{
  "finding_id": "DF-4252",
  "status": "untested",
  "reproduced": 0,
  "impact": "none",
  "confidence": "certain",
  "verdict": "mprsas_fw_work IR_CONFIGURATION_CHANGE_LIST case returns early at :330 when mpr_alloc_command fails, skipping both mprsas_startup_decrement (:455) and mprsas_fw_event_free (:780): the fw_event+event_data allocations leak and the startup refcount taken in mprsas_evt_handler (:170-174) never drops, so discovery completion can hang (simq stays frozen) until a forced drain; leak amplifies the very pool exhaustion that triggers it (DF-4015-family pattern, mpr side).",
  "exploit_chain": "",
  "evidence": "VERDICT.md refcount trace; build.log compile-validation.",
  "kernel_refs": [
    "sys/dev/raid/mpr/mpr_sas_lsi.c:327",
    "sys/dev/raid/mpr/mpr_sas_lsi.c:455",
    "sys/dev/raid/mpr/mpr_sas_lsi.c:780",
    "sys/dev/raid/mpr/mpr_sas.c:204"
  ],
  "poc_changes": "n/a - pass-2 finding; trigger documentation written fresh (hardware-gated, no seed PoC existed)",
  "attempts": 1,
  "guest_uname": "DragonFly dfbsd 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": 130,
  "guest_dirty": 0,
  "build_cmd": "see build.sh / build.log (hardware absent; mpr fixes compile-validated on guest)",
  "run_cmd": "./run.sh (hardware-gating probe)",
  "code_hash": "3708db40389ed9322babbb72c804ea611cf0f586fd1d0924facfbcbe542cda82",
  "notes": "Error-path resource+refcount leak. | Status untested = target device absent on guest (contracts not_testable class).",
  "recommended_fix": "decrement startup refcount + free fw_event before early return",
  "fix_status": "not_testable",
  "fix_baseline_reproduced": 0,
  "fix_patched_reproduced": 0,
  "fix_verdict": "not_testable at runtime; compile-validated (decrement+free before return).",
  "fix_evidence": "build.log: patched module builds clean."
}