drm/amd/display: Fix null check of pipe_ctx->plane_state for update_dchubp_dpp

{
  "id": "6cc71df03186fecbd4864b8a81c7b010ff3d6ec38d4d894a5ffb35182739bfb5",
  "url": "https://osv.dev/vulnerability/CVE-2025-38021",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "drm/amd/display: Fix null check of pipe_ctx->plane_state for update_dchubp_dpp",
    "summary": "In the Linux kernel, the following vulnerability has been resolved: drm/amd/display: Fix null check of pipe_ctx->plane_state for update_dchubp_dpp Similar to commit 6a057072ddd1 (\"drm/amd/display: Fix null check for pipe_ctx->plane_state in dcn20_program_pipe\") that addresses a null pointer dereference on dcn20_update_dchubp_dpp. This is the same function hooked for update_dchubp_dpp in dcn401, with the same issue. Fix possible null pointer deference on dcn401_program_pipe too. (cherry picked from commit d8d47f739752227957d8efc0cb894761bfe1d879)",
    "evidence": "osv:CVE-2025-38021",
    "products": [
      {
        "name": {
          "value": "Kernel",
          "evidence": "/affected/1/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "6.14.8",
            "evidence": "/affected/1/ranges"
          }
        ],
        "affected_versions": []
      }
    ],
    "severity": "unknown",
    "structured": {
      "id": "CVE-2025-38021",
      "aliases": [
        "CVE-2025-38021"
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
              "type": "GIT",
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                  "fixed": "4679061fb25344d6010ce7b9bebac21c91a0b75a"
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                {
                  "fixed": "a3b7e65b6be59e686e163fa1ceb0922f996897c2"
                }
              ]
            }
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2025-38021.json"
          }
        },
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "6.14.0"
                },
                {
                  "fixed": "6.14.8"
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              ]
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          ],
          "package": {
            "name": "Kernel",
            "ecosystem": "Linux"
          },
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2025-38021.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:42.469978663Z",
      "provider": "osv",
      "references": [
        "https://git.kernel.org/stable/c/4679061fb25344d6010ce7b9bebac21c91a0b75a",
        "https://git.kernel.org/stable/c/a3b7e65b6be59e686e163fa1ceb0922f996897c2",
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/38xxx/CVE-2025-38021.json",
        "https://nvd.nist.gov/vuln/detail/CVE-2025-38021",
        "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/2025/38xxx/CVE-2025-38021.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2025-38021",
        "evidence": "/id"
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    ],
    "security_relevant": true,
    "severity_evidence": null
  },
  "source_id": "core-osv",
  "document_id": 510251,
  "published_at": "2025-06-18T09:28:28.563+00:00"
}