CVE-2026-89448
In the Linux kernel, the following vulnerability has been resolved: iommu/vt-d: Force requesting ACS when tboot is enabled Currently the c
CVSS
9.3
Critical
EPSS
0.1%
p3
KEV
—
Exploit Today
1
0-100
Published: Sep 11, 2026 · Last modified: Oct 19, 2026
0.1%EPSS · 30 days0.2%
2026-09-302026-10-27
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().
- git.kernel.orghttps://git.kernel.org/stable/c/45705a6bfdb283f7b3b509010fd617b72f942537
- git.kernel.orghttps://git.kernel.org/stable/c/579eb867d3da63f3b5e32f235925e1daa7ec70d0
- git.kernel.orghttps://git.kernel.org/stable/c/607432b2618b61df81134be0ef2562b8300c1216
- git.kernel.orghttps://git.kernel.org/stable/c/87bc611c6c98a41c00feb7b06b0c297dd141a2ae
- git.kernel.orghttps://git.kernel.org/stable/c/aaeb81241e802c86be69394f72d49fde3f861fbb
No related CVEs by CWE or product.