RHSA-2021:2716: Important: kpatch-patch security update

Published Jul 20, 2021
·
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): kernel: sizet-to-int conversion vulnerability in the filesystem layer (CVE-2021-33909) kernel: race condition for removal of the HCI controller (CVE-2021-32399) 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

21 affected componentsFixes available
redhat/kpatch-patch<4_18_0-305-1-3.el8
4_18_0-305-1-3.el8
redhat/kpatch-patch<4_18_0-305_3_1-1-2.el8_4
4_18_0-305_3_1-1-2.el8_4
redhat/kpatch-patch<4_18_0-305_7_1-1-1.el8_4
4_18_0-305_7_1-1-1.el8_4
redhat/kpatch-patch<4_18_0-305-1-3.el8
4_18_0-305-1-3.el8
redhat/kpatch-patch<4_18_0-305-debuginfo-1-3.el8
4_18_0-305-debuginfo-1-3.el8
redhat/kpatch-patch<4_18_0-305-debugsource-1-3.el8
4_18_0-305-debugsource-1-3.el8
redhat/kpatch-patch<4_18_0-305_3_1-1-2.el8_4
4_18_0-305_3_1-1-2.el8_4
redhat/kpatch-patch<4_18_0-305_3_1-debuginfo-1-2.el8_4
4_18_0-305_3_1-debuginfo-1-2.el8_4
redhat/kpatch-patch<4_18_0-305_3_1-debugsource-1-2.el8_4
4_18_0-305_3_1-debugsource-1-2.el8_4
redhat/kpatch-patch<4_18_0-305_7_1-1-1.el8_4
4_18_0-305_7_1-1-1.el8_4
redhat/kpatch-patch<4_18_0-305_7_1-debuginfo-1-1.el8_4
4_18_0-305_7_1-debuginfo-1-1.el8_4
redhat/kpatch-patch<4_18_0-305_7_1-debugsource-1-1.el8_4
4_18_0-305_7_1-debugsource-1-1.el8_4
redhat/kpatch-patch<4_18_0-305-1-3.el8
4_18_0-305-1-3.el8
redhat/kpatch-patch<4_18_0-305-debuginfo-1-3.el8
4_18_0-305-debuginfo-1-3.el8
redhat/kpatch-patch<4_18_0-305-debugsource-1-3.el8
4_18_0-305-debugsource-1-3.el8
redhat/kpatch-patch<4_18_0-305_3_1-1-2.el8_4
4_18_0-305_3_1-1-2.el8_4
redhat/kpatch-patch<4_18_0-305_3_1-debuginfo-1-2.el8_4
4_18_0-305_3_1-debuginfo-1-2.el8_4
redhat/kpatch-patch<4_18_0-305_3_1-debugsource-1-2.el8_4
4_18_0-305_3_1-debugsource-1-2.el8_4
redhat/kpatch-patch<4_18_0-305_7_1-1-1.el8_4
4_18_0-305_7_1-1-1.el8_4
redhat/kpatch-patch<4_18_0-305_7_1-debuginfo-1-1.el8_4
4_18_0-305_7_1-debuginfo-1-1.el8_4
redhat/kpatch-patch<4_18_0-305_7_1-debugsource-1-1.el8_4
4_18_0-305_7_1-debugsource-1-1.el8_4

Remediation

Event History

May 25, 2026
Advisory Published
via Red Hat·04:11 PM
Data Sourced
via Red Hat·04:11 PM
RemedyDescriptionAffected Software
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Frequently Asked Questions

1

What is the severity of RHSA-2021:2716?

The severity of RHSA-2021:2716 is classified as important.

2

How do I fix RHSA-2021:2716?

To fix RHSA-2021:2716, update the kpatch-patch package to the recommended versions provided in the advisory.

3

Is my system affected by RHSA-2021:2716?

Systems running vulnerable versions of the kpatch-patch package are affected by RHSA-2021:2716.

4

What vulnerabilities are addressed in RHSA-2021:2716?

RHSA-2021:2716 addresses size_t-to-int conversion vulnerabilities and potential race conditions in the kernel.

5

What are the recommended kpatch-patch versions for RHSA-2021:2716?

The recommended kpatch-patch versions are 4_18_0-305-1-3.el8, 4_18_0-305_3_1-1-2.el8_4, and 4_18_0-305_7_1-1-1.el8_4.

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