RHSA-2026:6310 — Security Advisory
Red Hat Security Advisory: kernel security update
Severity
ModerateRed Hat Product Security
Products
Official CSAF product identity
Published · April 1, 2026
Updated · October 29, 2026
Topic
An update for kernel is now available for Red Hat Enterprise Linux 9.4 Extended Update Support.
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: Use-after-free in BPF sockmap can lead to denial of service and privilege escalation (CVE-2025-38154)
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kernel: Linux kernel: Use-After-Free vulnerability in ATM subsystem (CVE-2025-38180)
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kernel: macvlan: fix possible UAF in macvlan_forward_source() (CVE-2026-23001)
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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.