Vulnerability-Lookup

GHSA-FV85-JGQF-P95R

Vulnerability from github – Published: 2026-05-01 15:30 – Updated: 2026-05-07 15:38

Details

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

gpio: Fix resource leaks on errors in gpiochip_add_data_with_key()

Since commit aab5c6f20023 ("gpio: set device type for GPIO chips"), gdev->dev.release is unset. As a result, the reference count to gdev->dev isn't dropped on the error handling paths.

Drop the reference on errors.

Also reorder the instructions to make the error handling simpler. Now gpiochip_add_data_with_key() roughly looks like:

Some memory allocation. Go to ERR ZONE 1 on errors. device_initialize().

gpiodev_release() takes over the responsibility for freeing the resources of gdev->dev. The subsequent error handling paths shouldn't go through ERR ZONE 1 again which leads to double free.

Some initialization mainly on gdev. The rest of initialization. Go to ERR ZONE 2 on errors. Chip registration success and exit.

ERR ZONE 2. gpio_device_put() and exit. ERR ZONE 1.

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-2026-31732"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-401"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-05-01T15:16:35Z",
    "severity": "MODERATE"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\ngpio: Fix resource leaks on errors in gpiochip_add_data_with_key()\n\nSince commit aab5c6f20023 (\"gpio: set device type for GPIO chips\"),\n`gdev-\u003edev.release` is unset.  As a result, the reference count to\n`gdev-\u003edev` isn\u0027t dropped on the error handling paths.\n\nDrop the reference on errors.\n\nAlso reorder the instructions to make the error handling simpler.\nNow gpiochip_add_data_with_key() roughly looks like:\n\n   \u003e\u003e\u003e Some memory allocation.  Go to ERR ZONE 1 on errors.\n   \u003e\u003e\u003e device_initialize().\n\n   gpiodev_release() takes over the responsibility for freeing the\n   resources of `gdev-\u003edev`.  The subsequent error handling paths\n   shouldn\u0027t go through ERR ZONE 1 again which leads to double free.\n\n   \u003e\u003e\u003e Some initialization mainly on `gdev`.\n   \u003e\u003e\u003e The rest of initialization.  Go to ERR ZONE 2 on errors.\n   \u003e\u003e\u003e Chip registration success and exit.\n\n   \u003e\u003e\u003e ERR ZONE 2.  gpio_device_put() and exit.\n   \u003e\u003e\u003e ERR ZONE 1.",
  "id": "GHSA-fv85-jgqf-p95r",
  "modified": "2026-05-07T15:38:30Z",
  "published": "2026-05-01T15:30:34Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-31732"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/16fdabe143fce2cbf89139677728e17e21b46c28"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/f0cf9c7b7c281956cc0dec163132cd96f76e1d60"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/fb4584d2b324c522404c733c65840a1a6519ada8"
    }
  ],
  "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-2026-31732 (GCVE-0-2026-31732)

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

Title

gpio: Fix resource leaks on errors in gpiochip_add_data_with_key()

Summary

In the Linux kernel, the following vulnerability has been resolved: gpio: Fix resource leaks on errors in gpiochip_add_data_with_key() Since commit aab5c6f20023 ("gpio: set device type for GPIO chips"), `gdev->dev.release` is unset. As a result, the reference count to `gdev->dev` isn't dropped on the error handling paths. Drop the reference on errors. Also reorder the instructions to make the error handling simpler. Now gpiochip_add_data_with_key() roughly looks like: >>> Some memory allocation. Go to ERR ZONE 1 on errors. >>> device_initialize(). gpiodev_release() takes over the responsibility for freeing the resources of `gdev->dev`. The subsequent error handling paths shouldn't go through ERR ZONE 1 again which leads to double free. >>> Some initialization mainly on `gdev`. >>> The rest of initialization. Go to ERR ZONE 2 on errors. >>> Chip registration success and exit. >>> ERR ZONE 2. gpio_device_put() and exit. >>> ERR ZONE 1.

Severity ?

No CVSS data available.

