Security context
What an agent needs to avoid regressing past fixes and find the next vuln in this repo.
pyav-org/pyav
main @ d0d7746
3
Fixes
0
CVEs
MEDIUM
Peak severity
66.7%
Coverage
Highlights
Denial of Service: 3 prior fixes. Scrutinize any change in this area.
av/audio/layout.py: most-fixed (1 issue). Treat as high-risk during review.
0 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.
Denial of Service: Missing NULL pointer checks on filter lookup results before executing linked operations can trigger immediate application crashes. This occurs when the underlying FFmpeg build lacks expected filter components. Future code integrating native FFmpeg filters must defensively assert filter availability.
Denial of Service: Incomplete resource deallocation during Python object lifecycle termination causes native memory leaks. Ensuring that libavutil channel layouts are explicitly uninitialized within Python destructors is necessary to prevent progressive memory exhaustion in long-running processes.
Denial of Service: Leaking memory through unreleased keys or context structures can exhaust system resources over time. When managing opaque context structures or dictionary elements, explicit native free calls must be coupled with the cleanup phase of the wrapping Python structures.