[....] Starting periodic command scheduler: cron[?25l[?1c7[ ok 8[?25h[?0c. Starting mcstransd: [....] Starting file context maintaining daemon:[ 39.119223] audit: type=1800 audit(1559911058.278:33): pid=7457 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=2465 res=0 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 syzkaller login: [ 43.586548] kauditd_printk_skb: 1 callbacks suppressed [ 43.586562] audit: type=1400 audit(1559911062.748:35): avc: denied { map } for pid=7631 comm="bash" path="/bin/bash" dev="sda1" ino=1457 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=system_u:object_r:file_t:s0 tclass=file permissive=1 Warning: Permanently added '10.128.0.185' (ECDSA) to the list of known hosts. executing program [ 50.239576] audit: type=1400 audit(1559911069.398:36): avc: denied { map } for pid=7643 comm="syz-executor181" path="/root/syz-executor181831587" 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 [ 50.282626] WARNING: CPU: 1 PID: 1277 at drivers/tty/tty_ioctl.c:319 tty_set_termios+0x7a5/0x8d0 [ 50.291647] Kernel panic - not syncing: panic_on_warn set ... [ 50.291647] [ 50.298995] CPU: 1 PID: 1277 Comm: kworker/u5:0 Not tainted 4.19.48 #20 [ 50.305766] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 50.315116] Workqueue: hci0 hci_power_on [ 50.319172] Call Trace: [ 50.321748] dump_stack+0x172/0x1f0 [ 50.325360] panic+0x263/0x507 [ 50.328548] ? __warn_printk+0xf3/0xf3 [ 50.332428] ? tty_set_termios+0x7a5/0x8d0 [ 50.336646] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 50.342165] ? __warn.cold+0x5/0x4a [ 50.345779] ? __warn+0xe8/0x1d0 [ 50.349303] ? tty_set_termios+0x7a5/0x8d0 [ 50.353521] __warn.cold+0x20/0x4a [ 50.357041] ? tty_set_termios+0x7a5/0x8d0 [ 50.361261] report_bug+0x263/0x2b0 [ 50.364871] do_error_trap+0x204/0x360 [ 50.368759] ? math_error+0x340/0x340 [ 50.372548] ? error_entry+0x76/0xd0 [ 50.376248] ? trace_hardirqs_off_caller+0x65/0x220 [ 50.381255] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 50.386083] do_invalid_op+0x1b/0x20 [ 50.389791] invalid_op+0x14/0x20 [ 50.393230] RIP: 0010:tty_set_termios+0x7a5/0x8d0 [ 50.398068] 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 49 fe ff ff e8 4b 65 05 fe <0f> 0b e9 3e f9 ff ff e8 9f c8 3b fe e9 d6 fa ff ff e8 95 c8 3b fe [ 50.416960] RSP: 0018:ffff8880a64df990 EFLAGS: 00010293 [ 50.422321] RAX: ffff8880a64ce080 RBX: ffff8880a64dfa50 RCX: ffffffff8365980d [ 50.429574] RDX: 0000000000000000 RSI: ffffffff83659ed5 RDI: 0000000000000005 [ 50.436824] RBP: ffff8880a64dfa78 R08: ffff8880a64ce080 R09: fffffbfff15dcbc1 [ 50.444073] R10: fffffbfff15dcbc0 R11: 0000000000000003 R12: ffff8880a64dfab8 [ 50.451324] R13: 0000000000010004 R14: 1ffff11014c9bf51 R15: ffff888093e7a1c0 [ 50.458584] ? tty_set_termios+0xdd/0x8d0 [ 50.462714] ? tty_set_termios+0x7a5/0x8d0 [ 50.466935] ? tty_wait_until_sent+0x580/0x580 [ 50.471514] ? __mutex_lock+0x3cd/0x1300 [ 50.475559] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 50.481082] ? tty_termios_encode_baud_rate+0x3ca/0x4e0 [ 50.486433] hci_uart_set_baudrate+0x157/0x1c0 [ 50.490998] ? hci_uart_set_speeds+0x90/0x90 [ 50.495396] ? debug_object_deactivate+0x1e4/0x360 [ 50.500312] hci_uart_setup+0xa2/0x490 [ 50.504200] ? hci_uart_set_baudrate+0x1c0/0x1c0 [ 50.508950] hci_dev_do_open+0x674/0x14a0 [ 50.513084] ? hci_rx_work+0xaa0/0xaa0 [ 50.516957] ? kasan_check_read+0x11/0x20 [ 50.521102] ? process_one_work+0x890/0x1750 [ 50.525493] ? find_held_lock+0x35/0x130 [ 50.529543] hci_power_on+0x10d/0x580 [ 50.533326] ? hci_error_reset+0xf0/0xf0 [ 50.537382] ? __lock_is_held+0xb6/0x140 [ 50.541443] process_one_work+0x989/0x1750 [ 50.545665] ? pwq_dec_nr_in_flight+0x320/0x320 [ 50.550318] ? kasan_check_write+0x14/0x20 [ 50.554534] ? do_raw_spin_lock+0xc8/0x240 [ 50.558766] worker_thread+0x98/0xe40 [ 50.562558] kthread+0x354/0x420 [ 50.565923] ? process_one_work+0x1750/0x1750 [ 50.570413] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 50.575934] ret_from_fork+0x24/0x30 [ 50.580923] Kernel Offset: disabled [ 50.584613] Rebooting in 86400 seconds..