int ff_mp4_read_dec_config_descr(AVFormatContext *fc, AVStream *st, AVIOContext *pb)
{
int len, tag;
+ int ret;
int object_type_id = avio_r8(pb);
avio_r8(pb); /* stream type */
avio_rb24(pb); /* buffer size db */
av_free(st->codec->extradata);
if (ff_alloc_extradata(st->codec, len))
return AVERROR(ENOMEM);
- avio_read(pb, st->codec->extradata, len);
+ if ((ret = avio_read(pb, st->codec->extradata, len)) != len)
+ return ret < 0 ? ret : AVERROR_INVALIDDATA;
if (st->codec->codec_id == AV_CODEC_ID_AAC) {
MPEG4AudioConfig cfg = {0};
avpriv_mpeg4audio_get_config(&cfg, st->codec->extradata,