sctp: use call_rcu to free endpoint
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 v4.14.261 by commit 8873140f95d4977bf37e4cf0d5c5e3f6e34cdd3e, it was introduced in version v4.14 by commit d25adbeb0cdb860fb39e09cdd025e9cfc954c5ab. For more details please see the references link.