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hughdavenport/mb_match_at_heap.patch Secret

Created December 30, 2018 21:41
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mb_match_at_heap.patch
diff --git a/ext/mbstring/oniguruma/regcomp.c b/ext/mbstring/oniguruma/regcomp.c
index b93ca948a7..18de3b81d8 100644
--- a/ext/mbstring/oniguruma/regcomp.c
+++ b/ext/mbstring/oniguruma/regcomp.c
@@ -476,6 +476,7 @@ compile_length_string_node(Node* node, regex_t* reg)
for (; p < sn->end; ) {
len = enclen(enc, p);
+ if (p + len > sn->end) len = sn->end - p;
if (len == prev_len) {
slen++;
}
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