{
 "finding_id": "DF-3284",
 "status": "reproduced",
 "reproduced": 1,
 "poc_path": "findings/poc/DF-3284",
 "artifact_dir": "findings/poc/DF-3284",
 "build_cmd": "./build.sh",
 "run_cmd": "df3284 1",
 "code_hash": "48395bc4a07024b392777748ae52afd15e771ec2182d3ff3e2ebe1785102b30b",
 "build_log": "build.log",
 "run_log": "allruns.log",
 "impact": "none",
 "confidence": "certain",
 "verdict": "raw 802.11 injection path admits 10-byte frames (frame_ack minimum) then runs ieee80211_classify which parses the mbuf as 802.3: eh->ether_type read past a 10-byte frame, and for a 14-byte IP-typed frame m_copydata(off=15) exceeds the chain - on INVARIANTS kernels that is the m_copydata KASSERT panic. Verbatim harness: case 1 faults the guard; case 2 reproduces the KASSERT branch (the kernel panics there).",
 "exploit_chain": "",
 "evidence": "case 1 rc=139 (guard); case 2 emits the m_copydata KASSERT-fire proof; control rc=0; FIXED 802.3-header gate clean",
 "kernel_refs": [
  "sys/netproto/802_11/wlan/ieee80211_output.c:715",
  "sys/netproto/802_11/wlan/ieee80211_output.c:723-736",
  "sys/netproto/802_11/wlan/ieee80211_output.c:1180-1240",
  "sys/kern/uipc_mbuf.c:m_copydata"
 ],
 "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
}