diff options
Diffstat (limited to 'chromium/third_party/ffmpeg/libavcodec/pngdec.c')
| -rw-r--r-- | chromium/third_party/ffmpeg/libavcodec/pngdec.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/chromium/third_party/ffmpeg/libavcodec/pngdec.c b/chromium/third_party/ffmpeg/libavcodec/pngdec.c index 6a681be29d7..5209e342db5 100644 --- a/chromium/third_party/ffmpeg/libavcodec/pngdec.c +++ b/chromium/third_party/ffmpeg/libavcodec/pngdec.c @@ -1535,12 +1535,17 @@ static int decode_frame_lscr(AVCodecContext *avctx, AVFrame *frame = data; int ret, nb_blocks, offset = 0; + if (avpkt->size < 2) + return AVERROR_INVALIDDATA; + bytestream2_init(gb, avpkt->data, avpkt->size); if ((ret = ff_get_buffer(avctx, frame, AV_GET_BUFFER_FLAG_REF)) < 0) return ret; nb_blocks = bytestream2_get_le16(gb); + if (bytestream2_get_bytes_left(gb) < 2 + nb_blocks * 12) + return AVERROR_INVALIDDATA; if (s->last_picture.f->data[0]) { ret = av_frame_copy(frame, s->last_picture.f); |