This is an excellent paper evaluating various CPU-based memory tagging approaches and their ROI against vulnerabilities,” David Weston said. “Rust can’t and won’t be the only solution to increasing memory safety in Windows. While many “unsafe” code calls to extern functions still exist, the number of unsafe blocks and functions decreases as more code is ported. The integration of Rust has also driven changes upstream in the language itself, with more try_ methods for Vec that don’t panic on OOM. So far, Microsoft has made significant progress, such as using standard Rust APIs like Vec and Result, which are easier to write and understand than their C++ counterparts.Īt the same time, the performance of the ported code has been excellent, with no noticeable difference in Office apps as measured by PCMark 10.
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