{
  "finding_id": "DF-4675",
  "poc_id": "DF-4675",
  "status": "untested",
  "reproduced": 0,
  "impact": "bktr_detach removes only minor==unit - /dev/tunerN and /dev/vbiN persist, stranding cdevs referencing the drivers dev_ops (dev_ops UAF after module unload)",
  "confidence": "certain",
  "attempts": 0,
  "guest_uname": null,
  "code_hash": null,
  "exploit_chain": [],
  "evidence": "devfs minor-match misses the +16/+32 aliases. Remove-all-three-minors fix.",
  "kernel_refs": [
    "sys/dev/video/bktr/bktr_os.c:325",
    "sys/dev/video/bktr/bktr_os.c:367"
  ],
  "verdict": "not_run: Info lifecycle defect; root/hot-removal gated",
  "fix_status": "not_testable",
  "fix_baseline_reproduced": 0,
  "fix_patched_reproduced": 0,
  "fix_verdict": "not_testable: hardware-gated (no Bt848 / no CardMan on guest)",
  "fix_evidence": "fix in finding markdown"
}