CVE-2025-40331

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 3.1

7.8CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

EPSS

0.2% chance of exploitation in the next 30 days; higher than 8% of CVEs (scores of 2026-10-25)

Published

2025-12-09

Modified

2026-10-14

Record from

the NVD, synced 2026-10-19

References

• https://git.kernel.org/stable/c/2fe08fcaacb7eb019fa9c81db39b2214de216677
• https://git.kernel.org/stable/c/3006959371007fc2eae4a078f823c680fa52de1a
• https://git.kernel.org/stable/c/584307275b2048991b2e8984962189b6cc0a9b85
• https://git.kernel.org/stable/c/72e3fea68eac8d088e44c3dd954e843478e9240e
• https://git.kernel.org/stable/c/89eac1e150dbd42963e13d23828cb8c4e0763196

Check your stackJSON