fix: Issue 25893 in oss-fuzz: Stack-buffer-overflow

kkos · Sep 24, 2020 · a4aaa67 · a4aaa67
1 parent 48a40c7
commit a4aaa67
Showing 1 changed file with 2 additions and 3 deletions.
diff --git a/src/unicode.c b/src/unicode.c
@@ -431,13 +431,12 @@ onigenc_unicode_get_case_fold_codes_by_str(OnigEncoding enc,
 
       for (i = 0; i < ncs[0]; i++) {
         for (j = 0; j < ncs[1]; j++) {
+          if (cs[0][i] == orig_codes[0] && cs[1][j] == orig_codes[1])
+            continue;
           items[n].byte_len = lens[1];
           items[n].code_len = 2;
           items[n].code[0]  = cs[0][i];
           items[n].code[1]  = cs[1][j];
-          if (items[n].code[0] == orig_codes[0] &&
-              items[n].code[1] == orig_codes[1])
-            continue;
           n++;
         }
       }