Highlights
Memory Safety: 2 prior fixes. Scrutinize any change in this area.
futures-core/src/stream/stream_obj.rs: most-fixed (1 issue). Treat as high-risk during review.
5 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.
Use After Free: Future panics during drop can release task reference counts prematurely, leading to use-after-free.
Memory Corruption: Unsafe `set_len` without bounds check allows a malicious reader to write out-of-bounds.
Use-After-Free: `Pin<Box>` dropped while raw pointer still in use causes use-after-free.