FreeBSD atkbd SETFKEY Ioctl Privilege Escalation Exploit

Incorrect signedness comparison in the ioctl handler of the atkbd keyboard driver in the FreeBSD kernel can be leveraged by a local unprivileged user to overwrite a portion of the kernel memory, thus allowing the attacker to gain root privileges on the affected system.
Exploit type: 
Vulnerabilty ID: 
Product Version: 
Released Date: 
Thursday, June 9, 2016 - 19:00