CVE-2025-40006 mm/hugetlb: fix folio is still mapped when deleted

In the Linux kernel, the following vulnerability has been resolved: mm/hugetlb: fix folio is still mapped when deleted Migration may be raced with fallocating hole. removeinodesinglefolio will unmap the folio if the folio is still mapped. However, it's called without folio lock. If the folio is...