xen/xenbus: don't let xenbusgrantring() remove grants in error case
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 v5.16.14 by commit 69e581afd2eafd51df6d4a24ab488cb8863c2dcd. For more details please see the references link.