El-errata: New Ksplice updates for UEKR6 5.4.17 on OL7 and OL8 (ELBA-2022-9093)
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
https://linux.oracle.com/errata/ELBA-2022-9093.html
INSTALLING THE UPDATES
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
DESCRIPTION
* 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
SUPPORT
Ksplice support is available at ksplice-support_ww@oracle.com.
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New Ksplice updates for UEKR6 5.4.17 on Oracle Linux 7 and 8.
