Exec in Linux kernel 2.6 does not properly clear posix-timers in multi-threaded environments, which results in a resource leak and could allow a large number of multiple local users to cause a denial of service by using more posix-timers than specified by the quota for a single user.
http://www.ussg.iu.edu/hypermail/linux/kernel/0409.1/1107.html
http://www.securityfocus.com/bid/15533
http://www.securityfocus.com/advisories/9806
http://www.mandriva.com/security/advisories?name=MDKSA-2005:219
http://www.mandriva.com/security/advisories?name=MDKSA-2005:218
http://www.debian.org/security/2005/dsa-922
http://secunia.com/advisories/18056
http://secunia.com/advisories/17917
http://secunia.com/advisories/17826
http://linux.bkbits.net:8080/linux-2.6/cset%40414b332fsZQvEUsfzKJIo-q2_ZH0hg