A kpatch-patch security update has been released for Red Hat Enterprise Linux 7.

[RHSA-2023:4215-01] Important: kpatch-patch security update

==================================================================== Red Hat Security Advisory

Synopsis: Important: kpatch-patch security update
Advisory ID: RHSA-2023:4215-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2023:4215
Issue date: 2023-07-19
CVE Names: CVE-2022-3564
====================================================================
1. Summary:

An update for kpatch-patch is now available for Red Hat Enterprise Linux 7.

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.

2. Relevant releases/architectures:

Red Hat Enterprise Linux Server (v. 7) - ppc64le, x86_64

3. 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: use-after-free caused by l2cap_reassemble_sdu() in
net/bluetooth/l2cap_core.c (CVE-2022-3564)

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.

4. Solution:

For details on how to apply this update, which includes the changes
described in this advisory, refer to:

https://access.redhat.com/articles/11258

5. Bugs fixed ( https://bugzilla.redhat.com/):

2150999 - CVE-2022-3564 kernel: use-after-free caused by l2cap_reassemble_sdu() in net/bluetooth/l2cap_core.c

6. Package List:

Red Hat Enterprise Linux Server (v. 7):

Source:
kpatch-patch-3_10_0-1160_81_1-1-3.el7.src.rpm
kpatch-patch-3_10_0-1160_83_1-1-2.el7.src.rpm
kpatch-patch-3_10_0-1160_88_1-1-1.el7.src.rpm
kpatch-patch-3_10_0-1160_90_1-1-1.el7.src.rpm
kpatch-patch-3_10_0-1160_92_1-1-1.el7.src.rpm

ppc64le:
kpatch-patch-3_10_0-1160_81_1-1-3.el7.ppc64le.rpm
kpatch-patch-3_10_0-1160_81_1-debuginfo-1-3.el7.ppc64le.rpm
kpatch-patch-3_10_0-1160_83_1-1-2.el7.ppc64le.rpm
kpatch-patch-3_10_0-1160_83_1-debuginfo-1-2.el7.ppc64le.rpm
kpatch-patch-3_10_0-1160_88_1-1-1.el7.ppc64le.rpm
kpatch-patch-3_10_0-1160_88_1-debuginfo-1-1.el7.ppc64le.rpm
kpatch-patch-3_10_0-1160_90_1-1-1.el7.ppc64le.rpm
kpatch-patch-3_10_0-1160_90_1-debuginfo-1-1.el7.ppc64le.rpm
kpatch-patch-3_10_0-1160_92_1-1-1.el7.ppc64le.rpm
kpatch-patch-3_10_0-1160_92_1-debuginfo-1-1.el7.ppc64le.rpm

x86_64:
kpatch-patch-3_10_0-1160_81_1-1-3.el7.x86_64.rpm
kpatch-patch-3_10_0-1160_81_1-debuginfo-1-3.el7.x86_64.rpm
kpatch-patch-3_10_0-1160_83_1-1-2.el7.x86_64.rpm
kpatch-patch-3_10_0-1160_83_1-debuginfo-1-2.el7.x86_64.rpm
kpatch-patch-3_10_0-1160_88_1-1-1.el7.x86_64.rpm
kpatch-patch-3_10_0-1160_88_1-debuginfo-1-1.el7.x86_64.rpm
kpatch-patch-3_10_0-1160_90_1-1-1.el7.x86_64.rpm
kpatch-patch-3_10_0-1160_90_1-debuginfo-1-1.el7.x86_64.rpm
kpatch-patch-3_10_0-1160_92_1-1-1.el7.x86_64.rpm
kpatch-patch-3_10_0-1160_92_1-debuginfo-1-1.el7.x86_64.rpm

These packages are GPG signed by Red Hat for security. Our key and
details on how to verify the signature are available from
https://access.redhat.com/security/team/key/

7. References:

https://access.redhat.com/security/cve/CVE-2022-3564
https://access.redhat.com/security/updates/classification/#important

8. Contact:

The Red Hat security contact is [secalert@redhat.com]. More contact
details at https://access.redhat.com/security/team/contact/

Copyright 2023 Red Hat, Inc.

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