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avformat/wavdec: Check for data_size overflow

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Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
This commit is contained in:
Michael Niedermayer 2015-07-29 13:34:50 +02:00
parent 13d605e090
commit f40ec70478
1 changed files with 5 additions and 0 deletions
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5
libavformat/wavdec.c
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@ -429,6 +429,11 @@ break_loop:
avio_seek(pb, data_ofs, SEEK_SET);
if (data_size > (INT64_MAX>>3)) {
av_log(s, AV_LOG_WARNING, "Data size %"PRId64" is too large\n", data_size);
data_size = 0;
}
if ( data_size > 0 && sample_count && st->codec->channels
&& (data_size << 3) / sample_count / st->codec->channels > st->codec->bits_per_coded_sample) {
av_log(s, AV_LOG_WARNING, "ignoring wrong sample_count %"PRId64"\n", sample_count);