vim-patch:7.4.714

Problem:    Illegal memory access when there are illegal bytes.
Solution:   Check the byte length of the character. (Dominique Pelle)

069dd08d8d

src/nvim/regexp.c

@@ -5333,10 +5333,12 @@ do_class:
     if ((len = (*mb_ptr2len)(opnd)) > 1) {
       if (ireg_ic && enc_utf8)
         cf = utf_fold(utf_ptr2char(opnd));
-      while (count < maxcount) {
-        for (i = 0; i < len; ++i)
-          if (opnd[i] != scan[i])
+      while (count < maxcount && (*mb_ptr2len)(scan) >= len) {
+        for (i = 0; i < len; ++i) {
+          if (opnd[i] != scan[i]) {
             break;
+          }
+        }
         if (i < len && (!ireg_ic || !enc_utf8
                         || utf_fold(utf_ptr2char(scan)) != cf))
           break;

src/nvim/version.c

@@ -410,7 +410,7 @@ static int included_patches[] = {
   // 717,
   // 716,
   // 715,
-  // 714,
+  714,
   713,
   712,
   711,