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| author | Michael Niedermayer <michael@niedermayer.cc> | 2022-03-02 13:01:53 +0100 |
|---|---|---|
| committer | Michael Niedermayer <michael@niedermayer.cc> | 2022-04-13 23:39:50 +0200 |
| commit | b70429e33c7c33eda2f0cbcf8d9fa0752bcd3c22 (patch) | |
| tree | f09f0a09fa4c537f80d36c3c2693859c2068c06c | |
| parent | 77f3f2aaf9bbd58aad74b373ce2ace57fd9c18a8 (diff) | |
| download | ffmpeg-b70429e33c7c33eda2f0cbcf8d9fa0752bcd3c22.tar.gz | |
avformat/mov: Disallow empty sidx
It appears this is not allowed "Each Segment Index box documents how a (sub)segment is divided into one or more subsegments
(which may themselves be further subdivided using Segment Index boxes)."
Fixes: Null pointer dereference
Fixes: Ticket9517
Reviewed-by: Paul B Mahol <onemda@gmail.com>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit 4419433d77278cb742944c4514be5f72a04103c0)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
| -rw-r--r-- | libavformat/mov.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/libavformat/mov.c b/libavformat/mov.c index 78ec7e8f45..5bbc54493e 100644 --- a/libavformat/mov.c +++ b/libavformat/mov.c @@ -4586,7 +4586,7 @@ static int mov_read_sidx(MOVContext *c, AVIOContext *pb, MOVAtom atom) index->track_id = track_id; index->item_count = avio_rb16(pb); - index->items = av_mallocz_array(index->item_count, sizeof(MOVFragmentIndexItem)); + index->items = index->item_count ? av_mallocz_array(index->item_count, sizeof(MOVFragmentIndexItem)) : NULL; if (!index->items) { av_freep(&index); |