DF-4016 / verdict.json
{ "finding_id": "DF-4016", "status": "untested", "attempts": 0, "reproduced": 0, "confidence": "certain", "impact": "mps_user_btdh off-by-one: target > max_devices lets TargetID==max_devices read mapping_table[max_devices] one 24-byte element past the heap allocation, disclosing a garbage u16 DevHandle to the operator-group caller. mpr twin at mpr_user.c:2240.", "verdict": "source-verified; HW-gated", "exploit_chain": [], "evidence": "source-only; path:line citations in pass-2 result block", "kernel_refs": [ "sys/dev/raid/mps/mps_user.c:2021", "sys/dev/raid/mps/mps_user.c:2026" ], "guest_uname": "", "code_hash": "", "artifact_dir": "findings/poc/DF-4016/", "fix_status": "not_testable", "fix_baseline_reproduced": 0, "fix_patched_reproduced": 0, "fix_verdict": "change the check to target >= sc->max_devices (and fix the mpr twin)", "fix_evidence": "source-only" } |