Vulnerability-Lookup

GHSA-8V5W-HX5Q-6WCH

Vulnerability from github – Published: 2025-02-27 03:34 – Updated: 2025-10-01 21:31

Details

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

gpiolib: Fix crash on error in gpiochip_get_ngpios()

The gpiochip_get_ngpios() uses chip_() macros to print messages. However these macros rely on gpiodev to be initialised and set, which is not the case when called via bgpio_init(). In such a case the printing messages will crash on NULL pointer dereference. Replace chip_() macros by the respective dev_*() ones to avoid such crash.

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-2025-21783"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-476"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2025-02-27T03:15:19Z",
    "severity": "MODERATE"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\ngpiolib: Fix crash on error in gpiochip_get_ngpios()\n\nThe gpiochip_get_ngpios() uses chip_*() macros to print messages.\nHowever these macros rely on gpiodev to be initialised and set,\nwhich is not the case when called via bgpio_init(). In such a case\nthe printing messages will crash on NULL pointer dereference.\nReplace chip_*() macros by the respective dev_*() ones to avoid\nsuch crash.",
  "id": "GHSA-8v5w-hx5q-6wch",
  "modified": "2025-10-01T21:31:12Z",
  "published": "2025-02-27T03:34:06Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-21783"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/189fb76215e479c10731baabb50f1a352d2078f5"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/4d9b2b62e1136d10f661ec4c0c268140b6f74f4f"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/7b4aebeecbbd5b5fe73e35fad3f62ed21aa7ef44"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/a7052afa9eae2239e25943baa8817a6a56e8aa68"
    }
  ],
  "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-2025-21783 (GCVE-0-2025-21783)

Vulnerability from cvelistv5 – Published: 2025-02-27 02:18 – Updated: 2026-05-11 21:06

Title

gpiolib: Fix crash on error in gpiochip_get_ngpios()

Summary

In the Linux kernel, the following vulnerability has been resolved: gpiolib: Fix crash on error in gpiochip_get_ngpios() The gpiochip_get_ngpios() uses chip_*() macros to print messages. However these macros rely on gpiodev to be initialised and set, which is not the case when called via bgpio_init(). In such a case the printing messages will crash on NULL pointer dereference. Replace chip_*() macros by the respective dev_*() ones to avoid such crash.

Severity

5.5 (Medium)


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

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2025-10-01 19:30 UTC

CWE

CWE-476 - NULL Pointer Dereference

Assigner

Linux mitre root

References

4 references

URL	Tags
https://git.kernel.org/stable/c/4d9b2b62e1136d10f…
https://git.kernel.org/stable/c/a7052afa9eae2239e…
https://git.kernel.org/stable/c/189fb76215e479c10…
https://git.kernel.org/stable/c/7b4aebeecbbd5b5fe…

Impacted products

2 products

Vendor	Product	Version
Linux	Linux	Affected: 55b2395e4e92adc492c6b30ac109eb78250dcd9d , < 4d9b2b62e1136d10f661ec4c0c268140b6f74f4f (git) Affected: 55b2395e4e92adc492c6b30ac109eb78250dcd9d , < a7052afa9eae2239e25943baa8817a6a56e8aa68 (git) Affected: 55b2395e4e92adc492c6b30ac109eb78250dcd9d , < 189fb76215e479c10731baabb50f1a352d2078f5 (git) Affected: 55b2395e4e92adc492c6b30ac109eb78250dcd9d , < 7b4aebeecbbd5b5fe73e35fad3f62ed21aa7ef44 (git)
Linux	Linux	Affected: 6.6 Unaffected: 0 , < 6.6 (semver) Unaffected: 6.6.79 , ≤ 6.6.* (semver) Unaffected: 6.12.16 , ≤ 6.12.* (semver) Unaffected: 6.13.4 , ≤ 6.13.* (semver) Unaffected: 6.14 , ≤ * (original_commit_for_fix)

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JSON

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              "attackVector": "LOCAL",
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              "confidentialityImpact": "NONE",
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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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