RHSA-2025:14094 — 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 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-rt packages provide the Real Time Linux Kernel, which enables fine-tuning for systems with extremely high determinism requirements.

Security Fix(es):

• kernel: padata: fix UAF in padata_reorder (CVE-2025-21727)

• kernel: x86/microcode/AMD: Fix out-of-bounds on systems with CPU-less NUMA nodes (CVE-2025-21991)

• kernel: memstick: rtsx_usb_ms: Fix slab-use-after-free in rtsx_usb_ms_drv_remove (CVE-2025-22020)

• kernel: net_sched: hfsc: Fix a UAF vulnerability in class handling (CVE-2025-37797)

• kernel: selinux: Add boundary check in put_entry() (CVE-2022-50200)

• kernel: ext4: avoid resizing to a partial cluster size (CVE-2022-50020)

• kernel: drivers:md:fix a potential use-after-free bug (CVE-2022-50022)

• kernel: net: ch9200: fix uninitialised access during mii_nway_restart (CVE-2025-38086)

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.