{
  "finding_id": "DF-3502",
  "verdict": "reproduced",
  "impact": "panic",
  "reproduce": {
    "build": "sh enablers.sh && sh fixes.sh",
    "run": "sh run.sh",
    "expected": "baseline (enablers only): Fatal trap 12 page fault, VA 0x3f8, at ng_fec_input+0x30, current process Idle, after create->add vtnet0->shutdown->echo->create->ifconfig vtnet0 up->ping. With fix.diff applied: SURVIVED, 3/3 pings."
  },
  "kernel_refs": ["sys/netgraph/fec/ng_fec.c:379", "sys/netgraph/fec/ng_fec.c:464", "sys/netgraph/fec/ng_fec.c:752", "sys/netgraph/fec/ng_fec.c:1133", "sys/netgraph/fec/ng_fec.c:1233"],
  "artifacts": ["README.md", "VERDICT.md", "run.log", "run.sh", "panic.txt", "enablers.sh", "fixes.sh", "fix.diff", "verdict.json", "manifest.json"]
}