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RLSA-2026:66355

Security Mirrored from RHSA-2026:66355
Issued at: 2026-09-11
Updated at: 2026-09-12

Advisory content derived from Red Hat RHSA-2026:66355, © Red Hat, Inc., used under CC BY 4.0, with modifications.

Synopsis

Important: kernel security update



Description

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

Security Fix(es):

* 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 10 aarch64 Rocky Linux 10 ppc64le Rocky Linux 10 riscv64 Rocky Linux 10 s390x Rocky Linux 10 x86_64

Fixes

2517046

CVEs

CVE-2026-74480

Affected packages

Rocky Linux 10 aarch64 - RT

kernel-rt-64k-debug-modules-extra-0:6.12.0-211.54.1.el10_2.aarch64.rpm kernel-rt-modules-core-0:6.12.0-211.54.1.el10_2.aarch64.rpm kernel-rt-64k-modules-core-0:6.12.0-211.54.1.el10_2.aarch64.rpm kernel-rt-64k-debug-0:6.12.0-211.54.1.el10_2.aarch64.rpm kernel-rt-debug-devel-0:6.12.0-211.54.1.el10_2.aarch64.rpm kernel-rt-64k-debug-core-0:6.12.0-211.54.1.el10_2.aarch64.rpm kernel-rt-debug-modules-extra-0:6.12.0-211.54.1.el10_2.aarch64.rpm kernel-rt-modules-0:6.12.0-211.54.1.el10_2.aarch64.rpm kernel-rt-64k-debug-modules-core-0:6.12.0-211.54.1.el10_2.aarch64.rpm kernel-rt-64k-debug-debuginfo-0:6.12.0-211.54.1.el10_2.aarch64.rpm kernel-rt-debug-debuginfo-0:6.12.0-211.54.1.el10_2.aarch64.rpm kernel-rt-64k-0:6.12.0-211.54.1.el10_2.aarch64.rpm kernel-rt-debug-modules-0:6.12.0-211.54.1.el10_2.aarch64.rpm kernel-rt-modules-extra-0:6.12.0-211.54.1.el10_2.aarch64.rpm kernel-rt-64k-modules-0:6.12.0-211.54.1.el10_2.aarch64.rpm kernel-rt-debug-modules-core-0:6.12.0-211.54.1.el10_2.aarch64.rpm kernel-rt-0:6.12.0-211.54.1.el10_2.aarch64.rpm kernel-rt-debuginfo-0:6.12.0-211.54.1.el10_2.aarch64.rpm kernel-rt-64k-debug-modules-0:6.12.0-211.54.1.el10_2.aarch64.rpm kernel-rt-core-0:6.12.0-211.54.1.el10_2.aarch64.rpm kernel-rt-64k-modules-extra-0:6.12.0-211.54.1.el10_2.aarch64.rpm kernel-rt-64k-core-0:6.12.0-211.54.1.el10_2.aarch64.rpm kernel-rt-debug-0:6.12.0-211.54.1.el10_2.aarch64.rpm kernel-rt-64k-devel-0:6.12.0-211.54.1.el10_2.aarch64.rpm kernel-rt-devel-0:6.12.0-211.54.1.el10_2.aarch64.rpm kernel-rt-64k-debuginfo-0:6.12.0-211.54.1.el10_2.aarch64.rpm kernel-rt-debug-core-0:6.12.0-211.54.1.el10_2.aarch64.rpm kernel-rt-64k-debug-devel-0:6.12.0-211.54.1.el10_2.aarch64.rpm

