Vulnerability-Lookup

GHSA-PFMC-FX47-CPG8

Vulnerability from github – Published: 2025-05-08 09:30 – Updated: 2025-11-13 00:30

Details

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

usb: typec: class: Fix NULL pointer access

Concurrent calls to typec_partner_unlink_device can lead to a NULL pointer dereference. This patch adds a mutex to protect USB device pointers and prevent this issue. The same mutex protects both the device pointers and the partner device registration.

Severity

5.5 (Medium)


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

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{
  "affected": [],
  "aliases": [
    "CVE-2025-37809"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-476"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2025-05-08T07:15:52Z",
    "severity": "MODERATE"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nusb: typec: class: Fix NULL pointer access\n\nConcurrent calls to typec_partner_unlink_device can lead to a NULL pointer\ndereference. This patch adds a mutex to protect USB device pointers and\nprevent this issue. The same mutex protects both the device pointers and\nthe partner device registration.",
  "id": "GHSA-pfmc-fx47-cpg8",
  "modified": "2025-11-13T00:30:16Z",
  "published": "2025-05-08T09:30:24Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-37809"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/1fdde62411fe65640e69bc55ea027d5b7b2f0093"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/de7c24febd21413ea8f49f61b36338b676c02852"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/ec27386de23a511008c53aa2f3434ad180a3ca9a"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ]
}

CVE-2025-37809 (GCVE-0-2025-37809)

Vulnerability from cvelistv5 – Published: 2025-05-08 06:26 – Updated: 2026-05-11 21:15

Title

usb: typec: class: Fix NULL pointer access

Summary

In the Linux kernel, the following vulnerability has been resolved: usb: typec: class: Fix NULL pointer access Concurrent calls to typec_partner_unlink_device can lead to a NULL pointer dereference. This patch adds a mutex to protect USB device pointers and prevent this issue. The same mutex protects both the device pointers and the partner device registration.

Severity

No CVSS data available.

Assigner

Linux mitre root

References

3 references

URL	Tags
https://git.kernel.org/stable/c/de7c24febd21413ea…
https://git.kernel.org/stable/c/1fdde62411fe65640…
https://git.kernel.org/stable/c/ec27386de23a51100…

Impacted products

2 products

Vendor	Product	Version
Linux	Linux	Affected: 59de2a56d127890cc610f3896d5fc31887c54ac2 , < de7c24febd21413ea8f49f61b36338b676c02852 (git) Affected: 59de2a56d127890cc610f3896d5fc31887c54ac2 , < 1fdde62411fe65640e69bc55ea027d5b7b2f0093 (git) Affected: 59de2a56d127890cc610f3896d5fc31887c54ac2 , < ec27386de23a511008c53aa2f3434ad180a3ca9a (git)
Linux	Linux	Affected: 6.7 Unaffected: 0 , < 6.7 (semver) Unaffected: 6.12.26 , ≤ 6.12.* (semver) Unaffected: 6.14.5 , ≤ 6.14.* (semver) Unaffected: 6.15 , ≤ * (original_commit_for_fix)

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{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/usb/typec/class.c",
            "drivers/usb/typec/class.h"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "de7c24febd21413ea8f49f61b36338b676c02852",
              "status": "affected",
              "version": "59de2a56d127890cc610f3896d5fc31887c54ac2",
              "versionType": "git"
            },
            {
              "lessThan": "1fdde62411fe65640e69bc55ea027d5b7b2f0093",
              "status": "affected",
              "version": "59de2a56d127890cc610f3896d5fc31887c54ac2",
              "versionType": "git"
            },
            {
              "lessThan": "ec27386de23a511008c53aa2f3434ad180a3ca9a",
              "status": "affected",
              "version": "59de2a56d127890cc610f3896d5fc31887c54ac2",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/usb/typec/class.c",
            "drivers/usb/typec/class.h"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "6.7"
            },
            {
              "lessThan": "6.7",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.12.*",
              "status": "unaffected",
              "version": "6.12.26",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.14.*",
              "status": "unaffected",
              "version": "6.14.5",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "6.15",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.12.26",
                  "versionStartIncluding": "6.7",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.14.5",
                  "versionStartIncluding": "6.7",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.15",
                  "versionStartIncluding": "6.7",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nusb: typec: class: Fix NULL pointer access\n\nConcurrent calls to typec_partner_unlink_device can lead to a NULL pointer\ndereference. This patch adds a mutex to protect USB device pointers and\nprevent this issue. The same mutex protects both the device pointers and\nthe partner device registration."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-05-11T21:15:33.833Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/de7c24febd21413ea8f49f61b36338b676c02852"
        },
        {
          "url": "https://git.kernel.org/stable/c/1fdde62411fe65640e69bc55ea027d5b7b2f0093"
        },
        {
          "url": "https://git.kernel.org/stable/c/ec27386de23a511008c53aa2f3434ad180a3ca9a"
        }
      ],
      "title": "usb: typec: class: Fix NULL pointer access",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2025-37809",
    "datePublished": "2025-05-08T06:26:07.510Z",
    "dateReserved": "2025-04-16T04:51:23.942Z",
    "dateUpdated": "2026-05-11T21:15:33.833Z",
    "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.