ipheth: fix EOVERFLOW in ipheth_rcvbulk_callback
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 v4.19.228 by commit 0ea863e2c9459ce62608a9ff28f8fec1380cfb6e, it was introduced in version v4.19.162 by commit 39553ecdea4743da7b6ce9096ae0a831fe881f75. For more details please see the references link.