diff --git a/core/lib/Drupal/Core/File/FileSystem.php b/core/lib/Drupal/Core/File/FileSystem.php
index e7e4c7a1947..8547f6e98fd 100644
--- a/core/lib/Drupal/Core/File/FileSystem.php
+++ b/core/lib/Drupal/Core/File/FileSystem.php
@@ -520,12 +520,22 @@ class FileSystem implements FileSystemInterface {
     }
 
     if (!is_dir($directory)) {
+      if (!($options & static::CREATE_DIRECTORY)) {
+        return FALSE;
+      }
+
       // Let mkdir() recursively create directories and use the default
       // directory permissions.
-      if ($options & static::CREATE_DIRECTORY) {
-        return @$this->mkdir($directory, NULL, TRUE);
+      $success = @$this->mkdir($directory, NULL, TRUE);
+      if ($success) {
+        return TRUE;
+      }
+      // If the operation failed, check again if the directory was created
+      // by another process/server, only report a failure if not. In this case
+      // we still need to ensure the directory is writable.
+      if (!is_dir($directory)) {
+        return FALSE;
       }
-      return FALSE;
     }
 
     $writable = is_writable($directory);