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

Synopsis:          Moderate: kernel security, bug fix, and enhancement update
Advisory ID:       RHSA-2021:3548-01
Product:           Red Hat Enterprise Linux
Advisory URL:      https://access.redhat.com/errata/RHSA-2021:3548
Issue date:        2021-09-15
CVE Names:         CVE-2021-3653 
=====================================================================

1. Summary:

An update for kernel is now available for Red Hat Enterprise Linux 8.

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 (v. 8) - aarch64, ppc64le, x86_64
Red Hat Enterprise Linux BaseOS (v. 8) - 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)

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):

* RHEL8.4 Nightly[0308] - HST:STC950:Fleetwood: LPAR crashed during LPM:
BUG at lib/locks.c:34!  (using ibmvfc) (BZ#1969792)

* RHEL8.2 - s390/vtime: fix increased steal time accounting (BZ#1988386)

* [FJ8.4 Bug]: Installation of RHEL8.4 hang up on a Tatlow platform while
loading intel_lpss_pci module. (BZ#1989560)

* kernel panic in drm_fb_helper_dirty_work() caused by a race condition qxl
driver (BZ#1992839)

* [RHEL8.4] TIOCGSERIAL ioctl fails on serial device (BZ#1993872)

* RHEL8.4 Nightly[0208] - kernel panic when executing test case for
persistent device configuration (using DASD) (BZ#1995206)

* Killing ceph daemon leaving an unhealthy ocs/ocp cluster (worker node/s
NotReady) (BZ#1995862)

* ceph: potential data corruption in cephfs write_begin codepath
(BZ#1996680)

* libceph: allow addrvecs with a single NONE/blank address (BZ#1996682)

* [iavf] traffic stops after host sets vf trust on (BZ#1997536)

* [ice][iavf] hit some call trace and system panic when create-remove-vfs
in loop (BZ#1997538)

* Missing backport of IMA boot aggregate calculation in rhel 8.4 kernel
(BZ#1997766)

* XArray tests broken for single processor (BZ#1997997)

* [RHEL-8.4] mlock() end up returning -EINVAL instead of -ENOMEM in
rewriting the upper address bits. (BZ#1997998)

* Kernel panic at n_tty_set_termios+0x30 (BZ#1997999)

* [ice]BUG: scheduling while atomic: ifenslave/270215/0x00000200
(BZ#2000129)

* [ice]port lost connectivity after removing from bonding (BZ#2000130)

Enhancement(s):

* [Mellanox 8.5 FEAT] mlx5: drivers update upto Linux v5.12 (BZ#1983681)

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)

6. Package List:

Red Hat Enterprise Linux BaseOS (v. 8):

Source:
kernel-4.18.0-305.19.1.el8_4.src.rpm

aarch64:
bpftool-4.18.0-305.19.1.el8_4.aarch64.rpm
bpftool-debuginfo-4.18.0-305.19.1.el8_4.aarch64.rpm
kernel-4.18.0-305.19.1.el8_4.aarch64.rpm
kernel-core-4.18.0-305.19.1.el8_4.aarch64.rpm
kernel-cross-headers-4.18.0-305.19.1.el8_4.aarch64.rpm
kernel-debug-4.18.0-305.19.1.el8_4.aarch64.rpm
kernel-debug-core-4.18.0-305.19.1.el8_4.aarch64.rpm
kernel-debug-debuginfo-4.18.0-305.19.1.el8_4.aarch64.rpm
kernel-debug-devel-4.18.0-305.19.1.el8_4.aarch64.rpm
kernel-debug-modules-4.18.0-305.19.1.el8_4.aarch64.rpm
kernel-debug-modules-extra-4.18.0-305.19.1.el8_4.aarch64.rpm
kernel-debuginfo-4.18.0-305.19.1.el8_4.aarch64.rpm
kernel-debuginfo-common-aarch64-4.18.0-305.19.1.el8_4.aarch64.rpm
kernel-devel-4.18.0-305.19.1.el8_4.aarch64.rpm
kernel-headers-4.18.0-305.19.1.el8_4.aarch64.rpm
kernel-modules-4.18.0-305.19.1.el8_4.aarch64.rpm
kernel-modules-extra-4.18.0-305.19.1.el8_4.aarch64.rpm
kernel-tools-4.18.0-305.19.1.el8_4.aarch64.rpm
kernel-tools-debuginfo-4.18.0-305.19.1.el8_4.aarch64.rpm
kernel-tools-libs-4.18.0-305.19.1.el8_4.aarch64.rpm
perf-4.18.0-305.19.1.el8_4.aarch64.rpm
perf-debuginfo-4.18.0-305.19.1.el8_4.aarch64.rpm
python3-perf-4.18.0-305.19.1.el8_4.aarch64.rpm
python3-perf-debuginfo-4.18.0-305.19.1.el8_4.aarch64.rpm

