String#replace should check replacing string; fix #3374

This issue was reported by https://hackerone.com/tunz
parent 06b2e6a7
......@@ -519,6 +519,7 @@ str_replace(mrb_state *mrb, struct RString *s1, struct RString *s2)
long len;
check_frozen(mrb, s1);
if (s1 == s2) return mrb_obj_value(s1);
len = RSTR_LEN(s2);
if (RSTR_SHARED_P(s1)) {
str_decref(mrb, s1->as.heap.aux.shared);
......
Markdown is supported
0%
or
You are about to add 0 people to the discussion. Proceed with caution.
Finish editing this message first!
Please register or to comment