INFO: task kworker/0:8:26167 blocked for more than 143 seconds.
      Not tainted syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kworker/0:8     state:D
 stack:23432 pid:26167 tgid:26167 ppid:2      task_flags:0x4208060 flags:0x00080000
Workqueue: events rfkill_global_led_trigger_worker
Call Trace:
 <TASK>
 __schedule+0x1840/0x57a0
 schedule+0x164/0x360
 schedule_preempt_disabled+0x13/0x30
 __mutex_lock+0x7c5/0x1590
 rfkill_global_led_trigger_worker+0x27/0xd0
 process_scheduled_works+0xa8e/0x14e0
 worker_thread+0xa47/0xfb0
 kthread+0x388/0x470
 ret_from_fork+0x514/0xb70
 ret_from_fork_asm+0x1a/0x30
 </TASK>
INFO: task syz.3.9185:16411 blocked for more than 143 seconds.
      Not tainted syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.3.9185      state:D stack:24456 pid:16411 tgid:16405 ppid:15168  task_flags:0x400140 flags:0x00080002
Call Trace:
 <TASK>
 __schedule+0x1840/0x57a0
 schedule+0x164/0x360
 schedule_preempt_disabled+0x13/0x30
 __mutex_lock+0x7c5/0x1590
 rfkill_register+0x33/0x9b0
 wiphy_register+0x255f/0x2de0
 ieee80211_register_hw+0x3d58/0x4a40
 mac80211_hwsim_new_radio+0x2ff9/0x5390
 hwsim_new_radio_nl+0xf63/0x1c00
 genl_family_rcv_msg_doit+0x233/0x340
 genl_rcv_msg+0x614/0x7a0
 netlink_rcv_skb+0x226/0x4a0
 genl_rcv+0x28/0x40
 netlink_unicast+0x7bb/0x940
 netlink_sendmsg+0x813/0xb40
 ____sys_sendmsg+0x9b9/0xa20
 ___sys_sendmsg+0x2a5/0x360
 __x64_sys_sendmsg+0x1bd/0x2a0
 do_syscall_64+0x174/0x580
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f774439ce59
RSP: 002b:00007f774522c028 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
RAX: ffffffffffffffda RBX: 00007f7744616090 RCX: 00007f774439ce59
RDX: 0000000000000000 RSI: 0000200000000100 RDI: 0000000000000004
RBP: 00007f7744432e6f R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f7744616128 R14: 00007f7744616090 R15: 00007fff9127bc78
 </TASK>
INFO: task syz.0.9183:16417 blocked for more than 143 seconds.
      Not tainted syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.0.9183      state:D stack:27312 pid:16417 tgid:16409 ppid:5627   task_flags:0x400140 flags:0x00080002
Call Trace:
 <TASK>
 __schedule+0x1840/0x57a0
 schedule+0x164/0x360
 schedule_preempt_disabled+0x13/0x30
 __mutex_lock+0x7c5/0x1590
 genl_rcv_msg+0x10b/0x7a0
 netlink_rcv_skb+0x226/0x4a0
 genl_rcv+0x28/0x40
 netlink_unicast+0x7bb/0x940
 netlink_sendmsg+0x813/0xb40
 __sys_sendto+0x672/0x710
 __x64_sys_sendto+0xde/0x100
 do_syscall_64+0x174/0x580
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fe387b5d68e
RSP: 002b:00007fe388994e88 EFLAGS: 00000246 ORIG_RAX: 000000000000002c
RAX: ffffffffffffffda RBX: 00007fe3889966c0 RCX: 00007fe387b5d68e
RDX: 0000000000000024 RSI: 00007fe388995000 RDI: 000000000000000b
RBP: 0000000000000000 R08: 00007fe388994f04 R09: 000000000000000c
R10: 0000000000000000 R11: 0000000000000246 R12: 000000000000000b
R13: 00007fe388994f58 R14: 00007fe388995000 R15: 0000000000000000
 </TASK>
INFO: task syz.2.9186:16415 blocked for more than 143 seconds.
