From 9a8610c9715e714e40ad7a93be89985fe5371907 Mon Sep 17 00:00:00 2001 From: John MacFarlane Date: Wed, 22 Jun 2016 22:18:24 -0700 Subject: cmark_reference_lookup: Return NULL if reference is null string. --- src/references.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'src') diff --git a/src/references.c b/src/references.c index 6d31142..348de14 100755 --- a/src/references.c +++ b/src/references.c @@ -95,7 +95,7 @@ cmark_reference *cmark_reference_lookup(cmark_reference_map *map, unsigned char *norm; unsigned int hash; - if (label->len > MAX_LINK_LABEL_LENGTH) + if (label->len < 1 || label->len > MAX_LINK_LABEL_LENGTH) return NULL; if (map == NULL) -- cgit v1.2.3