:7359  tgid:7359  ppid:2      task_flags:0x4208060 flags:0x00004000
Workqueue: events rfkill_global_led_trigger_worker
Call Trace:
 <TASK>
 __schedule+0x1798/0x4cc0
 schedule+0x165/0x360
 schedule_preempt_disabled+0x13/0x30
 __mutex_lock+0x7e6/0x1360
 rfkill_global_led_trigger_worker+0x27/0xd0
 process_scheduled_works+0xae1/0x17b0
 worker_thread+0x8a0/0xda0
 kthread+0x711/0x8a0
 ret_from_fork+0x3fc/0x770
 ret_from_fork_asm+0x1a/0x30
 </TASK>
INFO: task syz.1.2777:16685 blocked for more than 143 seconds.
      Not tainted 6.16.0-syzkaller-12063-g37816488247d #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.1.2777      state:D stack:26600 pid:16685 tgid:16684 ppid:5886   task_flags:0x400140 flags:0x00004006
Call Trace:
 <TASK>
 __schedule+0x1798/0x4cc0
 schedule+0x165/0x360
 schedule_preempt_disabled+0x13/0x30
 __mutex_lock+0x7e6/0x1360
 rfkill_unregister+0xc8/0x220
 nfc_unregister_device+0x96/0x2a0
 virtual_ncidev_close+0x56/0x90
 __fput+0x44c/0xa70
 task_work_run+0x1d4/0x260
 get_signal+0x11ed/0x1340
 arch_do_signal_or_restart+0x9a/0x750
 exit_to_user_mode_loop+0x75/0x110
 do_syscall_64+0x2bd/0x3b0
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f893458ebe9
RSP: 002b:00007f89354e3038 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
RAX: fffffffffffffff2 RBX: 00007f89347b5fa0 RCX: 00007f893458ebe9
RDX: 00000000000000fe RSI: 0000200000000580 RDI: 0000000000000005
RBP: 00007f8934611e19 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f89347b6038 R14: 00007f89347b5fa0 R15: 00007ffe1dab1ec8
 </TASK>
INFO: task syz.1.2777:16693 blocked for more than 143 seconds.
      Not tainted 6.16.0-syzkaller-12063-g37816488247d #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.1.2777      state:D stack:26792 pid:16693 tgid:16684 ppid:5886   task_flags:0x400040 flags:0x00004006
Call Trace:
 <TASK>
 __schedule+0x1798/0x4cc0
 schedule+0x165/0x360
 schedule_preempt_disabled+0x13/0x30
 __mutex_lock+0x7e6/0x1360
 rfkill_unregister+0xc8/0x220
 nfc_unregister_device+0x96/0x2a0
 virtual_ncidev_close+0x56/0x90
 __fput+0x44c/0xa70
 task_work_run+0x1d4/0x260
 get_signal+0x11ed/0x1340
 arch_do_signal_or_restart+0x9a/0x750
 exit_to_user_mode_loop+0x75/0x110
 do_syscall_64+0x2bd/0x3b0
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f893458ebe9
RSP: 002b:00007f89354c2038 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
RAX: fffffffffffffff2 RBX: 00007f89347b6090 RCX: 00007f893458ebe9
RDX: 00000000000000ee RSI: 00002000000006c0 RDI: 0000000000000007
RBP: 00007f8934611e19 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f89347b6128 R14: 00007f89347b6090 R15: 00007ffe1dab1ec8
 </TASK>
INFO: task syz.0.2780:16699 blocked for more than 143 seconds.
