{
 "finding_id": "DF-2970",
 "verdict": "reproduced",
 "impact": "denial_of_service",
 "reproduce": {
  "build": "make (KMOD dfv_safe); cc dfv0pty.c",
  "run": "kldload ng_tty; kldload dfv_safe.ko; sysctl -w dfv.l2970=1; ./dfv0pty 8 &; sysctl -w dfv.l2970=2; ... =3",
  "expected": "ldisc_register(6, fake) silently accepted over live registration; deregister-in-use accepted; l_open=1 l_close=0"
 },
 "kernel_refs": [
  "sys/kern/tty_conf.c:105",
  "sys/kern/tty_conf.c:110",
  "sys/kern/tty_conf.c:123"
 ],
 "artifacts": [
  "README.md",
  "VERDICT.md",
  "build.sh",
  "dfv_safe.c",
  "env.txt",
  "fix.diff",
  "fix_run.log",
  "manifest.json",
  "run.log",
  "run.sh",
  "verdict.json"
 ],
 "fix_status": "fixed"
}