RHSA-2025:19886 — Security Advisory

Red Hat Security Advisory: kernel security update

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Severity

Moderate

Red Hat Product Security

RHEL 9

Products

Official CSAF product identity

Published · November 6, 2025

Updated · November 2, 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: ethtool: check device is present when getting link settings (CVE-2024-46679)
kernel: NFS: Fix filehandle bounds checking in nfs_fh_to_dentry() (CVE-2025-39730)
kernel: mm: fix zswap writeback race condition (CVE-2023-53178)
kernel: pstore/ram: Check start of empty przs during init (CVE-2023-53331)
kernel: fs: fix UAF/GPF bug in nilfs_mdt_destroy (CVE-2022-50367)
kernel: mm: kmem: fix a NULL pointer dereference in obj_stock_flush_required() (CVE-2023-53401)

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.