Vulnerability-Lookup

GHSA-747F-WH5X-MP2P

Vulnerability from github – Published: 2024-05-21 15:31 – Updated: 2024-12-30 21:30

Details

In the Linux kernel, the following vulnerability has been resolved:

net: usb: fix possible use-after-free in smsc75xx_bind

The commit 46a8b29c6306 ("net: usb: fix memory leak in smsc75xx_bind") fails to clean up the work scheduled in smsc75xx_reset-> smsc75xx_set_multicast, which leads to use-after-free if the work is scheduled to start after the deallocation. In addition, this patch also removes a dangling pointer - dev->data[0].

This patch calls cancel_work_sync to cancel the scheduled work and set the dangling pointer to NULL.

Severity

7.8 (High)


                  
                    CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Show details on source website

JSON

To clipboard

{
  "affected": [],
  "aliases": [
    "CVE-2021-47239"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-416"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2024-05-21T15:15:13Z",
    "severity": "HIGH"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet: usb: fix possible use-after-free in smsc75xx_bind\n\nThe commit 46a8b29c6306 (\"net: usb: fix memory leak in smsc75xx_bind\")\nfails to clean up the work scheduled in smsc75xx_reset-\u003e\nsmsc75xx_set_multicast, which leads to use-after-free if the work is\nscheduled to start after the deallocation. In addition, this patch\nalso removes a dangling pointer - dev-\u003edata[0].\n\nThis patch calls cancel_work_sync to cancel the scheduled work and set\nthe dangling pointer to NULL.",
  "id": "GHSA-747f-wh5x-mp2p",
  "modified": "2024-12-30T21:30:46Z",
  "published": "2024-05-21T15:31:40Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2021-47239"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/14616c372a7be01a2fb8c56c9d8debd232b9e43d"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/2fc8300c9cfa5167fcb5b1a2a07db6f53e82f59b"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/4252bf6c2b245f47011098113d405ffad6ad5d5b"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/56b786d86694e079d8aad9b314e015cd4ac02a3d"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/570a52cf3e01d19f7fd1a251dfc52b0cd86c13cb"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/64160d1741a3de5204d1a822e058e0b4cc526504"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/7cc8b2e05fcea6edd022d26e82091d781af8fd9b"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/c4e3be2e7742863e454ce31faf8fd0109c00050b"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ]
}

CVE-2021-47239 (GCVE-0-2021-47239)

Vulnerability from cvelistv5 – Published: 2024-05-21 14:19 – Updated: 2026-05-11 13:50

Title

net: usb: fix possible use-after-free in smsc75xx_bind

Summary

In the Linux kernel, the following vulnerability has been resolved: net: usb: fix possible use-after-free in smsc75xx_bind The commit 46a8b29c6306 ("net: usb: fix memory leak in smsc75xx_bind") fails to clean up the work scheduled in smsc75xx_reset-> smsc75xx_set_multicast, which leads to use-after-free if the work is scheduled to start after the deallocation. In addition, this patch also removes a dangling pointer - dev->data[0]. This patch calls cancel_work_sync to cancel the scheduled work and set the dangling pointer to NULL.

Severity

No CVSS data available.

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2024-09-10 15:40 UTC

Assigner

Linux mitre root

References

8 references

URL	Tags
https://git.kernel.org/stable/c/7cc8b2e05fcea6edd…
https://git.kernel.org/stable/c/64160d1741a3de520…
https://git.kernel.org/stable/c/c4e3be2e7742863e4…
https://git.kernel.org/stable/c/2fc8300c9cfa5167f…
https://git.kernel.org/stable/c/4252bf6c2b245f470…
https://git.kernel.org/stable/c/570a52cf3e01d19f7…
https://git.kernel.org/stable/c/14616c372a7be01a2…
https://git.kernel.org/stable/c/56b786d86694e079d…

