RHBA-2015:2093 - Bug Fix Advisory

Topic

Updated util-linux packages that fix several bugs and add one enhancement are now available for Red Hat Enterprise Linux 7.

Description

The util-linux packages contain a large variety of low-level system utilities that are necessary for a Linux system to function. Among others, these include the fdisk configuration tool and the login program.

This update fixes the following bugs:

• The uuidd daemon was previously configured with a "timeout" option that caused uuidd to stop after 60 seconds of inactivity. When another UUID was requested from the daemon, it had to be started again first and then it would generate a new UUID, which could potentially cause problems if the request required very fast handling. With this update, the "timeout" option has been removed and the uuidd daemon runs permanently, which improves performance and makes UUID generation more robust. (BZ#1092039)
• The libblkid library previously incorrectly probed private Logical Volume Manager (LVM) devices for file systems, which caused LVM thin-provisioning pool devices to be mistakenly interpreted as mountable block devices. Attempting to mount an LVM thin-provisioning pool device consequently caused XFS metadata corruption. This update fixes the underlying code and thus prevents the described problem from occurring. (BZ#1199619)
• The libblkid library was incorrectly evaluating internal return codes from probing functions, which caused blkid to ignore some partition types such as Sun disk label. With this update, libblkid evaluates return codes correctly and blkid provides information about all valid partitions. (BZ#1251250)
• Previously, the lsblk command was providing incomplete output on systems with multipath devices if the underlying device was partitioned. With this update, lsblk provides complete output containing all multipath devices. (BZ#1208081)
• The su command was incorrectly evaluating exit statuses of its child processes. This caused it to output an incorrect messsage, "Killed (core dumped)", when a child process was killed. With this update, su prints the correct message, "Killed", when its child process is killed. (BZ#1147526)

In addition, this update adds the following enhancement:

• This update introduces the "-Z" option to the nsenter utility. You can use this option to automatically set the SELinux context of the new process to match the SELinux context of the target process, which enables use of nsenter with namespace-based containers. (BZ#1116100)

Users of util-linux 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.

For details on how to apply this update, refer to:

