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Oracle Linux 8 Kernel Important Bug Fix Advisory ELSA-2026-27353

oracle
Calendar Grey June 23, 2026
Oracle Linux Logo Esm H88
Review the important security advisory for Oracle Linux 8 addressing critical kernel updates and threat management.
The following updated rpms for Oracle Linux 8 have been uploaded to the Unbreakable Linux Network:

Summary

[4.18.0-553.136.1] - Update Oracle Linux certificates (Kevin Lyons) - Disable signing for aarch64 (Ilya Okomin) - Oracle Linux RHCK Module Signing Key was added to the kernel trusted keys list (olkmod_signing_key.pem) [Orabug: 29539237] - Update x509.genkey [Orabug: 24817676] - Conflict with shim-ia32 and shim-x64 <= 15.3-1.0.3 - Remove upstream reference during boot (Kevin Lyons) [Orabug: 34750652] - Add new Oracle Linux Driver Signing (key 1) certificate [Orabug: 37985772] - Update Oracle Linux certificates (Kevin Lyons) - Disable signing for aarch64 (Ilya Okomin) - Oracle Linux RHCK Module Signing Key was added to the kernel trusted keys list (olkmod_signing_key.pem) [Orabug: 29539237] - Update x509.genkey [Orabug: 24817676] - Conflict with shim-ia32 and shim-x64 <= 15.3-1.0.3 - Remove upstream reference during boot (Kevin Lyons) [Orabug: 34750652] - Add new Oracle Linux Driver Signing (key 1) certificate [Orabug: 37985772] [4.18.0-553.136.1] - net/sched: fix pedit partial COW leading to page cache corrup...

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Topics%20covered

Topics Covered

security advisory bug fix important kernel threat mitigation Oracle

SRPMs

http://oss.oracle.com/ol8/SRPMS-updates/kernel-4.18.0-553.136.1.el8_10.src.rpm

x86_64

bpftool-4.18.0-553.136.1.el8_10.x86_64.rpm kernel-4.18.0-553.136.1.el8_10.x86_64.rpm kernel-abi-stablelists-4.18.0-553.136.1.el8_10.noarch.rpm kernel-core-4.18.0-553.136.1.el8_10.x86_64.rpm kernel-cross-headers-4.18.0-553.136.1.el8_10.x86_64.rpm kernel-debug-4.18.0-553.136.1.el8_10.x86_64.rpm kernel-debug-core-4.18.0-553.136.1.el8_10.x86_64.rpm kernel-debug-devel-4.18.0-553.136.1.el8_10.x86_64.rpm kernel-debug-modules-4.18.0-553.136.1.el8_10.x86_64.rpm kernel-debug-modules-extra-4.18.0-553.136.1.el8_10.x86_64.rpm kernel-devel-4.18.0-553.136.1.el8_10.x86_64.rpm kernel-doc-4.18.0-553.136.1.el8_10.noarch.rpm kernel-headers-4.18.0-553.136.1.el8_10.x86_64.rpm kernel-modules-4.18.0-553.136.1.el8_10.x86_64.rpm kernel-modules-extra-4.18.0-553.136.1.el8_10.x86_64.rpm kernel-tools-4.18.0-553.136.1.el8_10.x86_64.rpm kernel-tools-libs-4.18.0-553.136.1.el8_10.x86_64.rpm kernel-tools-libs-devel-4.18.0-553.136.1.el8_10.x86_64.rpm perf-4.18.0-553.136.1.el8_10.x86_64.rpm python3-perf-4.18.0-553.136....

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aarch64

bpftool-4.18.0-553.136.1.el8_10.aarch64.rpm kernel-cross-headers-4.18.0-553.136.1.el8_10.aarch64.rpm kernel-headers-4.18.0-553.136.1.el8_10.aarch64.rpm kernel-tools-4.18.0-553.136.1.el8_10.aarch64.rpm kernel-tools-libs-4.18.0-553.136.1.el8_10.aarch64.rpm kernel-tools-libs-devel-4.18.0-553.136.1.el8_10.aarch64.rpm perf-4.18.0-553.136.1.el8_10.aarch64.rpm python3-perf-4.18.0-553.136.1.el8_10.aarch64.rpm

Severity
important
Lowest
Low
Medium
High
Critical

Related CVEs: CVE-2026-31419 CVE-2026-31488 CVE-2026-43056 CVE-2026-43279 CVE-2026-46090 CVE-2026-46135 CVE-2026-46145 CVE-2026-46331

Topics%20covered

Topics Covered

security advisory bug fix important kernel threat mitigation Oracle

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