NULL pointer dereference crash on unload in drm: mxsfb
Summary
GSD-2021-1001835: drm: mxsfb: Fix NULL pointer dereference crash on unload. Affects Kernel versions >= ae1ed0093281939b80664a687689f12436c0e874, < f40c2281d2c0674d32ba732fee45222d76495472. No fix is published. How to fix ↓
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Background
The drm: mxsfb package is a component of the Linux Kernel, which is responsible for managing display and graphics functionality. It provides support for the MXSFB display controller found in certain hardware platforms. The package allows for the configuration and control of the display controller, enabling the rendering of graphics and images on connected displays.
Vulnerability Detail
The vulnerability in drm: mxsfb involves a NULL pointer dereference crash that can occur during the unload process. When unloading the mxsfb driver, a NULL pointer is accessed, leading to a crash. This vulnerability can be triggered by an attacker with local access to the system or through a maliciously crafted input. The impact of this vulnerability includes a denial of service (DoS) condition, where the system becomes unresponsive or crashes. The vulnerability was introduced in version v5.10 of the Linux Kernel and has been fixed in version v5.10.76.
How To Fix
No fixed version is published for this vulnerability.
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Workaround
There is no known workaround for this vulnerability. It is essential to apply the provided fix by updating the Linux Kernel to the recommended version.
Conclusion
The NULL pointer dereference crash on unload vulnerability in drm: mxsfb can lead to a denial of service (DoS) condition. It is crucial to update the Linux Kernel to version v5.10.76 or later to mitigate this vulnerability. For further support on vulnerability remediation, please contact DevNack.com.
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FAQ
The vulnerability can lead to a denial of service (DoS) condition, causing the system to become unresponsive or crash.
An attacker with local access to the system or through a maliciously crafted input can exploit this vulnerability.
To fix this vulnerability, update the Linux Kernel to version v5.10.76 or later.
No, there is no known workaround for this vulnerability. It is crucial to apply the provided fix by updating the Linux Kernel.
Users can obtain the updated Linux Kernel from the official Linux Kernel repository or through their respective Linux distribution's package management system.
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