	private function _stablepages( $option ) {
		if ( function_exists( 'efLoadFlaggedRevs' ) ) {
			//Do not add this again if 'qualitypages' has already added it.
			if ( !$this->parametersProcessed['qualitypages'] ) {
				$this->addJoin(
					'flaggedpages',
					[
						"LEFT JOIN",
						"page_id = fp_page_id"
					]
				);
			}
			switch ( $option ) {
				case 'only':
					$this->addWhere(
						[
							'fp_stable IS NOT NULL'
						]
					);
					break;
				case 'exclude':
					$this->addWhere(
						[
							'fp_stable'	=> null
						]
					);
					break;
			}
		}
	}
The software does not properly control the allocation and maintenance of a limited resource, thereby enabling an actor to influence the amount of resources consumed, eventually leading to the exhaustion of available resources.