RHBA-2021:4359 - Bug Fix Advisory

Topic

An update for kmod-kvdo is now available for Red Hat Enterprise Linux 8.

Description

For detailed information on changes in this release, see the Red Hat
Enterprise Linux 8.5 Release Notes linked from the References section.

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 for x86_64 8 x86_64
• Red Hat Enterprise Linux for IBM z Systems 8 s390x
• Red Hat Enterprise Linux for Power, little endian 8 ppc64le
• Red Hat Enterprise Linux for ARM 64 8 aarch64

Fixes

• BZ - 1886738 - High number of context switches caused by VDO kernel threads while vdo volume is unused or idle
• BZ - 1927938 - There is an inconsequential (to date) 1 byte buffer overflow in vdo user tools.
• BZ - 1928284 - There needs to be a tool to convert a VDO volume to LVMVDO
• BZ - 1939279 - Latest kmod-kvdo does not work with latest RHEL-8.5.0 kernel
• BZ - 1944087 - [RFE] print warning when multiple "--device=" options are used to create vdo device
• BZ - 1949163 - [RFE] Python-based VDO Manager is deprecated
• BZ - 1952105 - [RHEL8/Bug] vdo creates directory /run/lock/vdo world writable without sticky bit triggered (found by SCAP)
• BZ - 1965516 - Converted LVM VDO with sparse index loses dedupe advice.
• BZ - 1965546 - Unecessary data stored in index layout
• BZ - 1966818 - Converted LVM VDO eventually loses its deduplication index.
• BZ - 1966824 - Converted LVM VDO sometimes won't rebuild properly after a crash
• BZ - 1966827 - VDO's UDS index code can be improved in various ways
• BZ - 1975546 - Converted LVM VDO may suffer index loss if saved at the wrong time.
• BZ - 1982878 - Coverity Issues Found
• BZ - 1988167 - Simplify on-disk format for converted LVM VDO volumes.
• BZ - 1990180 - UDS index may continue to write data after suspending

CVEs

(none)

References

• https://access.redhat.com/documentation/en-us/red_hat_enterprise_linux/8/html/8.5_release_notes/index