CVE-2026-80893

CVE-2026-80893 is a Linux kernel vulnerability in the mm/hugetlb subsystem. The root cause lies in copy_hugetlb_page_range(), which clears the userfaultfd write-protect (uffd-wp) bit on swap entries using huge_pte_clear_uffd_wp(). This function operates on the present-PTE bit position, but swap e...