RHSA-2025:15658 — Security Advisory

An update for kernel-rt is now available for Red Hat Enterprise Linux 9.0 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: ext4: use-after-free in ext4_xattr_set_entry() (CVE-2023-2513)

• kernel: drm/vkms: Fix use after free and double free on init error (CVE-2025-22097)

• kernel: udp: Fix memory accounting leak. (CVE-2025-22058)

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

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

• 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: posix-cpu-timers: fix race between handle_posix_cpu_timers() and posix_cpu_timer_del() (CVE-2025-38352)

• kernel: tipc: Fix use-after-free in tipc_conn_close() (CVE-2025-38464)

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.