Closing beyond-SOTA security review of wifi-densepose-wasm-edge (ADR-040,
~70 edge modules). The two WASM↔host boundaries (lib.rs::on_frame/on_timer
and bin/ghost_hunter.rs::on_frame) read raw IEEE-754 f32 from the csi_get_*
imports with no finiteness check — the crate had zero is_finite/is_nan
guards and its clamp helpers propagate NaN. A single non-finite host value
latches NaN into long-lived per-module accumulators (EMA / Welford / phasor
sums / anomaly baselines), after which detectors fail degraded (stuck gate
state, silently-disabled checks) — silent corruption, not a crash.
Add sanitize_host_f32() (non-finite -> 0.0, core-only for no_std) applied at
every host_get_* float read: one chokepoint covering all downstream modules,
mirroring the existing M-01 negative-n_subcarriers boundary clamp. LOW /
defense-in-depth (the Tier-2 DSP firmware supplies the imports, a semi-trusted
boundary).
Pinned by boundary_tests::{sanitize_passes_finite_values_through,
sanitize_maps_non_finite_to_zero,
coherence_monitor_nan_latches_without_sanitize_but_not_with} — the last
asserts on the current CoherenceMonitor that a raw NaN frame latches the
smoothed score while the sanitized path stays finite.
Other review dimensions attested clean with evidence (see CHANGELOG): no
hot-path panics (all unwrap/expect are test-only or std-gated RVF builder),
all bounds min()-clamped, all index-by-cast const-bounded or guarded, no
leaking closures (no move||/forget/leak), no secrets.
Verified: host `cargo test --features std,medical-experimental` 672 passed /
0 failed (+3 new tests); all three wasm32-unknown-unknown release artifacts
build clean (lib default no_std/panic=abort, ghost_hunter standalone-bin,
medical-experimental); Python proof VERDICT PASS, hash unchanged.
The Rust port lived two directories deep (rust-port/wifi-densepose-rs/)
without any sibling under rust-port/ that warranted the extra level.
Move the whole workspace up to v2/ to match v1/ (Python) at the same
depth and shorten every cd / build command across the repo.
git mv preserves history for all tracked files. 60 files updated for
path references (CI workflows, ADRs, docs, scripts, READMEs, internal
.claude-flow state). Two manual fixes for relative-cd paths in
CLAUDE.md and ADR-043 that became wrong after the depth change
(cd ../.. → cd ..).
Validated:
- cargo check --workspace --no-default-features → clean (after target/
nuke; the gitignored target/ was carried by the OS rename and had
hard-coded old paths in build scripts)
- cargo test --workspace --no-default-features → 1,539 passed, 0 failed,
8 ignored (same totals as pre-rename)
- ESP32-S3 on COM7 → still streaming live CSI (cb #40300, RSSI -64 dBm)
After-merge follow-up: contributors should `rm -rf v2/target` once and
let cargo regenerate from the new path.
rUv