CVE-2026-89448

CVE CVE-2026-89448EUVD EUVD-2026-76354Published 2026-09-11T19:43:14.000ZLast changed 2026-09-14T11:59:55.000ZCVSS 9.3

What the advisory describes

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().

Source: EUVD (ENISA), in the words of the advisory.

Products the advisory names

These come from the advisory itself, not from any check we performed.

Linux — Linux 5d990b627537e59a3a2f039ff588a4750e9c1a6a <aaeb81241e802c86be69394f72d49fde3f861fbb; patch: 6.6.157; patch: 0; 2.6.33; 5d990b627537e59a3a2f039ff588a4750e9c1a6a <607432b2618b61df81134be0ef2562b8300c1216; patch: 7.3-rc1; patch: 6.12.109; 5d990b627537e59a3a2f039ff588a4750e9c1a6a <87bc611c6c98a41c00feb7b06b0c297dd141a2ae; patch: 6.18.50; patch: 7.2.4; 5d990b627537e59a3a2f039ff588a4750e9c1a6a <45705a6bfdb283f7b3b509010fd617b72f942537; 5d990b627537e59a3a2f039ff588a4750e9c1a6a <579eb867d3da63f3b5e32f235925e1daa7ec70d0

The versions shown are the advisory's own. Patchlage compares no version numbers and derives no judgement from them — which version is installed is something a person has to look up.

Carried in the product catalogue

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Linux — Linux

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