CVE-2026-89448
Critical · CVSS 9.3- CVSS
- 9.3
- nvd
- EPSS
- 0.14%
- 4th pct
- KEV
- No
- Class
- oss containerizable
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().
Affected packages
| Linux | Kernel | 2.6.33 → 6.12.109 |
| Linux | Kernel | 6.13.0 → 6.18.50 |
| Linux | Kernel | 6.19.0 → 7.2.4 |
References
- https://git.kernel.org/stable/c/45705a6bfdb283f7b3b509010fd617b72f942537
- https://git.kernel.org/stable/c/579eb867d3da63f3b5e32f235925e1daa7ec70d0
- https://git.kernel.org/stable/c/607432b2618b61df81134be0ef2562b8300c1216
- https://git.kernel.org/stable/c/87bc611c6c98a41c00feb7b06b0c297dd141a2ae
- https://git.kernel.org/stable/c/aaeb81241e802c86be69394f72d49fde3f861fbb
Status: profiled · ingested 2026-09-13T12:00:31.000Z