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

Synopsis:          Important: kpatch-patch security update
Advisory ID:       RHSA-2021:2285-01
Product:           Red Hat Enterprise Linux
Advisory URL:      https://access.redhat.com/errata/RHSA-2021:2285
Issue date:        2021-06-08
CVE Names:         CVE-2021-3347 
=====================================================================

1. Summary:

An update 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 via PI futex state (CVE-2021-3347)

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/):

1922249 - CVE-2021-3347 kernel: Use after free via PI futex state

6. Package List:

Red Hat Enterprise Linux Server (v. 7):

Source:
kpatch-patch-3_10_0-1160-1-6.el7.src.rpm
kpatch-patch-3_10_0-1160_11_1-1-5.el7.src.rpm
kpatch-patch-3_10_0-1160_15_2-1-5.el7.src.rpm
kpatch-patch-3_10_0-1160_21_1-1-3.el7.src.rpm
kpatch-patch-3_10_0-1160_24_1-1-1.el7.src.rpm
kpatch-patch-3_10_0-1160_25_1-1-1.el7.src.rpm
kpatch-patch-3_10_0-1160_2_1-1-6.el7.src.rpm
kpatch-patch-3_10_0-1160_2_2-1-6.el7.src.rpm
kpatch-patch-3_10_0-1160_6_1-1-6.el7.src.rpm

ppc64le:
kpatch-patch-3_10_0-1160-1-6.el7.ppc64le.rpm
kpatch-patch-3_10_0-1160-debuginfo-1-6.el7.ppc64le.rpm
kpatch-patch-3_10_0-1160_11_1-1-5.el7.ppc64le.rpm
kpatch-patch-3_10_0-1160_11_1-debuginfo-1-5.el7.ppc64le.rpm
kpatch-patch-3_10_0-1160_15_2-1-5.el7.ppc64le.rpm
kpatch-patch-3_10_0-1160_15_2-debuginfo-1-5.el7.ppc64le.rpm
kpatch-patch-3_10_0-1160_21_1-1-3.el7.ppc64le.rpm
kpatch-patch-3_10_0-1160_21_1-debuginfo-1-3.el7.ppc64le.rpm
kpatch-patch-3_10_0-1160_24_1-1-1.el7.ppc64le.rpm
kpatch-patch-3_10_0-1160_24_1-debuginfo-1-1.el7.ppc64le.rpm
kpatch-patch-3_10_0-1160_25_1-1-1.el7.ppc64le.rpm
kpatch-patch-3_10_0-1160_25_1-debuginfo-1-1.el7.ppc64le.rpm
kpatch-patch-3_10_0-1160_2_1-1-6.el7.ppc64le.rpm
kpatch-patch-3_10_0-1160_2_1-debuginfo-1-6.el7.ppc64le.rpm
kpatch-patch-3_10_0-1160_2_2-1-6.el7.ppc64le.rpm
kpatch-patch-3_10_0-1160_2_2-debuginfo-1-6.el7.ppc64le.rpm
kpatch-patch-3_10_0-1160_6_1-1-6.el7.ppc64le.rpm
kpatch-patch-3_10_0-1160_6_1-debuginfo-1-6.el7.ppc64le.rpm

x86_64:
kpatch-patch-3_10_0-1160-1-6.el7.x86_64.rpm
kpatch-patch-3_10_0-1160-debuginfo-1-6.el7.x86_64.rpm
kpatch-patch-3_10_0-1160_11_1-1-5.el7.x86_64.rpm
kpatch-patch-3_10_0-1160_11_1-debuginfo-1-5.el7.x86_64.rpm
kpatch-patch-3_10_0-1160_15_2-1-5.el7.x86_64.rpm
kpatch-patch-3_10_0-1160_15_2-debuginfo-1-5.el7.x86_64.rpm
kpatch-patch-3_10_0-1160_21_1-1-3.el7.x86_64.rpm
kpatch-patch-3_10_0-1160_21_1-debuginfo-1-3.el7.x86_64.rpm
kpatch-patch-3_10_0-1160_24_1-1-1.el7.x86_64.rpm
kpatch-patch-3_10_0-1160_24_1-debuginfo-1-1.el7.x86_64.rpm
kpatch-patch-3_10_0-1160_25_1-1-1.el7.x86_64.rpm
kpatch-patch-3_10_0-1160_25_1-debuginfo-1-1.el7.x86_64.rpm
kpatch-patch-3_10_0-1160_2_1-1-6.el7.x86_64.rpm
kpatch-patch-3_10_0-1160_2_1-debuginfo-1-6.el7.x86_64.rpm
kpatch-patch-3_10_0-1160_2_2-1-6.el7.x86_64.rpm
kpatch-patch-3_10_0-1160_2_2-debuginfo-1-6.el7.x86_64.rpm
kpatch-patch-3_10_0-1160_6_1-1-6.el7.x86_64.rpm
kpatch-patch-3_10_0-1160_6_1-debuginfo-1-6.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-2021-3347
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 2021 Red Hat, Inc.
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