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CVE-2024-42258— mm: huge_memory: use !CONFIG_64BIT to relax huge page alignment on 32 bit machines

Quick assessment

Affected
Linux Linux
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Linux kernel是美国Linux基金会的开源操作系统Linux所使用的内核。 Linux kernel存在安全漏洞，该漏洞源于在32位系统上强制大页对齐的问题，由于32位系统虚拟地址空间受限，强制对齐可能导致内存分配问题和潜在的系统不稳定。

CVSS 7.1 · High EPSS 0.22% · P12

Possible ATT&CK Techniques 1 AI

T1068 · Exploitation for Privilege Escalation

Affected Version Matrix 12

VendorProduct Version RangeStatus
Linux Linux 87632bc9ecff5ded93433bc0fca428019bdd1cfe< 89f2914dd4b47d2fad3deef0d700f9526d98d11f affected
6ea9aa8d97e6563676094cb35755884173269555< a5c399fe433a115e9d3693169b5f357f3194af0a affected
4ef9ad19e17676b9ef071309bc62020e2373705d< 7e1f4efb8d6140b2ec79bf760c43e1fc186e8dfc affected
4ef9ad19e17676b9ef071309bc62020e2373705d< d9592025000b3cf26c742f3505da7b83aedc26d5 affected
7432376c913381c5f24d373a87ff629bbde94b47 affected
6.1.81< 6.1.105 affected
6.7.6< 6.8 affected
6.8 affected
… +4 more rows
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I. Basic Information for CVE-2024-42258

Vulnerability Information
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Vulnerability Title
mm: huge_memory: use !CONFIG_64BIT to relax huge page alignment on 32 bit machines
Source: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: mm: huge_memory: use !CONFIG_64BIT to relax huge page alignment on 32 bit machines Yves-Alexis Perez reported commit 4ef9ad19e176 ("mm: huge_memory: don't force huge page alignment on 32 bit") didn't work for x86_32 [1]. It is because x86_32 uses CONFIG_X86_32 instead of CONFIG_32BIT. !CONFIG_64BIT should cover all 32 bit machines. [1] https://lore.kernel.org/linux-mm/CAHbLzkr1LwH3pcTgM+aGQ31ip2bKqiqEQ8=FQB+t2c3dhNKNHA@mail.gmail.com/
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
N/A
Source: CVE Program / CVE List V5
Vulnerability Title
Linux kernel 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Linux kernel是美国Linux基金会的开源操作系统Linux所使用的内核。 Linux kernel存在安全漏洞，该漏洞源于在32位系统上强制大页对齐的问题，由于32位系统虚拟地址空间受限，强制对齐可能导致内存分配问题和潜在的系统不稳定。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
Linux Linux 87632bc9ecff5ded93433bc0fca428019bdd1cfe ~ 89f2914dd4b47d2fad3deef0d700f9526d98d11f -
Linux Linux 6.8 -

II. Public POCs for CVE-2024-42258

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III. Intelligence Information for CVE-2024-42258

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Other References for CVE-2024-42258 (3)

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

V. Comments for CVE-2024-42258

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