Vulnerability-Lookup

FKIE_CVE-2026-64242

Vulnerability from fkie_nvd - Published: 2026-07-24 16:16 - Updated: 2026-08-13 17:22

Severity

7.8 (High) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Summary

In the Linux kernel, the following vulnerability has been resolved: usb: gadget: net2280: Fix double free in probe error path usb_initialize_gadget() installs gadget_release() as the release callback for the embedded gadget device. The struct net2280 instance is therefore released through gadget_release() when the gadget device's last reference is dropped. The probe error path calls net2280_remove(), which tears down the partially initialized device and drops the gadget reference with usb_put_gadget(). Calling kfree(dev) afterwards can free the same object again. Drop the explicit kfree() and let the gadget device release callback handle the final free. This issue was found by a static analysis tool I am developing.

References

URL	Tags
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/085652fda7f38040d1a2c42d72614f418feb843f	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/48f89ead20e48d447ad29fa937b43b9fa981cf28	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/550fa4d071a8c8e53072900869d37ae6abf4999d	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/71b3391dc81655ff058492f8e9d013b2c6e5747b	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/c5b9fdb1e8ddf50bc6272927edb118679f170350	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/c8547c74988e0b5f4cbb1b895e2a57aae084f070	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/db2b72e83a0208ae2b3b270bf91662b1c6849a9b	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/e6f8be12f0307145b9a6010f044925952b37de8b	Patch

Impacted products

Vendor	Product	Version
linux	linux_kernel	*
linux	linux_kernel	*
linux	linux_kernel	*
linux	linux_kernel	*
linux	linux_kernel	*
linux	linux_kernel	*
linux	linux_kernel	*
linux	linux_kernel	7.1
linux	linux_kernel	7.1
linux	linux_kernel	7.1
linux	linux_kernel	7.1
linux	linux_kernel	7.1

JSON

To clipboard

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      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nusb: gadget: net2280: Fix double free in probe error path\n\nusb_initialize_gadget() installs gadget_release() as the release\ncallback for the embedded gadget device.  The struct net2280 instance is\ntherefore released through gadget_release() when the gadget device\u0027s last\nreference is dropped.\n\nThe probe error path calls net2280_remove(), which tears down the\npartially initialized device and drops the gadget reference with\nusb_put_gadget().  Calling kfree(dev) afterwards can free the same object\nagain.\n\nDrop the explicit kfree() and let the gadget device release callback\nhandle the final free.  This issue was found by a static analysis tool\nI am developing."
    }
  ],
  "id": "CVE-2026-64242",
  "lastModified": "2026-08-13T17:22:29.770",
  "metrics": {
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      {
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          "attackComplexity": "LOW",
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          "baseScore": 7.8,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "privilegesRequired": "LOW",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
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}

CVE-2026-64242 (GCVE-0-2026-64242)

Vulnerability from cvelistv5 – Published: 2026-07-24 15:27 – Updated: 2026-07-24 15:27

Title

usb: gadget: net2280: Fix double free in probe error path

Summary

Severity

No CVSS data available.

Assigner

Linux mitre root

References

8 references

URL	Tags
https://git.kernel.org/stable/c/71b3391dc81655ff0…
https://git.kernel.org/stable/c/550fa4d071a8c8e53…
https://git.kernel.org/stable/c/c5b9fdb1e8ddf50bc…
https://git.kernel.org/stable/c/085652fda7f38040d…
https://git.kernel.org/stable/c/48f89ead20e48d447…
https://git.kernel.org/stable/c/e6f8be12f0307145b…
https://git.kernel.org/stable/c/db2b72e83a0208ae2…
https://git.kernel.org/stable/c/c8547c74988e0b5f4…

