Signed-off-by: Zhong Li <zhongli_...@126.com> --- libavcodec/midivid.c | 9 ++++++--- 1 file changed, 6 insertions(+), 3 deletions(-)
diff --git a/libavcodec/midivid.c b/libavcodec/midivid.c index 38465c5..3dac3f1 100644 --- a/libavcodec/midivid.c +++ b/libavcodec/midivid.c @@ -63,17 +63,20 @@ 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; mask_start = gb->buffer_start + bytestream2_tell(gb); mask_size = (avctx->width >> 5) * (avctx->height >> 2); - if (bytestream2_get_bytes_left(gb) < mask_size) + ret = bytestream2_get_bytes_left(gb); + if (ret < 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 AVERROR_INVALIDDATA; bytestream2_skip(gb, mask_size); skip = s->skip; -- 1.8.3.1 _______________________________________________ ffmpeg-devel mailing list ffmpeg-devel@ffmpeg.org https://ffmpeg.org/mailman/listinfo/ffmpeg-devel To unsubscribe, visit link above, or email ffmpeg-devel-requ...@ffmpeg.org with subject "unsubscribe".