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Red Hat: RHSA-2022:5937-01 Moderate: Kernel Security Update

red hat
Calendar Grey August 9, 2022
Dist Redhat Esm H88
New kernel patch released for Red Hat Enterprise Linux 7, resolving certain security vulnerabilities and fixing various bugs. Find out more!
An update for kernel is now available for Red Hat Enterprise Linux 7

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.

Summary

The kernel packages contain the Linux kernel, the core of any Linux operating system.
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):
* SolarFlare sfc spurious TX completion (BZ#1793280)
* Page allocation failure on cryptsetup open (BZ#2072970)
* The kernel-rt crashes where one task is indefinitely looping in __start_cfs_bandwidth() with the cfs_b->lock spinlock being held (BZ#2077346)
* While using PTimekeeper the qede driver produces excessive log messages (BZ#2080646)
* The kernel crashes due to a GPF happens in mutex_spin_on_owner(). The known RDMA/cma bug that was introduced with a patch from upstream commit 722c7b2bfead is the possible cause. (BZ#2085425)
* Running LTP testcase creat09 fails showing related to 'cve-2018-13405' (BZ#2089360)
* Crash when releasing inode which was on unmouted superblock (BZ#2096884)

Topics%20covered

Topics Covered

security advisory moderate security issue bug fix kernel threat mitigation red hat enterprise linux

References

https://access.redhat.com/security/cve/CVE-2022-21123 https://access.redhat.com/security/cve/CVE-2022-21125 https://access.redhat.com/security/cve/CVE-2022-21166 https://access.redhat.com/security/updates/classification/#moderate

Package List

Red Hat Enterprise Linux Client (v. 7):
Source: kernel-3.10.0-1160.76.1.el7.src.rpm
noarch: kernel-abi-whitelists-3.10.0-1160.76.1.el7.noarch.rpm kernel-doc-3.10.0-1160.76.1.el7.noarch.rpm
x86_64: bpftool-3.10.0-1160.76.1.el7.x86_64.rpm bpftool-debuginfo-3.10.0-1160.76.1.el7.x86_64.rpm kernel-3.10.0-1160.76.1.el7.x86_64.rpm kernel-debug-3.10.0-1160.76.1.el7.x86_64.rpm kernel-debug-debuginfo-3.10.0-1160.76.1.el7.x86_64.rpm kernel-debug-devel-3.10.0-1160.76.1.el7.x86_64.rpm kernel-debuginfo-3.10.0-1160.76.1.el7.x86_64.rpm kernel-debuginfo-common-x86_64-3.10.0-1160.76.1.el7.x86_64.rpm kernel-devel-3.10.0-1160.76.1.el7.x86_64.rpm kernel-headers-3.10.0-1160.76.1.el7.x86_64.rpm kernel-tools-3.10.0-1160.76.1.el7.x86_64.rpm kernel-tools-debuginfo-3.10.0-1160.76.1.el7.x86_64.rpm kernel-tools-libs-3.10.0-1160.76.1.el7.x86_64.rpm perf-3.10.0-1160.76.1.el7.x86_64.rpm perf-debuginfo-3.10.0-1160.76.1.el7.x86_64.rpm python-perf-3.10.0-1160.76.1.el7.x86_64.rpm python-perf-debuginfo-3.10.0-1160.76.1.el7.x86_64.rpm
Red Hat Enterprise Linux Client Optional (v. 7):
x86_64: bpftool-debuginfo-3.10.0-1160.76.1.el7.x86_64.rpm kernel-debug-debuginfo-3.10.0-1160.76.1.el7.x86_64.rpm kernel-debuginfo-3.10.0-1160.76.1.el7.x86_64.rpm kernel-debuginfo-common-x86_64-3.10.0-1160.76.1.el7.x86_64.rpm

Read the Full Advisory


Advisory ID: RHSA-2022:5937-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2022:5937
Issue date: 2022-08-09

Topic

An update for kernel is now available for Red Hat Enterprise Linux 7.Red Hat Product Security has rated this update as having a security impactof Moderate. A Common Vulnerability Scoring System (CVSS) base score, whichgives a detailed severity rating, is available for each vulnerability fromthe CVE link(s) in the References section.

Topics%20covered

Topics Covered

security advisory moderate security issue bug fix kernel threat mitigation red hat enterprise linux

Relevant Releases Architectures

Red Hat Enterprise Linux Client (v. 7) - noarch, x86_64

Red Hat Enterprise Linux Client Optional (v. 7) - x86_64

Red Hat Enterprise Linux ComputeNode (v. 7) - noarch, x86_64

Red Hat Enterprise Linux ComputeNode Optional (v. 7) - x86_64

Red Hat Enterprise Linux Server (v. 7) - noarch, ppc64, ppc64le, s390x, x86_64

Red Hat Enterprise Linux Server Optional (v. 7) - ppc64, ppc64le, x86_64

Red Hat Enterprise Linux Workstation (v. 7) - noarch, x86_64

Red Hat Enterprise Linux Workstation Optional (v. 7) - x86_64

Bugs Fixed

2090237 - CVE-2022-21123 hw: cpu: Incomplete cleanup of multi-core shared buffers (aka SBDR)

2090240 - CVE-2022-21125 hw: cpu: Incomplete cleanup of microarchitectural fill buffers (aka SBDS)

2090241 - CVE-2022-21166 hw: cpu: Incomplete cleanup in specific special register write operations (aka DRPW)

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