CVE-2024-52319 Information

Description

In the Linux kernel the following vulnerability has been resolved:

mm: use aligned address in clear_gigantic_page()

In current kernel hugetlb_no_page() calls folio_zero_user() with the fault address. Where the fault address may be not aligned with the huge page size. Then folio_zero_user() may call clear_gigantic_page() with the address while clear_gigantic_page() requires the address to be huge page size aligned. So this may cause memory corruption or information leak addtional use more obvious naming ‘addr_hint’ instead of ‘addr’ for clear_gigantic_page().

Reference

https://git.kernel.org/stable/c/8aca2bc96c833ba695ede7a45ad7784c836a262e https://git.kernel.org/stable/c/b79b6fe0737f233f0be1465052b7f0e75f324735