int aacDecoder_drcProlog (
        HANDLE_AAC_DRC  self,
        HANDLE_FDK_BITSTREAM hBs,
 CAacDecoderStaticChannelInfo *pAacDecoderStaticChannelInfo[],
        UCHAR  pceInstanceTag,
        UCHAR  channelMapping[], /* Channel mapping translating drcChannel index to canonical channel index */
 int    validChannels )
{
 int err = 0;

 if (self == NULL) {
 return -1;
 }

 if (!self->params.bsDelayEnable)
 {
    err = aacDecoder_drcExtractAndMap (
            self,
            hBs,
            pAacDecoderStaticChannelInfo,
            pceInstanceTag,
            channelMapping,
            validChannels );
 }

 return err;
}

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.