{
  "id": "CVE-2021-47655",
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "published": "2025-02-26T06:37:07.267",
  "lastModified": "2025-03-18T18:50:02.227",
  "vulnStatus": "Analyzed",
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nmedia: venus: vdec: fixed possible memory leak issue\n\nThe venus_helper_alloc_dpb_bufs() implementation allows an early return\non an error path when checking the id from ida_alloc_min() which would\nnot release the earlier buffer allocation.\n\nMove the direct kfree() from the error checking of dma_alloc_attrs() to\nthe common fail path to ensure that allocations are released on all\nerror paths in this function.\n\nAddresses-Coverity: 1494120 (\"Resource leak\")"
    },
    {
      "lang": "es",
      "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: media: venus: vdec: se ha corregido un posible problema de p\u00e9rdida de memoria La implementaci\u00f3n de venus_helper_alloc_dpb_bufs() permite un retorno temprano a una ruta de error al verificar el id de ida_alloc_min(), lo que no liberar\u00eda la asignaci\u00f3n de b\u00fafer anterior. Mueva el kfree() directo de la verificaci\u00f3n de errores de dma_alloc_attrs() a la ruta de error com\u00fan para garantizar que se liberen las asignaciones en todas las rutas de error en esta funci\u00f3n. Addresses-Coverity: 1494120 (\"Fuga de recursos\")"
    }
  ],
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        "source": "nvd@nist.gov",
        "type": "Primary",
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          "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
      }
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  },
  "weaknesses": [
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      "type": "Primary",
      "description": [
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          "lang": "en",
          "value": "CWE-401"
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      "url": "https://git.kernel.org/stable/c/55bccafc246b2e64763a155ec454470c07a54a6e",
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