CVE-2025-40331 (GCVE-0-2025-40331)
Vulnerability from cvelistv5
Published
2025-12-09 04:09
Modified
2025-12-09 04:09
Severity ?
Summary
In the Linux kernel, the following vulnerability has been resolved: sctp: Prevent TOCTOU out-of-bounds write For the following path not holding the sock lock, sctp_diag_dump() -> sctp_for_each_endpoint() -> sctp_ep_dump() make sure not to exceed bounds in case the address list has grown between buffer allocation (time-of-check) and write (time-of-use).
References
Impacted products
Vendor Product Version
Linux Linux Version: 8f840e47f190cbe61a96945c13e9551048d42cef
Version: 8f840e47f190cbe61a96945c13e9551048d42cef
Version: 8f840e47f190cbe61a96945c13e9551048d42cef
Version: 8f840e47f190cbe61a96945c13e9551048d42cef
Version: 8f840e47f190cbe61a96945c13e9551048d42cef
Version: 8f840e47f190cbe61a96945c13e9551048d42cef
Version: 8f840e47f190cbe61a96945c13e9551048d42cef
Version: 8f840e47f190cbe61a96945c13e9551048d42cef
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{
  "containers": {
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          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "net/sctp/diag.c"
          ],
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          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
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              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.4.*",
              "status": "unaffected",
              "version": "5.4.302",
              "versionType": "semver"
            },
            {
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              "version": "5.10.247",
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            {
              "lessThanOrEqual": "5.15.*",
              "status": "unaffected",
              "version": "5.15.197",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.1.*",
              "status": "unaffected",
              "version": "6.1.159",
              "versionType": "semver"
            },
            {
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              "status": "unaffected",
              "version": "6.6.117",
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            },
            {
              "lessThanOrEqual": "6.12.*",
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              "version": "6.12.58",
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            },
            {
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              "version": "6.17.8",
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            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "6.18",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
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              "cpeMatch": [
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                  "vulnerable": true
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              "operator": "OR"
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      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nsctp: Prevent TOCTOU out-of-bounds write\n\nFor the following path not holding the sock lock,\n\n  sctp_diag_dump() -\u003e sctp_for_each_endpoint() -\u003e sctp_ep_dump()\n\nmake sure not to exceed bounds in case the address list has grown\nbetween buffer allocation (time-of-check) and write (time-of-use)."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2025-12-09T04:09:48.196Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
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          "url": "https://git.kernel.org/stable/c/b106a68df0650b694b254427cd9250c04500edd3"
        },
        {
          "url": "https://git.kernel.org/stable/c/3006959371007fc2eae4a078f823c680fa52de1a"
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        {
          "url": "https://git.kernel.org/stable/c/72e3fea68eac8d088e44c3dd954e843478e9240e"
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          "url": "https://git.kernel.org/stable/c/c9119f243d9c0da3c3b5f577a328de3e7ffd1b42"
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        },
        {
          "url": "https://git.kernel.org/stable/c/95aef86ab231f047bb8085c70666059b58f53c09"
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      ],
      "title": "sctp: Prevent TOCTOU out-of-bounds write",
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  "cveMetadata": {
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    "assignerShortName": "Linux",
    "cveId": "CVE-2025-40331",
    "datePublished": "2025-12-09T04:09:48.196Z",
    "dateReserved": "2025-04-16T07:20:57.186Z",
    "dateUpdated": "2025-12-09T04:09:48.196Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
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  }
}


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