RHSA-2025:15016 — 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: s390/ptrace: handle setting of fpc register correctly (CVE-2023-52598)

• kernel: USB: core: Fix deadlock in port "disable" sysfs attribute (CVE-2024-26933)

• kernel: powerpc/powernv: Add a null pointer check in opal_event_init() (CVE-2023-52686)

• kernel: mmc: sdio: fix possible resource leaks in some error paths (CVE-2023-52730)

• kernel: USB: core: Fix access violation during port device removal (CVE-2024-36896)

• kernel: pinctrl: fix deadlock in create_pinctrl() when handling -EPROBE_DEFER (CVE-2024-42090)

• 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: 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.