CVE-2025-39845

CVE-2025-39845 : In the Linux kernel, the patch defines ARCH_PAGE_TABLE_SYNC_MASK and arch_sync_kernel_mappings() to ensure page-table synchronization when calling p*d_populate_kernel(). For 5-level paging, synchronization uses pgd_populate_kernel(); for 4-level paging, pgd_populate() is a no-op ...