RedHat Security Advisory RHSA-2009:1455

The remote host is missing updates to the kernel announced in advisory RHSA-2009:1455. Security fix: * a NULL pointer dereference flaw was found in the Multiple Devices (md) driver in the Linux kernel. If the suspend_lo or suspend_hi file on the sysfs file system (/sys/) is modified when the disk array is inactive, it could lead to a local denial of service or privilege escalation. Note: By default, only the root user can write to the files mentioned above. (CVE-2009-2849, Moderate) For details on other bug fixes applied to this update, please visit the referenced security advisories. Users should upgrade to these updated packages, which contain backported patches to correct these issues. The system must be rebooted for this update to take effect.
Please note that this update is available via Red Hat Network. To use Red Hat Network, launch the Red Hat Update Agent with the following command: up2date