(RHSA-2011:1418) Moderate: kernel security update

The kernel packages contain the Linux kernel, the core of any Linux
operating system.

This update fixes the following security issue:

• A flaw was found in the Linux kernel’s clock implementation on 32-bit,
  SMP (symmetric multiprocessing) systems. A local, unprivileged user could
  use this flaw to cause a divide error fault, resulting in a denial of
  service. (CVE-2011-3209, Moderate)

Red Hat would like to thank Yasuaki Ishimatsu for reporting this issue.

Users should upgrade to these updated packages, which contain a backported
patch to correct this issue. The system must be rebooted for this update to
take effect.