CVE-2025-40331sctp: Prevent TOCTOU out-of-bounds write
Updated under an hour ago ()
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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).
- CVSS
- 7.8 HIGH (v3.1, CNA)CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- Weakness (CWE)
- Not given
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- Linux
- NVD analysis
- Deferred
- Record last updated
- Aug 5, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
Linux Linux linux:linux (from the name) | from 8f840e47f190cbe61a96945c13e9551048d42cef before b106a68df0650b694b254427cd9250c04500edd3; from 8f840e47f190cbe61a96945c13e9551048d42cef before 3006959371007fc2eae4a078f823c680fa52de1a; from 8f840e47f190cbe61a96945c13e9551048d42cef before 72e3fea68eac8d088e44c3dd954e843478e9240e; from 8f840e47f190cbe61a96945c13e9551048d42cef before 584307275b2048991b2e8984962189b6cc0a9b85; from 8f840e47f190cbe61a96945c13e9551048d42cef before c9119f243d9c0da3c3b5f577a328de3e7ffd1b42; 8f840e47f190cbe61a96945c13e9551048d42cef builds before 2fe08fcaacb7eb019fa9c81db39b2214de216677; from 8f840e47f190cbe61a96945c13e9551048d42cef before 89eac1e150dbd42963e13d23828cb8c4e0763196; from 8f840e47f190cbe61a96945c13e9551048d42cef before 95aef86ab231f047bb8085c70666059b58f53c09 | CNA record |
References
- https://git.kernel.org/stable/c/b106a68df0650b694b254427cd9250c04500edd3
- https://git.kernel.org/stable/c/3006959371007fc2eae4a078f823c680fa52de1a
- https://git.kernel.org/stable/c/72e3fea68eac8d088e44c3dd954e843478e9240e
- https://git.kernel.org/stable/c/584307275b2048991b2e8984962189b6cc0a9b85
- https://git.kernel.org/stable/c/c9119f243d9c0da3c3b5f577a328de3e7ffd1b42
- https://git.kernel.org/stable/c/2fe08fcaacb7eb019fa9c81db39b2214de216677
- https://git.kernel.org/stable/c/89eac1e150dbd42963e13d23828cb8c4e0763196
- https://git.kernel.org/stable/c/95aef86ab231f047bb8085c70666059b58f53c09
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.