Vulnerability in Kernel: i2c: img-scb
Summary
GSD-2021-1000424: i2c: img-scb: fix reference leak when pm_runtime_get_sync fails. Affects Kernel versions >= 93222bd9b966105f43418fd336654ad10045783a, < 4734c4b1d9573c9d20bbc46cf37dde095ee011b8. No fix is published. How to fix ↓
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Background
The Kernel is a critical component of the Linux operating system that manages communication between hardware and software. It provides essential functions and services to enable the proper functioning of the system. The i2c (Inter-Integrated Circuit) subsystem within the Kernel is responsible for supporting communication between integrated circuits on a computer motherboard. The img-scb driver is a part of the i2c subsystem and is used for managing the Synopsys DesignWare I2C controller. This vulnerability in the img-scb driver can lead to a reference leak when the pm_runtime_get_sync function fails.
Vulnerability Detail
The vulnerability in the img-scb driver occurs when the pm_runtime_get_sync function fails. This failure can result in a reference leak, which can lead to resource exhaustion and potential denial-of-service attacks. An attacker may be able to exploit this vulnerability to exhaust system resources, causing instability or crashes. The vulnerability was introduced in version v4.15 of the Linux Kernel and has been fixed in version v5.4.119.
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. It is advised to apply the recommended fix by updating the Linux Kernel.
Conclusion
The vulnerability in the Kernel's i2c img-scb driver can result in a reference leak when the pm_runtime_get_sync function fails. This can lead to resource exhaustion and potential denial-of-service attacks. It is crucial to update the Linux Kernel to version v5.4.119 or later to fix this vulnerability. For further support on vulnerability remediation, you can contact DevNack.com.
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FAQ
This vulnerability can lead to resource exhaustion and potential denial-of-service attacks. It may cause system instability or crashes.
You can use the Vulert 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 provide real-time alerts for open-source vulnerabilities, including this one.
There is no known exploit for this vulnerability at the moment. However, it is important to apply the recommended fix to prevent any potential exploitation.
The recommended fix for this vulnerability is to update the Linux Kernel to version v5.4.119 or later. There is no specific mitigation mentioned apart from this update.
You can find more information about this vulnerability in the GSD-2021-1000424 JSON file available at https://github.com/cloudsecurityalliance/gsd-database/blob/main/2021/1000xxx/GSD-2021-1000424.json
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