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| author | Michael Niedermayer <michael@niedermayer.cc> | 2025-05-10 23:39:53 +0200 |
|---|---|---|
| committer | Michael Niedermayer <michael@niedermayer.cc> | 2025-05-15 03:03:55 +0200 |
| commit | 9fc2702f6f502064d0d2d75c97ece33f4b56eb84 (patch) | |
| tree | 38c95a1d59da1901c37b20980347c5f363ec65a7 | |
| parent | 76e29bb8bfe7c5a29fead7a175aff3e3f505fd0a (diff) | |
| download | ffmpeg-9fc2702f6f502064d0d2d75c97ece33f4b56eb84.tar.gz | |
avformat/mov: reject negative ELST durations
Fixes: multiple integer overflows
Fixes: 401016767/clusterfuzz-testcase-minimized-ffmpeg_dem_MOV_fuzzer-6242067591790592
Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
| -rw-r--r-- | libavformat/mov.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/libavformat/mov.c b/libavformat/mov.c index cb81b6c4da..8a094b1ea0 100644 --- a/libavformat/mov.c +++ b/libavformat/mov.c @@ -6295,6 +6295,11 @@ static int mov_read_elst(MOVContext *c, AVIOContext *pb, MOVAtom atom) c->fc->nb_streams-1, i, e->time); return AVERROR_INVALIDDATA; } + if (e->duration < 0) { + av_log(c->fc, AV_LOG_ERROR, "Track %d, edit %d: Invalid edit list duration=%"PRId64"\n", + c->fc->nb_streams-1, i, e->duration); + return AVERROR_INVALIDDATA; + } } sc->elst_count = i; |