diff --git a/core/lib/Drupal/Core/Logger/LoggerChannelFactory.php b/core/lib/Drupal/Core/Logger/LoggerChannelFactory.php
index 1ec1710..7cacc50 100644
--- a/core/lib/Drupal/Core/Logger/LoggerChannelFactory.php
+++ b/core/lib/Drupal/Core/Logger/LoggerChannelFactory.php
@@ -44,7 +44,13 @@ public function get($channel) {
       if ($this->container) {
         try {
           $instance->setRequest($this->container->get('request'));
-          $instance->setCurrentUser($this->container->get('current_user'));
+          // Session handling is tightly coupled with user module, so only
+          // pass the current user to loggers if the user module actually
+          // exists.
+          // @todo Fix this in https://drupal.org/node/2272189
+          if ($this->container->get('module_handler')->moduleExists('user')) {
+            $instance->setCurrentUser($this->container->get('current_user'));
+          }
         }
         catch (RuntimeException $e) {
           // We are not in a request context.
diff --git a/core/lib/Drupal/Core/Logger/LoggerChannelFactoryInterface.php b/core/lib/Drupal/Core/Logger/LoggerChannelFactoryInterface.php
index 67d178c..7976dcb 100644
--- a/core/lib/Drupal/Core/Logger/LoggerChannelFactoryInterface.php
+++ b/core/lib/Drupal/Core/Logger/LoggerChannelFactoryInterface.php
@@ -32,8 +32,6 @@ public function get($channel);
    *   The PSR-3 logger to add.
    * @param int $priority
    *   The priority of the logger being added.
-   *
-   * @see \Drupal\Core\DependencyInjection\Compiler\RegisterLoggersPass
    */
   public function addLogger(LoggerInterface $logger, $priority = 0);