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Jan 14, 2025 · Information Security

How a Microsoft Patch Nearly Crashed Linux: Code Review, CFI, and Open‑Source Lessons

A Microsoft‑submitted performance patch for the x86_64 architecture was merged into Linux kernel 6.13 without maintainer acknowledgment, breaking control‑flow integrity and nearly causing a system‑wide failure, prompting swift emergency fixes from Intel and AMD engineers and sparking a broader discussion on open‑source code‑review practices.