From 68fdae09c3691fc466e16852f9a6cb0a51dd3db3 Mon Sep 17 00:00:00 2001
From: Robin Stuart <rstuart114@gmail.com>
Date: Fri, 6 Apr 2018 10:50:19 +0100
Subject: [PATCH] Prevent possible buffer overrun

Spotted by Milton Neal
---
 backend/mailmark.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/backend/mailmark.c b/backend/mailmark.c
index 2d805664..25a91ecb 100644
--- a/backend/mailmark.c
+++ b/backend/mailmark.c
@@ -138,7 +138,7 @@ int mailmark(struct zint_symbol *symbol, unsigned char source[], int length) {
     short int b[112];
     short int temp[112];
     short int cdv[112];
-    unsigned char data[25];
+    unsigned char data[26];
     int data_top, data_step;
     unsigned char check[7];
     short int extender[27];