net/sched: act_mpls: Fix warning during failed attribute validation
This is an automated ID intended to aid in discovery of potential security vulnerabilities. The actual impact and attack plausibility have not yet been proven. This ID is fixed in Linux Kernel version v5.4.229 by commit 2b157c3c5d6b8ddca48d53c9e662032f65af8d61, it was introduced in version v5.3 by commit 2a2ea50870baa3fb4de0872c5b60828138654ca7. For more details please see the references link.