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CVE-2026-89448 iommu/vt-d: Force requesting ACS when tboot is enabled

🗓️ 11 Sep 2026 19:43:14Reported by LinuxType 
cvelist
 cvelist
🔗 www.cve.org👁 21 Views

ACS misconfiguration in Linux kernel Intel IOMMU when tboot forces IOMMU on.

Related
Affected
Refs
ReporterTitlePublishedViews
Family
cve
CVE
CVE-2026-89448
11 Sep 202619:43
cve
debiancve
Debian CVE
CVE-2026-89448
11 Sep 202619:43
debiancve
euvd
EUVD
EUVD-2026-76354
11 Sep 202619:43
euvd
nvd
NVD
CVE-2026-89448
11 Sep 202620:19
nvd
osv
OSV
AZL-100874 CVE-2026-89448 affecting package kernel 6.6.150.1-1
11 Sep 202620:19
osv
osv
OSV
DEBIAN-CVE-2026-89448
11 Sep 202620:19
osv
ptsecurity
Positive Technologies
PT-2026-90164
11 Sep 202600:00
ptsecurity
[
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "unaffected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "drivers/iommu/intel/dmar.c",
      "drivers/iommu/intel/iommu.c",
      "drivers/iommu/intel/iommu.h"
    ],
    "versions": [
      {
        "version": "5d990b627537e59a3a2f039ff588a4750e9c1a6a",
        "lessThan": "aaeb81241e802c86be69394f72d49fde3f861fbb",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "5d990b627537e59a3a2f039ff588a4750e9c1a6a",
        "lessThan": "45705a6bfdb283f7b3b509010fd617b72f942537",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "5d990b627537e59a3a2f039ff588a4750e9c1a6a",
        "lessThan": "87bc611c6c98a41c00feb7b06b0c297dd141a2ae",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "5d990b627537e59a3a2f039ff588a4750e9c1a6a",
        "lessThan": "607432b2618b61df81134be0ef2562b8300c1216",
        "status": "affected",
        "versionType": "git"
      }
    ]
  },
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "affected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "drivers/iommu/intel/dmar.c",
      "drivers/iommu/intel/iommu.c",
      "drivers/iommu/intel/iommu.h"
    ],
    "versions": [
      {
        "version": "2.6.33",
        "status": "affected"
      },
      {
        "version": "0",
        "lessThan": "2.6.33",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.12.109",
        "lessThanOrEqual": "6.12.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.18.50",
        "lessThanOrEqual": "6.18.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "7.2.4",
        "lessThanOrEqual": "7.2.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "7.3-rc1",
        "lessThanOrEqual": "*",
        "status": "unaffected",
        "versionType": "original_commit_for_fix"
      }
    ]
  }
]

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11 Sep 2026 19:43Current
EPSS0.00168
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