{
  "schemaVersion": 1,
  "attribution": [
    {
      "source": "CISA Known Exploited Vulnerabilities",
      "url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog",
      "licence": "US government work"
    },
    {
      "source": "GitHub Advisory Database",
      "url": "https://github.com/advisories",
      "licence": "CC BY 4.0"
    },
    {
      "source": "Have I Been Pwned",
      "url": "https://haveibeenpwned.com/",
      "licence": "CC BY 4.0"
    },
    {
      "source": "CVE Program (CVE records)",
      "url": "https://www.cve.org/Legal/TermsOfUse",
      "licence": "CVE Terms of Use",
      "notice": "Copyright © 1999-2026, The MITRE Corporation. CVE is a trademark and the CVE logo is a registered trademark of The MITRE Corporation.",
      "terms": "CVE Usage: MITRE hereby grants you a perpetual, worldwide, non-exclusive, no-charge, royalty-free, irrevocable copyright license to reproduce, prepare derivative works of, publicly display, publicly perform, sublicense, and distribute Common Vulnerabilities and Exposures (CVE™). Any copy you make for such purposes is authorized provided that you reproduce MITRE's copyright designation and this license in any such copy."
    },
    {
      "source": "FIRST EPSS",
      "url": "https://www.first.org/epss/",
      "licence": "free to use; FIRST requests attribution"
    }
  ],
  "record": {
    "id": "CVE-2024-36909",
    "sourceURL": "https://www.cve.org/CVERecord?id=CVE-2024-36909",
    "idYear": 2024,
    "status": "PUBLISHED",
    "publishedAt": "2024-05-30T15:29:08.339Z",
    "updatedAt": "2026-08-05T11:31:56.472Z",
    "importedAt": "2026-10-24T01:57:11.582Z",
    "snapshot": {
      "id": "cve_2026-10-24_midnight_baseline",
      "at": "2026-10-24T00:00:00.000Z",
      "source": "https://github.com/CVEProject/cvelistV5/releases/tag/cve_2026-10-24_0100Z"
    },
    "facts": {
      "title": "Drivers: hv: vmbus: Don't free ring buffers that couldn't be re-encrypted",
      "summary": "In the Linux kernel, the following vulnerability has been resolved:\n\nDrivers: hv: vmbus: Don't free ring buffers that couldn't be re-encrypted\n\nIn CoCo VMs it is possible for the untrusted host to cause\nset_memory_encrypted() or set_memory_decrypted() to fail such that an\nerror is returned and the resulting memory is shared. Callers need to\ntake care to handle these errors to avoid returning decrypted (shared)\nmemory to the page allocator, which could lead to functional or security\nissues.\n\nThe VMBus ring buffer code could free decrypted/shared pages if\nset_memory_decrypted() fails. Check the decrypted field in the struct\nvmbus_gpadl for the ring buffers to decide whether to free the memory.",
      "affected": [
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "unaffected",
          "versions": [
            {
              "version": "d4dccf353db80e209f262e3973c834e6e48ba9a9",
              "status": "affected",
              "versionType": "git",
              "lessThan": "2f622008bf784a9f5dd17baa19223cc2ac30a039"
            },
            {
              "version": "d4dccf353db80e209f262e3973c834e6e48ba9a9",
              "status": "affected",
              "versionType": "git",
              "lessThan": "82f9e213b124a7d2bb5b16ea35d570260ef467e0"
            },
            {
              "version": "d4dccf353db80e209f262e3973c834e6e48ba9a9",
              "status": "affected",
              "versionType": "git",
              "lessThan": "a9212a4e2963a7fbe3864ba33dc551d4ad8d0abb"
            },
            {
              "version": "d4dccf353db80e209f262e3973c834e6e48ba9a9",
              "status": "affected",
              "versionType": "git",
              "lessThan": "30d18df6567be09c1433e81993e35e3da573ac48"
            }
          ]
        },
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "affected",
          "versions": [
            {
              "version": "5.16",
              "status": "affected"
            },
            {
              "version": "0",
              "status": "unaffected",
              "versionType": "semver",
              "lessThan": "5.16"
            },
            {
              "version": "6.1.91",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.1.*"
            },
            {
              "version": "6.6.31",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.6.*"
            },
            {
              "version": "6.8.10",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.8.*"
            },
            {
              "version": "6.9",
              "status": "unaffected",
              "versionType": "original_commit_for_fix",
              "lessThanOrEqual": "*"
            }
          ]
        }
      ]
    }
  }
}