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

Synopsis:          Moderate: kernel-alt security and bug fix update
Advisory ID:       RHSA-2020:5079-01
Product:           Red Hat Enterprise Linux
Advisory URL:      https://access.redhat.com/errata/RHSA-2020:5079
Issue date:        2020-11-10
CVE Names:         CVE-2020-25641 
=====================================================================

1. Summary:

An update for kernel-alt is now available for Red Hat Enterprise Linux 7.

Red Hat Product Security has rated this update as having a security impact
of Moderate. 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 for ARM and IBM Power LE (POWER9) Server (v. 7) - aarch64, noarch, ppc64le, s390x
Red Hat Enterprise Linux for ARM and IBM Power LE (POWER9) Server Optional (v. 7) - aarch64, noarch, ppc64le

3. Description:

The kernel-alt packages provide the Linux kernel version 4.x.

Security Fix(es):

* kernel: soft-lockups in iov_iter_copy_from_user_atomic() could result in
DoS (CVE-2020-25641)

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.

Bug Fix(es):

* RHEL-Alt-7.6 - kernel "Oops: Kernel access of bad area" in
crypto_unregister_instance while running LTP testcase crypto_user02
(BZ#1882230)

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

The system must be rebooted for this update to take effect.

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

1881424 - CVE-2020-25641 kernel: soft-lockups in iov_iter_copy_from_user_atomic() could result in DoS

6. Package List:

Red Hat Enterprise Linux for ARM and IBM Power LE (POWER9) Server (v. 7):

Source:
kernel-alt-4.14.0-115.33.1.el7a.src.rpm

aarch64:
kernel-4.14.0-115.33.1.el7a.aarch64.rpm
kernel-debug-4.14.0-115.33.1.el7a.aarch64.rpm
kernel-debug-debuginfo-4.14.0-115.33.1.el7a.aarch64.rpm
kernel-debug-devel-4.14.0-115.33.1.el7a.aarch64.rpm
kernel-debuginfo-4.14.0-115.33.1.el7a.aarch64.rpm
kernel-debuginfo-common-aarch64-4.14.0-115.33.1.el7a.aarch64.rpm
kernel-devel-4.14.0-115.33.1.el7a.aarch64.rpm
kernel-headers-4.14.0-115.33.1.el7a.aarch64.rpm
kernel-tools-4.14.0-115.33.1.el7a.aarch64.rpm
kernel-tools-debuginfo-4.14.0-115.33.1.el7a.aarch64.rpm
kernel-tools-libs-4.14.0-115.33.1.el7a.aarch64.rpm
perf-4.14.0-115.33.1.el7a.aarch64.rpm
perf-debuginfo-4.14.0-115.33.1.el7a.aarch64.rpm
python-perf-4.14.0-115.33.1.el7a.aarch64.rpm
python-perf-debuginfo-4.14.0-115.33.1.el7a.aarch64.rpm

noarch:
kernel-abi-whitelists-4.14.0-115.33.1.el7a.noarch.rpm
kernel-doc-4.14.0-115.33.1.el7a.noarch.rpm

ppc64le:
kernel-4.14.0-115.33.1.el7a.ppc64le.rpm
kernel-bootwrapper-4.14.0-115.33.1.el7a.ppc64le.rpm
kernel-debug-4.14.0-115.33.1.el7a.ppc64le.rpm
kernel-debug-debuginfo-4.14.0-115.33.1.el7a.ppc64le.rpm
kernel-debuginfo-4.14.0-115.33.1.el7a.ppc64le.rpm
kernel-debuginfo-common-ppc64le-4.14.0-115.33.1.el7a.ppc64le.rpm
kernel-devel-4.14.0-115.33.1.el7a.ppc64le.rpm
kernel-headers-4.14.0-115.33.1.el7a.ppc64le.rpm
kernel-tools-4.14.0-115.33.1.el7a.ppc64le.rpm
kernel-tools-debuginfo-4.14.0-115.33.1.el7a.ppc64le.rpm
kernel-tools-libs-4.14.0-115.33.1.el7a.ppc64le.rpm
perf-4.14.0-115.33.1.el7a.ppc64le.rpm
perf-debuginfo-4.14.0-115.33.1.el7a.ppc64le.rpm
python-perf-4.14.0-115.33.1.el7a.ppc64le.rpm
python-perf-debuginfo-4.14.0-115.33.1.el7a.ppc64le.rpm

s390x:
kernel-4.14.0-115.33.1.el7a.s390x.rpm
kernel-debug-4.14.0-115.33.1.el7a.s390x.rpm
kernel-debug-debuginfo-4.14.0-115.33.1.el7a.s390x.rpm
kernel-debug-devel-4.14.0-115.33.1.el7a.s390x.rpm
kernel-debuginfo-4.14.0-115.33.1.el7a.s390x.rpm
kernel-debuginfo-common-s390x-4.14.0-115.33.1.el7a.s390x.rpm
kernel-devel-4.14.0-115.33.1.el7a.s390x.rpm
kernel-headers-4.14.0-115.33.1.el7a.s390x.rpm
kernel-kdump-4.14.0-115.33.1.el7a.s390x.rpm
kernel-kdump-debuginfo-4.14.0-115.33.1.el7a.s390x.rpm
kernel-kdump-devel-4.14.0-115.33.1.el7a.s390x.rpm
perf-4.14.0-115.33.1.el7a.s390x.rpm
perf-debuginfo-4.14.0-115.33.1.el7a.s390x.rpm
python-perf-4.14.0-115.33.1.el7a.s390x.rpm
python-perf-debuginfo-4.14.0-115.33.1.el7a.s390x.rpm

Red Hat Enterprise Linux for ARM and IBM Power LE (POWER9) Server Optional (v. 7):

aarch64:
kernel-debug-debuginfo-4.14.0-115.33.1.el7a.aarch64.rpm
kernel-debuginfo-4.14.0-115.33.1.el7a.aarch64.rpm
kernel-debuginfo-common-aarch64-4.14.0-115.33.1.el7a.aarch64.rpm
kernel-tools-debuginfo-4.14.0-115.33.1.el7a.aarch64.rpm
kernel-tools-libs-devel-4.14.0-115.33.1.el7a.aarch64.rpm
perf-debuginfo-4.14.0-115.33.1.el7a.aarch64.rpm
python-perf-debuginfo-4.14.0-115.33.1.el7a.aarch64.rpm

noarch:
kernel-doc-4.14.0-115.33.1.el7a.noarch.rpm

ppc64le:
kernel-debug-debuginfo-4.14.0-115.33.1.el7a.ppc64le.rpm
kernel-debug-devel-4.14.0-115.33.1.el7a.ppc64le.rpm
kernel-debuginfo-4.14.0-115.33.1.el7a.ppc64le.rpm
kernel-debuginfo-common-ppc64le-4.14.0-115.33.1.el7a.ppc64le.rpm
kernel-tools-debuginfo-4.14.0-115.33.1.el7a.ppc64le.rpm
kernel-tools-libs-devel-4.14.0-115.33.1.el7a.ppc64le.rpm
perf-debuginfo-4.14.0-115.33.1.el7a.ppc64le.rpm
python-perf-debuginfo-4.14.0-115.33.1.el7a.ppc64le.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-2020-25641
https://access.redhat.com/security/updates/classification/#moderate

8. Contact:

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

Copyright 2020 Red Hat, Inc.
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