Assigner

Linux

References

3 references

URL	Tags
https://git.kernel.org/stable/c/f0cf9c7b7c281956c…
https://git.kernel.org/stable/c/fb4584d2b324c5224…
https://git.kernel.org/stable/c/16fdabe143fce2cbf…

Impacted products

2 products

Vendor	Product	Version
Linux	Linux	Affected: aab5c6f200238ac45001bec3d5494fff8438a8dc , < f0cf9c7b7c281956cc0dec163132cd96f76e1d60 (git) Affected: aab5c6f200238ac45001bec3d5494fff8438a8dc , < fb4584d2b324c522404c733c65840a1a6519ada8 (git) Affected: aab5c6f200238ac45001bec3d5494fff8438a8dc , < 16fdabe143fce2cbf89139677728e17e21b46c28 (git)
Linux	Linux	Affected: 6.9 Unaffected: 0 , < 6.9 (semver) Unaffected: 6.18.22 , ≤ 6.18.* (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/gpio/gpiolib.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "f0cf9c7b7c281956cc0dec163132cd96f76e1d60",
              "status": "affected",
              "version": "aab5c6f200238ac45001bec3d5494fff8438a8dc",
              "versionType": "git"
            },
            {
              "lessThan": "fb4584d2b324c522404c733c65840a1a6519ada8",
              "status": "affected",
              "version": "aab5c6f200238ac45001bec3d5494fff8438a8dc",
              "versionType": "git"
            },
            {
              "lessThan": "16fdabe143fce2cbf89139677728e17e21b46c28",
              "status": "affected",
              "version": "aab5c6f200238ac45001bec3d5494fff8438a8dc",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
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          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "6.9"
            },
            {
              "lessThan": "6.9",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.18.*",
              "status": "unaffected",
              "version": "6.18.22",
              "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": "6.18.22",
                  "versionStartIncluding": "6.9",
                  "vulnerable": true
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                {
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                  "vulnerable": true
                },
                {
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                  "versionStartIncluding": "6.9",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ngpio: Fix resource leaks on errors in gpiochip_add_data_with_key()\n\nSince commit aab5c6f20023 (\"gpio: set device type for GPIO chips\"),\n`gdev-\u003edev.release` is unset.  As a result, the reference count to\n`gdev-\u003edev` isn\u0027t dropped on the error handling paths.\n\nDrop the reference on errors.\n\nAlso reorder the instructions to make the error handling simpler.\nNow gpiochip_add_data_with_key() roughly looks like:\n\n   \u003e\u003e\u003e Some memory allocation.  Go to ERR ZONE 1 on errors.\n   \u003e\u003e\u003e device_initialize().\n\n   gpiodev_release() takes over the responsibility for freeing the\n   resources of `gdev-\u003edev`.  The subsequent error handling paths\n   shouldn\u0027t go through ERR ZONE 1 again which leads to double free.\n\n   \u003e\u003e\u003e Some initialization mainly on `gdev`.\n   \u003e\u003e\u003e The rest of initialization.  Go to ERR ZONE 2 on errors.\n   \u003e\u003e\u003e Chip registration success and exit.\n\n   \u003e\u003e\u003e ERR ZONE 2.  gpio_device_put() and exit.\n   \u003e\u003e\u003e ERR ZONE 1."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-05-11T22:14:41.388Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/f0cf9c7b7c281956cc0dec163132cd96f76e1d60"
        },
        {
          "url": "https://git.kernel.org/stable/c/fb4584d2b324c522404c733c65840a1a6519ada8"
        },
        {
          "url": "https://git.kernel.org/stable/c/16fdabe143fce2cbf89139677728e17e21b46c28"
        }
      ],
      "title": "gpio: Fix resource leaks on errors in gpiochip_add_data_with_key()",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2026-31732",
    "datePublished": "2026-05-01T14:14:30.844Z",
    "dateReserved": "2026-03-09T15:48:24.137Z",
    "dateUpdated": "2026-05-11T22:14:41.388Z",
    "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.

Action not permitted

GHSA-FV85-JGQF-P95R

CVE-2026-31732 (GCVE-0-2026-31732)

Tags

Sightings

Nomenclature