RLSA-2026:26427

Synopsis

Important: kernel security update

Description

The kernel packages contain the Linux kernel, the core of any Linux operating system.

Security Fix(es):

* kernel: mptcp: fix slab-use-after-free in __inet_lookup_established (CVE-2026-31669)

* kernel: xen/privcmd: fix double free via VMA splitting (CVE-2026-31787)

* kernel: Buffer overflow in drivers/xen/sys-hypervisor.c (CVE-2026-31786)

* kernel: wifi: brcmfmac: validate bsscfg indices in IF events (CVE-2026-43110)

* kernel: netfilter: flowtable: strictly check for maximum number of actions (CVE-2026-43329)

* kernel: Bluetooth: hci_event: fix potential UAF in SSP passkey handlers (CVE-2026-46056)

* kernel: wifi: mac80211: drop stray 'static' from fast-RX rx_result (CVE-2026-46152)

* kernel: wifi: mac80211: remove station if connection prep fails (CVE-2026-46125)

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 aarch64 Rocky Linux 8 x86_64

Fixes

2461503 2464092 2464096 2467014 2468124 2482181 2482563 2482608

CVEs

CVE-2026-31669 CVE-2026-31786 CVE-2026-31787 CVE-2026-43110 CVE-2026-43329 CVE-2026-46056 CVE-2026-46125 CVE-2026-46152

Affected packages

Rocky Linux 8 aarch64 - BaseOS

bpftool-0:4.18.0-553.134.1.el8_10.aarch64.rpm bpftool-debuginfo-0:4.18.0-553.134.1.el8_10.aarch64.rpm kernel-0:4.18.0-553.134.1.el8_10.aarch64.rpm kernel-0:4.18.0-553.134.1.el8_10.src.rpm kernel-abi-stablelists-0:4.18.0-553.134.1.el8_10.noarch.rpm kernel-core-0:4.18.0-553.134.1.el8_10.aarch64.rpm kernel-debug-0:4.18.0-553.134.1.el8_10.aarch64.rpm kernel-debug-core-0:4.18.0-553.134.1.el8_10.aarch64.rpm kernel-debug-debuginfo-0:4.18.0-553.134.1.el8_10.aarch64.rpm kernel-debug-devel-0:4.18.0-553.134.1.el8_10.aarch64.rpm kernel-debuginfo-0:4.18.0-553.134.1.el8_10.aarch64.rpm kernel-debuginfo-common-aarch64-0:4.18.0-553.134.1.el8_10.aarch64.rpm kernel-debug-modules-0:4.18.0-553.134.1.el8_10.aarch64.rpm kernel-debug-modules-extra-0:4.18.0-553.134.1.el8_10.aarch64.rpm kernel-devel-0:4.18.0-553.134.1.el8_10.aarch64.rpm kernel-doc-0:4.18.0-553.134.1.el8_10.noarch.rpm kernel-modules-0:4.18.0-553.134.1.el8_10.aarch64.rpm kernel-modules-extra-0:4.18.0-553.134.1.el8_10.aarch64.rpm kernel-tools-0:4.18.0-553.134.1.el8_10.aarch64.rpm kernel-tools-debuginfo-0:4.18.0-553.134.1.el8_10.aarch64.rpm kernel-tools-libs-0:4.18.0-553.134.1.el8_10.aarch64.rpm perf-0:4.18.0-553.134.1.el8_10.aarch64.rpm perf-debuginfo-0:4.18.0-553.134.1.el8_10.aarch64.rpm python3-perf-0:4.18.0-553.134.1.el8_10.aarch64.rpm python3-perf-debuginfo-0:4.18.0-553.134.1.el8_10.aarch64.rpm

Rocky Linux 8 x86_64 - BaseOS

bpftool-0:4.18.0-553.134.1.el8_10.x86_64.rpm bpftool-debuginfo-0:4.18.0-553.134.1.el8_10.x86_64.rpm kernel-0:4.18.0-553.134.1.el8_10.src.rpm kernel-0:4.18.0-553.134.1.el8_10.x86_64.rpm kernel-abi-stablelists-0:4.18.0-553.134.1.el8_10.noarch.rpm kernel-core-0:4.18.0-553.134.1.el8_10.x86_64.rpm kernel-debug-0:4.18.0-553.134.1.el8_10.x86_64.rpm kernel-debug-core-0:4.18.0-553.134.1.el8_10.x86_64.rpm kernel-debug-debuginfo-0:4.18.0-553.134.1.el8_10.x86_64.rpm kernel-debug-devel-0:4.18.0-553.134.1.el8_10.x86_64.rpm kernel-debuginfo-0:4.18.0-553.134.1.el8_10.x86_64.rpm kernel-debuginfo-common-x86_64-0:4.18.0-553.134.1.el8_10.x86_64.rpm kernel-debug-modules-0:4.18.0-553.134.1.el8_10.x86_64.rpm kernel-debug-modules-extra-0:4.18.0-553.134.1.el8_10.x86_64.rpm kernel-devel-0:4.18.0-553.134.1.el8_10.x86_64.rpm kernel-doc-0:4.18.0-553.134.1.el8_10.noarch.rpm kernel-modules-0:4.18.0-553.134.1.el8_10.x86_64.rpm kernel-modules-extra-0:4.18.0-553.134.1.el8_10.x86_64.rpm kernel-tools-0:4.18.0-553.134.1.el8_10.x86_64.rpm kernel-tools-debuginfo-0:4.18.0-553.134.1.el8_10.x86_64.rpm kernel-tools-libs-0:4.18.0-553.134.1.el8_10.x86_64.rpm perf-0:4.18.0-553.134.1.el8_10.x86_64.rpm perf-debuginfo-0:4.18.0-553.134.1.el8_10.x86_64.rpm python3-perf-0:4.18.0-553.134.1.el8_10.x86_64.rpm python3-perf-debuginfo-0:4.18.0-553.134.1.el8_10.x86_64.rpm

Rocky Linux 8 aarch64 - PowerTools

kernel-tools-libs-devel-0:4.18.0-553.134.1.el8_10.aarch64.rpm

Rocky Linux 8 x86_64 - PowerTools

kernel-tools-libs-devel-0:4.18.0-553.134.1.el8_10.x86_64.rpm