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java-topology/defects/dendrite/patch/CLEAN.md
russell@unturf.com 7491349edc game-engines: allegro5/bullet3/box2d/dry CWE-407 scan 
bullet3-0001: btGhostObject::addOverlappingObjectInternal O(N²) linear dedup
  per broadphase step — even carries "too slow" self-admission comment (HIGH)
bullet3-0002: btSoftRigidCollisionAlgorithm::processCollision O(C×D) per
  frame on m_collisionDisabledObjects plain array (MEDIUM)
allegro5: CLEAN (vector_contains only on non-hot setup paths)
box2d: CLEAN (v3 rewrite uses b2HashSet throughout)
dry: CLEAN (HashSet/HashMap on all hot dedup paths)
2026-03-29 19:50:49 -04:00

692 B
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dendrite — CWE-407 Scan: CLEAN

Scanned: 2026-03-29

Scope

  • roomserver/internal/query/query.go — GetAuthChain: authEventsMap = make(map[string]gomatrixserverlib.PDU) (map-based dedup)
  • roomserver/internal/helpers/auth.go — GetAuthEvents, loadAuthEvents: map-based
  • roomserver/internal/input/input_events.go — fetchAuthEvents: map-based
  • Federation auth chain traversal throughout: all use Go map[string]T for O(1) key lookup

Verdict

No CWE-407 (algorithmic complexity / quadratic membership check) defects found. All room auth chain and event DAG traversal in Dendrite uses Go map for O(1) deduplication. No slice-based linear scans in hot traversal paths.