Timeout for Polling Status in spi: fsi
Summary
GSD-2022-1001154: spi: fsi: Implement a timeout for polling status. Affects Kernel versions < dac1438f347d3b8cf892105c94e254f29c5764de. No fix is published. How to fix ↓
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Background
The spi: fsi package is a component of the Linux Kernel, which is responsible for implementing a timeout for polling status. This feature ensures that the system does not get stuck indefinitely while waiting for a response from the spi: fsi module. However, a vulnerability has been discovered in this package that could potentially allow an attacker to exploit the lack of a timeout and cause a denial-of-service (DoS) condition or other security issues.
Vulnerability Detail
The vulnerability in spi: fsi arises from the absence of a timeout mechanism for polling status. Without a timeout, the system may become unresponsive if the spi: fsi module fails to provide a response. This could be exploited by an attacker to launch a DoS attack, potentially disrupting the normal functioning of the system. The impact and attack plausibility of this vulnerability have not been proven yet. The vulnerability has been fixed in Linux Kernel version v5.17.2 by commit dac1438f347d3b8cf892105c94e254f29c5764de.
How To Fix
No fixed version is published for this vulnerability.
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Conclusion
The spi: fsi package in the Linux Kernel is vulnerable to a lack of timeout mechanism for polling status. This vulnerability could potentially lead to a denial-of-service condition or other security issues. It is crucial to update the Linux Kernel to version v5.17.2 or later to fix this vulnerability. For further support on vulnerability remediation, please contact DevNack.com.
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FAQ
spi: fsi is a package in the Linux Kernel that handles communication between the SPI (Serial Peripheral Interface) bus and the FSI (Flexible System Interface) module. It allows devices connected to the SPI bus to communicate with the FSI module.
The impact of this vulnerability could range from a denial-of-service (DoS) condition to potential security issues. If exploited, an attacker could cause the system to become unresponsive or disrupt its normal functioning.
No, the impact and attack plausibility of this vulnerability have not been proven yet. However, it is still recommended to apply the fix provided by updating the Linux Kernel to the latest version.
To update the Linux Kernel, you can pull the latest changes from the official Linux Kernel repository using the 'git pull' command. After updating, recompile and reinstall the kernel on the affected system.
No specific workaround has been mentioned for this vulnerability. It is recommended to update the Linux Kernel to the latest version to mitigate the risk.
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