github - ghsa-29fx-85hc-pfpw

GHSA-29FX-85HC-PFPW

Vulnerability from github – Published: 2025-10-28 12:30 – Updated: 2025-10-28 12:30

Details

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

ptp: Add a upper bound on max_vclocks

syzbot reported WARNING in max_vclocks_store.

This occurs when the argument max is too large for kcalloc to handle.

Extend the guard to guard against values that are too large for kcalloc

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{
  "affected": [],
  "aliases": [
    "CVE-2025-40057"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2025-10-28T12:15:40Z",
    "severity": null
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nptp: Add a upper bound on max_vclocks\n\nsyzbot reported WARNING in max_vclocks_store.\n\nThis occurs when the argument max is too large for kcalloc to handle.\n\nExtend the guard to guard against values that are too large for\nkcalloc",
  "id": "GHSA-29fx-85hc-pfpw",
  "modified": "2025-10-28T12:30:17Z",
  "published": "2025-10-28T12:30:17Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-40057"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/35ce5f163889dbce88eda1df661b357a09bbed87"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/8dd446056336faa2283d62cefc2f576536845edc"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/e9f35294e18da82162004a2f35976e7031aaf7f9"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}

CVE-2025-40057 (GCVE-0-2025-40057)

Vulnerability from cvelistv5 – Published: 2025-10-28 11:48 – Updated: 2025-12-01 06:17

Summary

In the Linux kernel, the following vulnerability has been resolved: ptp: Add a upper bound on max_vclocks syzbot reported WARNING in max_vclocks_store. This occurs when the argument max is too large for kcalloc to handle. Extend the guard to guard against values that are too large for kcalloc

Severity ?

No CVSS data available.

Assigner

Linux

References

URL

Tags

	https://git.kernel.org/stable/c/8dd446056336faa22…
	https://git.kernel.org/stable/c/35ce5f163889dbce8…
	https://git.kernel.org/stable/c/e9f35294e18da8216…

Impacted products

Vendor

Product

Version

Linux

Affected: 73f37068d540eba5f93ba3a0019bf479d35ebd76 , < 8dd446056336faa2283d62cefc2f576536845edc (git)
Affected: 73f37068d540eba5f93ba3a0019bf479d35ebd76 , < 35ce5f163889dbce88eda1df661b357a09bbed87 (git)
Affected: 73f37068d540eba5f93ba3a0019bf479d35ebd76 , < e9f35294e18da82162004a2f35976e7031aaf7f9 (git)

Linux

Affected: 5.14
Unaffected: 0 , < 5.14 (semver)
Unaffected: 6.12.53 , ≤ 6.12.* (semver)
Unaffected: 6.17.3 , ≤ 6.17.* (semver)
Unaffected: 6.18 , ≤ * (original_commit_for_fix)

Show details on NVD website

JSON

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{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/ptp/ptp_private.h",
            "drivers/ptp/ptp_sysfs.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "8dd446056336faa2283d62cefc2f576536845edc",
              "status": "affected",
              "version": "73f37068d540eba5f93ba3a0019bf479d35ebd76",
              "versionType": "git"
            },
            {
              "lessThan": "35ce5f163889dbce88eda1df661b357a09bbed87",
              "status": "affected",
              "version": "73f37068d540eba5f93ba3a0019bf479d35ebd76",
              "versionType": "git"
            },
            {
              "lessThan": "e9f35294e18da82162004a2f35976e7031aaf7f9",
              "status": "affected",
              "version": "73f37068d540eba5f93ba3a0019bf479d35ebd76",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/ptp/ptp_private.h",
            "drivers/ptp/ptp_sysfs.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "5.14"
            },
            {
              "lessThan": "5.14",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.12.*",
              "status": "unaffected",
              "version": "6.12.53",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.17.*",
              "status": "unaffected",
              "version": "6.17.3",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "6.18",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
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          "nodes": [
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                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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                  "versionStartIncluding": "5.14",
                  "vulnerable": true
                },
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                  "versionStartIncluding": "5.14",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.18",
                  "versionStartIncluding": "5.14",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nptp: Add a upper bound on max_vclocks\n\nsyzbot reported WARNING in max_vclocks_store.\n\nThis occurs when the argument max is too large for kcalloc to handle.\n\nExtend the guard to guard against values that are too large for\nkcalloc"
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2025-12-01T06:17:05.742Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
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        },
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        },
        {
          "url": "https://git.kernel.org/stable/c/e9f35294e18da82162004a2f35976e7031aaf7f9"
        }
      ],
      "title": "ptp: Add a upper bound on max_vclocks",
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  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2025-40057",
    "datePublished": "2025-10-28T11:48:30.947Z",
    "dateReserved": "2025-04-16T07:20:57.158Z",
    "dateUpdated": "2025-12-01T06:17:05.742Z",
    "state": "PUBLISHED"
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  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

Sightings

Author	Source	Type	Date

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-29FX-85HC-PFPW

CVE-2025-40057 (GCVE-0-2025-40057)

Tags

Sightings

Nomenclature