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nellymoserdec: fail if output buffer is too small 

avoids silently truncating the output
This commit is contained in:
Justin Ruggles 2011-10-17 10:22:46 -04:00
parent f19305fe93
commit 0aaa85dbed
1 changed files with 5 additions and 1 deletions
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6
libavcodec/nellymoserdec.c
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@ -176,8 +176,12 @@ static int decode_tag(AVCodecContext * avctx,
return buf_size;
}
block_size = NELLY_SAMPLES * av_get_bytes_per_sample(avctx->sample_fmt);
blocks = FFMIN(buf_size / NELLY_BLOCK_LEN, *data_size / block_size);
blocks = buf_size / NELLY_BLOCK_LEN;
if (blocks <= 0) {
av_log(avctx, AV_LOG_ERROR, "Packet is too small\n");
return AVERROR_INVALIDDATA;
}
if (*data_size < blocks * block_size) {
av_log(avctx, AV_LOG_ERROR, "Output buffer is too small\n");
return AVERROR(EINVAL);
}