> crash the WASM instance I guess it depends on how you get to said crash, but no, data races on Wasm shared memory cannot "crash" anything. At worst racy read

> crash the WASM instance I guess it depends on how you get to said crash, but no, data races on Wasm shared memory cannot "crash" anything. At worst racy reads/writes can produce garbage (primitive) values and put garbage bits into memory locations involved in the accesses. Putting garbage bits into a Wasm memory could lead to a program's logic having bugs (e.g. it could then try to access out of bounds or trap for another reason), but the accesses themselves can't crash anything.