CVE_2026_31431

CVE-2026-31431 Copy Fail – a 4‑byte page‑cache write primitive in the Linux kernel's authencesn AEAD template, exploitable via AFALG + splice. CVE-2026-31431 is a deterministic, race‑free logic bug in the Linux kernel. An unprivileged local user can overwrite 4 bytes in the page‑cache of any...