{
  "finding_id": "DF-3817",
  "status": "inconclusive",
  "reproduced": 0,
  "impact": "none",
  "confidence": "likely",
  "verdict": "Source-certain: mpr.c:2065 passes the raw device-supplied U16 EventDataLength (dwords per MPI2, never validated) to hexdump() as a byte count against a ~96-128-byte reply-frame allocation \u2014 oversized values dump up to 64 KiB of adjacent kernel heap to the console. Gated behind MPR_EVENT debug (root) plus device cooperation. Runtime inconclusive: no SAS3 controller on the guest, events cannot be delivered (probe.log).",
  "exploit_chain": "",
  "evidence": "VERDICT.md; fix.diff (words->bytes + clamp to replyframesz).",
  "kernel_refs": [
    "sys/dev/raid/mpr/mpr.c:2065"
  ],
  "poc_changes": "No runnable PoC without hardware.",
  "attempts": 1,
  "guest_uname": "DragonFly dfbsd 6.5-DEVELOPMENT DragonFly 6.5-DEVELOPMENT #0: Thu Jul  2 06:02:54 UTC 2026  root@dfbsd:/usr/obj/usr/src/sys/X86_64_GENERIC  x86_64",
  "runtime_sec": 5,
  "guest_dirty": 0,
  "build_cmd": "",
  "run_cmd": "",
  "notes": "Same family of debug-print OOB exists in mpr_table.c MPR_DPRINT_PAGE/EVENT helpers (that files own audit).",
  "recommended_fix": "Convert EventDataLength words to bytes and clamp to the remaining reply-frame bytes before hexdump().",
  "fix_status": "not_testable",
  "fix_baseline_reproduced": 0,
  "fix_patched_reproduced": 0,
  "fix_verdict": "No controller on guest; event path cannot be exercised.",
  "fix_evidence": "fix.diff; probe.log."
}