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Red Hat Product Errata RHSA-2022:6437 - Security Advisory
Issued:
2022-09-13
Updated:
2022-09-13

RHSA-2022:6437 - Security Advisory

  • Overview
  • Updated Packages

Synopsis

Moderate: kernel-rt security and bug fix update

Type/Severity

Security Advisory: Moderate

Red Hat Insights patch analysis

Identify and remediate systems affected by this advisory.

View affected systems

Topic

An update for kernel-rt 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.

Description

The kernel-rt packages provide the Real Time Linux Kernel, which enables fine-tuning for systems with extremely high determinism requirements.

Security Fix(es):

  • Incomplete cleanup of multi-core shared buffers (aka SBDR) (CVE-2022-21123)
  • Incomplete cleanup of microarchitectural fill buffers (aka SBDS) (CVE-2022-21125)
  • Incomplete cleanup in specific special register write operations (aka DRPW) (CVE-2022-21166)

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):

  • The latest RHEL 8.6.z3 kernel changes need to be merged into the RT source tree to keep source parity between the two kernels. (BZ#2111112)

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.

Affected Products

  • Red Hat Enterprise Linux for Real Time 8 x86_64
  • Red Hat Enterprise Linux for Real Time for NFV 8 x86_64
  • Red Hat Enterprise Linux for Real Time - Telecommunications Update Service 8.8 x86_64
  • Red Hat Enterprise Linux for Real Time for NFV - Telecommunications Update Service 8.8 x86_64

Fixes

  • BZ - 2090237 - CVE-2022-21123 hw: cpu: Incomplete cleanup of multi-core shared buffers (aka SBDR)
  • BZ - 2090240 - CVE-2022-21125 hw: cpu: Incomplete cleanup of microarchitectural fill buffers (aka SBDS)
  • BZ - 2090241 - CVE-2022-21166 hw: cpu: Incomplete cleanup in specific special register write operations (aka DRPW)

CVEs

  • CVE-2022-21123
  • CVE-2022-21125
  • CVE-2022-21166

References

  • https://access.redhat.com/security/updates/classification/#moderate
Note: More recent versions of these packages may be available. Click a package name for more details.

Red Hat Enterprise Linux for Real Time 8

SRPM
kernel-rt-4.18.0-372.26.1.rt7.183.el8_6.src.rpm SHA-256: e31b815de054fe18836f5719fe5f9b862b43eb6da83ee051a41afe8cedc7f9de
x86_64
kernel-rt-4.18.0-372.26.1.rt7.183.el8_6.x86_64.rpm SHA-256: 3ef86312db8b90f10379f17410e599ce62522e7778b4cab8fd19762307a18a88
kernel-rt-core-4.18.0-372.26.1.rt7.183.el8_6.x86_64.rpm SHA-256: eee6dc4af4dc02417c993cbc8be9bc86c2d5e04d58afbda910427543f49e2a17
kernel-rt-debug-4.18.0-372.26.1.rt7.183.el8_6.x86_64.rpm SHA-256: c77eede1bfc90d0e564b8866e9d727e01affac8c42fd7f02272f7e2f42e183a1
kernel-rt-debug-core-4.18.0-372.26.1.rt7.183.el8_6.x86_64.rpm SHA-256: 44faff4a947fe8cb45b931baf90851642fdb79219116dc1237e73fc4fbdf07f1
kernel-rt-debug-debuginfo-4.18.0-372.26.1.rt7.183.el8_6.x86_64.rpm SHA-256: a22332b8b0971e9ac650bfdf77b3268ac032dbc22ef525287666688d50d8e5bf
kernel-rt-debug-devel-4.18.0-372.26.1.rt7.183.el8_6.x86_64.rpm SHA-256: 83ac7d5e2f7cc7b1349a7b90f9ba9339f770d57f7441faad4823c360ac0368db
kernel-rt-debug-modules-4.18.0-372.26.1.rt7.183.el8_6.x86_64.rpm SHA-256: 85670961749dbdeae7d8a2adb578109525be382bafd10c2331d39f25141f3814
kernel-rt-debug-modules-extra-4.18.0-372.26.1.rt7.183.el8_6.x86_64.rpm SHA-256: 1501e3d69d7055806387c1f1e72938ef96342626248e5939c0a70cdfc9a74e47
kernel-rt-debuginfo-4.18.0-372.26.1.rt7.183.el8_6.x86_64.rpm SHA-256: 0ed63adbccf694c0275061ebea5701774712511833a547e960ac3f1c4a4b9834
kernel-rt-debuginfo-common-x86_64-4.18.0-372.26.1.rt7.183.el8_6.x86_64.rpm SHA-256: 508c65696bbc17000224786c39d9acdef526d694d2e6dfccc1fb64764245dd5c
kernel-rt-devel-4.18.0-372.26.1.rt7.183.el8_6.x86_64.rpm SHA-256: d3140f9cbcd6460fe76171a242fa0e3f35950c3e8b7ebd1072705cb11281575a
kernel-rt-modules-4.18.0-372.26.1.rt7.183.el8_6.x86_64.rpm SHA-256: c363206f7dfbd5a0ec7deec70721cbde260805fda424dd16b77549251e5a045d
kernel-rt-modules-extra-4.18.0-372.26.1.rt7.183.el8_6.x86_64.rpm SHA-256: 473ba6ead546bee9e1ba14140639bababb215a811aaec0dca89dca1ae75018b9

