The die_if_kernel function in arch/ia64/kernel/unaligned.c in Linux kernel 2.6.x before 2.6.15.6, possibly when compiled with certain versions of gcc, has the "noreturn" attribute set, which allows local users to cause a denial of service by causing user faults on Itanium systems.
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A10742
https://exchange.xforce.ibmcloud.com/vulnerabilities/25068
http://www.vupen.com/english/advisories/2006/2554
http://www.vupen.com/english/advisories/2006/0856
http://www.securityfocus.com/bid/16993
http://www.redhat.com/support/errata/RHSA-2006-0575.html
http://www.redhat.com/support/errata/RHSA-2006-0437.html
http://www.novell.com/linux/security/advisories/2006-05-31.html
http://www.mandriva.com/security/advisories?name=MDKSA-2006:059
http://www.kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.15.6
http://www.debian.org/security/2006/dsa-1103
http://www.debian.org/security/2006/dsa-1097
http://support.avaya.com/elmodocs2/security/ASA-2006-200.htm
http://support.avaya.com/elmodocs2/security/ASA-2006-180.htm
http://secunia.com/advisories/22417
http://secunia.com/advisories/21983
http://secunia.com/advisories/21465
http://secunia.com/advisories/21136
http://secunia.com/advisories/20914
http://secunia.com/advisories/20671
http://secunia.com/advisories/20398
http://secunia.com/advisories/19607