Memory leak in the ip6_input_finish function in ip6_input.c in Linux kernel 2.6.12 and earlier might allow attackers to cause a denial of service via malformed IPv6 packets with unspecified parameter problems, which prevents the SKB from being freed.
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A9396
http://www.securityfocus.com/bid/16043
http://www.redhat.com/support/errata/RHSA-2006-0140.html
http://www.redhat.com/support/errata/RHSA-2006-0101.html
http://www.debian.org/security/2006/dsa-1018
http://www.debian.org/security/2006/dsa-1017
http://secunia.com/advisories/19374
http://secunia.com/advisories/19369
http://secunia.com/advisories/19038
http://secunia.com/advisories/18562
http://secunia.com/advisories/18510
http://secunia.com/advisories/18203
http://marc.info/?l=linux-kernel&m=112533899509033&w=2
http://marc.info/?l=linux-kernel&m=112508479120081&w=2
http://lists.suse.de/archive/suse-security-announce/2006-Feb/0010.html