Red Hat Enterprise Linux for Real Time for NFV 8

SRPM
kernel-rt-4.18.0-372.26.1.rt7.183.el8_6.src.rpm SHA-256: e31b815de054fe18836f5719fe5f9b862b43eb6da83ee051a41afe8cedc7f9de
x86_64
kernel-rt-4.18.0-372.26.1.rt7.183.el8_6.x86_64.rpm SHA-256: 3ef86312db8b90f10379f17410e599ce62522e7778b4cab8fd19762307a18a88
kernel-rt-core-4.18.0-372.26.1.rt7.183.el8_6.x86_64.rpm SHA-256: eee6dc4af4dc02417c993cbc8be9bc86c2d5e04d58afbda910427543f49e2a17
kernel-rt-debug-4.18.0-372.26.1.rt7.183.el8_6.x86_64.rpm SHA-256: c77eede1bfc90d0e564b8866e9d727e01affac8c42fd7f02272f7e2f42e183a1
kernel-rt-debug-core-4.18.0-372.26.1.rt7.183.el8_6.x86_64.rpm SHA-256: 44faff4a947fe8cb45b931baf90851642fdb79219116dc1237e73fc4fbdf07f1
kernel-rt-debug-debuginfo-4.18.0-372.26.1.rt7.183.el8_6.x86_64.rpm SHA-256: a22332b8b0971e9ac650bfdf77b3268ac032dbc22ef525287666688d50d8e5bf
kernel-rt-debug-devel-4.18.0-372.26.1.rt7.183.el8_6.x86_64.rpm SHA-256: 83ac7d5e2f7cc7b1349a7b90f9ba9339f770d57f7441faad4823c360ac0368db
kernel-rt-debug-kvm-4.18.0-372.26.1.rt7.183.el8_6.x86_64.rpm SHA-256: 5e352f28e95d49209f88205d3bb64e4f45ad2ed59d29c8c4c59c39569369c75b
kernel-rt-debug-modules-4.18.0-372.26.1.rt7.183.el8_6.x86_64.rpm SHA-256: 85670961749dbdeae7d8a2adb578109525be382bafd10c2331d39f25141f3814
kernel-rt-debug-modules-extra-4.18.0-372.26.1.rt7.183.el8_6.x86_64.rpm SHA-256: 1501e3d69d7055806387c1f1e72938ef96342626248e5939c0a70cdfc9a74e47
kernel-rt-debuginfo-4.18.0-372.26.1.rt7.183.el8_6.x86_64.rpm SHA-256: 0ed63adbccf694c0275061ebea5701774712511833a547e960ac3f1c4a4b9834
kernel-rt-debuginfo-common-x86_64-4.18.0-372.26.1.rt7.183.el8_6.x86_64.rpm SHA-256: 508c65696bbc17000224786c39d9acdef526d694d2e6dfccc1fb64764245dd5c
kernel-rt-devel-4.18.0-372.26.1.rt7.183.el8_6.x86_64.rpm SHA-256: d3140f9cbcd6460fe76171a242fa0e3f35950c3e8b7ebd1072705cb11281575a
kernel-rt-kvm-4.18.0-372.26.1.rt7.183.el8_6.x86_64.rpm SHA-256: d26529a441cbeb8a327f2de1aca7ae022c01824a0ed757edab006dc1cb51ae9c
kernel-rt-modules-4.18.0-372.26.1.rt7.183.el8_6.x86_64.rpm SHA-256: c363206f7dfbd5a0ec7deec70721cbde260805fda424dd16b77549251e5a045d
kernel-rt-modules-extra-4.18.0-372.26.1.rt7.183.el8_6.x86_64.rpm SHA-256: 473ba6ead546bee9e1ba14140639bababb215a811aaec0dca89dca1ae75018b9

