Issued:

2012-06-20

Updated:

2012-06-20

RHBA-2012:0951 - autofs bug fix and enhancement update

Synopsis

autofs bug fix and enhancement update

Type/Severity

Bug Fix Advisory (none)

Topic

Updated autofs packages that fix several bugs and add an enhancement are now available for Red Hat Enterprise Linux 6.

Description

The autofs utility controls the operation of the automount daemon. The automount daemon automatically mounts file systems when you use them, and unmounts them when they are not busy.

This update fixes the following bugs:

• A recent change to correct a problem with included map entry removal introduced a new problem with included map key look-up. The condition used in the previous patch was too broad and the map key lookup mechanism failed to find keys in an included multi-mount map entry. The condition has been modified so that keys in multi-mount map entries are now found correctly. (BZ#772946)

• A function that checks validity of a mount location was meant to check only for a small subset of map location errors. A recent improvement modification in error reporting inverted a logic test in this validating function. Consequently, the scope of the test was widened, which caused automount to report false-positive failures. With this update, the faulty logic test has been fixed and false-positive failures no longer occur. (BZ#772356)

• Previously, autofs submounts incorrectly handled shutdown synchronization and lock restrictions. As a consequence, automount could become unresponsive when submounts expired. With this update, the submount shuts down only after passing through the state ST_SHUTDOWN, ST_SHUTDOWN_PENDING, or ST_SHUTDOWN_FORCE, or when the state changes to ST_READY. (BZ#790674)

• Prior to this update, two IPv6 compatibility functions were erroneously not included in the autofs interface to the libtirpc library. This prevented the autofs IPv6 RPC code from working. With this update, the libtirpc interface code for autofs has been fixed. (BZ#753964)

• When using the legacy auto.net script for the hosts map, an error in the script for handling multiple occurrences of exports prevented the script from returning any of the exported paths. This bug has been fixed by modifying the script to select only a unique list of exports, thus eliminating duplicate exports. (BZ#782169)

• Due to changes to the mount.nfs utility to take advantage of the support for NFS mount options in the kernel, the RPC processing had moved from mount.nfs to the kernel. However, the kernel RPC had to wait for RPC requests to servers that were not available to time out, resulting in very slow interactive response when attempting an automount to a server that was not available. This update changes the autofs RPC code to detect this situation early and provide proper error messages as soon as possible. (BZ#787595)

• Previously, although the /net/ and /misc/ directories are exclusively used by the default /etc/auto.master utility, they were not specified in the autofs RPM package. As a result, the rpm utility reported them as not owned by any package. This update adds both these directories to the autofs spec file. (BZ#760945)

• Previously, the autofs init.d script failed to return proper usage messages if called with no arguments, or incorrect arguments. This bug has been fixed and the script now prints the usage information as expected. (BZ#745527)

This update adds the following enhancement:

• Initial support for the System Security Services Daemon (SSSD) as a map source has been added to the autofs package. (BZ#683523)

All autofs users are advised to upgrade to these updated packages, which fix these bugs and add this enhancement.

Solution

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

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/knowledge/articles/11258

Affected Products

Updated Packages

• autofs-5.0.5-54.el6.x86_64.rpm
• autofs-5.0.5-54.el6.s390x.rpm
• autofs-debuginfo-5.0.5-54.el6.s390x.rpm
• autofs-5.0.5-54.el6.ppc64.rpm
• autofs-debuginfo-5.0.5-54.el6.i686.rpm
• autofs-5.0.5-54.el6.src.rpm
• autofs-debuginfo-5.0.5-54.el6.x86_64.rpm
• autofs-debuginfo-5.0.5-54.el6.ppc64.rpm
• autofs-5.0.5-54.el6.i686.rpm

Fixes

• This content is not included.BZ - 782169

CVEs

(none)

References

(none)

Additional information

• The Red Hat security contact is This content is not included.secalert@redhat.com. More contact details at https://access.redhat.com/security/team/contact/.
• Offline Security Data data is available for integration with other systems. See Offline Security Data API to get started.