From abad374909e6416e941351094f4f1446a71f8d23 Mon Sep 17 00:00:00 2001
From: Luca Barbato <lu_zero@gentoo.org>
Date: Fri, 17 May 2013 13:08:55 +0200
Subject: [PATCH 1/2] jpegls: check the scan offset

Prevent an out of array bound write.

Reported-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
CC: libav-stable@libav.org
---
 libavcodec/jpeglsdec.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/libavcodec/jpeglsdec.c b/libavcodec/jpeglsdec.c
index 3616063bf1..df72ca338f 100644
--- a/libavcodec/jpeglsdec.c
+++ b/libavcodec/jpeglsdec.c
@@ -306,6 +306,10 @@ int ff_jpegls_decode_picture(MJpegDecodeContext *s, int near,
     av_dlog(s->avctx, "JPEG params: ILV=%i Pt=%i BPP=%i, scan = %i\n",
             ilv, point_transform, s->bits, s->cur_scan);
     if (ilv == 0) { /* separate planes */
+        if (s->cur_scan > s->nb_components) {
+            ret = AVERROR_INVALIDDATA;
+            goto end;
+        }
         off    = s->cur_scan - 1;
         stride = (s->nb_components > 1) ? 3 : 1;
         width  = s->width * stride;

From bc8c1cdc7bfe7b1fe56df812aabdac3de2555cec Mon Sep 17 00:00:00 2001
From: Anton Khirnov <anton@khirnov.net>
Date: Wed, 11 Apr 2012 08:31:10 +0200
Subject: [PATCH 2/2] lavfi doxy: add a page for lavfi.

---
 libavfilter/avfilter.h | 15 +++++++++++++++
 libavfilter/version.h  |  1 +
 libavutil/avutil.h     |  2 +-
 3 files changed, 17 insertions(+), 1 deletion(-)

diff --git a/libavfilter/avfilter.h b/libavfilter/avfilter.h
index 51d0fb5148..9baf64e941 100644
--- a/libavfilter/avfilter.h
+++ b/libavfilter/avfilter.h
@@ -22,6 +22,17 @@
 #ifndef AVFILTER_AVFILTER_H
 #define AVFILTER_AVFILTER_H
 
+/**
+ * @file
+ * @ingroup lavfi
+ * Main libavfilter public API header
+ */
+
+/**
+ * @defgroup lavfi Libavfilter - graph-based frame editing library
+ * @{
+ */
+
 #include "libavutil/avutil.h"
 #include "libavutil/frame.h"
 #include "libavutil/log.h"
@@ -960,4 +971,8 @@ int avfilter_graph_parse2(AVFilterGraph *graph, const char *filters,
                           AVFilterInOut **inputs,
                           AVFilterInOut **outputs);
 
+/**
+ * @}
+ */
+
 #endif /* AVFILTER_AVFILTER_H */
diff --git a/libavfilter/version.h b/libavfilter/version.h
index e8dc87546f..c8e968996f 100644
--- a/libavfilter/version.h
+++ b/libavfilter/version.h
@@ -23,6 +23,7 @@
 
 /**
  * @file
+ * @ingroup lavfi
  * Libavfilter version macros
  */
 
diff --git a/libavutil/avutil.h b/libavutil/avutil.h
index 33f9bea723..5ed33a9777 100644
--- a/libavutil/avutil.h
+++ b/libavutil/avutil.h
@@ -35,7 +35,7 @@
  * provided by Libav.
  *
  * @li @ref libavc "libavcodec" encoding/decoding library
- * @li @subpage libavfilter graph based frame editing library
+ * @li @ref lavfi "libavfilter" graph-based frame editing library
  * @li @ref libavf "libavformat" I/O and muxing/demuxing library
  * @li @ref lavd "libavdevice" special devices muxing/demuxing library
  * @li @ref lavu "libavutil" common utility library