Red Hat Enterprise Linux for Real Time - Telecommunications Update Service 8.8

SRPM
kernel-rt-4.18.0-372.26.1.rt7.183.el8_6.src.rpm SHA-256: e31b815de054fe18836f5719fe5f9b862b43eb6da83ee051a41afe8cedc7f9de
x86_64
kernel-rt-4.18.0-372.26.1.rt7.183.el8_6.x86_64.rpm SHA-256: 3ef86312db8b90f10379f17410e599ce62522e7778b4cab8fd19762307a18a88
kernel-rt-core-4.18.0-372.26.1.rt7.183.el8_6.x86_64.rpm SHA-256: eee6dc4af4dc02417c993cbc8be9bc86c2d5e04d58afbda910427543f49e2a17
kernel-rt-debug-4.18.0-372.26.1.rt7.183.el8_6.x86_64.rpm SHA-256: c77eede1bfc90d0e564b8866e9d727e01affac8c42fd7f02272f7e2f42e183a1
kernel-rt-debug-core-4.18.0-372.26.1.rt7.183.el8_6.x86_64.rpm SHA-256: 44faff4a947fe8cb45b931baf90851642fdb79219116dc1237e73fc4fbdf07f1
kernel-rt-debug-debuginfo-4.18.0-372.26.1.rt7.183.el8_6.x86_64.rpm SHA-256: a22332b8b0971e9ac650bfdf77b3268ac032dbc22ef525287666688d50d8e5bf
kernel-rt-debug-devel-4.18.0-372.26.1.rt7.183.el8_6.x86_64.rpm SHA-256: 83ac7d5e2f7cc7b1349a7b90f9ba9339f770d57f7441faad4823c360ac0368db
kernel-rt-debug-modules-4.18.0-372.26.1.rt7.183.el8_6.x86_64.rpm SHA-256: 85670961749dbdeae7d8a2adb578109525be382bafd10c2331d39f25141f3814
kernel-rt-debug-modules-extra-4.18.0-372.26.1.rt7.183.el8_6.x86_64.rpm SHA-256: 1501e3d69d7055806387c1f1e72938ef96342626248e5939c0a70cdfc9a74e47
kernel-rt-debuginfo-4.18.0-372.26.1.rt7.183.el8_6.x86_64.rpm SHA-256: 0ed63adbccf694c0275061ebea5701774712511833a547e960ac3f1c4a4b9834
kernel-rt-debuginfo-common-x86_64-4.18.0-372.26.1.rt7.183.el8_6.x86_64.rpm SHA-256: 508c65696bbc17000224786c39d9acdef526d694d2e6dfccc1fb64764245dd5c
kernel-rt-devel-4.18.0-372.26.1.rt7.183.el8_6.x86_64.rpm SHA-256: d3140f9cbcd6460fe76171a242fa0e3f35950c3e8b7ebd1072705cb11281575a
kernel-rt-modules-4.18.0-372.26.1.rt7.183.el8_6.x86_64.rpm SHA-256: c363206f7dfbd5a0ec7deec70721cbde260805fda424dd16b77549251e5a045d
kernel-rt-modules-extra-4.18.0-372.26.1.rt7.183.el8_6.x86_64.rpm SHA-256: 473ba6ead546bee9e1ba14140639bababb215a811aaec0dca89dca1ae75018b9

