[El-errata] ELSA-2012-2013 Moderate: Oracle Linux 6 Unbreakable Enterprise kernel security update

[Errata Announcements for Oracle Linux]

Oracle Linux Security Advisory ELSA-2012-2013

The following updated rpms for Oracle Linux 6 have been uploaded to the 
Unbreakable Linux Network:

i386:
kernel-uek-2.6.39-100.7.1.el6uek.i686.rpm
kernel-uek-debug-2.6.39-100.7.1.el6uek.i686.rpm
kernel-uek-debug-devel-2.6.39-100.7.1.el6uek.i686.rpm
kernel-uek-devel-2.6.39-100.7.1.el6uek.i686.rpm
kernel-uek-doc-2.6.39-100.7.1.el6uek.noarch.rpm
kernel-uek-firmware-2.6.39-100.7.1.el6uek.noarch.rpm

x86_64:
kernel-uek-firmware-2.6.39-100.7.1.el6uek.noarch.rpm
kernel-uek-doc-2.6.39-100.7.1.el6uek.noarch.rpm
kernel-uek-2.6.39-100.7.1.el6uek.x86_64.rpm
kernel-uek-devel-2.6.39-100.7.1.el6uek.x86_64.rpm
kernel-uek-debug-devel-2.6.39-100.7.1.el6uek.x86_64.rpm
kernel-uek-debug-2.6.39-100.7.1.el6uek.x86_64.rpm


SRPMS:
http://oss.oracle.com/ol6/SRPMS-updates/kernel-uek-2.6.39-100.7.1.el6uek.src.rpm


Users with Oracle Linux Premier Support can now use Ksplice to patch
against this Security Advisory.

We recommend that all users of  Oracle Linux 5 install these updates.

Users of Ksplice Uptrack can install these updates by running :

# /usr/sbin/uptrack-upgrade -y
On systems that have "autoinstall = yes" in /etc/uptrack/uptrack.conf,
these updates will be installed automatically and you do not need to
take any additional action.

Description of changes:

* CVE-2011-4086: Denial of service in journaling block device.

The journal block device assumed that a buffer marked as unwritten
or delay could be live without checking if the buffer was mapped.

An unprivileged local user could use this flaw to crash the system.


* CVE-2012-1601: Denial of service in KVM VCPU creation.

Inconsistent state in the creation of KVM virtual CPU's could
lead to NULL pointer dereferences. A unprivileged local user
could use this flaw to crash the system.


[2.6.39-100.7.1.el6uek]
- KVM: Ensure all vcpus are consistent with in-kernel irqchip settings (Avi
   Kivity) [Bugdb: 13871] {CVE-2012-1601}
- jbd2: clear BH_Delay & BH_Unwritten in journal_unmap_buffer (Eric Sandeen)
   [Bugdb: 13871] {CVE-2011-4086}