RHSA-2026:6954 — Security Advisory

An update for kernel is now available for Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions and Red Hat Enterprise Linux 8.8 Telecommunications Update Service.

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.

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

Security Fix(es):

• kernel: Linux kernel: Use-After-Free vulnerability in ATM subsystem (CVE-2025-38180)

• kernel: Linux kernel:A use-after-free in bridge multicast in br_multicast_port_ctx_init (CVE-2025-38248)

• kernel: smc: Fix use-after-free in __pnet_find_base_ndev() (CVE-2025-40064)

• kernel: smc: Use __sk_dst_get() and dst_dev_rcu() in smc_clc_prfx_match() (CVE-2025-40168)

• kernel: macvlan: fix possible UAF in macvlan_forward_source() (CVE-2026-23001)

• kernel: macvlan: fix error recovery in macvlan_common_newlink() (CVE-2026-23209)

• kernel: Linux kernel (qla2xxx): Double free vulnerability leads to denial of service and potential privilege escalation. (CVE-2025-71238)

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.