RHBA-2011:0456 - Bug Fix Advisory

Topic

Updated xorg-X11-server packages that fix three bugs are now available for Red
Hat Enterprise Linux 5.

Description

X.Org is an open source implementation of the X Window System. It provides the
basic low-level functionality that full-fledged graphical user interfaces are
designed upon.

This update fixes the following bugs:

• Prior to this update, running the X.Org server with the support for backing

store enabled (the "backingstore" option) caused the server to occasionally
terminate with a segmentation fault. With this update, the underlying source
code has been modified to address this issue, and enabling the "backingstore"
option in the server's configuration no longer leads to unexpected crashes.
(BZ#690270)

• When running the X.Org server with the "r500" video driver, an attempt to use

the system-config-display utility to enable dual head mode with the "Desktop
layout" option set to "Individual Desktops" could render a user unable to move
the mouse pointer between the screens. This update corrects this error, and the
use of the "Individual Desktops" option no longer confines the mouse pointer to
a single screen. (BZ#694728)

• Due to an error in the X.Org server, a user may have been occasionally unable

to move the mouse pointer outside the area near the left edge of the screen.
With this update, a patch has been applied to correct this error, and users are
now always allowed to move the mouse pointer around the screen as expected.
(BZ#695252)

All users of xorg-x11-server are advised to upgrade to these updated packages,
which fix these bugs.

Solution

Before applying this update, make sure that all previously-released errata
relevant to your system have been applied.

This update is available via Red Hat Network. Details on how to use the Red
Hat Network to apply this update are available at
https://access.redhat.com/kb/docs/DOC-11259

Affected Products

• Red Hat Enterprise Linux Server 5 x86_64
• Red Hat Enterprise Linux Server 5 ia64
• Red Hat Enterprise Linux Server 5 i386
• Red Hat Enterprise Linux for x86_64 - Extended Update Support 5.6 x86_64
• Red Hat Enterprise Linux for x86_64 - Extended Update Support 5.6 ia64
• Red Hat Enterprise Linux for x86_64 - Extended Update Support 5.6 i386
• Red Hat Enterprise Linux Server - AUS 5.6 x86_64
• Red Hat Enterprise Linux Server - AUS 5.6 ia64
• Red Hat Enterprise Linux Server - AUS 5.6 i386
• Red Hat Enterprise Linux Workstation 5 x86_64
• Red Hat Enterprise Linux Workstation 5 i386
• Red Hat Enterprise Linux Desktop 5 x86_64
• Red Hat Enterprise Linux Desktop 5 i386
• Red Hat Enterprise Linux for IBM z Systems 5 s390x
• Red Hat Enterprise Linux for IBM z Systems - Extended Update Support 5.6 s390x
• Red Hat Enterprise Linux for Power, big endian 5 ppc
• Red Hat Enterprise Linux for Power, big endian - Extended Update Support 5.6 ppc
• Red Hat Enterprise Linux Server from RHUI 5 x86_64
• Red Hat Enterprise Linux Server from RHUI 5 i386
• Red Hat Enterprise Linux Server - Extended Update Support from RHUI 5.6 x86_64
• Red Hat Enterprise Linux Server - Extended Update Support from RHUI 5.6 i386

Fixes

• BZ - 690270 - Xserver segfaults in miwindow.c when backing store is enabled
• BZ - 694728 - Pointer confined to one monitor with r500 in zaphod mode
• BZ - 695252 - [RHEL5] HP DC5850: mice get stuck on left edge (X11 acceleration overflow?)

CVEs

(none)

References

(none)