DF-4628 / verdict.json
{ "finding_id": "DF-4628", "poc_id": "DF-4628", "status": "untested", "reproduced": 0, "impact": "UAF write (gpiod_set_value mutates desc->flags/value) on first panel-enable after rebind; potentially exploitable if the freed chunk is reclaimed", "confidence": "speculative", "attempts": 0, "guest_uname": null, "code_hash": null, "exploit_chain": [], "evidence": "Function-static gpio table caches devm descriptors across device unbind/rebind with no invalidation. Per-device-table + clear-on-forget fix.", "kernel_refs": [ "sys/dev/drm/i915/intel_dsi_vbt.c:304", "sys/dev/drm/i915/intel_dsi_vbt.c:305", "sys/dev/drm/i915/intel_dsi_vbt.c:319", "sys/dev/drm/i915/intel_dsi_vbt.c:322" ], "verdict": "not_run: BXT-class hardware + unbind/rebind cycle needed; speculative per pass-2 discipline", "fix_status": "not_testable", "fix_baseline_reproduced": 0, "fix_patched_reproduced": 0, "fix_verdict": "not_testable: hardware-gated (no Intel DSI panel / no mpt HBA on guest)", "fix_evidence": "fix in finding markdown" } |