Rocky Linux 10 x86_64 - BaseOS

kernel-debug-modules-core-0:6.12.0-211.54.1.el10_2.x86_64.rpm kernel-debug-modules-extra-0:6.12.0-211.54.1.el10_2.x86_64.rpm kernel-modules-core-0:6.12.0-211.54.1.el10_2.x86_64.rpm kernel-tools-debuginfo-0:6.12.0-211.54.1.el10_2.x86_64.rpm kernel-0:6.12.0-211.54.1.el10_2.src.rpm kernel-debug-0:6.12.0-211.54.1.el10_2.x86_64.rpm kernel-modules-extra-0:6.12.0-211.54.1.el10_2.x86_64.rpm kernel-modules-extra-matched-0:6.12.0-211.54.1.el10_2.x86_64.rpm kernel-debug-uki-virt-0:6.12.0-211.54.1.el10_2.x86_64.rpm kernel-tools-libs-0:6.12.0-211.54.1.el10_2.x86_64.rpm kernel-modules-0:6.12.0-211.54.1.el10_2.x86_64.rpm kernel-debug-core-0:6.12.0-211.54.1.el10_2.x86_64.rpm kernel-tools-0:6.12.0-211.54.1.el10_2.x86_64.rpm kernel-debuginfo-0:6.12.0-211.54.1.el10_2.x86_64.rpm kernel-abi-stablelists-0:6.12.0-211.54.1.el10_2.noarch.rpm kernel-uki-virt-addons-0:6.12.0-211.54.1.el10_2.x86_64.rpm kernel-debuginfo-common-x86_64-0:6.12.0-211.54.1.el10_2.x86_64.rpm kernel-debug-modules-0:6.12.0-211.54.1.el10_2.x86_64.rpm kernel-uki-virt-0:6.12.0-211.54.1.el10_2.x86_64.rpm kernel-core-0:6.12.0-211.54.1.el10_2.x86_64.rpm kernel-0:6.12.0-211.54.1.el10_2.x86_64.rpm kernel-debug-debuginfo-0:6.12.0-211.54.1.el10_2.x86_64.rpm

Rocky Linux 10 ppc64le - AppStream

kernel-devel-matched-0:6.12.0-211.54.1.el10_2.ppc64le.rpm perf-0:6.12.0-211.54.1.el10_2.ppc64le.rpm kernel-debug-devel-0:6.12.0-211.54.1.el10_2.ppc64le.rpm python3-perf-debuginfo-0:6.12.0-211.54.1.el10_2.ppc64le.rpm kernel-devel-0:6.12.0-211.54.1.el10_2.ppc64le.rpm rv-0:6.12.0-211.54.1.el10_2.ppc64le.rpm rtla-0:6.12.0-211.54.1.el10_2.ppc64le.rpm python3-perf-0:6.12.0-211.54.1.el10_2.ppc64le.rpm kernel-doc-0:6.12.0-211.54.1.el10_2.noarch.rpm perf-debuginfo-0:6.12.0-211.54.1.el10_2.ppc64le.rpm kernel-debug-devel-matched-0:6.12.0-211.54.1.el10_2.ppc64le.rpm

Rocky Linux 10 aarch64 - BaseOS

kernel-uki-virt-0:6.12.0-211.54.1.el10_2.aarch64.rpm kernel-0:6.12.0-211.54.1.el10_2.src.rpm kernel-debug-debuginfo-0:6.12.0-211.54.1.el10_2.aarch64.rpm kernel-modules-extra-matched-0:6.12.0-211.54.1.el10_2.aarch64.rpm kernel-64k-modules-core-0:6.12.0-211.54.1.el10_2.aarch64.rpm kernel-modules-extra-0:6.12.0-211.54.1.el10_2.aarch64.rpm kernel-debug-modules-extra-0:6.12.0-211.54.1.el10_2.aarch64.rpm kernel-modules-core-0:6.12.0-211.54.1.el10_2.aarch64.rpm kernel-modules-0:6.12.0-211.54.1.el10_2.aarch64.rpm kernel-64k-modules-0:6.12.0-211.54.1.el10_2.aarch64.rpm kernel-core-0:6.12.0-211.54.1.el10_2.aarch64.rpm kernel-debug-modules-0:6.12.0-211.54.1.el10_2.aarch64.rpm kernel-uki-virt-addons-0:6.12.0-211.54.1.el10_2.aarch64.rpm kernel-debuginfo-0:6.12.0-211.54.1.el10_2.aarch64.rpm kernel-64k-debug-core-0:6.12.0-211.54.1.el10_2.aarch64.rpm kernel-64k-debuginfo-0:6.12.0-211.54.1.el10_2.aarch64.rpm kernel-debuginfo-common-aarch64-0:6.12.0-211.54.1.el10_2.aarch64.rpm kernel-debug-0:6.12.0-211.54.1.el10_2.aarch64.rpm kernel-64k-modules-extra-0:6.12.0-211.54.1.el10_2.aarch64.rpm kernel-64k-debug-modules-0:6.12.0-211.54.1.el10_2.aarch64.rpm kernel-tools-0:6.12.0-211.54.1.el10_2.aarch64.rpm kernel-abi-stablelists-0:6.12.0-211.54.1.el10_2.noarch.rpm kernel-64k-debug-0:6.12.0-211.54.1.el10_2.aarch64.rpm kernel-tools-debuginfo-0:6.12.0-211.54.1.el10_2.aarch64.rpm kernel-64k-core-0:6.12.0-211.54.1.el10_2.aarch64.rpm kernel-0:6.12.0-211.54.1.el10_2.aarch64.rpm kernel-tools-libs-0:6.12.0-211.54.1.el10_2.aarch64.rpm kernel-debug-modules-core-0:6.12.0-211.54.1.el10_2.aarch64.rpm kernel-64k-debug-debuginfo-0:6.12.0-211.54.1.el10_2.aarch64.rpm kernel-64k-debug-modules-extra-0:6.12.0-211.54.1.el10_2.aarch64.rpm kernel-debug-core-0:6.12.0-211.54.1.el10_2.aarch64.rpm kernel-64k-0:6.12.0-211.54.1.el10_2.aarch64.rpm kernel-64k-debug-modules-core-0:6.12.0-211.54.1.el10_2.aarch64.rpm

