RHBA-2014:1475 - Bug Fix Advisory

Topic

Updated netcf packages that fix several bugs and add various enhancements are
now available for Red Hat Enterprise Linux 6.

Description

The netcf packages contain a library for modifying the network configuration of
a system. Network configuration is expressed in a platform-independent XML
format, which the netcf library translates into changes to the system's "native"
network configuration files.

The netcf package has been upgraded to upstream version 0.2.4, which provides a
number of bug fixes and enhancements over the previous version. This includes a
change ensuring that an interface with unplugged cable is not considered to be
active. (BZ#851748)

This update also fixes the following bugs:

• The libvirtd service could terminate unexpectedly when retrieving a MAC

address. This happened because the netcf code contained uninitialized data that
could be accessed by libvirtd. With this update, netcf properly initializes this
data and libvirtd no longer crashes in this case. (BZ#879055)

• Previously, netcf added an additional set of quotes to the value of the

BONDING_OPTS parameter while attempting to create a bond interface.
Consequently, the attempt failed with an error similar to the following:

Error creating interface: 'Could not create interface: internal error failed to
create (start) interface bond0: failed to execute external program - Running
'ifup bond0' failed with exit code 1: ./network-functions: line 457:
/sys/class/net/bond0/bonding/'mode: No such file or directory

With this update, additional quotes are no longer added to BONDING_OPTS and
bonding devices can now be created as expected with this parameter specified.
(BZ#1052156)

Users of netcf are advised to upgrade to these updated packages, which fix these
bugs and add these enhancements.

Solution

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

Note that after the update has been applied, the libvirtd service must be
restarted before it will begin using the updated netcf library. This can be done
with the following command:

service libvirtd restart

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/articles/11258

Affected Products

• Red Hat Enterprise Linux Server 6 x86_64
• Red Hat Enterprise Linux Server 6 i386
• Red Hat Enterprise Linux Server - Extended Life Cycle Support 6 x86_64
• Red Hat Enterprise Linux Workstation 6 x86_64
• Red Hat Enterprise Linux Workstation 6 i386
• Red Hat Enterprise Linux Desktop 6 x86_64
• Red Hat Enterprise Linux Desktop 6 i386
• Red Hat Enterprise Linux for IBM z Systems 6 s390x
• Red Hat Enterprise Linux for Power, big endian 6 ppc64
• Red Hat Enterprise Linux for Scientific Computing 6 x86_64
• Red Hat Enterprise Linux Server from RHUI 6 x86_64
• Red Hat Enterprise Linux Server from RHUI 6 i386
• Red Hat Enterprise Linux Server - Extended Life Cycle Support 6 i386
• Red Hat Enterprise Linux Server - Extended Life Cycle Support (for IBM z Systems) 6 s390x
• Red Hat Enterprise Linux Server - Extended Life Cycle Support Extension 6 x86_64
• Red Hat Enterprise Linux Server - Extended Life Cycle Support Extension 6 i386
• Red Hat Enterprise Linux Server - Extended Life Cycle Support Extension (for IBM z Systems) 6 s390x

Fixes

• BZ - 851748 - rebase netcf for RHEL6.6
• BZ - 879055 - Error due to extraneous quotes in BONDING_OPTS when creating a bonding interface

CVEs

(none)

References

(none)