[El-errata] New Ksplice updates for UEKR6 5.4.17 on OL7 and OL8 (ELSA-2022-9012)

Errata Announcements for Oracle Linux el-errata at oss.oracle.com
Thu Jan 13 08:38:45 UTC 2022

Synopsis: ELSA-2022-9012 can now be patched using Ksplice
CVEs: CVE-2021-4083 CVE-2021-4155

Users with Oracle Linux Premier Support can now use Ksplice to patch
against the latest Oracle Linux Security Advisory, ELSA-2022-9012.
More information about this errata can be found at


We recommend that all users of Ksplice Uptrack running UEKR6 5.4.17 on
OL7 and OL8 install these updates.

On systems that have "autoinstall = yes" in /etc/uptrack/uptrack.conf,
these updates will be installed automatically and you do not need to
take any action.

Alternatively, you can install these updates by running:

# /usr/sbin/uptrack-upgrade -y


* CVE-2021-4083: Race condition in garbage collection of BSD Unix domain sockets.

Possible race condition in BSD Unix domain sockets garbage collection
could result in a read-after-free error. A local user could use this
flaw to cause denial-of-service or privileges escalation.

Orabug: 33691332

* CVE-2021-4155: Data leak in XFS filesystem.

The XFS filesystem does not correctly initialize certain data blocks. This
could allow data leaks to unprivileged users.

Orabug: 33699625


Ksplice support is available at ksplice-support_ww at oracle.com.

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