RHSA-2024:3414 — Security Advisory

Red Hat Security Advisory: kernel-rt security and bug fix update

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Severity

Important

Red Hat Product Security

RHEL 9

Products

Official CSAF product identity

Published · May 28, 2024

Updated · November 1, 2026

Topic

An update for kernel-rt is now available for Red Hat Enterprise Linux 9.0 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.

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):

kernel: Marvin vulnerability side-channel leakage in the RSA decryption operation (CVE-2023-6240)
kernel: nf_tables: use-after-free vulnerability in the nft_verdict_init() function (CVE-2024-1086)
kernel: mlxsw: spectrum_acl_tcam: Fix stack corruption (CVE-2024-26586)
kernel: netfilter: nftables: exthdr: fix 4-byte stack OOB write (CVE-2023-52628)
kernel: Use-after-free in nft_verdict_dump due to a race between set GC and transaction (CVE-2023-4244)
kernel: inactive elements in nft_pipapo_walk (CVE-2023-6817)

Bug Fix(es):

kernel-rt: update RT source tree to the latest RHEL-9.0.z Batch 17 (JIRA:RHEL-32673)