$OpenBSD: patch-IMG_gif_c,v 1.1 2008/03/31 21:19:17 jasper Exp $
--- IMG_gif.c.orig	Fri Mar 28 18:36:08 2008
+++ IMG_gif.c	Fri Mar 28 18:36:54 2008
@@ -406,6 +406,10 @@ LWZReadByte(SDL_RWops *src, int flag, int input_code_s
     static int stack[(1 << (MAX_LWZ_BITS)) * 2], *sp;
     register int i;
 
+    /* Fixed buffer overflow found by Michael Skladnikiewicz */
+    if (input_code_size > MAX_LWZ_BITS)
+        return -1;
+
     if (flag) {
 	set_code_size = input_code_size;
 	code_size = set_code_size + 1;