Data-races in nexthop_compat_mode in Kernel
Summary
GSD-2022-1004570: nexthop: Fix data-races around nexthop_compat_mode. Affects Kernel versions >= 4f80116d3df3b23ee4b83ea8557629e1799bc230, < a51040d4b120f3520df64fb0b9c63b31d69bea9b. No fix is published. How to fix ↓
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Background
The Kernel is a crucial component of the Linux operating system that acts as a bridge between the hardware and software layers. It provides essential functionalities such as process management, memory management, and device drivers. The nexthop_compat_mode is a feature in the Kernel that allows compatibility with older versions of the nexthop API. This feature is vulnerable to data-races, which can lead to unexpected behavior and potential security issues.
Vulnerability Detail
The data-races in nexthop_compat_mode can result in race conditions where multiple threads access shared data simultaneously, leading to unpredictable outcomes. Attackers may exploit these race conditions to manipulate the shared data in unintended ways, potentially causing denial of service, privilege escalation, or information disclosure. The vulnerability was introduced in version v5.8 of the Linux Kernel and has been fixed in version v5.10.132.
How To Fix
No fixed version is published for this vulnerability.
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Conclusion
The data-races in nexthop_compat_mode vulnerability in the Kernel can have serious security implications. It is crucial to update the Linux Kernel to version v5.10.132 or later to mitigate this vulnerability. For further support and assistance in vulnerability remediation, please contact DevNack.com.
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FAQ
The vulnerability can potentially be exploited by attackers to manipulate shared data, leading to denial of service, privilege escalation, or information disclosure.
You can use the Vulert Playground at Vulert Scanner to check if your system is affected by this vulnerability. Simply upload your package-lock.json file and Vulert will analyze it for any open-source vulnerabilities, including this one.
No, there are no known workarounds for this vulnerability. It is recommended to update the Linux Kernel to the fixed version.
There is no information available regarding exploitation of this vulnerability in the wild.
You can find more information about this vulnerability in the GSD database entry: https://github.com/cloudsecurityalliance/gsd-database/blob/main/2022/1004xxx/GSD-2022-1004570.json
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