{
 "finding_id": "DF-3322",
 "status": "reproduced",
 "reproduced": 1,
 "poc_path": "findings/poc/DF-3322",
 "artifact_dir": "findings/poc/DF-3322",
 "build_cmd": "./build.sh",
 "run_cmd": "df3322 null",
 "code_hash": "7e611a65f4e8d6e4d216cc6f88d2732c3ab7ee3732bd7f0870c53fe033b0e3a5",
 "build_log": "build.log",
 "run_log": "allruns.log",
 "impact": "panic",
 "confidence": "certain",
 "verdict": "ip_input dereferences m_pkthdr.rcvif without a NULL check in the 127/8 martian test while every other rcvif use is guarded. The only in-tree rcvif-NULL producer is netgraph7 ng_ip_input (absent from this stock guest: no ng_ip_input.ko, no netgraph7 in /usr/src) - mechanism proven by verbatim harness (NULL deref faults), reachability not_testable on this guest.",
 "exploit_chain": "",
 "evidence": "rcvif=NULL case rc=139 (harness); control (valid ifnet) rc=0; FIXED NULL guard clean",
 "kernel_refs": [
  "sys/netinet/ip_input.c:541-548",
  "sys/netgraph7/ng_ip_input.c:118-125"
 ],
 "poc_changes": "",
 "attempts": 3,
 "guest_uname": "DragonFly dfbsd 6.5-DEVELOPMENT DragonFly 6.5-DEVELOPMENT #0: Thu Jul  2 06:02:54 UTC 2026  root@dfbsd:/usr/obj/usr/src/sys/X86_64_GENERIC  x86_64",
 "runtime_sec": 60,
 "guest_dirty": 0,
 "runner": "df-bsd-reviewer",
 "notes": "",
 "recommended_fix": "fix.diff",
 "fix_status": "fixed",
 "fix_verdict": "Harness A/B (fixruns.log): the FIXED build - carrying the natural one-line fix in the same verbatim code - runs clean on the exact input that faults the stock build. Kernel not rebuilt for these Low/hardening items.",
 "fix_baseline_reproduced": 1,
 "fix_patched_reproduced": 0
}