diff --git a/image_recover_tool/image-check/image/image.go b/image_recover_tool/image-check/image/image.go
index fdabac43656867516039e9a6d5f55fd085e8fc8b..262f77822cdb17685d427cac73088475115bf126 100644
--- a/image_recover_tool/image-check/image/image.go
+++ b/image_recover_tool/image-check/image/image.go
@@ -56,7 +56,7 @@ func (is *store) getImageFullId(id string) (string, error) {
 	} else if len(imageFullId) == 0 {
 		return "", fmt.Errorf("No such object: %s", id)
 	} else {
-		return "", fmt.Errorf("Multiple IDs found with provided prefix: %v", imageFullId[1])
+		return "", fmt.Errorf("Multiple IDs found with provided prefix: %s", id)
 	}
 }
 
diff --git a/image_recover_tool/image-check/layer/check_overlay2.go b/image_recover_tool/image-check/layer/check_overlay2.go
index 521c6cc38a92ef2ce2c4ae6ad382e32e9629c0f9..511bc7c7e8c9363456082e507dc5d11335fddae0 100644
--- a/image_recover_tool/image-check/layer/check_overlay2.go
+++ b/image_recover_tool/image-check/layer/check_overlay2.go
@@ -145,11 +145,17 @@ func (d *Driver) GetContainerParent(id string) (string, error) {
 	if err == nil {
 		// 找到容器所依赖镜像层的cacheID
 		low := strings.Split(string(lowers), ":")
+		if len(low) < 2 {
+			return "", fmt.Errorf("CacheID: %s, unexpected target length: %v < 2", id, len(low))
+		}
 		parent, err := os.Readlink(path.Join(d.home, string(low[1])))
 		if err != nil {
 			return "", err
 		}
 		parentCacheID := strings.Split(string(parent), "/")
+		if len(parentCacheID) != 3 {
+			return "", fmt.Errorf("CacheID: %s, unexpected target length: %v != 3", id, len(parentCacheID))
+		}
 		return parentCacheID[1], nil
 	} else {
 		return "", err