ASoC: atmel: Add missing of_node_put() in at91sam9g20ek_audio_probe
Summary
GSD-2022-1002505: ASoC: atmel: Add missing of_node_put() in at91sam9g20ek_audio_probe. Affects Kernel versions >= 531f67e41dcde1e358cf821d056241a66355cf03, < 81f266396237cea09a8c6322a6a78535f06ed345. No fix is published. How to fix ↓
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Background
The ASoC (Audio System on Chip) framework in the Linux Kernel provides support for audio devices on various platforms. The Atmel at91sam9g20ek_audio_probe driver is responsible for handling audio functionality on the Atmel AT91SAM9G20EK development board. This vulnerability affects the Linux Kernel package.
Vulnerability Detail
The at91sam9g20ek_audio_probe driver in the ASoC framework for the Atmel AT91SAM9G20EK development board lacks a necessary call to of_node_put(), resulting in a reference count leak. This vulnerability can potentially lead to resource exhaustion and denial of service attacks. An attacker could exploit this vulnerability by repeatedly triggering the audio probe function, causing the system to run out of resources and become unresponsive.
How To Fix
No fixed version is published for this vulnerability.
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Workaround
There is no known workaround for this vulnerability. It is recommended to apply the fix provided in the Linux Kernel.
Conclusion
The ASoC driver for the Atmel AT91SAM9G20EK development board is vulnerable to a reference count leak due to a missing of_node_put() call. This vulnerability can lead to resource exhaustion and denial of service attacks. It is recommended to update to the latest version of the Linux Kernel to fix this vulnerability. For further support on vulnerability remediation, please contact DevNack.com.
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FAQ
This vulnerability can lead to resource exhaustion and denial of service attacks. An attacker could exploit this vulnerability to cause the system to become unresponsive.
You can use Vulert's playground at Vulert Scanner to check if your system is affected by this vulnerability. Simply upload your package-lock.json file to the playground and it will alert you in real-time if the vulnerability is present.
Yes, the fix for this vulnerability is available in Linux Kernel version v4.9.311 and later. It is recommended to update to the latest version of the Linux Kernel to mitigate this vulnerability.
There are no known workarounds for this vulnerability. It is recommended to apply the fix provided in the Linux Kernel.
You can find more information about this vulnerability in the vulnerability database maintained by the Cloud Security Alliance. The specific vulnerability ID is GSD-2022-1002505.
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