CVE-2025-38254 (GCVE-0-2025-38254)
Vulnerability from cvelistv5
Published
2025-07-09 10:42
Modified
2025-07-28 04:16
Severity ?
Summary
In the Linux kernel, the following vulnerability has been resolved: drm/amd/display: Add sanity checks for drm_edid_raw() When EDID is retrieved via drm_edid_raw(), it doesn't guarantee to return proper EDID bytes the caller wants: it may be either NULL (that leads to an Oops) or with too long bytes over the fixed size raw_edid array (that may lead to memory corruption). The latter was reported actually when connected with a bad adapter. Add sanity checks for drm_edid_raw() to address the above corner cases, and return EDID_BAD_INPUT accordingly. (cherry picked from commit 648d3f4d209725d51900d6a3ed46b7b600140cdf)
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/4b63507d7cd243574753c6b91f68516d9103f1de
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/6847b3b6e84ef37451c074e6a8db3fbd250c8dbf
Impacted products
Vendor Product Version
Linux Linux Version: 48edb2a4256eedf6c92eecf2bc7744e6ecb44b5e
Version: 48edb2a4256eedf6c92eecf2bc7744e6ecb44b5e
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   Linux Linux Version: 6.13
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{
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          "programFiles": [
            "drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_helpers.c"
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              "versionType": "semver"
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              "operator": "OR"
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      "descriptions": [
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          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/amd/display: Add sanity checks for drm_edid_raw()\n\nWhen EDID is retrieved via drm_edid_raw(), it doesn\u0027t guarantee to\nreturn proper EDID bytes the caller wants: it may be either NULL (that\nleads to an Oops) or with too long bytes over the fixed size raw_edid\narray (that may lead to memory corruption).  The latter was reported\nactually when connected with a bad adapter.\n\nAdd sanity checks for drm_edid_raw() to address the above corner\ncases, and return EDID_BAD_INPUT accordingly.\n\n(cherry picked from commit 648d3f4d209725d51900d6a3ed46b7b600140cdf)"
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2025-07-28T04:16:18.261Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/4b63507d7cd243574753c6b91f68516d9103f1de"
        },
        {
          "url": "https://git.kernel.org/stable/c/6847b3b6e84ef37451c074e6a8db3fbd250c8dbf"
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      ],
      "title": "drm/amd/display: Add sanity checks for drm_edid_raw()",
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  "cveMetadata": {
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    "assignerShortName": "Linux",
    "cveId": "CVE-2025-38254",
    "datePublished": "2025-07-09T10:42:32.641Z",
    "dateReserved": "2025-04-16T04:51:23.997Z",
    "dateUpdated": "2025-07-28T04:16:18.261Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
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  "vulnerability-lookup:meta": {
    "nvd": "{\"cve\":{\"id\":\"CVE-2025-38254\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2025-07-09T11:15:27.653\",\"lastModified\":\"2025-07-10T13:17:30.017\",\"vulnStatus\":\"Awaiting Analysis\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"In the Linux kernel, the following vulnerability has been resolved:\\n\\ndrm/amd/display: Add sanity checks for drm_edid_raw()\\n\\nWhen EDID is retrieved via drm_edid_raw(), it doesn\u0027t guarantee to\\nreturn proper EDID bytes the caller wants: it may be either NULL (that\\nleads to an Oops) or with too long bytes over the fixed size raw_edid\\narray (that may lead to memory corruption).  The latter was reported\\nactually when connected with a bad adapter.\\n\\nAdd sanity checks for drm_edid_raw() to address the above corner\\ncases, and return EDID_BAD_INPUT accordingly.\\n\\n(cherry picked from commit 648d3f4d209725d51900d6a3ed46b7b600140cdf)\"},{\"lang\":\"es\",\"value\":\"En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: drm/amd/display: Se han a\u00f1adido comprobaciones de seguridad para drm_edid_raw(). Cuando se recupera el EDID mediante drm_edid_raw(), no se garantiza la devoluci\u00f3n de los bytes de EDID correctos que el usuario solicita: puede ser nulo (lo que provoca un error) o con bytes demasiado largos que exceden el tama\u00f1o fijo de la matriz raw_edid (lo que puede provocar corrupci\u00f3n de memoria). Esto \u00faltimo se inform\u00f3 al conectar con un adaptador defectuoso. Se han a\u00f1adido comprobaciones de seguridad para drm_edid_raw() para abordar los casos especiales mencionados y devolver EDID_BAD_INPUT en consecuencia. (Seleccionado del commit 648d3f4d209725d51900d6a3ed46b7b600140cdf)\"}],\"metrics\":{},\"references\":[{\"url\":\"https://git.kernel.org/stable/c/4b63507d7cd243574753c6b91f68516d9103f1de\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/6847b3b6e84ef37451c074e6a8db3fbd250c8dbf\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"}]}}"
  }
}


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