Spectre on RISC-V Silicon

Our paper Spectre on RISC-V Silicon: Attacks and Defenses on Commercial Out-of-Order Processors has been accepted at USENIX Security &lsquo;26 . Paper / Artifact This post is the short version of what we found. RISC-V is an open, modular instruction set architecture that anyone can implement without a license fee. Many independent vendors build their own cores from it, ranging from tiny in-order…