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avcodec/sonic: More completely check sample_rate_index and channels

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Fixes CID1271783

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
This commit is contained in:
Michael Niedermayer 2015-05-15 17:31:58 +02:00
parent c131a9fead
commit ade8a46154
1 changed files with 8 additions and 2 deletions
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10
libavcodec/sonic.c
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@ -883,13 +883,19 @@ static av_cold int sonic_decode_init(AVCodecContext *avctx)
if (s->version >= 1)
{
int sample_rate_index;
s->channels = get_bits(&gb, 2);
s->samplerate = samplerate_table[get_bits(&gb, 4)];
sample_rate_index = get_bits(&gb, 4);
if (sample_rate_index >= FF_ARRAY_ELEMS(samplerate_table)) {
av_log(avctx, AV_LOG_ERROR, "Invalid sample_rate_index %d\n", sample_rate_index);
return AVERROR_INVALIDDATA;
}
s->samplerate = samplerate_table[sample_rate_index];
av_log(avctx, AV_LOG_INFO, "Sonicv2 chans: %d samprate: %d\n",
s->channels, s->samplerate);
}
if (s->channels > MAX_CHANNELS)
if (s->channels > MAX_CHANNELS || s->channels < 1)
{
av_log(avctx, AV_LOG_ERROR, "Only mono and stereo streams are supported by now\n");
return AVERROR_INVALIDDATA;