From e10aa8549aa6a48af847c1768705ab869c6fcdb6 Mon Sep 17 00:00:00 2001
From: Jeroen Ooms <jeroenooms@gmail.com>
Date: Sat, 30 May 2015 13:42:23 +0200
Subject: Fix for UBSAN note

---
 src/chunk.h | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

(limited to 'src/chunk.h')

diff --git a/src/chunk.h b/src/chunk.h
index 3d6743c..4bb4980 100644
--- a/src/chunk.h
+++ b/src/chunk.h
@@ -66,7 +66,9 @@ static inline const char *cmark_chunk_to_cstr(cmark_chunk *c)
 	}
 	str = (unsigned char *)malloc(c->len + 1);
 	if(str != NULL) {
-		memcpy(str, c->data, c->len);
+		if(c->len > 0){
+			memcpy(str, c->data, c->len);			
+		}
 		str[c->len] = 0;
 	}
 	c->data  = str;
-- 
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