xen/blkfront: fix leaking data in shared pages
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 v5.15.53 by commit 7ed65a4ad8fa9f40bc3979b32c54243d6a684ec9. For more details please see the references link.