CVE-2026-64097 (GCVE-0-2026-64097)

Vulnerability from cvelistv5 – Published: 2026-07-19 15:40 – Updated: 2026-07-20 13:43
VLAI
Title
drm/amd/display: Validate GPIO pin LUT table size before iterating
Summary
In the Linux kernel, the following vulnerability has been resolved: drm/amd/display: Validate GPIO pin LUT table size before iterating [Why&How] The GPIO pin table parsers in get_gpio_i2c_info() and bios_parser_get_gpio_pin_info() derive an element count from the VBIOS table_header.structuresize field, then iterate over gpio_pin[] entries. However, GET_IMAGE() only validates that the table header itself fits within the BIOS image. If the VBIOS reports a structuresize larger than the actual mapped data, the loop reads past the end of the BIOS image, causing an out-of-bounds read. Fix this by calling bios_get_image() to validate that the full claimed structuresize is accessible within the BIOS image before entering the loop in both functions. (cherry picked from commit ba5e95b43b773ae1bf1f66ee6b31eb774e65afe3)
Severity
7.8 (High)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: ae79c310b1a6f97429a5784b65f125d9cc9c95b1 , < 9900f6954be779011e7c2cd42addd87baf028bc5 (git)
Affected: ae79c310b1a6f97429a5784b65f125d9cc9c95b1 , < fb30a3890d62fd50a95aef684faf64a307592e42 (git)
Affected: ae79c310b1a6f97429a5784b65f125d9cc9c95b1 , < 67461e0c15335894cc5d3b84cda823bf8cbdc886 (git)
Affected: ae79c310b1a6f97429a5784b65f125d9cc9c95b1 , < 7ca695b3122297b06a3ed605bbe1cd32c85d9f5a (git)
Affected: ae79c310b1a6f97429a5784b65f125d9cc9c95b1 , < f2a4827e980ba07de4391fa84d9c39a12726bdd7 (git)
Affected: ae79c310b1a6f97429a5784b65f125d9cc9c95b1 , < 86d2b20644b11d21fe52c596e6e922b4590a3e3f (git)
Create a notification for this product.
Linux Linux Affected: 4.15
Unaffected: 0 , < 4.15 (semver)
Unaffected: 6.1.175 , ≤ 6.1.* (semver)
Unaffected: 6.6.142 , ≤ 6.6.* (semver)
Unaffected: 6.12.92 , ≤ 6.12.* (semver)
Unaffected: 6.18.34 , ≤ 6.18.* (semver)
Unaffected: 7.0.11 , ≤ 7.0.* (semver)
Unaffected: 7.1 , ≤ * (original_commit_for_fix)
Create a notification for this product.
Show details on NVD website
To clipboard 