Rocky Linux 10 x86_64 - AppStream

rv-0:6.12.0-211.54.1.el10_2.x86_64.rpm python3-perf-debuginfo-0:6.12.0-211.54.1.el10_2.x86_64.rpm rtla-0:6.12.0-211.54.1.el10_2.x86_64.rpm kernel-devel-matched-0:6.12.0-211.54.1.el10_2.x86_64.rpm perf-0:6.12.0-211.54.1.el10_2.x86_64.rpm kernel-devel-0:6.12.0-211.54.1.el10_2.x86_64.rpm kernel-doc-0:6.12.0-211.54.1.el10_2.noarch.rpm perf-debuginfo-0:6.12.0-211.54.1.el10_2.x86_64.rpm kernel-debug-devel-0:6.12.0-211.54.1.el10_2.x86_64.rpm python3-perf-0:6.12.0-211.54.1.el10_2.x86_64.rpm kernel-debug-devel-matched-0:6.12.0-211.54.1.el10_2.x86_64.rpm

Rocky Linux 10 s390x - BaseOS

kernel-debug-debuginfo-0:6.12.0-211.54.1.el10_2.s390x.rpm kernel-debuginfo-common-s390x-0:6.12.0-211.54.1.el10_2.s390x.rpm kernel-zfcpdump-core-0:6.12.0-211.54.1.el10_2.s390x.rpm kernel-0:6.12.0-211.54.1.el10_2.src.rpm kernel-debuginfo-0:6.12.0-211.54.1.el10_2.s390x.rpm kernel-debug-modules-extra-0:6.12.0-211.54.1.el10_2.s390x.rpm kernel-modules-0:6.12.0-211.54.1.el10_2.s390x.rpm kernel-tools-0:6.12.0-211.54.1.el10_2.s390x.rpm kernel-tools-debuginfo-0:6.12.0-211.54.1.el10_2.s390x.rpm kernel-debug-0:6.12.0-211.54.1.el10_2.s390x.rpm kernel-core-0:6.12.0-211.54.1.el10_2.s390x.rpm kernel-modules-extra-0:6.12.0-211.54.1.el10_2.s390x.rpm kernel-abi-stablelists-0:6.12.0-211.54.1.el10_2.noarch.rpm kernel-debug-core-0:6.12.0-211.54.1.el10_2.s390x.rpm kernel-zfcpdump-modules-core-0:6.12.0-211.54.1.el10_2.s390x.rpm kernel-modules-core-0:6.12.0-211.54.1.el10_2.s390x.rpm kernel-modules-extra-matched-0:6.12.0-211.54.1.el10_2.s390x.rpm kernel-zfcpdump-0:6.12.0-211.54.1.el10_2.s390x.rpm kernel-zfcpdump-modules-extra-0:6.12.0-211.54.1.el10_2.s390x.rpm kernel-debug-modules-0:6.12.0-211.54.1.el10_2.s390x.rpm kernel-0:6.12.0-211.54.1.el10_2.s390x.rpm kernel-zfcpdump-debuginfo-0:6.12.0-211.54.1.el10_2.s390x.rpm kernel-debug-modules-core-0:6.12.0-211.54.1.el10_2.s390x.rpm kernel-zfcpdump-modules-0:6.12.0-211.54.1.el10_2.s390x.rpm

