New project: chrome-wasm-fuzzer

[not2dayred-max]

This is a dedicated fuzz target for Chrome's V8 WebAssembly parser. The fuzzer uses libprotobuf-mutator to generate malformed WASM modules, aiming to find OOB writes, type confusion, and JIT crashes.

• Language: C++
• Fuzzing Engine: libfuzzer
• Sanitizers: AddressSanitizer, UndefinedBehaviorSanitizer
• Dependencies: Base V8 components (handled in BUILD.gn)
• Why this? WASM is a high-risk area for Chrome (15+ CVEs in 2025); this targets instantiate and compile paths.

Ready for integration. Let me know if adjustments needed.

[jonathanmetzman]

Do you work on this project? I'm think you should probably upstream this target since v8 is fuzzed in Chrome