FLAC__bool read_metadata_streaminfo_(FLAC__StreamDecoder *decoder, FLAC__bool is_last, unsigned length)
{
	FLAC__uint32 x;
 unsigned bits, used_bits = 0;

	FLAC__ASSERT(FLAC__bitreader_is_consumed_byte_aligned(decoder->private_->input));

	decoder->private_->stream_info.type = FLAC__METADATA_TYPE_STREAMINFO;
	decoder->private_->stream_info.is_last = is_last;
	decoder->private_->stream_info.length = length;

	bits = FLAC__STREAM_METADATA_STREAMINFO_MIN_BLOCK_SIZE_LEN;
 if(!FLAC__bitreader_read_raw_uint32(decoder->private_->input, &x, bits))
 return false; /* read_callback_ sets the state for us */
	decoder->private_->stream_info.data.stream_info.min_blocksize = x;
	used_bits += bits;

	bits = FLAC__STREAM_METADATA_STREAMINFO_MAX_BLOCK_SIZE_LEN;
 if(!FLAC__bitreader_read_raw_uint32(decoder->private_->input, &x, FLAC__STREAM_METADATA_STREAMINFO_MAX_BLOCK_SIZE_LEN))
 return false; /* read_callback_ sets the state for us */
	decoder->private_->stream_info.data.stream_info.max_blocksize = x;
	used_bits += bits;

	bits = FLAC__STREAM_METADATA_STREAMINFO_MIN_FRAME_SIZE_LEN;
 if(!FLAC__bitreader_read_raw_uint32(decoder->private_->input, &x, FLAC__STREAM_METADATA_STREAMINFO_MIN_FRAME_SIZE_LEN))
 return false; /* read_callback_ sets the state for us */
	decoder->private_->stream_info.data.stream_info.min_framesize = x;
	used_bits += bits;

	bits = FLAC__STREAM_METADATA_STREAMINFO_MAX_FRAME_SIZE_LEN;
 if(!FLAC__bitreader_read_raw_uint32(decoder->private_->input, &x, FLAC__STREAM_METADATA_STREAMINFO_MAX_FRAME_SIZE_LEN))
 return false; /* read_callback_ sets the state for us */
	decoder->private_->stream_info.data.stream_info.max_framesize = x;
	used_bits += bits;

	bits = FLAC__STREAM_METADATA_STREAMINFO_SAMPLE_RATE_LEN;
 if(!FLAC__bitreader_read_raw_uint32(decoder->private_->input, &x, FLAC__STREAM_METADATA_STREAMINFO_SAMPLE_RATE_LEN))
 return false; /* read_callback_ sets the state for us */
	decoder->private_->stream_info.data.stream_info.sample_rate = x;
	used_bits += bits;

	bits = FLAC__STREAM_METADATA_STREAMINFO_CHANNELS_LEN;
 if(!FLAC__bitreader_read_raw_uint32(decoder->private_->input, &x, FLAC__STREAM_METADATA_STREAMINFO_CHANNELS_LEN))
 return false; /* read_callback_ sets the state for us */
	decoder->private_->stream_info.data.stream_info.channels = x+1;
	used_bits += bits;

	bits = FLAC__STREAM_METADATA_STREAMINFO_BITS_PER_SAMPLE_LEN;
 if(!FLAC__bitreader_read_raw_uint32(decoder->private_->input, &x, FLAC__STREAM_METADATA_STREAMINFO_BITS_PER_SAMPLE_LEN))
 return false; /* read_callback_ sets the state for us */
	decoder->private_->stream_info.data.stream_info.bits_per_sample = x+1;
	used_bits += bits;

	bits = FLAC__STREAM_METADATA_STREAMINFO_TOTAL_SAMPLES_LEN;
 if(!FLAC__bitreader_read_raw_uint64(decoder->private_->input, &decoder->private_->stream_info.data.stream_info.total_samples, FLAC__STREAM_METADATA_STREAMINFO_TOTAL_SAMPLES_LEN))
 return false; /* read_callback_ sets the state for us */
	used_bits += bits;

 if(!FLAC__bitreader_read_byte_block_aligned_no_crc(decoder->private_->input, decoder->private_->stream_info.data.stream_info.md5sum, 16))
 return false; /* read_callback_ sets the state for us */
	used_bits += 16*8;

 /* skip the rest of the block */
	FLAC__ASSERT(used_bits % 8 == 0);
	length -= (used_bits / 8);
 if(!FLAC__bitreader_skip_byte_block_aligned_no_crc(decoder->private_->input, length))
 return false; /* read_callback_ sets the state for us */

 return true;
}

The product performs operations on a memory buffer, but it reads from or writes to a memory location outside the buffer's intended boundary. This may result in read or write operations on unexpected memory locations that could be linked to other variables, data structures, or internal program data.