From https://secunia.com/advisories/49737/ : Description A vulnerability has been reported in the Linux Kernel, which can be exploited by malicious, local users to cause a DoS (Denial of Service). The vulnerability is caused due to an error when handling epoll descriptor return values and can be exploited to cause a high CPU consumption. Solution Fixed in the GIT repository. Provided and/or discovered by Yurij M. Plotnikov Changelog Further details available in Customer Area Original Advisory https://lkml.org/lkml/2012/3/27/65
There are no longer any 2.x or <3.2.24 kernels available in the repository with the exception of sys-kernel/xbox-sources which is unsupported by security.
