[El-errata] New Ksplice updates for UEKR6 5.4.17 on OL7 and OL8 (ELSA-2021-9457)

Errata Announcements for Oracle Linux el-errata at oss.oracle.com
Wed Sep 29 03:10:48 PDT 2021

Synopsis: ELSA-2021-9457 can now be patched using Ksplice
CVEs: CVE-2021-3739

Users with Oracle Linux Premier Support can now use Ksplice to patch
against the latest Oracle Linux Security Advisory, ELSA-2021-9457.
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-2021-3739: Denial-of-service in BTRFS when removing a non-existing
device ID.

A NULL pointer dereference in BTRFS could happen when removing
a non-existing device ID and lead to a system crash. A local user with
CAP_SYS_ADMIN privileges could use this flaw for a denial-of-service.

Orabug: 33281078


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

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