hid-generic 0000:0000:0000.0FAE: unknown main item tag 0x0
hid-generic 0000:0000:0000.0FAE: unknown main item tag 0x0
hid-generic 0000:0000:0000.0FAE: unknown main item tag 0x0
hid-generic 0000:0000:0000.0FAD: hidraw51: <UNKNOWN> HID v0.00 Device [syz0] on syz0
hid-generic 0000:0000:0000.0FAE: hidraw52: <UNKNOWN> HID v0.00 Device [syz0] on syz0
INFO: task init:20080 blocked for more than 140 seconds.
      Not tainted 4.9.202+ #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
init            D28440 20080      1 0x00000000
 0000000000000087 ffff88019d385f00 ffff8801cf9b3700 ffff8801db61ffc0
 ffff8801d0d54740 ffff8801db61ffd8 ffff8801a9697758 ffffffff8280a1de
 ffff88010000000d 1ffff100352d2ed4 00ffe8ffffc148a0 ffff8801db6208b0
Call Trace:
 [<00000000fd4ef494>] schedule+0x92/0x1c0 kernel/sched/core.c:3546
 [<000000008828628c>] schedule_preempt_disabled+0x13/0x20 kernel/sched/core.c:3579
 [<0000000049e8c8d6>] __mutex_lock_common kernel/locking/mutex.c:582 [inline]
 [<0000000049e8c8d6>] mutex_lock_nested+0x38d/0x920 kernel/locking/mutex.c:621
 [<00000000f771b4b9>] tty_open_by_driver drivers/tty/tty_io.c:2062 [inline]
 [<00000000f771b4b9>] tty_open+0x3f9/0xe10 drivers/tty/tty_io.c:2140
 [<00000000028843eb>] chrdev_open+0x230/0x630 fs/char_dev.c:398
 [<0000000006ca72eb>] do_dentry_open+0x422/0xd20 fs/open.c:791
 [<00000000fb92973a>] vfs_open+0x105/0x230 fs/open.c:904
 [<00000000d6f3d45c>] do_last fs/namei.c:3457 [inline]
 [<00000000d6f3d45c>] path_openat+0xbf5/0x2f60 fs/namei.c:3581
 [<0000000069447d22>] do_filp_open+0x1a1/0x280 fs/namei.c:3615
 [<0000000072eaa2a4>] do_sys_open+0x2f0/0x610 fs/open.c:1097
 [<0000000096c65d33>] SYSC_open fs/open.c:1115 [inline]
 [<0000000096c65d33>] SyS_open+0x2d/0x40 fs/open.c:1110
 [<000000008518f3c0>] do_syscall_64+0x1ad/0x5c0 arch/x86/entry/common.c:288
 [<000000007076d64f>] entry_SYSCALL_64_after_swapgs+0x5d/0xdb

Showing all locks held in the system:
2 locks held by kworker/0:1/23:
 #0:  ("events"){.+.+.+}, at: [<000000008d2232ce>] process_one_work+0x790/0x1600 kernel/workqueue.c:2107
 #1:  (key_gc_work){+.+.+.}, at: [<00000000c05ca661>] process_one_work+0x7ce/0x1600 kernel/workqueue.c:2111
2 locks held by khungtaskd/24:
 #0:  (rcu_read_lock){......}, at: [<000000008716b171>] check_hung_uninterruptible_tasks kernel/hung_task.c:169 [inline]
 #0:  (rcu_read_lock){......}, at: [<000000008716b171>] watchdog+0x14b/0xaf0 kernel/hung_task.c:263
 #1:  (tasklist_lock){.+.+..}, at: [<0000000082cbf8ae>] debug_show_all_locks+0x7f/0x21f kernel/locking/lockdep.c:4339
1 lock held by rsyslogd/1896:
 #0:  (&f->f_pos_lock){+.+.+.}, at: [<00000000f4553978>] __fdget_pos+0xa8/0xd0 fs/file.c:782
2 locks held by getty/2024:
 #0:  (&tty->ldisc_sem){++++++}, at: [<00000000e52dbd41>] ldsem_down_read+0x33/0x40 drivers/tty/tty_ldsem.c:376
 #1:  (&ldata->atomic_read_lock){+.+.+.}, at: [<000000008494f70e>] n_tty_read+0x1fe/0x1820 drivers/tty/n_tty.c:2156
2 locks held by syz-executor.1/4526:
 #0:  (tasklist_lock){.+.+..}, at: [<0000000044e1419f>] do_wait+0x371/0x930 kernel/exit.c:1567
 #1:  (rcu_read_lock){......}, at: [<0000000035b77cf6>] task_has_perm+0x0/0x330 security/selinux/hooks.c:5848
1 lock held by init/20080:
 #0:  (tty_mutex){+.+.+.}, at: [<00000000f771b4b9>] tty_open_by_driver drivers/tty/tty_io.c:2062 [inline]
 #0:  (tty_mutex){+.+.+.}, at: [<00000000f771b4b9>] tty_open+0x3f9/0xe10 drivers/tty/tty_io.c:2140
1 lock held by init/20082:
 #0:  (tty_mutex){+.+.+.}, at: [<00000000f771b4b9>] tty_open_by_driver drivers/tty/tty_io.c:2062 [inline]
 #0:  (tty_mutex){+.+.+.}, at: [<00000000f771b4b9>] tty_open+0x3f9/0xe10 drivers/tty/tty_io.c:2140
1 lock held by init/20084:
 #0:  (tty_mutex){+.+.+.}, at: [<00000000f771b4b9>] tty_open_by_driver drivers/tty/tty_io.c:2062 [inline]
 #0:  (tty_mutex){+.+.+.}, at: [<00000000f771b4b9>] tty_open+0x3f9/0xe10 drivers/tty/tty_io.c:2140
1 lock held by init/20090:
 #0:  (tty_mutex){+.+.+.}, at: [<00000000f771b4b9>] tty_open_by_driver drivers/tty/tty_io.c:2062 [inline]
 #0:  (tty_mutex){+.+.+.}, at: [<00000000f771b4b9>] tty_open+0x3f9/0xe10 drivers/tty/tty_io.c:2140
1 lock held by init/27978:
 #0:  (tty_mutex){+.+.+.}, at: [<00000000f771b4b9>] tty_open_by_driver drivers/tty/tty_io.c:2062 [inline]
 #0:  (tty_mutex){+.+.+.}, at: [<00000000f771b4b9>] tty_open+0x3f9/0xe10 drivers/tty/tty_io.c:2140

