drm/amd/display: fix incorrect mpc_combine array size

{
  "id": "0d66af68c28b38f2ccc520ba248a2c02216a7a0113e05f9dc6e9c5276dde9f0a",
  "url": "https://osv.dev/vulnerability/CVE-2024-26914",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "drm/amd/display: fix incorrect mpc_combine array size",
    "summary": "In the Linux kernel, the following vulnerability has been resolved: drm/amd/display: fix incorrect mpc_combine array size [why] MAX_SURFACES is per stream, while MAX_PLANES is per asic. The mpc_combine is an array that records all the planes per asic. Therefore MAX_PLANES should be used as the array size. Using MAX_SURFACES causes array overflow when there are more than 3 planes. [how] Use the MAX_PLANES for the mpc_combine array size.",
    "evidence": "osv:CVE-2024-26914",
    "products": [
      {
        "name": {
          "value": "Kernel",
          "evidence": "/affected/1/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "6.7.6",
            "evidence": "/affected/1/ranges"
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        "affected_versions": []
      }
    ],
    "severity": "high",
    "structured": {
      "id": "CVE-2024-26914",
      "aliases": [
        "CVE-2024-26914"
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      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H"
        }
      ],
      "affected": [
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                {
                  "fixed": "39079fe8e660851abbafa90cd55cbf029210661f"
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          "database_specific": {
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        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
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                  "introduced": "4.15.0"
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                  "fixed": "6.7.6"
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          ],
          "package": {
            "name": "Kernel",
            "ecosystem": "Linux"
          },
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2024-26914.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:41.409409055Z",
      "provider": "osv",
      "references": [
        "https://git.kernel.org/stable/c/0bd8ef618a42d7e6ea3f701065264e15678025e3",
        "https://git.kernel.org/stable/c/39079fe8e660851abbafa90cd55cbf029210661f",
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/26xxx/CVE-2024-26914.json",
        "https://nvd.nist.gov/vuln/detail/CVE-2024-26914",
        "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
      ],
      "provider_metadata": {
        "cna_assigner": "Linux",
        "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/26xxx/CVE-2024-26914.json"
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    "related_cves": [
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        "value": "CVE-2024-26914",
        "evidence": "/id"
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    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
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  "source_id": "core-osv",
  "document_id": 508805,
  "published_at": "2024-04-17T15:59:24.453+00:00"
}