According to Carsten Eiram, the chief security specialist at vulnerability research firm Secunia, the flaw was introduced in the Linux kernel code in March 2011 and affects versions 2.6.39 and above. “Any Linux distributions providing these kernel versions should be vulnerable,” Eiram said.
Fedora 14 is stuck on 2.6.35 something. This shouldn’t affect CentOS builds either. Sometimes it’s beneficial not to upgrade the OS!