Fix string scanning code

volatility3/framework/objects/utility.py

@@ -119,20 +119,26 @@ def gather_contiguous_bytes_from_address(
 
     data = b""
 
-    last_address = None
+    if isinstance(data_layer, interfaces.layers.TranslationLayerInterface):
+        last_address = None
+
+        for address, length, _, _, _ in data_layer.mapping(
+            offset=starting_address, length=count, ignore_errors=True
+        ):
+            # Used to track when we hit a paged out page
+            if not last_address:
+                last_address = address + length
+
+            # we hit a swapped out page
+            elif last_address and last_address != address:
+                break
+
+            data += data_layer.read(address, length)
 
-    for address, length, _, _, _ in data_layer.mapping(
-        offset=starting_address, length=count, ignore_errors=True
-    ):
-        # Used to track when we hit a paged out page
-        if not last_address:
             last_address = address + length
 
-        # we hit a swapped out page
-        elif last_address and last_address != address:
-            break
-
-        data += data_layer.read(address, length)
+    elif starting_address + count < data_layer.maximum_address:
+        data = data_layer.read(starting_address, count)
 
     # if we were able to read from the first page, we want to try and construct the string
     # if the first page fails -> throw exception
@@ -143,8 +149,6 @@ def gather_contiguous_bytes_from_address(
             layer_name=data_layer, invalid_address=starting_address
         )
 
-    return data
-
 
 def bytes_to_decoded_string(data: bytes, encoding: str, errors: str) -> bytes:
     """