An update for kernel is now available for Red Hat Enterprise Linux 8.1 Extended Update Support. Red Hat Product Security has rated this update as having a security impact of Moderate. A Common Vulnerability Scoring System (CVSS) base score, which

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

Synopsis:          Moderate: kernel security, bug fix, and enhancement update
Advisory ID:       RHSA-2021:3676-01
Product:           Red Hat Enterprise Linux
Advisory URL:      https://access.redhat.com/errata/RHSA-2021:3676
Issue date:        2021-09-28
CVE Names:         CVE-2021-3653 CVE-2021-3656 
====================================================================
1. Summary:

An update for kernel is now available for Red Hat Enterprise Linux 8.1
Extended Update Support.

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 CodeReady Linux Builder EUS (v. 8.1) - aarch64, ppc64le, x86_64
Red Hat Enterprise Linux BaseOS EUS (v. 8.1) - aarch64, noarch, ppc64le, s390x, x86_64

3. Description:

The kernel packages contain the Linux kernel, the core of any Linux
operating system.

Security Fix(es):

* kernel: SVM nested virtualization issue in KVM (AVIC support)
(CVE-2021-3653)

* kernel: SVM nested virtualization issue in KVM (VMLOAD/VMSAVE)
(CVE-2021-3656)

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):

* RHEL8.1 Snapshot1 - [4.18.0-128.el8.ppc64le] [ Brazos 31TB/192 Core ]
While running upstream kernel selftest case system crashed (TM)
(BZ#1996056)

* Kernel panic at n_tty_set_termios+0x30 (BZ#1998001)

Enhancement(s):

* ixgbe: ea7813c6167a [netdrv] ixgbe: fix possible deadlock in
ixgbe_service_task() (BZ#1993834)

* [Marvell 8.2 FEAT] update qla2xxx to latest upstream (BZ#2000531)

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/):

1983686 - CVE-2021-3653 kernel: SVM nested virtualization issue in KVM (AVIC support)
1983988 - CVE-2021-3656 kernel: SVM nested virtualization issue in KVM (VMLOAD/VMSAVE)

6. Package List:

Red Hat Enterprise Linux BaseOS EUS (v. 8.1):

Source:
kernel-4.18.0-147.56.1.el8_1.src.rpm

aarch64:
bpftool-4.18.0-147.56.1.el8_1.aarch64.rpm
bpftool-debuginfo-4.18.0-147.56.1.el8_1.aarch64.rpm
kernel-4.18.0-147.56.1.el8_1.aarch64.rpm
kernel-core-4.18.0-147.56.1.el8_1.aarch64.rpm
kernel-cross-headers-4.18.0-147.56.1.el8_1.aarch64.rpm
kernel-debug-4.18.0-147.56.1.el8_1.aarch64.rpm
kernel-debug-core-4.18.0-147.56.1.el8_1.aarch64.rpm
kernel-debug-debuginfo-4.18.0-147.56.1.el8_1.aarch64.rpm
kernel-debug-devel-4.18.0-147.56.1.el8_1.aarch64.rpm
kernel-debug-modules-4.18.0-147.56.1.el8_1.aarch64.rpm
kernel-debug-modules-extra-4.18.0-147.56.1.el8_1.aarch64.rpm
kernel-debuginfo-4.18.0-147.56.1.el8_1.aarch64.rpm
kernel-debuginfo-common-aarch64-4.18.0-147.56.1.el8_1.aarch64.rpm
kernel-devel-4.18.0-147.56.1.el8_1.aarch64.rpm
kernel-headers-4.18.0-147.56.1.el8_1.aarch64.rpm
kernel-modules-4.18.0-147.56.1.el8_1.aarch64.rpm
kernel-modules-extra-4.18.0-147.56.1.el8_1.aarch64.rpm
kernel-tools-4.18.0-147.56.1.el8_1.aarch64.rpm
kernel-tools-debuginfo-4.18.0-147.56.1.el8_1.aarch64.rpm
kernel-tools-libs-4.18.0-147.56.1.el8_1.aarch64.rpm
perf-4.18.0-147.56.1.el8_1.aarch64.rpm
perf-debuginfo-4.18.0-147.56.1.el8_1.aarch64.rpm
python3-perf-4.18.0-147.56.1.el8_1.aarch64.rpm
python3-perf-debuginfo-4.18.0-147.56.1.el8_1.aarch64.rpm

noarch:
kernel-abi-whitelists-4.18.0-147.56.1.el8_1.noarch.rpm
kernel-doc-4.18.0-147.56.1.el8_1.noarch.rpm