Red Hat Enterprise Linux for Real Time for NFV - Telecommunications Update Service 8.8

SRPM
kernel-rt-4.18.0-372.26.1.rt7.183.el8_6.src.rpm SHA-256: e31b815de054fe18836f5719fe5f9b862b43eb6da83ee051a41afe8cedc7f9de
x86_64
kernel-rt-4.18.0-372.26.1.rt7.183.el8_6.x86_64.rpm SHA-256: 3ef86312db8b90f10379f17410e599ce62522e7778b4cab8fd19762307a18a88
kernel-rt-core-4.18.0-372.26.1.rt7.183.el8_6.x86_64.rpm SHA-256: eee6dc4af4dc02417c993cbc8be9bc86c2d5e04d58afbda910427543f49e2a17
kernel-rt-debug-4.18.0-372.26.1.rt7.183.el8_6.x86_64.rpm SHA-256: c77eede1bfc90d0e564b8866e9d727e01affac8c42fd7f02272f7e2f42e183a1
kernel-rt-debug-core-4.18.0-372.26.1.rt7.183.el8_6.x86_64.rpm SHA-256: 44faff4a947fe8cb45b931baf90851642fdb79219116dc1237e73fc4fbdf07f1
kernel-rt-debug-debuginfo-4.18.0-372.26.1.rt7.183.el8_6.x86_64.rpm SHA-256: a22332b8b0971e9ac650bfdf77b3268ac032dbc22ef525287666688d50d8e5bf
kernel-rt-debug-devel-4.18.0-372.26.1.rt7.183.el8_6.x86_64.rpm SHA-256: 83ac7d5e2f7cc7b1349a7b90f9ba9339f770d57f7441faad4823c360ac0368db
kernel-rt-debug-kvm-4.18.0-372.26.1.rt7.183.el8_6.x86_64.rpm SHA-256: 5e352f28e95d49209f88205d3bb64e4f45ad2ed59d29c8c4c59c39569369c75b
kernel-rt-debug-modules-4.18.0-372.26.1.rt7.183.el8_6.x86_64.rpm SHA-256: 85670961749dbdeae7d8a2adb578109525be382bafd10c2331d39f25141f3814
kernel-rt-debug-modules-extra-4.18.0-372.26.1.rt7.183.el8_6.x86_64.rpm SHA-256: 1501e3d69d7055806387c1f1e72938ef96342626248e5939c0a70cdfc9a74e47
kernel-rt-debuginfo-4.18.0-372.26.1.rt7.183.el8_6.x86_64.rpm SHA-256: 0ed63adbccf694c0275061ebea5701774712511833a547e960ac3f1c4a4b9834
kernel-rt-debuginfo-common-x86_64-4.18.0-372.26.1.rt7.183.el8_6.x86_64.rpm SHA-256: 508c65696bbc17000224786c39d9acdef526d694d2e6dfccc1fb64764245dd5c
kernel-rt-devel-4.18.0-372.26.1.rt7.183.el8_6.x86_64.rpm SHA-256: d3140f9cbcd6460fe76171a242fa0e3f35950c3e8b7ebd1072705cb11281575a
kernel-rt-kvm-4.18.0-372.26.1.rt7.183.el8_6.x86_64.rpm SHA-256: d26529a441cbeb8a327f2de1aca7ae022c01824a0ed757edab006dc1cb51ae9c
kernel-rt-modules-4.18.0-372.26.1.rt7.183.el8_6.x86_64.rpm SHA-256: c363206f7dfbd5a0ec7deec70721cbde260805fda424dd16b77549251e5a045d
kernel-rt-modules-extra-4.18.0-372.26.1.rt7.183.el8_6.x86_64.rpm SHA-256: 473ba6ead546bee9e1ba14140639bababb215a811aaec0dca89dca1ae75018b9

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

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