Global mutable pointer used as qsort comparator state: latent cross-bundle race

Summary

compareLatencies(:471) file-scope global set to stack-local array(:2291), used by ng_ppp_intcmp(:2384), nulled after sort(:2294). Two bundles concurrent: A finishes sets NULL, B inside kqsort derefs NULL[index] -> panic. Currently NOT reachable: netgraph7 funnels all items to cpu0. Latent if cpu0 funnel relaxed.