An update for kernel is now available for Red Hat Enterprise Linux 8.6 Extended Update Support. 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: kernel security, bug fix, and enhancement update
Advisory ID:       RHSA-2023:1554-01
Product:           Red Hat Enterprise Linux
Advisory URL:      https://access.redhat.com/errata/RHSA-2023:1554
Issue date:        2023-04-04
CVE Names:         CVE-2023-0266 CVE-2023-0386 
====================================================================
1. Summary:

An update for kernel is now available for Red Hat Enterprise Linux 8.6
Extended Update Support.

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 CodeReady Linux Builder EUS (v.8.6) - aarch64, ppc64le, x86_64
Red Hat Enterprise Linux BaseOS EUS (v.8.6) - 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):

* ALSA: pcm: Move rwsem lock inside snd_ctl_elem_read to prevent UAF
(CVE-2023-0266)

* kernel: FUSE filesystem low-privileged user privileges escalation
(CVE-2023-0386)

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 8.7: please integrate "powerpc/64/kdump: Limit kdump base to 512MB"
patch. (BZ#2154272)

* Redhat OpenShift: Error downloading big ZIP files inside pod on power OCP
and pod getting restarted (BZ#2160222)

* RHEL8.4: s390/kexec: fix ipl report address for kdump (BZ#2166297)

* Unable to get QinQ working with ConnectX-4 Lx in SR-IOV scenario
(BZ#2166666)

* mlx5: lag and sriov fixes (BZ#2167648)

* New algorithm limits needed in FIPS mode (BZ#2167771)

* RHEL8.4: dasd: fix no record found for raw_track_access (BZ#2167777)

* kernel panics if iwlwifi firmware can not be loaded (BZ#2169664)

* CSB.V bit never becomes valid for NX Gzip job during LPAR migration
(BZ#2170855)

* Backport Request for locking/rwsem commits (BZ#2170940)

* ipv6 traffic stop when an sriov vf have ipv6 address (BZ#2172551)

* Hyper-V RHEL8.8: Update MANA driver (BZ#2173104)

* Disable 3DES in FIPS mode (BZ#2176523)

* Soft lockup occurred during __page_mapcount (BZ#2177139)

* Task hangs in blk_mq_get_tag while no tags are in use (BZ#2178225)

* Node locked up and not responsive due to potential rcu stall (BZ#2178273)

Enhancement(s):

* Intel 8.8 FEAT SPR CPU: AMX: Improve the init_fpstate setup code
(BZ#2168385)

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/):

2159505 - CVE-2023-0386 kernel: FUSE filesystem low-privileged user privileges escalation
2163379 - CVE-2023-0266 ALSA: pcm: Move rwsem lock inside snd_ctl_elem_read to prevent UAF

6. Package List:

Red Hat Enterprise Linux BaseOS EUS (v.8.6):

Source:
kernel-4.18.0-372.51.1.el8_6.src.rpm

aarch64:
bpftool-4.18.0-372.51.1.el8_6.aarch64.rpm
bpftool-debuginfo-4.18.0-372.51.1.el8_6.aarch64.rpm
kernel-4.18.0-372.51.1.el8_6.aarch64.rpm
kernel-core-4.18.0-372.51.1.el8_6.aarch64.rpm
kernel-cross-headers-4.18.0-372.51.1.el8_6.aarch64.rpm
kernel-debug-4.18.0-372.51.1.el8_6.aarch64.rpm
kernel-debug-core-4.18.0-372.51.1.el8_6.aarch64.rpm
kernel-debug-debuginfo-4.18.0-372.51.1.el8_6.aarch64.rpm
kernel-debug-devel-4.18.0-372.51.1.el8_6.aarch64.rpm
kernel-debug-modules-4.18.0-372.51.1.el8_6.aarch64.rpm
kernel-debug-modules-extra-4.18.0-372.51.1.el8_6.aarch64.rpm
kernel-debuginfo-4.18.0-372.51.1.el8_6.aarch64.rpm
kernel-debuginfo-common-aarch64-4.18.0-372.51.1.el8_6.aarch64.rpm
kernel-devel-4.18.0-372.51.1.el8_6.aarch64.rpm
kernel-headers-4.18.0-372.51.1.el8_6.aarch64.rpm
kernel-modules-4.18.0-372.51.1.el8_6.aarch64.rpm
kernel-modules-extra-4.18.0-372.51.1.el8_6.aarch64.rpm
kernel-tools-4.18.0-372.51.1.el8_6.aarch64.rpm
kernel-tools-debuginfo-4.18.0-372.51.1.el8_6.aarch64.rpm
kernel-tools-libs-4.18.0-372.51.1.el8_6.aarch64.rpm
perf-4.18.0-372.51.1.el8_6.aarch64.rpm
perf-debuginfo-4.18.0-372.51.1.el8_6.aarch64.rpm
python3-perf-4.18.0-372.51.1.el8_6.aarch64.rpm
python3-perf-debuginfo-4.18.0-372.51.1.el8_6.aarch64.rpm

