CVE-2024-26621 Information

Description

In the Linux kernel the following vulnerability has been resolved:

mm: huge_memory: don’t force huge page alignment on 32 bit

commit efa7df3e3bb5 (\mm: align larger anonymous mappings on THP boundaries) caused two issues [1] [2] reported on 32 bit system or compat userspace.

It doesn’t make too much sense to force huge page alignment on 32 bit system due to the constrained virtual address space.

[1] https://lore.kernel.org/linux-mm/d0a136a0-4a31-46bc-adf4-2db109a61672@kernel.org/ [2] https://lore.kernel.org/linux-mm/CAJuCfpHXLdQy1a2B6xN2d7quTYwg2OoZseYPZTRpU0eHHKD-sQ@mail.gmail.com/

Reference

https://git.kernel.org/stable/c/7432376c913381c5f24d373a87ff629bbde94b47 https://git.kernel.org/stable/c/4ef9ad19e17676b9ef071309bc62020e2373705d