[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[   15.171543][ T1663] random: sshd: uninitialized urandom read (32 bytes read)
[?25l[?1c7[ ok 8[?25h[?0c.
[   15.293089][    C1] random: crng init done

Debian GNU/Linux 7 syzkaller ttyS0

Warning: Permanently added '10.128.10.37' (ECDSA) to the list of known hosts.
executing program
syzkaller login: [   34.858174][   T78] usb 1-1: new high-speed USB device number 2 using dummy_hcd
[   35.097672][   T78] usb 1-1: Using ep0 maxpacket: 8
[   35.217710][   T78] usb 1-1: config 0 interface 0 altsetting 0 endpoint 0x81 has an invalid bInterval 0, changing to 7
[   35.228707][   T78] usb 1-1: config 0 interface 0 altsetting 0 has 1 endpoint descriptor, different from the interface descriptor's value: 9
[   35.241679][   T78] usb 1-1: New USB device found, idVendor=0e8f, idProduct=0012, bcdDevice= 0.00
[   35.250728][   T78] usb 1-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0
[   35.260195][   T78] usb 1-1: config 0 descriptor??
[   35.741292][   T78] greenasia 0003:0E8F:0012.0001: unknown main item tag 0x0
[   35.750434][   T78] greenasia 0003:0E8F:0012.0001: hidraw0: USB HID v0.00 Device [HID 0e8f:0012] on usb-dummy_hcd.0-1/input0
[   35.762126][   T78] ==================================================================
[   35.770276][   T78] BUG: KASAN: slab-out-of-bounds in ga_probe+0x1fd/0x6f0
[   35.777279][   T78] Write of size 8 at addr ffff8881d9acafc0 by task kworker/1:1/78
[   35.785072][   T78] 
[   35.787380][   T78] CPU: 1 PID: 78 Comm: kworker/1:1 Not tainted 5.3.0-rc7+ #0
[   35.794718][   T78] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   35.804756][   T78] Workqueue: usb_hub_wq hub_event
[   35.809765][   T78] Call Trace:
[   35.813037][   T78]  dump_stack+0xca/0x13e
[   35.817267][   T78]  ? ga_probe+0x1fd/0x6f0
[   35.821582][   T78]  ? ga_probe+0x1fd/0x6f0
[   35.825901][   T78]  print_address_description+0x6a/0x32c
[   35.831422][   T78]  ? ga_probe+0x1fd/0x6f0
[   35.835728][   T78]  ? ga_probe+0x1fd/0x6f0
[   35.840031][   T78]  __kasan_report.cold+0x1a/0x33
[   35.844954][   T78]  ? ga_probe+0x1fd/0x6f0
[   35.849276][   T78]  kasan_report+0xe/0x12
[   35.853493][   T78]  check_memory_region+0x128/0x190
[   35.858577][   T78]  ga_probe+0x1fd/0x6f0
[   35.862705][   T78]  ? hid_hw_request.constprop.0+0xa0/0xa0
[   35.868429][   T78]  hid_device_probe+0x2be/0x3f0
[   35.873275][   T78]  ? hid_match_device+0x1f0/0x1f0
[   35.878282][   T78]  really_probe+0x281/0x6d0
[   35.882764][   T78]  driver_probe_device+0x101/0x1b0
[   35.887857][   T78]  __device_attach_driver+0x