Netfilter in the Linux kernel 2.6.8.1 allows local users to cause a denial of service (memory consumption) via certain packet fragments that are reassembled twice, which causes a data structure to be allocated twice.
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A10275
http://www.vupen.com/english/advisories/2005/1878
http://www.securityfocus.com/bid/12816
http://www.novell.com/linux/security/advisories/2005_18_kernel.html
http://www.mandriva.com/security/advisories?name=MDKSA-2005:219
http://www.mandriva.com/security/advisories?name=MDKSA-2005:218
http://secunia.com/advisories/17826
http://secunia.com/advisories/17002
http://secunia.com/advisories/14295
http://rhn.redhat.com/errata/RHSA-2005-663.html
http://rhn.redhat.com/errata/RHSA-2005-366.html
http://marc.info/?l=bugtraq&m=111091402626556&w=2
http://distro.conectiva.com.br/atualizacoes/?id=a&anuncio=000945