[FFmpeg-cvslog] smacker: pad the extradata allocation

[Kostya Shishkov]

ffmpeg | branch: release/0.10 | Kostya Shishkov <kostya.shishkov at gmail.com> | Wed Jun 12 14:28:07 2013 +0200| [db0c8061fe540bbd72146cc0c9105e30d54d7f61] | committer: Reinhard Tartler

smacker: pad the extradata allocation

Reported-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
CC: libav-stable at libav.org

Signed-off-by: Luca Barbato <lu_zero at gentoo.org>
(cherry picked from commit 4c22baf65363433f8c20efd1022b4ba2d8cf2288)

Signed-off-by: Luca Barbato <lu_zero at gentoo.org>

> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=db0c8061fe540bbd72146cc0c9105e30d54d7f61
---

 libavformat/smacker.c |    3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/libavformat/smacker.c b/libavformat/smacker.c
index 6df8b8b..e7c89e0 100644
--- a/libavformat/smacker.c
+++ b/libavformat/smacker.c
@@ -203,7 +203,8 @@ static int smacker_read_header(AVFormatContext *s, AVFormatParameters *ap)
 
 
     /* load trees to extradata, they will be unpacked by decoder */
-    st->codec->extradata = av_malloc(smk->treesize + 16);
+    st->codec->extradata = av_mallocz(smk->treesize + 16 +
+                                      FF_INPUT_BUFFER_PADDING_SIZE);
     st->codec->extradata_size = smk->treesize + 16;
     if(!st->codec->extradata){
         av_log(s, AV_LOG_ERROR, "Cannot allocate %i bytes of extradata\n", smk->treesize + 16);