The kernel packages contain the Linux kernel, the core of any Linux
operating system.
The security impact of this issue was discovered by Mateusz Guzik of
Red Hat.
This update also fixes the following bugs:
A rare race between the file system unmount code and the file system
notification code could lead to a kernel panic. With this update, a series
of patches has been applied to the kernel to prevent this problem.
(BZ#1130628)
Previously, recovery of a double-degraded RAID6 array could, under
certain circumstances, result in data corruption. This could happen because
the md driver was using an optimization that is safe to use only for
single-degraded arrays. This update ensures that this optimization is
skipped during the recovery of double-degraded RAID6 arrays. (BZ#1131410)
Later Intel CPUs added a new “Condition Changed” bit to the
MSR_CORE_PERF_GLOBAL_STATUS register. Previously, the kernel falsely
assumed that this bit indicates a performance interrupt, which prevented
other NMI handlers from running and executing. To fix this problem, a
patch has been applied to the kernel to ignore this bit in the perf code,
enabling other NMI handlers to run. (BZ#1134695)
Previously, certain network device drivers did not accept ethtool
commands right after they were mounted. As a consequence, the current
setting of the specified device driver was not applied and an error message
was returned. The ETHTOOL_DELAY variable has been added, which makes sure
the ethtool utility waits for some time before it tries to apply the
options settings, thus fixing the bug. (BZ#1138300)
All kernel users are advised to upgrade to these updated packages, which
contain backported patches to correct these issues. The system must be
rebooted for this update to take effect.
OS | Version | Architecture | Package | Version | Filename |
---|---|---|---|---|---|
RedHat | 6 | ppc64 | python-perf | < 2.6.32-358.49.1.el6 | python-perf-2.6.32-358.49.1.el6.ppc64.rpm |
RedHat | 6 | x86_64 | kernel-debug | < 2.6.32-358.49.1.el6 | kernel-debug-2.6.32-358.49.1.el6.x86_64.rpm |
RedHat | 6 | x86_64 | kernel-debug-debuginfo | < 2.6.32-358.49.1.el6 | kernel-debug-debuginfo-2.6.32-358.49.1.el6.x86_64.rpm |
RedHat | 6 | i686 | python-perf | < 2.6.32-358.49.1.el6 | python-perf-2.6.32-358.49.1.el6.i686.rpm |
RedHat | 6 | s390x | kernel-debug-debuginfo | < 2.6.32-358.49.1.el6 | kernel-debug-debuginfo-2.6.32-358.49.1.el6.s390x.rpm |
RedHat | 6 | x86_64 | kernel-debuginfo | < 2.6.32-358.49.1.el6 | kernel-debuginfo-2.6.32-358.49.1.el6.x86_64.rpm |
RedHat | 6 | s390x | kernel-debuginfo | < 2.6.32-358.49.1.el6 | kernel-debuginfo-2.6.32-358.49.1.el6.s390x.rpm |
RedHat | 6 | s390x | python-perf | < 2.6.32-358.49.1.el6 | python-perf-2.6.32-358.49.1.el6.s390x.rpm |
RedHat | 6 | i686 | kernel-headers | < 2.6.32-358.49.1.el6 | kernel-headers-2.6.32-358.49.1.el6.i686.rpm |
RedHat | 6 | i686 | kernel-debug | < 2.6.32-358.49.1.el6 | kernel-debug-2.6.32-358.49.1.el6.i686.rpm |