noarch:
kernel-abi-stablelists-4.18.0-305.19.1.el8_4.noarch.rpm
kernel-doc-4.18.0-305.19.1.el8_4.noarch.rpm

ppc64le:
bpftool-4.18.0-305.19.1.el8_4.ppc64le.rpm
bpftool-debuginfo-4.18.0-305.19.1.el8_4.ppc64le.rpm
kernel-4.18.0-305.19.1.el8_4.ppc64le.rpm
kernel-core-4.18.0-305.19.1.el8_4.ppc64le.rpm
kernel-cross-headers-4.18.0-305.19.1.el8_4.ppc64le.rpm
kernel-debug-4.18.0-305.19.1.el8_4.ppc64le.rpm
kernel-debug-core-4.18.0-305.19.1.el8_4.ppc64le.rpm
kernel-debug-debuginfo-4.18.0-305.19.1.el8_4.ppc64le.rpm
kernel-debug-devel-4.18.0-305.19.1.el8_4.ppc64le.rpm
kernel-debug-modules-4.18.0-305.19.1.el8_4.ppc64le.rpm
kernel-debug-modules-extra-4.18.0-305.19.1.el8_4.ppc64le.rpm
kernel-debuginfo-4.18.0-305.19.1.el8_4.ppc64le.rpm
kernel-debuginfo-common-ppc64le-4.18.0-305.19.1.el8_4.ppc64le.rpm
kernel-devel-4.18.0-305.19.1.el8_4.ppc64le.rpm
kernel-headers-4.18.0-305.19.1.el8_4.ppc64le.rpm
kernel-modules-4.18.0-305.19.1.el8_4.ppc64le.rpm
kernel-modules-extra-4.18.0-305.19.1.el8_4.ppc64le.rpm
kernel-tools-4.18.0-305.19.1.el8_4.ppc64le.rpm
kernel-tools-debuginfo-4.18.0-305.19.1.el8_4.ppc64le.rpm
kernel-tools-libs-4.18.0-305.19.1.el8_4.ppc64le.rpm
perf-4.18.0-305.19.1.el8_4.ppc64le.rpm
perf-debuginfo-4.18.0-305.19.1.el8_4.ppc64le.rpm
python3-perf-4.18.0-305.19.1.el8_4.ppc64le.rpm
python3-perf-debuginfo-4.18.0-305.19.1.el8_4.ppc64le.rpm

s390x:
bpftool-4.18.0-305.19.1.el8_4.s390x.rpm
bpftool-debuginfo-4.18.0-305.19.1.el8_4.s390x.rpm
kernel-4.18.0-305.19.1.el8_4.s390x.rpm
kernel-core-4.18.0-305.19.1.el8_4.s390x.rpm
kernel-cross-headers-4.18.0-305.19.1.el8_4.s390x.rpm
kernel-debug-4.18.0-305.19.1.el8_4.s390x.rpm
kernel-debug-core-4.18.0-305.19.1.el8_4.s390x.rpm
kernel-debug-debuginfo-4.18.0-305.19.1.el8_4.s390x.rpm
kernel-debug-devel-4.18.0-305.19.1.el8_4.s390x.rpm
kernel-debug-modules-4.18.0-305.19.1.el8_4.s390x.rpm
kernel-debug-modules-extra-4.18.0-305.19.1.el8_4.s390x.rpm
kernel-debuginfo-4.18.0-305.19.1.el8_4.s390x.rpm
kernel-debuginfo-common-s390x-4.18.0-305.19.1.el8_4.s390x.rpm
kernel-devel-4.18.0-305.19.1.el8_4.s390x.rpm
kernel-headers-4.18.0-305.19.1.el8_4.s390x.rpm
kernel-modules-4.18.0-305.19.1.el8_4.s390x.rpm
kernel-modules-extra-4.18.0-305.19.1.el8_4.s390x.rpm
kernel-tools-4.18.0-305.19.1.el8_4.s390x.rpm
kernel-tools-debuginfo-4.18.0-305.19.1.el8_4.s390x.rpm
kernel-zfcpdump-4.18.0-305.19.1.el8_4.s390x.rpm
kernel-zfcpdump-core-4.18.0-305.19.1.el8_4.s390x.rpm
kernel-zfcpdump-debuginfo-4.18.0-305.19.1.el8_4.s390x.rpm
kernel-zfcpdump-devel-4.18.0-305.19.1.el8_4.s390x.rpm
kernel-zfcpdump-modules-4.18.0-305.19.1.el8_4.s390x.rpm
kernel-zfcpdump-modules-extra-4.18.0-305.19.1.el8_4.s390x.rpm
perf-4.18.0-305.19.1.el8_4.s390x.rpm
perf-debuginfo-4.18.0-305.19.1.el8_4.s390x.rpm
python3-perf-4.18.0-305.19.1.el8_4.s390x.rpm
python3-perf-debuginfo-4.18.0-305.19.1.el8_4.s390x.rpm

