RHSA-2021:0763 — Security Advisory
Red Hat Security Advisory: kpatch-patch security update
Severity
ImportantRed Hat Product Security
Products
Official CSAF product identity
Published · March 9, 2021
Updated · August 25, 2026
Topic
An update for kpatch-patch is now available for Red Hat Enterprise Linux 8.2 Extended Update Support.
Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.
Description
This is a kernel live patch module which is automatically loaded by the RPM post-install script to modify the code of a running kernel.
Security Fix(es):
-
kernel: bad kfree in auditfilter.c may lead to escalation of privilege (CVE-2020-0444)
-
kernel: Local buffer overflow in ctnetlink_parse_tuple_filter in net/netfilter/nf_conntrack_netlink.c (CVE-2020-25211)
-
kernel: locking issue in drivers/tty/tty_jobctrl.c can lead to an use-after-free (CVE-2020-29661)
For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.