RHBA-2012:0473 - Bug Fix Advisory

Topic

An updated rsync package that fixes two bugs is now available for Red Hat
Enterprise Linux 6.

Description

The rsync tool is used to copy and synchronize files locally or across a
network. The rsync works very fast because it uses delta encoding and sends only
differences in files instead of whole files. The rsync is also used as a
powerful mirroring tool.

This update fixes the following bugs:

• When creating a sparse file that was zero blocks long, the "rsync --sparse"

command did not properly truncate the sparse file at the end of the copy
transaction. As a consequence, the file size was bigger than expected. With this
update, the underlying source code has been modified to ensure proper truncating
of such files. (BZ#737539)

• Previously, the rsync utility could terminate unexpectedly with the following

error during a data transfer:

Inflate (token) returned -5

This happened if the block size was exactly of the size of the CHUNK_SIZE
constant. The output buffer was completely filled after calling the inflate()
function for the first time, and it was therefore not possible to obtain
remaining buffer output when calling inflate() the next time. The Z_BUF_ERROR
constant is now handled properly, and so prevents rsync from terminating in the
described scenario. (BZ#804916)

All users of rsync are advised to upgrade to this updated package, which fixes
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 - 737539 - rsync --sparse does not properly copy sparse files

CVEs

(none)

References

(none)