Impacted products

2 products

Vendor	Product	Version
Linux	Linux	Affected: 200dbfcad8011e50c3cec269ed7b980836eeb1fa , < 7cc8b2e05fcea6edd022d26e82091d781af8fd9b (git) Affected: 22c840596af0c09068b6cf948616e6496e59e07f , < 64160d1741a3de5204d1a822e058e0b4cc526504 (git) Affected: 9e6b8c1ff9d997e1fa16cbd2d60739adf6dc1bbc , < c4e3be2e7742863e454ce31faf8fd0109c00050b (git) Affected: 9e6a3eccb28779710cbbafc4f4258d92509c6d07 , < 2fc8300c9cfa5167fcb5b1a2a07db6f53e82f59b (git) Affected: b95fb96e6339e34694dd578fb6bde3575b01af17 , < 4252bf6c2b245f47011098113d405ffad6ad5d5b (git) Affected: 635ac38b36255d3cfb8312cf7c471334f4d537e0 , < 570a52cf3e01d19f7fd1a251dfc52b0cd86c13cb (git) Affected: 70c886ac93f87ae7214a0c69151a28a8075dd95b , < 14616c372a7be01a2fb8c56c9d8debd232b9e43d (git) Affected: 46a8b29c6306d8bbfd92b614ef65a47c900d8e70 , < 56b786d86694e079d8aad9b314e015cd4ac02a3d (git)
Linux	Linux	Affected: 4.4.271 , < 4.4.274 (semver) Affected: 4.9.271 , < 4.9.274 (semver) Affected: 4.14.235 , < 4.14.238 (semver) Affected: 4.19.193 , < 4.19.196 (semver) Affected: 5.4.124 , < 5.4.128 (semver) Affected: 5.10.42 , < 5.10.46 (semver) Affected: 5.12.9 , < 5.12.13 (semver)