{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/gpu/drm/amd/display/dc/bios/bios_parser2.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "9900f6954be779011e7c2cd42addd87baf028bc5",
              "status": "affected",
              "version": "ae79c310b1a6f97429a5784b65f125d9cc9c95b1",
              "versionType": "git"
            },
            {
              "lessThan": "fb30a3890d62fd50a95aef684faf64a307592e42",
              "status": "affected",
              "version": "ae79c310b1a6f97429a5784b65f125d9cc9c95b1",
              "versionType": "git"
            },
            {
              "lessThan": "67461e0c15335894cc5d3b84cda823bf8cbdc886",
              "status": "affected",
              "version": "ae79c310b1a6f97429a5784b65f125d9cc9c95b1",
              "versionType": "git"
            },
            {
              "lessThan": "7ca695b3122297b06a3ed605bbe1cd32c85d9f5a",
              "status": "affected",
              "version": "ae79c310b1a6f97429a5784b65f125d9cc9c95b1",
              "versionType": "git"
            },
            {
              "lessThan": "f2a4827e980ba07de4391fa84d9c39a12726bdd7",
              "status": "affected",
              "version": "ae79c310b1a6f97429a5784b65f125d9cc9c95b1",
              "versionType": "git"
            },
            {
              "lessThan": "86d2b20644b11d21fe52c596e6e922b4590a3e3f",
              "status": "affected",
              "version": "ae79c310b1a6f97429a5784b65f125d9cc9c95b1",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/gpu/drm/amd/display/dc/bios/bios_parser2.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "4.15"
            },
            {
              "lessThan": "4.15",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.1.*",
              "status": "unaffected",
              "version": "6.1.175",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.6.*",
              "status": "unaffected",
              "version": "6.6.142",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.12.*",
              "status": "unaffected",
              "version": "6.12.92",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.18.*",
              "status": "unaffected",
              "version": "6.18.34",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.0.*",
              "status": "unaffected",
              "version": "7.0.11",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "7.1",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.1.175",
                  "versionStartIncluding": "4.15",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.6.142",
                  "versionStartIncluding": "4.15",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.12.92",
                  "versionStartIncluding": "4.15",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.18.34",
                  "versionStartIncluding": "4.15",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "7.0.11",
                  "versionStartIncluding": "4.15",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "7.1",
                  "versionStartIncluding": "4.15",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/amd/display: Validate GPIO pin LUT table size before iterating\n\n[Why\u0026How]\nThe GPIO pin table parsers in get_gpio_i2c_info() and\nbios_parser_get_gpio_pin_info() derive an element count from the VBIOS\ntable_header.structuresize field, then iterate over gpio_pin[] entries.\nHowever, GET_IMAGE() only validates that the table header itself fits\nwithin the BIOS image. If the VBIOS reports a structuresize larger than\nthe actual mapped data, the loop reads past the end of the BIOS image,\ncausing an out-of-bounds read.\n\nFix this by calling bios_get_image() to validate that the full claimed\nstructuresize is accessible within the BIOS image before entering the\nloop in both functions.\n\n(cherry picked from commit ba5e95b43b773ae1bf1f66ee6b31eb774e65afe3)"
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "baseScore": 7.8,
            "baseSeverity": "HIGH",
            "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
            "version": "3.1"
          }
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-07-20T13:43:17.391Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/9900f6954be779011e7c2cd42addd87baf028bc5"
        },
        {
          "url": "https://git.kernel.org/stable/c/fb30a3890d62fd50a95aef684faf64a307592e42"
        },
        {
          "url": "https://git.kernel.org/stable/c/67461e0c15335894cc5d3b84cda823bf8cbdc886"
        },
        {
          "url": "https://git.kernel.org/stable/c/7ca695b3122297b06a3ed605bbe1cd32c85d9f5a"
        },
        {
          "url": "https://git.kernel.org/stable/c/f2a4827e980ba07de4391fa84d9c39a12726bdd7"
        },
        {
          "url": "https://git.kernel.org/stable/c/86d2b20644b11d21fe52c596e6e922b4590a3e3f"
        }
      ],
      "title": "drm/amd/display: Validate GPIO pin LUT table size before iterating",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2026-64097",
    "datePublished": "2026-07-19T15:40:03.599Z",
    "dateReserved": "2026-07-19T07:54:57.033Z",
    "dateUpdated": "2026-07-20T13:43:17.391Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "epss": {
      "cve": "CVE-2026-64097",
      "date": "2026-07-21",
      "epss": "0.00129",
      "percentile": "0.02944"
    },
    "microsoft_vex": {
      "current_release_date": "2026-07-21T01:02:50.000Z",
