RLSA-2026:64770

Security

Mirrored from RHSA-2026:64770

Issued at: 2026-09-09

Updated at: 2026-09-10

Advisory content derived from Red Hat RHSA-2026:64770, © Red Hat, Inc., used under CC BY 4.0, with modifications.

Synopsis

Important: kernel-rt security update

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: crypto: pcrypt - Fix handling of MAY_BACKLOG requests (CVE-2026-43493)

* kernel: netfilter: conntrack: remove sprintf usage (CVE-2026-53002)

* kernel: netfilter: synproxy: refresh tcphdr after skb_ensure_writable (CVE-2026-64007)

* kernel: rhashtable: clear stale iter->p on table restart (CVE-2026-64563)

* kernel: smb: client: validate DFS referral PathConsumed (CVE-2026-68343)

* kernel: nvmet-rdma: handle inline data with a nonzero offset (CVE-2026-72129)

* kernel: net: bridge: stop fast-leave after deleting a port group (CVE-2026-74480)

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.

Affected products

Rocky Linux 8 x86_64

Fixes

2479812

2492329

2502361

2510892

2513373

2516731

2517046

CVEs

CVE-2026-43493

CVE-2026-53002

CVE-2026-64007

CVE-2026-64563

CVE-2026-68343

CVE-2026-72129

CVE-2026-74480

Affected packages

Rocky Linux 8 x86_64 - NFV

kernel-rt-0:4.18.0-553.160.1.rt7.501.el8_10.src.rpm

kernel-rt-0:4.18.0-553.160.1.rt7.501.el8_10.x86_64.rpm

kernel-rt-core-0:4.18.0-553.160.1.rt7.501.el8_10.x86_64.rpm

kernel-rt-debug-0:4.18.0-553.160.1.rt7.501.el8_10.x86_64.rpm

kernel-rt-debug-core-0:4.18.0-553.160.1.rt7.501.el8_10.x86_64.rpm

kernel-rt-debug-debuginfo-0:4.18.0-553.160.1.rt7.501.el8_10.x86_64.rpm

kernel-rt-debug-devel-0:4.18.0-553.160.1.rt7.501.el8_10.x86_64.rpm

kernel-rt-debuginfo-0:4.18.0-553.160.1.rt7.501.el8_10.x86_64.rpm

kernel-rt-debuginfo-common-x86_64-0:4.18.0-553.160.1.rt7.501.el8_10.x86_64.rpm

kernel-rt-debug-kvm-0:4.18.0-553.160.1.rt7.501.el8_10.x86_64.rpm

kernel-rt-debug-modules-0:4.18.0-553.160.1.rt7.501.el8_10.x86_64.rpm

kernel-rt-debug-modules-extra-0:4.18.0-553.160.1.rt7.501.el8_10.x86_64.rpm

kernel-rt-devel-0:4.18.0-553.160.1.rt7.501.el8_10.x86_64.rpm

kernel-rt-kvm-0:4.18.0-553.160.1.rt7.501.el8_10.x86_64.rpm

kernel-rt-modules-0:4.18.0-553.160.1.rt7.501.el8_10.x86_64.rpm

kernel-rt-modules-extra-0:4.18.0-553.160.1.rt7.501.el8_10.x86_64.rpm

Rocky Linux 8 x86_64 - RT