      Not tainted syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.2.9186      state:D stack:23480 pid:16415 tgid:16413 ppid:5615   task_flags:0x400140 flags:0x00080002
Call Trace:
 <TASK>
 __schedule+0x1840/0x57a0
 schedule+0x164/0x360
 schedule_preempt_disabled+0x13/0x30
 __mutex_lock+0x7c5/0x1590
 genl_rcv_msg+0x10b/0x7a0
 netlink_rcv_skb+0x226/0x4a0
 genl_rcv+0x28/0x40
 netlink_unicast+0x7bb/0x940
 netlink_sendmsg+0x813/0xb40
 __sys_sendto+0x672/0x710
 __x64_sys_sendto+0xde/0x100
 do_syscall_64+0x174/0x580
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7efd9275d68e
RSP: 002b:00007efd93673e88 EFLAGS: 00000246 ORIG_RAX: 000000000000002c
RAX: ffffffffffffffda RBX: 00007efd936756c0 RCX: 00007efd9275d68e
RDX: 0000000000000028 RSI: 00007efd93674000 RDI: 0000000000000006
RBP: 0000000000000000 R08: 00007efd93673f04 R09: 000000000000000c
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000006
R13: 00007efd93673f58 R14: 00007efd93674000 R15: 0000000000000000
 </TASK>
INFO: task syz.2.9186:16418 blocked for more than 144 seconds.
      Not tainted syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.2.9186      state:D stack:24744 pid:16418 tgid:16413 ppid:5615   task_flags:0x400040 flags:0x00080002
Call Trace:
 <TASK>
 __schedule+0x1840/0x57a0
 schedule+0x164/0x360
 schedule_preempt_disabled+0x13/0x30
 __mutex_lock+0x7c5/0x1590
 genl_rcv_msg+0x10b/0x7a0
 netlink_rcv_skb+0x226/0x4a0
 genl_rcv+0x28/0x40
 netlink_unicast+0x7bb/0x940
 netlink_sendmsg+0x813/0xb40
 ____sys_sendmsg+0x9b9/0xa20
 ___sys_sendmsg+0x2a5/0x360
 __x64_sys_sendmsg+0x1bd/0x2a0
 do_syscall_64+0x174/0x580
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7efd9279ce59
RSP: 002b:00007efd93633028 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
RAX: ffffffffffffffda RBX: 00007efd92a16180 RCX: 00007efd9279ce59
RDX: 0000000000000000 RSI: 0000200000000100 RDI: 000000000000000a
RBP: 00007efd92832e6f R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007efd92a16218 R14: 00007efd92a16180 R15: 00007ffc11b350a8
 </TASK>

Showing all locks held in the system:
1 lock held by khungtaskd/35:
 #0: ffffffff8e95c980 (rcu_read_lock){....}-{1:3}, at: debug_show_all_locks+0x2e/0x180
2 locks held by getty/5446:
 #0: ffff888109cde0a0 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x25/0x70
 #1: ffffc900034732e8 (&ldata->atomic_read_lock){+.+.}-{4:4}, at: n_tty_read+0x45a/0x1380
3 locks held by kworker/0:8/26167:
 #0: ffff88810006b140
 (
(wq_completion)events){+.+.}-{0:0}, at: process_scheduled_works+0xa20/0x14e0
 #1: ffffc900078e7c40 ((work_completion)(&rfkill_global_led_trigger_work)
){+.+.}-{0:0}
, at: process_scheduled_works+0xa20/0x14e0
 #2: 
ffffffff900d08e0
 (rfkill_global_mutex){+.+.}-{4:4}, at: rfkill_global_led_trigger_worker+0x27/0xd0
3 locks held by syz.3.9185/16411:
 #0: ffffffff8fe34348
 (cb_lock
){++++}-{4:4}
