hid-generic 0000:0000:0000.02FB: unknown main item tag 0x0
hid-generic 0000:0000:0000.02FB: unknown main item tag 0x0
hid-generic 0000:0000:0000.02FB: unknown main item tag 0x0
hid-generic 0000:0000:0000.02FB: unknown main item tag 0x0
hid-generic 0000:0000:0000.02FB: hidraw0: <UNKNOWN> HID v0.00 Device [syz0] on syz0
INFO: task init:25707 blocked for more than 140 seconds.
      Not tainted 4.9.191+ #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
init            D28056 25707      1 0x00000000
 0000000000000087 ffff8801a203df00 ffff88019fa0ee00 ffff8801db621000
 ffff8801a0275f00 ffff8801db621018 ffff8801d3e57758 ffffffff8281ac0e
 ffff8801a203e7c8 ffff8801a203e7a0 00ff8801a203e7d0 ffff8801db6218f0
Call Trace:
 [<00000000325052ed>] schedule+0x92/0x1c0 kernel/sched/core.c:3546
 [<00000000a435d5b2>] schedule_preempt_disabled+0x13/0x20 kernel/sched/core.c:3579
 [<000000008eeaecab>] __mutex_lock_common kernel/locking/mutex.c:582 [inline]
 [<000000008eeaecab>] mutex_lock_nested+0x38d/0x920 kernel/locking/mutex.c:621
 [<00000000a2cbe799>] tty_open_by_driver drivers/tty/tty_io.c:2062 [inline]
 [<00000000a2cbe799>] tty_open+0x3f9/0xe10 drivers/tty/tty_io.c:2140
 [<000000005a1ac4bf>] chrdev_open+0x230/0x630 fs/char_dev.c:398
 [<000000001fdd0416>] do_dentry_open+0x422/0xd20 fs/open.c:791
 [<000000007fdee762>] vfs_open+0x105/0x230 fs/open.c:904
 [<000000006d651794>] do_last fs/namei.c:3541 [inline]
 [<000000006d651794>] path_openat+0xbf5/0x2f60 fs/namei.c:3665
 [<00000000765385b3>] do_filp_open+0x1a1/0x280 fs/namei.c:3699
 [<00000000f74bba44>] do_sys_open+0x2f0/0x610 fs/open.c:1097
 [<00000000543c2169>] SYSC_open fs/open.c:1115 [inline]
 [<00000000543c2169>] SyS_open+0x2d/0x40 fs/open.c:1110
 [<0000000006a639d3>] do_syscall_64+0x1ad/0x5c0 arch/x86/entry/common.c:288
 [<0000000081e68432>] entry_SYSCALL_64_after_swapgs+0x5d/0xdb

Showing all locks held in the system:
2 locks held by khungtaskd/24:
 #0:  (rcu_read_lock){......}, at: [<000000004b60e4ab>] check_hung_uninterruptible_tasks kernel/hung_task.c:169 [inline]
 #0:  (rcu_read_lock){......}, at: [<000000004b60e4ab>] watchdog+0x14b/0xaf0 kernel/hung_task.c:263
 #1:  (tasklist_lock){.+.+..}, at: [<00000000075e6ce6>] debug_show_all_locks+0x7f/0x21f kernel/locking/lockdep.c:4336
1 lock held by rsyslogd/1897:
 #0:  (&f->f_pos_lock){+.+.+.}, at: [<000000005e192d86>] __fdget_pos+0xa8/0xd0 fs/file.c:782
2 locks held by getty/2024:
 #0:  (&tty->ldisc_sem){++++++}, at: [<00000000242dda24>] ldsem_down_read+0x33/0x40 drivers/tty/tty_ldsem.c:376
 #1:  (&ldata->atomic_read_lock){+.+.+.}, at: [<00000000efcb0f84>] n_tty_read+0x1fe/0x1820 drivers/tty/n_tty.c:2156
1 lock held by init/25707:
 #0:  (tty_mutex){+.+.+.}, at: [<00000000a2cbe799>] tty_open_by_driver drivers/tty/tty_io.c:2062 [inline]
 #0:  (tty_mutex){+.+.+.}, at: [<00000000a2cbe799>] tty_open+0x3f9/0xe10 drivers/tty/tty_io.c:2140
1 lock held by init/25708:
 #0:  (tty_mutex){+.+.+.}, at: [<00000000a2cbe799>] tty_open_by_driver drivers/tty/tty_io.c:2062 [inline]
 #0:  (tty_mutex){+.+.+.}, at: [<00000000a2cbe799>] tty_open+0x3f9/0xe10 drivers/tty/tty_io.c:2140
1 lock held by init/25709:
 #0:  (tty_mutex){+.+.+.}, at: [<00000000a2cbe799>] tty_open_by_driver drivers/tty/tty_io.c:2062 [inline]
 #0:  (tty_mutex){+.+.+.}, at: [<00000000a2cbe799>] tty_open+0x3f9/0xe10 drivers/tty/tty_io.c:2140
1 lock held by init/25710:
 #0:  (tty_mutex){+.+.+.}, at: [<00000000a2cbe799>] tty_open_by_driver drivers/tty/tty_io.c:2062 [inline]
 #0:  (tty_mutex){+.+.+.}, at: [<00000000a2cbe799>] tty_open+0x3f9/0xe10 drivers/tty/tty_io.c:2140
1 lock held by init/25712:
 #0:  (tty_mutex){+.+.+.}, at: [<00000000a2cbe799>] tty_open_by_driver drivers/tty/tty_io.c:2062 [inline]
 #0:  (tty_mutex){+.+.+.}, at: [<00000000a2cbe799>] tty_open+0x3f9/0xe10 drivers/tty/tty_io.c:2140

