RHBA-2015:1342 - Bug Fix Advisory

Topic

Updated nfs-utils packages that fix several bugs and add one enhancement are now
available for Red Hat Enterprise Linux 6.

Description

The nfs-utils packages provide a daemon for the kernel Network File System (NFS)
server and related tools, which provides better performance than the traditional
Linux NFS server used by most users. These packages also contain the mount.nfs,
umount.nfs, and showmount programs.

This update fixes the following bugs:

• Previously, the mountstats tool incorrectly parsed arguments that ended with

the slash character (/). Consequently, the mountstats command failed when the
directory name included a slash at the end. This bug has been fixed, and the
mountstats command no longer fails in this scenario. (BZ#1007281)

• The rpc.mountd daemon contained memory leaks, which caused rpc.mountd to use

an excessive amount of memory and an undue number of CPU cycles. With this
update, several memory leaks identified by the Valgrind tool have been plugged,
and the described problem no longer occurs. (BZ#1194802)

• Previously, when the "mount -o remount" command was used and the mount failed,

no error message was displayed. With this update, a relevant error message is
displayed in this scenario. (BZ#1026446)

• The rpc.mountd daemon did not correctly parse IP-restricted submount exports.

As a consequence, some exports were not accessible when they should have been.
This bug has been fixed, and exports are now accessible when appropriate.
(BZ#1164317)

In addition, this update adds the following enhancement:

• The mountstats tool has been updated to include the latest upstream features

and improve performance. Several new options have been introduced ("--file" or
"-f", "--since" or "-S", "--raw" or "-R"), output of the iostat and nfsstat
commands has been improved, and relevant manual pages have been updated.
(BZ#1172827)

Users of nfs-utils are advised to upgrade to these updated packages, which fix
these bugs and add this enhancement. After installing this update, the nfs
service will be restarted automatically.

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 - 1007281 - mountstats command could not process the argument /mountpoint/
• BZ - 1078829 - Automatic condrestart upon package upgrade breaks exports from Veritas cluster
• BZ - 1152554 - typo in manpage
• BZ - 1202700 - mount.nfs permission denied on IPv6 address with mount option "user" in configure file "/etc/fstab"
• BZ - 1203133 - exportfs -r always output garbage log: exportfs: scandir /etc/exports.d: No such file or directory
• BZ - 1216156 - Failure to renew Kerberos credentials while running with uid=0

CVEs

(none)

References

(none)