CVE-2026-23244 nvme: fix memory allocation in nvme_pr_read_keys()

In the Linux kernel, the following vulnerability has been resolved: nvme: fix memory allocation in nvmeprreadkeys nvmeprreadkeys takes numkeys from userspace and uses it to calculate the allocation size for rse via structsize. The upper limit is PRKEYSMAX 64K. A malicious or buggy userspace can...