{
 "finding_id": "DF-3506",
 "verdict": "reproduced",
 "impact": "leak",
 "confidence": "certain",
 "reproduce": {
  "build": "cd /usr/src/sys/netgraph/fec && make   # fechg.c staged as ng_fec.c",
  "run": "kldload ./ng_fec.ko; sysctl kern.fechg.op=create; sysctl kern.fechg.op='oob 8 4141414141414141'; dmesg | grep 'tried to add'",
  "expected": "REACHABILITY DISCOVERY THAT GATES ALL FOUR v1-fec FINDINGS: the shipped stock ng_fec.ko cannot create a node at all - ng_fec_constructor deterministically panics 'trying to free NULL pointer' in _kfre"
 },
 "kernel_refs": [
  "sys/netgraph/fec/ng_fec.c:1172",
  "sys/netgraph/fec/ng_fec.c:1177",
  "sys/netgraph/fec/ng_fec.c:345",
  "sys/netgraph/fec/ng_fec.c:348",
  "sys/netgraph/fec/ng_fec.c:272"
 ],
 "artifacts": [
  "README.md",
  "VERDICT.md",
  "env.txt",
  "fec-sequence.log",
  "fechg.c",
  "fix.diff",
  "manifest.json",
  "ng_fec.harness.c",
  "panic.txt",
  "run.log",
  "verdict.json"
 ]
}