Rocky Linux 10 s390x - AppStream

perf-0:6.12.0-211.54.1.el10_2.s390x.rpm kernel-zfcpdump-devel-0:6.12.0-211.54.1.el10_2.s390x.rpm perf-debuginfo-0:6.12.0-211.54.1.el10_2.s390x.rpm rtla-0:6.12.0-211.54.1.el10_2.s390x.rpm kernel-debug-devel-0:6.12.0-211.54.1.el10_2.s390x.rpm kernel-zfcpdump-devel-matched-0:6.12.0-211.54.1.el10_2.s390x.rpm kernel-doc-0:6.12.0-211.54.1.el10_2.noarch.rpm python3-perf-0:6.12.0-211.54.1.el10_2.s390x.rpm kernel-debug-devel-matched-0:6.12.0-211.54.1.el10_2.s390x.rpm rv-0:6.12.0-211.54.1.el10_2.s390x.rpm python3-perf-debuginfo-0:6.12.0-211.54.1.el10_2.s390x.rpm kernel-devel-0:6.12.0-211.54.1.el10_2.s390x.rpm kernel-devel-matched-0:6.12.0-211.54.1.el10_2.s390x.rpm

Rocky Linux 10 ppc64le - BaseOS

kernel-debug-modules-0:6.12.0-211.54.1.el10_2.ppc64le.rpm kernel-modules-extra-matched-0:6.12.0-211.54.1.el10_2.ppc64le.rpm kernel-0:6.12.0-211.54.1.el10_2.src.rpm kernel-tools-libs-0:6.12.0-211.54.1.el10_2.ppc64le.rpm kernel-core-0:6.12.0-211.54.1.el10_2.ppc64le.rpm kernel-tools-0:6.12.0-211.54.1.el10_2.ppc64le.rpm kernel-tools-debuginfo-0:6.12.0-211.54.1.el10_2.ppc64le.rpm kernel-modules-extra-0:6.12.0-211.54.1.el10_2.ppc64le.rpm kernel-debuginfo-common-ppc64le-0:6.12.0-211.54.1.el10_2.ppc64le.rpm kernel-modules-core-0:6.12.0-211.54.1.el10_2.ppc64le.rpm kernel-abi-stablelists-0:6.12.0-211.54.1.el10_2.noarch.rpm kernel-debug-core-0:6.12.0-211.54.1.el10_2.ppc64le.rpm kernel-debug-0:6.12.0-211.54.1.el10_2.ppc64le.rpm kernel-debug-modules-core-0:6.12.0-211.54.1.el10_2.ppc64le.rpm kernel-debuginfo-0:6.12.0-211.54.1.el10_2.ppc64le.rpm kernel-debug-modules-extra-0:6.12.0-211.54.1.el10_2.ppc64le.rpm kernel-modules-0:6.12.0-211.54.1.el10_2.ppc64le.rpm kernel-0:6.12.0-211.54.1.el10_2.ppc64le.rpm kernel-debug-debuginfo-0:6.12.0-211.54.1.el10_2.ppc64le.rpm

Rocky Linux 10 aarch64 - AppStream

kernel-64k-debug-devel-0:6.12.0-211.54.1.el10_2.aarch64.rpm rtla-0:6.12.0-211.54.1.el10_2.aarch64.rpm kernel-debug-devel-0:6.12.0-211.54.1.el10_2.aarch64.rpm kernel-64k-devel-0:6.12.0-211.54.1.el10_2.aarch64.rpm python3-perf-debuginfo-0:6.12.0-211.54.1.el10_2.aarch64.rpm kernel-devel-0:6.12.0-211.54.1.el10_2.aarch64.rpm kernel-64k-debug-devel-matched-0:6.12.0-211.54.1.el10_2.aarch64.rpm kernel-doc-0:6.12.0-211.54.1.el10_2.noarch.rpm kernel-64k-devel-matched-0:6.12.0-211.54.1.el10_2.aarch64.rpm python3-perf-0:6.12.0-211.54.1.el10_2.aarch64.rpm perf-0:6.12.0-211.54.1.el10_2.aarch64.rpm perf-debuginfo-0:6.12.0-211.54.1.el10_2.aarch64.rpm kernel-devel-matched-0:6.12.0-211.54.1.el10_2.aarch64.rpm kernel-debug-devel-matched-0:6.12.0-211.54.1.el10_2.aarch64.rpm rv-0:6.12.0-211.54.1.el10_2.aarch64.rpm

