RHSA-2026:74132 — Security Advisory
Red Hat Security Advisory: kernel-rt security, bug fix, and enhancement update
Severity
ModerateRed Hat Product Security
Products
Official CSAF product identity
Published · October 1, 2026
Updated · October 30, 2026
Topic
An update for kernel-rt is now available for Red Hat Enterprise Linux 8.
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.
Description
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: RDMA/siw: Reject MPA FPDU length underflow before signed receive math (CVE-2026-64102)
-
kernel: vmxnet3: fix BUG_ON in vmxnet3_get_hdr_len() for Geneve packets (CVE-2026-68299)
-
kernel: net/liquidio: drop cached VF pci_dev LUT (CVE-2026-72329)
-
kernel: dm-integrity: don't increment hash_offset twice (CVE-2026-72099)
Bug Fix(es) and Enhancement(s):
-
[RHEL 8.10] "kernel BUG at lib/list_debug.c:28!": list_add corruption in register_trace_event RHEL 8.10 (JIRA:RHEL-214136)
-
request_key_auth use-after-free on every request-key upcall since 4.18.0-553.165.1 (regression from CVE-2026-63823 backport) (JIRA:RHEL-270349)
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.