      "cve": "CVE-2026-64097",
      "id": "msrc_CVE-2026-64097",
      "initial_release_date": "2026-07-21T01:02:50.000Z",
      "product_status:known_affected": "1",
      "source": "Microsoft CSAF VEX",
      "status": "final",
      "title": "drm/amd/display: Validate GPIO pin LUT table size before iterating",
      "url": "https://msrc.microsoft.com/csaf/vex/2026/msrc_cve-2026-64097.json",
      "version": "1"
    },
    "nvd": "{\"cve\":{\"id\":\"CVE-2026-64097\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2026-07-19T16:17:50.727\",\"lastModified\":\"2026-07-20T15:17:08.800\",\"vulnStatus\":\"Received\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"In the Linux kernel, the following vulnerability has been resolved:\\n\\ndrm/amd/display: Validate GPIO pin LUT table size before iterating\\n\\n[Why\u0026How]\\nThe GPIO pin table parsers in get_gpio_i2c_info() and\\nbios_parser_get_gpio_pin_info() derive an element count from the VBIOS\\ntable_header.structuresize field, then iterate over gpio_pin[] entries.\\nHowever, GET_IMAGE() only validates that the table header itself fits\\nwithin the BIOS image. If the VBIOS reports a structuresize larger than\\nthe actual mapped data, the loop reads past the end of the BIOS image,\\ncausing an out-of-bounds read.\\n\\nFix this by calling bios_get_image() to validate that the full claimed\\nstructuresize is accessible within the BIOS image before entering the\\nloop in both functions.\\n\\n(cherry picked from commit ba5e95b43b773ae1bf1f66ee6b31eb774e65afe3)\"}],\"affected\":[{\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"affectedData\":[{\"vendor\":\"Linux\",\"product\":\"Linux\",\"defaultStatus\":\"unaffected\",\"programFiles\":[\"drivers/gpu/drm/amd/display/dc/bios/bios_parser2.c\"],\"repo\":\"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\"versions\":[{\"version\":\"ae79c310b1a6f97429a5784b65f125d9cc9c95b1\",\"lessThan\":\"9900f6954be779011e7c2cd42addd87baf028bc5\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"ae79c310b1a6f97429a5784b65f125d9cc9c95b1\",\"lessThan\":\"fb30a3890d62fd50a95aef684faf64a307592e42\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"ae79c310b1a6f97429a5784b65f125d9cc9c95b1\",\"lessThan\":\"67461e0c15335894cc5d3b84cda823bf8cbdc886\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"ae79c310b1a6f97429a5784b65f125d9cc9c95b1\",\"lessThan\":\"7ca695b3122297b06a3ed605bbe1cd32c85d9f5a\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"ae79c310b1a6f97429a5784b65f125d9cc9c95b1\",\"lessThan\":\"f2a4827e980ba07de4391fa84d9c39a12726bdd7\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"ae79c310b1a6f97429a5784b65f125d9cc9c95b1\",\"lessThan\":\"86d2b20644b11d21fe52c596e6e922b4590a3e3f\",\"versionType\":\"git\",\"status\":\"affected\"}]},{\"vendor\":\"Linux\",\"product\":\"Linux\",\"defaultStatus\":\"affected\",\"programFiles\":[\"drivers/gpu/drm/amd/display/dc/bios/bios_parser2.c\"],\"repo\":\"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\"versions\":[{\"version\":\"4.15\",\"status\":\"affected\"},{\"version\":\"0\",\"lessThan\":\"4.15\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"6.1.175\",\"lessThanOrEqual\":\"6.1.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"6.6.142\",\"lessThanOrEqual\":\"6.6.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"6.12.92\",\"lessThanOrEqual\":\"6.12.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"6.18.34\",\"lessThanOrEqual\":\"6.18.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"7.0.11\",\"lessThanOrEqual\":\"7.0.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"7.1\",\"lessThanOrEqual\":\"*\",\"versionType\":\"original_commit_for_fix\",\"status\":\"unaffected\"}]}]}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"type\":\"Secondary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H\",\"baseScore\":7.8,\"baseSeverity\":\"HIGH\",\"attackVector\":\"LOCAL\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"LOW\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"HIGH\",\"integrityImpact\":\"HIGH\",\"availabilityImpact\":\"HIGH\"},\"exploitabilityScore\":1.8,\"impactScore\":5.9}]},\"references\":[{\"url\":\"https://git.kernel.org/stable/c/67461e0c15335894cc5d3b84cda823bf8cbdc886\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/7ca695b3122297b06a3ed605bbe1cd32c85d9f5a\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/86d2b20644b11d21fe52c596e6e922b4590a3e3f\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/9900f6954be779011e7c2cd42addd87baf028bc5\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/f2a4827e980ba07de4391fa84d9c39a12726bdd7\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/fb30a3890d62fd50a95aef684faf64a307592e42\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"}]}}",
    "redhat_vex": {
      "aggregate_severity": "None",
      "current_release_date": "2026-07-21T09:08:02+00:00",
      "cve": "CVE-2026-64097",
      "id": "CVE-2026-64097",
      "initial_release_date": "2026-07-19T00:00:00+00:00",
      "product_status:known_not_affected": "274",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "kernel: drm/amd/display: Validate GPIO pin LUT table size before iterating",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-64097.json",
      "version": "3"
    }
  }
}



Log in or create an account to share your comment.




Tags
Taxonomy of the tags.





Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


Detection rules are retrieved from Rulezet.