RHSA-2026:0532 — Security Advisory

An update for kernel is now available for Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions and Red Hat Enterprise Linux 8.8 Telecommunications Update Service.

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: nfsd: handle get_client_locked() failure in nfsd4_setclientid_confirm() (CVE-2025-38724)

• kernel: smb: client: fix race with concurrent opens in rename(2) (CVE-2025-39825)

• kernel: nbd: fix incomplete validation of ioctl arg (CVE-2023-53513)

• kernel: NFSD: Avoid calling OPDESC() with ops->opnum == OP_ILLEGAL (CVE-2023-53680)

• kernel: RDMA/rxe: Fix mr->map double free (CVE-2022-50543)

• kernel: scsi: ses: Fix possible desc_ptr out-of-bounds accesses (CVE-2023-53675)

• kernel: ipv6: Fix out-of-bounds access in ipv6_find_tlv() (CVE-2023-53705)

• kernel: libceph: fix potential use-after-free in have_mon_and_osd_map() (CVE-2025-68285)

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.