The IATA (ata) driver in FreeBSD 6.0 and 8.0, when read access to /dev is available, allows local users to cause a denial of service (kernel panic) via a certain IOCTL request with a large count, which triggers a malloc call with a large value.Referenceshttp://www.securitytracker.com/id?1022538https://www.exploit-db.com/exploits/9134http://www.securityfocus.com/bid/35645
