GitBook: [master] one page modified

linux-unix/privilege-escalation/runc-privilege-escalation.md

@@ -34,6 +34,10 @@ mkdir rootfs
 runc run demo
 ```
 
+{% hint style="danger" %}
+This won't always work as the default operation of runc is to run as root, so running it as an unprivileged user simply cannot work \(unless you have a rootless configuration\). Making a rootless configuration the default isn't generally a good idea because there are quite a few restrictions inside rootless containers that don't apply outside rootless containers.
+{% endhint %}
+