RHSA-2020:2567: Important: kpatch-patch security update

Published Jun 15, 2020
·
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: use-after-free in block/bfq-iosched.c related to bfqidleslicetimerbody (CVE-2020-12657) 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

14 affected componentsFixes available
redhat/kpatch-patch<4_18_0-193-1-3.el8
4_18_0-193-1-3.el8
redhat/kpatch-patch<4_18_0-193_1_2-1-1.el8_2
4_18_0-193_1_2-1-1.el8_2
redhat/kpatch-patch<4_18_0-193-1-3.el8
4_18_0-193-1-3.el8
redhat/kpatch-patch<4_18_0-193-debuginfo-1-3.el8
4_18_0-193-debuginfo-1-3.el8
redhat/kpatch-patch<4_18_0-193-debugsource-1-3.el8
4_18_0-193-debugsource-1-3.el8
redhat/kpatch-patch<4_18_0-193_1_2-1-1.el8_2
4_18_0-193_1_2-1-1.el8_2
redhat/kpatch-patch<4_18_0-193_1_2-debuginfo-1-1.el8_2
4_18_0-193_1_2-debuginfo-1-1.el8_2
redhat/kpatch-patch<4_18_0-193_1_2-debugsource-1-1.el8_2
4_18_0-193_1_2-debugsource-1-1.el8_2
redhat/kpatch-patch<4_18_0-193-1-3.el8
4_18_0-193-1-3.el8
redhat/kpatch-patch<4_18_0-193-debuginfo-1-3.el8
4_18_0-193-debuginfo-1-3.el8
redhat/kpatch-patch<4_18_0-193-debugsource-1-3.el8
4_18_0-193-debugsource-1-3.el8
redhat/kpatch-patch<4_18_0-193_1_2-1-1.el8_2
4_18_0-193_1_2-1-1.el8_2
redhat/kpatch-patch<4_18_0-193_1_2-debuginfo-1-1.el8_2
4_18_0-193_1_2-debuginfo-1-1.el8_2
redhat/kpatch-patch<4_18_0-193_1_2-debugsource-1-1.el8_2
4_18_0-193_1_2-debugsource-1-1.el8_2

Remediation

Event History

May 25, 2026
Advisory Published
via Red Hat·03:09 PM
Data Sourced
via Red Hat·03:09 PM
RemedyDescriptionAffected Software

Frequently Asked Questions

1

What is the severity of RHSA-2020:2567?

RHSA-2020:2567 is classified as an important security fix.

2

What vulnerability does RHSA-2020:2567 address?

RHSA-2020:2567 addresses a use-after-free vulnerability in block/bfq-iosched.c related to bfq_idle_slice_timer_body (CVE-2020-12657).

3

How do I fix RHSA-2020:2567?

To fix RHSA-2020:2567, you should apply the recommended kpatch-patch updates specific to your version of Red Hat.

4

What versions of kpatch-patch are affected by RHSA-2020:2567?

RHSA-2020:2567 affects specific versions of kpatch-patch 4_18_0-193-*.

5

Is there a public reference for RHSA-2020:2567?

Yes, you can find details regarding RHSA-2020:2567 through Red Hat's security resources.

Contact

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