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

NMI backtrace for cpu 1
CPU: 1 PID: 24 Comm: khungtaskd Not tainted 4.9.202+ #0
 ffff8801d98d7cc8 ffffffff81b55d2b 0000000000000001 0000000000000000
 0000000000000001 ffffffff8109a001 dffffc0000000000 ffff8801d98d7d00
 ffffffff81b60fcc 0000000000000001 0000000000000000 0000000000000001
Call Trace:
 [<00000000125bf4ff>] __dump_stack lib/dump_stack.c:15 [inline]
 [<00000000125bf4ff>] dump_stack+0xcb/0x130 lib/dump_stack.c:56
 [<000000009557ede2>] nmi_cpu_backtrace.cold+0x47/0x87 lib/nmi_backtrace.c:99
 [<000000002208bf64>] nmi_trigger_cpumask_backtrace+0x124/0x155 lib/nmi_backtrace.c:60
 [<0000000007ca46d5>] arch_trigger_cpumask_backtrace+0x14/0x20 arch/x86/kernel/apic/hw_nmi.c:37
 [<000000007acc26f7>] trigger_all_cpu_backtrace include/linux/nmi.h:58 [inline]
 [<000000007acc26f7>] check_hung_task kernel/hung_task.c:126 [inline]
 [<000000007acc26f7>] check_hung_uninterruptible_tasks kernel/hung_task.c:183 [inline]
 [<000000007acc26f7>] watchdog+0x670/0xaf0 kernel/hung_task.c:263
 [<00000000a1a4f965>] kthread+0x278/0x310 kernel/kthread.c:211
 [<00000000602c6d90>] ret_from_fork+0x5c/0x70 arch/x86/entry/entry_64.S:375
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 PID: 11462 Comm: syz-executor.0 Not tainted 4.9.202+ #0
task: 000000009dabac5f task.stack: 0000000027cf9711
RIP: 0010:[<ffffffff812129c0>] 
c [<00000000c655bcb8>] __lock_release kernel/locking/lockdep.c:3586 [inline]
RIP: 0010:[<ffffffff812129c0>] 
c [<00000000c655bcb8>] lock_release+0x490/0xc30 kernel/locking/lockdep.c:3778
RSP: 0018:ffff8801a5467ac0  EFLAGS: 00000046
RAX: 0000000000000000 RBX: 9620cf3c89f7b72e RCX: 0000000000000001
RDX: 1ffff10033bbdcf5 RSI: 0000000000000000 RDI: ffff88019ddee7a0
RBP: ffff8801a5467b68 R08: 0000000000000000 R09: 0000000000000001
R10: 0000000000000000 R11: 0000000000000001 R12: dffffc0000000000
R13: ffff88019ddee7b0 R14: 0000000000000001 R15: ffff88019ddee7fa
FS:  000000000195b940(0000) GS:ffff8801db600000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000001bd4ff8 CR3: 00000001a2179000 CR4: 00000000001606b0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Stack:
 b5f825a1409d2dd8
c 0000000000000246
c ffff88019ddedf00
c 0000000000000000
c
 ffff8801a5467b20
c ffffffff81bbc38c
c ffffffff81bbc38c
c ffff8801a5467b38
c
 ffffffff81bbc38c
c ffff88019ddee7a8
c ffff88019ddee7b0
c 0000000000000246
c
Call Trace:
 [<00000000cfe217df>] rcu_lock_release include/linux/rcupdate.h:496 [inline]
 [<00000000cfe217df>] rcu_read_unlock include/linux/rcupdate.h:929 [inline]
 [<00000000cfe217df>] task_has_perm+0x1ea/0x330 security/selinux/hooks.c:1636
 [<0000000067261f37>] selinux_task_wait+0x24/0x30 security/selinux/hooks.c:3980
 [<0000000014da4ca9>] security_task_wait+0x73/0xb0 security/security.c:1039
 [<00000000bd0bded7>] wait_consider_task+0x294/0x35e0 kernel/exit.c:1386
 [<000000007671bead>] do_wait_thread kernel/exit.c:1499 [inline]
 [<000000007671bead>] do_wait+0x3fc/0x930 kernel/exit.c:1570
 [<00000000e9b4294a>] SYSC_wait4 kernel/exit.c:1702 [inline]
 [<00000000e9b4294a>] SyS_wait4+0x144/0x210 kernel/exit.c:1667
 [<000000008518f3c0>] do_syscall_64+0x1ad/0x5c0 arch/x86/entry/common.c:288
 [<000000007076d64f>] entry_SYSCALL_64_after_swapgs+0x5d/0xdb
Code: 
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c<48> 
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c00 
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c