[ 33.920629][ T26] audit: type=1800 audit(1553169389.857:27): pid=7372 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="restorecond" dev="sda1" ino=2436 res=0 [ 33.948939][ T26] audit: type=1800 audit(1553169389.857:28): pid=7372 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. [ 34.453572][ T26] audit: type=1800 audit(1553169390.437:29): pid=7372 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 [ 34.477569][ T26] audit: type=1800 audit(1553169390.437:30): pid=7372 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 '10.128.10.29' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 55.713079][ T1173] BUG: unable to handle kernel NULL pointer dereference at 0000000000000000 [ 55.721778][ T1173] #PF error: [INSTR] [ 55.725646][ T1173] PGD 8d5f1067 P4D 8d5f1067 PUD 84c9a067 PMD 0 [ 55.732050][ T1173] Oops: 0010 [#1] PREEMPT SMP KASAN [ 55.737235][ T1173] CPU: 1 PID: 1173 Comm: kworker/u5:0 Not tainted 5.1.0-rc1+ #31 [ 55.744930][ T1173] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 55.755014][ T1173] Workqueue: hci0 hci_power_on [ 55.759765][ T1173] RIP: 0010: (null) [ 55.764341][ T1173] Code: Bad RIP value. [ 55.768513][ T1173] RSP: 0018:ffff8880a7fb7a28 EFLAGS: 00010246 [ 55.774554][ T1173] RAX: 0000000000000000 RBX: ffffffff87ac4d20 RCX: 0000000000000000 [ 55.782509][ T1173] RDX: 1ffffffff0f589bd RSI: 1ffff11014ff398f RDI: ffff888081edc0c0 [ 55.790562][ T1173] RBP: ffff8880a7fb7b00 R08: ffff8880a7f9c380 R09: 0000000000000004 [ 55.798515][ T1173] R10: ffffed10103db81d R11: ffff888081edc0ef R12: ffff888081edc0c0 [ 55.806472][ T1173] R13: 1ffff11014ff6f47 R14: ffff888081edc0d0 R15: 0000000000000000 [ 55.814428][ T1173] FS: 0000000000000000(0000) GS:ffff8880ae900000(0000) knlGS:0000000000000000 [ 55.823449][ T1173] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 55.830021][ T1173] CR2: ffffffffffffffd6 CR3: 00000000a5bef000 CR4: 00000000001406e0 [ 55.837982][ T1173] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 55.845950][ T1173] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 55.853950][ T1173] Call Trace: [ 55.857237][ T1173] hci_uart_set_flow_control+0x41e/0x600 [ 55.862859][ T1173] ? hci_uart_init_ready+0xc0/0xc0 [ 55.868108][ T1173] ? hci_uart_set_baudrate+0x157/0x1c0 [ 55.873548][ T1173] mrvl_setup+0x22/0x110 [ 55.877785][ T1173] ? mrvl_load_firmware+0x5b0/0x5b0 [ 55.883066][ T1173] hci_uart_setup+0x1c4/0x490 [ 55.887721][ T1173] ? hci_uart_set_baudrate+0x1c0/0x1c0 [ 55.893218][ T1173] hci_dev_do_open+0x78c/0x1780 [ 55.898078][ T1173] ? hci_rx_work+0xaa0/0xaa0 [ 55.902652][ T1173] ? mark_held_locks+0xf0/0xf0 [ 55.907524][ T1173] hci_power_on+0x10d/0x580 [ 55.912057][ T1173] ? hci_error_reset+0xf0/0xf0 [ 55.916809][ T1173] process_one_work+0x98e/0x1790 [ 55.921728][ T1173] ? pwq_dec_nr_in_flight+0x320/0x320 [ 55.927102][ T1173] worker_thread+0x98/0xe40 [ 55.931761][ T1173] kthread+0x357/0x430 [ 55.935940][ T1173] ? process_one_work+0x1790/0x1790 [ 55.941129][ T1173] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 55.947370][ T1173] ret_from_fork+0x3a/0x50 [ 55.951769][ T1173] Modules linked in: [ 55.955642][ T1173] CR2: 0000000000000000 [ 55.959777][ T1173] ---[ end trace d9ddb772acb2ca45 ]--- [ 55.965207][ T1173] RIP: 0010: (null) [ 55.969783][ T1173] Code: Bad RIP value. [ 55.973829][ T1173] RSP: 0018:ffff8880a7fb7a28 EFLAGS: 00010246 [ 55.979873][ T1173] RAX: 0000000000000000 RBX: ffffffff87ac4d20 RCX: 0000000000000000 [ 55.987816][ T1173] RDX: 1ffffffff0f589bd RSI: 1ffff11014ff398f RDI: ffff888081edc0c0 [ 55.995768][ T1173] RBP: ffff8880a7fb7b00 R08: ffff8880a7f9c380 R09: 0000000000000004 [ 56.003777][ T1173] R10: ffffed10103db81d R11: ffff888081edc0ef R12: ffff888081edc0c0 [ 56.011746][ T1173] R13: 1ffff11014ff6f47 R14: ffff888081edc0d0 R15: 0000000000000000 [ 56.019704][ T1173] FS: 0000000000000000(0000) GS:ffff8880ae900000(0000) knlGS:0000000000000000 [ 56.028611][ T1173] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 56.035236][ T1173] CR2: ffffffffffffffd6 CR3: 00000000a5bef000 CR4: 00000000001406e0 [ 56.043194][ T1173] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 56.051152][ T1173] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 56.059109][ T1173] Kernel panic - not syncing: Fatal exception [ 56.066048][ T1173] Kernel Offset: disabled [ 56.070372][ T1173] Rebooting in 86400 seconds..