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/

References

• https://nvd.nist.gov/vuln/detail/CVE-2024-26621
• https://git.kernel.org/stable/c/4ef9ad19e17676b9ef071309bc62020e2373705d
• https://git.kernel.org/stable/c/7432376c913381c5f24d373a87ff629bbde94b47
• https://git.kernel.org/stable/c/87632bc9ecff5ded93433bc0fca428019bdd1cfe
• https://zolutal.github.io/aslrnt
• http://www.openwall.com/lists/oss-security/2024/07/08/3
• http://www.openwall.com/lists/oss-security/2024/07/08/4
• http://www.openwall.com/lists/oss-security/2024/07/08/5
• http://www.openwall.com/lists/oss-security/2024/07/08/6
• http://www.openwall.com/lists/oss-security/2024/07/08/7
• http://www.openwall.com/lists/oss-security/2024/07/08/8
• http://www.openwall.com/lists/oss-security/2024/07/09/1
• http://www.openwall.com/lists/oss-security/2024/07/10/5
• http://www.openwall.com/lists/oss-security/2024/07/10/7
• http://www.openwall.com/lists/oss-security/2024/07/10/8
• http://www.openwall.com/lists/oss-security/2024/07/11/4
• http://www.openwall.com/lists/oss-security/2024/07/11/5
• http://www.openwall.com/lists/oss-security/2024/07/11/7
• http://www.openwall.com/lists/oss-security/2024/07/12/3