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oggspeexparse: fix array overread 

Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
This commit is contained in:
Michael Niedermayer 2012-12-12 11:20:55 +01:00
parent 12fcc626d6
commit a0f659b275
1 changed files with 5 additions and 0 deletions
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5
libavformat/oggparsespeex.c
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@ -58,6 +58,11 @@ static int speex_header(AVFormatContext *s, int idx) {
st->codec->codec_type = AVMEDIA_TYPE_AUDIO;
st->codec->codec_id = AV_CODEC_ID_SPEEX;
if (os->psize < 68) {
av_log(s, AV_LOG_ERROR, "speex packet too small\n");
return AVERROR_INVALIDDATA;
}
st->codec->sample_rate = AV_RL32(p + 36);
st->codec->channels = AV_RL32(p + 48);
if (st->codec->channels < 1 || st->codec->channels > 2) {