Missing Lock Vulnerability in Linux Kernel
Summary
GSD-2021-1002150: misc: fastrpc: Add missing lock before accessing find_vma(). Affects Kernel versions >= 80f3afd72bd4149c57daf852905476b43bb47647, < f9a470db2736b01538ad193c316eb3f26be37d58. No fix is published. How to fix ↓
Check if this vulnerability affects your application
Upload a manifest or SBOM and we'll show whether you're affected, plus every other risky package in the same scan.
No signup required · Results in about 60 seconds
Background
The Linux Kernel is the core component of the Linux operating system, responsible for managing system resources and providing an interface for applications to interact with the hardware. It is a critical piece of software that is constantly being developed and maintained by a large community of contributors. The vulnerability in question affects the Linux Kernel and is related to the fastrpc module, which is responsible for facilitating fast remote procedure calls (RPC) between different processes or systems.
Vulnerability Detail
The vulnerability identified in the fastrpc module of the Linux Kernel is due to a missing lock before accessing the find_vma() function. This missing lock can lead to race conditions where multiple threads or processes can access the same memory region simultaneously, potentially causing data corruption or other security issues. 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.
Tip — Not sure whether your app is affected? Vulert can check the versions your app actually runs. Scan free →
Workaround
There is no specific workaround mentioned for this vulnerability. The recommended approach is to apply the fix by updating to the latest version of the Linux Kernel.
Conclusion
The missing lock vulnerability in the fastrpc module of the Linux Kernel can potentially lead to data corruption or other security issues. It is crucial to update to the latest version of the Linux Kernel (v5.15 or later) to apply the necessary fix. For further support on vulnerability remediation, you can reach out to DevNack.com.
See every vulnerability recorded for Kernel →
FAQ
The fastrpc module is a component of the Linux Kernel that enables fast remote procedure calls (RPC) between different processes or systems. It provides a mechanism for efficient communication and data exchange.
The impact of this vulnerability is not yet proven, but it has the potential to cause data corruption or other security issues due to race conditions.
You can use tools like Vulert 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.
There is no known exploit for this vulnerability at the moment. However, it is important to apply the fix to mitigate any potential risks.
You can refer to the Linux Kernel repository on Git for more information about the fix. The fix was introduced in version v5.15 by commit f9a470db2736b01538ad193c316eb3f26be37d58.
Related vulnerabilities
Recent vulnerabilities recorded for Kernel.
