ELSA-2026-66355-0: Security update for 30 packages

ELSA-2026-66355-0, released September 11, 2026, fixes 1 CVE across 30 products. None of them is reported as exploited. Patch Radar priority: High.

High

CVEs closed

None rated Critical

Exploited

None reported

Highest CVSS

9.8

Base score, 0 to 10

Highest EPSS

0.0058

47th percentile

Fixed package versions

Product	Release	Fixed in
kernel	ol 10	0:6.12.0-211.54.1.el10_2
kernel-abi-stablelists	ol 10	0:6.12.0-211.54.1.el10_2
kernel-core	ol 10	0:6.12.0-211.54.1.el10_2
kernel-cross-headers	ol 10	0:6.12.0-211.54.1.el10_2
kernel-debug	ol 10	0:6.12.0-211.54.1.el10_2
kernel-debug-core	ol 10	0:6.12.0-211.54.1.el10_2
kernel-debug-devel	ol 10	0:6.12.0-211.54.1.el10_2
kernel-debug-devel-matched	ol 10	0:6.12.0-211.54.1.el10_2
kernel-debug-modules	ol 10	0:6.12.0-211.54.1.el10_2
kernel-debug-modules-core	ol 10	0:6.12.0-211.54.1.el10_2
kernel-debug-modules-extra	ol 10	0:6.12.0-211.54.1.el10_2
kernel-debug-uki-virt	ol 10	0:6.12.0-211.54.1.el10_2
kernel-devel	ol 10	0:6.12.0-211.54.1.el10_2
kernel-devel-matched	ol 10	0:6.12.0-211.54.1.el10_2
kernel-doc	ol 10	0:6.12.0-211.54.1.el10_2
kernel-headers	ol 10	0:6.12.0-211.54.1.el10_2
kernel-modules	ol 10	0:6.12.0-211.54.1.el10_2
kernel-modules-core	ol 10	0:6.12.0-211.54.1.el10_2
kernel-modules-extra	ol 10	0:6.12.0-211.54.1.el10_2
kernel-modules-extra-matched	ol 10	0:6.12.0-211.54.1.el10_2
kernel-tools	ol 10	0:6.12.0-211.54.1.el10_2
kernel-tools-libs	ol 10	0:6.12.0-211.54.1.el10_2
kernel-tools-libs-devel	ol 10	0:6.12.0-211.54.1.el10_2
kernel-uki-virt	ol 10	0:6.12.0-211.54.1.el10_2
kernel-uki-virt-addons	ol 10	0:6.12.0-211.54.1.el10_2
libperf	ol 10	0:6.12.0-211.54.1.el10_2
perf	ol 10	0:6.12.0-211.54.1.el10_2
python3-perf	ol 10	0:6.12.0-211.54.1.el10_2
rtla	ol 10	0:6.12.0-211.54.1.el10_2
rv	ol 10	0:6.12.0-211.54.1.el10_2

CVEs this fix closes

Priority	CVE	Title	CVSS	EPSS	Exploitation
High	CVE-2026-74480	net: bridge: stop fast-leave after deleting a port group	9.8	0.0058	None reported

Also fixes CVE-2026-74480

ELSA-2026-500248
kernel-uek, kernel-uek-core, kernel-uek-debug and 32 more on ol 10, ol 9
SUSE-SU-2026:4660-1
kernel-default, kernel-default-base, kernel-docs and 4 more on sles 15.6
RHSA-2026:92062
kpatch-patch-4_18_0-553_109_1, kpatch-patch-4_18_0-553_125_1, kpatch-patch-4_18_0-553_158_1 and 2 more on RHEL 8
RHSA-2026:91650
kpatch-patch-5_14_0-687_10_1, kpatch-patch-5_14_0-687_42_1 on RHEL 9
ELSA-2026-500249
bpftool, kernel-uek, kernel-uek-container and 16 more on ol 8, ol 9
SUSE-SU-2026:4640-1
kernel-livepatch-SLE15-SP7-RT_Update_21 on sles 15.7
SUSE-SU-2026:4706-1
kernel-64kb, kernel-azure, kernel-default and 7 more on sles 15.7
OPENSUSE-SU-2026:22091-1
dtb-aarch64, kernel-64kb, kernel-azure and 10 more on opensuse-leap 16.0

Vendor advisory

https://linux.oracle.com/errata/ELSA-2026-66355-0.html

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