Null Pointer Dereference in drm/msm Package
Summary
GSD-2021-1002159: drm/msm: Fix null pointer dereference on pointer edp. Affects Kernel versions >= ab5b0107ccf3821a6837b0f2819270d6fa0b278f, < 2133c4fc8e1348dcb752f267a143fe2254613b34. No fix is published. How to fix ↓
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Background
The drm/msm package is a component of the Linux Kernel that provides support for graphics and display functionality on Qualcomm Snapdragon SoCs. It includes drivers for various display interfaces, such as HDMI, DisplayPort, and Embedded DisplayPort (eDP). The package is responsible for managing the communication between the kernel and the display hardware, enabling the rendering and output of graphics on compatible devices.
Vulnerability Detail
The vulnerability identified in the drm/msm package is a null pointer dereference on the 'edp' pointer. A null pointer dereference occurs when a program attempts to access or manipulate memory using a null pointer, resulting in a crash or potentially exploitable behavior. In this case, the vulnerability can be triggered when the 'edp' pointer is dereferenced without proper validation, leading to a null pointer dereference. 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
No specific workaround has been provided for this vulnerability.
Conclusion
In conclusion, the drm/msm package in the Linux Kernel is vulnerable to a null pointer dereference on the 'edp' pointer. To address this vulnerability, it is recommended to update the kernel to version v5.15 or later. No specific workaround has been provided. For further support on vulnerability remediation, you can contact DevNack.com.
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FAQ
A null pointer dereference occurs when a program attempts to access or manipulate memory using a null pointer. This can lead to crashes or potentially exploitable behavior.
The impact of this vulnerability is not yet proven. However, null pointer dereferences can potentially lead to crashes or other unexpected behavior in the affected software.
You can use tools like Vulert 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.
There is no known exploit for this vulnerability at the moment. However, it is always recommended to apply security patches and updates to mitigate potential risks.
You can find more information about this vulnerability in the Open Source Vulnerability database. The vulnerability ID is GSD-2021-1002159.
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