HB
Copy Fail: CVE-2026-31431 — The 732-Byte Script That Roots Every Linux Since 2017
A deterministic logic bug in the Linux kernel’s crypto subsystem lets an unprivileged local user write 4 arbitrary bytes into the page cache of any readable file. No races, no retries, no kernel offsets. A 732-byte Python script turns any user account into root on every ma…