diff -r 34716fd837a4 -r be944660c56a wp/wp-includes/widgets/class-wp-widget-links.php
--- a/wp/wp-includes/widgets/class-wp-widget-links.php	Tue Dec 15 15:52:01 2020 +0100
+++ b/wp/wp-includes/widgets/class-wp-widget-links.php	Wed Sep 21 18:19:35 2022 +0200
@@ -109,8 +109,8 @@
 			$instance['orderby'] = $new_instance['orderby'];
 		}
 
-		$instance['category'] = intval( $new_instance['category'] );
-		$instance['limit']    = ! empty( $new_instance['limit'] ) ? intval( $new_instance['limit'] ) : -1;
+		$instance['category'] = (int) $new_instance['category'];
+		$instance['limit']    = ! empty( $new_instance['limit'] ) ? (int) $new_instance['limit'] : -1;
 
 		return $instance;
 	}
@@ -138,7 +138,7 @@
 			)
 		);
 		$link_cats = get_terms( array( 'taxonomy' => 'link_category' ) );
-		$limit     = intval( $instance['limit'] );
+		$limit     = (int) $instance['limit'];
 		if ( ! $limit ) {
 			$limit = -1;
 		}
@@ -148,7 +148,7 @@
 			<select class="widefat" id="<?php echo $this->get_field_id( 'category' ); ?>" name="<?php echo $this->get_field_name( 'category' ); ?>">
 				<option value=""><?php _ex( 'All Links', 'links widget' ); ?></option>
 				<?php foreach ( $link_cats as $link_cat ) : ?>
-					<option value="<?php echo intval( $link_cat->term_id ); ?>" <?php selected( $instance['category'], $link_cat->term_id ); ?>>
+					<option value="<?php echo (int) $link_cat->term_id; ?>" <?php selected( $instance['category'], $link_cat->term_id ); ?>>
 						<?php echo esc_html( $link_cat->name ); ?>
 					</option>
 				<?php endforeach; ?>
@@ -181,7 +181,7 @@
 
 		<p>
 			<label for="<?php echo $this->get_field_id( 'limit' ); ?>"><?php _e( 'Number of links to show:' ); ?></label>
-			<input id="<?php echo $this->get_field_id( 'limit' ); ?>" name="<?php echo $this->get_field_name( 'limit' ); ?>" type="text" value="<?php echo ( -1 !== $limit ) ? intval( $limit ) : ''; ?>" size="3" />
+			<input id="<?php echo $this->get_field_id( 'limit' ); ?>" name="<?php echo $this->get_field_name( 'limit' ); ?>" type="text" value="<?php echo ( -1 !== $limit ) ? (int) $limit : ''; ?>" size="3" />
 		</p>
 		<?php
 	}