Added extra sanity check for real_file_path in extractor.py

src/binwalk/modules/extractor.py

@@ -190,7 +190,10 @@ class Extractor(Module):
                         self.output[r.file.path].extracted[r.offset].append(real_file_path)
 
                     # If recursion was specified, and the file is not the same one we just dd'd
-                    if self.matryoshka and file_path != dd_file_path and scan_extracted_files:
+                    if (self.matryoshka and
+                        file_path != dd_file_path and
+                        scan_extracted_files and
+                        self.directory in real_file_path):
                         # If the recursion level of this file is less than or equal to our desired recursion level
                         if len(real_file_path.split(self.directory)[1].split(os.path.sep)) <= self.matryoshka:
                             # If this is a directory and we are supposed to process directories for this extractor,