Vulnerability-Lookup

GHSA-M84J-W2C4-3379

Vulnerability from github – Published: 2026-05-01 15:30 – Updated: 2026-05-07 21:30

Details

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

reset: gpio: fix double free in reset_add_gpio_aux_device() error path

When __auxiliary_device_add() fails, reset_add_gpio_aux_device() calls auxiliary_device_uninit(adev).

The device release callback reset_gpio_aux_device_release() frees adev, but the current error path then calls kfree(adev) again, causing a double free.

Keep kfree(adev) for the auxiliary_device_init() failure path, but avoid freeing adev after auxiliary_device_uninit().

Severity

7.8 (High)


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

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{
  "affected": [],
  "aliases": [
    "CVE-2026-31745"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-415"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-05-01T15:16:37Z",
    "severity": "HIGH"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nreset: gpio: fix double free in reset_add_gpio_aux_device() error path\n\nWhen __auxiliary_device_add() fails, reset_add_gpio_aux_device()\ncalls auxiliary_device_uninit(adev).\n\nThe device release callback reset_gpio_aux_device_release() frees\nadev, but the current error path then calls kfree(adev) again,\ncausing a double free.\n\nKeep kfree(adev) for the auxiliary_device_init() failure path, but\navoid freeing adev after auxiliary_device_uninit().",
  "id": "GHSA-m84j-w2c4-3379",
  "modified": "2026-05-07T21:30:24Z",
  "published": "2026-05-01T15:30:34Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-31745"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/1de465753220deb41569cf2add87bbb0673731db"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/fbffb8c7c7bb4d38e9f65e0bee446685011de5d8"
    }
  ],
  "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-2026-31745 (GCVE-0-2026-31745)

Vulnerability from cvelistv5 – Published: 2026-05-01 14:14 – Updated: 2026-05-11 22:14

Title

reset: gpio: fix double free in reset_add_gpio_aux_device() error path

Summary

In the Linux kernel, the following vulnerability has been resolved: reset: gpio: fix double free in reset_add_gpio_aux_device() error path When __auxiliary_device_add() fails, reset_add_gpio_aux_device() calls auxiliary_device_uninit(adev). The device release callback reset_gpio_aux_device_release() frees adev, but the current error path then calls kfree(adev) again, causing a double free. Keep kfree(adev) for the auxiliary_device_init() failure path, but avoid freeing adev after auxiliary_device_uninit().

Severity

No CVSS data available.

Assigner

Linux mitre root

References

2 references

URL	Tags
https://git.kernel.org/stable/c/1de465753220deb41…
https://git.kernel.org/stable/c/fbffb8c7c7bb4d38e…

Impacted products

2 products

Vendor	Product	Version
Linux	Linux	Affected: 5fc4e4cf7a2268b5f73700fd1e8d02159f2417d8 , < 1de465753220deb41569cf2add87bbb0673731db (git) Affected: 5fc4e4cf7a2268b5f73700fd1e8d02159f2417d8 , < fbffb8c7c7bb4d38e9f65e0bee446685011de5d8 (git)
Linux	Linux	Affected: 6.19 Unaffected: 0 , < 6.19 (semver) Unaffected: 6.19.12 , ≤ 6.19.* (semver) Unaffected: 7.0 , ≤ * (original_commit_for_fix)

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{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/reset/core.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "1de465753220deb41569cf2add87bbb0673731db",
              "status": "affected",
              "version": "5fc4e4cf7a2268b5f73700fd1e8d02159f2417d8",
              "versionType": "git"
            },
            {
              "lessThan": "fbffb8c7c7bb4d38e9f65e0bee446685011de5d8",
              "status": "affected",
              "version": "5fc4e4cf7a2268b5f73700fd1e8d02159f2417d8",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/reset/core.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "6.19"
            },
            {
              "lessThan": "6.19",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.19.*",
              "status": "unaffected",
              "version": "6.19.12",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "7.0",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.19.12",
                  "versionStartIncluding": "6.19",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "7.0",
                  "versionStartIncluding": "6.19",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nreset: gpio: fix double free in reset_add_gpio_aux_device() error path\n\nWhen __auxiliary_device_add() fails, reset_add_gpio_aux_device()\ncalls auxiliary_device_uninit(adev).\n\nThe device release callback reset_gpio_aux_device_release() frees\nadev, but the current error path then calls kfree(adev) again,\ncausing a double free.\n\nKeep kfree(adev) for the auxiliary_device_init() failure path, but\navoid freeing adev after auxiliary_device_uninit()."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-05-11T22:14:56.434Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/1de465753220deb41569cf2add87bbb0673731db"
        },
        {
          "url": "https://git.kernel.org/stable/c/fbffb8c7c7bb4d38e9f65e0bee446685011de5d8"
        }
      ],
      "title": "reset: gpio: fix double free in reset_add_gpio_aux_device() error path",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2026-31745",
    "datePublished": "2026-05-01T14:14:39.529Z",
    "dateReserved": "2026-03-09T15:48:24.138Z",
    "dateUpdated": "2026-05-11T22:14:56.434Z",
    "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.

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