INFO: task kworker/0:0:9 blocked for more than 143 seconds.
      Tainted: G             L      syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kworker/0:0     state:D stack:21792 pid:9     tgid:9     ppid:2      task_flags:0x4208060 flags:0x00080000
Workqueue: events rfkill_global_led_trigger_worker
Call Trace:
 <TASK>
 __schedule+0x14ef/0x4fb0
 schedule+0x164/0x360
 schedule_preempt_disabled+0x13/0x30
 __mutex_lock+0x829/0x1340
 rfkill_global_led_trigger_worker+0x27/0xd0
 process_scheduled_works+0xaec/0x17a0
 worker_thread+0x89f/0xd90
 kthread+0x726/0x8b0
 ret_from_fork+0x51b/0xa40
 ret_from_fork_asm+0x1a/0x30
 </TASK>
INFO: task syz.8.7169:1960 blocked for more than 143 seconds.
      Tainted: G             L      syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.8.7169      state:D stack:25688 pid:1960  tgid:1960  ppid:1750   task_flags:0x400040 flags:0x00080002
Call Trace:
 <TASK>
 __schedule+0x14ef/0x4fb0
 schedule+0x164/0x360
 schedule_preempt_disabled+0x13/0x30
 __mutex_lock+0x829/0x1340
 rfkill_unregister+0xc8/0x220
 nfc_unregister_device+0x96/0x2f0
 virtual_ncidev_close+0x56/0x90
 __fput+0x44f/0xa70
 task_work_run+0x1d9/0x270
 exit_to_user_mode_loop+0xed/0x480
 do_syscall_64+0x2ad/0xf80
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fc91679acb9
RSP: 002b:00007ffeeaf63c48 EFLAGS: 00000246 ORIG_RAX: 00000000000001b4
RAX: 0000000000000000 RBX: 00007fc916a17da0 RCX: 00007fc91679acb9
RDX: 0000000000000000 RSI: 000000000000001e RDI: 0000000000000003
RBP: 00007fc916a17da0 R08: 0000000000000006 R09: 0000000000000000
R10: 00007fc916a17cb0 R11: 0000000000000246 R12: 0000000000142172
R13: 00007fc916a1609c R14: 0000000000141ed3 R15: 00007fc916a16090
 </TASK>
INFO: task syz.0.7173:2002 blocked for more than 143 seconds.
      Tainted: G             L      syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.0.7173      state:D stack:25256 pid:2002  tgid:2001  ppid:29997  task_flags:0x400140 flags:0x00080002
Call Trace:
 <TASK>
 __schedule+0x14ef/0x4fb0
 schedule+0x164/0x360
 schedule_preempt_disabled+0x13/0x30
 __mutex_lock+0x829/0x1340
 nfc_dev_down+0x3b/0x290
 nfc_rfkill_set_block+0x2d/0x100
 rfkill_set_block+0x1d2/0x440
 rfkill_fop_write+0x461/0x5a0
 vfs_write+0x29a/0xb90
 ksys_write+0x150/0x270
 do_syscall_64+0xe2/0xf80
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f689d79acb9
RSP: 002b:00007f689e585028 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 00007f689da15fa0 RCX: 00007f689d79acb9
RDX: 0000000000000008 RSI: 0000200000000080 RDI: 0000000000000006
RBP: 00007f689d808bf7 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f689da16038 R14: 00007f689da15fa0 R15: 00007ffce3633bd8
 </TASK>
INFO: task syz-executor:2237 blocked for more than 143 seconds.
      Tainted: G             L      syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor    state:D stack:28056 pid:2237  tgid:2237  ppid:1      task_flags:0x400040 flags:0x00080000
Call Trace:
 <TASK>
 __schedule+0x14ef/0x4fb0
 schedule+0x164/0x360
 schedule_preempt_disabled+0x13/0x30
 __mutex_lock+0x829/0x1340
 rfkill_register+0x37/0x8e0
 hci_register_dev+0x3f2/0x8b0
 vhci_create_device+0x39c/0x650
 vhci_write+0x3ce/0x4a0
 vfs_write+0x61d/0xb90
 ksys_write+0x150/0x270
 do_syscall_64+0xe2/0xf80
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f8649755ed7
RSP: 002b:00007ffef334d6f0 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 0000555580c51500 RCX: 00007f8649755ed7
RDX: 0000000000000002 RSI: 00007ffef334d74a RDI: 00000000000000ca
RBP: 00007f8649a167b8 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000202 R12: 0000000000000008
R13: 0000000000000003 R14: 00007ffef334da08 R15: 0000000000000000
 </TASK>
INFO: task syz-executor:2284 blocked for more than 143 seconds.
