* Do not compare empty parts

diff --git a/src/expressions.c b/src/expressions.c
index b377fa0baa6fb1c96a6861e82dd60dc4014ae685..b4615c927a7e617feacdc7ad7f43986955734704 100644 (file)
--- a/src/expressions.c
+++ b/src/expressions.c
@@ -952,10 +952,12 @@ rspamd_parts_distance (struct worker_task * task, GList * args, void *unused)
                        return FALSE;
                }
                p2 = cur->data;
-               diff = fuzzy_compare_hashes (p1->fuzzy, p2->fuzzy);
-               debug_task ("got likeliness between parts of %d%%, threshold is %d%%", diff, threshold);
-               if (diff <= threshold) {
-                       return TRUE;
+               if (!p1->is_empty && !p2->is_empty) {
+                       diff = fuzzy_compare_hashes (p1->fuzzy, p2->fuzzy);
+                       debug_task ("got likeliness between parts of %d%%, threshold is %d%%", diff, threshold);
+                       if (diff <= threshold) {
+                               return TRUE;
+                       }
                }
        }
        else {