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-04T05:32:07.920Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://git.kernel.org/stable/c/7cc8b2e05fcea6edd022d26e82091d781af8fd9b"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://git.kernel.org/stable/c/64160d1741a3de5204d1a822e058e0b4cc526504"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://git.kernel.org/stable/c/c4e3be2e7742863e454ce31faf8fd0109c00050b"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://git.kernel.org/stable/c/2fc8300c9cfa5167fcb5b1a2a07db6f53e82f59b"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://git.kernel.org/stable/c/4252bf6c2b245f47011098113d405ffad6ad5d5b"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://git.kernel.org/stable/c/570a52cf3e01d19f7fd1a251dfc52b0cd86c13cb"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://git.kernel.org/stable/c/14616c372a7be01a2fb8c56c9d8debd232b9e43d"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://git.kernel.org/stable/c/56b786d86694e079d8aad9b314e015cd4ac02a3d"
          }
        ],
        "title": "CVE Program Container"
      },
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2021-47239",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2024-09-10T15:40:00.710972Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2024-09-11T17:33:12.603Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/net/usb/smsc75xx.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "7cc8b2e05fcea6edd022d26e82091d781af8fd9b",
              "status": "affected",
              "version": "200dbfcad8011e50c3cec269ed7b980836eeb1fa",
              "versionType": "git"
            },
            {
              "lessThan": "64160d1741a3de5204d1a822e058e0b4cc526504",
              "status": "affected",
              "version": "22c840596af0c09068b6cf948616e6496e59e07f",
              "versionType": "git"
            },
            {
              "lessThan": "c4e3be2e7742863e454ce31faf8fd0109c00050b",
              "status": "affected",
              "version": "9e6b8c1ff9d997e1fa16cbd2d60739adf6dc1bbc",
              "versionType": "git"
            },
            {
              "lessThan": "2fc8300c9cfa5167fcb5b1a2a07db6f53e82f59b",
              "status": "affected",
              "version": "9e6a3eccb28779710cbbafc4f4258d92509c6d07",
              "versionType": "git"
            },
            {
              "lessThan": "4252bf6c2b245f47011098113d405ffad6ad5d5b",
              "status": "affected",
              "version": "b95fb96e6339e34694dd578fb6bde3575b01af17",
              "versionType": "git"
            },
            {
              "lessThan": "570a52cf3e01d19f7fd1a251dfc52b0cd86c13cb",
              "status": "affected",
              "version": "635ac38b36255d3cfb8312cf7c471334f4d537e0",
              "versionType": "git"
            },
            {
              "lessThan": "14616c372a7be01a2fb8c56c9d8debd232b9e43d",
              "status": "affected",
              "version": "70c886ac93f87ae7214a0c69151a28a8075dd95b",
              "versionType": "git"
            },
            {
              "lessThan": "56b786d86694e079d8aad9b314e015cd4ac02a3d",
              "status": "affected",
              "version": "46a8b29c6306d8bbfd92b614ef65a47c900d8e70",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/net/usb/smsc75xx.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "4.4.274",
              "status": "affected",
              "version": "4.4.271",
              "versionType": "semver"
            },
            {
              "lessThan": "4.9.274",
              "status": "affected",
              "version": "4.9.271",
              "versionType": "semver"
            },
            {
              "lessThan": "4.14.238",
              "status": "affected",
              "version": "4.14.235",
              "versionType": "semver"
            },
            {
              "lessThan": "4.19.196",
              "status": "affected",
              "version": "4.19.193",
              "versionType": "semver"
            },
            {
              "lessThan": "5.4.128",
              "status": "affected",
              "version": "5.4.124",
              "versionType": "semver"
            },
            {
              "lessThan": "5.10.46",
              "status": "affected",
              "version": "5.10.42",
              "versionType": "semver"
            },
            {
              "lessThan": "5.12.13",
              "status": "affected",
              "version": "5.12.9",
              "versionType": "semver"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "4.4.274",
                  "versionStartIncluding": "4.4.271",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "4.9.274",
                  "versionStartIncluding": "4.9.271",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "4.14.238",
                  "versionStartIncluding": "4.14.235",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "4.19.196",
                  "versionStartIncluding": "4.19.193",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.4.128",
                  "versionStartIncluding": "5.4.124",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.10.46",
                  "versionStartIncluding": "5.10.42",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.12.13",
                  "versionStartIncluding": "5.12.9",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet: usb: fix possible use-after-free in smsc75xx_bind\n\nThe commit 46a8b29c6306 (\"net: usb: fix memory leak in smsc75xx_bind\")\nfails to clean up the work scheduled in smsc75xx_reset-\u003e\nsmsc75xx_set_multicast, which leads to use-after-free if the work is\nscheduled to start after the deallocation. In addition, this patch\nalso removes a dangling pointer - dev-\u003edata[0].\n\nThis patch calls cancel_work_sync to cancel the scheduled work and set\nthe dangling pointer to NULL."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-05-11T13:50:39.132Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/7cc8b2e05fcea6edd022d26e82091d781af8fd9b"
        },
        {
          "url": "https://git.kernel.org/stable/c/64160d1741a3de5204d1a822e058e0b4cc526504"
        },
        {
          "url": "https://git.kernel.org/stable/c/c4e3be2e7742863e454ce31faf8fd0109c00050b"
        },
        {
          "url": "https://git.kernel.org/stable/c/2fc8300c9cfa5167fcb5b1a2a07db6f53e82f59b"
        },
        {
          "url": "https://git.kernel.org/stable/c/4252bf6c2b245f47011098113d405ffad6ad5d5b"
        },
        {
          "url": "https://git.kernel.org/stable/c/570a52cf3e01d19f7fd1a251dfc52b0cd86c13cb"
        },
        {
          "url": "https://git.kernel.org/stable/c/14616c372a7be01a2fb8c56c9d8debd232b9e43d"
        },
        {
          "url": "https://git.kernel.org/stable/c/56b786d86694e079d8aad9b314e015cd4ac02a3d"
        }
      ],
      "title": "net: usb: fix possible use-after-free in smsc75xx_bind",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2021-47239",
    "datePublished": "2024-05-21T14:19:39.705Z",
    "dateReserved": "2024-04-10T18:59:19.532Z",
    "dateUpdated": "2026-05-11T13:50:39.132Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.

Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.

Action not permitted

GHSA-747F-WH5X-MP2P

CVE-2021-47239 (GCVE-0-2021-47239)

Tags

Sightings

Nomenclature

Related by attack behaviour