fkie_cve-2025-21985
Vulnerability from fkie_nvd
Published
2025-04-01 16:15
Modified
2025-04-01 20:26
Severity ?
Summary
In the Linux kernel, the following vulnerability has been resolved: drm/amd/display: Fix out-of-bound accesses [WHAT & HOW] hpo_stream_to_link_encoder_mapping has size MAX_HPO_DP2_ENCODERS(=4), but location can have size up to 6. As a result, it is necessary to check location against MAX_HPO_DP2_ENCODERS. Similiarly, disp_cfg_stream_location can be used as an array index which should be 0..5, so the ASSERT's conditions should be less without equal.
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/36793d90d76f667d26c6dd025571481ee0c96abc
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/8adbb2a98b00926315fd513b5fe2596b5716b82d
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/9aedc776b11038f04f4641241bb7e877781e4aa4
Impacted products
Vendor Product Version


To clipboard 

{
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/amd/display: Fix out-of-bound accesses\n\n[WHAT \u0026 HOW]\nhpo_stream_to_link_encoder_mapping has size MAX_HPO_DP2_ENCODERS(=4),\nbut location can have size up to 6. As a result, it is necessary to\ncheck location against MAX_HPO_DP2_ENCODERS.\n\nSimiliarly, disp_cfg_stream_location can be used as an array index which\nshould be 0..5, so the ASSERT\u0027s conditions should be less without equal."
    },
    {
      "lang": "es",
      "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: drm/amd/display: Correcci\u00f3n de accesos fuera de los l\u00edmites [QU\u00c9 Y C\u00d3MO] hpo_stream_to_link_encoder_mapping tiene un tama\u00f1o de MAX_HPO_DP2_ENCODERS(=4), pero la ubicaci\u00f3n puede tener un tama\u00f1o de hasta 6. Por lo tanto, es necesario comparar la ubicaci\u00f3n con MAX_HPO_DP2_ENCODERS. De igual forma, disp_cfg_stream_location puede usarse como un \u00edndice de matriz que debe ser de 0 a 5, por lo que las condiciones de ASSERT deben ser menores sin igual."
    }
  ],
  "id": "CVE-2025-21985",
  "lastModified": "2025-04-01T20:26:01.990",
  "metrics": {},
  "published": "2025-04-01T16:15:29.910",
  "references": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/36793d90d76f667d26c6dd025571481ee0c96abc"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/8adbb2a98b00926315fd513b5fe2596b5716b82d"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/9aedc776b11038f04f4641241bb7e877781e4aa4"
    }
  ],
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Awaiting Analysis"
}


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