{
  "finding_id": "DF-4455",
  "poc_id": "DF-4455",
  "status": "untested",
  "reproduced": 0,
  "impact": "Permanent DRM-stack DoS: modeset ioctl never returns, holding mode_config.mutex and modeset locks forever",
  "confidence": "certain",
  "attempts": 0,
  "guest_uname": null,
  "code_hash": null,
  "exploit_chain": [],
  "evidence": "Unpriv DRM-auth client induces GPU lockup; masters next DPMS/modeset enters the spin. Bound-both-loops fix in finding markdown.",
  "kernel_refs": [
    "sys/dev/drm/radeon/radeon_legacy_crtc.c:229",
    "sys/dev/drm/radeon/radeon_legacy_crtc.c:256"
  ],
  "verdict": "not_run: no radeon GPU on guest; loop bodies provably unbounded (sibling helpers capped at 10000)",
  "fix_status": "not_testable",
  "fix_baseline_reproduced": 0,
  "fix_patched_reproduced": 0,
  "fix_verdict": "not_testable: no radeon GPU on guest",
  "fix_evidence": "fix in finding markdown"
}