RHSA-2026:7003 — Security Advisory

Red Hat Security Advisory: kernel security update

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Severity

Moderate

Red Hat Product Security

RHEL 8

Products

Official CSAF product identity

Published · April 8, 2026

Updated · November 1, 2026

Topic

An update for kernel is now available for Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support and Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On.

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 packages contain the Linux kernel, the core of any Linux operating system.

Security Fix(es):

kernel: Linux kernel: Device Mapper RAID out-of-bounds access (CVE-2022-49674)
kernel: Linux kernel: Use-After-Free vulnerability in ATM subsystem (CVE-2025-38180)
kernel: Linux kernel: integer overflow and information disclosure via undefined shift operation in drm/amdkfd (CVE-2021-4460)
kernel: sctp: avoid NULL dereference when chunk data buffer is missing (CVE-2025-40240)
kernel: ipv6: BUG() in pskb_expand_head() as part of calipso_skbuff_setattr() (CVE-2025-71085)
kernel: macvlan: fix error recovery in macvlan_common_newlink() (CVE-2026-23209)

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.