The mmap extension __MAP_NOFAULT in OpenBSD 5.8 and 5.9 allows attackers to cause a denial of service (kernel panic and crash) via a large size value.Referenceshttp://www.securitytracker.com/id/1036318http://www.openbsd.org/errata59.htmlhttp://www.openwall.com/lists/oss-security/2016/07/14/5http://www.openwall.com/lists/oss-security/2016/07/17/7http://www.openbsd.org/errata58.htmlhttp://www.securityfocus.com/bid/91805
