31.05.2025 08:45

OpenAI’s o3 Model Uncovers Critical Vulnerability in Linux Kernel Module

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A significant vulnerability, identified as CVE-2025-37899, was recently discovered in the ksmbd module of the Linux kernel, enabling remote code execution at the kernel level through specially crafted packets.

The flaw has been addressed in Linux kernel updates starting from version 6.

The vulnerability was detected by OpenAI’s advanced AI model, o3, as reported on OpenNet.

The o3 model demonstrated remarkable capability by autonomously constructing a reasoning chain that considered parallel server connections and the use of data structures under various conditions.

Through this analysis, it pinpointed a critical issue in the code where a freed object remained accessible in a separate thread, creating a use-after-free vulnerability.


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Notably, the model identified the flaw independently, relying solely on a general prompt to scan the code for potential vulnerabilities. This breakthrough highlights the growing potential of AI-driven tools like o3 in enhancing cybersecurity by proactively identifying and mitigating risks in complex systems such as the Linux kernel.


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