From bbf43c70dd43482a94aef3ebcb767830069bd1c0 Mon Sep 17 00:00:00 2001
From: Michael Niedermayer <michaelni@gmx.at>
Date: Mon, 3 Jun 2013 14:37:16 +0200
Subject: [PATCH] jpeg2000dec: assert that curtileno is valid when used

Fixes CID1026755
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
---
 libavcodec/jpeg2000dec.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/libavcodec/jpeg2000dec.c b/libavcodec/jpeg2000dec.c
index 5c8db96b59..c7519c12d8 100644
--- a/libavcodec/jpeg2000dec.c
+++ b/libavcodec/jpeg2000dec.c
@@ -25,6 +25,7 @@
  * JPEG 2000 image decoder
  */
 
+#include "libavutil/avassert.h"
 #include "libavutil/common.h"
 #include "libavutil/opt.h"
 #include "avcodec.h"
@@ -1230,6 +1231,7 @@ static int jpeg2000_read_main_headers(Jpeg2000DecoderContext *s)
             break;
         case JPEG2000_SOT:
             if (!(ret = get_sot(s, len))) {
+                av_assert1(s->curtileno >= 0);
                 codsty = s->tile[s->curtileno].codsty;
                 qntsty = s->tile[s->curtileno].qntsty;
                 properties = s->tile[s->curtileno].properties;