diff --git a/libavformat/cinedec.c b/libavformat/cinedec.c
index d27ebbba7b..0f2453cdf5 100644
--- a/libavformat/cinedec.c
+++ b/libavformat/cinedec.c
@@ -168,6 +168,10 @@ static int cine_read_header(AVFormatContext *avctx)
     avio_skip(pb, 616); // Binning .. bFlipH
     if (!avio_rl32(pb) ^ vflip) {
         st->codecpar->extradata  = av_strdup("BottomUp");
+        if (!st->codecpar->extradata) {
+            st->codecpar->extradata_size = 0;
+            return AVERROR(ENOMEM);
+        }
         st->codecpar->extradata_size  = 9;
     }