noarch:
kernel-abi-stablelists-4.18.0-372.51.1.el8_6.noarch.rpm
kernel-doc-4.18.0-372.51.1.el8_6.noarch.rpm

ppc64le:
bpftool-4.18.0-372.51.1.el8_6.ppc64le.rpm
bpftool-debuginfo-4.18.0-372.51.1.el8_6.ppc64le.rpm
kernel-4.18.0-372.51.1.el8_6.ppc64le.rpm
kernel-core-4.18.0-372.51.1.el8_6.ppc64le.rpm
kernel-cross-headers-4.18.0-372.51.1.el8_6.ppc64le.rpm
kernel-debug-4.18.0-372.51.1.el8_6.ppc64le.rpm
kernel-debug-core-4.18.0-372.51.1.el8_6.ppc64le.rpm
kernel-debug-debuginfo-4.18.0-372.51.1.el8_6.ppc64le.rpm
kernel-debug-devel-4.18.0-372.51.1.el8_6.ppc64le.rpm
kernel-debug-modules-4.18.0-372.51.1.el8_6.ppc64le.rpm
kernel-debug-modules-extra-4.18.0-372.51.1.el8_6.ppc64le.rpm
kernel-debuginfo-4.18.0-372.51.1.el8_6.ppc64le.rpm
kernel-debuginfo-common-ppc64le-4.18.0-372.51.1.el8_6.ppc64le.rpm
kernel-devel-4.18.0-372.51.1.el8_6.ppc64le.rpm
kernel-headers-4.18.0-372.51.1.el8_6.ppc64le.rpm
kernel-modules-4.18.0-372.51.1.el8_6.ppc64le.rpm
kernel-modules-extra-4.18.0-372.51.1.el8_6.ppc64le.rpm
kernel-tools-4.18.0-372.51.1.el8_6.ppc64le.rpm
kernel-tools-debuginfo-4.18.0-372.51.1.el8_6.ppc64le.rpm
kernel-tools-libs-4.18.0-372.51.1.el8_6.ppc64le.rpm
perf-4.18.0-372.51.1.el8_6.ppc64le.rpm
perf-debuginfo-4.18.0-372.51.1.el8_6.ppc64le.rpm
python3-perf-4.18.0-372.51.1.el8_6.ppc64le.rpm
python3-perf-debuginfo-4.18.0-372.51.1.el8_6.ppc64le.rpm

s390x:
bpftool-4.18.0-372.51.1.el8_6.s390x.rpm
bpftool-debuginfo-4.18.0-372.51.1.el8_6.s390x.rpm
kernel-4.18.0-372.51.1.el8_6.s390x.rpm
kernel-core-4.18.0-372.51.1.el8_6.s390x.rpm
kernel-cross-headers-4.18.0-372.51.1.el8_6.s390x.rpm
kernel-debug-4.18.0-372.51.1.el8_6.s390x.rpm
kernel-debug-core-4.18.0-372.51.1.el8_6.s390x.rpm
kernel-debug-debuginfo-4.18.0-372.51.1.el8_6.s390x.rpm
kernel-debug-devel-4.18.0-372.51.1.el8_6.s390x.rpm
kernel-debug-modules-4.18.0-372.51.1.el8_6.s390x.rpm
kernel-debug-modules-extra-4.18.0-372.51.1.el8_6.s390x.rpm
kernel-debuginfo-4.18.0-372.51.1.el8_6.s390x.rpm
kernel-debuginfo-common-s390x-4.18.0-372.51.1.el8_6.s390x.rpm
kernel-devel-4.18.0-372.51.1.el8_6.s390x.rpm
kernel-headers-4.18.0-372.51.1.el8_6.s390x.rpm
kernel-modules-4.18.0-372.51.1.el8_6.s390x.rpm
kernel-modules-extra-4.18.0-372.51.1.el8_6.s390x.rpm
kernel-tools-4.18.0-372.51.1.el8_6.s390x.rpm
kernel-tools-debuginfo-4.18.0-372.51.1.el8_6.s390x.rpm
kernel-zfcpdump-4.18.0-372.51.1.el8_6.s390x.rpm
kernel-zfcpdump-core-4.18.0-372.51.1.el8_6.s390x.rpm
kernel-zfcpdump-debuginfo-4.18.0-372.51.1.el8_6.s390x.rpm
kernel-zfcpdump-devel-4.18.0-372.51.1.el8_6.s390x.rpm
kernel-zfcpdump-modules-4.18.0-372.51.1.el8_6.s390x.rpm
kernel-zfcpdump-modules-extra-4.18.0-372.51.1.el8_6.s390x.rpm
perf-4.18.0-372.51.1.el8_6.s390x.rpm
perf-debuginfo-4.18.0-372.51.1.el8_6.s390x.rpm
python3-perf-4.18.0-372.51.1.el8_6.s390x.rpm
python3-perf-debuginfo-4.18.0-372.51.1.el8_6.s390x.rpm

