The author decided to stress test Ladybird’s web content with the DOM fuzzer “Domato”, uncovering various bugs found along the way. Surprisingly, within seconds, multiple issues were discovered, including null pointer dereferences and incorrect handling of onfoo event handlers. The author also highlights a spec bug in the HTML standard relating to the removal of iframes. By using tools like Domato, Ladybird was able to find and fix five real bugs, showcasing the importance of robust testing methods. The ultimate goal is to make Ladybird more resilient to unexpected inputs and eventually run it automatically in the cloud to uncover further issues.
https://awesomekling.substack.com/p/fuzzing-ladybird-with-tools-from