Vulnerability-Lookup

GHSA-4RPM-CVM4-WFMQ

Vulnerability from github – Published: 2025-08-19 18:31 – Updated: 2025-11-26 21:31

Details

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

net/sched: mqprio: fix stack out-of-bounds write in tc entry parsing

TCA_MQPRIO_TC_ENTRY_INDEX is validated using NLA_POLICY_MAX(NLA_U32, TC_QOPT_MAX_QUEUE), which allows the value TC_QOPT_MAX_QUEUE (16). This leads to a 4-byte out-of-bounds stack write in the fp[] array, which only has room for 16 elements (0–15).

Fix this by changing the policy to allow only up to TC_QOPT_MAX_QUEUE - 1.

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-2025-38568"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-787"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2025-08-19T17:15:33Z",
    "severity": "HIGH"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet/sched: mqprio: fix stack out-of-bounds write in tc entry parsing\n\nTCA_MQPRIO_TC_ENTRY_INDEX is validated using\nNLA_POLICY_MAX(NLA_U32, TC_QOPT_MAX_QUEUE), which allows the value\nTC_QOPT_MAX_QUEUE (16). This leads to a 4-byte out-of-bounds stack\nwrite in the fp[] array, which only has room for 16 elements (0\u201315).\n\nFix this by changing the policy to allow only up to TC_QOPT_MAX_QUEUE - 1.",
  "id": "GHSA-4rpm-cvm4-wfmq",
  "modified": "2025-11-26T21:31:25Z",
  "published": "2025-08-19T18:31:32Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-38568"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/39491e859fd494d0b51adc5c7d54c8a7dcf1d198"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/66fc2ebdd9d5dd6e5a9c7edeace5a61a0ab2cd86"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/d00e4125680f7074c4f42ce3c297336f23128e70"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/f1a9dbcb7d17bf0abb325cdc984957cfabc59693"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/ffd2dc4c6c49ff4f1e5d34e454a6a55608104c17"
    }
  ],
  "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-2025-38568 (GCVE-0-2025-38568)

Vulnerability from cvelistv5 – Published: 2025-08-19 17:02 – Updated: 2026-08-05 12:02

Title

net/sched: mqprio: fix stack out-of-bounds write in tc entry parsing

Summary

In the Linux kernel, the following vulnerability has been resolved: net/sched: mqprio: fix stack out-of-bounds write in tc entry parsing TCA_MQPRIO_TC_ENTRY_INDEX is validated using NLA_POLICY_MAX(NLA_U32, TC_QOPT_MAX_QUEUE), which allows the value TC_QOPT_MAX_QUEUE (16). This leads to a 4-byte out-of-bounds stack write in the fp[] array, which only has room for 16 elements (0–15). Fix this by changing the policy to allow only up to TC_QOPT_MAX_QUEUE - 1.

Severity

7.8 (High)


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

SSVC

Exploitation: none Automatable: no Technical Impact: total

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-06-10 20:41 UTC

Assigner

Linux mitre root Scorecard

References

5 references

URL	Tags
https://git.kernel.org/stable/c/39491e859fd494d0b…
https://git.kernel.org/stable/c/d00e4125680f7074c…
https://git.kernel.org/stable/c/66fc2ebdd9d5dd6e5…
https://git.kernel.org/stable/c/f1a9dbcb7d17bf0ab…
https://git.kernel.org/stable/c/ffd2dc4c6c49ff4f1…

Impacted products

2 products

Vendor	Product	Version
Linux	Linux	Affected: f62af20bed2d9e824f51cfc97ff01bc261f40e58 , < 39491e859fd494d0b51adc5c7d54c8a7dcf1d198 (git) Affected: f62af20bed2d9e824f51cfc97ff01bc261f40e58 , < d00e4125680f7074c4f42ce3c297336f23128e70 (git) Affected: f62af20bed2d9e824f51cfc97ff01bc261f40e58 , < 66fc2ebdd9d5dd6e5a9c7edeace5a61a0ab2cd86 (git) Affected: f62af20bed2d9e824f51cfc97ff01bc261f40e58 , < f1a9dbcb7d17bf0abb325cdc984957cfabc59693 (git) Affected: f62af20bed2d9e824f51cfc97ff01bc261f40e58 , < ffd2dc4c6c49ff4f1e5d34e454a6a55608104c17 (git)
Linux	Linux	Affected: 6.4 Unaffected: 0 , < 6.4 (semver) Unaffected: 6.6.102 , ≤ 6.6.* (semver) Unaffected: 6.12.42 , ≤ 6.12.* (semver) Unaffected: 6.15.10 , ≤ 6.15.* (semver) Unaffected: 6.16.1 , ≤ 6.16.* (semver) Unaffected: 6.17 , ≤ * (original_commit_for_fix)

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{
  "containers": {
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      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2025-38568",
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                "role": "CISA Coordinator",
                "timestamp": "2026-06-10T20:41:51.423653Z",
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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.

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.
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GHSA-4RPM-CVM4-WFMQ

CVE-2025-38568 (GCVE-0-2025-38568)

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