, at: genl_rcv+0x19/0x40
 #1: ffffffff8fe34180
 (genl_mutex){+.+.}-{4:4}, at: genl_rcv_msg+0x10b/0x7a0
 #2: ffffffff900d08e0 (rfkill_global_mutex
){+.+.}-{4:4}
, at: rfkill_register+0x33/0x9b0
6 locks held by syz.0.9183/16410:
2 locks held by syz.0.9183/16417:
 #0: ffffffff8fe34348 (cb_lock){++++}-{4:4}
, at: genl_rcv+0x19/0x40
 #1: ffffffff8fe34180 (genl_mutex){+.+.}-{4:4}, at: genl_rcv_msg+0x10b/0x7a0
2 locks held by syz.2.9186/16415:
 #0: ffffffff8fe34348 (cb_lock){++++}-{4:4}, at: genl_rcv+0x19/0x40
 #1: ffffffff8fe34180 (genl_mutex){+.+.}-{4:4}, at: genl_rcv_msg+0x10b/0x7a0
2 locks held by syz.2.9186/16418:
 #0: ffffffff8fe34348 (cb_lock){++++}-{4:4}, at: genl_rcv+0x19/0x40
 #1: ffffffff8fe34180 (genl_mutex){+.+.}-{4:4}, at: genl_rcv_msg+0x10b/0x7a0
2 locks held by syz-executor/16429:
 #0: ffff88820599e110 (&data->open_mutex){+.+.}-{4:4}, at: vhci_create_device+0x33/0x6f0
 #1: ffffffff900d08e0 (rfkill_global_mutex){+.+.}-{4:4}, at: rfkill_register+0x33/0x9b0
2 locks held by syz-executor/16430:
 #0: ffff88820599f110 (&data->open_mutex){+.+.}-{4:4}, at: vhci_create_device+0x33/0x6f0
 #1: ffffffff900d08e0 (rfkill_global_mutex){+.+.}-{4:4}, at: rfkill_register+0x33/0x9b0
2 locks held by syz-executor/16431:
 #0: ffff88820599e910 (&data->open_mutex){+.+.}-{4:4}, at: vhci_create_device+0x33/0x6f0
 #1: ffffffff900d08e0 (rfkill_global_mutex){+.+.}-{4:4}, at: rfkill_register+0x33/0x9b0
2 locks held by syz-executor/16442:
 #0: ffff8881e4747110 (&data->open_mutex){+.+.}-{4:4}
, at: vhci_create_device+0x33/0x6f0
 #1: ffffffff900d08e0 (rfkill_global_mutex){+.+.}-{4:4}, at: rfkill_register+0x33/0x9b0
2 locks held by syz-executor/16443:
 #0: 
ffff88803867b910
 (
&data->open_mutex
){+.+.}-{4:4}, at: vhci_create_device+0x33/0x6f0
 #1: ffffffff900d08e0 (rfkill_global_mutex){+.+.}-{4:4}, at: rfkill_register+0x33/0x9b0
2 locks held by syz-executor/16444:
 #0: 
ffff888038679910 (&data->open_mutex){+.+.}-{4:4}, at: vhci_create_device+0x33/0x6f0
 #1: ffffffff900d08e0 (rfkill_global_mutex){+.+.}-{4:4}, at: rfkill_register+0x33/0x9b0
2 locks held by syz-executor/16452:
 #0: ffff888071e28110 (&data->open_mutex){+.+.}-{4:4}, at: vhci_create_device+0x33/0x6f0
 #1: ffffffff900d08e0 (rfkill_global_mutex){+.+.}-{4:4}, at: rfkill_register+0x33/0x9b0
2 locks held by syz-executor/16454:
 #0: ffff88821e7af910 (&data->open_mutex){+.+.}-{4:4}, at: vhci_create_device+0x33/0x6f0
 #1: ffffffff900d08e0 (rfkill_global_mutex){+.+.}-{4:4}, at: rfkill_register+0x33/0x9b0
2 locks held by syz-executor/16456:
 #0: 
ffff8880504eb110
 (&data->open_mutex
){+.+.}-{4:4}
, at: vhci_create_device+0x33/0x6f0
 #1: ffffffff900d08e0 (rfkill_global_mutex){+.+.}-{4:4}
, at: rfkill_register+0x33/0x9b0

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

NMI backtrace for cpu 0
CPU: 0 UID: 0 PID: 35 Comm: khungtaskd Not tainted syzkaller #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+0xe8/0x150
