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avformat/iff: Check block align also for ID_MAUD

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Fixes: Timeout & OOM
Fixes: 28701/clusterfuzz-testcase-minimized-ffmpeg_dem_IFF_fuzzer-5185094964871168
Fixes: 29116/clusterfuzz-testcase-minimized-ffmpeg_dem_IFF_fuzzer-4874284795297792

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 b17ffe8f8f30ba03901bcf7caa6c523e874e8fde)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
This commit is contained in:
Michael Niedermayer 2021-01-02 00:58:42 +01:00
parent 7fcac5c8c3
commit aa63110c1d
1 changed files with 1 additions and 1 deletions
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2
libavformat/iff.c
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@ -760,7 +760,7 @@ static int iff_read_header(AVFormatContext *s)
st->codecpar->bits_per_coded_sample = av_get_bits_per_sample(st->codecpar->codec_id);
st->codecpar->bit_rate = (int64_t)st->codecpar->channels * st->codecpar->sample_rate * st->codecpar->bits_per_coded_sample;
st->codecpar->block_align = st->codecpar->channels * st->codecpar->bits_per_coded_sample;
if (st->codecpar->codec_tag == ID_DSD && st->codecpar->block_align <= 0)
if ((st->codecpar->codec_tag == ID_DSD || st->codecpar->codec_tag == ID_MAUD) && st->codecpar->block_align <= 0)
return AVERROR_INVALIDDATA;
break;