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| author | Michael Niedermayer <michael@niedermayer.cc> | 2021-12-03 17:42:22 +0100 |
|---|---|---|
| committer | Michael Niedermayer <michael@niedermayer.cc> | 2021-12-06 14:25:55 +0100 |
| commit | b5ba74053c1ef9f38d9e7b3a036675f06d2b2714 (patch) | |
| tree | f13290ffd1ebb9603517abd7c52d8b78749bbf50 /libavformat | |
| parent | 51d5e90158971940ff18ec8b10934edd430c6eaa (diff) | |
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>
Diffstat (limited to 'libavformat')
| -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 bf9e58197b..ff5a55d0e6 100644 --- a/libavformat/mov.c +++ b/libavformat/mov.c @@ -5407,6 +5407,9 @@ 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(); |