[ 47.414353] audit: type=1800 audit(1547349993.025:30): pid=8234 uid=0 auid=4294967295 ses=4294967295 subj=system_u:system_r:kernel_t:s0 op=collect_data cause=failed(directio) comm="startpar" name="mcstrans" dev="sda1" ino=2457 res=0 Starting mcstransd: [....] Starting periodic command scheduler: cron[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting OpenBSD Secure Shell server: sshd[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting file context maintaining daemon: restorecond[?25l[?1c7[ ok 8[?25h[?0c. Debian GNU/Linux 7 syzkaller ttyS0 syzkaller login: [ 51.447575] kauditd_printk_skb: 4 callbacks suppressed [ 51.447589] audit: type=1400 audit(1547349997.075:35): avc: denied { map } for pid=8408 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 '10.128.0.178' (ECDSA) to the list of known hosts. executing program [ 58.295406] audit: type=1400 audit(1547350003.925:36): avc: denied { map } for pid=8420 comm="syz-executor111" path="/root/syz-executor111534143" 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 [ 58.330184] WARNING: CPU: 0 PID: 1170 at drivers/tty/tty_ioctl.c:319 tty_set_termios+0x93a/0xac0 [ 58.339187] Kernel panic - not syncing: panic_on_warn set ... [ 58.345065] CPU: 0 PID: 1170 Comm: kworker/u5:0 Not tainted 5.0.0-rc1+ #22 [ 58.352063] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 58.361414] Workqueue: hci0 hci_power_on [ 58.365463] Call Trace: [ 58.368042] dump_stack+0x1db/0x2d0 [ 58.371662] ? dump_stack_print_info.cold+0x20/0x20 [ 58.376674] ? tty_set_termios+0x8b0/0xac0 [ 58.380902] panic+0x2cb/0x65c [ 58.384086] ? add_taint.cold+0x16/0x16 [ 58.388052] ? tty_set_termios+0x93a/0xac0 [ 58.392280] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 58.397810] ? __probe_kernel_read+0x1f4/0x250 [ 58.402383] ? __warn.cold+0x5/0x48 [ 58.406000] ? __warn+0xe8/0x1d0 [ 58.409358] ? tty_set_termios+0x93a/0xac0 [ 58.413584] __warn.cold+0x20/0x48 [ 58.417115] ? tty_set_termios+0x93a/0xac0 [ 58.421343] report_bug+0x263/0x2b0 [ 58.424963] do_error_trap+0x11b/0x200 [ 58.428842] do_invalid_op+0x37/0x50 [ 58.432548] ? tty_set_termios+0x93a/0xac0 [ 58.436777] invalid_op+0x14/0x20 [ 58.440243] RIP: 0010:tty_set_termios+0x93a/0xac0 [ 58.445078] Code: 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 08 84 d2 0f 85 ec 00 00 00 41 89 9f d0 03 00 00 e9 f6 fd ff ff e8 d6 18 a8 fd <0f> 0b e9 a9 f7 ff ff e8 4a 04 ec fd e9 48 f9 ff ff 4c 89 ef e8 9d [ 58.464002] RSP: 0018:ffff8880a7487600 EFLAGS: 00010293 [ 58.469358] RAX: ffff8880a742e2c0 RBX: ffff8880a74876c0 RCX: ffffffff83d9d62d [ 58.476615] RDX: 0000000000000000 RSI: ffffffff83d9de8a RDI: 0000000000000005 [ 58.483910] RBP: ffff8880a74876e8 R08: ffff8880a742e2c0 R09: fffffbfff181d7b5 [ 58.491172] R10: fffffbfff181d7b4 R11: 0000000000000003 R12: ffff8880a7487728 [ 58.498432] R13: 0000000000010004 R14: 000000000001c200 R15: ffff88808a884b00 [ 58.505701] ? tty_set_termios+0xdd/0xac0 [ 58.509840] ? tty_set_termios+0x93a/0xac0 [ 58.514067] ? save_trace+0xe0/0x290 [ 58.517780] ? tty_wait_until_sent+0x5d0/0x5d0 [ 58.522355] ? kasan_check_read+0x11/0x20 [ 58.526493] ? __lock_acquire+0x2514/0x4a30 [ 58.530807] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 58.536374] ? tty_termios_encode_baud_rate+0x3ca/0x4e0 [ 58.541739] hci_uart_set_baudrate+0x1cc/0x250 [ 58.546315] ? hci_uart_set_speeds+0x90/0x90 [ 58.550759] ? hci_send_monitor_ctrl_event+0x520/0x520 [ 58.556031] ? find_held_lock+0x35/0x120 [ 58.560124] hci_uart_setup+0xa2/0x490 [ 58.564003] ? hci_uart_set_baudrate+0x250/0x250 [ 58.568752] hci_dev_do_open+0x6b1/0x1920 [ 58.572896] ? hci_rx_work+0xcd0/0xcd0 [ 58.576778] ? process_one_work+0xbf1/0x1ce0 [ 58.581177] ? find_held_lock+0x35/0x120 [ 58.585248] ? add_lock_to_list.isra.0+0x450/0x450 [ 58.590170] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 58.595695] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 58.601244] ? check_preemption_disabled+0x48/0x290 [ 58.606289] hci_power_on+0x10d/0x880 [ 58.610082] ? hci_error_reset+0xf0/0xf0 [ 58.614132] ? __lock_is_held+0xb6/0x140 [ 58.618192] process_one_work+0xd0c/0x1ce0 [ 58.622419] ? __wake_up_common_lock+0x1db/0x390 [ 58.627172] ? pwq_dec_nr_in_flight+0x4a0/0x4a0 [ 58.631835] ? trace_hardirqs_off+0xb8/0x310 [ 58.636249] ? kasan_check_read+0x11/0x20 [ 58.640390] ? do_raw_spin_unlock+0xa0/0x330 [ 58.644825] ? do_raw_spin_trylock+0x270/0x270 [ 58.649407] ? __wake_up_common+0x7d0/0x7d0 [ 58.653720] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 58.659269] ? get_work_pool_id+0x1a0/0x1a0 [ 58.663578] ? trace_hardirqs_on_caller+0x310/0x310 [ 58.668591] worker_thread+0x143/0x14a0 [ 58.672564] ? process_one_work+0x1ce0/0x1ce0 [ 58.677048] ? __kthread_parkme+0xc3/0x1b0 [ 58.681277] ? lock_acquire+0x1db/0x570 [ 58.685262] ? _raw_spin_unlock_irqrestore+0x6b/0xe0 [ 58.690357] ? lockdep_hardirqs_on+0x415/0x5d0 [ 58.694966] ? trace_hardirqs_on+0xbd/0x310 [ 58.699279] ? kasan_check_read+0x11/0x20 [ 58.703418] ? __kthread_parkme+0xc3/0x1b0 [ 58.707655] ? trace_hardirqs_off_caller+0x300/0x300 [ 58.712760] ? do_raw_spin_trylock+0x270/0x270 [ 58.717333] ? schedule+0x108/0x350 [ 58.720955] ? _raw_spin_unlock_irqrestore+0xa4/0xe0 [ 58.726055] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 58.731586] ? __kthread_parkme+0xfb/0x1b0 [ 58.735815] kthread+0x357/0x430 [ 58.739176] ? process_one_work+0x1ce0/0x1ce0 [ 58.743719] ? kthread_stop+0x920/0x920 [ 58.747699] ret_from_fork+0x3a/0x50 [ 58.752423] Kernel Offset: disabled [ 58.756096] Rebooting in 86400 seconds..