 nmi_cpu_backtrace+0x274/0x2d0
 nmi_trigger_cpumask_backtrace+0x17a/0x300
 sys_info+0x135/0x170
 watchdog+0xfd7/0x1030
 kthread+0x388/0x470
 ret_from_fork+0x514/0xb70
 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: 16410 Comm: syz.0.9183 Not tainted syzkaller #0 PREEMPT(full) 
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
RIP: 0010:asm_sysvec_apic_timer_interrupt+0x0/0x20
Code: a6 f9 a2 0a e9 81 06 00 00 90 f3 0f 1e fa 0f 1f 00 fc 6a ff e8 31 05 00 00 48 89 c4 48 89 e7 e8 b6 f8 a2 0a e9 61 06 00 00 90 <f3> 0f 1e fa 0f 1f 00 fc 6a ff e8 11 05 00 00 48 89 c4 48 89 e7 e8
RSP: 0018:ffffc900027eebb8 EFLAGS: 00000046
RAX: ffffffff81a43b05 RBX: ffffffff81a4397f RCX: 0000000000080000
RDX: ffffc9000911c000 RSI: 000000000007ffff RDI: ffffffff8e94ef00
RBP: ffffc900027eec90 R08: ffffffff902fd6f7 R09: 1ffffffff205fade
R10: dffffc0000000000 R11: fffffbfff205fadf R12: 0000000000000000
R13: 000000000000000c R14: 0000000000000200 R15: 1ffff920004fdd80
FS:  00007fe3889d86c0(0000) GS:ffff8882a92af000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fe387b9ce2f CR3: 0000000219efa000 CR4: 00000000000006f0
Call Trace:
 <TASK>
RIP: 0010:vprintk_emit+0x45d/0x560
Code: 0f 84 44 ff ff ff e8 22 19 21 00 fb eb 44 e8 1a 19 21 00 e8 15 da fe 09 4d 85 f6 74 94 e8 0b 19 21 00 fb 48 c7 c7 00 ef 94 8e <31> f6 ba 01 00 00 00 31 c9 41 b8 01 00 00 00 45 31 c9 53 e8 cb 1c
RSP: 0018:ffffc900027eebe0 EFLAGS: 00000246
 _printk+0xdd/0x130
 seq_buf_do_printk+0x199/0x270
 mem_cgroup_print_oom_meminfo+0x2c3/0x4c0
 dump_header+0x10c/0x4b0
 out_of_memory+0x10d4/0x1480
 try_charge_memcg+0xc74/0x1590
 __memcg_slab_post_alloc_hook+0x82a/0xe60
 kmem_cache_alloc_lru_noprof+0x342/0x640
 __d_alloc+0x37/0x6f0
 d_alloc+0x4b/0x190
 lookup_one_qstr_excl+0xd8/0x360
 start_dirop+0x5c/0x90
 simple_start_creating+0xcc/0x110
 debugfs_start_creating+0xdb/0x1a0
 debugfs_create_dir+0x24/0x350
 ieee80211_debugfs_recreate_netdev+0x1cc/0x14c0
 drv_remove_interface+0x1ed/0x570
 ieee80211_do_stop+0x16ff/0x2220
 ieee80211_stop+0x1af/0x220
 __dev_close_many+0x366/0x6e0
 netif_close_many+0x222/0x410
 netif_close+0x160/0x220
 dev_close+0xf7/0x210
 cfg80211_shutdown_all_interfaces+0xb0/0x200
 cfg80211_rfkill_set_block+0x2d/0x50
 rfkill_set_block+0x19f/0x4d0
 rfkill_fop_write+0x43b/0x560
 vfs_write+0x296/0xba0
 ksys_write+0x150/0x270
 do_syscall_64+0x174/0x580
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fe387b9ce59
Code: Unable to access opcode bytes at 0x7fe387b9ce2f.
RSP: 002b:00007fe3889d8028 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 00007fe387e15fa0 RCX: 00007fe387b9ce59
RDX: 0000000000000008 RSI: 0000200000000080 RDI: 0000000000000009
RBP: 00007fe387c32e6f R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fe387e16038 R14: 00007fe387e15fa0 R15: 00007ffd7f64b7e8
 </TASK>
