FFmpeg H.264 Integer Overflow 16-Year Bug

Description

Integer overflow in FFmpeg H.264 decoder introduced by a 2003 commit and exposed by a 2010 refactor. Missed by every fuzzer and human reviewer for 16 years. Autonomously discovered by Claude Mythos Preview as one of three showcase findings for Project Glasswing.

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Sources

src-20260409-28c9af66ed0c