RHBA-2011:1095 - Bug Fix Advisory

Topic

Updated dump packages that fix three bugs are now available for Red Hat
Enterprise Linux 6.

Description

The dump package contains both "dump" and "restore" commands. The "dump" command
examines files in a file system, determines which ones need to be backed up, and
copies those files to a specified disk, tape, or other storage medium. The
"restore" command performs the inverse function of "dump"; it can restore a full
backup of a file system. Subsequent incremental backups can then be layered on
top of the full backup. Single files and directory subtrees may also be restored
from full or partial backups.

This update fixes the following bugs:

• Prior to this update, the dump utility passed wrong arguments to the

"clone(2)" system call. As a result, dump became unresponsive when executed on
the S/390 or IBM System z architecture. This bug has been fixed in this update
so that dump now passes correct arguments and no longer hangs. (BZ#702593)

• Under certain circumstances, the dump utility could have failed to detect

holes in files correctly. When a user attempted to restore an erroneous backup
using the "restore" command, an error message "Missing blocks at end of [path],
assuming hole" could have been displayed. In such case, the backup could have
not been restored properly. This bug has been fixed in this update so that dump
now handles holes in files as expected. (BZ#691434)

• Prior to this update, the "dump -w" command did not recognize ext4 file

systems as supported. With this update, the bug has been fixed so that "dump -w"
now recognizes the ext4 file systems as supported. (BZ#658890)

All users of dump should upgrade to these updated packages, which fix these
bugs.

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 Server 6 x86_64
• Red Hat Enterprise Linux Server 6 i386
• 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 6 x86_64
• Red Hat Enterprise Linux Server - Extended Life Cycle Support (for IBM z Systems) 6 s390x
• Red Hat Enterprise Linux Server - Extended Life Cycle Support Extension 6 x86_64
• Red Hat Enterprise Linux Server - Extended Life Cycle Support Extension 6 i386
• Red Hat Enterprise Linux Server - Extended Life Cycle Support Extension (for IBM z Systems) 6 s390x

Fixes

• BZ - 658890 - dump -w does not work on ext4 fielsystems
• BZ - 691434 - Dump fails to dump some files with leading zeros

CVEs

(none)

References

(none)