[ 37.928346][ T26] audit: type=1800 audit(1550526702.055:26): pid=7587 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="mcstrans" dev="sda1" ino=2457 res=0 [ 37.955527][ T26] audit: type=1800 audit(1550526702.065:27): pid=7587 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="restorecond" dev="sda1" ino=2436 res=0 [ 37.980949][ T26] audit: type=1800 audit(1550526702.065:28): pid=7587 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[ ok 8[?25h[?0c. [....] Starting OpenBSD Secure Shell server: sshd[?25l[?1c7[ ok 8[?25h[?0c. [ 38.642856][ T26] audit: type=1800 audit(1550526702.805:29): pid=7587 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 '10.128.0.152' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 50.124771][ T1173] WARNING: CPU: 0 PID: 1173 at drivers/tty/tty_ioctl.c:319 tty_set_termios+0x7a9/0x8d0 [ 50.134459][ T1173] Kernel panic - not syncing: panic_on_warn set ... [ 50.141056][ T1173] CPU: 0 PID: 1173 Comm: kworker/u5:0 Not tainted 5.0.0-rc6-next-20190218 #37 [ 50.149872][ T1173] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 50.159919][ T1173] Workqueue: hci0 hci_power_on [ 50.164669][ T1173] Call Trace: [ 50.167942][ T1173] dump_stack+0x172/0x1f0 [ 50.172254][ T1173] ? tty_set_termios+0x720/0x8d0 [ 50.177178][ T1173] panic+0x2cb/0x65c [ 50.181072][ T1173] ? __warn_printk+0xf3/0xf3 [ 50.185674][ T1173] ? tty_set_termios+0x7a9/0x8d0 [ 50.190588][ T1173] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 50.196807][ T1173] ? __warn.cold+0x5/0x45 [ 50.201113][ T1173] ? __warn+0xe8/0x1d0 [ 50.205167][ T1173] ? tty_set_termios+0x7a9/0x8d0 [ 50.210081][ T1173] __warn.cold+0x20/0x45 [ 50.214303][ T1173] ? tty_set_termios+0x7a9/0x8d0 [ 50.219219][ T1173] report_bug+0x263/0x2b0 [ 50.223528][ T1173] do_error_trap+0x11b/0x200 [ 50.228107][ T1173] do_invalid_op+0x37/0x50 [ 50.232513][ T1173] ? tty_set_termios+0x7a9/0x8d0 [ 50.237433][ T1173] invalid_op+0x14/0x20 [ 50.241576][ T1173] RIP: 0010:tty_set_termios+0x7a9/0x8d0 [ 50.247097][ 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 87 e8 fe fd <0f> 0b e9 3a f9 ff ff e8 0b b6 36 fe e9 d2 fa ff ff e8 01 b6 36 fe [ 50.266674][ T1173] RSP: 0018:ffff8880a7ff7990 EFLAGS: 00010293 [ 50.272713][ T1173] RAX: ffff8880a7fe8380 RBX: ffff8880a7ff7a50 RCX: ffffffff837172bd [ 50.280660][ T1173] RDX: 0000000000000000 RSI: ffffffff83717989 RDI: 0000000000000005 [ 50.288656][ T1173] RBP: ffff8880a7ff7a78 R08: ffff8880a7fe8380 R09: fffffbfff161e52d [ 50.296610][ T1173] R10: fffffbfff161e52c R11: 0000000000000003 R12: ffff8880a7ff7ab8 [ 50.304560][ T1173] R13: 0000000000010004 R14: 1ffff11014ffef51 R15: ffff8880909ac440 [ 50.312520][ T1173] ? tty_set_termios+0xdd/0x8d0 [ 50.317359][ T1173] ? tty_set_termios+0x7a9/0x8d0 [ 50.322276][ T1173] ? tty_wait_until_sent+0x580/0x580 [ 50.327572][ T1173] ? __mutex_lock+0x3cd/0x1310 [ 50.332346][ T1173] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 50.338565][ T1173] ? tty_termios_encode_baud_rate+0x3ca/0x4e0 [ 50.344614][ T1173] hci_uart_set_baudrate+0x157/0x1c0 [ 50.349877][ T1173] ? hci_uart_set_speeds+0x90/0x90 [ 50.354993][ T1173] ? debug_object_deactivate+0x29e/0x330 [ 50.360619][ T1173] hci_uart_setup+0xa2/0x490 [ 50.365202][ T1173] ? hci_uart_set_baudrate+0x1c0/0x1c0 [ 50.370646][ T1173] hci_dev_do_open+0x67e/0x14b0 [ 50.375476][ T1173] ? hci_rx_work+0xaa0/0xaa0 [ 50.380072][ T1173] ? kasan_check_read+0x11/0x20 [ 50.384922][ T1173] ? process_one_work+0x890/0x1790 [ 50.390028][ T1173] ? find_held_lock+0x35/0x130 [ 50.394780][ T1173] hci_power_on+0x10d/0x580 [ 50.399263][ T1173] ? hci_error_reset+0xf0/0xf0 [ 50.404009][ T1173] process_one_work+0x98e/0x1790 [ 50.408931][ T1173] ? pwq_dec_nr_in_flight+0x320/0x320 [ 50.414286][ T1173] worker_thread+0x98/0xe40 [ 50.418777][ T1173] kthread+0x357/0x430 [ 50.422822][ T1173] ? process_one_work+0x1790/0x1790 [ 50.427993][ T1173] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 50.434211][ T1173] ret_from_fork+0x3a/0x50 [ 50.439728][ T1173] Kernel Offset: disabled [ 50.444097][ T1173] Rebooting in 86400 seconds..