John1988

**Name of the Vulnerable Software and Affected Versions** Linux kernel (affected versions not specified) **Description** The `vti6 init net()` function fails to set the `netns immutable` flag on the per-netns fallback tunnel device ('ip6 vti0'). This flag is intended to prevent the device from being moved to another network namespace, a behavior correctly implemented in other tunnel drivers such as `ip6 tunnel`, `sit`, `ip6 gre`, and `ip tunnel`. **Recommendations** At the moment, there is no information about a newer version that contains a fix for this vulnerability.