CVE-2026-31554

Description

In the Linux kernel, the following vulnerability has been resolved: futex: Require sys_futex_requeue() to have identical flags Nicholas reported that his LLM found it was possible to create a UaF when sys_futex_requeue() is used with different flags. The initial motivation for allowing different flags was the variable sized futex, but since that hasn-t been merged (yet), simply mandate the flags are identical, as is the case for the old style sys_futex() requeue operations.