[ 43.454964][ T26] audit: type=1800 audit(1555600221.179:32): pid=7826 uid=0 auid=4294967295 ses=4294967295 subj=system_u:system_r:kernel_t:s0 op=collect_data cause=failed(directio) comm="startpar" name="ssh" dev="sda1" ino=2417 res=0 Starting mcstransd: [....] Starting periodic command scheduler: cron[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting file context maintaining daemon: restorecond[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting OpenBSD Secure Shell server: sshd[?25l[?1c7[ ok 8[?25h[?0c. [ 44.349473][ T26] audit: type=1800 audit(1555600222.159:33): pid=7826 uid=0 auid=4294967295 ses=4294967295 subj=system_u:system_r:kernel_t:s0 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 '10.128.1.0' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 53.233419][ T26] kauditd_printk_skb: 2 callbacks suppressed [ 53.233434][ T26] audit: type=1400 audit(1555600231.039:36): avc: denied { map } for pid=8010 comm="syz-executor126" path="/root/syz-executor126647728" dev="sda1" ino=16483 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:object_r:user_home_t:s0 tclass=file permissive=1 [ 53.275374][ T1173] WARNING: CPU: 0 PID: 1173 at drivers/tty/tty_ioctl.c:319 tty_set_termios+0x7a9/0x8d0 [ 53.286600][ T1173] Kernel panic - not syncing: panic_on_warn set ... [ 53.293192][ T1173] CPU: 0 PID: 1173 Comm: kworker/u5:0 Not tainted 5.1.0-rc5+ #73 [ 53.300885][ T1173] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 53.310933][ T1173] Workqueue: hci0 hci_power_on [ 53.315671][ T1173] Call Trace: [ 53.318981][ T1173] dump_stack+0x172/0x1f0 [ 53.323297][ T1173] ? tty_set_termios+0x700/0x8d0 [ 53.328216][ T1173] panic+0x2cb/0x65c [ 53.332091][ T1173] ? __warn_printk+0xf3/0xf3 [ 53.336756][ T1173] ? tty_set_termios+0x7a9/0x8d0 [ 53.341690][ T1173] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 53.347915][ T1173] ? __warn.cold+0x5/0x45 [ 53.352226][ T1173] ? __warn+0xe8/0x1d0 [ 53.356296][ T1173] ? tty_set_termios+0x7a9/0x8d0 [ 53.361213][ T1173] __warn.cold+0x20/0x45 [ 53.365435][ T1173] ? tty_set_termios+0x7a9/0x8d0 [ 53.370374][ T1173] report_bug+0x263/0x2b0 [ 53.374695][ T1173] do_error_trap+0x11b/0x200 [ 53.379344][ T1173] do_invalid_op+0x37/0x50 [ 53.383744][ T1173] ? tty_set_termios+0x7a9/0x8d0 [ 53.388659][ T1173] invalid_op+0x14/0x20 [ 53.392810][ T1173] RIP: 0010:tty_set_termios+0x7a9/0x8d0 [ 53.398357][ 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 [ 53.418033][ T1173] RSP: 0018:ffff8880a7f87968 EFLAGS: 00010293 [ 53.424086][ T1173] RAX: ffff8880a7fec380 RBX: ffff8880a7f87a28 RCX: ffffffff837309dd [ 53.432039][ T1173] RDX: 0000000000000000 RSI: ffffffff837310a9 RDI: 0000000000000005 [ 53.439990][ T1173] RBP: ffff8880a7f87a50 R08: ffff8880a7fec380 R09: fffffbfff162a18d [ 53.447942][ T1173] R10: fffffbfff162a18c R11: 0000000000000003 R12: ffff8880a7f87a90 [ 53.455895][ T1173] R13: 0000000000010004 R14: 1ffff11014ff0f4c R15: ffff8880a0ba6940 [ 53.463881][ T1173] ? tty_set_termios+0xdd/0x8d0 [ 53.468744][ T1173] ? tty_set_termios+0x7a9/0x8d0 [ 53.473665][ T1173] ? tty_set_termios+0x7a9/0x8d0 [ 53.478584][ T1173] ? hci_dev_do_open+0xa3/0x1780 [ 53.483522][ T1173] ? tty_wait_until_sent+0x580/0x580 [ 53.488790][ T1173] ? __mutex_lock+0x3cd/0x1310 [ 53.493534][ T1173] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 53.500032][ T1173] ? tty_termios_encode_baud_rate+0x3ca/0x4e0 [ 53.506180][ T1173] hci_uart_set_baudrate+0x157/0x1c0 [ 53.511456][ T1173] ? hci_uart_set_speeds+0x90/0x90 [ 53.516564][ T1173] ? ret_from_fork+0x3a/0x50 [ 53.521341][ T1173] ? kasan_check_write+0x14/0x20 [ 53.527977][ T1173] ? graph_lock+0x7b/0x200 [ 53.532387][ T1173] hci_uart_setup+0xa2/0x490 [ 53.536966][ T1173] ? hci_uart_set_baudrate+0x1c0/0x1c0 [ 53.542573][ T1173] hci_dev_do_open+0x78c/0x1780 [ 53.547411][ T1173] ? hci_rx_work+0xaa0/0xaa0 [ 53.551988][ T1173] ? mark_held_locks+0xf0/0xf0 [ 53.556840][ T1173] hci_power_on+0x10d/0x580 [ 53.562125][ T1173] ? hci_error_reset+0xf0/0xf0 [ 53.566887][ T1173] process_one_work+0x98e/0x1790 [ 53.572024][ T1173] ? pwq_dec_nr_in_flight+0x320/0x320 [ 53.577401][ T1173] worker_thread+0x98/0xe40 [ 53.581895][ T1173] kthread+0x357/0x430 [ 53.585942][ T1173] ? process_one_work+0x1790/0x1790 [ 53.591130][ T1173] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 53.597360][ T1173] ret_from_fork+0x3a/0x50 [ 53.603021][ T1173] Kernel Offset: disabled [ 53.607432][ T1173] Rebooting in 86400 seconds..