ASoC: atmel: Add missing of_node_put() in at91sam9g20ek_audio_probe
Summary
GSD-2022-1001564: ASoC: atmel: Add missing of_node_put() in at91sam9g20ek_audio_probe. Affects Kernel versions >= 531f67e41dcde1e358cf821d056241a66355cf03, < 32e6ceb05f36432811753852c674a301f944a24b. 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 drivers on various embedded 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 call to the of_node_put() function, which is used to release a reference to a device tree node. This missing call can result in a reference leak, potentially leading to resource exhaustion and denial of service attacks. The vulnerability was introduced in Linux Kernel version v3.8 and has been fixed in version v5.16.19.
How To Fix
No fixed version is published for this vulnerability.
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Conclusion
The ASoC at91sam9g20ek_audio_probe driver in the Linux Kernel package is vulnerable to a missing of_node_put() call, which can lead to resource exhaustion and denial of service attacks. It is recommended to update the Linux Kernel package to version v5.16.19 or later to fix this vulnerability. For further support on vulnerability remediation, please contact DevNack.com.
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FAQ
This vulnerability can potentially lead to resource exhaustion and denial of service attacks on systems using the Atmel AT91SAM9G20EK development board.
You can use the Vulert Playground at Vulert Scanner to check if your system is affected by this vulnerability. Simply upload your manifest file (e.g., package-lock.json) and Vulert will provide real-time alerts for open-source vulnerabilities.
No, there is no known workaround for this vulnerability. It is recommended to update the Linux Kernel package to the fixed version.
There are no known exploits for this vulnerability at the time of this report.
You can find more information about this vulnerability in the GSD-2022-1001564 JSON report available at https://github.com/cloudsecurityalliance/gsd-database/blob/main/2022/1001xxx/GSD-2022-1001564.json
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