{
  "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-2026-53138",
    "sourceURL": "https://www.cve.org/CVERecord?id=CVE-2026-53138",
    "idYear": 2026,
    "status": "PUBLISHED",
    "publishedAt": "2026-06-25T08:38:26.859Z",
    "updatedAt": "2026-07-04T11:50:51.199Z",
    "importedAt": "2026-10-24T01:58:20.586Z",
    "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/amd/display: Bound VBIOS record-chain walk loops",
      "summary": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/amd/display: Bound VBIOS record-chain walk loops\n\n[Why & How]\nAll record-chain walk loops in bios_parser.c and bios_parser2.c use\nfor(;;) and only terminate on a 0xFF record_type sentinel or zero\nrecord_size. A malformed VBIOS image missing the terminator record\ncauses unbounded iteration at probe time, potentially hundreds of\nthousands of iterations with record_size=1. In the final iterations\nnear the BIOS image boundary, struct casts beyond the 2-byte header\nvalidated by GET_IMAGE can also read out of bounds.\n\nCap all 14 record-chain walk loops to BIOS_MAX_NUM_RECORD (256)\niterations. The atombios.h defines up to 22 distinct record types\nand atomfirmware.h has 13. Assuming an average of less than 10\nrecords per type (which is reasonable since most are connector-\nbased) 256 is a generous upper bound.\n\n(cherry picked from commit 95700a3d660287ed657d6892f7be9ffc0e294a93)",
      "affected": [
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "unaffected",
          "versions": [
            {
              "version": "4562236b3bc0a28aeb6ee93b2d8a849a4c4e1c7c",
              "status": "affected",
              "versionType": "git",
              "lessThan": "e94f5323c41f32a74160378c3b19850d1f203ad5"
            },
            {
              "version": "4562236b3bc0a28aeb6ee93b2d8a849a4c4e1c7c",
              "status": "affected",
              "versionType": "git",
              "lessThan": "04e271a952b8863bbafc99bd51aca4c32bff0e0d"
            },
            {
              "version": "4562236b3bc0a28aeb6ee93b2d8a849a4c4e1c7c",
              "status": "affected",
              "versionType": "git",
              "lessThan": "6723188c42ca3b34a9fce634d7a0ecc9ccd5cd56"
            },
            {
              "version": "4562236b3bc0a28aeb6ee93b2d8a849a4c4e1c7c",
              "status": "affected",
              "versionType": "git",
              "lessThan": "499c6b43a79dd684bddbd18fe8b2235aa2764db4"
            },
            {
              "version": "4562236b3bc0a28aeb6ee93b2d8a849a4c4e1c7c",
              "status": "affected",
              "versionType": "git",
              "lessThan": "6173cfea2f916e01c4f98e29cd654384a05e32a3"
            },
            {
              "version": "4562236b3bc0a28aeb6ee93b2d8a849a4c4e1c7c",
              "status": "affected",
              "versionType": "git",
              "lessThan": "0e56f460bddb397fa9a8e6faf7ae7eaa86953eb1"
            },
            {
              "version": "4562236b3bc0a28aeb6ee93b2d8a849a4c4e1c7c",
              "status": "affected",
              "versionType": "git",
              "lessThan": "2645e3caf7e013189da9c6ff621d006cca5a538b"
            },
            {
              "version": "4562236b3bc0a28aeb6ee93b2d8a849a4c4e1c7c",
              "status": "affected",
              "versionType": "git",
              "lessThan": "ff287df16a1a58aca78b08d1f3ee09fc44da0351"
            }
          ]
        },
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "affected",
          "versions": [
            {
              "version": "4.15",
              "status": "affected"
            },
            {
              "version": "0",
              "status": "unaffected",
              "versionType": "semver",
              "lessThan": "4.15"
            },
            {
              "version": "5.10.260",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "5.10.*"
            },
            {
              "version": "5.15.211",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "5.15.*"
            },
            {
              "version": "6.1.177",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.1.*"
            },
            {
              "version": "6.6.144",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.6.*"
            },
            {
              "version": "6.12.94",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.12.*"
            },
            {
              "version": "6.18.36",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.18.*"
            },
            {
              "version": "7.0.13",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "7.0.*"
            },
            {
              "version": "7.1",
              "status": "unaffected",
              "versionType": "original_commit_for_fix",
              "lessThanOrEqual": "*"
            }
          ]
        }
      ]
    }
  }
}