Vulnerability-Lookup

GHSA-RWC9-H9MH-XFWQ

Vulnerability from github – Published: 2026-02-14 18:30 – Updated: 2026-09-14 12:31

Details

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

of: unittest: Fix memory leak in unittest_data_add()

In unittest_data_add(), if of_resolve_phandles() fails, the allocated unittest_data is not freed, leading to a memory leak.

Fix this by using scope-based cleanup helper __free(kfree) for automatic resource cleanup. This ensures unittest_data is automatically freed when it goes out of scope in error paths.

For the success path, use retain_and_null_ptr() to transfer ownership of the memory to the device tree and prevent double freeing.

Severity

5.5 (Medium)


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

Show details on source website

JSON

To clipboard

{
  "affected": [],
  "aliases": [
    "CVE-2026-23137"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-401"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-02-14T16:15:53Z",
    "severity": "MODERATE"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nof: unittest: Fix memory leak in unittest_data_add()\n\nIn unittest_data_add(), if of_resolve_phandles() fails, the allocated\nunittest_data is not freed, leading to a memory leak.\n\nFix this by using scope-based cleanup helper __free(kfree) for automatic\nresource cleanup. This ensures unittest_data is automatically freed when\nit goes out of scope in error paths.\n\nFor the success path, use retain_and_null_ptr() to transfer ownership\nof the memory to the device tree and prevent double freeing.",
  "id": "GHSA-rwc9-h9mh-xfwq",
  "modified": "2026-09-14T12:31:28Z",
  "published": "2026-02-14T18:30:14Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-23137"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/235a1eb8d2dcc49a6cf0a5ee1aa85544a5d0054b"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/58baf98d1bdab897fd796f39a16061bade229d71"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/f09b0f705bd7197863b90256ef533a6414d1db2c"
    }
  ],
  "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-2026-23137 (GCVE-0-2026-23137)

Vulnerability from cvelistv5 – Published: 2026-02-14 15:22 – Updated: 2026-09-14 11:58

Title

of: unittest: Fix memory leak in unittest_data_add()

Summary

In the Linux kernel, the following vulnerability has been resolved: of: unittest: Fix memory leak in unittest_data_add() In unittest_data_add(), if of_resolve_phandles() fails, the allocated unittest_data is not freed, leading to a memory leak. Fix this by using scope-based cleanup helper __free(kfree) for automatic resource cleanup. This ensures unittest_data is automatically freed when it goes out of scope in error paths. For the success path, use retain_and_null_ptr() to transfer ownership of the memory to the device tree and prevent double freeing.

Severity

No CVSS data available.

Assigner

Linux mitre root

References

3 references

URL	Tags
https://git.kernel.org/stable/c/58baf98d1bdab897f…
https://git.kernel.org/stable/c/f09b0f705bd719786…
https://git.kernel.org/stable/c/235a1eb8d2dcc49a6…

Impacted products

2 products

Vendor	Product	Version
Linux	Linux	Affected: 2eb46da2a760e5764c48b752a5ef320e02b96b21 , < 58baf98d1bdab897fd796f39a16061bade229d71 (git) Affected: 2eb46da2a760e5764c48b752a5ef320e02b96b21 , < f09b0f705bd7197863b90256ef533a6414d1db2c (git) Affected: 2eb46da2a760e5764c48b752a5ef320e02b96b21 , < 235a1eb8d2dcc49a6cf0a5ee1aa85544a5d0054b (git)
Linux	Linux	Affected: 3.18 Unaffected: 0 , < 3.18 (semver) Unaffected: 6.12.110 , ≤ 6.12.* (semver) Unaffected: 6.18.6 , ≤ 6.18.* (semver) Unaffected: 6.19 , ≤ * (original_commit_for_fix)

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/of/unittest.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "58baf98d1bdab897fd796f39a16061bade229d71",
              "status": "affected",
              "version": "2eb46da2a760e5764c48b752a5ef320e02b96b21",
              "versionType": "git"
            },
            {
              "lessThan": "f09b0f705bd7197863b90256ef533a6414d1db2c",
              "status": "affected",
              "version": "2eb46da2a760e5764c48b752a5ef320e02b96b21",
              "versionType": "git"
            },
            {
              "lessThan": "235a1eb8d2dcc49a6cf0a5ee1aa85544a5d0054b",
              "status": "affected",
              "version": "2eb46da2a760e5764c48b752a5ef320e02b96b21",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/of/unittest.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "3.18"
            },
            {
              "lessThan": "3.18",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.12.*",
              "status": "unaffected",
              "version": "6.12.110",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.18.*",
              "status": "unaffected",
              "version": "6.18.6",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "6.19",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.12.110",
                  "versionStartIncluding": "3.18",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.18.6",
                  "versionStartIncluding": "3.18",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.19",
                  "versionStartIncluding": "3.18",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nof: unittest: Fix memory leak in unittest_data_add()\n\nIn unittest_data_add(), if of_resolve_phandles() fails, the allocated\nunittest_data is not freed, leading to a memory leak.\n\nFix this by using scope-based cleanup helper __free(kfree) for automatic\nresource cleanup. This ensures unittest_data is automatically freed when\nit goes out of scope in error paths.\n\nFor the success path, use retain_and_null_ptr() to transfer ownership\nof the memory to the device tree and prevent double freeing."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-09-14T11:58:10.749Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/58baf98d1bdab897fd796f39a16061bade229d71"
        },
        {
          "url": "https://git.kernel.org/stable/c/f09b0f705bd7197863b90256ef533a6414d1db2c"
        },
        {
          "url": "https://git.kernel.org/stable/c/235a1eb8d2dcc49a6cf0a5ee1aa85544a5d0054b"
        }
      ],
      "title": "of: unittest: Fix memory leak in unittest_data_add()",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2026-23137",
    "datePublished": "2026-02-14T15:22:22.690Z",
    "dateReserved": "2026-01-13T15:37:45.971Z",
    "dateUpdated": "2026-09-14T11:58:10.749Z",
    "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.