CVE-2024-26621
mm: huge_memory: don't force huge page alignment on 32 bit
- State
- Published
- Severity
- 8.2 High
- Published
- Mar 2, 2024
- Updated
- Aug 5, 2026
- Reserved
- Feb 19, 2024
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/
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 3.1 | 8.2 High | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:L | Linux |
Weaknesses
The record names no weakness.
Affected Products
| Product | Versions |
|---|---|
LinuxLinux |
|
LinuxLinux |
|
References
- https://git.kernel.org/stable/c/87632bc9ecff5ded93433bc0fca428019bdd1cfe
- https://git.kernel.org/stable/c/6ea9aa8d97e6563676094cb35755884173269555
- https://git.kernel.org/stable/c/7432376c913381c5f24d373a87ff629bbde94b47
- https://git.kernel.org/stable/c/4ef9ad19e17676b9ef071309bc62020e2373705d
- https://zolutal.github.io/aslrnt/
- http://www.openwall.com/lists/oss-security/2024/07/08/3
- http://www.openwall.com/lists/oss-security/2024/07/08/5
- http://www.openwall.com/lists/oss-security/2024/07/08/4
- 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
- http://www.openwall.com/lists/oss-security/2024/07/13/2
- http://www.openwall.com/lists/oss-security/2024/07/13/7
- http://www.openwall.com/lists/oss-security/2024/07/15/2
- http://www.openwall.com/lists/oss-security/2024/07/15/1
- http://www.openwall.com/lists/oss-security/2024/07/16/1
- http://www.openwall.com/lists/oss-security/2024/07/16/2
- http://www.openwall.com/lists/oss-security/2024/07/29/2
- http://www.openwall.com/lists/oss-security/2024/07/30/2
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