Rocky Linux 10 riscv64 - BaseOS

kernel-0:6.12.0-211.54.1.el10_2.src.rpm kernel-abi-stablelists-0:6.12.0-211.54.1.el10_2.noarch.rpm

Rocky Linux 10 x86_64 - NFV

kernel-rt-debug-core-0:6.12.0-211.54.1.el10_2.x86_64.rpm kernel-rt-modules-extra-0:6.12.0-211.54.1.el10_2.x86_64.rpm kernel-rt-devel-0:6.12.0-211.54.1.el10_2.x86_64.rpm kernel-rt-modules-core-0:6.12.0-211.54.1.el10_2.x86_64.rpm kernel-rt-core-0:6.12.0-211.54.1.el10_2.x86_64.rpm kernel-rt-debug-modules-core-0:6.12.0-211.54.1.el10_2.x86_64.rpm kernel-rt-debuginfo-0:6.12.0-211.54.1.el10_2.x86_64.rpm kernel-rt-debug-modules-extra-0:6.12.0-211.54.1.el10_2.x86_64.rpm kernel-rt-debug-devel-0:6.12.0-211.54.1.el10_2.x86_64.rpm kernel-rt-modules-0:6.12.0-211.54.1.el10_2.x86_64.rpm kernel-rt-debug-0:6.12.0-211.54.1.el10_2.x86_64.rpm kernel-rt-debug-modules-0:6.12.0-211.54.1.el10_2.x86_64.rpm kernel-rt-0:6.12.0-211.54.1.el10_2.x86_64.rpm kernel-rt-debug-debuginfo-0:6.12.0-211.54.1.el10_2.x86_64.rpm

Rocky Linux 10 x86_64 - RT

kernel-rt-debug-core-0:6.12.0-211.54.1.el10_2.x86_64.rpm kernel-rt-modules-extra-0:6.12.0-211.54.1.el10_2.x86_64.rpm kernel-rt-devel-0:6.12.0-211.54.1.el10_2.x86_64.rpm kernel-rt-modules-core-0:6.12.0-211.54.1.el10_2.x86_64.rpm kernel-rt-core-0:6.12.0-211.54.1.el10_2.x86_64.rpm kernel-rt-debug-modules-core-0:6.12.0-211.54.1.el10_2.x86_64.rpm kernel-rt-debuginfo-0:6.12.0-211.54.1.el10_2.x86_64.rpm kernel-rt-debug-modules-extra-0:6.12.0-211.54.1.el10_2.x86_64.rpm kernel-rt-debug-devel-0:6.12.0-211.54.1.el10_2.x86_64.rpm kernel-rt-modules-0:6.12.0-211.54.1.el10_2.x86_64.rpm kernel-rt-debug-0:6.12.0-211.54.1.el10_2.x86_64.rpm kernel-rt-debug-modules-0:6.12.0-211.54.1.el10_2.x86_64.rpm kernel-rt-0:6.12.0-211.54.1.el10_2.x86_64.rpm kernel-rt-debug-debuginfo-0:6.12.0-211.54.1.el10_2.x86_64.rpm

Rocky Linux 10 x86_64 - CRB

libperf-debuginfo-0:6.12.0-211.54.1.el10_2.x86_64.rpm kernel-tools-libs-devel-0:6.12.0-211.54.1.el10_2.x86_64.rpm libperf-0:6.12.0-211.54.1.el10_2.x86_64.rpm

Rocky Linux 10 aarch64 - CRB

libperf-debuginfo-0:6.12.0-211.54.1.el10_2.aarch64.rpm kernel-tools-libs-devel-0:6.12.0-211.54.1.el10_2.aarch64.rpm libperf-0:6.12.0-211.54.1.el10_2.aarch64.rpm

Rocky Linux 10 s390x - CRB

libperf-debuginfo-0:6.12.0-211.54.1.el10_2.s390x.rpm libperf-0:6.12.0-211.54.1.el10_2.s390x.rpm

Rocky Linux 10 ppc64le - CRB

libperf-0:6.12.0-211.54.1.el10_2.ppc64le.rpm kernel-tools-libs-devel-0:6.12.0-211.54.1.el10_2.ppc64le.rpm libperf-debuginfo-0:6.12.0-211.54.1.el10_2.ppc64le.rpm

Rocky Linux 10 riscv64 - AppStream

kernel-doc-0:6.12.0-211.54.1.el10_2.noarch.rpm