{
  "finding_id": "DF-5178",
  "status": "untested",
  "verdict": "untested (no in-tree trigger; Info parity hardening on AMD-only paths)",
  "reproduced": false,
  "impact": "latent tagged-union confusion -> masked MMIO mis-programming",
  "confidence": "certain",
  "exploit_chain": "",
  "evidence": "source trace: hw_hpd.c:107-112 vs the discriminating hw_ddc.c:99-127",
  "kernel_refs": [
    "sys/dev/drm/amd/display/dc/gpio/hw_hpd.c:107",
    "sys/dev/drm/amd/display/dc/gpio/hw_hpd.c:112"
  ],
  "poc_changes": "",
  "attempts": 0,
  "guest_uname": "DragonFly dfbsd 6.5-DEVELOPMENT #0: Thu Jul 2 06:02:54 UTC 2026 root@dfbsd:/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": "Info; Phase V skipped per contract",
  "recommended_fix": "reject config_data->type != GPIO_CONFIG_TYPE_HPD",
  "fix_status": "not_testable",
  "fix_baseline_reproduced": 0,
  "fix_patched_reproduced": 0,
  "fix_verdict": "",
  "fix_evidence": ""
}