      Not tainted 6.16.0-syzkaller-12063-g37816488247d #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.0.2780      state:D stack:24328 pid:16699 tgid:16695 ppid:5847   task_flags:0x400140 flags:0x00004006
Call Trace:
 <TASK>
 __schedule+0x1798/0x4cc0
 schedule+0x165/0x360
 schedule_preempt_disabled+0x13/0x30
 __mutex_lock+0x7e6/0x1360
 nfc_rfkill_set_block+0x50/0x2e0
 rfkill_set_block+0x1d2/0x440
 rfkill_fop_write+0x44b/0x570
 vfs_write+0x27e/0xa90
 ksys_write+0x145/0x250
 do_syscall_64+0xfa/0x3b0
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f1842d8ebe9
RSP: 002b:00007f1843bb4038 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 00007f1842fb5fa0 RCX: 00007f1842d8ebe9
RDX: 0000000000000008 RSI: 0000200000000080 RDI: 0000000000000007
RBP: 00007f1842e11e19 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f1842fb6038 R14: 00007f1842fb5fa0 R15: 00007fff0f1e0618
 </TASK>

Showing all locks held in the system:
1 lock held by khungtaskd/34:
 #0: ffffffff8e139ee0 (rcu_read_lock){....}-{1:3}, at: debug_show_all_locks+0x2e/0x180
2 locks held by getty/5672:
 #0: ffff888021e570a0 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x25/0x70
 #1: ffffc900029062f0 (&ldata->atomic_read_lock){+.+.}-{4:4}, at: n_tty_read+0x43e/0x1400
3 locks held by kworker/0:7/7359:
 #0: ffff88801a480d48 ((wq_completion)events){+.+.}-{0:0}, at: process_scheduled_works+0x9b4/0x17b0
 #1: ffffc900069d7bc0 ((work_completion)(&rfkill_global_led_trigger_work)){+.+.}-{0:0}, at: process_scheduled_works+0x9ef/0x17b0
 #2: ffffffff8f80e4a8 (rfkill_global_mutex){+.+.}-{4:4}, at: rfkill_global_led_trigger_worker+0x27/0xd0
2 locks held by syz.1.2777/16685:
 #0: ffff88812ada2100 (&dev->mutex){....}-{4:4}, at: nfc_unregister_device+0x63/0x2a0
 #1: ffffffff8f80e4a8 (rfkill_global_mutex){+.+.}-{4:4}, at: rfkill_unregister+0xc8/0x220
2 locks held by syz.1.2777/16693:
 #0: ffff888023e91100 (&dev->mutex){....}-{4:4}, at: nfc_unregister_device+0x63/0x2a0
 #1: ffffffff8f80e4a8 (rfkill_global_mutex){+.+.}-{4:4}, at: rfkill_unregister+0xc8/0x220
2 locks held by syz.0.2780/16699:
 #0: ffffffff8f80e4a8 (rfkill_global_mutex){+.+.}-{4:4}, at: rfkill_fop_write+0x191/0x570
 #1: ffff88812ada2100 (&dev->mutex){....}-{4:4}, at: nfc_rfkill_set_block+0x50/0x2e0
2 locks held by syz-executor/16948:
 #0: ffff8881131a2118 (&data->open_mutex){+.+.}-{4:4}, at: vhci_create_device+0x34/0x6e0
 #1: ffffffff8f80e4a8 (rfkill_global_mutex){+.+.}-{4:4}, at: rfkill_register+0x37/0x8e0
2 locks held by syz-executor/16950:
 #0: ffff88810db48918 (&data->open_mutex){+.+.}-{4:4}, at: vhci_create_device+0x34/0x6e0
 #1: ffffffff8f80e4a8 (rfkill_global_mutex){+.+.}-{4:4}, at: rfkill_register+0x37/0x8e0
3 locks held by syz.2.2917/17198:
 #0: ffffffff8f599fb0 (cb_lock){++++}-{4:4}, at: genl_rcv+0x19/0x40
 #1: ffffffff8f599dc8 (genl_mutex){+.+.}-{4:4}, at: genl_rcv_msg+0x10d/0x790
 #2: ffffffff8f80e4a8 (rfkill_global_mutex){+.+.}-{4:4}, at: rfkill_register+0x37/0x8e0
2 locks held by syz.2.2917/17199:
 #0: ffffffff8f599fb0 (cb_lock){++++}-{4:4}, at: genl_rcv+0x19/0x40
