[info] Using makefile-style concurrent boot in runlevel 2.
[   15.131777][    C1] random: crng init done
[....] 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 '10.128.0.204' (ECDSA) to the list of known hosts.
syzkaller login: [   26.957117][   T22] usb 1-1: new full-speed USB device number 2 using dummy_hcd
[   27.317208][   T22] usb 1-1: config 0 interface 0 altsetting 0 endpoint 0x81 has an invalid bInterval 0, changing to 10
[   27.328624][   T22] usb 1-1: config 0 interface 0 altsetting 0 endpoint 0x81 has invalid maxpacket 129, setting to 64
[   27.339435][   T22] usb 1-1: config 0 interface 0 altsetting 0 endpoint 0xF has invalid maxpacket 73, setting to 64
[   27.350100][   T22] usb 1-1: New USB device found, idVendor=0bc7, idProduct=0003, bcdDevice=2f.f7
[   27.359169][   T22] usb 1-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0
[   27.368720][   T22] usb 1-1: config 0 descriptor??
[   27.387268][ T1718] raw: raw_ioctl_ep_enable: fail, usb_ep_enable returned -22
[   27.394848][ T1718] raw: raw_ioctl_ep_enable: fail, usb_ep_enable returned -22
[   27.409151][   T22] ------------[ cut here ]------------
[   27.414715][   T22] usb 1-1: BOGUS urb xfer, pipe 1 != type 3
[   27.420914][   T22] WARNING: CPU: 1 PID: 22 at drivers/usb/core/urb.c:477 usb_submit_urb+0x1188/0x13b0
[   27.430365][   T22] Kernel panic - not syncing: panic_on_warn set ...
[   27.436942][   T22] CPU: 1 PID: 22 Comm: kworker/1:1 Not tainted 5.5.0-rc1-syzkaller #0
[   27.445083][   T22] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   27.455128][   T22] Workqueue: usb_hub_wq hub_event
[   27.460140][   T22] Call Trace:
[   27.463434][   T22]  dump_stack+0xef/0x16e
[   27.467677][   T22]  ? usb_submit_urb+0x1170/0x13b0
[   27.472710][   T22]  panic+0x2aa/0x6e1
[   27.476585][   T22]  ? add_taint.cold+0x16/0x16
[   27.481247][   T22]  ? __probe_kernel_read+0x188/0x1d0
[   27.486530][   T22]  ? __warn.cold+0x14/0x30
[   27.490977][   T22]  ? __warn+0xd5/0x1c8
[   27.495050][   T22]  ? usb_submit_urb+0x1188/0x13b0
[   27.500054][   T22]  __warn.cold+0x2f/0x30
[   27.504278][   T22]  ? usb_submit_urb+0x1188/0x13b0
[   27.509306][   T22]  report_bug+0x27b/0x2f0
[   27.513639][   T22]  do_error_trap+0x12b/0x1e0
[   27.518216][   T22]  ? usb_submit_urb+0x1188/0x13b0
[   27.523328][   T22]  do_invalid_op+0x32/0x40
[   27.527730][   T22]  ? usb_submit_urb+0x1188/0x13b0
[   27.532742][   T22]  invalid_op+0x23/0x30
[   27.536881][   T22] RIP: 0010:usb_submit_urb+0x1188/0x13b0
[   27.542493][   T22] Code: 4d 85 ed 74 2c e8 d8 8f e7 fd 4c 89 f7 e8 e0 2c 1d ff 41 89 d8 44 89 e1 4c 89 ea 48 89 c6 48 c7 c7 40 5a 15 86 e8 50 ac bc fd <0f> 0b e9 20 f4 ff ff e8 ac 8f e7 fd 4c 89 f2 48 b8 00 00 00 00 00
[   27.562092][   T22] RSP: 0018:ffff8881d8c370d8 EFLAGS: 00010286
[   27.568138][   T