Fix the wrong asm constraint in delay_loop() in Kernel
Summary
GSD-2022-1003921: x86/delay: Fix the wrong asm constraint in delay_loop(). Affects Kernel versions >= e01b70ef3eb3080fecc35e15f68cd274c0a48163, < 12ffed97ae3303c3c4bc772c9329a9977a9941d6. No fix is published. How to fix ↓
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Background
The Kernel is a critical component of the Linux operating system that provides core functionalities and interfaces between hardware and software. It is responsible for managing system resources, handling device drivers, and facilitating communication between different software components. The delay_loop() function in the x86 architecture is used to introduce a delay in the execution of code. However, a vulnerability has been identified in the implementation of delay_loop() that can lead to incorrect behavior and potential security risks.
Vulnerability Detail
The vulnerability in delay_loop() arises from a wrong asm constraint in the x86 architecture. This incorrect constraint can result in unexpected behavior and potential security vulnerabilities. Attackers may be able to exploit this vulnerability to manipulate the delay introduced by delay_loop() and potentially disrupt the normal operation of the system. The impact and attack plausibility of this vulnerability have not been proven yet, but it is important to address it to ensure the stability and security of the system.
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 Kernel to the fixed version.
Conclusion
The vulnerability in delay_loop() in the Kernel can lead to incorrect behavior and potential security risks. It is crucial to update the Kernel to the fixed version to mitigate this vulnerability. For further support on vulnerability remediation, please contact DevNack.com.
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FAQ
The Kernel is a critical component of the Linux operating system that provides core functionalities and interfaces between hardware and software.
delay_loop() is a function in the x86 architecture that introduces a delay in the execution of code.
The impact of this vulnerability is not yet proven, but it has the potential to result in incorrect behavior and security risks.
To fix this vulnerability, update the Linux Kernel to version v4.19.247 or later.
There is no specific workaround mentioned for this vulnerability. Updating the Kernel to the fixed version is recommended.
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