{
 "finding_id": "DF-3410",
 "verdict": "reproduced",
 "impact": "none",
 "confidence": "certain",
 "reproduce": {
  "build": "cc -O -o <prog> <prog>.c   (on the guest)",
  "run": "(no arg; root)",
  "expected": "live1.log DF-3410 section: flags before 0x8010 [PTP MCAST], after TUNSIFMODE(BCAST) 0x8002 [BCAST MCAST], raw word accepted, BCAST|0x100 correctly EINVALs"
 },
 "kernel_refs": [
  "sys/net/tun/if_tun.c:731-738",
  "sys/net/if.h:119-124"
 ],
 "artifacts": [
  "README.md",
  "VERDICT.md",
  "fix.diff",
  "live1.log",
  "manifest.json",
  "tunsifmode.c",
  "verdict.json"
 ],
 "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",
 "generated": "2026-10-25T17:56:24.683854"
}