this post was submitted on 03 Apr 2026
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More GPUs are being tested, and the official website claims 25 NVIDIA GPUs were tested, with only a few showing signs of vulnerability. However, two mitigations exist. Enabling IOMMU through the BIOS closes the primary attack path by restricting which memory regions the GPU can access on the host system. This technology handles the translation of device-visible virtual addresses to physical host memory addresses and can completely fence off sensitive memory from peripheral devices. Another option is activating Error Correcting Codes on the GPU, which NVIDIA exposes through a command-line setting. However, enabling it reduces the pool of usable GPU memory and adds processing overhead, resulting in a performance penalty. Interestingly, no GPU with GDDR6X and GDDR7 memory is vulnerable, as the exploit only works with GDDR6.

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