diff --git a/3rdparty/ffmpeg/libavformat/asfdec_o.c b/3rdparty/ffmpeg/libavformat/asfdec_o.c
index 2320c661..1967bd11 100644
--- a/3rdparty/ffmpeg/libavformat/asfdec_o.c
+++ b/3rdparty/ffmpeg/libavformat/asfdec_o.c
@@ -703,7 +703,8 @@ static int parse_video_info(AVIOContext *pb, AVStream *st)
     st->codec->codec_tag = tag;
     st->codec->codec_id  = ff_codec_get_id(ff_codec_bmp_tags, tag);
 
-    if (size > BMP_HEADER_SIZE) {
+    if (size > BMP_HEADER_SIZE &&
+        size < INT_MAX - AV_INPUT_BUFFER_PADDING_SIZE) {
         int ret;
         st->codec->extradata_size  = size - BMP_HEADER_SIZE;
         if (!(st->codec->extradata = av_malloc(st->codec->extradata_size +