CVE-2024-49970

{
  "id": "CVE-2024-49970",
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "published": "2024-10-21T18:15:17.973",
  "lastModified": "2026-10-30T13:17:40.207",
  "vulnStatus": "Modified",
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/amd/display: Implement bounds check for stream encoder creation in DCN401\n\n'stream_enc_regs' array is an array of dcn10_stream_enc_registers\nstructures. The array is initialized with four elements, corresponding\nto the four calls to stream_enc_regs() in the array initializer. This\nmeans that valid indices for this array are 0, 1, 2, and 3.\n\nThe error message 'stream_enc_regs' 4 <= 5 below, is indicating that\nthere is an attempt to access this array with an index of 5, which is\nout of bounds. This could lead to undefined behavior\n\nHere, eng_id is used as an index to access the stream_enc_regs array. If\neng_id is 5, this would result in an out-of-bounds access on the\nstream_enc_regs array.\n\nThus fixing Buffer overflow error in dcn401_stream_encoder_create\n\nFound by smatch:\ndrivers/gpu/drm/amd/amdgpu/../display/dc/resource/dcn401/dcn401_resource.c:1209 dcn401_stream_encoder_create() error: buffer overflow 'stream_enc_regs' 4 <= 5"
    },
    {
      "lang": "es",
      "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: drm/amd/display: Implementar comprobación de los límites para la creación de codificadores de flujo en DCN401 La matriz 'stream_enc_regs' es una matriz de estructuras dcn10_stream_enc_registers. La matriz se inicializa con cuatro elementos, que corresponden a las cuatro llamadas a stream_enc_regs() en el inicializador de la matriz. Esto significa que los índices válidos para esta matriz son 0, 1, 2 y 3. El mensaje de error 'stream_enc_regs' 4 &lt;= 5 a continuación indica que hay un intento de acceder a esta matriz con un índice de 5, que está fuera de los límites. Esto podría provocar un comportamiento indefinido Aquí, eng_id se utiliza como índice para acceder a la matriz stream_enc_regs. Si eng_id es 5, esto daría como resultado un acceso fuera de los límites en la matriz stream_enc_regs. De esta forma se soluciona el error de desbordamiento de búfer en dcn401_stream_encoder_create. Encontrado por smatch: drivers/gpu/drm/amd/amdgpu/../display/dc/resource/dcn401/dcn401_resource.c:1209 Error en dcn401_stream_encoder_create(): desbordamiento de búfer 'stream_enc_regs' 4 &lt;= 5"
    }
  ],
  "affected": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "affectedData": [
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "unaffected",
          "programFiles": [
            "drivers/gpu/drm/amd/display/dc/resource/dcn401/dcn401_resource.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "versions": [
            {
              "version": "4562236b3bc0a28aeb6ee93b2d8a849a4c4e1c7c",
              "lessThan": "664f12d9ebdfdfb9c05e5cb31f268e92fb9042fe",
              "versionType": "git",
              "status": "affected"
            },
            {
              "version": "4562236b3bc0a28aeb6ee93b2d8a849a4c4e1c7c",
              "lessThan": "00872dcc2a3e4a42155c2f3b7f21952a62301035",
              "versionType": "git",
              "status": "affected"
            },
            {
              "version": "4562236b3bc0a28aeb6ee93b2d8a849a4c4e1c7c",
              "lessThan": "b219b46ad42df1dea9258788bcfea37181f3ccb2",
              "versionType": "git",
              "status": "affected"
            },
            {
              "version": "4562236b3bc0a28aeb6ee93b2d8a849a4c4e1c7c",
              "lessThan": "bdf606810210e8e07a0cdf1af3c467291363b295",
              "versionType": "git",
              "status": "affected"
            }
          ]
        },
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "affected",
          "programFiles": [
            "drivers/gpu/drm/amd/display/dc/resource/dcn401/dcn401_resource.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": "6.1.191",
              "lessThanOrEqual": "6.1.*",
              "versionType": "semver",
              "status": "unaffected"
            },
            {
              "version": "6.6.160",
              "lessThanOrEqual": "6.6.*",
              "versionType": "semver",
              "status": "unaffected"
            },
            {
              "version": "6.11.3",
              "lessThanOrEqual": "6.11.*",
              "versionType": "semver",
              "status": "unaffected"
            },
            {
              "version": "6.12",
              "lessThanOrEqual": "*",
              "versionType": "original_commit_for_fix",
              "status": "unaffected"
            }
          ]
        }
      ]
    }
  ],
  "metrics": {
    "cvssMetricV31": [
      {
        "source": "[email protected]",
        "type": "Primary",
        "cvssData": {
          "version": "3.1",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
          "baseScore": 5.5,
          "baseSeverity": "MEDIUM",
          "attackVector": "LOCAL",
          "attackComplexity": "LOW",
          "privilegesRequired": "LOW",
          "userInteraction": "NONE",
          "scope": "UNCHANGED",
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "availabilityImpact": "HIGH"
        },
        "exploitabilityScore": 1.8,
        "impactScore": 3.6
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "timestamp": "2024-10-22T13:33:55.440679Z",
          "id": "CVE-2024-49970",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
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              "technicalImpact": "partial"
            }
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          "role": "CISA Coordinator",
          "version": "2.0.3"
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  },
  "weaknesses": [
    {
      "source": "[email protected]",
      "type": "Primary",
      "description": [
        {
          "lang": "en",
          "value": "CWE-129"
        }
      ]
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "operator": "OR",
          "negate": false,
          "cpeMatch": [
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  "references": [
    {
      "url": "https://git.kernel.org/stable/c/00872dcc2a3e4a42155c2f3b7f21952a62301035",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
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      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
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}