CVE-2021-47657 (GCVE-0-2021-47657)
Vulnerability from cvelistv5
Published
2025-02-26 01:54
Modified
2025-05-04 12:41
Severity ?
Summary
In the Linux kernel, the following vulnerability has been resolved: drm/virtio: Ensure that objs is not NULL in virtio_gpu_array_put_free() If virtio_gpu_object_shmem_init() fails (e.g. due to fault injection, as it happened in the bug report by syzbot), virtio_gpu_array_put_free() could be called with objs equal to NULL. Ensure that objs is not NULL in virtio_gpu_array_put_free(), or otherwise return from the function.
Impacted products
Vendor Product Version
Linux Linux Version: 377f8331d0565e6f71ba081c894029a92d0c7e77
Version: 377f8331d0565e6f71ba081c894029a92d0c7e77
Version: 377f8331d0565e6f71ba081c894029a92d0c7e77
Version: 377f8331d0565e6f71ba081c894029a92d0c7e77
Version: 244dbb4abe123779ec30e7c6ca283a681aba5c94
Version: 1016c0f62f73d5d2c3a5d1ad1e1fb0cdce1993ae
Create a notification for this product.
   Linux Linux Version: 5.13
Create a notification for this product.
Show details on NVD website


{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/gpu/drm/virtio/virtgpu_gem.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "b094fece3810c71ceee6f0921676cb65d4e68c5a",
              "status": "affected",
              "version": "377f8331d0565e6f71ba081c894029a92d0c7e77",
              "versionType": "git"
            },
            {
              "lessThan": "ac92b474eeeed75b8660374ba1d129a121c09da8",
              "status": "affected",
              "version": "377f8331d0565e6f71ba081c894029a92d0c7e77",
              "versionType": "git"
            },
            {
              "lessThan": "abc9ad36df16e27ac1c665085157f1a082d39bac",
              "status": "affected",
              "version": "377f8331d0565e6f71ba081c894029a92d0c7e77",
              "versionType": "git"
            },
            {
              "lessThan": "6b79f96f4a23846516e5e6e4dd37fc06f43a60dd",
              "status": "affected",
              "version": "377f8331d0565e6f71ba081c894029a92d0c7e77",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "244dbb4abe123779ec30e7c6ca283a681aba5c94",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "1016c0f62f73d5d2c3a5d1ad1e1fb0cdce1993ae",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/gpu/drm/virtio/virtgpu_gem.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "5.13"
            },
            {
              "lessThan": "5.13",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.15.*",
              "status": "unaffected",
              "version": "5.15.32",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.16.*",
              "status": "unaffected",
              "version": "5.16.18",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.17.*",
              "status": "unaffected",
              "version": "5.17.1",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "5.18",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.15.32",
                  "versionStartIncluding": "5.13",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.16.18",
                  "versionStartIncluding": "5.13",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.17.1",
                  "versionStartIncluding": "5.13",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.18",
                  "versionStartIncluding": "5.13",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionStartIncluding": "5.11.20",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionStartIncluding": "5.12.3",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/virtio: Ensure that objs is not NULL in virtio_gpu_array_put_free()\n\nIf virtio_gpu_object_shmem_init() fails (e.g. due to fault injection, as it\nhappened in the bug report by syzbot), virtio_gpu_array_put_free() could be\ncalled with objs equal to NULL.\n\nEnsure that objs is not NULL in virtio_gpu_array_put_free(), or otherwise\nreturn from the function."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2025-05-04T12:41:49.819Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/b094fece3810c71ceee6f0921676cb65d4e68c5a"
        },
        {
          "url": "https://git.kernel.org/stable/c/ac92b474eeeed75b8660374ba1d129a121c09da8"
        },
        {
          "url": "https://git.kernel.org/stable/c/abc9ad36df16e27ac1c665085157f1a082d39bac"
        },
        {
          "url": "https://git.kernel.org/stable/c/6b79f96f4a23846516e5e6e4dd37fc06f43a60dd"
        }
      ],
      "title": "drm/virtio: Ensure that objs is not NULL in virtio_gpu_array_put_free()",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2021-47657",
    "datePublished": "2025-02-26T01:54:20.727Z",
    "dateReserved": "2025-02-26T01:48:21.521Z",
    "dateUpdated": "2025-05-04T12:41:49.819Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1",
  "vulnerability-lookup:meta": {
    "nvd": "{\"cve\":{\"id\":\"CVE-2021-47657\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2025-02-26T06:37:07.467\",\"lastModified\":\"2025-03-18T18:50:28.090\",\"vulnStatus\":\"Analyzed\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"In the Linux kernel, the following vulnerability has been resolved:\\n\\ndrm/virtio: Ensure that objs is not NULL in virtio_gpu_array_put_free()\\n\\nIf virtio_gpu_object_shmem_init() fails (e.g. due to fault injection, as it\\nhappened in the bug report by syzbot), virtio_gpu_array_put_free() could be\\ncalled with objs equal to NULL.\\n\\nEnsure that objs is not NULL in virtio_gpu_array_put_free(), or otherwise\\nreturn from the function.\"},{\"lang\":\"es\",\"value\":\"En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: drm/virtio: Aseg\u00farese de que objs no sea NULL en virtio_gpu_array_put_free() Si virtio_gpu_object_shmem_init() falla (por ejemplo, debido a la inyecci\u00f3n de fallos, como sucedi\u00f3 en el informe de error de syzbot), se podr\u00eda llamar a virtio_gpu_array_put_free() con objs igual a NULL. Aseg\u00farese de que objs no sea NULL en virtio_gpu_array_put_free() o, de lo contrario, regrese de la funci\u00f3n.\"}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"nvd@nist.gov\",\"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}]},\"weaknesses\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-476\"}]}],\"configurations\":[{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"5.11.20\",\"versionEndExcluding\":\"5.12\",\"matchCriteriaId\":\"CC8679E8-F4E0-4BBF-8682-F0CDCBC99C1E\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"5.12.3\",\"versionEndExcluding\":\"5.15.32\",\"matchCriteriaId\":\"8A712A85-BED7-44CD-A617-EFD0ABBF4FCC\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"5.16\",\"versionEndExcluding\":\"5.16.18\",\"matchCriteriaId\":\"C86410A0-E312-4F41-93E9-929EAFB31757\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"5.17\",\"versionEndExcluding\":\"5.17.1\",\"matchCriteriaId\":\"3004D9BF-0093-4C9C-8560-F3E91AFAE409\"}]}]}],\"references\":[{\"url\":\"https://git.kernel.org/stable/c/6b79f96f4a23846516e5e6e4dd37fc06f43a60dd\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/abc9ad36df16e27ac1c665085157f1a082d39bac\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/ac92b474eeeed75b8660374ba1d129a121c09da8\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/b094fece3810c71ceee6f0921676cb65d4e68c5a\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]}]}}"
  }
}


Log in or create an account to share your comment.




Tags
Taxonomy of the tags.


Loading…

Loading…

Loading…

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.


Loading…