RHSA-2026:70483 — Security Advisory

An update for kernel-rt is now available for Red Hat Enterprise Linux 9.2 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: fanotify: fix false positive on permission events (CVE-2026-46150)

• kernel: netfilter: nat: use kfree_rcu to release ops (CVE-2026-53000)

• kernel: tipc: fix double-free in tipc_buf_append() (CVE-2026-52993)

• kernel: scsi: target: iscsi: Fix CRC overread and double-free in iscsit_handle_text_cmd() (CVE-2026-63888)

• kernel: scsi: target: iscsi: Bound iscsi_encode_text_output() appends to rsp_buf (CVE-2026-63887)

• kernel: Kernel: Remote out-of-bounds write in RDMA/siw (CVE-2026-64268)

• kernel: sctp: don't free the ASCONF's own transport in DEL-IP processing (CVE-2026-64564)

Bug Fix(es) and Enhancement(s):

• WARNING: CPU: 5 PID: 20420 at net/core/stream.c:206 sk_stream_kill_queues+0xd2/0xe0 (JIRA:RHEL-256439)

• Backport 3e684903a857 - kpatch transition stalls on KVM vCPU threads running guest DPDK PMD [9.2.z] (JIRA:RHEL-258954)

• Backport request 747f7a2901174 [rhel-9.2.z] (JIRA:RHEL-259005)

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.