ppc64le:
bpftool-4.18.0-147.56.1.el8_1.ppc64le.rpm
bpftool-debuginfo-4.18.0-147.56.1.el8_1.ppc64le.rpm
kernel-4.18.0-147.56.1.el8_1.ppc64le.rpm
kernel-core-4.18.0-147.56.1.el8_1.ppc64le.rpm
kernel-cross-headers-4.18.0-147.56.1.el8_1.ppc64le.rpm
kernel-debug-4.18.0-147.56.1.el8_1.ppc64le.rpm
kernel-debug-core-4.18.0-147.56.1.el8_1.ppc64le.rpm
kernel-debug-debuginfo-4.18.0-147.56.1.el8_1.ppc64le.rpm
kernel-debug-devel-4.18.0-147.56.1.el8_1.ppc64le.rpm
kernel-debug-modules-4.18.0-147.56.1.el8_1.ppc64le.rpm
kernel-debug-modules-extra-4.18.0-147.56.1.el8_1.ppc64le.rpm
kernel-debuginfo-4.18.0-147.56.1.el8_1.ppc64le.rpm
kernel-debuginfo-common-ppc64le-4.18.0-147.56.1.el8_1.ppc64le.rpm
kernel-devel-4.18.0-147.56.1.el8_1.ppc64le.rpm
kernel-headers-4.18.0-147.56.1.el8_1.ppc64le.rpm
kernel-modules-4.18.0-147.56.1.el8_1.ppc64le.rpm
kernel-modules-extra-4.18.0-147.56.1.el8_1.ppc64le.rpm
kernel-tools-4.18.0-147.56.1.el8_1.ppc64le.rpm
kernel-tools-debuginfo-4.18.0-147.56.1.el8_1.ppc64le.rpm
kernel-tools-libs-4.18.0-147.56.1.el8_1.ppc64le.rpm
perf-4.18.0-147.56.1.el8_1.ppc64le.rpm
perf-debuginfo-4.18.0-147.56.1.el8_1.ppc64le.rpm
python3-perf-4.18.0-147.56.1.el8_1.ppc64le.rpm
python3-perf-debuginfo-4.18.0-147.56.1.el8_1.ppc64le.rpm

s390x:
bpftool-4.18.0-147.56.1.el8_1.s390x.rpm
bpftool-debuginfo-4.18.0-147.56.1.el8_1.s390x.rpm
kernel-4.18.0-147.56.1.el8_1.s390x.rpm
kernel-core-4.18.0-147.56.1.el8_1.s390x.rpm
kernel-cross-headers-4.18.0-147.56.1.el8_1.s390x.rpm
kernel-debug-4.18.0-147.56.1.el8_1.s390x.rpm
kernel-debug-core-4.18.0-147.56.1.el8_1.s390x.rpm
kernel-debug-debuginfo-4.18.0-147.56.1.el8_1.s390x.rpm
kernel-debug-devel-4.18.0-147.56.1.el8_1.s390x.rpm
kernel-debug-modules-4.18.0-147.56.1.el8_1.s390x.rpm
kernel-debug-modules-extra-4.18.0-147.56.1.el8_1.s390x.rpm
kernel-debuginfo-4.18.0-147.56.1.el8_1.s390x.rpm
kernel-debuginfo-common-s390x-4.18.0-147.56.1.el8_1.s390x.rpm
kernel-devel-4.18.0-147.56.1.el8_1.s390x.rpm
kernel-headers-4.18.0-147.56.1.el8_1.s390x.rpm
kernel-modules-4.18.0-147.56.1.el8_1.s390x.rpm
kernel-modules-extra-4.18.0-147.56.1.el8_1.s390x.rpm
kernel-tools-4.18.0-147.56.1.el8_1.s390x.rpm
kernel-tools-debuginfo-4.18.0-147.56.1.el8_1.s390x.rpm
kernel-zfcpdump-4.18.0-147.56.1.el8_1.s390x.rpm
kernel-zfcpdump-core-4.18.0-147.56.1.el8_1.s390x.rpm
kernel-zfcpdump-debuginfo-4.18.0-147.56.1.el8_1.s390x.rpm
kernel-zfcpdump-devel-4.18.0-147.56.1.el8_1.s390x.rpm
kernel-zfcpdump-modules-4.18.0-147.56.1.el8_1.s390x.rpm
kernel-zfcpdump-modules-extra-4.18.0-147.56.1.el8_1.s390x.rpm
perf-4.18.0-147.56.1.el8_1.s390x.rpm
perf-debuginfo-4.18.0-147.56.1.el8_1.s390x.rpm
python3-perf-4.18.0-147.56.1.el8_1.s390x.rpm
python3-perf-debuginfo-4.18.0-147.56.1.el8_1.s390x.rpm