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

NMI backtrace for cpu 0
CPU: 0 PID: 24 Comm: khungtaskd Not tainted 4.9.191+ #0
 ffff8801d98d7cc8 ffffffff81b67171 0000000000000000 0000000000000000
 0000000000000000 ffffffff81099f01 dffffc0000000000 ffff8801d98d7d00
 ffffffff81b7240c 0000000000000000 0000000000000000 0000000000000000
Call Trace:
 [<00000000330931dd>] __dump_stack lib/dump_stack.c:15 [inline]
 [<00000000330931dd>] dump_stack+0xc1/0x120 lib/dump_stack.c:51
 [<000000001835bcc6>] nmi_cpu_backtrace.cold+0x47/0x87 lib/nmi_backtrace.c:99
 [<00000000e93b6fb3>] nmi_trigger_cpumask_backtrace+0x124/0x155 lib/nmi_backtrace.c:60
 [<000000007bcdaa76>] arch_trigger_cpumask_backtrace+0x14/0x20 arch/x86/kernel/apic/hw_nmi.c:37
 [<000000004abca251>] trigger_all_cpu_backtrace include/linux/nmi.h:58 [inline]
 [<000000004abca251>] check_hung_task kernel/hung_task.c:126 [inline]
 [<000000004abca251>] check_hung_uninterruptible_tasks kernel/hung_task.c:183 [inline]
 [<000000004abca251>] watchdog+0x670/0xaf0 kernel/hung_task.c:263
 [<00000000b2eb8607>] kthread+0x278/0x310 kernel/kthread.c:211
 [<0000000038657cba>] ret_from_fork+0x5c/0x70 arch/x86/entry/entry_64.S:375
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 PID: 25711 Comm: init Not tainted 4.9.191+ #0
task: 0000000029cb062a task.stack: 0000000041be52ba
RIP: 0010:[<ffffffff81d86ee3>] 
c [<00000000e52ef688>] io_serial_out+0x73/0x90 drivers/tty/serial/8250/8250_port.c:420
RSP: 0018:ffff8801ce7275b8  EFLAGS: 00000002
RAX: 0000000000000033 RBX: 00000000000003f8 RCX: 0000000000000000
RDX: 00000000000003f8 RSI: ffffffff81d86e86 RDI: ffffffff84b68e58
RBP: ffff8801ce7275d0 R08: 0000000000000001 R09: 0000000000003921
R10: ffff8801a0275040 R11: 0000000000000001 R12: ffffffff84b68e20
R13: 0000000000000033 R14: dffffc0000000000 R15: 0000000000000033
FS:  00007f332780e7a0(0000) GS:ffff8801db700000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f79603d7000 CR3: 00000001d4a70000 CR4: 00000000001606b0
DR0: 0000000020000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000600
Stack:
 ffffffff841d75cb
c ffffffff84b68e20
c 0000000000000033
c ffff8801ce7275f0
c
 ffffffff81d8922e
c ffffffff81d891e0
c ffffffff84b68e20
c ffff8801ce727630
c
 ffffffff81d714f6
c ffffffff841d760a
c 0000000000000000
c ffffffff84b68e20
c
Call Trace:
 [<00000000f9c8f89e>] serial_port_out include/linux/serial_core.h:262 [inline]
 [<00000000f9c8f89e>] serial8250_console_putchar+0x4e/0x60 drivers/tty/serial/8250/8250_port.c:3104
 [<00000000869f334b>] uart_console_write+0x56/0xe0 drivers/tty/serial/serial_core.c:1885
 [<00000000620b1f59>] serial8250_console_write+0x2fb/0x860 drivers/tty/serial/8250/8250_port.c:3169
 [<00000000856191b2>] univ8250_console_write+0x5f/0x70 drivers/tty/serial/8250/8250_core.c:594
 [<0000000041c0814a>] call_console_drivers.isra.0.constprop.0+0x1ac/0x360 kernel/printk/printk.c:1594
 [<00000000dfb99379>] console_unlock+0x47c/0xb20 kernel/printk/printk.c:2454
 [<000000006e13e24f>] console_device+0x97/0xc0 kernel/printk/printk.c:2562
 [<00000000cec84b6f>] tty_lookup_driver drivers/tty/tty_io.c:2018 [inline]
 [<00000000cec84b6f>] tty_open_by_driver drivers/tty/tty_io.c:2063 [inline]
 [<00000000cec84b6f>] tty_open+0x796/0xe10 drivers/tty/tty_io.c:2140
 [<000000005a1ac4bf>] chrdev_open+0x230/0x630 fs/char_dev.c:398
 [<000000001fdd0416>] do_dentry_open+0x422/0xd20 fs/open.c:791
 [<000000007fdee762>] vfs_open+0x105/0x230 fs/open.c:904
 [<000000006d651794>] do_last fs/namei.c:3541 [inline]
 [<000000006d651794>] path_openat+0xbf5/0x2f60 fs/namei.c:3665
 [<00000000765385b3>] do_filp_open+0x1a1/0x280 fs/namei.c:3699
 [<00000000f74bba44>] do_sys_open+0x2f0/0x610 fs/open.c:1097
 [<00000000543c2169>] SYSC_open fs/open.c:1115 [inline]
 [<00000000543c2169>] SyS_open+0x2d/0x40 fs/open.c:1110
 [<0000000006a639d3>] do_syscall_64+0x1ad/0x5c0 arch/x86/entry/common.c:288
 [<0000000081e68432>] entry_SYSCALL_64_after_swapgs+0x5d/0xdb
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