Synopsis

iproute bug fix and enhancement update

Type/Severity

Bug Fix Advisory

Topic

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

Description

The iproute packages contain networking utilities such as ip and rtmon
designed to use the advanced networking capabilities of the Linux
kernel.

This update fixes the following bugs:

• The default route was erroneously deleted after running the "ip route del"

command without further parameters. A patch has been applied, and the default
route is no longer removed in this situation. (BZ#997965)

• Running the "bridge monitor file" command opened the file, but never closed

it. A fix has been applied to close the opened file after loading its content.
As a result, the command now closes all opened files as expected. (BZ#1011817)

• Previously, the "ip -6 addrlabel" command returned an incorrect error message

that contained "inet" instead of "inet6". To fix this bug, the error message has
been changed to include "inet" for IPv4 addresses and "inet6" for IPv6
addresses. (BZ#1034049)

• Prior to this update, the iproute utility handled the return values of the

send() system call incorrectly when reading kernel responses. Consequently,
iproute could interpret successful kernel responses as failures, which caused
iproute to terminate with an error. With this update, iproute uses the return
values correctly and processes kernel responses as intended. (BZ#1040367)

• The /sbin/ip file displayed statistics for 32-bit system even on 64-bit

kernel. To fix this bug, a patch has been applied, and the statistics are now
presented correctly. (BZ#1060195)

• Prior to this update, multipath routing did not function with IPv6 addresses

and resulted in an "IP address is expected rather than "2001:470:25:94::1"
error. To fix this bug, a patch that enables adding multipath routes using IPv6
addresses has been applied. (BZ#1152951)

In addition, this update adds the following enhancements:

• Support for spoof checking configuration has been added to iproute.

(BZ#1131650)

• Dynamic precision, human readable, and IEC outputs are now backported to IP

statistics. (BZ#1177982)

Users of iproute 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.

For details on how to apply this update, refer to:

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 Server - Extended Life Cycle Support 6 i386
• 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 (for IBM z Systems) 6 s390x

Fixes

• BZ - 1011817 - bridge monitor file forgets to close a file
• BZ - 1034049 - ip -6 addrlabel return incorrect error message
• BZ - 1040367 - Unable to configure network after updating iproute to 2.6.32-31
• BZ - 1060195 - Lack of 64-Bit Counters in /sbin/ip -s link show
• BZ - 1152951 - Impossible to set up an IPv6 multipath route

CVEs

(none)

References

(none)