afpacket: fix data-race in packetsetsockopt / packet_setsockopt
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 v4.9.300 by commit bfce19548a2ba1e007c84fe725d70a9c3caf46a1, it was introduced in version v4.3 by commit 47dceb8ecdc1c3ad1818dfea3d659a05b74c3fc2. For more details please see the references link.