An update is now available for Red Hat Enterprise Linux 7.6 Update Services for SAP Solutions. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score,

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

Synopsis:          Important: kpatch-patch security update
Advisory ID:       RHSA-2021:4773-01
Product:           Red Hat Enterprise Linux
Advisory URL:      https://access.redhat.com/errata/RHSA-2021:4773
Issue date:        2021-11-23
CVE Names:         CVE-2020-36385 
====================================================================
1. Summary:

An update is now available for Red Hat Enterprise Linux 7.6 Update Services
for SAP Solutions.

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 E4S (v. 7.6) - 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 in drivers/infiniband/core/ucma.c ctx
use-after-free (CVE-2020-36385)

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/):

1974319 - CVE-2020-36385 kernel: use-after-free in drivers/infiniband/core/ucma.c ctx use-after-free

6. Package List:

Red Hat Enterprise Linux Server E4S (v. 7.6):

Source:
kpatch-patch-3_10_0-957_65_1-1-7.el7.src.rpm
kpatch-patch-3_10_0-957_66_1-1-7.el7.src.rpm
kpatch-patch-3_10_0-957_70_1-1-6.el7.src.rpm
kpatch-patch-3_10_0-957_72_1-1-4.el7.src.rpm
kpatch-patch-3_10_0-957_76_1-1-4.el7.src.rpm
kpatch-patch-3_10_0-957_78_2-1-3.el7.src.rpm
kpatch-patch-3_10_0-957_80_1-1-2.el7.src.rpm
kpatch-patch-3_10_0-957_84_1-1-1.el7.src.rpm

ppc64le:
kpatch-patch-3_10_0-957_65_1-1-7.el7.ppc64le.rpm
kpatch-patch-3_10_0-957_65_1-debuginfo-1-7.el7.ppc64le.rpm
kpatch-patch-3_10_0-957_66_1-1-7.el7.ppc64le.rpm
kpatch-patch-3_10_0-957_66_1-debuginfo-1-7.el7.ppc64le.rpm
kpatch-patch-3_10_0-957_70_1-1-6.el7.ppc64le.rpm
kpatch-patch-3_10_0-957_70_1-debuginfo-1-6.el7.ppc64le.rpm
kpatch-patch-3_10_0-957_72_1-1-4.el7.ppc64le.rpm
kpatch-patch-3_10_0-957_72_1-debuginfo-1-4.el7.ppc64le.rpm
kpatch-patch-3_10_0-957_76_1-1-4.el7.ppc64le.rpm
kpatch-patch-3_10_0-957_76_1-debuginfo-1-4.el7.ppc64le.rpm
kpatch-patch-3_10_0-957_78_2-1-3.el7.ppc64le.rpm
kpatch-patch-3_10_0-957_78_2-debuginfo-1-3.el7.ppc64le.rpm
kpatch-patch-3_10_0-957_80_1-1-2.el7.ppc64le.rpm
kpatch-patch-3_10_0-957_80_1-debuginfo-1-2.el7.ppc64le.rpm
kpatch-patch-3_10_0-957_84_1-1-1.el7.ppc64le.rpm
kpatch-patch-3_10_0-957_84_1-debuginfo-1-1.el7.ppc64le.rpm

x86_64:
kpatch-patch-3_10_0-957_65_1-1-7.el7.x86_64.rpm
kpatch-patch-3_10_0-957_65_1-debuginfo-1-7.el7.x86_64.rpm
kpatch-patch-3_10_0-957_66_1-1-7.el7.x86_64.rpm
kpatch-patch-3_10_0-957_66_1-debuginfo-1-7.el7.x86_64.rpm
kpatch-patch-3_10_0-957_70_1-1-6.el7.x86_64.rpm
kpatch-patch-3_10_0-957_70_1-debuginfo-1-6.el7.x86_64.rpm
kpatch-patch-3_10_0-957_72_1-1-4.el7.x86_64.rpm
kpatch-patch-3_10_0-957_72_1-debuginfo-1-4.el7.x86_64.rpm
kpatch-patch-3_10_0-957_76_1-1-4.el7.x86_64.rpm
kpatch-patch-3_10_0-957_76_1-debuginfo-1-4.el7.x86_64.rpm
kpatch-patch-3_10_0-957_78_2-1-3.el7.x86_64.rpm
kpatch-patch-3_10_0-957_78_2-debuginfo-1-3.el7.x86_64.rpm
kpatch-patch-3_10_0-957_80_1-1-2.el7.x86_64.rpm
kpatch-patch-3_10_0-957_80_1-debuginfo-1-2.el7.x86_64.rpm
kpatch-patch-3_10_0-957_84_1-1-1.el7.x86_64.rpm
kpatch-patch-3_10_0-957_84_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-2020-36385
https://access.redhat.com/security/updates/classification#important

8. Contact:

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

Copyright 2021 Red Hat, Inc.
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