CVE-2026-72180 mm/huge_memory: preserve pmd_swp_uffd_wp on device-private PMD downgrade

In the Linux kernel, the following vulnerability has been resolved: mm/hugememory: preserve pmdswpuffdwp on device-private PMD downgrade changenonpresenthugepmd rewrites a writable device-private PMD swap entry into a readable one without carrying pmdswpuffdwp across. The PTE-level...