RHBA-2011:1390 - Bug Fix Advisory

Topic

An updated udev package that fixes one bug is now available for Red Hat
Enterprise Linux 4.

Description

The udev package implements a dynamic device directory providing only the
devices present on the system. This dynamic directory runs in user space,
dynamically creates and removes devices, provides consistent naming and a
user-space API. udev replaces devfs in order to provide greater hot plug
functionality.

This updated udev package fixes the following bug:

• The udevd event-managing daemon incorrectly called the exit() function inside

signal handlers. Because exit() is not signal-safe, udevd could have become
unresponsive after calling the function inside a signal handler. This update
ensures that exit() is only called outside of signal handlers instead of
directly, with the result that udevd no longer potentially hangs when the
described scenario occurs. (BZ#723301)

All users of udev are advised to upgrade to this updated package, which resolves
this issue.

Solution

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

This update is available via the 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 4 x86_64
• Red Hat Enterprise Linux Server 4 ia64
• Red Hat Enterprise Linux Server 4 i386
• Red Hat Enterprise Linux Workstation 4 x86_64
• Red Hat Enterprise Linux Workstation 4 ia64
• Red Hat Enterprise Linux Workstation 4 i386
• Red Hat Enterprise Linux Desktop 4 x86_64
• Red Hat Enterprise Linux Desktop 4 i386
• Red Hat Enterprise Linux for IBM z Systems 4 s390x
• Red Hat Enterprise Linux for IBM z Systems 4 s390
• Red Hat Enterprise Linux for Power, big endian 4 ppc

Fixes

CVEs

(none)

References

(none)