[FFmpeg-cvslog] avformat/movenc: Check that frame_types other than EAC3_FRAME_TYPE_INDEPENDENT have a supported substream id

[Michael Niedermayer]

ffmpeg | branch: release/3.3 | Michael Niedermayer <michael at niedermayer.cc> | Wed Jun 27 16:51:51 2018 +0200| [78b1fbca3404459dcf8a1c34b5c7f9a5825ad61f] | committer: Michael Niedermayer

avformat/movenc: Check that frame_types other than EAC3_FRAME_TYPE_INDEPENDENT have a supported substream id

Fixes: out of array access
Fixes: ffmpeg_bof_1.avi

Found-by: Thuan Pham, Marcel Böhme, Andrew Santosa and Alexandru Razvan Caciulescu with AFLSmart
Signed-off-by: Michael Niedermayer <michael at niedermayer.cc>
(cherry picked from commit ed22dc22216f74c75ee7901f82649e1ff725ba50)
Signed-off-by: Michael Niedermayer <michael at niedermayer.cc>

> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=78b1fbca3404459dcf8a1c34b5c7f9a5825ad61f
---

 libavformat/movenc.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/libavformat/movenc.c b/libavformat/movenc.c
index 4b1ffff10f..11d58274fd 100644
--- a/libavformat/movenc.c
+++ b/libavformat/movenc.c
@@ -385,6 +385,11 @@ static int handle_eac3(MOVMuxContext *mov, AVPacket *pkt, MOVTrack *track)
                 info->ec3_done = 1;
                 goto concatenate;
             }
+        } else {
+            if (hdr->substreamid != 0) {
+                avpriv_request_sample(mov->fc, "Multiple non EAC3 independent substreams");
+                return AVERROR_PATCHWELCOME;
+            }
         }
 
         /* fill the info needed for the "dec3" atom */