x86_64:
bpftool-4.18.0-372.51.1.el8_6.x86_64.rpm
bpftool-debuginfo-4.18.0-372.51.1.el8_6.x86_64.rpm
kernel-4.18.0-372.51.1.el8_6.x86_64.rpm
kernel-core-4.18.0-372.51.1.el8_6.x86_64.rpm
kernel-cross-headers-4.18.0-372.51.1.el8_6.x86_64.rpm
kernel-debug-4.18.0-372.51.1.el8_6.x86_64.rpm
kernel-debug-core-4.18.0-372.51.1.el8_6.x86_64.rpm
kernel-debug-debuginfo-4.18.0-372.51.1.el8_6.x86_64.rpm
kernel-debug-devel-4.18.0-372.51.1.el8_6.x86_64.rpm
kernel-debug-modules-4.18.0-372.51.1.el8_6.x86_64.rpm
kernel-debug-modules-extra-4.18.0-372.51.1.el8_6.x86_64.rpm
kernel-debuginfo-4.18.0-372.51.1.el8_6.x86_64.rpm
kernel-debuginfo-common-x86_64-4.18.0-372.51.1.el8_6.x86_64.rpm
kernel-devel-4.18.0-372.51.1.el8_6.x86_64.rpm
kernel-headers-4.18.0-372.51.1.el8_6.x86_64.rpm
kernel-modules-4.18.0-372.51.1.el8_6.x86_64.rpm
kernel-modules-extra-4.18.0-372.51.1.el8_6.x86_64.rpm
kernel-tools-4.18.0-372.51.1.el8_6.x86_64.rpm
kernel-tools-debuginfo-4.18.0-372.51.1.el8_6.x86_64.rpm
kernel-tools-libs-4.18.0-372.51.1.el8_6.x86_64.rpm
perf-4.18.0-372.51.1.el8_6.x86_64.rpm
perf-debuginfo-4.18.0-372.51.1.el8_6.x86_64.rpm
python3-perf-4.18.0-372.51.1.el8_6.x86_64.rpm
python3-perf-debuginfo-4.18.0-372.51.1.el8_6.x86_64.rpm

Red Hat CodeReady Linux Builder EUS (v.8.6):

aarch64:
bpftool-debuginfo-4.18.0-372.51.1.el8_6.aarch64.rpm
kernel-debug-debuginfo-4.18.0-372.51.1.el8_6.aarch64.rpm
kernel-debuginfo-4.18.0-372.51.1.el8_6.aarch64.rpm
kernel-debuginfo-common-aarch64-4.18.0-372.51.1.el8_6.aarch64.rpm
kernel-tools-debuginfo-4.18.0-372.51.1.el8_6.aarch64.rpm
kernel-tools-libs-devel-4.18.0-372.51.1.el8_6.aarch64.rpm
perf-debuginfo-4.18.0-372.51.1.el8_6.aarch64.rpm
python3-perf-debuginfo-4.18.0-372.51.1.el8_6.aarch64.rpm

ppc64le:
bpftool-debuginfo-4.18.0-372.51.1.el8_6.ppc64le.rpm
kernel-debug-debuginfo-4.18.0-372.51.1.el8_6.ppc64le.rpm
kernel-debuginfo-4.18.0-372.51.1.el8_6.ppc64le.rpm
kernel-debuginfo-common-ppc64le-4.18.0-372.51.1.el8_6.ppc64le.rpm
kernel-tools-debuginfo-4.18.0-372.51.1.el8_6.ppc64le.rpm
kernel-tools-libs-devel-4.18.0-372.51.1.el8_6.ppc64le.rpm
perf-debuginfo-4.18.0-372.51.1.el8_6.ppc64le.rpm
python3-perf-debuginfo-4.18.0-372.51.1.el8_6.ppc64le.rpm

x86_64:
bpftool-debuginfo-4.18.0-372.51.1.el8_6.x86_64.rpm
kernel-debug-debuginfo-4.18.0-372.51.1.el8_6.x86_64.rpm
kernel-debuginfo-4.18.0-372.51.1.el8_6.x86_64.rpm
kernel-debuginfo-common-x86_64-4.18.0-372.51.1.el8_6.x86_64.rpm
kernel-tools-debuginfo-4.18.0-372.51.1.el8_6.x86_64.rpm
kernel-tools-libs-devel-4.18.0-372.51.1.el8_6.x86_64.rpm
perf-debuginfo-4.18.0-372.51.1.el8_6.x86_64.rpm
python3-perf-debuginfo-4.18.0-372.51.1.el8_6.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-2023-0266
https://access.redhat.com/security/cve/CVE-2023-0386
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 2023 Red Hat, Inc.
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