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CVE-2026-74520 iommu/iommufd: Fix IOPF group ownership UAF

🗓️ 15 Aug 2026 12:27:38Reported by LinuxType 
cvelist
 cvelist
🔗 www.cve.org👁 3 Views

Linux kernel iommufd UAF occurs when accepted IOPF groups are not removed from the generic pending list before being queued for userspace response.

Related
Affected
Refs
ReporterTitlePublishedViews
Family
attackerkb
ATTACKERKB
CVE-2026-74520
15 Aug 202612:27
attackerkb
cve
CVE
CVE-2026-74520
15 Aug 202600:00
cve
debiancve
Debian CVE
CVE-2026-74520
15 Aug 202600:00
debiancve
euvd
EUVD
EUVD-2026-59713
15 Aug 202612:27
euvd
nvd
NVD
CVE-2026-74520
15 Aug 202613:17
nvd
osv
OSV
DEBIAN-CVE-2026-74520
15 Aug 202613:17
osv
ptsecurity
Positive Technologies
PT-2026-72972
15 Aug 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/io-pgfault.c",
      "drivers/iommu/iommufd/eventq.c",
      "include/linux/iommu.h"
    ],
    "versions": [
      {
        "version": "34765cbc679c59ea5d952d738d2d16bf4aadc497",
        "lessThan": "6da8f37419dd4c456f26fc203f04e000186f4b3d",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "34765cbc679c59ea5d952d738d2d16bf4aadc497",
        "lessThan": "4e74a369236424114b94cf6a9f5ff9e848b430b4",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "34765cbc679c59ea5d952d738d2d16bf4aadc497",
        "lessThan": "738e6f32e61d80b554e37015ecb7bc620b88001c",
        "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/io-pgfault.c",
      "drivers/iommu/iommufd/eventq.c",
      "include/linux/iommu.h"
    ],
    "versions": [
      {
        "version": "6.11",
        "status": "affected"
      },
      {
        "version": "0",
        "lessThan": "6.11",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.18.44",
        "lessThanOrEqual": "6.18.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "7.1.8",
        "lessThanOrEqual": "7.1.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "7.2-rc6",
        "lessThanOrEqual": "*",
        "status": "unaffected",
        "versionType": "original_commit_for_fix"
      }
    ]
  }
]

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