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FKIE_CVE-2021-47057

Vulnerability from fkie_nvd - Published: 2024-02-29 23:15 - Updated: 2026-06-17 04:16
Severity
5.5 (Medium) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Summary
In the Linux kernel, the following vulnerability has been resolved: crypto: sun8i-ss - Fix memory leak of object d when dma_iv fails to map In the case where the dma_iv mapping fails, the return error path leaks the memory allocated to object d. Fix this by adding a new error return label and jumping to this to ensure d is free'd before the return. Addresses-Coverity: ("Resource leak")
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/617ec35ed51f731a593ae7274228ef2cfc9cb781Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/6516cb852d704ff8d615de1f93cd443a99736c3dPatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/98b5ef3e97b16eaeeedb936f8bda3594ff84a70ePatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/e1f2d739849c3239df1ea3f97d40bade4b808410Patch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/617ec35ed51f731a593ae7274228ef2cfc9cb781Patch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/6516cb852d704ff8d615de1f93cd443a99736c3dPatch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/98b5ef3e97b16eaeeedb936f8bda3594ff84a70ePatch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/e1f2d739849c3239df1ea3f97d40bade4b808410Patch
Impacted products
Vendor Product Version
linux linux_kernel *
linux linux_kernel *
linux linux_kernel *
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/crypto/allwinner/sun8i-ss/sun8i-ss-prng.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "617ec35ed51f731a593ae7274228ef2cfc9cb781",
              "status": "affected",
              "version": "ac2614d721dea2ff273af19c6c5d508d58a2bb3e",
              "versionType": "git"
            },
            {
              "lessThan": "e1f2d739849c3239df1ea3f97d40bade4b808410",
              "status": "affected",
              "version": "ac2614d721dea2ff273af19c6c5d508d58a2bb3e",
              "versionType": "git"
            },
            {
              "lessThan": "6516cb852d704ff8d615de1f93cd443a99736c3d",
              "status": "affected",
              "version": "ac2614d721dea2ff273af19c6c5d508d58a2bb3e",
              "versionType": "git"
            },
            {
              "lessThan": "98b5ef3e97b16eaeeedb936f8bda3594ff84a70e",
              "status": "affected",
              "version": "ac2614d721dea2ff273af19c6c5d508d58a2bb3e",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/crypto/allwinner/sun8i-ss/sun8i-ss-prng.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "5.10"
            },
            {
              "lessThan": "5.10",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.10.*",
              "status": "unaffected",
              "version": "5.10.37",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.11.*",
              "status": "unaffected",
              "version": "5.11.21",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.12.*",
              "status": "unaffected",
              "version": "5.12.4",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "5.13",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "4E433B72-3E3A-435E-9A66-80D28868BDF2",
              "versionEndExcluding": "5.10.37",
              "versionStartIncluding": "5.10",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "8CBB94EC-EC33-4464-99C5-03E5542715F0",
              "versionEndExcluding": "5.11.21",
              "versionStartIncluding": "5.11",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "D8C7052F-1B7B-4327-9C2B-84EBF3243838",
              "versionEndExcluding": "5.12.4",
              "versionStartIncluding": "5.12",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ncrypto: sun8i-ss - Fix memory leak of object d when dma_iv fails to map\n\nIn the case where the dma_iv mapping fails, the return error path leaks\nthe memory allocated to object d.  Fix this by adding a new error return\nlabel and jumping to this to ensure d is free\u0027d before the return.\n\nAddresses-Coverity: (\"Resource leak\")"
    },
    {
      "lang": "es",
      "value": "En el kernel de Linux, se resolvi\u00f3 la siguiente vulnerabilidad: crypto: sun8i-ss: corrige la p\u00e9rdida de memoria del objeto d cuando dma_iv no se puede asignar. En el caso de que falle la asignaci\u00f3n de dma_iv, la ruta de error de retorno pierde la memoria asignada al objeto d. Solucione este problema agregando una nueva etiqueta de devoluci\u00f3n de error y saltando a ella para asegurarse de que d est\u00e9 libre antes de la devoluci\u00f3n. Direcciones-Cobertura: (\"Fuga de recursos\")"
    }
  ],
  "id": "CVE-2021-47057",
  "lastModified": "2026-06-17T04:16:20.223",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "LOCAL",
          "availabilityImpact": "HIGH",
          "baseScore": 5.5,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "privilegesRequired": "LOW",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 1.8,
        "impactScore": 3.6,
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "type": "Secondary"
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2021-47057",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "role": "CISA Coordinator",
          "timestamp": "2024-03-05T20:56:30.683698Z",
          "version": "2.0.3"
        }
      }
    ]
  },
  "published": "2024-02-29T23:15:07.590",
  "references": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/617ec35ed51f731a593ae7274228ef2cfc9cb781"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/6516cb852d704ff8d615de1f93cd443a99736c3d"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/98b5ef3e97b16eaeeedb936f8bda3594ff84a70e"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/e1f2d739849c3239df1ea3f97d40bade4b808410"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/617ec35ed51f731a593ae7274228ef2cfc9cb781"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/6516cb852d704ff8d615de1f93cd443a99736c3d"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/98b5ef3e97b16eaeeedb936f8bda3594ff84a70e"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/e1f2d739849c3239df1ea3f97d40bade4b808410"
    }
  ],
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Analyzed",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-770"
        }
      ],
      "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
      "type": "Secondary"
    }
  ]
}



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