      Tainted: G             L      syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor    state:D stack:28056 pid:2284  tgid:2284  ppid:1      task_flags:0x400040 flags:0x00080000
Call Trace:
 <TASK>
 __schedule+0x14ef/0x4fb0
 schedule+0x164/0x360
 schedule_preempt_disabled+0x13/0x30
 __mutex_lock+0x829/0x1340
 rfkill_register+0x37/0x8e0
 hci_register_dev+0x3f2/0x8b0
 vhci_create_device+0x39c/0x650
 vhci_write+0x3ce/0x4a0
 vfs_write+0x61d/0xb90
 ksys_write+0x150/0x270
 do_syscall_64+0xe2/0xf80
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fd261d55ed7
RSP: 002b:00007ffdbba4c4a0 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 000055556746d500 RCX: 00007fd261d55ed7
RDX: 0000000000000002 RSI: 00007ffdbba4c4fa RDI: 00000000000000ca
RBP: 00007fd2620167b8 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000202 R12: 0000000000000008
R13: 0000000000000003 R14: 00007ffdbba4c7b8 R15: 0000000000000000
 </TASK>

Showing all locks held in the system:
3 locks held by kworker/0:0/9:
 #0: ffff888100075948 ((wq_completion)events){+.+.}-{0:0}, at: process_scheduled_works+0x9d4/0x17a0
 #1: ffffc900000e7bc0 ((work_completion)(&rfkill_global_led_trigger_work)){+.+.}-{0:0}, at: process_scheduled_works+0xa0f/0x17a0
 #2: ffffffff8fa01848 (rfkill_global_mutex){+.+.}-{4:4}, at: rfkill_global_led_trigger_worker+0x27/0xd0
1 lock held by khungtaskd/35:
 #0: ffffffff8e341ae0 (rcu_read_lock){....}-{1:3}, at: debug_show_all_locks+0x2e/0x180
2 locks held by getty/11222:
 #0: ffff888115ced0a0 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x25/0x70
 #1: ffffc900024bd2f0 (&ldata->atomic_read_lock){+.+.}-{4:4}, at: n_tty_read+0x45c/0x13c0
4 locks held by kworker/u8:5/15493:
 #0: ffff888100ef7948 ((wq_completion)netns){+.+.}-{0:0}, at: process_scheduled_works+0x9d4/0x17a0
 #1: ffffc90005fa7bc0 (net_cleanup_work){+.+.}-{0:0}, at: process_scheduled_works+0xa0f/0x17a0
 #2: ffffffff8f708c50 (pernet_ops_rwsem){++++}-{4:4}, at: cleanup_net+0xfe/0x7b0
 #3: ffffffff8fa01848 (rfkill_global_mutex){+.+.}-{4:4}, at: rfkill_unregister+0xc8/0x220
2 locks held by syz-executor/31937:
2 locks held by syz.8.7169/1960:
 #0: ffff8881b4279100 (&dev->mutex){....}-{4:4}, at: nfc_unregister_device+0x63/0x2f0
 #1: ffffffff8fa01848 (rfkill_global_mutex){+.+.}-{4:4}, at: rfkill_unregister+0xc8/0x220
2 locks held by syz.0.7173/2002:
 #0: ffffffff8fa01848 (rfkill_global_mutex){+.+.}-{4:4}, at: rfkill_fop_write+0x19a/0x5a0
 #1: ffff8881b4279100 (&dev->mutex){....}-{4:4}, at: nfc_dev_down+0x3b/0x290
2 locks held by syz-executor/2237:
 #0: ffff8881a040f118 (&data->open_mutex){+.+.}-{4:4}, at: vhci_create_device+0x34/0x650
 #1: ffffffff8fa01848 (rfkill_global_mutex){+.+.}-{4:4}, at: rfkill_register+0x37/0x8e0
2 locks held by syz-executor/2284:
 #0: ffff88816b968918 (&data->open_mutex){+.+.}-{4:4}, at: vhci_create_device+0x34/0x650
 #1: ffffffff8fa01848 (rfkill_global_mutex){+.+.}-{4:4}, at: rfkill_register+0x37/0x8e0
3 locks held by syz.6.7245/2492:
 #0: ffffffff8f77da30 (cb_lock){++++}-{4:4}, at: genl_rcv+0x19/0x40
 #1: ffffffff8f77d848 (genl_mutex){+.+.}-{4:4}, at: genl_rcv_msg+0x10b/0x7a0
 #2: ffffffff8fa01848 (rfkill_global_mutex){+.+.}-{4:4}, at: rfkill_register+0x37/0x8e0
2 locks held by syz-executor/2494:
 #0: ffff888171156918 (&data->open_mutex){+.+.}-{4:4}, at: vhci_create_device+0x34/0x650
 #1: ffffffff8fa01848 (rfkill_global_mutex){+.+.}-{4:4}, at: rfkill_register+0x37/0x8e0
2 locks held by syz-executor/2503:
 #0: ffff88810d986118 (&data->open_mutex){+.+.}-{4:4}, at: vhci_create_device+0x34/0x650
