The remote host is missing updates announced in advisory RHSA-2009:1541. The kernel packages contain the Linux kernel, the core of any Linux operating system. This update fixes the following security issues: * a NULL pointer dereference flaw was found in each of the following functions in the Linux kernel: pipe_read_open(), pipe_write_open(), and pipe_rdwr_open(). When the mutex lock is not held, the i_pipe pointer could be released by other processes before it is used to update the pipe's reader and writer counters. This could lead to a local denial of service or privilege escalation. (CVE-2009-3547, Important) Users should upgrade to these updated packages, which contain a backported patch 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

• http://rhn.redhat.com/errata/RHSA-2009-1541.html

---

Updated on 2017-03-28