Vulnerability in Kernel package: media: i2c: dw9714
Summary
GSD-2022-1002829: media: i2c: dw9714: Disable the regulator when the driver fails to probe. Affects Kernel versions < fa83ea1de5b3efd87fe01408d5db1fd2ff4767fa. No fix is published. How to fix ↓
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Background
The Kernel package is a critical component of the Linux operating system, responsible for managing the core functionality and communication between hardware and software. It includes various drivers for different devices, including the media subsystem. The media subsystem handles media-related operations such as video capture and playback. One of the drivers in the media subsystem is the i2c driver for the dw9714 chip. This driver enables communication with the dw9714 chip over the I2C bus. The dw9714 chip is commonly used in cameras and other media devices. Unfortunately, a vulnerability has been discovered in the i2c driver for the dw9714 chip, which could lead to potential security issues.
Vulnerability Detail
The vulnerability in the i2c driver for the dw9714 chip occurs when the driver fails to probe successfully. In such cases, the driver does not properly disable the regulator, which can have unintended consequences. While the exact impact and attack plausibility have not been proven, this vulnerability could potentially be exploited by an attacker to gain unauthorized access or perform other malicious activities. It is important to note that this vulnerability has been fixed in the Linux Kernel version v5.18.3 by commit fa83ea1de5b3efd87fe01408d5db1fd2ff4767fa.
How To Fix
No fixed version is published for this vulnerability.
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Workaround
If updating the Kernel package is not immediately feasible, a temporary workaround can be implemented by manually disabling the regulator when the driver fails to probe. This can be done by modifying the driver code to include a check for probe failure and disabling the regulator accordingly. Here is an example of how this workaround can be implemented in the dw9714 driver:
if (probe_failed) {
disable_regulator();
}
Conclusion
In conclusion, the Kernel package is vulnerable to a security issue in the i2c driver for the dw9714 chip. This vulnerability can potentially be exploited by attackers to gain unauthorized access or perform malicious activities. It is crucial to update the Kernel package to version v5.18.3 or later to mitigate this vulnerability. If immediate update is not possible, a temporary workaround can be implemented by disabling the regulator when the driver fails to probe. For further support on vulnerability remediation, please contact DevNack.com.
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FAQ
The exact impact of this vulnerability is not yet proven, but it could potentially allow an attacker to gain unauthorized access or perform other malicious activities.
You can use tools like Vulert (https://vulert.com) to check if your system is affected by this vulnerability. Vulert uses a manifest file like package-lock.json to monitor and alert in real-time for open-source vulnerabilities in the software.
Yes, this vulnerability has been fixed in the Linux Kernel version v5.18.3 by commit fa83ea1de5b3efd87fe01408d5db1fd2ff4767fa.
If updating the Kernel package is not immediately feasible, you can implement a temporary workaround by manually disabling the regulator when the driver fails to probe. Refer to the 'workaround' section for more details.
You can find more information about this vulnerability in the GSD-2022-1002829 JSON file available at https://github.com/cloudsecurityalliance/gsd-database/blob/main/2022/1002xxx/GSD-2022-1002829.json
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