Allocate and copy the appropriate amount of memory

xtldr2/volume.c

@@ -839,8 +839,8 @@ BlpDissectVolumeArcPath(IN PWCHAR SystemPath,
     /* Store ARC name if possible */
     if(ArcName)
     {
-        BlMemoryAllocatePool(ArcLength, (PVOID *)&LocalArcName);
-        RtlCopyMemory(LocalArcName, SystemPath, ArcLength);
+        BlMemoryAllocatePool(ArcLength * sizeof(WCHAR), (PVOID *)&LocalArcName);
+        RtlCopyMemory(LocalArcName, SystemPath, ArcLength * sizeof(WCHAR));
         LocalArcName[ArcLength] = '\0';
         *ArcName = LocalArcName;
     }