Data Race Vulnerability in Linux Kernel
Summary
GSD-2022-1004677: tcp: Fix a data-race around sysctl_tcp_probe_threshold. Affects Kernel versions >= 6b58e0a5f32dedb609438bb9c9c82aa6e23381f2, < b04817c94fbd285a967d9b830b274fe9998c9c0b. No fix is published. How to fix ↓
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Background
The Linux Kernel is the core component of the Linux operating system. It provides essential functionality and interfaces for various hardware and software components. The kernel manages system resources, handles device drivers, and facilitates communication between software and hardware. It is a critical component for the proper functioning of the Linux operating system.
Vulnerability Detail
The identified vulnerability in the Linux Kernel is related to a data race around the sysctl_tcp_probe_threshold. A data race occurs when multiple threads or processes access shared data concurrently without proper synchronization. In this case, the vulnerability can lead to inconsistent or incorrect behavior of the sysctl_tcp_probe_threshold, which is a tunable parameter related to TCP probing. The impact and attack plausibility of this vulnerability have not been proven yet.
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 data race vulnerability in the Linux Kernel around sysctl_tcp_probe_threshold can lead to inconsistent or incorrect behavior. It is recommended to update the Linux Kernel to version v5.4.208 or later to fix this vulnerability. For further support on vulnerability remediation, you can reach out to DevNack.com.
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FAQ
A data race vulnerability occurs when multiple threads or processes access shared data concurrently without proper synchronization. This can lead to inconsistent or incorrect behavior of the affected software.
sysctl_tcp_probe_threshold is a tunable parameter related to TCP probing in the Linux Kernel. It affects the behavior of TCP probing mechanisms.
The impact of this vulnerability is not yet proven. However, data race vulnerabilities can potentially lead to unexpected behavior, crashes, or security vulnerabilities.
You can use tools like Vulert (https://vulert.com) to check if your Linux Kernel version 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.
There is no known exploit for this vulnerability at the moment. However, it is always recommended to keep your software up to date to mitigate potential security risks.
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