{
 "finding_id": "DF-4431",
 "poc_id": "DF-4431",
 "status": "untested",
 "reproduced": 0,
 "impact": "Misprogrammed DCSURF_ADDR_CONFIG (fields set to max) -> display-pipe hang on DCN1 hw with zeroed/garbage GB_ADDR_CONFIG readback",
 "confidence": "likely",
 "attempts": 0,
 "guest_uname": null,
 "code_hash": null,
 "exploit_chain": [],
 "evidence": "Low/hardening; values kernel-read from GPU not userspace-set; trigger is device fault/reset class. Clamp-before-REG_UPDATE fix in finding markdown.",
 "kernel_refs": [
  "sys/dev/drm/amd/display/dc/dcn10/dcn10_hubp.c:133",
  "sys/dev/drm/amd/display/dc/dcn10/dcn10_hubp.c:141",
  "sys/dev/drm/amd/display/dc/dcn10/dcn10_hubp.c:146"
 ],
 "verdict": "not_run: DCN1 GPU absent from guest (bochs only); arithmetic source-proven (ilog2(0)=fls(0)-1=-1 -> masked field max)",
 "fix_status": "not_testable",
 "fix_baseline_reproduced": 0,
 "fix_patched_reproduced": 0,
 "fix_verdict": "not_testable: hardware-gated",
 "fix_evidence": "fix.diff in finding markdown"
}