Linux Kernel Vulnerability in MLX5 Driver Affects Device Performance

CVE-2023-53393

What is CVE-2023-53393?

A vulnerability in the MLX5 driver component of the Linux Kernel can cause a page fault when the mlx5_ib_get_hw_stats function is called for port_num = 0. This improper handling leads to a potential system crash, as the driver incorrectly assumes that port_num is always greater than or equal to 1. By modifying the port_num variable to 1, developers can ensure accurate device status retrieval and maintain stable system performance. Immediate updates are recommended to mitigate risks associated with this issue.

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