extra checks and debug messages

volatility3/framework/plugins/linux/pagecache.py

@@ -790,13 +790,34 @@ class RecoverFs(plugins.PluginInterface):
 
         visited_paths = seen_prefixes = set()
         for inode_in in inodes_iter:
+
+            # Code is slightly duplicated here with the if-block below.
+            # However this prevents unneeded tar manipulation if fifo
+            # or sock inodes comes through for example.
+            if not (
+                inode_in.inode.is_reg or inode_in.inode.is_dir or inode_in.inode.is_link
+            ):
+                continue
+
+            if not inode_in.path.startswith("/"):
+                vollog.debug(
+                    f'Skipping processing of potentially smeared "{inode_in.path}" inode name as it does not starts with a "/".'
+                )
+                continue
+
+            # Construct the output path
             if uuid_as_prefix:
                 prefix = f"/{inode_in.superblock.uuid}"
             else:
                 prefix = f"/{inode_in.superblock.major}:{inode_in.superblock.minor}"
             prefixed_path = prefix + inode_in.path
 
+            # Sanity check for already processed paths
             if prefixed_path in visited_paths:
+                vollog.log(
+                    constants.LOGLEVEL_VV,
+                    f'Already processed prefixed inode path: "{prefixed_path}".',
+                )
                 continue
             elif prefix not in seen_prefixes:
                 self._tar_add_dir(tar, prefix, mtime)