CVE-2024-52319: 
Linux Kernel vulnerability analysis and mitigation

CVE-2024-52319 is a vulnerability in the Linux kernel related to memory handling in the clear_gigantic_page() function. The issue was discovered when hugetlb_no_page() calls folio_zero_user() with a fault address that may not be aligned with the huge page size. The vulnerability was disclosed on January 11, 2025, affecting the Linux kernel's memory management subsystem (NVD).

The vulnerability stems from a misalignment issue in the clear_gigantic_page() function. When hugetlb_no_page() calls folio_zero_user() with the fault address, the address may not be properly aligned with the huge page size. The clear_gigantic_page() function requires the address to be huge page size aligned, but receives unaligned addresses. This technical issue was fixed by introducing proper address alignment and renaming the 'addr' parameter to 'addr_hint' for better clarity (Kernel Commit).

The vulnerability can lead to memory corruption or information leakage due to improper address alignment when handling huge pages in the Linux kernel (Kernel Commit).

The issue has been resolved through a patch that ensures proper address alignment in clear_gigantic_page(). The fix includes aligning the address with the folio size and improving parameter naming for better code clarity. The patch has been merged into the Linux kernel (Kernel Commit).