Comment 0 for bug 1402551

Hello,

since the Xorg/nvidia security updates last week, I encounter a problem with growing Xorg and kwin memory usage.
In one hour the memory consumption is at Xorg ~ 270 MiB and at kwin: 300 MB , so the system responds slowly and scrolling is very slow in in dolphin, kwrite, firefox, etc.
After several hours the system is so slow, that only a restart helps, and then the growing of memory starts again.

*** My Tests;

I tried several nvidia drivers, but without success (from: https://launchpad.net/~xorg-edgers/+archive/ubuntu/ppa/+index?field.series_filter=precise)

304.125-0ubuntu0.0.1~xedgers12.04.1
331.113-0ubuntu0.0.1~xedgers12.04.1
346.22-0ubuntu1~xedgers12.04.1
(With purging each nvidia driver and fresh installing it)

*** My configuration;

Two Kubuntu 12.04.5 PCs with a nvidia card;
nvidia driver 331.113-0ubuntu0.0.0.3 and 304.125-0ubuntu0.0.0.1
One pc with the Trusty Xstack (HWE) with Trusty kernel (3.13.0-43.72~precise1) and the other one with the stock kernel (3.2.0-74-generic #109) and stock xstack.

I use one pc in my office, so it disturbs my work because of the slowness and restarts.

Thank you for your help!

Best regards, Bernhard

*** Problematic packages and other Xorg deps

nvidia-graphics-drivers-331 (331.113-0ubuntu0.0.0.3) precise-security; urgency=medium

  [ Alberto Milone ]
  * debian/substvars:
    - Add support for video ABIs up to 19.
  * debian/templates/dkms_nvidia.conf.in:
    - Drop all the patches.
  * SECURITY UPDATE:
    - CVE-2014-8091, CVE-2014-8098, CVE-2014-8298 (LP: #1400673).
 -- Alberto Milone <email address hidden> Tue, 09 Dec 2014 12:10:46 +0100

CVE-2014-8298 RESERVED
CVE-2014-8098 out of bounds access in GLX extension
CVE-2014-8091 denial of service due to unchecked malloc in client authentication

nvidia-graphics-drivers-304-updates (304.125-0ubuntu0.0.0.1)

xorg-server-lts-trusty (2:1.15.1-0ubuntu2~precise4) precise-security; urgency=medium

  * SECURITY UPDATE: Dec 2014 security issues - additional fixes
    - debian/patches/CVE-2014-8xxx/003[4567]*.patch: add additional
      fixes not included in original pre-advisory bundle.
 -- Marc Deslauriers <email address hidden> Tue, 09 Dec 2014 17:25:15 -0500

xorg-server-lts-trusty (2:1.15.1-0ubuntu2~precise3) precise-security; urgency=medium

  * SECURITY UPDATE: Dec 2014 protocol handling security issues
    - debian/patches/CVE-2014-8xxx/*.patch: patches from upstream to fix
      a multitude of security issues, including a couple of pre-requisite
      fixes from git.
    - CVE-2014-8091
    - CVE-2014-8092
    - CVE-2014-8093
    - CVE-2014-8094
    - CVE-2014-8095
    - CVE-2014-8096
    - CVE-2014-8097
    - CVE-2014-8098
    - CVE-2014-8099
    - CVE-2014-8100
    - CVE-2014-8101
    - CVE-2014-8102
    - CVE-2014-8103
 -- Marc Deslauriers <email address hidden> Sat, 06 Dec 2014 10:28:55 -0500

CVE-2014-8091 denial of service due to unchecked malloc in client authentication
CVE-2014-8092 intger overflows in X11 core protocol requests
CVE-2014-8093 integer overflows in GLX extension
CVE-2014-8094 integer overflows in DRI2 extensions
CVE-2014-8095 out of bounds access in XInput extensions
CVE-2014-8096 out of bounds access in XC-MISC extension
CVE-2014-8097 out of bounds access in DBE extension
CVE-2014-8098 out of bounds access in GLX extension
CVE-2014-8099 out of bounds access in XVideo extension
CVE-2014-8100 out of bounds access in Render extension
CVE-2014-8101 out of bounds access in RandR extension
CVE-2014-8102 out of bounds access in XFixes extension
CVE-2014-8103 out of bounds access in DRI3 & Present extensions

and other Xorg deps