cve-2021-47420
Vulnerability from cvelistv5
Published
2024-05-21 15:04
Modified
2024-12-19 07:41
Severity ?
Summary
In the Linux kernel, the following vulnerability has been resolved: drm/amdkfd: fix a potential ttm->sg memory leak Memory is allocated for ttm->sg by kmalloc in kfd_mem_dmamap_userptr, but isn't freed by kfree in kfd_mem_dmaunmap_userptr. Free it!
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/7e5ce6029b627efb4a004746cfdc1eeff850e6eb
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/b072ef1215aca33186e3a10109e872e528a9e516
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/7e5ce6029b627efb4a004746cfdc1eeff850e6eb
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/b072ef1215aca33186e3a10109e872e528a9e516
Impacted products
Vendor Product Version
Linux Linux Version: 5.14
Show details on NVD website

To clipboard 

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2021-47420",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2024-06-11T17:26:39.842792Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2024-06-11T17:26:55.110Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      },
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-04T05:39:59.450Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://git.kernel.org/stable/c/7e5ce6029b627efb4a004746cfdc1eeff850e6eb"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://git.kernel.org/stable/c/b072ef1215aca33186e3a10109e872e528a9e516"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gpuvm.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "7e5ce6029b627efb4a004746cfdc1eeff850e6eb",
              "status": "affected",
              "version": "264fb4d332f5e76743818480e482464437837c52",
              "versionType": "git"
            },
            {
              "lessThan": "b072ef1215aca33186e3a10109e872e528a9e516",
              "status": "affected",
              "version": "264fb4d332f5e76743818480e482464437837c52",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gpuvm.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "5.14"
            },
            {
              "lessThan": "5.14",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.14.*",
              "status": "unaffected",
              "version": "5.14.12",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "5.15",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/amdkfd: fix a potential ttm-\u003esg memory leak\n\nMemory is allocated for ttm-\u003esg by kmalloc in kfd_mem_dmamap_userptr,\nbut isn\u0027t freed by kfree in kfd_mem_dmaunmap_userptr. Free it!"
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2024-12-19T07:41:38.652Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/7e5ce6029b627efb4a004746cfdc1eeff850e6eb"
        },
        {
          "url": "https://git.kernel.org/stable/c/b072ef1215aca33186e3a10109e872e528a9e516"
        }
      ],
      "title": "drm/amdkfd: fix a potential ttm-\u003esg memory leak",
      "x_generator": {
        "engine": "bippy-5f407fcff5a0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2021-47420",
    "datePublished": "2024-05-21T15:04:08.635Z",
    "dateReserved": "2024-05-21T14:58:30.820Z",
    "dateUpdated": "2024-12-19T07:41:38.652Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1",
  "vulnerability-lookup:meta": {
    "nvd": "{\"cve\":{\"id\":\"CVE-2021-47420\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2024-05-21T15:15:27.450\",\"lastModified\":\"2024-11-21T06:36:06.503\",\"vulnStatus\":\"Awaiting Analysis\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"In the Linux kernel, the following vulnerability has been resolved:\\n\\ndrm/amdkfd: fix a potential ttm-\u003esg memory leak\\n\\nMemory is allocated for ttm-\u003esg by kmalloc in kfd_mem_dmamap_userptr,\\nbut isn\u0027t freed by kfree in kfd_mem_dmaunmap_userptr. Free it!\"},{\"lang\":\"es\",\"value\":\" En el kernel de Linux, se resolvi\u00f3 la siguiente vulnerabilidad: drm/amdkfd: soluciona una posible p\u00e9rdida de memoria de ttm-\u0026gt;sg. La memoria se asigna para ttm-\u0026gt;sg mediante kmalloc en kfd_mem_dmamap_userptr, pero kfree no la libera en kfd_mem_dmaunmap_userptr. \u00a1Lib\u00e9rala!\"}],\"metrics\":{},\"references\":[{\"url\":\"https://git.kernel.org/stable/c/7e5ce6029b627efb4a004746cfdc1eeff850e6eb\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/b072ef1215aca33186e3a10109e872e528a9e516\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/7e5ce6029b627efb4a004746cfdc1eeff850e6eb\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\"},{\"url\":\"https://git.kernel.org/stable/c/b072ef1215aca33186e3a10109e872e528a9e516\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\"}]}}"
  }
}


Log in or create an account to share your comment.




Tags
Taxonomy of the tags.




Sightings

Author Source Type Date

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
  • Confirmed: The vulnerability is confirmed from an analyst perspective.
  • Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
  • Patched: This vulnerability was successfully patched by the user reporting the sighting.
  • Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
  • Not confirmed: The user expresses doubt about the veracity of the vulnerability.
  • Not patched: This vulnerability was not successfully patched by the user reporting the sighting.