mp3on4: fix null pointer dereference

Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
This commit is contained in:
Michael Niedermayer 2012-12-14 21:50:23 +01:00
parent a99c273a3f
commit 51fcf276f8

View File

@ -1965,7 +1965,7 @@ static int decode_frame_mp3on4(AVCodecContext *avctx, void *data,
avpriv_mpegaudio_decode_header((MPADecodeHeader *)m, header); avpriv_mpegaudio_decode_header((MPADecodeHeader *)m, header);
if (ch + m->nb_channels > avctx->channels) { if (ch + m->nb_channels > avctx->channels || s->coff[fr] + m->nb_channels > avctx->channels) {
av_log(avctx, AV_LOG_ERROR, "frame channel count exceeds codec " av_log(avctx, AV_LOG_ERROR, "frame channel count exceeds codec "
"channel count\n"); "channel count\n");
return AVERROR_INVALIDDATA; return AVERROR_INVALIDDATA;