diff --git a/drivers/staging/media/sunxi/cedrus/cedrus.c b/drivers/staging/media/sunxi/cedrus/cedrus.c
index 6600245dff0e..d68da1eaa7aa 100644
--- a/drivers/staging/media/sunxi/cedrus/cedrus.c
+++ b/drivers/staging/media/sunxi/cedrus/cedrus.c
@@ -77,6 +77,28 @@ static int cedrus_try_ctrl(struct v4l2_ctrl *ctrl)
 			ctx->bit_depth = bit_depth;
 			cedrus_reset_cap_format(ctx);
 		}
+	} else if (ctrl->id == V4L2_CID_STATELESS_HEVC_SLICE_PARAMS) {
+		const struct v4l2_ctrl_hevc_slice_params *slice = ctrl->p_new.p_hevc_slice_params;
+		unsigned int i;
+
+		if (slice->num_ref_idx_l0_active_minus1 >=
+		    V4L2_HEVC_DPB_ENTRIES_NUM_MAX)
+			return -EINVAL;
+
+		for (i = 0; i <= slice->num_ref_idx_l0_active_minus1; i++)
+			if (slice->ref_idx_l0[i] >= V4L2_HEVC_DPB_ENTRIES_NUM_MAX)
+				return -EINVAL;
+
+		if (slice->slice_type == V4L2_HEVC_SLICE_TYPE_B) {
+			if (slice->num_ref_idx_l1_active_minus1 >=
+			    V4L2_HEVC_DPB_ENTRIES_NUM_MAX)
+				return -EINVAL;
+
+			for (i = 0; i <= slice->num_ref_idx_l1_active_minus1; i++)
+				if (slice->ref_idx_l1[i] >=
+				    V4L2_HEVC_DPB_ENTRIES_NUM_MAX)
+					return -EINVAL;
+		}
 	}
 
 	return 0;