mld: fix panic in mld_newpack()
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 v4.9.271 by commit 17728616a4c85baf0edc975c60ba4e4157684d9a, it was introduced in version v2.6.35 by commit 72e09ad107e78d69ff4d3b97a69f0aad2b77280f. For more details please see the references link.