[Ksplice][Virtuozzo 4.7 Updates] New updates available via Ksplice (2.6.32-042stab084.25)

[Oracle Ksplice]

Synopsis: 2.6.32-042stab084.25 can now be patched using Ksplice

Systems running Virtuozzo 4.7 or the OpenVZ RHEL 6 kernel can now use
Ksplice to patch against the latest Parallels Virtuozzo Containers 4.7
kernel security update, 2.6.32-042stab084.25.

INSTALLING THE UPDATES

We recommend that all users of Ksplice Uptrack on Virtuozzo 4.7 or
OpenVZ on RHEL 6 install these updates.

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 action.

Alternatively, you can install these updates by running:

# /usr/sbin/uptrack-upgrade -y


DESCRIPTION

* Denial-of-service in mmap_pgoff().

A missing NULL pointer check in the mmap_pgoff() implementation could
result in a NULL pointer dereference and kernel crash.  A local,
unprivileged user could use this flaw to cause a denial-of-service.


* CPU lockup under heavy container I/O.

Incorrect locking and error handling could result in a CPU lockup when a
container performed large amounts of I/O using the ploop device.

SUPPORT

Ksplice support is available at ksplice-support_ww at oracle.com.