x86_64:
bpftool-4.18.0-305.19.1.el8_4.x86_64.rpm
bpftool-debuginfo-4.18.0-305.19.1.el8_4.x86_64.rpm
kernel-4.18.0-305.19.1.el8_4.x86_64.rpm
kernel-core-4.18.0-305.19.1.el8_4.x86_64.rpm
kernel-cross-headers-4.18.0-305.19.1.el8_4.x86_64.rpm
kernel-debug-4.18.0-305.19.1.el8_4.x86_64.rpm
kernel-debug-core-4.18.0-305.19.1.el8_4.x86_64.rpm
kernel-debug-debuginfo-4.18.0-305.19.1.el8_4.x86_64.rpm
kernel-debug-devel-4.18.0-305.19.1.el8_4.x86_64.rpm
kernel-debug-modules-4.18.0-305.19.1.el8_4.x86_64.rpm
kernel-debug-modules-extra-4.18.0-305.19.1.el8_4.x86_64.rpm
kernel-debuginfo-4.18.0-305.19.1.el8_4.x86_64.rpm
kernel-debuginfo-common-x86_64-4.18.0-305.19.1.el8_4.x86_64.rpm
kernel-devel-4.18.0-305.19.1.el8_4.x86_64.rpm
kernel-headers-4.18.0-305.19.1.el8_4.x86_64.rpm
kernel-modules-4.18.0-305.19.1.el8_4.x86_64.rpm
kernel-modules-extra-4.18.0-305.19.1.el8_4.x86_64.rpm
kernel-tools-4.18.0-305.19.1.el8_4.x86_64.rpm
kernel-tools-debuginfo-4.18.0-305.19.1.el8_4.x86_64.rpm
kernel-tools-libs-4.18.0-305.19.1.el8_4.x86_64.rpm
perf-4.18.0-305.19.1.el8_4.x86_64.rpm
perf-debuginfo-4.18.0-305.19.1.el8_4.x86_64.rpm
python3-perf-4.18.0-305.19.1.el8_4.x86_64.rpm
python3-perf-debuginfo-4.18.0-305.19.1.el8_4.x86_64.rpm

Red Hat CodeReady Linux Builder (v. 8):

aarch64:
bpftool-debuginfo-4.18.0-305.19.1.el8_4.aarch64.rpm
kernel-debug-debuginfo-4.18.0-305.19.1.el8_4.aarch64.rpm
kernel-debuginfo-4.18.0-305.19.1.el8_4.aarch64.rpm
kernel-debuginfo-common-aarch64-4.18.0-305.19.1.el8_4.aarch64.rpm
kernel-tools-debuginfo-4.18.0-305.19.1.el8_4.aarch64.rpm
kernel-tools-libs-devel-4.18.0-305.19.1.el8_4.aarch64.rpm
perf-debuginfo-4.18.0-305.19.1.el8_4.aarch64.rpm
python3-perf-debuginfo-4.18.0-305.19.1.el8_4.aarch64.rpm

ppc64le:
bpftool-debuginfo-4.18.0-305.19.1.el8_4.ppc64le.rpm
kernel-debug-debuginfo-4.18.0-305.19.1.el8_4.ppc64le.rpm
kernel-debuginfo-4.18.0-305.19.1.el8_4.ppc64le.rpm
kernel-debuginfo-common-ppc64le-4.18.0-305.19.1.el8_4.ppc64le.rpm
kernel-tools-debuginfo-4.18.0-305.19.1.el8_4.ppc64le.rpm
kernel-tools-libs-devel-4.18.0-305.19.1.el8_4.ppc64le.rpm
perf-debuginfo-4.18.0-305.19.1.el8_4.ppc64le.rpm
python3-perf-debuginfo-4.18.0-305.19.1.el8_4.ppc64le.rpm

x86_64:
bpftool-debuginfo-4.18.0-305.19.1.el8_4.x86_64.rpm
kernel-debug-debuginfo-4.18.0-305.19.1.el8_4.x86_64.rpm
kernel-debuginfo-4.18.0-305.19.1.el8_4.x86_64.rpm
kernel-debuginfo-common-x86_64-4.18.0-305.19.1.el8_4.x86_64.rpm
kernel-tools-debuginfo-4.18.0-305.19.1.el8_4.x86_64.rpm
kernel-tools-libs-devel-4.18.0-305.19.1.el8_4.x86_64.rpm
perf-debuginfo-4.18.0-305.19.1.el8_4.x86_64.rpm
python3-perf-debuginfo-4.18.0-305.19.1.el8_4.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/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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