Vulnerability in video: fbdev: pxa3xx-gcu
Summary
GSD-2022-1003947: video: fbdev: pxa3xx-gcu: release the resources correctly in pxa3xx_gcu_probe/remove(). Affects Kernel versions < 0de029454d42ad60d7f4234d84862d105a48c6d6. No fix is published. How to fix ↓
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Background
The video: fbdev: pxa3xx-gcu is a component of the Linux Kernel that provides support for the PXA3xx Graphics Co-Processor Unit (GCU). This module is responsible for managing graphics-related operations on devices that utilize the PXA3xx GCU. It allows for the rendering of graphics on framebuffer devices. However, a vulnerability has been identified in the module that could potentially lead to resource leaks and incorrect resource release in the pxa3xx_gcu_probe/remove functions.
Vulnerability Detail
The vulnerability in the video: fbdev: pxa3xx-gcu module arises from incorrect resource release in the pxa3xx_gcu_probe/remove functions. This can result in resource leaks, leading to potential memory corruption or resource exhaustion. An attacker may be able to exploit this vulnerability to cause a denial of service (DoS) condition or potentially execute arbitrary code with elevated privileges. The impact and attack plausibility of this vulnerability have not been proven yet.
How To Fix
No fixed version is published for this vulnerability.
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Workaround
As a workaround, users can apply the patch provided in commit 0de029454d42ad60d7f4234d84862d105a48c6d6 manually to their Linux Kernel. Here is an example of how to apply the patch:
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Clone the Linux Kernel repository: $ git clone https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
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Checkout the commit that fixes the vulnerability: $ git checkout 0de029454d42ad60d7f4234d84862d105a48c6d6
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Recompile and install the Kernel with the applied patch.
Please note that this workaround is temporary, and it is strongly recommended to update to the latest Kernel version as soon as possible.
Conclusion
In conclusion, the video: fbdev: pxa3xx-gcu module in the Linux Kernel is vulnerable to incorrect resource release in the pxa3xx_gcu_probe/remove functions. This vulnerability can lead to resource leaks, potential memory corruption, denial of service (DoS) conditions, or arbitrary code execution. It is crucial to update the Kernel to version v4.14.283 or later to fix this vulnerability. Applying the provided patch manually is a temporary workaround, but updating the Kernel is strongly recommended. For further support on vulnerability remediation, please contact DevNack.com.
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FAQ
The video: fbdev: pxa3xx-gcu module is a component of the Linux Kernel that provides support for the PXA3xx Graphics Co-Processor Unit (GCU). It allows for the rendering of graphics on framebuffer devices.
The impact of this vulnerability can range from resource leaks and potential memory corruption to denial of service (DoS) conditions or arbitrary code execution with elevated privileges.
To fix this vulnerability, it is recommended to update the Linux Kernel to version v4.14.283 or later, which includes the necessary fix for correct resource release in the pxa3xx_gcu_probe/remove functions.
Yes, a temporary workaround is available by manually applying the patch provided in commit 0de029454d42ad60d7f4234d84862d105a48c6d6 to the Linux Kernel. However, it is strongly advised to update to the latest Kernel version as soon as possible.
For more information about this vulnerability, you can refer to the source link: https://github.com/cloudsecurityalliance/gsd-database/blob/main/2022/1003xxx/GSD-2022-1003947.json
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