{
 "finding_id": "DF-3870",
 "status": "inconclusive",
 "reproduced": 0,
 "impact": "dos",
 "confidence": "speculative",
 "verdict": "vram_width/dram_channel_width integer truncation can yield 0 dram channels; number_of_dram_channels is used as a bw_div/bw_mod divisor in calculate_bandwidth -> kernel #DE. Requires a misdetecting VBIOS/board (hardware-gated); defensive clamp recommended.",
 "exploit_chain": "",
 "evidence": "VERDICT.md source chain; dce_calcs.c:2041->1185/1098",
 "kernel_refs": [
  "sys/dev/drm/amd/display/dc/calcs/dce_calcs.c:2041",
  "sys/dev/drm/amd/display/dc/calcs/dce_calcs.c:1185",
  "sys/dev/drm/amd/display/dc/calcs/dce_calcs.c:1098"
 ],
 "poc_changes": "no runnable PoC (hardware-gated)",
 "attempts": 0,
 "guest_uname": "DragonFly dfbsd 6.5-DEVELOPMENT x86_64 (no AMD GPU)",
 "runtime_sec": 0,
 "guest_dirty": 0,
 "build_cmd": "",
 "run_cmd": "",
 "code_hash": "",
 "notes": "Low severity: needs abnormal vram_width detection; normal boards are unaffected",
 "recommended_fix": "clamp number_of_dram_channels to >=1 in bw_calcs_init",
 "fix_status": "not_testable",
 "fix_baseline_reproduced": 0,
 "fix_patched_reproduced": 0,
 "fix_verdict": "one-line clamp, cannot validate on guest",
 "fix_evidence": "fix.diff"
}