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Red Hat Enterprise Linux 8 RHSA-2023-3847-01 Moderate Kernel Bug Fix

red hat
Calendar Grey June 27, 2023
Dist Redhat Esm H88
Significant system stability patch released for Red Hat Enterprise Linux 8, introducing essential improvements and security measures.
An update for kernel is now available for Red Hat Enterprise Linux 8

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):
* kernel: tls: race condition in do_tls_getsockopt may lead to use-after-free or NULL pointer dereference (CVE-2023-28466)
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):
* RPL-P IOTG/RPL-S IOTG: cpu frequency issues (BZ#2179332)
* iscsi target deadlocks when the same host acts as an initiator to itself (i.e. connects via 127.0.0.1) (BZ#2182092)
* HPEMC RHEL 8 REGRESSION: acpi-cpufreq: Skip initialization if a cpufreq driver exists (BZ#2186305)
* kernel[-rt]: task deadline_test:2526 blocked for more than 600 seconds. (BZ#2188623)
* Dying percpu kworkers cause issues on isolated CPUs [rhel-8] (BZ#2189595)
* block layer: cherry pick recent upstream fixes (up to v6.3-rc1) for 8.9 (BZ#2193236)
* xfs: deadlock in xfs_btree_split_worker (BZ#2196390)
* RHEL 8.9 hwpoison: data loss when memory error occurs on hugetlb pagecache (BZ#2196665)
* Intel E810 card unable to create a MACVLAN on interface already configured as SRIOV (BZ#2203214)
* mlxsw: kselftest case - -usr-libexec-kselftests-drivers-net-mlxsw-devlink-trap-policer-sh trigger call trace (BZ#2207564)
* Invalid character detected by rpminspect in Documentation/translations/zh_CN/process/magic-number.rst (BZ#2208284)
Enhancement(s):
* Intel 8.9 FEAT SPR power: Intel SST SNC4 support (BZ#2185604)

References

https://access.redhat.com/security/cve/CVE-2023-28466 https://access.redhat.com/security/updates/classification/#moderate

Package List

Red Hat Enterprise Linux BaseOS (v. 8):
Source: kernel-4.18.0-477.15.1.el8_8.src.rpm
aarch64: bpftool-4.18.0-477.15.1.el8_8.aarch64.rpm bpftool-debuginfo-4.18.0-477.15.1.el8_8.aarch64.rpm kernel-4.18.0-477.15.1.el8_8.aarch64.rpm kernel-core-4.18.0-477.15.1.el8_8.aarch64.rpm kernel-cross-headers-4.18.0-477.15.1.el8_8.aarch64.rpm kernel-debug-4.18.0-477.15.1.el8_8.aarch64.rpm kernel-debug-core-4.18.0-477.15.1.el8_8.aarch64.rpm kernel-debug-debuginfo-4.18.0-477.15.1.el8_8.aarch64.rpm kernel-debug-devel-4.18.0-477.15.1.el8_8.aarch64.rpm kernel-debug-modules-4.18.0-477.15.1.el8_8.aarch64.rpm kernel-debug-modules-extra-4.18.0-477.15.1.el8_8.aarch64.rpm kernel-debuginfo-4.18.0-477.15.1.el8_8.aarch64.rpm kernel-debuginfo-common-aarch64-4.18.0-477.15.1.el8_8.aarch64.rpm kernel-devel-4.18.0-477.15.1.el8_8.aarch64.rpm kernel-headers-4.18.0-477.15.1.el8_8.aarch64.rpm kernel-modules-4.18.0-477.15.1.el8_8.aarch64.rpm kernel-modules-extra-4.18.0-477.15.1.el8_8.aarch64.rpm kernel-tools-4.18.0-477.15.1.el8_8.aarch64.rpm kernel-tools-debuginfo-4.18.0-477.15.1.el8_8.aarch64.rpm kernel-tools-libs-4.18.0-477.15.1.el8_8.aarch64.rpm perf-4.18.0-477.15.1.el8_8.aarch64.rpm perf-debuginfo-4.18.0-477.15.1.el8_8.aarch64.rpm python3-perf-4.18.0-477.15.1.el8_8.aarch64.rpm

Read the Full Advisory


Advisory ID: RHSA-2023:3847-01
Product: Red Hat Enterprise Linux
Issue date: 2023-06-27

Topic

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 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.

Relevant Releases Architectures

Red Hat Enterprise Linux BaseOS (v. 8) - aarch64, noarch, ppc64le, s390x, x86_64

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

Bugs Fixed

2179000 - CVE-2023-28466 kernel: tls: race condition in do_tls_getsockopt may lead to use-after-free or NULL pointer dereference

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