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 v5.10.105 by commit 5c600371b8fd02cbbb0eb83a9f664e3f0b75c28e. For more details please see the references link.