Race condition in the (1) add_key, (2) request_key, and (3) keyctl functions in Linux kernel 2.6.x allows local users to cause a denial of service (crash) or read sensitive kernel memory by modifying the length of a string argument between the time that the kernel calculates the length and when it copies the data into kernel memory.
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A9566
https://exchange.xforce.ibmcloud.com/vulnerabilities/25354
http://www.securityfocus.com/bid/17084
http://www.redhat.com/support/errata/RHSA-2006-0575.html
http://www.novell.com/linux/security/advisories/2006-05-31.html
http://www.mandriva.com/security/advisories?name=MDKSA-2006:059
http://support.avaya.com/elmodocs2/security/ASA-2006-200.htm
http://secunia.com/advisories/22417
http://secunia.com/advisories/21465