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| author | Michael Niedermayer <michael@niedermayer.cc> | 2021-11-07 13:48:24 +0100 |
|---|---|---|
| committer | Michael Niedermayer <michael@niedermayer.cc> | 2022-04-06 20:27:35 +0200 |
| commit | 4ff9f77240106bd441359184f58e37ad74efa5c2 (patch) | |
| tree | af8ee4948e9e4fd80d88792359eac4be34e56f1c | |
| parent | d4ff904e3030584fe01650ac7fbe1f1a9c7295e7 (diff) | |
| download | ffmpeg-4ff9f77240106bd441359184f58e37ad74efa5c2.tar.gz | |
avformat/mov: Check channels for mov_parse_stsd_audio()
Fixes: signed integer overflow: -776522110086937600 * 16 cannot be represented in type 'long'
Fixes: 40563/clusterfuzz-testcase-minimized-ffmpeg_dem_MOV_fuzzer-6644829447127040
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 3a64a4c58255d45e05eff80c9464ad3bdc2d6463)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
| -rw-r--r-- | libavformat/mov.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/libavformat/mov.c b/libavformat/mov.c index 4af796ee31..c7c0e63f51 100644 --- a/libavformat/mov.c +++ b/libavformat/mov.c @@ -2551,6 +2551,10 @@ int ff_mov_read_stsd_entries(MOVContext *c, AVIOContext *pb, int entries) av_log(c->fc, AV_LOG_ERROR, "Invalid sample rate %d\n", st->codecpar->sample_rate); return AVERROR_INVALIDDATA; } + if (st->codecpar->channels < 0) { + av_log(c->fc, AV_LOG_ERROR, "Invalid channels %d\n", st->codecpar->channels); + return AVERROR_INVALIDDATA; + } } else if (st->codecpar->codec_type==AVMEDIA_TYPE_SUBTITLE){ mov_parse_stsd_subtitle(c, pb, st, sc, size - (avio_tell(pb) - start_pos)); |