diff --git a/libavcodec/h264.c b/libavcodec/h264.c
index 3ea6133..c8b561d 100644
--- a/libavcodec/h264.c
+++ b/libavcodec/h264.c
@@ -7131,8 +7131,12 @@
 
     if(sps->profile_idc >= 100){ //high profile
         sps->chroma_format_idc= get_ue_golomb_31(&s->gb);
-        if(sps->chroma_format_idc == 3)
+        if(sps->chroma_format_idc > 3) {
+            av_log(h->s.avctx, AV_LOG_ERROR, "chroma_format_idc (%u) out of range\n", sps->chroma_format_idc);
+            return -1;
+        } else if(sps->chroma_format_idc == 3) {
             sps->residual_color_transform_flag = get_bits1(&s->gb);
+        }
         sps->bit_depth_luma   = get_ue_golomb(&s->gb) + 8;
         sps->bit_depth_chroma = get_ue_golomb(&s->gb) + 8;
         sps->transform_bypass = get_bits1(&s->gb);