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Red Hat Product Errata RHBA-2013:0348 - Bug Fix Advisory
Issued:
2013-02-20
Updated:
2013-02-20

RHBA-2013:0348 - Bug Fix Advisory

  • Overview
  • Updated Packages

Synopsis

microcode_ctl bug fix and enhancement update

Type/Severity

Bug Fix Advisory

Red Hat Insights patch analysis

Identify and remediate systems affected by this advisory.

View affected systems

Topic

Updated microcode_ctl packages that fix a bug and add various enhancements are
now available for Red Hat Enterprise Linux 6.

Description

The microcode_ctl packages provide utility code and microcode data to assist the
kernel in updating the CPU microcode at system boot time. This microcode
supports all current x86-based, Intel 64-based, and AMD64-based CPU models. It
takes advantage of the mechanism built-in to Linux that allows microcode to be
updated after system boot. When loaded, the updated microcode corrects the
behavior of various processors, as described in processor specification updates
issued by Intel and AMD for those processors.

This update fixes the following bug:

  • Previously, a udev rule in /lib/udev/rules.d/89-microcode.rules allowed the

module to load more than once. On very large systems (for example, systems with
2048 or more CPUs), this could result in the system becoming unresponsive on
boot. With this update, the udev rule has been changed to ensure the module
loads only once. Very large systems now boot as expected. (BZ#740932)

This update also adds the following enhancements:

  • The Intel CPU microcode file has been updated to version 20120606. (BZ#818096)
  • The AMD CPU microcode file has been updated to version 20120910. (BZ#867078)

All users of microcode_ctl are advised to upgrade to these updated packages,
which fix this bug and add these enhancements. Note: a system reboot is
necessary for this update to take effect.

Solution

Before applying this update, make sure all previously-released errata
relevant to your system have been applied.

This update is available via the Red Hat Network. Details on how to
use the Red Hat Network to apply this update are available at
https://access.redhat.com/knowledge/articles/11258

Affected Products

  • Red Hat Enterprise Linux Server 6 x86_64
  • Red Hat Enterprise Linux Server 6 i386
  • Red Hat Enterprise Linux Server - Extended Life Cycle Support 6 i386
  • Red Hat Enterprise Linux Workstation 6 i386
  • Red Hat Enterprise Linux Desktop 6 x86_64
  • Red Hat Enterprise Linux Desktop 6 i386
  • Red Hat Enterprise Linux for Scientific Computing 6 x86_64
  • Red Hat Enterprise Linux Server from RHUI 6 x86_64
  • Red Hat Enterprise Linux Server from RHUI 6 i386
  • Red Hat Enterprise Linux Server - Extended Life Cycle Support 6 x86_64
  • Red Hat Enterprise Linux Workstation 6 x86_64

Fixes

  • BZ - 867078 - RHEL 6.4:Please include AMD microcode for processor families 10h-14h(microcode_amd.bin) and 15h(microcode_amd_fam15h.bin)

CVEs

(none)

References

(none)

Note: More recent versions of these packages may be available. Click a package name for more details.

Red Hat Enterprise Linux Server 6

SRPM
microcode_ctl-1.17-14.el6.src.rpm SHA-256: 4f3fd0abbb06678d753b4dc8955e5bd7970e9cb2bb88be8b8d442f15fd0fc21f
x86_64
microcode_ctl-1.17-14.el6.x86_64.rpm SHA-256: 337bcb88e511e6453c2c42b0718c43fc0baf8aa7d58407bc1010af5248ebe433
microcode_ctl-debuginfo-1.17-14.el6.x86_64.rpm SHA-256: bdb579e2353aa5b0aa7bca6adae4cd69fcba3d226ebcc10d3318290e8b8f0180
i386
microcode_ctl-1.17-14.el6.i686.rpm SHA-256: 5ae2f095a22aa8f7a18e473a7b4130b05295df692e4b05ad0f38e78bd481c114
microcode_ctl-debuginfo-1.17-14.el6.i686.rpm SHA-256: 89434694fc1f2f1584920444c829afee308e61cc9c4eafd6acdb07925b752cb4

