RHSA-2025:4509 — Security Advisory

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 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.

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

Security Fix(es):

• kernel: crash due to a missing check for leb_size (CVE-2024-25739)

• kernel: wifi: iwlwifi: mvm: ensure offloading TID queue exists (CVE-2024-27056)

• kernel: mlxsw: spectrum_acl_tcam: Fix possible use-after-free during activity update (CVE-2024-35855)

• kernel: hwmon: (w83791d) Fix NULL pointer dereference by removing unnecessary structure field (CVE-2021-47386)

• kernel: SUNRPC: Fix RPC client cleaned up the freed pipefs dentries (CVE-2023-52803)

• kernel: ipvs: properly dereference pe in ip_vs_add_service (CVE-2024-42322)

• kernel: devres: Fix memory leakage caused by driver API devm_free_percpu() (CVE-2024-43871)

• kernel: mm: call the security_mmap_file() LSM hook in remap_file_pages() (CVE-2024-47745)

• kernel: nvme-tcp: fix potential memory corruption in nvme_tcp_recv_pdu() (CVE-2025-21927)

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.