[FFmpeg-cvslog] v410dec: Check for sufficient input data. Fixes crash

[Michael Niedermayer]

ffmpeg | branch: master | Michael Niedermayer <michaelni at gmx.at> | Wed Dec 28 15:04:44 2011 -0500| [8f5216905f88510c9a74cd91a424902aa989b9a1] | committer: Ronald S. Bultje

v410dec: Check for sufficient input data. Fixes crash

Signed-off-by: Michael Niedermayer <michaelni at gmx.at>
Signed-off-by: Ronald S. Bultje <rsbultje at gmail.com>

> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=8f5216905f88510c9a74cd91a424902aa989b9a1
---

 libavcodec/v410dec.c |    5 +++++
 1 files changed, 5 insertions(+), 0 deletions(-)

diff --git a/libavcodec/v410dec.c b/libavcodec/v410dec.c
index 71cbe0b..54c9595 100644
--- a/libavcodec/v410dec.c
+++ b/libavcodec/v410dec.c
@@ -55,6 +55,11 @@ static int v410_decode_frame(AVCodecContext *avctx, void *data,
     if (pic->data[0])
         avctx->release_buffer(avctx, pic);
 
+    if (avpkt->size < 4 * avctx->height * avctx->width) {
+        av_log(avctx, AV_LOG_ERROR, "Insufficient input data.\n");
+        return AVERROR(EINVAL);
+    }
+
     pic->reference = 0;
 
     if (avctx->get_buffer(avctx, pic) < 0) {