[SCM] libav/experimental: TTA : Check if the output buffer size is within bounds.

[siretart at users.alioth.debian.org]

The following commit has been merged in the experimental branch:
commit bac6ed4aebb5f25012b3b6293dab7df2767f8401
Author: Jai Menon <jmenon86 at gmail.com>
Date:   Sun Mar 28 17:17:48 2010 +0000

    TTA : Check if the output buffer size is within bounds.
    
    Fixes issue 1848.
    
    Originally committed as revision 22711 to svn://svn.ffmpeg.org/ffmpeg/trunk

diff --git a/libavcodec/tta.c b/libavcodec/tta.c
index 7dd4cc5..61ac287 100644
--- a/libavcodec/tta.c
+++ b/libavcodec/tta.c
@@ -302,6 +302,10 @@ static int tta_decode_frame(AVCodecContext *avctx,
         int cur_chan = 0, framelen = s->frame_length;
         int32_t *p;
 
+        if (*data_size < (framelen * s->channels * 2)) {
+            av_log(avctx, AV_LOG_ERROR,"Output buffer size is too small.\n");
+            return -1;
+        }
         // FIXME: seeking
         s->total_frames--;
         if (!s->total_frames && s->last_frame_length)

-- 
Libav/FFmpeg packaging