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Test ID:
Category:Red Hat Local Security Checks
Title:RedHat Security Advisory RHSA-2012:1150
The remote host is missing updates announced in
advisory RHSA-2012:1150.

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

This update fixes the following security issues:

* A memory leak flaw was found in the way the Linux kernel's memory
subsystem handled resource clean up in the mmap() failure path when the
MAP_HUGETLB flag was set. A local, unprivileged user could use this flaw to
cause a denial of service. (CVE-2012-2390, Moderate)

* A flaw was found in the way the Linux kernel's Event Poll (epoll)
subsystem handled resource clean up when an ELOOP error code was returned.
A local, unprivileged user could use this flaw to cause a denial of
service. (CVE-2012-3375, Moderate)

This update also fixes the following bugs:

* The MRG 2.1 realtime kernel lacked support for automatic memory
reservation for the kdump kernel, as present in Red Hat Enterprise Linux
kernels. Using the parameter crashkernel=auto on the kernel boot command
line led to kdump being disabled because no memory was correctly reserved.
Support for crashkernel=auto has been implemented in the 3.0 realtime
kernel and now when the crashkernel=auto parameter is specified, machines
with more than 4GB of RAM have the amount of memory required by the kdump
kernel calculated and reserved. (BZ#820427)

* The current bnx2x driver in the MRG 2.1 realtime kernel had faulty
support for the network adapter PCI ID 14e4:168e and did not work
correctly. The bnx2x driver was updated to include support for this network
adapter. (BZ#839037)

Users should upgrade to these updated packages, which upgrade the kernel-rt
kernel to version kernel-rt-3.0.36-rt57, and 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

Risk factor : Medium

Cross-Ref: Common Vulnerability Exposure (CVE) ID: CVE-2012-2390
Common Vulnerability Exposure (CVE) ID: CVE-2012-3375
CopyrightCopyright (c) 2012 E-Soft Inc.

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