From 99171772c89b0fe03f39b09992e5c4680adf2dca Mon Sep 17 00:00:00 2001
From: nacin <nacin@1a063a9b-81f0-0310-95a4-ce76da25c4cd>
Date: Wed, 12 Jan 2011 17:24:34 +0000
Subject: [PATCH] Force get_pagenum to validate max pages. Add sanity redirect
 code to upload.php. see #16187. props MarkJaquith, greuben.

git-svn-id: http://svn.automattic.com/wordpress/trunk@17271 1a063a9b-81f0-0310-95a4-ce76da25c4cd
---
 wp-admin/includes/class-wp-list-table.php | 3 +++
 wp-admin/upload.php                       | 7 +++++++
 2 files changed, 10 insertions(+)

diff --git a/wp-admin/includes/class-wp-list-table.php b/wp-admin/includes/class-wp-list-table.php
index 7adc3ee6d..fd4cf8df8 100644
--- a/wp-admin/includes/class-wp-list-table.php
+++ b/wp-admin/includes/class-wp-list-table.php
@@ -438,6 +438,9 @@ class WP_List_Table {
 	function get_pagenum() {
 		$pagenum = isset( $_REQUEST['paged'] ) ? absint( $_REQUEST['paged'] ) : 0;
 
+		if( isset( $this->_pagination_args['total_pages'] ) && $pagenum > $this->_pagination_args['total_pages'] )
+			$pagenum = $this->_pagination_args['total_pages'];
+
 		return max( 1, $pagenum );
 	}
 
diff --git a/wp-admin/upload.php b/wp-admin/upload.php
index fb8515468..629be5b8a 100644
--- a/wp-admin/upload.php
+++ b/wp-admin/upload.php
@@ -13,6 +13,7 @@ if ( !current_user_can('upload_files') )
 	wp_die( __( 'You do not have permission to upload files.' ) );
 
 $wp_list_table = get_list_table('WP_Media_List_Table');
+$pagenum = $wp_list_table->get_pagenum();
 
 // Handle bulk actions
 $doaction = $wp_list_table->current_action();
@@ -131,6 +132,12 @@ if ( $doaction ) {
 
 $wp_list_table->prepare_items();
 
+$total_pages = $wp_list_table->get_pagination_arg( 'total_pages' );
+if ( $pagenum > $total_pages && $total_pages > 0 ) {
+	wp_redirect( add_query_arg( 'paged', $total_pages ) );
+	exit;
+}
+
 $title = __('Media Library');
 $parent_file = 'upload.php';