From 285ce9d8aa9ecfd7b749ae02784a2ba68290293a Mon Sep 17 00:00:00 2001 From: "Yukihiro \"Matz\" Matsumoto" Date: Mon, 12 Aug 2019 16:51:01 +0900 Subject: Replacing region may overwrap with the target region; fix #4627 --- src/string.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'src') diff --git a/src/string.c b/src/string.c index 0abc07000..1d2f0dec0 100644 --- a/src/string.c +++ b/src/string.c @@ -1264,7 +1264,7 @@ str_replace_partial(mrb_state *mrb, mrb_value src, mrb_int pos, mrb_int end, mrb memmove(strp + newlen - (len - end), strp + end, len - end); if (!mrb_nil_p(rep)) { - memcpy(strp + pos, RSTRING_PTR(rep), replen); + memmove(strp + pos, RSTRING_PTR(rep), replen); } RSTR_SET_LEN(str, newlen); strp[newlen] = '\0'; -- cgit v1.2.3