CVE-2024-57883 is a medium severity vulnerability in the Linux kernel's memory management subsystem related to HugeTLB page tables. The flaw involves incorrect reference count handling for PMD page tables, which can cause page table leaks and bad page states. This issue may be triggered by kernel components like damon, offline_page, or page_idle that increase the page table's reference count. The vulnerability does not impact confidentiality or integrity but can cause availability issues due to page table leaks and kernel errors. A fix has been implemented by introducing an independent PMD page table shared count to correctly track sharing and prevent leaks.