[FFmpeg-cvslog] mxfdec: Fix potential leak in mxf_read_local_tags()

[Tomas Härdin]

ffmpeg | branch: master | Tomas Härdin <tomas.hardin at codemill.se> | Wed Oct 24 16:54:25 2012 +0200| [fbb39f44f1d37451be7d575b5923e6d5851aaecc] | committer: Michael Niedermayer

mxfdec: Fix potential leak in mxf_read_local_tags()

This fixes CID 733800.

Signed-off-by: Michael Niedermayer <michaelni at gmx.at>

> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=fbb39f44f1d37451be7d575b5923e6d5851aaecc
---

 libavformat/mxfdec.c |    3 +++
 1 file changed, 3 insertions(+)

diff --git a/libavformat/mxfdec.c b/libavformat/mxfdec.c
index d4ab49f..5fca1a8 100644
--- a/libavformat/mxfdec.c
+++ b/libavformat/mxfdec.c
@@ -1646,6 +1646,9 @@ static int mxf_read_local_tags(MXFContext *mxf, KLVPacket *klv, MXFMetadataReadF
         /* Accept the 64k local set limit being exceeded (Avid). Don't accept
          * it extending past the end of the KLV though (zzuf5.mxf). */
         if (avio_tell(pb) > klv_end) {
+            if (ctx_size)
+                av_free(ctx);
+
             av_log(mxf->fc, AV_LOG_ERROR,
                    "local tag %#04x extends past end of local set @ %#"PRIx64"\n",
                    tag, klv->offset);