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| author | Michael Niedermayer <michael@niedermayer.cc> | 2022-03-02 13:01:53 +0100 |
|---|---|---|
| committer | Michael Niedermayer <michael@niedermayer.cc> | 2022-03-28 22:40:45 +0200 |
| commit | 81e99640d5e7ba09576ce8cf40de180b946550d6 (patch) | |
| tree | 82df03ee88669b98b2b487802837a0c1251075b7 | |
| parent | 97a21e9373f2b9ddd6f66adbcd2b31848ab8fab8 (diff) | |
| download | ffmpeg-81e99640d5e7ba09576ce8cf40de180b946550d6.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 94b2c079e3..e225dde84b 100644 --- a/libavformat/mov.c +++ b/libavformat/mov.c @@ -3698,7 +3698,7 @@ 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); |