mirror of https://git.ffmpeg.org/ffmpeg.git
avformat/rpl: Use 64bit in bitrate computation and check it
Fixes: signed integer overflow: 777777776 * 4 cannot be represented in type 'int'
Fixes: 29102/clusterfuzz-testcase-minimized-ffmpeg_dem_RPL_fuzzer-6726188921913344
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 29b244ffc1
)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
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@ -199,8 +199,10 @@ static int rpl_read_header(AVFormatContext *s)
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ast->codecpar->bits_per_coded_sample = 4;
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ast->codecpar->bit_rate = ast->codecpar->sample_rate *
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ast->codecpar->bits_per_coded_sample *
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ast->codecpar->channels;
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(int64_t)ast->codecpar->channels;
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if (ast->codecpar->bit_rate > INT64_MAX / ast->codecpar->bits_per_coded_sample)
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return AVERROR_INVALIDDATA;
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ast->codecpar->bit_rate *= ast->codecpar->bits_per_coded_sample;
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ast->codecpar->codec_id = AV_CODEC_ID_NONE;
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switch (audio_format) {
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