invalid read memory access #624

hunspell · Nov 12, 2019 · ac938e2 · ac938e2 · kloczek · Nov 12, 2019
1 parent 30bd4bd
commit ac938e2
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/src/hunspell/suggestmgr.cxx b/src/hunspell/suggestmgr.cxx
@@ -2040,7 +2040,7 @@ int SuggestMgr::leftcommonsubstring(
   int l2 = su2.size();
   // decapitalize dictionary word
   if (complexprefixes) {
-    if (su1[l1 - 1] == su2[l2 - 1])
+    if (l1 && l2 && su1[l1 - 1] == su2[l2 - 1])
       return 1;
   } else {
     unsigned short idx = su2.empty() ? 0 : (su2[0].h << 8) + su2[0].l;