[El-errata] New Ksplice updates for UEKR6 5.4.17 on OL7 and OL8 (ELBA-2022-9093)

Errata Announcements for Oracle Linux el-errata at oss.oracle.com
Wed Feb 2 15:45:00 UTC 2022

Synopsis: ELBA-2022-9093 can now be patched using Ksplice
CVEs: CVE-2021-4034

Users with Oracle Linux Premier Support can now use Ksplice to patch
against the latest Oracle Linux Bug Fix Advisory, ELBA-2022-9093.
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-2021-4034: Privilege escalation in pkexec.

Incorrect input validation in the pkexec program (part of Polkit) allows
any local user to become root.

* Delays in realtime scheduling or network traffic handling tasks.

IRQ work was not handled promptly and inadvertently skipped in
flush_smp_call_function_queue() function when no remote SMP calls were
scheduled. This could manifest itself with delays for time-sensitive
tasks such as realtime scheduling or network traffic handling. This was
fixed now by always processing IRQ work.

Orabug: 33770816


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

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