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-rw-r--r--libavcodec/wavpack.c5
1 files changed, 5 insertions, 0 deletions
diff --git a/libavcodec/wavpack.c b/libavcodec/wavpack.c
index 9c766ca181..7a14519bf9 100644
--- a/libavcodec/wavpack.c
+++ b/libavcodec/wavpack.c
@@ -1120,6 +1120,11 @@ static int wavpack_decode_block(AVCodecContext *avctx, int block_no,
}
}
+ if (wc->ch_offset + s->stereo >= avctx->channels) {
+ av_log(avctx, AV_LOG_WARNING, "Too many channels coded in a packet.\n");
+ return (avctx->err_recognition & AV_EF_EXPLODE) ? AVERROR_INVALIDDATA : 0;
+ }
+
samples_l = frame->extended_data[wc->ch_offset];
if (s->stereo)
samples_r = frame->extended_data[wc->ch_offset + 1];