Clocksource/Drivers/Exynos_mct: Handle DTS with Higher Number of Interrupts
Summary
GSD-2022-1001584: clocksource/drivers/exynos_mct: Handle DTS with higher number of interrupts. Affects Kernel versions >= 36ba5d527e9567ed303bad6e86a5f3c2723470f6, < ff37c4784dedb5b815bb2f8a0de23e4a5f51371f. No fix is published. How to fix ↓
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Background
The clocksource/drivers/exynos_mct package is a part of the Linux Kernel ecosystem. It provides support for the Exynos Multi-Core Timer (MCT) clocksource driver on Exynos-based systems. The MCT is responsible for providing a high-resolution timer for timekeeping purposes. This vulnerability affects versions of the Linux Kernel starting from v3.10 and was fixed in v5.16.19. The vulnerability arises when handling devices tree source (DTS) with a higher number of interrupts.
Vulnerability Detail
The vulnerability in clocksource/drivers/exynos_mct allows for potential security risks. Although the actual impact and attack plausibility have not been proven, it is crucial to address this vulnerability to ensure the integrity and security of the system. The vulnerability was introduced in Linux Kernel v3.10 and fixed in v5.16.19. Further technical details can be found in the references link provided.
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.
Conclusion
The clocksource/drivers/exynos_mct vulnerability in the Linux Kernel can be addressed by updating to version v5.16.19 or later. It is important to ensure the integrity and security of the system by promptly applying the necessary fixes. For further support on vulnerability remediation, you can reach out to DevNack.com.
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FAQ
clocksource/drivers/exynos_mct is a package in the Linux Kernel ecosystem that provides support for the Exynos Multi-Core Timer (MCT) clocksource driver on Exynos-based systems. It is responsible for providing a high-resolution timer for timekeeping purposes.
DTS stands for Device Tree Source. It is a data structure used in the Linux Kernel to describe the hardware configuration of a system. It provides a way to describe the hardware components and their connections in a platform-independent manner.
The actual impact and attack plausibility of this vulnerability have not been proven. However, it is important to address this vulnerability to ensure the integrity and security of the system.
You can use Vulert's playground (https://vulert.com/scanner) to check if your system is affected by this vulnerability. Vulert uses a manifest file like package-lock.json to monitor and alert in real-time for open-source vulnerabilities in the software.
You can find more information about this vulnerability in the references link provided in the vulnerability details.
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