RHBA-2008:0668 - Bug Fix Advisory

Topic

An updated iproute package that fixes several bugs is now available.

Description

The iproute package contains networking utilities, such as ip and rtmon,
which use the advanced networking capabilities of the Linux 2.4 and 2.6
kernels.

This updated package fixes the following bugs:

• due to an incorrect definition in "linux/ip.h", it was not possible to

create a tunnel on certain big-endian architectures. Attempting to create
a tunnel using the "ip tunnel" command failed with a "ioctl: Invalid
argument" error.

• on the Intel(R) 64 and AMD64 architectures, the "ip -s link" command

returned incorrect output. The statistics from the "ip -s link" command
were inconsistent with the statistics from commands such as "ifconfig -a",
and "netstat -i". In this updated package, statics are gathered from
"rtnl_link_stats" instead of "net_device_stats", which resolves this issue.

• support for the tunable TCP_RTO_MIN kernel network option has been added.

This allows users to configure the transmission time, for example, 3000
milliseconds. In the previous iproute package, this value was hard-coded,
which may have caused problems with applications aligning correctly with
data traffic. As well, in certain situations, using the "ip route" command
with the "rto_min" option, may have caused a 'Error: either "to" is
duplicate, or "rto_min" is a garbage.' or "RTNETLINK answers: Invalid
argument" error.

Users of iproute are advised to upgrade to this updated package, which
resolves these issues.

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
http://kbase.redhat.com/faq/FAQ_58_10188

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

• BZ - 171679 - 'ip tunnel add sit1 mode sit' fails -EINVAL.

CVEs

(none)

References

(none)