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| author | Michael Niedermayer <michael@niedermayer.cc> | 2021-12-03 17:42:22 +0100 |
|---|---|---|
| committer | Michael Niedermayer <michael@niedermayer.cc> | 2022-04-13 23:39:50 +0200 |
| commit | b60f4ff5dd7ca6e41fb660b6a9593a6446d514f5 (patch) | |
| tree | c716ffdd6d401fa714411ea26315fa0b97b0d383 | |
| parent | c63fed42930e40b08034c7b0db1139d2739771a8 (diff) | |
| download | ffmpeg-b60f4ff5dd7ca6e41fb660b6a9593a6446d514f5.tar.gz | |
avformat/mov: Disallow duplicate smdm
Fixes: memleak
Fixes: 39879/clusterfuzz-testcase-minimized-ffmpeg_dem_MOV_fuzzer-5327819907923968
Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit b5ba74053c1ef9f38d9e7b3a036675f06d2b2714)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
| -rw-r--r-- | libavformat/mov.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/libavformat/mov.c b/libavformat/mov.c index aeb3cbbc7e..a4eb4751c3 100644 --- a/libavformat/mov.c +++ b/libavformat/mov.c @@ -4847,6 +4847,9 @@ static int mov_read_smdm(MOVContext *c, AVIOContext *pb, MOVAtom atom) av_log(c->fc, AV_LOG_WARNING, "Unsupported Mastering Display Metadata box version %d\n", version); return 0; } + if (sc->mastering) + return AVERROR_INVALIDDATA; + avio_skip(pb, 3); /* flags */ sc->mastering = av_mastering_display_metadata_alloc(); |