CVE-2024-50066 mm/mremap: fix move_normal_pmd/retract_page_tables race

In the Linux kernel, the following vulnerability has been resolved: mm/mremap: fix movenormalpmd/retractpagetables race In mremap, movepagetables looks at the type of the PMD entry and the specified address range to figure out by which method the next chunk of page table entries should be moved. ...