CVE-2026-31554

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.