gso: do not skip outer ip header in case of ipip and net_failover
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 v5.15.26 by commit 899e56a1ad435261812355550ae869d8be3df395, it was introduced in version v3.13 by commit cb32f511a70be8967ac9025cf49c44324ced9a39. For more details please see the references link.