Linux Kernel SKB with empty ARP bytes set to zero

I am registering a netdevice notifier in kernel using:

netdev_rx_handler_register(dev, my_handler, data)

Upon receiving network SKBs I check them, and if ethertype is set to ETH_P_ARP I print skb->data which should contain ARP information, however all bytes are set to 0, even though skb->len corresponds to ARP request length.

It works on my regular PC, and prints ARP fields properly, but fails on remote enterprise level server.

I am using Ubuntu 22.04.3 LTS with 5.15.0-87-generic on both environments.

Could this be related to netdevice or this is a system level issue?