RHSA-2022:8989: Important: kpatch-patch security update

Published Dec 13, 2022
·
Updated

The kpatch management tool provides a kernel patching infrastructure which allows you to patch a running kernel without rebooting or restarting any processes.Security Fix(es): kernel: KVM: cmpxchggpte can write to pfns outside the userspace region (CVE-2022-1158) kernel: openvswitch: integer underflow leads to out-of-bounds write in reservesfasize() (CVE-2022-2639) 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_0-193_81_1-1-3.el8_2
4_18_0-193_81_1-1-3.el8_2
redhat/kpatch-patch<4_18_0-193_87_1-1-2.el8_2
4_18_0-193_87_1-1-2.el8_2
redhat/kpatch-patch<4_18_0-193_90_1-1-2.el8_2
4_18_0-193_90_1-1-2.el8_2
redhat/kpatch-patch<4_18_0-193_91_1-1-2.el8_2
4_18_0-193_91_1-1-2.el8_2
redhat/kpatch-patch<4_18_0-193_93_1-1-1.el8_2
4_18_0-193_93_1-1-1.el8_2
redhat/kpatch-patch<4_18_0-193_81_1-1-3.el8_2
4_18_0-193_81_1-1-3.el8_2
redhat/kpatch-patch<4_18_0-193_81_1-debuginfo-1-3.el8_2
4_18_0-193_81_1-debuginfo-1-3.el8_2
redhat/kpatch-patch<4_18_0-193_81_1-debugsource-1-3.el8_2
4_18_0-193_81_1-debugsource-1-3.el8_2
redhat/kpatch-patch<4_18_0-193_87_1-1-2.el8_2
4_18_0-193_87_1-1-2.el8_2
redhat/kpatch-patch<4_18_0-193_87_1-debuginfo-1-2.el8_2
4_18_0-193_87_1-debuginfo-1-2.el8_2
redhat/kpatch-patch<4_18_0-193_87_1-debugsource-1-2.el8_2
4_18_0-193_87_1-debugsource-1-2.el8_2
redhat/kpatch-patch<4_18_0-193_90_1-1-2.el8_2
4_18_0-193_90_1-1-2.el8_2
redhat/kpatch-patch<4_18_0-193_90_1-debuginfo-1-2.el8_2
4_18_0-193_90_1-debuginfo-1-2.el8_2
redhat/kpatch-patch<4_18_0-193_90_1-debugsource-1-2.el8_2
4_18_0-193_90_1-debugsource-1-2.el8_2
redhat/kpatch-patch<4_18_0-193_91_1-1-2.el8_2
4_18_0-193_91_1-1-2.el8_2
redhat/kpatch-patch<4_18_0-193_91_1-debuginfo-1-2.el8_2
4_18_0-193_91_1-debuginfo-1-2.el8_2
redhat/kpatch-patch<4_18_0-193_91_1-debugsource-1-2.el8_2
4_18_0-193_91_1-debugsource-1-2.el8_2
redhat/kpatch-patch<4_18_0-193_93_1-1-1.el8_2
4_18_0-193_93_1-1-1.el8_2
redhat/kpatch-patch<4_18_0-193_93_1-debuginfo-1-1.el8_2
4_18_0-193_93_1-debuginfo-1-1.el8_2
redhat/kpatch-patch<4_18_0-193_93_1-debugsource-1-1.el8_2
4_18_0-193_93_1-debugsource-1-1.el8_2
redhat/kpatch-patch<4_18_0-193_81_1-1-3.el8_2
4_18_0-193_81_1-1-3.el8_2
redhat/kpatch-patch<4_18_0-193_81_1-debuginfo-1-3.el8_2
4_18_0-193_81_1-debuginfo-1-3.el8_2
redhat/kpatch-patch<4_18_0-193_81_1-debugsource-1-3.el8_2
4_18_0-193_81_1-debugsource-1-3.el8_2
redhat/kpatch-patch<4_18_0-193_87_1-1-2.el8_2
4_18_0-193_87_1-1-2.el8_2
redhat/kpatch-patch<4_18_0-193_87_1-debuginfo-1-2.el8_2
4_18_0-193_87_1-debuginfo-1-2.el8_2
redhat/kpatch-patch<4_18_0-193_87_1-debugsource-1-2.el8_2
4_18_0-193_87_1-debugsource-1-2.el8_2
redhat/kpatch-patch<4_18_0-193_90_1-1-2.el8_2
4_18_0-193_90_1-1-2.el8_2
redhat/kpatch-patch<4_18_0-193_90_1-debuginfo-1-2.el8_2
4_18_0-193_90_1-debuginfo-1-2.el8_2
redhat/kpatch-patch<4_18_0-193_90_1-debugsource-1-2.el8_2
4_18_0-193_90_1-debugsource-1-2.el8_2
redhat/kpatch-patch<4_18_0-193_91_1-1-2.el8_2
4_18_0-193_91_1-1-2.el8_2
redhat/kpatch-patch<4_18_0-193_91_1-debuginfo-1-2.el8_2
4_18_0-193_91_1-debuginfo-1-2.el8_2
redhat/kpatch-patch<4_18_0-193_91_1-debugsource-1-2.el8_2
4_18_0-193_91_1-debugsource-1-2.el8_2
redhat/kpatch-patch<4_18_0-193_93_1-1-1.el8_2
4_18_0-193_93_1-1-1.el8_2
redhat/kpatch-patch<4_18_0-193_93_1-debuginfo-1-1.el8_2
4_18_0-193_93_1-debuginfo-1-1.el8_2
redhat/kpatch-patch<4_18_0-193_93_1-debugsource-1-1.el8_2
4_18_0-193_93_1-debugsource-1-1.el8_2

Remediation

Event History

Feb 6, 2026
Advisory Published
via Red Hat·06:05 PM
Data Sourced
via Red Hat·06:05 PM
RemedyDescriptionAffected Software

Frequently Asked Questions

1

What is the severity of RHSA-2022:8989?

The severity of RHSA-2022:8989 is classified as important.

2

What does RHSA-2022:8989 address?

RHSA-2022:8989 addresses a vulnerability in the kpatch management tool allowing potential unauthorized access to memory.

3

How do I fix RHSA-2022:8989?

To fix RHSA-2022:8989, update your system to install the latest version of the kpatch-patch package listed in the advisory.

4

What are the affected versions in RHSA-2022:8989?

Affected versions in RHSA-2022:8989 include several versions of the kpatch-patch package up to 4_18_0-193_93_1-1-1.el8_2.

5

Is there a workaround for RHSA-2022:8989?

There is no specific workaround for RHSA-2022:8989; applying the security update is the recommended approach.

Contact

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