[El-errata] New Ksplice updates for RHCK 8 (ELSA-2021-2570)

Errata Announcements for Oracle Linux el-errata at oss.oracle.com
Tue Jul 6 13:23:53 PDT 2021

Synopsis: ELSA-2021-2570 can now be patched using Ksplice
CVEs: CVE-2020-26541 CVE-2021-33034

Users with Oracle Linux Premier Support can now use Ksplice to patch
against the latest Oracle Linux Security Advisory, ELSA-2021-2570.
More information about this errata can be found at


We recommend that all users of Ksplice Uptrack running RHCK 8 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


* Note: Oracle will not be providing an update for CVE-2020-26541.

This CVE is only applicable at boot time, so by the time Ksplice live updates
are applied, the relevant code has already ran.

Orabug: 31961118

* CVE-2021-33034: Use-after-free when tearing down bluetooth HCI channel.

A race condition in the bluetooth Host Controller Interface code could
result in a use-after-free. A malicious device might exploit this to
write data to an arbitrary kernel address, potentially allowing code
execution under control of the device.


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

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