ARM: davinci: da850-evm: Avoid NULL pointer dereference in Kernel
Summary
GSD-2022-1002292: ARM: davinci: da850-evm: Avoid NULL pointer dereference. Affects Kernel versions >= bae105879f2f2404155da6f50b3636193d228a62, < c64e2ed5cc376e137e572babfd2edc38b2cfb61b. No fix is published. How to fix ↓
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Background
The Kernel is a critical component of the Linux operating system that provides core functionality and acts as an interface between the hardware and software layers. It manages system resources, handles device drivers, and facilitates communication between different software components. The ARM davinci da850-evm platform is supported by the Kernel and is commonly used in embedded systems. The da850-evm board is based on the Texas Instruments DaVinci DM355 SoC and is used in various applications such as industrial automation, automotive, and multimedia devices. However, a vulnerability has been identified in the Kernel for the da850-evm platform that could lead to a NULL pointer dereference.
Vulnerability Detail
The vulnerability in the ARM davinci da850-evm platform arises from a NULL pointer dereference. This occurs when a program attempts to access or manipulate data using a pointer that points to NULL, resulting in a crash or unexpected behavior. An attacker could potentially exploit this vulnerability to cause a denial-of-service (DoS) condition or execute arbitrary code with kernel privileges. The vulnerability was introduced in version v2.6.33 of the Linux Kernel and has been fixed in version v4.19.239 by commit c64e2ed5cc376e137e572babfd2edc38b2cfb61b.
How To Fix
No fixed version is published for this vulnerability.
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Workaround
As a workaround, users can apply patches or backports provided by the Linux distribution they are using. These patches may address the specific vulnerability and can be applied without updating the entire Kernel. It is important to follow the instructions provided by the Linux distribution to ensure proper application of the patches.
Conclusion
The vulnerability in the ARM davinci da850-evm platform that leads to a NULL pointer dereference in the Kernel can have serious security implications. It is crucial to update the Kernel to the fixed version or apply the necessary patches provided by the Linux distribution. For further support and assistance in vulnerability remediation, you can reach out to 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 NULL. This can lead to a crash or unexpected behavior.
The vulnerability in the ARM davinci da850-evm platform could potentially be exploited by an attacker to cause a denial-of-service (DoS) condition or execute arbitrary code with kernel privileges.
To fix the vulnerability, it is recommended to update the Linux Kernel to version v4.19.239 or later. Alternatively, users can apply patches or backports provided by their Linux distribution.
Yes, users can apply patches or backports provided by their Linux distribution as a workaround for this vulnerability.
For more information about this vulnerability, you can refer to the source link provided in the vulnerability details section.
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