Preface: The NVIDIA Tesla R570 driver is used for various data center GPUs, including the NVIDIA A100 and NVIDIA V100. These GPUs are designed for high-performance computing, AI, and deep learning applications.

Background:

The CUDA software environment consists of three parts:

• CUDA Toolkit (libraries, runtime and tools) – User-mode SDK used to build CUDA applications
• CUDA driver – User-mode driver component used to run CUDA applications (for example, libcuda.so on Linux systems)
• NVIDIA GPU device driver – Kernel-mode driver component for NVIDIA GPUs

On Linux systems, the CUDA driver and kernel mode components are delivered together in the NVIDIA display driver package.

DxgkDdiEscape is a function used in Windows drivers, specifically within the DirectX graphics kernel subsystem. In Linux, a similar function to DxgkDdiEscape is ioctl (Input/Output Control).

The ioctl system call can indeed be a potential vector forIncorrect Authorization vulnerabilities if not implemented correctly.

Vulnerability details: NVIDIA GPU Display Driver for Linux contains a vulnerability which could allow an unprivileged attacker to escalate permissions. A successful exploit of this vulnerability might lead to code execution, denial of service, escalation of privileges, information disclosure, and data tampering.

Impact: Code execution, denial of service, escalation of privileges, information disclosure, and data tampering

Official announcement: Please see the link for details – https://nvidia.custhelp.com/app/answers/detail/a_id/5630