Signed-off-by: Michael Niedermayer <mich...@niedermayer.cc>
---
libavformat/4xm.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/libavformat/4xm.c b/libavformat/4xm.c
index 848991af5b8..e3075600142 100644
--- a/libavformat/4xm.c
+++ b/libavformat/4xm.c
@@ -149,6 +149,9 @@ static int parse_strk(AVFormatContext *s,
memset(&fourxm->tracks[fourxm->track_count], 0,
sizeof(AudioTrack) * (track + 1 - fourxm->track_count));
fourxm->track_count = track + 1;
+ } else {
+ if (fourxm->tracks[track].bits)
+ return AVERROR_INVALIDDATA;
}
fourxm->tracks[track].adpcm = AV_RL32(buf + 12);
fourxm->tracks[track].channels = AV_RL32(buf + 36);
--
2.17.1
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