RLSA-2026:77500

Security

Mirrored from RHSA-2026:77500

Issued at: 2026-10-09

Updated at: 2026-10-09

Advisory content derived from Red Hat RHSA-2026:77500, © 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: vsock/vmci: fix UAF when peer resets connection during handshake (CVE-2026-64115)

* kernel: packet: use consistent hard_header_len in non-ring send paths ()

* kernel: packet: use consistent hard_header_len in non-ring send paths (CVE-2026-74582)

* kernel: svcrdma: Reject inline replies that overflow the pull-up buffer (CVE-2026-89530)

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

2502593

2519475

2532218

CVEs

CVE-2026-64115

CVE-2026-74582

CVE-2026-89530

Affected packages

Rocky Linux 8 x86_64 - NFV

kernel-rt-0:4.18.0-553.172.1.rt7.513.el8_10.src.rpm

kernel-rt-0:4.18.0-553.172.1.rt7.513.el8_10.x86_64.rpm

kernel-rt-core-0:4.18.0-553.172.1.rt7.513.el8_10.x86_64.rpm

kernel-rt-debug-0:4.18.0-553.172.1.rt7.513.el8_10.x86_64.rpm

kernel-rt-debug-core-0:4.18.0-553.172.1.rt7.513.el8_10.x86_64.rpm

kernel-rt-debug-debuginfo-0:4.18.0-553.172.1.rt7.513.el8_10.x86_64.rpm

kernel-rt-debug-devel-0:4.18.0-553.172.1.rt7.513.el8_10.x86_64.rpm

kernel-rt-debuginfo-0:4.18.0-553.172.1.rt7.513.el8_10.x86_64.rpm

kernel-rt-debuginfo-common-x86_64-0:4.18.0-553.172.1.rt7.513.el8_10.x86_64.rpm

kernel-rt-debug-kvm-0:4.18.0-553.172.1.rt7.513.el8_10.x86_64.rpm

kernel-rt-debug-modules-0:4.18.0-553.172.1.rt7.513.el8_10.x86_64.rpm

kernel-rt-debug-modules-extra-0:4.18.0-553.172.1.rt7.513.el8_10.x86_64.rpm

kernel-rt-devel-0:4.18.0-553.172.1.rt7.513.el8_10.x86_64.rpm

kernel-rt-kvm-0:4.18.0-553.172.1.rt7.513.el8_10.x86_64.rpm

kernel-rt-modules-0:4.18.0-553.172.1.rt7.513.el8_10.x86_64.rpm

kernel-rt-modules-extra-0:4.18.0-553.172.1.rt7.513.el8_10.x86_64.rpm

Rocky Linux 8 x86_64 - RT