github - ghsa-4rpm-cvm4-wfmq

ghsa-4rpm-cvm4-wfmq

Vulnerability from github

Published

2025-08-19 18:31

Modified

2025-08-19 18:31

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.

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{
  "affected": [],
  "aliases": [
    "CVE-2025-38568"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2025-08-19T17:15:33Z",
    "severity": null
  },
  "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": "2025-08-19T18:31:33Z",
  "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": []
}

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

Vulnerability from cvelistv5

Published

2025-08-19 17:02

Modified

2025-08-19 17:02

Severity ?

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.

References

▼	URL	Tags
	https://git.kernel.org/stable/c/39491e859fd494d0b51adc5c7d54c8a7dcf1d198
	https://git.kernel.org/stable/c/d00e4125680f7074c4f42ce3c297336f23128e70
	https://git.kernel.org/stable/c/66fc2ebdd9d5dd6e5a9c7edeace5a61a0ab2cd86
	https://git.kernel.org/stable/c/f1a9dbcb7d17bf0abb325cdc984957cfabc59693
	https://git.kernel.org/stable/c/ffd2dc4c6c49ff4f1e5d34e454a6a55608104c17

Impacted products

Vendor

Product

Version

▼

Linux

Version: f62af20bed2d9e824f51cfc97ff01bc261f40e58
Version: f62af20bed2d9e824f51cfc97ff01bc261f40e58
Version: f62af20bed2d9e824f51cfc97ff01bc261f40e58
Version: f62af20bed2d9e824f51cfc97ff01bc261f40e58
Version: f62af20bed2d9e824f51cfc97ff01bc261f40e58

Linux

Version: 6.4

Show details on NVD website

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{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "net/sched/sch_mqprio.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "39491e859fd494d0b51adc5c7d54c8a7dcf1d198",
              "status": "affected",
              "version": "f62af20bed2d9e824f51cfc97ff01bc261f40e58",
              "versionType": "git"
            },
            {
              "lessThan": "d00e4125680f7074c4f42ce3c297336f23128e70",
              "status": "affected",
              "version": "f62af20bed2d9e824f51cfc97ff01bc261f40e58",
              "versionType": "git"
            },
            {
              "lessThan": "66fc2ebdd9d5dd6e5a9c7edeace5a61a0ab2cd86",
              "status": "affected",
              "version": "f62af20bed2d9e824f51cfc97ff01bc261f40e58",
              "versionType": "git"
            },
            {
              "lessThan": "f1a9dbcb7d17bf0abb325cdc984957cfabc59693",
              "status": "affected",
              "version": "f62af20bed2d9e824f51cfc97ff01bc261f40e58",
              "versionType": "git"
            },
            {
              "lessThan": "ffd2dc4c6c49ff4f1e5d34e454a6a55608104c17",
              "status": "affected",
              "version": "f62af20bed2d9e824f51cfc97ff01bc261f40e58",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "net/sched/sch_mqprio.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "6.4"
            },
            {
              "lessThan": "6.4",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.6.*",
              "status": "unaffected",
              "version": "6.6.102",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.12.*",
              "status": "unaffected",
              "version": "6.12.42",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.15.*",
              "status": "unaffected",
              "version": "6.15.10",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.16.*",
              "status": "unaffected",
              "version": "6.16.1",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "6.17-rc1",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.6.102",
                  "versionStartIncluding": "6.4",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.12.42",
                  "versionStartIncluding": "6.4",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.15.10",
                  "versionStartIncluding": "6.4",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.16.1",
                  "versionStartIncluding": "6.4",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.17-rc1",
                  "versionStartIncluding": "6.4",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "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."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2025-08-19T17:02:49.278Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/39491e859fd494d0b51adc5c7d54c8a7dcf1d198"
        },
        {
          "url": "https://git.kernel.org/stable/c/d00e4125680f7074c4f42ce3c297336f23128e70"
        },
        {
          "url": "https://git.kernel.org/stable/c/66fc2ebdd9d5dd6e5a9c7edeace5a61a0ab2cd86"
        },
        {
          "url": "https://git.kernel.org/stable/c/f1a9dbcb7d17bf0abb325cdc984957cfabc59693"
        },
        {
          "url": "https://git.kernel.org/stable/c/ffd2dc4c6c49ff4f1e5d34e454a6a55608104c17"
        }
      ],
      "title": "net/sched: mqprio: fix stack out-of-bounds write in tc entry parsing",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2025-38568",
    "datePublished": "2025-08-19T17:02:49.278Z",
    "dateReserved": "2025-04-16T04:51:24.025Z",
    "dateUpdated": "2025-08-19T17:02:49.278Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1"
}

Sightings

Author	Source	Type	Date

Nomenclature

Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
Confirmed: The vulnerability is confirmed from an analyst perspective.
Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
Patched: This vulnerability was successfully patched by the user reporting the sighting.
Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
Not confirmed: The user expresses doubt about the veracity of the vulnerability.
Not patched: This vulnerability was not successfully patched by the user reporting the sighting.

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