kernel: futex: Require sys_futex_requeue() to have identical flags

A flaw was found in the Linux kernel. A local attacker could exploit a use-after-free vulnerability by calling the sysfutexrequeue function with inconsistent flags. This could lead to a system crash, resulting in a denial of service, or potentially allow for privilege escalation...

CVE-2026-31554

In the Linux kernel, the following vulnerability has been resolved: futex: Require sysfutexrequeue to have identical flags Nicholas reported that his LLM found it was possible to create a UaF when sysfutexrequeue is used with different flags. The initial motivation for allowing different flags wa...

Linux kernel 安全漏洞

The Linux kernel is the core of the open-source operating system Linux, developed by the Linux Foundation in the United States. There is a security vulnerability in the Linux kernel, which stems from the sysfutexrequeue function allowing different flags. This vulnerability may lead to reuse after...

CVE-2026-31554: Use After Free

In the Linux kernel, the following vulnerability has been resolved: futex: Require sysfutexrequeue to have identical flags Nicholas reported that his LLM found it was possible to create a UaF when sysfutexrequeue is used with different flags. The initial motivation for allowing different flags wa...