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.
Use CWE-416, Linux vendor hub and Linux Kernel product page to widen CVE-2026-31554 into its surrounding weakness, vendor, and product context.
Compare it with CVE-2026-7363, CVE-2026-7361 and CVE-2026-7359 for nearby disclosures in the same product family.