Highlights
Out-of-bounds Access: 10 prior fixes. Scrutinize any change in this area.
libfaad/syntax.c: most-fixed (15 issues). Treat as high-risk during review.
36 high-severity fixes in this history; regressions here are high-impact.
Recurring patterns
The bug types that recur here, drawn from past fixes, not open vulnerabilities.
Out-of-bounds Access: Most frequently patched class; multiple distinct index-validation gaps (section data, channel counts, scale factors) have allowed OOB reads/writes.
Integer Overflow: Integer overflows in fixed-point arithmetic and allocation-size calculations have led to OOB reads and heap overflows; multiple fixes needed to add pre-checks or adjust shifts.
Heap Buffer Overflow: Allocation size calculations and loop bounds in MP4 parsing and audio output have repeatedly overflowed, leading to heap corruption.