The Linux kernel before 2.6.11 on the Itanium IA64 platform has certain “ptrace corner cases” that allow local users to cause a denial of service (crash) via crafted syscalls, possibly related to MCA/INIT, a different vulnerability than CVE-2005-1761.
lists.alioth.debian.org/pipermail/kernel-svn-changes/2005-August/002597.html
openvz.org/news/updates/kernel-022stab045.1-released
secunia.com/advisories/17002
www.gelato.unsw.edu.au/archives/linux-ia64/0409/11073.html
www.kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.11
www.redhat.com/support/errata/RHSA-2005-420.html
www.redhat.com/support/errata/RHSA-2005-663.html
www.vupen.com/english/advisories/2005/1878
bugzilla.redhat.com/bugzilla/show_bug.cgi?id=148862
bugzilla.redhat.com/bugzilla/show_bug.cgi?id=155283
oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A11628