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Oracle Linux 8 Kernel Update Fixes Zen 5 and IOMMU Issues

Linuxsecurity •LinuxSecurity Advisories • November 11, 2026

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[5.15.0-326.222.4.1] - Fix TSA microcode check for ZEN5 (Dave Kleikamp) [Orabug: 40172717] {CVE-2024-36350} {CVE-2024-36357} {CVE-2026-0004} - Fix Zen5 TSA (Borislav Petkov (AMD)) [Orabug: 40172717] {CVE-2024-36350} {CVE-2024-36357} {CVE-2026-0004} - iommu/amd: Force device table to maximum size (Suravee Suthikulpanit) [Orabug: 40172717] {CVE-2024-21963}

bpftool-5.15.0-326.222.4.1.el8uek.x86_64.rpm kernel-uek-5.15.0-326.222.4.1.el8uek.x86_64.rpm kernel-uek-core-5.15.0-326.222.4.1.el8uek.x86_64.rpm kernel-uek-debug-5.15.0-326.222.4.1.el8uek.x86_64.rpm kernel-uek-debug-core-5.15.0-326.222.4.1.el8uek.x86_64.rpm kernel-uek-debug-devel-5.15.0-326.222.4.1.el8uek.x86_64.rpm kernel-uek-debug-modules-5.15.0-326.222.4.1.el8uek.x86_64.rpm kernel-uek-debug-modules-extra-5.15.0-326.222.4.1.el8uek.x86_64.rpm kernel-uek-devel-5.15.0-326.222.4.1.el8uek.x86_64.rpm kernel-uek-doc-5.15.0-326.222.4.1.el8uek.noarch.rpm kernel-uek-modules-5.15.0-326.222.4.1.el8uek.x86_64.rpm kernel-uek-modules-extra-5.15.0-326.222.4.1.el8uek.x86_64.rpm kernel-uek-container-5.15.0-326.222.4.1.el8uek.x86_64.rpm kernel-uek-container-debug-5.15.0-326.222.4.1.el8uek.x86_64.rpm

bpftool-5.15.0-326.222.4.1.el8uek.aarch64.rpm kernel-uek-5.15.0-326.222.4.1.el8uek.aarch64.rpm kernel-uek-core-5.15.0-326.222.4.1.el8uek.aarch64.rpm kernel-uek-debug-5.15.0-326.222.4.1.el8uek.aarch64.rpm kernel-uek-debug-core-5.15.0-326.222.4.1.el8uek.aarch64.rpm kernel-uek-debug-devel-5.15.0-326.222.4.1.el8uek.aarch64.rpm kernel-uek-debug-modules-5.15.0-326.222.4.1.el8uek.aarch64.rpm kernel-uek-debug-modules-extra-5.15.0-326.222.4.1.el8uek.aarch64.rpm kernel-uek-devel-5.15.0-326.222.4.1.el8uek.aarch64.rpm kernel-uek-doc-5.15.0-326.222.4.1.el8uek.noarch.rpm kernel-uek-modules-5.15.0-326.222.4.1.el8uek.aarch64.rpm kernel-uek-modules-extra-5.15.0-326.222.4.1.el8uek.aarch64.rpm kernel-uek-container-5.15.0-326.222.4.1.el8uek.aarch64.rpm kernel-uek-container-debug-5.15.0-326.222.4.1.el8uek.aarch64.rpm

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Oracle Linux Kernel Updates Address Critical AMD IOMMU Vulnerabilities On November 11, 2026, Oracle released multiple kernel updates for Linux versions 7, 8, and 9 to address critical vulnerabilities affecting AMD IOMMU and Zen5 support. The updates fix issues related to the device table size and TSA microcode checks, with CVEs including CVE-2024-21963, CVE-2024-36350, CVE-2024-36357, and CVE-2026-0004. The vulnerabilities could allow attackers to exploit memory flaws, potentially leading to unauthorized access or system crashes. Users of Oracle Linux 7, 8, and 9 are urged to apply the updates immediately to mitigate risks. The updates are available for various architectures, including x86_64 and aarch64. The vulnerabilities were disclosed in the context of ongoing security improvements for Oracle's Linux distributions. 6 sources 61

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Oracle Linux 8 Kernel Update Fixes Zen 5 and IOMMU Issues

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