diff --git a/libavcodec/fic.c b/libavcodec/fic.c
index 8c4c4814db..d94b1dba64 100644
--- a/libavcodec/fic.c
+++ b/libavcodec/fic.c
@@ -138,6 +138,9 @@ static int fic_decode_block(FICContext *ctx, GetBitContext *gb,
 {
     int i, num_coeff;
 
+    if (get_bits_left(gb) < 8)
+        return AVERROR_INVALIDDATA;
+
     /* Is it a skip block? */
     if (get_bits1(gb)) {
         /* This is a P-frame. */