Red Hat Enterprise Linux Server - Extended Life Cycle Support 6

SRPM
microcode_ctl-1.17-14.el6.src.rpm SHA-256: 4f3fd0abbb06678d753b4dc8955e5bd7970e9cb2bb88be8b8d442f15fd0fc21f
i386
microcode_ctl-1.17-14.el6.i686.rpm SHA-256: 5ae2f095a22aa8f7a18e473a7b4130b05295df692e4b05ad0f38e78bd481c114
microcode_ctl-debuginfo-1.17-14.el6.i686.rpm SHA-256: 89434694fc1f2f1584920444c829afee308e61cc9c4eafd6acdb07925b752cb4
x86_64
microcode_ctl-1.17-14.el6.x86_64.rpm SHA-256: 337bcb88e511e6453c2c42b0718c43fc0baf8aa7d58407bc1010af5248ebe433
microcode_ctl-debuginfo-1.17-14.el6.x86_64.rpm SHA-256: bdb579e2353aa5b0aa7bca6adae4cd69fcba3d226ebcc10d3318290e8b8f0180

Red Hat Enterprise Linux Workstation 6

SRPM
microcode_ctl-1.17-14.el6.src.rpm SHA-256: 4f3fd0abbb06678d753b4dc8955e5bd7970e9cb2bb88be8b8d442f15fd0fc21f
x86_64
microcode_ctl-1.17-14.el6.x86_64.rpm SHA-256: 337bcb88e511e6453c2c42b0718c43fc0baf8aa7d58407bc1010af5248ebe433
microcode_ctl-debuginfo-1.17-14.el6.x86_64.rpm SHA-256: bdb579e2353aa5b0aa7bca6adae4cd69fcba3d226ebcc10d3318290e8b8f0180
i386
microcode_ctl-1.17-14.el6.i686.rpm SHA-256: 5ae2f095a22aa8f7a18e473a7b4130b05295df692e4b05ad0f38e78bd481c114
microcode_ctl-debuginfo-1.17-14.el6.i686.rpm SHA-256: 89434694fc1f2f1584920444c829afee308e61cc9c4eafd6acdb07925b752cb4

Red Hat Enterprise Linux Desktop 6

SRPM
microcode_ctl-1.17-14.el6.src.rpm SHA-256: 4f3fd0abbb06678d753b4dc8955e5bd7970e9cb2bb88be8b8d442f15fd0fc21f
x86_64
microcode_ctl-1.17-14.el6.x86_64.rpm SHA-256: 337bcb88e511e6453c2c42b0718c43fc0baf8aa7d58407bc1010af5248ebe433
microcode_ctl-debuginfo-1.17-14.el6.x86_64.rpm SHA-256: bdb579e2353aa5b0aa7bca6adae4cd69fcba3d226ebcc10d3318290e8b8f0180
i386
microcode_ctl-1.17-14.el6.i686.rpm SHA-256: 5ae2f095a22aa8f7a18e473a7b4130b05295df692e4b05ad0f38e78bd481c114
microcode_ctl-debuginfo-1.17-14.el6.i686.rpm SHA-256: 89434694fc1f2f1584920444c829afee308e61cc9c4eafd6acdb07925b752cb4

Red Hat Enterprise Linux for Scientific Computing 6

SRPM
microcode_ctl-1.17-14.el6.src.rpm SHA-256: 4f3fd0abbb06678d753b4dc8955e5bd7970e9cb2bb88be8b8d442f15fd0fc21f
x86_64
microcode_ctl-1.17-14.el6.x86_64.rpm SHA-256: 337bcb88e511e6453c2c42b0718c43fc0baf8aa7d58407bc1010af5248ebe433
microcode_ctl-debuginfo-1.17-14.el6.x86_64.rpm SHA-256: bdb579e2353aa5b0aa7bca6adae4cd69fcba3d226ebcc10d3318290e8b8f0180

Red Hat Enterprise Linux Server from RHUI 6

SRPM
microcode_ctl-1.17-14.el6.src.rpm SHA-256: 4f3fd0abbb06678d753b4dc8955e5bd7970e9cb2bb88be8b8d442f15fd0fc21f
x86_64
microcode_ctl-1.17-14.el6.x86_64.rpm SHA-256: 337bcb88e511e6453c2c42b0718c43fc0baf8aa7d58407bc1010af5248ebe433
microcode_ctl-debuginfo-1.17-14.el6.x86_64.rpm SHA-256: bdb579e2353aa5b0aa7bca6adae4cd69fcba3d226ebcc10d3318290e8b8f0180
i386
microcode_ctl-1.17-14.el6.i686.rpm SHA-256: 5ae2f095a22aa8f7a18e473a7b4130b05295df692e4b05ad0f38e78bd481c114
microcode_ctl-debuginfo-1.17-14.el6.i686.rpm SHA-256: 89434694fc1f2f1584920444c829afee308e61cc9c4eafd6acdb07925b752cb4

The Red Hat security contact is secalert@redhat.com. More contact details at https://access.redhat.com/security/team/contact/.

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