net: netlink: af_netlink: Prevent empty skb by adding a check on len.
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 v5.15.10 by commit 4c986072a8c9249b9398c7a18f216dc26a9f0e35. For more details please see the references link.