xen/grants: prevent integer overflow in gnttabdmaalloc_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 v5.15.66 by commit 763d77241d8fc79225a939a3512a5b986d4c9aae, it was introduced in version v5.5 by commit b3f7931f5c61ba39e81a5c958bf5d65ebb1838af. For more details please see the references link.