CVE-2025-40331 (GCVE-0-2025-40331)

Vulnerability from cvelistv5 – Published: 2025-12-09 04:09 – Updated: 2025-12-09 04:09
VLAI?
Title
sctp: Prevent TOCTOU out-of-bounds write
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).
Severity ?
No CVSS data available.
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: 8f840e47f190cbe61a96945c13e9551048d42cef , < b106a68df0650b694b254427cd9250c04500edd3 (git)
Affected: 8f840e47f190cbe61a96945c13e9551048d42cef , < 3006959371007fc2eae4a078f823c680fa52de1a (git)
Affected: 8f840e47f190cbe61a96945c13e9551048d42cef , < 72e3fea68eac8d088e44c3dd954e843478e9240e (git)
Affected: 8f840e47f190cbe61a96945c13e9551048d42cef , < 584307275b2048991b2e8984962189b6cc0a9b85 (git)
Affected: 8f840e47f190cbe61a96945c13e9551048d42cef , < c9119f243d9c0da3c3b5f577a328de3e7ffd1b42 (git)
Affected: 8f840e47f190cbe61a96945c13e9551048d42cef , < 2fe08fcaacb7eb019fa9c81db39b2214de216677 (git)
Affected: 8f840e47f190cbe61a96945c13e9551048d42cef , < 89eac1e150dbd42963e13d23828cb8c4e0763196 (git)
Affected: 8f840e47f190cbe61a96945c13e9551048d42cef , < 95aef86ab231f047bb8085c70666059b58f53c09 (git)
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    Linux Linux Affected: 4.7
Unaffected: 0 , < 4.7 (semver)
Unaffected: 5.4.302 , ≤ 5.4.* (semver)
Unaffected: 5.10.247 , ≤ 5.10.* (semver)
Unaffected: 5.15.197 , ≤ 5.15.* (semver)
Unaffected: 6.1.159 , ≤ 6.1.* (semver)
Unaffected: 6.6.117 , ≤ 6.6.* (semver)
Unaffected: 6.12.58 , ≤ 6.12.* (semver)
Unaffected: 6.17.8 , ≤ 6.17.* (semver)
Unaffected: 6.18 , ≤ * (original_commit_for_fix)
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{
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          "programFiles": [
            "net/sctp/diag.c"
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              "version": "5.15.197",
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            }
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        }
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          "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)."
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      ],
      "providerMetadata": {
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        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
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    "datePublished": "2025-12-09T04:09:48.196Z",
    "dateReserved": "2025-04-16T07:20:57.186Z",
    "dateUpdated": "2025-12-09T04:09:48.196Z",
    "state": "PUBLISHED"
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  }
}


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Sightings

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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.