The tower_probe function in drivers/usb/misc/legousbtower.c in the Linux kernel before 4.8.1 allows local users (who are physically proximate for inserting a crafted USB device) to gain privileges by leveraging a write-what-where condition that occurs after a race condition and a NULL pointer dereference.
Exploitability
AV:PAC:HPR:LUI:NScope
S:UImpact
C:HI:HA:H6.3/CVSS:3.0/AV:P/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H