4.335. util-linux-ng

Security Fixes

CVE-2011-1675, CVE-2011-1677

Multiple flaws were found in the way the mount and umount commands performed mtab (mounted file systems table) file updates. A local, unprivileged user allowed to mount or unmount file systems could use these flaws to corrupt the mtab file and create a stale lock file, preventing other users from mounting and unmounting file systems.

BZ#675999

Due to a hard coded limit of 128 devices, an attempt to run the "blkid -c" command on more than 128 devices caused blkid to terminate unexpectedly. This update increases the maximum number of devices to 8192 so that blkid no longer crashes in this scenario.

BZ#679741

Previously, the "swapon -a" command did not detect device-mapper devices that were already in use. This update corrects the swapon utility to detect such devices as expected.

BZ#684203

Prior to this update, the presence of an invalid line in the /etc/fstab file could cause the umount utility to terminate unexpectedly with a segmentation fault. This update applies a patch that corrects this error so that umount now correctly reports invalid lines and no longer crashes.

BZ#696959

Previously, an attempt to use the wipefs utility on a partitioned device caused the utility to terminate unexpectedly with an error. This update adapts wipefs to only display a warning message in this situation.

BZ#712158

When providing information on interprocess communication (IPC) facilities, the ipcs utility could previously display a process owner as a negative number if the user's UID was too large. This update adapts the underlying source code to make sure the UID values are now displayed correctly.

BZ#712808

In the installation scriptlets, the uuidd package uses the chkconfig utility to enable and disable the uuidd service. Previously, this package did not depend on the chkconfig package, which could lead to errors during installation if chkconfig was not installed. This update adds chkconfig to the list of dependencies so that such errors no longer occur.

BZ#716995

The previous version of the /etc/udev/rules.d/60-raw.rules file contained a statement that both this file and raw devices are deprecated. This is no longer true and the Red Hat Enterprise Linux kernel supports this functionality. With this update, the aforementioned file no longer contains this incorrect statement.

BZ#723352

Previously, an attempt to use the cfdisk utility to read the default Red Hat Enterprise Linux 6 partition layout failed with an error. This update corrects this error and the cfdisk utility can now read the default partition layout as expected.

BZ#679831

The previous version of the tailf(1) manual page incorrectly stated that users can use the "--lines=NUMBER" command line option to limit the number of displayed lines. However, the tailf utility does not allow the use of the equals sign (=) between the option and its argument. This update corrects this error.

BZ#694648

The fstab(5) manual page has been updated to clarify that empty lines in the /etc/fstab configuration file are ignored.

BZ#692119

A new fstrim utility has been added to the package. This utility allows the root user to discard unused blocks on a mounted file system.

BZ#696731

The login utility has been updated to provide support for failed login attempts that are reported by PAM.

BZ#723638

The lsblk utility has been updated to provide additional information about the topology and status of block devices.

BZ#726092

The agetty utility has been updated to pass the hostname to the login utility.