RHSA-2025:14691 — Security Advisory

An update for kernel-rt is now available for Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions.

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-rt packages provide the Real Time Linux Kernel, which enables fine-tuning for systems with extremely high determinism requirements.

Security Fix(es):

• kernel: bpf, test_run: Fix use-after-free issue in eth_skb_pkt_type() (CVE-2025-21867)

• kernel: crypto: algif_hash - fix double free in hash_accept (CVE-2025-38079)

• kernel: ftrace: Fix NULL pointer dereference in is_ftrace_trampoline when ftrace is dead (CVE-2022-49977)

• kernel: sch_hfsc: make hfsc_qlen_notify() idempotent (CVE-2025-38177)

• kernel: net/sched: Always pass notifications when child class becomes empty (CVE-2025-38350)

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.