tipc: fix a null-ptr-deref in tipctopsrvaccept
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 v4.19.264 by commit ce69bdac2310152bb70845024d5d704c52aabfc3, it was introduced in version v4.17 by commit 0ef897be12b8b4cf297b6016e79ec97ec90f2cf6. For more details please see the references link.