 #1: ffffffff8f599dc8 (genl_mutex){+.+.}-{4:4}, at: genl_rcv_msg+0x10d/0x790
2 locks held by syz-executor/17202:
 #0: ffff888034d67918 (&data->open_mutex){+.+.}-{4:4}, at: vhci_create_device+0x34/0x6e0
 #1: ffffffff8f80e4a8 (rfkill_global_mutex){+.+.}-{4:4}, at: rfkill_register+0x37/0x8e0
2 locks held by syz-executor/17205:
 #0: ffff888023c91118 (&data->open_mutex){+.+.}-{4:4}, at: vhci_create_device+0x34/0x6e0
 #1: ffffffff8f80e4a8 (rfkill_global_mutex){+.+.}-{4:4}, at: rfkill_register+0x37/0x8e0
2 locks held by syz-executor/17206:
 #0: ffff888023c93118 (&data->open_mutex){+.+.}-{4:4}, at: vhci_create_device+0x34/0x6e0
 #1: ffffffff8f80e4a8 (rfkill_global_mutex){+.+.}-{4:4}, at: rfkill_register+0x37/0x8e0
2 locks held by syz-executor/17208:
 #0: ffff888038672118 (&data->open_mutex){+.+.}-{4:4}, at: vhci_create_device+0x34/0x6e0
 #1: ffffffff8f80e4a8 (rfkill_global_mutex){+.+.}-{4:4}, at: rfkill_register+0x37/0x8e0
2 locks held by syz-executor/17211:
 #0: ffff888109784118 (&data->open_mutex){+.+.}-{4:4}, at: vhci_create_device+0x34/0x6e0
 #1: ffffffff8f80e4a8 (rfkill_global_mutex){+.+.}-{4:4}, at: rfkill_register+0x37/0x8e0
2 locks held by syz-executor/17212:
 #0: ffff888064410918 (&data->open_mutex){+.+.}-{4:4}, at: vhci_create_device+0x34/0x6e0
 #1: ffffffff8f80e4a8 (rfkill_global_mutex){+.+.}-{4:4}, at: rfkill_register+0x37/0x8e0

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

NMI backtrace for cpu 0
CPU: 0 UID: 0 PID: 34 Comm: khungtaskd Not tainted 6.16.0-syzkaller-12063-g37816488247d #0 PREEMPT(full) 
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
Call Trace:
 <TASK>
 dump_stack_lvl+0x189/0x250
 nmi_cpu_backtrace+0x39e/0x3d0
 nmi_trigger_cpumask_backtrace+0x17a/0x300
 watchdog+0xf93/0xfe0
 kthread+0x711/0x8a0
 ret_from_fork+0x3fc/0x770
 ret_from_fork_asm+0x1a/0x30
 </TASK>
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 UID: 0 PID: 12 Comm: kworker/u8:0 Not tainted 6.16.0-syzkaller-12063-g37816488247d #0 PREEMPT(full) 
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
Workqueue: bat_events batadv_nc_worker
RIP: 0010:batadv_nc_process_nc_paths+0x25a/0x3a0
Code: 48 b9 00 00 00 00 00 fc ff df 80 3c 08 00 74 08 48 89 ef e8 f8 5e dc f6 48 8b 6d 00 48 85 ed 0f 85 3a ff ff ff e8 46 f4 78 f6 <e8> 71 07 32 00 89 c5 31 ff 89 c6 e8 76 f8 78 f6 85 ed 74 15 e8 fd
RSP: 0018:ffffc900000f79b0 EFLAGS: 00000293
RAX: ffffffff8b46b69a RBX: ffffffff8b46b8c0 RCX: ffff88801c2f5640
RDX: 0000000000000000 RSI: ffffffff8be32660 RDI: ffffffff8be32620
RBP: 0000000000000000 R08: 0000000000000000 R09: ffffffff8b46b5ca
R10: dffffc0000000000 R11: fffffbfff1f468e7 R12: dffffc0000000000
R13: 1ffff1100545a313 R14: 0000000000000001 R15: ffff88802a2d0d80
FS:  0000000000000000(0000) GS:ffff8881a3c21000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007efdf3887e20 CR3: 000000000df36000 CR4: 00000000000006f0
Call Trace:
 <TASK>
 batadv_nc_worker+0x429/0x610
 process_scheduled_works+0xae1/0x17b0
 worker_thread+0x8a0/0xda0
 kthread+0x711/0x8a0
 ret_from_fork+0x3fc/0x770
 ret_from_fork_asm+0x1a/0x30
 </TASK>