 #1: ffffffff8fa01848 (rfkill_global_mutex){+.+.}-{4:4}, at: rfkill_register+0x37/0x8e0
2 locks held by syz-executor/2506:
 #0: ffff888190b86118 (&data->open_mutex){+.+.}-{4:4}, at: vhci_create_device+0x34/0x650
 #1: ffffffff8fa01848 (rfkill_global_mutex){+.+.}-{4:4}, at: rfkill_register+0x37/0x8e0
2 locks held by syz-executor/2508:
 #0: ffff88801ffb4918 (&data->open_mutex){+.+.}-{4:4}, at: vhci_create_device+0x34/0x650
 #1: ffffffff8fa01848 (rfkill_global_mutex){+.+.}-{4:4}, at: rfkill_register+0x37/0x8e0
2 locks held by syz-executor/2513:
 #0: ffff88801e859118 (&data->open_mutex){+.+.}-{4:4}, at: vhci_create_device+0x34/0x650
 #1: ffffffff8fa01848 (rfkill_global_mutex){+.+.}-{4:4}, at: rfkill_register+0x37/0x8e0
2 locks held by syz-executor/2519:
 #0: ffff88817318c118 (&data->open_mutex){+.+.}-{4:4}, at: vhci_create_device+0x34/0x650
 #1: ffffffff8fa01848 (rfkill_global_mutex){+.+.}-{4:4}, at: rfkill_register+0x37/0x8e0

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

NMI backtrace for cpu 0
CPU: 0 UID: 0 PID: 35 Comm: khungtaskd Tainted: G             L      syzkaller #0 PREEMPT(full) 
Tainted: [L]=SOFTLOCKUP
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+0xe8/0x150
 nmi_cpu_backtrace+0x274/0x2d0
 nmi_trigger_cpumask_backtrace+0x17a/0x300
 sys_info+0x135/0x170
 watchdog+0xf90/0xfe0
 kthread+0x726/0x8b0
 ret_from_fork+0x51b/0xa40
 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: 31937 Comm: syz-executor Tainted: G             L      syzkaller #0 PREEMPT(full) 
Tainted: [L]=SOFTLOCKUP
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
RIP: 0010:mark_lock+0xf/0x190
Code: e9 b6 fd ff ff 66 0f 1f 44 00 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 55 41 57 41 56 41 55 41 54 53 8b 46 20 89 c1 <81> e1 00 00 03 00 83 f9 01 bb 09 00 00 00 83 db 00 83 fa 08 0f 45
RSP: 0018:ffffc90000a172a0 EFLAGS: 00000002
RAX: 0000000000050c03 RBX: ffff8881b1119d40 RCX: 0000000000050c03
RDX: 0000000000000008 RSI: ffff8881b111a8c0 RDI: ffff8881b1119d40
RBP: 0000000000000000 R08: ffffffff84223ef9 R09: ffff888116f4f130
R10: ffffc90000a175d4 R11: fffff52000142ebc R12: 0000000000000004
R13: ffff8881b111a8c0 R14: ffff8881b1119d40 R15: 0000000000000002
FS:  0000555588b31500(0000) GS:ffff8882a9a09000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000561fdef78de8 CR3: 00000001169fc000 CR4: 00000000000006f0
Call Trace:
 <TASK>
 __lock_acquire+0x6b5/0x2cf0
 lock_acquire+0x106/0x330
 down_read+0x47/0x2e0
 f2fs_get_node_info+0x119/0x1480
 read_node_folio+0x221/0x410
 __get_node_folio+0x23b/0x1540
 f2fs_update_inode_page+0x82/0x190
 f2fs_write_checkpoint+0xbd5/0x2490
 kill_f2fs_super+0x308/0x710
 deactivate_locked_super+0xbc/0x130
 cleanup_mnt+0x437/0x4d0
 task_work_run+0x1d9/0x270
 exit_to_user_mode_loop+0xed/0x480
 do_syscall_64+0x2ad/0xf80
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f584379bf17
Code: a2 c7 05 7c 96 24 00 00 00 00 00 eb 96 e8 e1 12 00 00 90 31 f6 e9 09 00 00 00 66 0f 1f 84 00 00 00 00 00 b8 a6 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 01 c3 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8
RSP: 002b:00007ffdfdad35c8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
RAX: 0000000000000000 RBX: 00007f584380471f RCX: 00007f584379bf17
RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffdfdad3680
RBP: 00007ffdfdad3680 R08: 00007ffdfdad4680 R09: 00000000ffffffff
R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffdfdad4710
R13: 00007f584380471f R14: 000000000013d01a R15: 00007ffdfdad4750
 </TASK>
