Vulnerability in Kernel: x86/Kconfig allows CONFIG_X86_X32_ABI=y with llvm-objcopy

Kernel Updated 02 Oct 2025

Summary

24/04/2022

Disclosed on

N/A

Severity

No i

Fix available

Unrated

Severity

Not published

CVSS Score

GSD-2022-1001030: x86/Kconfig: Do not allow CONFIG_X86_X32_ABI=y with llvm-objcopy. Affects Kernel versions < 2b82b07ce3c7c3a34a5f88ea116d9d6f39844fa6. No fix is published. How to fix ↓

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Background

The Kernel is a critical component of the Linux operating system that manages system resources and facilitates communication between hardware and software. It provides essential functionalities such as process management, memory management, and device drivers. The x86/Kconfig module within the Kernel is responsible for configuring various options specific to x86 architecture. One of these options is CONFIG_X86_X32_ABI, which enables support for the x32 ABI (Application Binary Interface). llvm-objcopy is a utility used for manipulating object files. However, allowing CONFIG_X86_X32_ABI to be set to 'y' when using llvm-objcopy can lead to potential security vulnerabilities.

Vulnerability Detail

The vulnerability arises from the improper combination of CONFIG_X86_X32_ABI=y and llvm-objcopy. When these two are used together, it can result in security weaknesses that have not been fully explored or proven. The impact and plausibility of attacks are yet to be determined. This vulnerability has been addressed in the Linux Kernel version v5.17.3 through commit 2b82b07ce3c7c3a34a5f88ea116d9d6f39844fa6.

How To Fix

No fixed version is published for this vulnerability.

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Workaround

There is no specific workaround mentioned for this vulnerability. The recommended approach is to update the Linux Kernel to the fixed version.

Conclusion

The vulnerability in the Kernel, specifically in the x86/Kconfig module, allows the improper combination of CONFIG_X86_X32_ABI=y with llvm-objcopy. This can result in potential security vulnerabilities. It is crucial to update the Linux Kernel to version v5.17.3 or later to mitigate this issue. For further support on vulnerability remediation, please contact DevNack.com.

See every vulnerability recorded for Kernel →