IOAcceleratorFamily in Apple iOS before 9.3.3 and watchOS before 2.2.2 allows local users to obtain sensitive information from kernel memory or cause a denial of service (out-of-bounds read) via unspecified vectors.
https://support.apple.com/HT206904
https://support.apple.com/HT206902
http://www.securitytracker.com/id/1036344
http://www.securityfocus.com/bid/91832
http://lists.apple.com/archives/security-announce/2016/Jul/msg00002.html
http://lists.apple.com/archives/security-announce/2016/Jul/msg00001.html