RHBA-2011:0734 - Bug Fix Advisory

Topic

An updated scsi-target-utils package that fixes multiple bugs and adds an
enhancement is now available.

Description

The scsi-target-utils package contains tools and a daemon used to set up
iSCSI and iSER targets.

This updated package also contains a number of bug fixes:

• Providing an existing target name to tgt-setup-lun when attempting to

add a new LUN based on a non-existent device correctly resulted in failure
because a target with the same name already existed. If the user then
followed the utility's suggestion to add the new LUN to the existing
target, the operation failed (again, correctly) because the device did
not exist. However, the roll-back action associated with this second
failure resulted in the target being removed. The roll-back action now
checks whether the target pre-existed the failed actions, so the target
is not removed in this circumstance. (BZ#676337)

• Attempting to run iscsid and the tgtd on the same machine results

in semaphore errors being logged by both daemons because of an identifier
collision. This has been corrected, and these errors no longer appear.
(BZ#677475)

This update also includes the following enhancement:

• Support for read-only target devices has been added to

scsi-target-utils. Set read-only devices with the "--params" option of
the tgtadm command, like so:

tgtadm --lld iscsi --mode logicalunit --op update --tid 1 --lun 1 --params
readonly=1

...or add "readonly 1" to the target element of your targets.conf file.
Note that "allow-in-use" must also be set if you enable read-only targets
in the targets.conf file. (BZ#616402)

All users of scsi-target-utils are advised to upgrade to this updated
package, which resolves 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
http://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 Workstation 6 x86_64
• Red Hat Enterprise Linux for Power, big endian 6 ppc64
• 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 6 i386
• Red Hat Enterprise Linux Workstation 6 i386
• 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

Fixes

• BZ - 616402 - RFE: Enforce read-only target
• BZ - 676337 - [tgt-setup-lun] - adding inaccurate LUN to existing target will remove the target itself
• BZ - 677475 - iscsid: semop down failed; tgtd: semop up failed

CVEs

(none)

References

(none)