CVE-2024-51729
mm: use aligned address in copy_user_gigantic_page()
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mm: use aligned address in copy_user_gigantic_page()
In the Linux kernel, the following vulnerability has been resolved: mm: use aligned address in copy_user_gigantic_page() In current kernel, hugetlb_wp() calls copy_user_large_folio() with the fault address. Where the fault address may be not aligned with the huge page size. Then, copy_user_large_folio() may call copy_user_gigantic_page() with the address, while copy_user_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 copy_user_gigantic_page().
Reserved 2025-01-11 | Published 2025-01-11 | Updated 2025-01-20 | Assigner Linuxgit.kernel.org/...c/cb12d61361ce769672c7c7bd32107252598cdd8b
git.kernel.org/...c/f5d09de9f1bf9674c6418ff10d0a40cfe29268e1
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