LLVM CFI and Cross-Language LLVM CFI Support for Rust
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This post was originally published at https://bughunters.google.com/blog/4805571163848704/llvm-cfi-and-cross-language-llvm-cfi-support-for-rust.
We’re pleased to share that we’ve worked with the Rust community to add support for LLVM CFI and cross-language LLVM CFI (and LLVM KCFI and cross-language LLVM KCFI) to the Rust compiler as part of our work in the Rust Exploit Mitigations Project Group. This is the first implementation of cross-language, fine-grained, forward-edge control flow protection for mixed-language binaries that we know of.