From 5dc527f9cad2912069dcc9dc6c05bcf9bf05eb87 Mon Sep 17 00:00:00 2001 From: Zhong Li Date: Mon, 23 Dec 2019 14:14:09 +0000 Subject: [PATCH] lavc/midivid: check return value of init_get_bits8() Fix CID 1456088 Signed-off-by: Zhong Li --- libavcodec/midivid.c | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) diff --git a/libavcodec/midivid.c b/libavcodec/midivid.c index 38465c5fbc..bb5105bd57 100644 --- a/libavcodec/midivid.c +++ b/libavcodec/midivid.c @@ -63,7 +63,7 @@ static int decode_mvdv(MidiVidContext *s, AVCodecContext *avctx, AVFrame *frame) if (intra_flag) { nb_blocks = (avctx->width / 2) * (avctx->height / 2); } else { - int skip_linesize; + int ret, skip_linesize; nb_blocks = bytestream2_get_le32(gb); skip_linesize = avctx->width >> 1; @@ -73,7 +73,9 @@ static int decode_mvdv(MidiVidContext *s, AVCodecContext *avctx, AVFrame *frame) if (bytestream2_get_bytes_left(gb) < mask_size) return AVERROR_INVALIDDATA; - init_get_bits8(&mask, mask_start, mask_size); + ret = init_get_bits8(&mask, mask_start, mask_size); + if (ret < 0) + return ret; bytestream2_skip(gb, mask_size); skip = s->skip;