{
  "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-2026-64524",
    "sourceURL": "https://www.cve.org/CVERecord?id=CVE-2026-64524",
    "idYear": 2026,
    "status": "PUBLISHED",
    "publishedAt": "2026-07-25T09:20:48.193Z",
    "updatedAt": "2026-10-19T20:48:38.013Z",
    "importedAt": "2026-10-24T01:58:25.636Z",
    "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": "drm/hyperv: validate resolution_count and fix WIN8 fallback",
      "summary": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/hyperv: validate resolution_count and fix WIN8 fallback\n\nA SYNTHVID_RESOLUTION_RESPONSE with resolution_count > 64 walks past\nthe supported_resolution[SYNTHVID_MAX_RESOLUTION_COUNT] array in the\nparse loop. Bound resolution_count against the array size, folded\ninto the existing zero-check.\n\nWhen the WIN10 resolution probe fails, the caller in\nhyperv_connect_vsp() left hv->screen_*_max / preferred_* unpopulated,\nwhich sets mode_config.max_width / max_height to 0 and makes\ndrm_internal_framebuffer_create() reject every userspace framebuffer\nwith -EINVAL. The pre-WIN10 branch had the same gap for\npreferred_width / preferred_height. Use a single post-probe fallback\nguarded by screen_width_max == 0 so both paths converge on the WIN8\ndefaults.",
      "affected": [
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "unaffected",
          "versions": [
            {
              "version": "76c56a5affeba1e163b66b9d8cc192e6154466f0",
              "status": "affected",
              "versionType": "git",
              "lessThan": "96f7de3172d4aa878b7f87173b2b3507c350fcd6"
            },
            {
              "version": "76c56a5affeba1e163b66b9d8cc192e6154466f0",
              "status": "affected",
              "versionType": "git",
              "lessThan": "bc573752f3dac0d1ab8df7078c1851bc76717653"
            },
            {
              "version": "76c56a5affeba1e163b66b9d8cc192e6154466f0",
              "status": "affected",
              "versionType": "git",
              "lessThan": "1fb565b77b8f44afabb02de6310065f109d89e94"
            },
            {
              "version": "76c56a5affeba1e163b66b9d8cc192e6154466f0",
              "status": "affected",
              "versionType": "git",
              "lessThan": "a321c908f2eeea01539668eb270d074d9b88e490"
            },
            {
              "version": "76c56a5affeba1e163b66b9d8cc192e6154466f0",
              "status": "affected",
              "versionType": "git",
              "lessThan": "9c698b2c43c2667c34f5336bf46ad5786216ac2a"
            },
            {
              "version": "76c56a5affeba1e163b66b9d8cc192e6154466f0",
              "status": "affected",
              "versionType": "git",
              "lessThan": "8a114b25b5521eae451b13bce98ae978624962e5"
            },
            {
              "version": "76c56a5affeba1e163b66b9d8cc192e6154466f0",
              "status": "affected",
              "versionType": "git",
              "lessThan": "13d33b9ef67066c77c84273fac5a1d3fde3533d1"
            }
          ]
        },
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "affected",
          "versions": [
            {
              "version": "5.14",
              "status": "affected"
            },
            {
              "version": "0",
              "status": "unaffected",
              "versionType": "semver",
              "lessThan": "5.14"
            },
            {
              "version": "5.15.210",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "5.15.*"
            },
            {
              "version": "6.1.176",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.1.*"
            },
            {
              "version": "6.6.143",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.6.*"
            },
            {
              "version": "6.12.93",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.12.*"
            },
            {
              "version": "6.18.35",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.18.*"
            },
            {
              "version": "7.0.12",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "7.0.*"
            },
            {
              "version": "7.1",
              "status": "unaffected",
              "versionType": "original_commit_for_fix",
              "lessThanOrEqual": "*"
            }
          ]
        }
      ]
    }
  }
}