[ 39.027309][ T26] audit: type=1800 audit(1555592615.259:26): pid=7689 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="mcstrans" dev="sda1" ino=2457 res=0 [ 39.060152][ T26] audit: type=1800 audit(1555592615.259:27): pid=7689 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="restorecond" dev="sda1" ino=2436 res=0 [ 39.091581][ T26] audit: type=1800 audit(1555592615.259:28): pid=7689 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="ssh" dev="sda1" ino=2417 res=0 [....] Starting periodic command scheduler: cron[?25l[?1c7[1G[[32m ok [39;49m8[?25h[?0c. [....] Starting OpenBSD Secure Shell server: sshd[?25l[?1c7[1G[[32m ok [39;49m8[?25h[?0c. [ 39.820508][ T26] audit: type=1800 audit(1555592616.079:29): pid=7689 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="rc.local" dev="sda1" ino=2432 res=0 Debian GNU/Linux 7 syzkaller ttyS0 Warning: Permanently added '10.128.1.63' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 50.826074][ T1173] WARNING: CPU: 0 PID: 1173 at drivers/tty/tty_ioctl.c:319 tty_set_termios+0x7a9/0x8d0 [ 50.835814][ T1173] Kernel panic - not syncing: panic_on_warn set ... [ 50.842507][ T1173] CPU: 0 PID: 1173 Comm: kworker/u5:0 Not tainted 5.1.0-rc5+ #74 [ 50.850212][ T1173] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 50.860274][ T1173] Workqueue: hci0 hci_power_on [ 50.865157][ T1173] Call Trace: [ 50.868475][ T1173] dump_stack+0x172/0x1f0 [ 50.872802][ T1173] ? tty_set_termios+0x700/0x8d0 [ 50.877733][ T1173] panic+0x2cb/0x65c [ 50.881616][ T1173] ? __warn_printk+0xf3/0xf3 [ 50.886225][ T1173] ? tty_set_termios+0x7a9/0x8d0 [ 50.891189][ T1173] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 50.897730][ T1173] ? __warn.cold+0x5/0x45 [ 50.902070][ T1173] ? __warn+0xe8/0x1d0 [ 50.906132][ T1173] ? tty_set_termios+0x7a9/0x8d0 [ 50.911053][ T1173] __warn.cold+0x20/0x45 [ 50.915277][ T1173] ? tty_set_termios+0x7a9/0x8d0 [ 50.920201][ T1173] report_bug+0x263/0x2b0 [ 50.924518][ T1173] do_error_trap+0x11b/0x200 [ 50.929089][ T1173] do_invalid_op+0x37/0x50 [ 50.933493][ T1173] ? tty_set_termios+0x7a9/0x8d0 [ 50.938419][ T1173] invalid_op+0x14/0x20 [ 50.942561][ T1173] RIP: 0010:tty_set_termios+0x7a9/0x8d0 [ 50.948105][ T1173] Code: 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 08 84 d2 0f 85 a3 00 00 00 45 89 a7 d0 03 00 00 e9 47 fe ff ff e8 07 7c fd fd <0f> 0b e9 3a f9 ff ff e8 8b 8b 35 fe e9 d2 fa ff ff e8 81 8b 35 fe [ 50.967711][ T1173] RSP: 0018:ffff8880a7f9f968 EFLAGS: 00010293 [ 50.973792][ T1173] RAX: ffff8880a7f72380 RBX: ffff8880a7f9fa28 RCX: ffffffff837309dd [ 50.981766][ T1173] RDX: 0000000000000000 RSI: ffffffff837310a9 RDI: 0000000000000005 [ 50.989725][ T1173] RBP: ffff8880a7f9fa50 R08: ffff8880a7f72380 R09: fffffbfff162a18d [ 50.997676][ T1173] R10: fffffbfff162a18c R11: 0000000000000003 R12: ffff8880a7f9fa90 [ 51.005642][ T1173] R13: 0000000000010004 R14: 1ffff11014ff3f4c R15: ffff888088fca5c0 [ 51.013632][ T1173] ? tty_set_termios+0xdd/0x8d0 [ 51.018465][ T1173] ? tty_set_termios+0x7a9/0x8d0 [ 51.023403][ T1173] ? tty_set_termios+0x7a9/0x8d0 [ 51.028324][ T1173] ? hci_dev_do_open+0xa3/0x1780 [ 51.033245][ T1173] ? tty_wait_until_sent+0x580/0x580 [ 51.038545][ T1173] ? __mutex_lock+0x3cd/0x1310 [ 51.043318][ T1173] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 51.049541][ T1173] ? tty_termios_encode_baud_rate+0x3ca/0x4e0 [ 51.055614][ T1173] hci_uart_set_baudrate+0x157/0x1c0 [ 51.060882][ T1173] ? hci_uart_set_speeds+0x90/0x90 [ 51.065975][ T1173] ? ret_from_fork+0x3a/0x50 [ 51.070554][ T1173] ? kasan_check_write+0x14/0x20 [ 51.075480][ T1173] ? graph_lock+0x7b/0x200 [ 51.079889][ T1173] hci_uart_setup+0xa2/0x490 [ 51.084505][ T1173] ? hci_uart_set_baudrate+0x1c0/0x1c0 [ 51.089949][ T1173] hci_dev_do_open+0x78c/0x1780 [ 51.094783][ T1173] ? hci_rx_work+0xaa0/0xaa0 [ 51.099533][ T1173] ? mark_held_locks+0xf0/0xf0 [ 51.104302][ T1173] hci_power_on+0x10d/0x580 [ 51.108794][ T1173] ? hci_error_reset+0xf0/0xf0 [ 51.113548][ T1173] process_one_work+0x98e/0x1790 [ 51.118470][ T1173] ? pwq_dec_nr_in_flight+0x320/0x320 [ 51.123845][ T1173] worker_thread+0x98/0xe40 [ 51.128372][ T1173] kthread+0x357/0x430 [ 51.132456][ T1173] ? process_one_work+0x1790/0x1790 [ 51.137655][ T1173] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 51.143882][ T1173] ret_from_fork+0x3a/0x50 [ 51.148946][ T1173] Kernel Offset: disabled [ 51.153340][ T1173] Rebooting in 86400 seconds..