The Linux kernel 2.6.13 and other versions before 2.6.20.1 allows remote attackers to cause a denial of service (oops) via a crafted NFSACL 2 ACCESS request that triggers a free of an incorrect pointer.
https://issues.rpath.com/browse/RPL-1063
https://exchange.xforce.ibmcloud.com/vulnerabilities/32578
http://www.vupen.com/english/advisories/2007/0660
http://www.ubuntu.com/usn/usn-451-1
http://www.securityfocus.com/bid/22625
http://www.securityfocus.com/archive/1/471457
http://www.novell.com/linux/security/advisories/2007_21_kernel.html
http://www.novell.com/linux/security/advisories/2007_18_kernel.html
http://www.mandriva.com/security/advisories?name=MDKSA-2007:078
http://www.mandriva.com/security/advisories?name=MDKSA-2007:060
http://secunia.com/advisories/25691
http://secunia.com/advisories/24777
http://secunia.com/advisories/24752
http://secunia.com/advisories/24547
http://secunia.com/advisories/24482
http://secunia.com/advisories/24400
http://secunia.com/advisories/24215
http://secunia.com/advisories/24201
http://kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.20.1