CVE-2026-89448
- Source
- https://cve.org/CVERecord?id=CVE-2026-89448
- Import Source
- https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-89448.json
- JSON Data
- https://api.osv.dev/v1/vulns/CVE-2026-89448
- Downstream
- Published
- 2026-09-11T19:43:14Z
- Modified
- 2026-09-12T11:47:00Z
- Summary
- iommu/vt-d: Force requesting ACS when tboot is enabled
- Details
-
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().
- Database specific
{ "cna_assigner": "Linux", "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/89xxx/CVE-2026-89448.json" }- References
-
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- https://git.kernel.org/stable/c/45705a6bfdb283f7b3b509010fd617b72f942537
- https://git.kernel.org/stable/c/607432b2618b61df81134be0ef2562b8300c1216
- https://git.kernel.org/stable/c/87bc611c6c98a41c00feb7b06b0c297dd141a2ae
- https://git.kernel.org/stable/c/aaeb81241e802c86be69394f72d49fde3f861fbb
- https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/89xxx/CVE-2026-89448.json
- https://nvd.nist.gov/vuln/detail/CVE-2026-89448
Affected packages
Git / git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Affected ranges
- Type
- GIT
- Repo
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- Events
-
Introduced5d990b627537e59a3a2f039ff588a4750e9c1a6aFixedaaeb81241e802c86be69394f72d49fde3f861fbbFixed45705a6bfdb283f7b3b509010fd617b72f942537Fixed87bc611c6c98a41c00feb7b06b0c297dd141a2aeFixed607432b2618b61df81134be0ef2562b8300c1216