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CVE-2026-64042 vfio/pci: Check BAR resources before exporting a DMABUF

🗓️ 19 Jul 2026 15:39:28Reported by LinuxType 
cvelist
 cvelist
🔗 www.cve.org👁 40 Views

CVE-2026-64042 fixes vfio pci DMABUF export by verifying BAR resources are reserved.

Related
Affected
Refs
[
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "unaffected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "drivers/vfio/pci/vfio_pci_dmabuf.c"
    ],
    "versions": [
      {
        "version": "5d74781ebc86c5fa9e9d6934024c505412de9b52",
        "lessThan": "8443cd4497a4498c4b01058d76a92116244cb605",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "5d74781ebc86c5fa9e9d6934024c505412de9b52",
        "lessThan": "702809dabdecca807bdd50cfdcc1c980feb2ba62",
        "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/vfio/pci/vfio_pci_dmabuf.c"
    ],
    "versions": [
      {
        "version": "6.19",
        "status": "affected"
      },
      {
        "version": "0",
        "lessThan": "6.19",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "7.0.11",
        "lessThanOrEqual": "7.0.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "7.1",
        "lessThanOrEqual": "*",
        "status": "unaffected",
        "versionType": "original_commit_for_fix"
      }
    ]
  }
]

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05 Aug 2026 12:38Current
CVSS 3.18.8
EPSS0.00154
40