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authorMichael Niedermayer <michael@niedermayer.cc>2021-12-07 09:14:09 +0100
committerMichael Niedermayer <michael@niedermayer.cc>2022-04-13 23:39:50 +0200
commitfa922acc51660df7bbf46ade0d8eca87766200fd (patch)
tree19f4980b9805ad0c2d6fb066533539c9d39e09fc
parente1793ad68e8e71d3850b44be6ac72df06c3d7ae5 (diff)
downloadffmpeg-fa922acc51660df7bbf46ade0d8eca87766200fd.tar.gz
avformat/4xm: Check for duplicate track ids
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc> (cherry picked from commit dd949124793c722ed55dead9da245574ace81968) Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
-rw-r--r--libavformat/4xm.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/libavformat/4xm.c b/libavformat/4xm.c
index bce2727d79..fd224f9ad5 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);