{
 "finding_id": "DF-4380",
 "status": "untested",
 "attempts": 0,
 "reproduced": 0,
 "confidence": "speculative",
 "impact": "Latent divide-by-zero family in calculate_ss (percentage_divider / modulation rate / modulation_time); runtime-dead today because ENABLE_SS is hardcoded 0 at both producers. Becomes a crafted-VBIOS #DE panic the moment any change wires it.",
 "verdict": "source-verified; latent (trigger flag hardcoded 0)",
 "exploit_chain": [],
 "evidence": "source-only; path:line citations in pass-2 result block",
 "kernel_refs": [
  "sys/dev/drm/amd/display/dc/dce/dce_clock_source.c:673",
  "sys/dev/drm/amd/display/dc/dce/dce_clock_source.c:689"
 ],
 "guest_uname": "",
 "code_hash": "",
 "artifact_dir": "findings/poc/DF-4380/",
 "fix_status": "not_testable",
 "fix_baseline_reproduced": 0,
 "fix_patched_reproduced": 0,
 "fix_verdict": "skip entries with spread_percentage_divider == 0 || spread_spectrum_range == 0 in get_ss_info_from_atombios (treat like the HDMI percentage>6 rejection); optionally guard calculate_ss entry",
 "fix_evidence": "source-only"
}