https://access.redhat.com/articles/11258

Affected Products

• Red Hat Enterprise Linux Server 7 x86_64
• Red Hat Enterprise Linux for x86_64 - Extended Update Support 7.7 x86_64
• Red Hat Enterprise Linux for x86_64 - Extended Update Support 7.6 x86_64
• Red Hat Enterprise Linux for x86_64 - Extended Update Support 7.5 x86_64
• Red Hat Enterprise Linux for x86_64 - Extended Update Support 7.4 x86_64
• Red Hat Enterprise Linux for x86_64 - Extended Update Support 7.3 x86_64
• Red Hat Enterprise Linux Server - AUS 7.7 x86_64
• Red Hat Enterprise Linux Server - AUS 7.6 x86_64
• Red Hat Enterprise Linux Server - AUS 7.4 x86_64
• Red Hat Enterprise Linux Server - AUS 7.3 x86_64
• Red Hat Enterprise Linux Server - Extended Life Cycle Support 7 x86_64
• Red Hat Enterprise Linux Workstation 7 x86_64
• Red Hat Enterprise Linux Desktop 7 x86_64
• Red Hat Enterprise Linux for IBM z Systems 7 s390x
• Red Hat Enterprise Linux for IBM z Systems - Extended Update Support 7.7 s390x
• Red Hat Enterprise Linux for IBM z Systems - Extended Update Support 7.6 s390x
• Red Hat Enterprise Linux for IBM z Systems - Extended Update Support 7.5 s390x
• Red Hat Enterprise Linux for IBM z Systems - Extended Update Support 7.4 s390x
• Red Hat Enterprise Linux for IBM z Systems - Extended Update Support 7.3 s390x
• Red Hat Enterprise Linux for Power, big endian 7 ppc64
• Red Hat Enterprise Linux for Power, big endian - Extended Update Support 7.7 ppc64
• Red Hat Enterprise Linux for Power, big endian - Extended Update Support 7.6 ppc64
• Red Hat Enterprise Linux for Power, big endian - Extended Update Support 7.5 ppc64
• Red Hat Enterprise Linux for Power, big endian - Extended Update Support 7.4 ppc64
• Red Hat Enterprise Linux for Power, big endian - Extended Update Support 7.3 ppc64
• Red Hat Enterprise Linux for Scientific Computing 7 x86_64
• Red Hat Enterprise Linux Server from RHUI 7 x86_64
• Red Hat Enterprise Linux for Power, little endian 7 ppc64le
• Red Hat Enterprise Linux for Power, little endian - Extended Update Support 7.7 ppc64le
• Red Hat Enterprise Linux for Power, little endian - Extended Update Support 7.6 ppc64le
• Red Hat Enterprise Linux for Power, little endian - Extended Update Support 7.5 ppc64le
• Red Hat Enterprise Linux for Power, little endian - Extended Update Support 7.4 ppc64le
• Red Hat Enterprise Linux for Power, little endian - Extended Update Support 7.3 ppc64le
• Red Hat Enterprise Linux for Power, little endian - Extended Update Support 7.2 ppc64le
• Red Hat Enterprise Linux Server - TUS 7.7 x86_64
• Red Hat Enterprise Linux Server - TUS 7.6 x86_64
• Red Hat Enterprise Linux Server - TUS 7.3 x86_64
• Red Hat Enterprise Linux Server - Extended Life Cycle Support (for IBM z Systems) 7 s390x
• Red Hat Enterprise Linux EUS Compute Node 7.7 x86_64
• Red Hat Enterprise Linux EUS Compute Node 7.6 x86_64
• Red Hat Enterprise Linux EUS Compute Node 7.5 x86_64
• Red Hat Enterprise Linux EUS Compute Node 7.4 x86_64
• Red Hat Enterprise Linux EUS Compute Node 7.3 x86_64
• Red Hat Enterprise Linux Server for Power LE - Update Services for SAP Solutions 7.7 ppc64le
• Red Hat Enterprise Linux Server for Power LE - Update Services for SAP Solutions 7.6 ppc64le
• Red Hat Enterprise Linux Server for Power LE - Update Services for SAP Solutions 7.4 ppc64le
• Red Hat Enterprise Linux Server for Power LE - Update Services for SAP Solutions 7.3 ppc64le
• Red Hat Enterprise Linux for x86_64 - Update Services for SAP Solutions 7.7 x86_64
• Red Hat Enterprise Linux for x86_64 - Update Services for SAP Solutions 7.6 x86_64
• Red Hat Enterprise Linux for x86_64 - Update Services for SAP Solutions 7.4 x86_64
• Red Hat Enterprise Linux for x86_64 - Update Services for SAP Solutions 7.3 x86_64
• Red Hat Enterprise Linux Server - Extended Life Cycle Support for IBM Power, big endian 7 ppc64
• Red Hat Enterprise Linux Server - Extended Life Cycle Support for IBM Power, little endian 7 ppc64le

Fixes

• BZ - 1131523 - mount does not appear to be correctly documented for default mount options
• BZ - 1147526 - Incorrect message printed when su is killed
• BZ - 1165702 - make login(1) insensitive to SIGXFSZ and huge lastlog
• BZ - 1184558 - logger silently changes facility from kern to user
• BZ - 1198243 - blkid does not recognize xfs external log device
• BZ - 1209594 - RHEL7: unshare: add --propagation, use MS_PRIVATE by default
• BZ - 1225053 - [RFE] backport fstrim -a and unit file
• BZ - 1225235 - blockdev --report fails on loop and pmem devices
• BZ - 1229436 - Remove patch that disables User Namespaces
• BZ - 1251250 - blkid outputs nothing for some partitions (e.g. sun label)

CVEs

(none)

References

• http://www.redhat.com/security/updates/classification/#normal