diff --git a/applypatch/imgdiff.cpp b/applypatch/imgdiff.cpp
index f6087de..4dc4810 100644
--- a/applypatch/imgdiff.cpp
+++ b/applypatch/imgdiff.cpp
@@ -224,6 +224,7 @@
   for (i = 0; i < cdcount; ++i) {
     if (!(cd[0] == 0x50 && cd[1] == 0x4b && cd[2] == 0x01 && cd[3] == 0x02)) {
       printf("bad central directory entry %d\n", i);
+      free(temp_entries);
       return NULL;
     }
 
@@ -1062,6 +1063,9 @@
     }
   }
 
+  free(patch_data);
+  free(patch_size);
+
   fclose(f);
 
   return 0;