CVE-2026-64130: In the Linux kernel, the following vulnerability has been resolved: mm/page_alloc: fix initialization of tags of the hu

A bug in the Linux kernel's memory management caused the huge zero folio (a special large block of pre-allocated zero memory) to expose uncleared security tags (metadata used by ARM64's memory tagging extension) when init_on_free was enabled. The issue happened because the kernel skipped tag initialization for this special memory page, violating the documented guarantee that allocation tags should be zeroed when memory is first mapped to user space.