Warning: Permanently added '10.128.0.230' (ECDSA) to the list of known hosts.
syzkaller login: [   30.669462] IPVS: ftp: loaded support on port[0] = 21
executing program
[   30.720251] ------------[ cut here ]------------
[   30.725129] WARNING: CPU: 1 PID: 7984 at drivers/tty/tty_ioctl.c:318 tty_set_termios+0x708/0x810
[   30.734153] Kernel panic - not syncing: panic_on_warn set ...
[   30.734153] 
[   30.741523] CPU: 1 PID: 7984 Comm: kworker/u5:2 Not tainted 4.14.213-syzkaller #0
[   30.749147] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   30.758521] Workqueue: hci1 hci_power_on
[   30.762572] Call Trace:
[   30.765175]  dump_stack+0x1b2/0x283
[   30.768797]  panic+0x1f9/0x42d
[   30.772002]  ? add_taint.cold+0x16/0x16
[   30.775986]  ? tty_set_termios+0x708/0x810
[   30.780213]  ? tty_set_termios+0x708/0x810
[   30.784452]  __warn.cold+0x20/0x4b
[   30.788006]  ? ist_end_non_atomic+0x10/0x10
[   30.792319]  ? tty_set_termios+0x708/0x810
[   30.796545]  report_bug+0x208/0x249
[   30.800171]  do_error_trap+0x195/0x2d0
[   30.804050]  ? math_error+0x2d0/0x2d0
[   30.807841]  ? trace_hardirqs_on+0x10/0x10
[   30.812068]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[   30.816914]  invalid_op+0x1b/0x40
[   30.820380] RIP: 0010:tty_set_termios+0x708/0x810
[   30.825205] RSP: 0018:ffff88809acb7b20 EFLAGS: 00010297
[   30.830561] RAX: ffff8880b28a6640 RBX: ffff88809acb7c28 RCX: dffffc0000000000
[   30.837833] RDX: 0000000000000000 RSI: ffff88809acb7c28 RDI: ffff888238f9ee38
[   30.845108] RBP: ffff888238f9ee00 R08: 0000000000000000 R09: 000000000004058f
[   30.852384] R10: ffff8880b28a6f18 R11: ffff8880b28a6640 R12: ffff888096a74280
[   30.859645] R13: ffff8880a9220800 R14: 000000000001c200 R15: ffff8880b1ecce98
[   30.866949]  ? tty_wait_until_sent+0x470/0x470
[   30.871527]  ? hci_dev_do_open+0x3d/0xe30
[   30.875678]  ? __mutex_lock+0x360/0x1310
[   30.879751]  ? tty_termios_encode_baud_rate+0x2f9/0x410
[   30.885111]  hci_uart_set_baudrate+0x13d/0x270
[   30.889696]  ? hci_uart_set_speeds+0x90/0x90
[   30.894117]  ? lock_downgrade+0x740/0x740
[   30.898268]  ? hci_sock_dev_event+0x82/0x5f0
[   30.902673]  hci_uart_setup+0x8c/0x410
[   30.906553]  ? hci_uart_set_baudrate+0x270/0x270
[   30.911325]  hci_dev_do_open+0x34c/0xe30
[   30.915403]  ? lock_acquire+0x170/0x3f0
[   30.919403]  hci_power_on+0x97/0x3b0
[   30.923114]  process_one_work+0x793/0x14a0
[   30.927352]  ? work_busy+0x320/0x320
[   30.931059]  ? worker_thread+0x158/0xff0
[   30.935136]  ? _raw_spin_unlock_irq+0x24/0x80
[   30.939631]  worker_thread+0x5cc/0xff0
[   30.943585]  ? rescuer_thread+0xc80/0xc80
[   30.947727]  kthread+0x30d/0x420
[   30.951100]  ? kthread_create_on_node+0xd0/0xd0
[   30.955813]  ret_from_fork+0x24/0x30
[   30.960180] Kernel Offset: disabled
[   30.963833] Rebooting in 86400 seconds..