The kernel in Red Hat Linux 6.2 and 7 is vulnerable to a local denial of service attack.
The Linux kernel handles the basic functions of the operating system. A vulnerability in the Linux kernel has been discovered in which a non-root user can cause the machine to freeze. This kernel addresses the vulnerability. Note: This bug is specific to the x86 architecture kernels only, and does not affect other architectures. All users of Red Hat Linux 6.2 and 7 should upgrade to these errata packages, which are not vulnerable to this issue. Thanks go to Christopher Devine for reporting the vulnerability on bugtraq, and Petr Vandrovec for being the first to supply a fix to the community.