Stream: wasmtime

Topic: A fuzzing experiment // use `mutatis` for new fuzzers


view this post on Zulip fitzgen (he/him) (Jun 01 2026 at 16:21):

https://fitzgen.com/2026/06/01/structure-aware-fuzzing-experiment.html

I think we should write new fuzzers with mutatis and the mutation-based paradigm, rather than with arbitrary and the generation-based paradigm from now on. Happy to discuss.

In an ideal world with unlimited engineering resources we should probably rewrite wasm-smith to use mutatis as well (or I guess make wasm-mutate a real thing).

view this post on Zulip fitzgen (he/him) (Jun 01 2026 at 16:25):

I posted it to r/rust as well, fwiw. might get some interesting discussion there as the day goes on

https://old.reddit.com/r/rust/comments/1ttx29p/a_structureaware_fuzzing_experiment/


Last updated: Jul 29 2026 at 05:03 UTC