CVE-2023-31022

What it actually does

NULL-pointer dereference in the kernel-mode display driver layer causes an immediate kernel panic or system crash, resulting in denial of service.

Why it matters to the business

Workstations and servers using affected NVIDIA GPUs can become unavailable without warning, halting workloads, virtual machines, and user sessions until reboot.

How an attack unfolds

An attacker with local access supplies specially crafted input to the GPU driver through graphics APIs or kernel interfaces, triggering the NULL dereference and forcing a crash; no remote vector or privilege escalation is involved.

How to fix it

Apply the latest NVIDIA GPU Display Driver updates for Windows and Linux as they become available from NVIDIA and downstream vendors; where updates are not yet released, consider disabling GPU acceleration or isolating affected systems until patches are obtained.

How to confirm the fix worked

Verify installed driver versions against vendor security bulletins; monitor system event logs and kernel crash dumps for references to the NVIDIA kernel-mode driver after applying updates.

Typical attack path

1. Obtain local user access on a system with an affected NVIDIA driver
2. Execute code or use an application that interacts with the GPU kernel driver
3. Send input that reaches the vulnerable code path causing the NULL dereference
4. Observe kernel panic and resulting denial of service

How to detect it

Review kernel crash dumps, system event logs, and NVIDIA driver logs for NULL dereference or display driver fault entries; correlate with recent local process activity around the time of crashes.

What your security team should do

• Track NVIDIA and OS-vendor driver release notes for fixes addressing this issue
• Prioritize deployment on high-value or internet-facing systems once patches are published
• Temporarily restrict untrusted local code execution on systems that cannot be updated immediately