PT-2026-90164 · Linux · Linux
CVE-2026-89448
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Published
2026-09-11
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Updated
2026-09-11
None
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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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Related Identifiers
Affected Products
Linux