RHSA-2022:6978: Important: kpatch-patch security update

Published Oct 18, 2022
·
Updated

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): a use-after-free in clsroute filter implementation may lead to privilege escalation (CVE-2022-2588) 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.

Affected Software

35 affected componentsFixes available
redhat/kpatch-patch<4_18_0-305_25_1-1-9.el8_4
4_18_0-305_25_1-1-9.el8_4
redhat/kpatch-patch<4_18_0-305_45_1-1-3.el8_4
4_18_0-305_45_1-1-3.el8_4
redhat/kpatch-patch<4_18_0-305_49_1-1-2.el8_4
4_18_0-305_49_1-1-2.el8_4
redhat/kpatch-patch<4_18_0-305_57_1-1-1.el8_4
4_18_0-305_57_1-1-1.el8_4
redhat/kpatch-patch<4_18_0-305_62_1-1-1.el8_4
4_18_0-305_62_1-1-1.el8_4
redhat/kpatch-patch<4_18_0-305_25_1-1-9.el8_4
4_18_0-305_25_1-1-9.el8_4
redhat/kpatch-patch<4_18_0-305_25_1-debuginfo-1-9.el8_4
4_18_0-305_25_1-debuginfo-1-9.el8_4
redhat/kpatch-patch<4_18_0-305_25_1-debugsource-1-9.el8_4
4_18_0-305_25_1-debugsource-1-9.el8_4
redhat/kpatch-patch<4_18_0-305_45_1-1-3.el8_4
4_18_0-305_45_1-1-3.el8_4
redhat/kpatch-patch<4_18_0-305_45_1-debuginfo-1-3.el8_4
4_18_0-305_45_1-debuginfo-1-3.el8_4
redhat/kpatch-patch<4_18_0-305_45_1-debugsource-1-3.el8_4
4_18_0-305_45_1-debugsource-1-3.el8_4
redhat/kpatch-patch<4_18_0-305_49_1-1-2.el8_4
4_18_0-305_49_1-1-2.el8_4
redhat/kpatch-patch<4_18_0-305_49_1-debuginfo-1-2.el8_4
4_18_0-305_49_1-debuginfo-1-2.el8_4
redhat/kpatch-patch<4_18_0-305_49_1-debugsource-1-2.el8_4
4_18_0-305_49_1-debugsource-1-2.el8_4
redhat/kpatch-patch<4_18_0-305_57_1-1-1.el8_4
4_18_0-305_57_1-1-1.el8_4
redhat/kpatch-patch<4_18_0-305_57_1-debuginfo-1-1.el8_4
4_18_0-305_57_1-debuginfo-1-1.el8_4
redhat/kpatch-patch<4_18_0-305_57_1-debugsource-1-1.el8_4
4_18_0-305_57_1-debugsource-1-1.el8_4
redhat/kpatch-patch<4_18_0-305_62_1-1-1.el8_4
4_18_0-305_62_1-1-1.el8_4
redhat/kpatch-patch<4_18_0-305_62_1-debuginfo-1-1.el8_4
4_18_0-305_62_1-debuginfo-1-1.el8_4
redhat/kpatch-patch<4_18_0-305_62_1-debugsource-1-1.el8_4
4_18_0-305_62_1-debugsource-1-1.el8_4
redhat/kpatch-patch<4_18_0-305_25_1-1-9.el8_4
4_18_0-305_25_1-1-9.el8_4
redhat/kpatch-patch<4_18_0-305_25_1-debuginfo-1-9.el8_4
4_18_0-305_25_1-debuginfo-1-9.el8_4
redhat/kpatch-patch<4_18_0-305_25_1-debugsource-1-9.el8_4
4_18_0-305_25_1-debugsource-1-9.el8_4
redhat/kpatch-patch<4_18_0-305_45_1-1-3.el8_4
4_18_0-305_45_1-1-3.el8_4
redhat/kpatch-patch<4_18_0-305_45_1-debuginfo-1-3.el8_4
4_18_0-305_45_1-debuginfo-1-3.el8_4
redhat/kpatch-patch<4_18_0-305_45_1-debugsource-1-3.el8_4
4_18_0-305_45_1-debugsource-1-3.el8_4
redhat/kpatch-patch<4_18_0-305_49_1-1-2.el8_4
4_18_0-305_49_1-1-2.el8_4
redhat/kpatch-patch<4_18_0-305_49_1-debuginfo-1-2.el8_4
4_18_0-305_49_1-debuginfo-1-2.el8_4
redhat/kpatch-patch<4_18_0-305_49_1-debugsource-1-2.el8_4
4_18_0-305_49_1-debugsource-1-2.el8_4
redhat/kpatch-patch<4_18_0-305_57_1-1-1.el8_4
4_18_0-305_57_1-1-1.el8_4
redhat/kpatch-patch<4_18_0-305_57_1-debuginfo-1-1.el8_4
4_18_0-305_57_1-debuginfo-1-1.el8_4
redhat/kpatch-patch<4_18_0-305_57_1-debugsource-1-1.el8_4
4_18_0-305_57_1-debugsource-1-1.el8_4
redhat/kpatch-patch<4_18_0-305_62_1-1-1.el8_4
4_18_0-305_62_1-1-1.el8_4
redhat/kpatch-patch<4_18_0-305_62_1-debuginfo-1-1.el8_4
4_18_0-305_62_1-debuginfo-1-1.el8_4
redhat/kpatch-patch<4_18_0-305_62_1-debugsource-1-1.el8_4
4_18_0-305_62_1-debugsource-1-1.el8_4

Remediation

Event History

Jun 4, 2026
Advisory Published
via Red Hat·10:50 PM
Data Sourced
via Red Hat·10:50 PM
RemedyDescriptionAffected Software
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Frequently Asked Questions

1

What is the severity of RHSA-2022:6978?

The severity of RHSA-2022:6978 is rated as important.

2

How do I fix RHSA-2022:6978?

To fix RHSA-2022:6978, you should update to kpatch-patch versions 4_18_0-305_25_1-1-9.el8_4 or later.

3

What vulnerability does RHSA-2022:6978 address?

RHSA-2022:6978 addresses a use-after-free vulnerability in the cls_route filter implementation, which may lead to privilege escalation.

4

Which systems are impacted by RHSA-2022:6978?

RHSA-2022:6978 impacts systems running the affected versions of the kpatch-patch package.

5

Is there an alternative to applying the RHSA-2022:6978 update?

Applying the update for RHSA-2022:6978 is strongly recommended as it's the only effective way to mitigate the identified vulnerability.

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