[security-announce] Security Update: linux-hierofalcon 3.1 &, linux-hierofalcon 4.1: CVE-2016-2546

Sona Sarmadi sona.sarmadi at enea.com
Thu Apr 7 09:15:12 CEST 2016


		Enea Linux Security Advisory

=========================================================
Product/package: kernel (linux-hierofalcon 3.19 /
linux-hierofalcon 4.1) /Enea Linux 5.0
Severity: Medium
CVE Name: CVE-2016-2546
Layer: meta-hierofalcon
=========================================================

This update fixes an open race in ALSA timer ioctls. This flaw may
lead to a use-after-free of timer instance object.

Description
===========
ALSA timer ioctls have an open race and this may lead to a
use-after-free of timer instance object. A simplistic fix is to
make each ioctl exclusive.

References:
===========
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2016-2546
http://seclists.org/oss-sec/2016/q1/133

Reference to the upstream fixes:
===============================
https://git.kernel.org/cgit/linux/kernel/git/stable/linux-stable.git/
patch/?id=ac905ca58370789645e813d8abfa5871c93e9e36

Correction for Enea Linux
=========================
http://git.enea.com/cgit/linux/meta-hierofalcon.git/patch/?id=95e2d54d188fa653d9075782a3e431925829c297

How to get the latest patches
=============================
- If you have already cloned needed repositories, update it to get new
security atches.

cd Enea-Linux-5.0/poky/meta-hierofalcon
git pull

- If you have not yet cloned needed repositories, do it as described
below. (Security patches are fetched implicitly when cloning the repos).

mkdir Enea-Linux-5.0
git -C Enea-Linux-5.0 clone -b dizzy git://git.enea.com/linux/poky.git
POKY=Enea-Linux-5.0/poky
git -C $POKY clone -b dizzy git://git.enea.com/linux/meta-enea.git
git -C $POKY clone -b dizzy git://git.enea.com/linux/meta-fsl-ppc.git
git -C $POKY clone -b dizzy git://git.enea.com/linux/
meta-hierofalcon.git
git -C $POKY clone -b dizzy git://git.enea.com/linux/meta-linaro.git
git -C $POKY clone -b dizzy git://git.enea.com/linux/
meta-openembedded.git
git -C $POKY clone -b dizzy
git://git.enea.com/linux/meta-virtualization.git
git -C $POKY/meta-enea clone -b dizzy
git://git.enea.com/linux/meta-enea/meta-vt.git

If you have any questions regarding the security patches and security
updates please contact security at enea.com.

Enea Security Team
Sona Sarmadi
Mobile: +46 70 971 4475
www.enea.com

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