[Ksplice-Fedora-20-updates] New updates available via Ksplice (FEDORA-2015-1856)

[Oracle Ksplice]

Synopsis: FEDORA-2015-1856 can now be patched using Ksplice

Systems running Fedora 20 can now use Ksplice to patch against the
latest Fedora kernel update, FEDORA-2015-1856.

INSTALLING THE UPDATES

We recommend that all users of Ksplice Uptrack on Fedora 20 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

* Use-after-free in UDF data preallocation.

Incorrect reference counting in the UDF filesystem driver can cause a
use-after-free condition and kernel panic when attempting to write to a
UDF filesystem.


* Resource leak in when unmapping Rados Block Device filesystem.

Incorrect reference counting in the Rados Block Device (RBD) filesystem
driver can cause a resource leak when unmapping a filesystem that has
been cloned.


* Deadlock in NFS when performing direct IO to regular file.

Direct IO is only supported on NFS mounts when writing to a swapfile. An
attempt to perform direct IO on a regular file will trigger a deadlock
and kernel panic.


* Kernel panic in NFSv4 client state recovery.

Attempting state recovery on an partially initialised NFSv4 client can
trigger memory corruption and a kernel panic.


* Kernel panic in Multiple Device (RAID and LVM) metadata cache.

The metadata cache used by the Multiple Device (MD) driver uses an
invalid pointer when an error occurs triggering a kernel panic.

SUPPORT

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