INIT: Entering runlevel: 2

[info] Using makefile-style concurrent boot in runlevel 2.
[....] Starting enhanced syslogd: rsyslogd[?25l[?1c7[ ok 8[?25h[?0c.
[....] Starting periodic command scheduler: cron[?25l[?1c7[ ok 8[?25h[?0c.
[....] Starting OpenBSD Secure Shell server: sshd[?25l[?1c7[ ok 8[?25h[?0c.

Debian GNU/Linux 7 syzkaller ttyS0

Warning: Permanently added '10.128.10.36' (ECDSA) to the list of known hosts.
syzkaller login: [   41.172444][   T83] usb 1-1: new full-speed USB device number 2 using dummy_hcd
[   41.532016][   T83] usb 1-1: config 0 has an invalid interface number: 224 but max is 0
[   41.540249][   T83] usb 1-1: config 0 has no interface number 0
[   41.546403][   T83] usb 1-1: New USB device found, idVendor=10cf, idProduct=5502, bcdDevice=97.a1
[   41.555436][   T83] usb 1-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0
[   41.564655][   T83] usb 1-1: config 0 descriptor??
[   41.615902][   T83] kasan: CONFIG_KASAN_INLINE enabled
[   41.621298][   T83] kasan: GPF could be caused by NULL-ptr deref or user memory access
[   41.629422][   T83] general protection fault: 0000 [#1] SMP KASAN
[   41.635654][   T83] CPU: 1 PID: 83 Comm: kworker/1:2 Not tainted 5.3.0+ #0
[   41.642643][   T83] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   41.652679][   T83] Workqueue: usb_hub_wq hub_event
[   41.657677][   T83] RIP: 0010:vmk80xx_write_packet+0x75/0x260
[   41.663595][   T83] Code: 48 8d 7b 68 48 89 fa 48 c1 ea 03 80 3c 02 00 0f 85 d3 01 00 00 48 b8 00 00 00 00 00 fc ff df 4c 8b 6b 68 4c 89 ea 48 c1 ea 03 <0f> b6 04 02 4c 89 ea 83 e2 07 38 d0 7f 08 84 c0 0f 85 84 01 00 00
[   41.683199][   T83] RSP: 0018:ffff8881d93cf258 EFLAGS: 00010202
[   41.689240][   T83] RAX: dffffc0000000000 RBX: ffff8881d46100c0 RCX: 0000000000000000
[   41.697210][   T83] RDX: 0000000000000002 RSI: ffffffff84732443 RDI: ffff8881d4610128
[   41.705156][   T83] RBP: ffff8881d2e10000 R08: ffff8881d97d4800 R09: 0000000000000010
[   41.713102][   T83] R10: fffffbfff11f45b4 R11: ffffffff88fa2da7 R12: ffff8881d90c8880
[   41.721045][   T83] R13: 0000000000000010 R14: 0000000000000000 R15: ffff8881d598ae48
[   41.728991][   T83] FS:  0000000000000000(0000) GS:ffff8881db300000(0000) knlGS:0000000000000000
[   41.737892][   T83] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   41.744447][   T83] CR2: 00007f52af65b000 CR3: 00000001d46f0000 CR4: 00000000001406e0
[   41.752390][   T83] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   41.760333][   T83] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: