MIPS: Fix Fortify Panic when Copying ASM Exception Handlers in Linux Kernel
Summary
GSD-2022-1002477: MIPS: fix fortify panic when copying asm exception handlers. Affects Kernel versions < fc283677599b5b13e5e2734abb8829adb8c02ce1. No fix is published. How to fix ↓
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Background
The Linux Kernel is a widely used open-source operating system kernel that serves as the foundation for various Linux distributions. It provides essential functionality for managing system resources, handling hardware devices, and facilitating communication between software components. The MIPS architecture is one of the supported architectures in the Linux Kernel, commonly used in embedded systems and networking devices. This vulnerability specifically affects the MIPS architecture in the Linux Kernel.
Vulnerability Detail
The vulnerability identified in the MIPS architecture of the Linux Kernel involves a fortify panic when copying assembly (ASM) exception handlers. Fortify is a security feature in the Linux Kernel that aims to prevent buffer overflows and other memory-related vulnerabilities. However, in this case, the fortify mechanism triggers a panic when attempting to copy ASM exception handlers, potentially leading to a denial-of-service (DoS) situation or system instability. The vulnerability has the potential to be exploited by an attacker with local access to the affected system.
How To Fix
No fixed version is published for this vulnerability.
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Workaround
No specific workaround has been mentioned for this vulnerability. However, users can mitigate the risk by ensuring that only trusted individuals have local access to the affected system.
Conclusion
The vulnerability in the MIPS architecture of the Linux Kernel, which triggers a fortify panic when copying ASM exception handlers, has been addressed in the Linux Kernel version v4.9.311. Users are advised to update their Linux Kernel installation to at least this version to mitigate the risk. For further support and assistance in vulnerability remediation, please contact DevNack.com.
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FAQ
The Linux Kernel is an open-source operating system kernel that provides essential functionality for managing system resources, handling hardware devices, and facilitating communication between software components.
The MIPS architecture is a widely used processor architecture commonly found in embedded systems and networking devices.
Fortify is a security feature in the Linux Kernel that aims to prevent buffer overflows and other memory-related vulnerabilities.
In the context of the Linux Kernel, a panic refers to a situation where the kernel detects a critical error or an unrecoverable condition, leading to the system halting or restarting.
The Linux Kernel can be updated by obtaining the latest version from the official Linux Kernel repository or through the respective Linux distribution's package management system.
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