Vulnerability-Lookup

GHSA-5X4Q-VFJH-6H4J

Vulnerability from github – Published: 2025-06-18 12:30 – Updated: 2025-11-14 18:31

Details

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

ptp: ocp: Limit signal/freq counts in summary output functions

The debugfs summary output could access uninitialized elements in the freq_in[] and signal_out[] arrays, causing NULL pointer dereferences and triggering a kernel Oops (page_fault_oops). This patch adds u8 fields (nr_freq_in, nr_signal_out) to track the number of initialized elements, with a maximum of 4 per array. The summary output functions are updated to respect these limits, preventing out-of-bounds access and ensuring safe array handling.

Widen the label variables because the change confuses GCC about max length of the strings.

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-2025-38054"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-908"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2025-06-18T10:15:38Z",
    "severity": "MODERATE"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nptp: ocp: Limit signal/freq counts in summary output functions\n\nThe debugfs summary output could access uninitialized elements in\nthe freq_in[] and signal_out[] arrays, causing NULL pointer\ndereferences and triggering a kernel Oops (page_fault_oops).\nThis patch adds u8 fields (nr_freq_in, nr_signal_out) to track the\nnumber of initialized elements, with a maximum of 4 per array.\nThe summary output functions are updated to respect these limits,\npreventing out-of-bounds access and ensuring safe array handling.\n\nWiden the label variables because the change confuses GCC about\nmax length of the strings.",
  "id": "GHSA-5x4q-vfjh-6h4j",
  "modified": "2025-11-14T18:31:22Z",
  "published": "2025-06-18T12:30:32Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-38054"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/0b7d3e782027ac3b6fec56159e8e348042000aef"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/c9e455581e2ba87ee38c126e8dc49a424b9df0cf"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/fcad74f894ac89790084cc2e1ec61b08220941d1"
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  "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-2025-38054 (GCVE-0-2025-38054)

Vulnerability from cvelistv5 – Published: 2025-06-18 09:33 – Updated: 2026-05-11 21:20

Title

ptp: ocp: Limit signal/freq counts in summary output functions

Summary

In the Linux kernel, the following vulnerability has been resolved: ptp: ocp: Limit signal/freq counts in summary output functions The debugfs summary output could access uninitialized elements in the freq_in[] and signal_out[] arrays, causing NULL pointer dereferences and triggering a kernel Oops (page_fault_oops). This patch adds u8 fields (nr_freq_in, nr_signal_out) to track the number of initialized elements, with a maximum of 4 per array. The summary output functions are updated to respect these limits, preventing out-of-bounds access and ensuring safe array handling. Widen the label variables because the change confuses GCC about max length of the strings.

Severity

No CVSS data available.

Assigner

Linux mitre root

References

3 references

URL	Tags
https://git.kernel.org/stable/c/0b7d3e782027ac3b6…
https://git.kernel.org/stable/c/fcad74f894ac89790…
https://git.kernel.org/stable/c/c9e455581e2ba87ee…

Impacted products

2 products

Vendor	Product	Version
Linux	Linux	Affected: ef61f5528fca6c3bbb2f8bc002fd1949c9d1f9b9 , < 0b7d3e782027ac3b6fec56159e8e348042000aef (git) Affected: ef61f5528fca6c3bbb2f8bc002fd1949c9d1f9b9 , < fcad74f894ac89790084cc2e1ec61b08220941d1 (git) Affected: ef61f5528fca6c3bbb2f8bc002fd1949c9d1f9b9 , < c9e455581e2ba87ee38c126e8dc49a424b9df0cf (git)
Linux	Linux	Affected: 6.9 Unaffected: 0 , < 6.9 (semver) Unaffected: 6.12.31 , ≤ 6.12.* (semver) Unaffected: 6.14.9 , ≤ 6.14.* (semver) Unaffected: 6.15 , ≤ * (original_commit_for_fix)

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{
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        {
          "defaultStatus": "unaffected",
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          "programFiles": [
            "drivers/ptp/ptp_ocp.c"
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          "versions": [
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              "lessThan": "6.9",
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              "version": "0",
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            },
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              "versionType": "semver"
            },
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              "version": "6.14.9",
              "versionType": "semver"
            },
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              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "6.15",
              "versionType": "original_commit_for_fix"
            }
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      "cpeApplicability": [
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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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