Issued:

2013-01-23

Updated:

2013-01-23

RHBA-2013:0184 - kernel bug fix update

Synopsis

kernel bug fix update

Type/Severity

Bug Fix Advisory

Topic

Updated kernel packages that fix three bugs are now available for Red Hat Enterprise Linux 6 Extended Update Support.

Description

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

This update fixes the following bugs:

• Previously, the IP over Infiniband (IPoIB) driver maintained state information about neighbors on the network by attaching it to the core network's neighbor structure. However, due to a race condition between the freeing of the core network neighbor struct and the freeing of the IPoIB network struct, a use after free condition could happen, resulting in either a kernel oops or 4 or 8 bytes of kernel memory being zeroed when it was not supposed to be. These patches decouple the IPoIB neighbor struct from the core networking stack's neighbor struct so that there is no race between the freeing of one and the freeing of the other. (BZ#880083)

• Previously, the HP Smart Array, or hpsa, driver used target reset. However, HP Smart Array logical drives do not support target reset. Therefore, if the target reset failed, the logical drive was taken offline with a file system error. The hpsa driver has been updated to use LUN reset instead of target reset, which is supported by these drives. (BZ#884421)

• Previously, the xdr routines in NFS version 2 and 3 conditionally updated the res->count variable. Read retry attempts after a short NFS read() call could fail to update the res->count variable, resulting in truncated read data being returned. With this update, the res->count variable is updated unconditionally, thus preventing this bug. (BZ#891563)

Users should upgrade to these updated packages, which contain backported patches to fix these bugs. The system must be rebooted for this update to take effect.

Solution

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.

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

To install kernel packages manually, use "rpm -ivh [package]". Do not use "rpm -Uvh" as that will remove the running kernel binaries from your system. You may use "rpm -e" to remove old kernels after determining that the new kernel functions properly on your system.

Affected Products

Updated Packages

• python-perf-debuginfo-2.6.32-220.31.1.el6.x86_64.rpm
• kernel-debuginfo-2.6.32-220.31.1.el6.x86_64.rpm
• kernel-headers-2.6.32-220.31.1.el6.i686.rpm
• kernel-devel-2.6.32-220.31.1.el6.i686.rpm
• python-perf-2.6.32-220.31.1.el6.s390x.rpm
• kernel-debuginfo-2.6.32-220.31.1.el6.ppc64.rpm
• perf-2.6.32-220.31.1.el6.ppc64.rpm
• kernel-debuginfo-2.6.32-220.31.1.el6.s390x.rpm
• kernel-doc-2.6.32-220.31.1.el6.noarch.rpm
• kernel-firmware-2.6.32-220.31.1.el6.noarch.rpm
• kernel-headers-2.6.32-220.31.1.el6.ppc64.rpm
• kernel-debuginfo-common-s390x-2.6.32-220.31.1.el6.s390x.rpm
• kernel-debug-debuginfo-2.6.32-220.31.1.el6.x86_64.rpm
• kernel-debug-2.6.32-220.31.1.el6.s390x.rpm
• kernel-bootwrapper-2.6.32-220.31.1.el6.ppc64.rpm
• kernel-headers-2.6.32-220.31.1.el6.x86_64.rpm
• python-perf-2.6.32-220.31.1.el6.ppc64.rpm
• kernel-debug-devel-2.6.32-220.31.1.el6.s390x.rpm
• kernel-headers-2.6.32-220.31.1.el6.s390x.rpm
• perf-debuginfo-2.6.32-220.31.1.el6.ppc64.rpm
• kernel-debug-2.6.32-220.31.1.el6.x86_64.rpm
• kernel-debug-debuginfo-2.6.32-220.31.1.el6.i686.rpm
• python-perf-2.6.32-220.31.1.el6.i686.rpm
• kernel-debuginfo-common-i686-2.6.32-220.31.1.el6.i686.rpm
• python-perf-debuginfo-2.6.32-220.31.1.el6.ppc64.rpm
• perf-debuginfo-2.6.32-220.31.1.el6.x86_64.rpm
• perf-2.6.32-220.31.1.el6.x86_64.rpm
• kernel-debug-debuginfo-2.6.32-220.31.1.el6.ppc64.rpm
• kernel-debuginfo-common-ppc64-2.6.32-220.31.1.el6.ppc64.rpm
• kernel-2.6.32-220.31.1.el6.src.rpm
• kernel-2.6.32-220.31.1.el6.x86_64.rpm
• kernel-debuginfo-2.6.32-220.31.1.el6.i686.rpm
• python-perf-debuginfo-2.6.32-220.31.1.el6.s390x.rpm
• kernel-debug-2.6.32-220.31.1.el6.i686.rpm
• python-perf-2.6.32-220.31.1.el6.x86_64.rpm
• kernel-debug-devel-2.6.32-220.31.1.el6.ppc64.rpm
• kernel-2.6.32-220.31.1.el6.ppc64.rpm
• kernel-debug-2.6.32-220.31.1.el6.ppc64.rpm
• kernel-devel-2.6.32-220.31.1.el6.ppc64.rpm
• python-perf-debuginfo-2.6.32-220.31.1.el6.i686.rpm
• kernel-kdump-devel-2.6.32-220.31.1.el6.s390x.rpm
• kernel-devel-2.6.32-220.31.1.el6.s390x.rpm
• kernel-debug-devel-2.6.32-220.31.1.el6.x86_64.rpm
• perf-2.6.32-220.31.1.el6.i686.rpm
• kernel-debuginfo-common-x86_64-2.6.32-220.31.1.el6.x86_64.rpm
• kernel-2.6.32-220.31.1.el6.s390x.rpm
• perf-2.6.32-220.31.1.el6.s390x.rpm
• perf-debuginfo-2.6.32-220.31.1.el6.s390x.rpm
• kernel-kdump-2.6.32-220.31.1.el6.s390x.rpm
• kernel-kdump-debuginfo-2.6.32-220.31.1.el6.s390x.rpm
• kernel-debug-debuginfo-2.6.32-220.31.1.el6.s390x.rpm
• kernel-debug-devel-2.6.32-220.31.1.el6.i686.rpm
• perf-debuginfo-2.6.32-220.31.1.el6.i686.rpm
• kernel-devel-2.6.32-220.31.1.el6.x86_64.rpm
• kernel-2.6.32-220.31.1.el6.i686.rpm

Fixes

(none)

CVEs

(none)

References

(none)

Additional information

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