x86_64:
bpftool-4.18.0-147.56.1.el8_1.x86_64.rpm
bpftool-debuginfo-4.18.0-147.56.1.el8_1.x86_64.rpm
kernel-4.18.0-147.56.1.el8_1.x86_64.rpm
kernel-core-4.18.0-147.56.1.el8_1.x86_64.rpm
kernel-cross-headers-4.18.0-147.56.1.el8_1.x86_64.rpm
kernel-debug-4.18.0-147.56.1.el8_1.x86_64.rpm
kernel-debug-core-4.18.0-147.56.1.el8_1.x86_64.rpm
kernel-debug-debuginfo-4.18.0-147.56.1.el8_1.x86_64.rpm
kernel-debug-devel-4.18.0-147.56.1.el8_1.x86_64.rpm
kernel-debug-modules-4.18.0-147.56.1.el8_1.x86_64.rpm
kernel-debug-modules-extra-4.18.0-147.56.1.el8_1.x86_64.rpm
kernel-debuginfo-4.18.0-147.56.1.el8_1.x86_64.rpm
kernel-debuginfo-common-x86_64-4.18.0-147.56.1.el8_1.x86_64.rpm
kernel-devel-4.18.0-147.56.1.el8_1.x86_64.rpm
kernel-headers-4.18.0-147.56.1.el8_1.x86_64.rpm
kernel-modules-4.18.0-147.56.1.el8_1.x86_64.rpm
kernel-modules-extra-4.18.0-147.56.1.el8_1.x86_64.rpm
kernel-tools-4.18.0-147.56.1.el8_1.x86_64.rpm
kernel-tools-debuginfo-4.18.0-147.56.1.el8_1.x86_64.rpm
kernel-tools-libs-4.18.0-147.56.1.el8_1.x86_64.rpm
perf-4.18.0-147.56.1.el8_1.x86_64.rpm
perf-debuginfo-4.18.0-147.56.1.el8_1.x86_64.rpm
python3-perf-4.18.0-147.56.1.el8_1.x86_64.rpm
python3-perf-debuginfo-4.18.0-147.56.1.el8_1.x86_64.rpm

Red Hat CodeReady Linux Builder EUS (v. 8.1):

aarch64:
bpftool-debuginfo-4.18.0-147.56.1.el8_1.aarch64.rpm
kernel-debug-debuginfo-4.18.0-147.56.1.el8_1.aarch64.rpm
kernel-debuginfo-4.18.0-147.56.1.el8_1.aarch64.rpm
kernel-debuginfo-common-aarch64-4.18.0-147.56.1.el8_1.aarch64.rpm
kernel-tools-debuginfo-4.18.0-147.56.1.el8_1.aarch64.rpm
kernel-tools-libs-devel-4.18.0-147.56.1.el8_1.aarch64.rpm
perf-debuginfo-4.18.0-147.56.1.el8_1.aarch64.rpm
python3-perf-debuginfo-4.18.0-147.56.1.el8_1.aarch64.rpm

ppc64le:
bpftool-debuginfo-4.18.0-147.56.1.el8_1.ppc64le.rpm
kernel-debug-debuginfo-4.18.0-147.56.1.el8_1.ppc64le.rpm
kernel-debuginfo-4.18.0-147.56.1.el8_1.ppc64le.rpm
kernel-debuginfo-common-ppc64le-4.18.0-147.56.1.el8_1.ppc64le.rpm
kernel-tools-debuginfo-4.18.0-147.56.1.el8_1.ppc64le.rpm
kernel-tools-libs-devel-4.18.0-147.56.1.el8_1.ppc64le.rpm
perf-debuginfo-4.18.0-147.56.1.el8_1.ppc64le.rpm
python3-perf-debuginfo-4.18.0-147.56.1.el8_1.ppc64le.rpm

x86_64:
bpftool-debuginfo-4.18.0-147.56.1.el8_1.x86_64.rpm
kernel-debug-debuginfo-4.18.0-147.56.1.el8_1.x86_64.rpm
kernel-debuginfo-4.18.0-147.56.1.el8_1.x86_64.rpm
kernel-debuginfo-common-x86_64-4.18.0-147.56.1.el8_1.x86_64.rpm
kernel-tools-debuginfo-4.18.0-147.56.1.el8_1.x86_64.rpm
kernel-tools-libs-devel-4.18.0-147.56.1.el8_1.x86_64.rpm
perf-debuginfo-4.18.0-147.56.1.el8_1.x86_64.rpm
python3-perf-debuginfo-4.18.0-147.56.1.el8_1.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-2021-3653
https://access.redhat.com/security/cve/CVE-2021-3656
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 2021 Red Hat, Inc.
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