RHBA-2011:1736 - Bug Fix Advisory

Topic

Updated xfsprogs packages that fix two bugs are now available.

Description

xfsprogs contains a set of commands to use the XFS filesystem, including
mkfs.xfs.

This update fixes the following bugs:

• xfs_quota is the xfsprogs utility for managing XFS file system quotas.

When "xfs_quota" was run on an XFS file system which had user quotas
enabled but no enabled group quotas, it generated "XFS_GETQUOTA: No such
process" errors. That is, xfs_quota was asking for and attempting to report
on quotas which were not there. This update corrects this behavior.
xfs_quota no longer tries to report on quotas that are not present and,
consequently, the error above no longer presents. (BZ#679154)

• xfs_repair is the xfsprogs utility for repairing XFS file systems.

Previously, when "xfs_repair -n" (the "-n" switch puts xfs_repair into
"report-only, do not modify" mode) was run on an XFS filesystem, a check
for whether a particular called pointer -- agno -- was within the file
system was not done. In some circumstances (for example, if the file system
had corrupted directory entries) this could cause the utility to read
uninitialized memory, resulting in a segfault. As of this update
"xfs_mount" is specifically passed to affected functions and agno is
checked to ensure it is inside the XFS file system. Consequently, the
uninitialized memory reads and resultant segfaults no longer occur.
(BZ#694706)

All XFS users should upgrade to these updated packages, which resolve these
issues.

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/kb/docs/DOC-11259

Affected Products

• Red Hat Enterprise Linux Scalable File System (for RHEL Server) 6 x86_64
• Red Hat Enterprise Linux Scalable File System (for RHEL Workstation) 6 x86_64
• Red Hat Enterprise Linux Scalable File System (for RHEL Server) from RHUI 6 x86_64

Fixes

• BZ - 679154 - xfs_quota generates "XFS_GETQUOTA: No such process" errors
• BZ - 694706 - [xfsprogs] xfs_repair -n segfault on corrupted image

CVEs

(none)

References

(none)