Security Advisory

CVE-2026-89448

CVE vulnerability detail - eXtreme Datacenter Security Operations

Published 2026-09-11 19:43:14

Last updated 2026-09-11 19:43:14

Assigner Linux

CVSS score not scored

State PUBLISHED

Description

In the Linux kernel, the following vulnerability has been resolved: iommu/vt-d: Force requesting ACS when tboot is enabled Currently the conditions of requesting ACS in detect_intel_iommu() don't include tboot, leading to a possible misconfiguration with ACS disabled (e.g. due to user opts) while iommu is later forced on by tboot_force_iommu(). Fix it by checking tboot in detect_intel_iommu().

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