NULL Pointer Dereference in drm: mxsfb
Summary
GSD-2022-1000675: drm: mxsfb: Fix NULL pointer dereference. Affects Kernel versions >= b776b0f00f246d093c595bac4453c6e51541d5c5, < 6f9267e01cca749137349d8ffb0d0ebbadf567f4. No fix is published. How to fix ↓
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Background
The drm (Direct Rendering Manager) subsystem in the Linux Kernel is responsible for managing graphics hardware and providing an interface for user-space applications to access and control graphics devices. The mxsfb driver is a component of the drm subsystem that supports the framebuffer display controller found in certain Freescale i.MX SoCs. This driver allows for the configuration and control of the display output on these devices.
Vulnerability Detail
The vulnerability identified as GSD-2022-1000675 is a NULL pointer dereference issue in the mxsfb driver of the drm subsystem. A NULL pointer dereference occurs when a program attempts to access or manipulate data using a pointer that points to a NULL (invalid) memory address. In this case, the vulnerability can be triggered when certain operations are performed on the mxsfb driver, leading to a crash or potential system instability. 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 workaround has been provided for this vulnerability.
Conclusion
The NULL pointer dereference vulnerability in the drm mxsfb driver can be fixed by updating the Linux Kernel to version v5.16.8 or later. It is recommended to apply the necessary updates to ensure the security and stability of the system. For further support on vulnerability remediation, please contact DevNack.com.
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FAQ
A NULL pointer dereference occurs when a program attempts to access or manipulate data using a pointer that points to a NULL (invalid) memory address. This can lead to crashes or system instability.
The specific attack vectors and exploitation techniques for this vulnerability have not been proven yet. Further analysis is required to determine the potential impact.
The vulnerability was introduced in version v5.15 of the Linux Kernel and is fixed in version v5.16.8.
There is no known evidence of this vulnerability being exploited in the wild at this time.
You can find more information about this vulnerability in the GSD-2022-1000675 JSON file available at the following source: https://github.com/cloudsecurityalliance/gsd-database/blob/main/2022/1000xxx/GSD-2022-1000675.json
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