{
  "finding_id": "DF-5791",
  "status": "untested",
  "verdict": "untested (speculative; needs kern.do_async_attach=1 + mid-attach deregistration race - not rig-economical per contract)",
  "reproduced": false,
  "impact": "latent UAF write into freed softc/device",
  "confidence": "speculative",
  "exploit_chain": "",
  "evidence": "static trace (DF-5789 rig carries the family proof)",
  "kernel_refs": [
    "sys/kern/subr_bus.c:2136",
    "sys/kern/subr_bus.c:2077"
  ],
  "poc_changes": "",
  "attempts": 0,
  "guest_uname": "DragonFly dfbsd 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": 0,
  "guest_dirty": 0,
  "build_cmd": "n/a",
  "run_cmd": "n/a",
  "code_hash": "",
  "notes": "Low speculative; Phase V skipped per contract",
  "recommended_fix": "device_detach refuse DS_INPROGRESS (EBUSY)",
  "fix_status": "not_testable",
  "fix_baseline_reproduced": 0,
  "fix_patched_reproduced": 0,
  "fix_verdict": "",
  "fix_evidence": ""
}