FFmpeg Divide-by-Zero Bug Tests Vibecoding

The real story is not the bug’s severity—it’s how cheaply AI can expand fuzzing coverage against mature, widely deployed C code.

• –FFmpeg’s broad use makes even narrow parser crashes relevant to downstream media applications.
• –The flaw occurs when zero-valued channel metadata reaches a division operation without sufficient validation.
• –HN discussion correctly centers on verification, triage, and patch quality—not merely generating a crash.
• –AI-assisted fuzzing can multiply security findings, but maintainers still need reproducible inputs, minimized test cases, and regression tests.
• –This is a useful security workflow: let AI explore, then demand human-grade proof before calling the result significant.