[ 34.632549][ T26] audit: type=1800 audit(1553169539.996:27): pid=7302 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="restorecond" dev="sda1" ino=2436 res=0 [ 34.655724][ T26] audit: type=1800 audit(1553169539.996:28): pid=7302 uid=0 auid=4294967295 ses=4294967295 subj==unconfined 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. [ 35.628601][ T26] audit: type=1800 audit(1553169541.056:29): pid=7302 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="rc.local" dev="sda1" ino=2432 res=0 [ 35.648848][ T26] audit: type=1800 audit(1553169541.056:30): pid=7302 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="rmnologin" dev="sda1" ino=2423 res=0 Debian GNU/Linux 7 syzkaller ttyS0 Warning: Permanently added '10.128.0.230' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 42.420849][ T1174] BUG: unable to handle kernel NULL pointer dereference at 0000000000000000 [ 42.429652][ T1174] #PF error: [INSTR] [ 42.433525][ T1174] PGD 98403067 P4D 98403067 PUD 98404067 PMD 0 [ 42.439756][ T1174] Oops: 0010 [#1] PREEMPT SMP KASAN [ 42.444926][ T1174] CPU: 1 PID: 1174 Comm: kworker/u5:0 Not tainted 5.1.0-rc1+ #31 [ 42.452615][ T1174] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 42.462675][ T1174] Workqueue: hci0 hci_power_on [ 42.467411][ T1174] RIP: 0010: (null) [ 42.471980][ T1174] Code: Bad RIP value. [ 42.476033][ T1174] RSP: 0018:ffff8880a7fdfa28 EFLAGS: 00010246 [ 42.482074][ T1174] RAX: 0000000000000000 RBX: ffffffff87ac4d20 RCX: 0000000000000000 [ 42.490017][ T1174] RDX: 1ffffffff0f589bd RSI: 1ffff11014fead97 RDI: ffff888086a48e80 [ 42.497963][ T1174] RBP: ffff8880a7fdfb00 R08: ffff8880a7f563c0 R09: 0000000000000004 [ 42.505918][ T1174] R10: ffffed1010d491d5 R11: ffff888086a48eaf R12: ffff888086a48e80 [ 42.513863][ T1174] R13: 1ffff11014ffbf47 R14: ffff888086a48e90 R15: 0000000000000000 [ 42.521808][ T1174] FS: 0000000000000000(0000) GS:ffff8880ae900000(0000) knlGS:0000000000000000 [ 42.530708][ T1174] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 42.537265][ T1174] CR2: ffffffffffffffd6 CR3: 0000000098401000 CR4: 00000000001406e0 [ 42.545558][ T1174] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 42.553506][ T1174] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 42.561452][ T1174] Call Trace: [ 42.564720][ T1174] hci_uart_set_flow_control+0x41e/0x600 [ 42.570343][ T1174] ? hci_uart_init_ready+0xc0/0xc0 [ 42.575426][ T1174] ? hci_uart_set_baudrate+0x157/0x1c0 [ 42.580872][ T1174] mrvl_setup+0x22/0x110 [ 42.585087][ T1174] ? mrvl_load_firmware+0x5b0/0x5b0 [ 42.590257][ T1174] hci_uart_setup+0x1c4/0x490 [ 42.594906][ T1174] ? hci_uart_set_baudrate+0x1c0/0x1c0 [ 42.600336][ T1174] hci_dev_do_open+0x78c/0x1780 [ 42.605160][ T1174] ? hci_rx_work+0xaa0/0xaa0 [ 42.609724][ T1174] ? mark_held_locks+0xf0/0xf0 [ 42.614472][ T1174] hci_power_on+0x10d/0x580 [ 42.618960][ T1174] ? hci_error_reset+0xf0/0xf0 [ 42.623703][ T1174] process_one_work+0x98e/0x1790 [ 42.628625][ T1174] ? pwq_dec_nr_in_flight+0x320/0x320 [ 42.633977][ T1174] worker_thread+0x98/0xe40 [ 42.638468][ T1174] kthread+0x357/0x430 [ 42.642511][ T1174] ? process_one_work+0x1790/0x1790 [ 42.647687][ T1174] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 42.653901][ T1174] ret_from_fork+0x3a/0x50 [ 42.658288][ T1174] Modules linked in: [ 42.662160][ T1174] CR2: 0000000000000000 [ 42.666304][ T1174] ---[ end trace aa670691529a3229 ]--- [ 42.671735][ T1174] RIP: 0010: (null) [ 42.676305][ T1174] Code: Bad RIP value. [ 42.680341][ T1174] RSP: 0018:ffff8880a7fdfa28 EFLAGS: 00010246 [ 42.686377][ T1174] RAX: 0000000000000000 RBX: ffffffff87ac4d20 RCX: 0000000000000000 [ 42.694330][ T1174] RDX: 1ffffffff0f589bd RSI: 1ffff11014fead97 RDI: ffff888086a48e80 [ 42.702287][ T1174] RBP: ffff8880a7fdfb00 R08: ffff8880a7f563c0 R09: 0000000000000004 [ 42.715626][ T1174] R10: ffffed1010d491d5 R11: ffff888086a48eaf R12: ffff888086a48e80 [ 42.723579][ T1174] R13: 1ffff11014ffbf47 R14: ffff888086a48e90 R15: 0000000000000000 [ 42.740288][ T1174] FS: 0000000000000000(0000) GS:ffff8880ae900000(0000) knlGS:0000000000000000 [ 42.749349][ T1174] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 42.756183][ T1174] CR2: ffffffffffffffd6 CR3: 0000000098401000 CR4: 00000000001406e0 [ 42.764538][ T1174] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 42.772499][ T1174] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 42.780464][ T1174] Kernel panic - not syncing: Fatal exception [ 42.787504][ T1174] Kernel Offset: disabled [ 42.792076][ T1174] Rebooting in 86400 seconds..