[ 39.142919] audit: type=1800 audit(1550526714.999:31): pid=7694 uid=0 auid=4294967295 ses=4294967295 subj=system_u:system_r:kernel_t:s0 op=collect_data cause=failed(directio) comm="startpar" name="restorecond" dev="sda1" ino=2436 res=0 [ 39.178144] audit: type=1800 audit(1550526714.999:32): pid=7694 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. Debian GNU/Linux 7 syzkaller ttyS0 Warning: Permanently added '10.128.0.189' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 47.842349] kauditd_printk_skb: 3 callbacks suppressed [ 47.842364] audit: type=1400 audit(1550526723.749:36): avc: denied { map } for pid=7881 comm="syz-executor343" path="/root/syz-executor343952144" 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 [ 47.890487] WARNING: CPU: 1 PID: 1171 at drivers/tty/tty_ioctl.c:319 tty_set_termios+0x7a9/0x8d0 [ 47.899466] Kernel panic - not syncing: panic_on_warn set ... [ 47.905334] CPU: 1 PID: 1171 Comm: kworker/u5:0 Not tainted 5.0.0-rc7 #77 [ 47.912241] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 47.921578] Workqueue: hci0 hci_power_on [ 47.925621] Call Trace: [ 47.928192] dump_stack+0x172/0x1f0 [ 47.931800] ? tty_set_termios+0x700/0x8d0 [ 47.936018] panic+0x2cb/0x65c [ 47.939192] ? __warn_printk+0xf3/0xf3 [ 47.943061] ? tty_set_termios+0x7a9/0x8d0 [ 47.947274] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 47.952794] ? __warn.cold+0x5/0x45 [ 47.956407] ? __warn+0xe8/0x1d0 [ 47.959754] ? tty_set_termios+0x7a9/0x8d0 [ 47.963967] __warn.cold+0x20/0x45 [ 47.967487] ? tty_set_termios+0x7a9/0x8d0 [ 47.971702] report_bug+0x263/0x2b0 [ 47.975317] do_error_trap+0x11b/0x200 [ 47.979185] do_invalid_op+0x37/0x50 [ 47.982875] ? tty_set_termios+0x7a9/0x8d0 [ 47.987090] invalid_op+0x14/0x20 [ 47.990521] RIP: 0010:tty_set_termios+0x7a9/0x8d0 [ 47.995342] 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 d7 3f 03 fe <0f> 0b e9 3a f9 ff ff e8 db 3e 3a fe e9 d2 fa ff ff e8 d1 3e 3a fe [ 48.014221] RSP: 0018:ffff8880a7967990 EFLAGS: 00010293 [ 48.019566] RAX: ffff8880a7954300 RBX: ffff8880a7967a50 RCX: ffffffff836c9add [ 48.026818] RDX: 0000000000000000 RSI: ffffffff836ca1a9 RDI: 0000000000000005 [ 48.034069] RBP: ffff8880a7967a78 R08: ffff8880a7954300 R09: fffffbfff161bcad [ 48.041316] R10: fffffbfff161bcac R11: 0000000000000003 R12: ffff8880a7967ab8 [ 48.048566] R13: 0000000000010004 R14: 1ffff11014f2cf51 R15: ffff88809aaf2b80 [ 48.055824] ? tty_set_termios+0xdd/0x8d0 [ 48.059952] ? tty_set_termios+0x7a9/0x8d0 [ 48.064170] ? tty_wait_until_sent+0x580/0x580 [ 48.068733] ? __mutex_lock+0x3cd/0x1310 [ 48.072774] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 48.078300] ? tty_termios_encode_baud_rate+0x3ca/0x4e0 [ 48.083650] hci_uart_set_baudrate+0x157/0x1c0 [ 48.088214] ? hci_uart_set_speeds+0x90/0x90 [ 48.092607] ? debug_object_deactivate+0x1e4/0x360 [ 48.097517] hci_uart_setup+0xa2/0x490 [ 48.101386] ? hci_uart_set_baudrate+0x1c0/0x1c0 [ 48.106121] hci_dev_do_open+0x67e/0x14b0 [ 48.110249] ? hci_rx_work+0xaa0/0xaa0 [ 48.114126] ? kasan_check_read+0x11/0x20 [ 48.118260] ? process_one_work+0x890/0x1790 [ 48.122663] ? find_held_lock+0x35/0x130 [ 48.126709] hci_power_on+0x10d/0x580 [ 48.130491] ? hci_error_reset+0xf0/0xf0 [ 48.134534] ? __lock_is_held+0xb6/0x140 [ 48.138577] ? check_preemption_disabled+0x48/0x290 [ 48.143576] ? rcu_lockdep_current_cpu_online+0xe3/0x130 [ 48.149010] process_one_work+0x98e/0x1790 [ 48.153231] ? pwq_dec_nr_in_flight+0x320/0x320 [ 48.157889] worker_thread+0x98/0xe40 [ 48.161679] kthread+0x357/0x430 [ 48.165025] ? process_one_work+0x1790/0x1790 [ 48.169498] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 48.175017] ret_from_fork+0x3a/0x50 [ 48.179869] Kernel Offset: disabled [ 48.183540] Rebooting in 86400 seconds..