diff -u b/core/modules/views/src/Plugin/views/pager/Some.php b/core/modules/views/src/Plugin/views/pager/Some.php
--- b/core/modules/views/src/Plugin/views/pager/Some.php
+++ b/core/modules/views/src/Plugin/views/pager/Some.php
@@ -42,12 +42,14 @@
     $form['items_per_page'] = array(
       '#title' => $pager_text['items per page title'],
       '#type' => 'number',
+      '#min' => 0,
       '#description' => $pager_text['items per page description'],
       '#default_value' => $this->options['items_per_page'],
     );
 
     $form['offset'] = array(
       '#type' => 'number',
+      '#min' => 0,
       '#title' => $this->t('Offset (number of items to skip)'),
       '#description' => $this->t('For example, set this to 3 and the first 3 items will not be displayed.'),
       '#default_value' => $this->options['offset'],
only in patch2:
unchanged:
--- a/core/modules/views/src/Plugin/views/pager/SqlBase.php
+++ b/core/modules/views/src/Plugin/views/pager/SqlBase.php
@@ -47,12 +47,14 @@ public function buildOptionsForm(&$form, FormStateInterface $form_state) {
     $form['items_per_page'] = array(
       '#title' => $pager_text['items per page title'],
       '#type' => 'number',
+      '#min' => 0,
       '#description' => $pager_text['items per page description'],
       '#default_value' => $this->options['items_per_page'],
     );
 
     $form['offset'] = array(
       '#type' => 'number',
+      '#min' => 0,
       '#title' => $this->t('Offset (number of items to skip)'),
       '#description' => $this->t('For example, set this to 3 and the first 3 items will not be displayed.'),
       '#default_value' => $this->options['offset'],
@@ -67,6 +69,7 @@ public function buildOptionsForm(&$form, FormStateInterface $form_state) {
 
     $form['total_pages'] = array(
       '#type' => 'number',
+      '#min' => 0,
       '#title' => $this->t('Number of pages'),
       '#description' => $this->t('Leave empty to show all pages.'),
       '#default_value' => $this->options['total_pages'],