RHBA-2014:0828 - Bug Fix Advisory

Topic

Updated nfs-utils packages that fix one bug 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 bug:

• Previously, the rpc.idmapd name mapping daemon returned the following warning

message after failing to open communication with a client mount:

dirscancb: open(/var/lib/nfs/rpc_pipefs/nfs/clnt6a): No such file or
directory

As this warning message was harmless and unnecessary, with this update,
rpc.idmapd displays the message only if the user passes the "--verbose" option
on the command line. (BZ#1083006)

In addition, this update adds the following enhancement:

• The nfs-utils packages were moved to an in-kernel key ring to store the ID

mappings needed for NFSv4. However, the kernel key is too small for large
enterprise environments. With this update, the nfsidmap command, used by the
kernel to do ID mapping, has been changed to use multiple key rings.
(BZ#1079871)

Users of nfs-utils are advised to upgrade to these updated packages, which fix
this bug 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.

Affected Products

• Red Hat Enterprise Linux Server 6 x86_64
• Red Hat Enterprise Linux Server 6 i386
• Red Hat Enterprise Linux for x86_64 - Extended Update Support 6.5 x86_64
• Red Hat Enterprise Linux for x86_64 - Extended Update Support 6.5 i386
• Red Hat Enterprise Linux Server - AUS 6.5 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 IBM z Systems - Extended Update Support 6.5 s390x
• Red Hat Enterprise Linux for Power, big endian 6 ppc64
• Red Hat Enterprise Linux for Power, big endian - Extended Update Support 6.5 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 Update Support from RHUI 6.5 x86_64
• Red Hat Enterprise Linux Server - Extended Update Support from RHUI 6.5 i386
• Red Hat Enterprise Linux Server - Extended Life Cycle Support 6 x86_64
• Red Hat Enterprise Linux EUS Compute Node 6.5 x86_64
• Red Hat Enterprise Linux Server - TUS 6.5 x86_64
• Red Hat Enterprise Linux Server - Extended Life Cycle Support (for IBM z Systems) 6 s390x

Fixes

• BZ - 1079871 - Updating to nfs-utils-1.2.3-39.el6 causes rpcidmapd to be chkconfig deleted
• BZ - 1106352 - RHEL 6.5 nfs-utils-1.2.3 sends RPCSEC_GSS_DESTROY with no verifier right after context creation

CVEs

(none)

References

(none)