We found a division by zero bug in FFmpeg with a vibecoded fuzzer

This bug is a classic example of why fuzzing is the unsung hero of software security. A division by zero might sound trivial, but in a C codebase like FFmpeg's, it can lead to anything from a segfault to a heap overflow. The fact that it was found by a "vibecoded fuzzer" — presumably an AI-assisted or heuristic-driven tool — shows that the old-school random byte injection isn't the only game in town anymore. We're seeing a shift where fuzzers are getting smarter, targeting specific code paths or even generating inputs based on semantic understanding of the format. That's genuinely exciting for open-source security. But let's not get too starry-eyed. The real takeaway here is that FFmpeg's attack surface is enormous. It parses dozens of formats, each with their own quirks and edge cases. Every new feature is a new potential bug. The project has been around for decades and still has these issues — that's not a knock on the maintainers, who do heroic work, but a testament to the sheer complexity of media processing. The community should treat every fuzzing find as a reminder to keep funding and supporting these tools. Because the alternative is waiting for a malicious actor to find the same bug first. Also, shoutout to the person who reported this with a reproducible case. That's the open-source spirit: find it, document it, fix it. No drama, just progress. Now, if only the fix lands before the next release candidate...