RHSA-2025:13962 — Security Advisory

An update for kernel is now available for Red Hat Enterprise Linux 9.

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

• microcode_ctl: From CVEorg collector (CVE-2024-28956)

• kernel: mm/hugetlb: unshare page tables during VMA split, not before (CVE-2025-38084)

• kernel: mm/hugetlb: fix huge_pmd_unshare() vs GUP-fast race (CVE-2025-38085)

• kernel: net: fix udp gso skb_segment after pull from frag_list (CVE-2025-38124)

• kernel: wifi: rtw88: fix the 'para' buffer size to avoid reading out of bounds (CVE-2025-38159)

• kernel: Bluetooth: hci_core: Fix use-after-free in vhci_flush() (CVE-2025-38250)

• kernel: i2c/designware: Fix an initialization issue (CVE-2025-38380)

• kernel: tls: always refresh the queue when reading sock (CVE-2025-38471)

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.