diff --git a/contrib/sdk/sources/ffmpeg/ffmpeg-2.8/libavformat/cinedec.c b/contrib/sdk/sources/ffmpeg/ffmpeg-2.8/libavformat/cinedec.c
index 632f46c45..1497842cf 100644
--- a/contrib/sdk/sources/ffmpeg/ffmpeg-2.8/libavformat/cinedec.c
+++ b/contrib/sdk/sources/ffmpeg/ffmpeg-2.8/libavformat/cinedec.c
@@ -267,8 +267,12 @@ static int cine_read_header(AVFormatContext *avctx)
 
     /* parse image offsets */
     avio_seek(pb, offImageOffsets, SEEK_SET);
-    for (i = 0; i < st->duration; i++)
+    for (i = 0; i < st->duration; i++) {
+        if (avio_feof(pb))
+            return AVERROR_INVALIDDATA;
+
         av_add_index_entry(st, avio_rl64(pb), i, 0, 0, AVINDEX_KEYFRAME);
+    }
 
     return 0;
 }