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CVE-2026-64527 drm/hyperv: validate VMBus packet size in receive callback

🗓️ 25 Jul 2026 09:20:51Reported by LinuxType 
cvelist
 cvelist
🔗 www.cve.org👁 21 Views

Linux kernel patch validates VMBus packet size in Hyper-V graphics driver receive to prevent reading stale data.

Related
Affected
Refs
ReporterTitlePublishedViews
Family
ATTACKERKB
CVE-2026-64527
25 Jul 202609:20
attackerkb
CVE
CVE-2026-64527
25 Jul 202609:20
cve
Debian CVE
CVE-2026-64527
25 Jul 202609:20
debiancve
EUVD
EUVD-2026-49039
25 Jul 202609:20
euvd
NVD
CVE-2026-64527
25 Jul 202610:17
nvd
Positive Technologies
PT-2026-64758
25 Jul 202600:00
ptsecurity
[
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "unaffected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "drivers/gpu/drm/hyperv/hyperv_drm_proto.c"
    ],
    "versions": [
      {
        "version": "76c56a5affeba1e163b66b9d8cc192e6154466f0",
        "lessThan": "57d5d697642e05d5dd2d40660817765943dd709f",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "76c56a5affeba1e163b66b9d8cc192e6154466f0",
        "lessThan": "f5251226551bfec98c4705641b6f94ff1f238d91",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "76c56a5affeba1e163b66b9d8cc192e6154466f0",
        "lessThan": "049a6b474823049fe60212f25f26e4b30f44ee8f",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "76c56a5affeba1e163b66b9d8cc192e6154466f0",
        "lessThan": "588c84b461393ff1998ac7b97b04f953f642e0df",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "76c56a5affeba1e163b66b9d8cc192e6154466f0",
        "lessThan": "164dc7bf17609340233c6bf4f66bb7c7008a0511",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "76c56a5affeba1e163b66b9d8cc192e6154466f0",
        "lessThan": "c8974d96b6a5496f33dc69a3ce28a7bf5078def4",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "76c56a5affeba1e163b66b9d8cc192e6154466f0",
        "lessThan": "7f87763f47a3c22fb50265a00619ef10f2394b18",
        "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/gpu/drm/hyperv/hyperv_drm_proto.c"
    ],
    "versions": [
      {
        "version": "5.14",
        "status": "affected"
      },
      {
        "version": "0",
        "lessThan": "5.14",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "5.15.210",
        "lessThanOrEqual": "5.15.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.1.176",
        "lessThanOrEqual": "6.1.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.6.143",
        "lessThanOrEqual": "6.6.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.12.93",
        "lessThanOrEqual": "6.12.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.18.35",
        "lessThanOrEqual": "6.18.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "7.0.12",
        "lessThanOrEqual": "7.0.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "7.1",
        "lessThanOrEqual": "*",
        "status": "unaffected",
        "versionType": "original_commit_for_fix"
      }
    ]
  }
]

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