RHBA-2015:1252 - Bug Fix Advisory

Topic

Updated libvirt packages that fix several bugs are now available for Red Hat Enterprise Linux 6.

Description

The libvirt library is a C API for managing and interacting with the virtualization capabilities of Linux and other operating systems.

This update fixes the following bugs:

• Previously, when the default CPU mask was specified while using Non-Uniform Memory Access (NUMA) pinning, virtual CPUs (vCPUs) could not be pinned to physical CPUs that were not contained in the default node mask. With this update, the control groups (cgroups) code correctly attaches only vCPU threads instead of the entire domain group, and using NUMA pinning with the default cpuset subsystem now works as expected. (BZ#1198096)
• The interface configuration of any libvirt domain which was of type='network' and referenced an "unmanaged" libvirt network had incorrect XML data for the interface transmitted during a migration, containing the "status" of the interface instead of the name of the network to use ("configuration"). As a consequence, the migration destination tried to set up the domain network interface using the status information from the source of the migration, and the migration thus failed. With this update, libvirt sends the configuration data for each device during migration rather than the status data, and the migration of a domain using interfaces of type='network' now succeeds. (BZ#1186142)
• In Red Hat Enterprise Linux 6.6, support was added for libvirt to report whether QEMU is capable of creating snapshots. However, libvirt did not probe for the snapshot capability properly. As a consequence, the snapshot capability of KVM Guest Image in VDSM was reported as unavailable even when it was available, and creating a disk snapshot in some cases failed. With this update, libvirt no longer reports QEMU snapshot capability, and therefore does not cause the described problem. (BZ#1149667)
• Previously, using the "virsh pool-refresh" command, or restarting or refreshing the libvirtd service after renaming a virtual storage volume in some cases caused the "virsh vol-list" to display an incorrect name for the renamed storage volume. This update adds a check for the resulting name, which returns an error if the storage volume name is incorrect. (BZ#1138523)
• Prior to this update, when using the "virsh save" command to save a domain to an NFS client with the "root squash" access rights reduction while running the libvirtd service with a non-default owner:group configuration, saving the NFS client failed with a "Transport endpoint is not connected" error message. This update ensures that the chmod operation during the saving process correctly specifies the non-default owner:group configuration, and using "virsh save" in the described scenario works as expected. (BZ#1158036)
• A virtual function (VF) could not be used in the macvtap-passthrough network if it was previously used in the hostdev network. With this update, libvirt ensures that the VF's MAC address is properly adjusted for the macvtap-passthrough network, which allows the VF to be used properly in the described scenario. (BZ#1113474)

Users of libvirt are advised to upgrade to these updated packages, which fix these bugs. After installing the updated packages, libvirtd will be restarted automatically.

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 6 x86_64
• Red Hat Enterprise Linux Server 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 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 (for IBM z Systems) 6 s390x

Fixes

• BZ - 834196 - Domain restore fails from a saved state in a file with xml option.
• BZ - 1113474 - The VF is failed to be used in macvtap-passthrough network if it has been used in hostdev network
• BZ - 1115292 - QoS settings should not be applied to bridged/macvtap/hostdev network via portgroup
• BZ - 1115858 - libvirt should prevent duplicate portgroup name in virtual network
• BZ - 1122367 - guest with agent can't start in user mode
• BZ - 1124854 - Libvirt should report error when try to revert guest to external system checkpoint snapshot
• BZ - 1125194 - virsh mishandles inactive configuration on device hot(un)plug commands
• BZ - 1126487 - virsh and perl-Sys-Virt unable to update active running device interface
• BZ - 1131821 - Libvirtd crash while set blkdeviotune with the hotplug disk and specify the --config option
• BZ - 1134455 - pkg-config --libs contains cflags
• BZ - 1134671 - migrate command --xml option will report error:can't find xml when guest have 15 NIC or more
• BZ - 1135171 - quiet mode can't work for command domiflist and domiflist
• BZ - 1136251 - The running guest will change to crash status after restart libvirtd service
• BZ - 1136788 - libvirtd segfault while starting a guest with <on_lockfailure> as ignore
• BZ - 1138488 - one of guest will be shut off when restart libvirtd while disable the default security labeling
• BZ - 1138500 - guest will be shutoff after libvirtd is restarted when selinux security driver is disabled and didn't enable the model='selinux' in guest's xml
• BZ - 1138523 - The name and format of volume in disk pool are changed after pool refreshed
• BZ - 1144304 - memory leak when starting a domain with cpu mode='host-model'
• BZ - 1146310 - guest interface which use existing bridge source bridge will disappear after libvirtd restart
• BZ - 1149667 - libvirt misreport live snapshot capability
• BZ - 1158036 - Fail to save guest to the pre-create save file which locate in root_squash nfs server
• BZ - 1162759 - Double sgabios ROM appears if you have -nographic and <bios useserial='yes'/>
• BZ - 1169405 - Rebooted VMs get restarted again when libvirt restarts
• BZ - 1170495 - ignore emulatorpin when vcpu placement is auto
• BZ - 1171521 - Unable to use SASL PLAIN authentication mech
• BZ - 1186142 - Fail to Migrate with Bridged network, eth + macvtap ,with different interface name on two hosts
• BZ - 1189414 - Errors in /var/log/messages and /var/log/sanlock.log when successful live migration of RHEV.
• BZ - 1198096 - changing the pinning with virsh setvcpupin does not work
• BZ - 1198497 - virsh numatune does not move the already allocated memory
• BZ - 1200991 - Create directory for lease files if it's missing (i.e. if no net is autostarted)
• BZ - 1202703 - Libvirt will crash with segfault if you try to set non-existing nwfilter to network interface for live guest
• BZ - 1203542 - Migration failed if disk missing in target host with startupPolicy='optional' on rhel6.7
• BZ - 1203633 - blkdeviotune shows values for different drives
• BZ - 1205042 - libvirt can not detach a nwfilter from a live domain
• BZ - 1206066 - virt-xml-validate failed to validate domain xml with nwfilter parameter in <interface>
• BZ - 1210183 - Libvirt report incorrect message when starting domain with nwfilter whose chain priority is greater than its filter rule priority

CVEs

(none)

References

(none)