[ 37.957181] audit: type=1800 audit(1549875669.070:27): pid=7626 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="startpar" name="restorecond" dev="sda1" ino=2436 res=0 [ 37.976463] audit: type=1800 audit(1549875669.070:28): pid=7626 uid=0 auid=4294967295 ses=4294967295 subj=_ 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. [ 38.539760] audit: type=1800 audit(1549875669.720:29): pid=7626 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="startpar" name="rc.local" dev="sda1" ino=2432 res=0 [....] startpar: service(s) returned failure: ssh ...[?25l[?1c7[FAIL8[?25h[?0c failed! Debian GNU/Linux 7 syzkaller ttyS0 Warning: Permanently added '10.128.0.164' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 66.056479] kasan: CONFIG_KASAN_INLINE enabled [ 66.061844] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 66.069210] general protection fault: 0000 [#1] PREEMPT SMP KASAN [ 66.075440] CPU: 1 PID: 1170 Comm: kworker/u5:0 Not tainted 5.0.0-rc6 #67 [ 66.082463] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 66.091805] Workqueue: hci0 hci_power_on [ 66.095856] RIP: 0010:qca_setup+0x134/0x1550 [ 66.100245] Code: c1 ea 03 80 3c 02 00 0f 85 08 12 00 00 48 b8 00 00 00 00 00 fc ff df 4c 8b 63 08 49 8d bc 24 f8 00 00 00 48 89 fa 48 c1 ea 03 <80> 3c 02 00 0f 85 d7 11 00 00 4d 8b ac 24 f8 00 00 00 49 8d 85 f0 [ 66.119509] RSP: 0018:ffff8880a793fa00 EFLAGS: 00010202 [ 66.124853] RAX: dffffc0000000000 RBX: ffff8880a5f60040 RCX: ffffffff84ecfa52 [ 66.132281] RDX: 000000000000001f RSI: ffffffff84ee0c01 RDI: 00000000000000f8 [ 66.139528] RBP: ffff8880a793fb50 R08: ffff8880a79402c0 R09: 0000000000000004 [ 66.146793] R10: ffffed1011a8306d R11: ffff88808d41836f R12: 0000000000000000 [ 66.154048] R13: ffff8880906bd400 R14: ffff8880a793fb28 R15: 0000000000000000 [ 66.161332] FS: 0000000000000000(0000) GS:ffff8880ae900000(0000) knlGS:0000000000000000 [ 66.169548] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 66.175629] CR2: 00007f2a8ce9c000 CR3: 0000000097f45000 CR4: 00000000001406e0 [ 66.182904] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 66.190158] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 66.197696] Call Trace: [ 66.200266] ? tty_termios_encode_baud_rate+0x3ca/0x4e0 [ 66.205798] ? qca_send_power_pulse+0x200/0x200 [ 66.210696] ? hci_uart_set_baudrate+0x157/0x1c0 [ 66.215587] ? debug_object_deactivate+0x1e4/0x360 [ 66.220514] ? qca_send_power_pulse+0x200/0x200 [ 66.225188] hci_uart_setup+0x1c4/0x490 [ 66.229296] ? hci_uart_set_baudrate+0x1c0/0x1c0 [ 66.234034] hci_dev_do_open+0x67e/0x14b0 [ 66.238161] ? hci_rx_work+0xaa0/0xaa0 [ 66.242030] ? kasan_check_read+0x11/0x20 [ 66.246157] ? process_one_work+0x890/0x1790 [ 66.250551] ? find_held_lock+0x35/0x130 [ 66.254593] hci_power_on+0x10d/0x580 [ 66.258377] ? hci_error_reset+0xf0/0xf0 [ 66.262420] ? __lock_is_held+0xb6/0x140 [ 66.266468] ? check_preemption_disabled+0x48/0x290 [ 66.271470] ? rcu_lockdep_current_cpu_online+0xe3/0x130 [ 66.276919] process_one_work+0x98e/0x1790 [ 66.281149] ? pwq_dec_nr_in_flight+0x320/0x320 [ 66.285811] worker_thread+0x98/0xe40 [ 66.289598] kthread+0x357/0x430 [ 66.293061] ? process_one_work+0x1790/0x1790 [ 66.297551] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 66.303075] ret_from_fork+0x3a/0x50 [ 66.306768] Modules linked in: [ 66.310412] ---[ end trace fc288de046e877c8 ]--- [ 66.315258] RIP: 0010:qca_setup+0x134/0x1550 [ 66.319670] Code: c1 ea 03 80 3c 02 00 0f 85 08 12 00 00 48 b8 00 00 00 00 00 fc ff df 4c 8b 63 08 49 8d bc 24 f8 00 00 00 48 89 fa 48 c1 ea 03 <80> 3c 02 00 0f 85 d7 11 00 00 4d 8b ac 24 f8 00 00 00 49 8d 85 f0 [ 66.338742] RSP: 0018:ffff8880a793fa00 EFLAGS: 00010202 [ 66.344308] RAX: dffffc0000000000 RBX: ffff8880a5f60040 RCX: ffffffff84ecfa52 [ 66.351704] RDX: 000000000000001f RSI: ffffffff84ee0c01 RDI: 00000000000000f8 [ 66.358964] RBP: ffff8880a793fb50 R08: ffff8880a79402c0 R09: 0000000000000004 [ 66.366261] R10: ffffed1011a8306d R11: ffff88808d41836f R12: 0000000000000000 [ 66.373559] R13: ffff8880906bd400 R14: ffff8880a793fb28 R15: 0000000000000000 [ 66.380855] FS: 0000000000000000(0000) GS:ffff8880ae900000(0000) knlGS:0000000000000000 [ 66.389083] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 66.394995] CR2: 00007f2a8ce9c000 CR3: 0000000097f45000 CR4: 00000000001406e0 [ 66.402307] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 66.409570] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 66.416861] Kernel panic - not syncing: Fatal exception [ 66.423189] Kernel Offset: disabled [ 66.426812] Rebooting in 86400 seconds..