- Issued:
- 2012-02-20
- Updated:
- 2012-02-20
RHBA-2012:0189 - Bug Fix Advisory
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.
Topic
An updated microcode_ctl package that fixes two bugs and adds one enhancement is
now available for Red Hat Enterprise Linux 5.
Description
The microcode_ctl package provides microcode updates for Intel and AMD
processors.
This update fixes the following bugs:
- A previous update introduced a memory leak when loading the updated microcode
into memory before conversion of the microcode into a format suitable for the
CPU. This update includes a corrected patch that de-allocates the memory
correctly, ensuring memory does not leak. (BZ#690414)
- Previously, the command line definitions from the spec file specified an
incorrect path (/etc/firmware/microcode.dat) to the microcode firmware. As a
consequence, updating microcode_ctl failed with the following error message:
microcode_ctl: cannot open source file '/lib/firmware/microcode.dat'
This update modifies the firmware path to the correct
/lib/firmware/microcode.dat, and microcode_ctl now updates correctly.
(BZ#760323)
In addition, this update adds the following enhancement:
- The Intel CPU microcode file has been updated to version 20111110. This is the
most recent version of the microcode available from Intel. (BZ#713653)
Note that the system must be rebooted in order for these changes to take effect.
All users of microcode_ctl are advised to upgrade to this updated package, which
fixes these bugs and adds this enhancement.
Solution
Before applying this update, make sure that all previously-released errata
relevant to your system have been applied.
This update is available via Red Hat Network. Details on how to use the Red Hat
Network to apply this update are available at
https://access.redhat.com/kb/docs/DOC-11259
Affected Products
- Red Hat Enterprise Linux Server 5 x86_64
- Red Hat Enterprise Linux Server 5 i386
- Red Hat Enterprise Linux Workstation 5 x86_64
- Red Hat Enterprise Linux Workstation 5 i386
- Red Hat Enterprise Linux Desktop 5 x86_64
- Red Hat Enterprise Linux Desktop 5 i386
- Red Hat Enterprise Linux Server from RHUI 5 x86_64
- Red Hat Enterprise Linux Server from RHUI 5 i386
Fixes
- BZ - 690414 - memory leak in microcode_ctl.patch
CVEs
(none)
References
(none)
Red Hat Enterprise Linux Server 5
SRPM | |
---|---|
microcode_ctl-1.17-1.56.el5.src.rpm | SHA-256: a4260a119e1cb7d62cc139c0cee42a07e1dd0fa539731aafaeec9d1169054de5 |
x86_64 | |
microcode_ctl-1.17-1.56.el5.x86_64.rpm | SHA-256: 9fc71799611bac4ae5201b8eff4249ac7f9a00b31a6cefa7b0831d5ac9ceb434 |
i386 | |
microcode_ctl-1.17-1.56.el5.i386.rpm | SHA-256: 05e125e82b70bfab4282076ad83d08e3995a29ed89fe7718e088f68204221dc9 |
Red Hat Enterprise Linux Workstation 5
SRPM | |
---|---|
microcode_ctl-1.17-1.56.el5.src.rpm | SHA-256: a4260a119e1cb7d62cc139c0cee42a07e1dd0fa539731aafaeec9d1169054de5 |
x86_64 | |
microcode_ctl-1.17-1.56.el5.x86_64.rpm | SHA-256: 9fc71799611bac4ae5201b8eff4249ac7f9a00b31a6cefa7b0831d5ac9ceb434 |
i386 | |
microcode_ctl-1.17-1.56.el5.i386.rpm | SHA-256: 05e125e82b70bfab4282076ad83d08e3995a29ed89fe7718e088f68204221dc9 |
Red Hat Enterprise Linux Desktop 5
SRPM | |
---|---|
microcode_ctl-1.17-1.56.el5.src.rpm | SHA-256: a4260a119e1cb7d62cc139c0cee42a07e1dd0fa539731aafaeec9d1169054de5 |
x86_64 | |
microcode_ctl-1.17-1.56.el5.x86_64.rpm | SHA-256: 9fc71799611bac4ae5201b8eff4249ac7f9a00b31a6cefa7b0831d5ac9ceb434 |
i386 | |
microcode_ctl-1.17-1.56.el5.i386.rpm | SHA-256: 05e125e82b70bfab4282076ad83d08e3995a29ed89fe7718e088f68204221dc9 |
Red Hat Enterprise Linux Server from RHUI 5
SRPM | |
---|---|
microcode_ctl-1.17-1.56.el5.src.rpm | SHA-256: a4260a119e1cb7d62cc139c0cee42a07e1dd0fa539731aafaeec9d1169054de5 |
x86_64 | |
microcode_ctl-1.17-1.56.el5.x86_64.rpm | SHA-256: 9fc71799611bac4ae5201b8eff4249ac7f9a00b31a6cefa7b0831d5ac9ceb434 |
i386 | |
microcode_ctl-1.17-1.56.el5.i386.rpm | SHA-256: 05e125e82b70bfab4282076ad83d08e3995a29ed89fe7718e088f68204221dc9 |
The Red Hat security contact is secalert@redhat.com. More contact details at https://access.redhat.com/security/team/contact/.