ExAllocateCallBack

EX_RUNDOWN_REF *__fastcall ExAllocateCallBack(KSPIN_LOCK a1, KSPIN_LOCK a2){
  EX_RUNDOWN_REF *PoolWithTag; 
  EX_RUNDOWN_REF *v5; 
  PoolWithTag = (EX_RUNDOWN_REF *)ExAllocatePoolWithTag(NonPagedPoolNx, 0x18ui64, 0x62726243ui64);
  v5 = PoolWithTag;
  if( PoolWithTag )
  {
    PoolWithTag[1].Count = a1;
    PoolWithTag[2].Count = a2;
    ExInitializePushLock(PoolWithTag);
  }
  return v5;
}

Referenced by:

DbgkLkmdRegisterCallback
KeRegisterBoundCallback
PsEstablishWin32Callouts
PsSetLoadImageNotifyRoutineEx
PspSetCreateProcessNotifyRoutine
PspSetCreateThreadNotifyRoutine