The V8 team has developed the V8 Sandbox to tackle browser exploits originating from memory safety bugs. Despite V8 being written in C++, the vulnerabilities are complex logic issues rather than traditional memory corruption bugs. GraalJS, a JavaScript engine built using Truffle and Java, eliminates memory safety bugs by design. Truffle fundamentally changes VM architecture by automatically transforming interpreter code into compiled machine code, ensuring memory safety. Graal compiler collaborates with Truffle to recompile hot functions dynamically, optimizing performance while maintaining security. This innovative approach eliminates safety bugs and enhances performance by enhancing constant folding and implementing advanced optimizations, making Truffle a game-changer in the development of language runtimes.
https://medium.com/graalvm/writing-truly-memory-safe-jit-compilers-f79ad44558dd