Impacted products

2 products

Vendor	Product	Version
Linux	Linux	Affected: f770fbec4165b1acfabdeadb01ad6008d2c537b5 , < 71b3391dc81655ff058492f8e9d013b2c6e5747b (git) Affected: f770fbec4165b1acfabdeadb01ad6008d2c537b5 , < 550fa4d071a8c8e53072900869d37ae6abf4999d (git) Affected: f770fbec4165b1acfabdeadb01ad6008d2c537b5 , < c5b9fdb1e8ddf50bc6272927edb118679f170350 (git) Affected: f770fbec4165b1acfabdeadb01ad6008d2c537b5 , < 085652fda7f38040d1a2c42d72614f418feb843f (git) Affected: f770fbec4165b1acfabdeadb01ad6008d2c537b5 , < 48f89ead20e48d447ad29fa937b43b9fa981cf28 (git) Affected: f770fbec4165b1acfabdeadb01ad6008d2c537b5 , < e6f8be12f0307145b9a6010f044925952b37de8b (git) Affected: f770fbec4165b1acfabdeadb01ad6008d2c537b5 , < db2b72e83a0208ae2b3b270bf91662b1c6849a9b (git) Affected: f770fbec4165b1acfabdeadb01ad6008d2c537b5 , < c8547c74988e0b5f4cbb1b895e2a57aae084f070 (git)
Linux	Linux	Affected: 5.10 Unaffected: 0 , < 5.10 (semver) Unaffected: 5.10.259 , ≤ 5.10.* (semver) Unaffected: 5.15.210 , ≤ 5.15.* (semver) Unaffected: 6.1.176 , ≤ 6.1.* (semver) Unaffected: 6.6.143 , ≤ 6.6.* (semver) Unaffected: 6.12.93 , ≤ 6.12.* (semver) Unaffected: 6.18.35 , ≤ 6.18.* (semver) Unaffected: 7.0.12 , ≤ 7.0.* (semver) Unaffected: 7.1 , ≤ * (original_commit_for_fix)

Show details on NVD website

JSON

To clipboard

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        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/usb/gadget/udc/net2280.c"
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                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.12.93",
                  "versionStartIncluding": "5.10",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.18.35",
                  "versionStartIncluding": "5.10",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "7.0.12",
                  "versionStartIncluding": "5.10",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "7.1",
                  "versionStartIncluding": "5.10",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nusb: gadget: net2280: Fix double free in probe error path\n\nusb_initialize_gadget() installs gadget_release() as the release\ncallback for the embedded gadget device.  The struct net2280 instance is\ntherefore released through gadget_release() when the gadget device\u0027s last\nreference is dropped.\n\nThe probe error path calls net2280_remove(), which tears down the\npartially initialized device and drops the gadget reference with\nusb_put_gadget().  Calling kfree(dev) afterwards can free the same object\nagain.\n\nDrop the explicit kfree() and let the gadget device release callback\nhandle the final free.  This issue was found by a static analysis tool\nI am developing."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-07-24T15:27:44.730Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/71b3391dc81655ff058492f8e9d013b2c6e5747b"
        },
        {
          "url": "https://git.kernel.org/stable/c/550fa4d071a8c8e53072900869d37ae6abf4999d"
        },
        {
          "url": "https://git.kernel.org/stable/c/c5b9fdb1e8ddf50bc6272927edb118679f170350"
        },
        {
          "url": "https://git.kernel.org/stable/c/085652fda7f38040d1a2c42d72614f418feb843f"
        },
        {
          "url": "https://git.kernel.org/stable/c/48f89ead20e48d447ad29fa937b43b9fa981cf28"
        },
        {
          "url": "https://git.kernel.org/stable/c/e6f8be12f0307145b9a6010f044925952b37de8b"
        },
        {
          "url": "https://git.kernel.org/stable/c/db2b72e83a0208ae2b3b270bf91662b1c6849a9b"
        },
        {
          "url": "https://git.kernel.org/stable/c/c8547c74988e0b5f4cbb1b895e2a57aae084f070"
        }
      ],
      "title": "usb: gadget: net2280: Fix double free in probe error path",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2026-64242",
    "datePublished": "2026-07-24T15:27:44.730Z",
    "dateReserved": "2026-07-19T15:36:31.772Z",
    "dateUpdated": "2026-07-24T15:27:44.730Z",
    "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.

Detection rules are retrieved from Rulezet.

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.