iavf: Lock Clearing Vulnerability in Kernel
Summary
UVI-2021-1002323: iavf: don't clear a lock we don't hold. Affects Kernel versions >= 640a8af5841fd66a26e26f5b9fb5476a3755852a, < c3db4fffb364ac7bf602de115afe69c32a46383c. No fix is published. How to fix ↓
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Background
The Kernel is a crucial component of the Linux operating system that manages system resources and facilitates communication between hardware and software. It provides essential functionalities such as process management, memory management, and device drivers. The iavf module is responsible for supporting Intel Ethernet Adaptive Virtual Function (AVF) devices. These devices enable virtualization and network acceleration capabilities. However, a vulnerability has been identified in the iavf module that could potentially lead to security issues.
Vulnerability Detail
The vulnerability in the iavf module involves the improper clearing of a lock that is not held by the current process. This can result in race conditions and potential access to shared resources without proper synchronization. An attacker could exploit this vulnerability to gain unauthorized access to sensitive information or disrupt the normal operation of the system. 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 iavf module in the Linux Kernel is vulnerable to a lock clearing issue. To mitigate this vulnerability, it is recommended to update the Kernel to version v5.15.5 or later. For further support on vulnerability remediation, you can contact DevNack.com.
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FAQ
The iavf module is responsible for supporting Intel Ethernet Adaptive Virtual Function (AVF) devices, which enable virtualization and network acceleration capabilities.
The impact of this vulnerability could include unauthorized access to sensitive information or disruption of the system's normal operation.
To fix this vulnerability, update the Linux Kernel to version v5.15.5 or later.
No specific workaround has been mentioned for this vulnerability.
For more details, you can refer to the vulnerability report at the following source: https://github.com/cloudsecurityalliance/gsd-database/blob/main/2021/1002xxx/UVI-2021-1002323.json
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