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NVLinkSideLink+5 more
SideLink: The NVLink Fabric Tying Your AI Cluster Together Has a Covert Channel
Researchers at IIT Jodhpur turned ordinary wire contention on NVIDIA's NVLink into a working covert channel and a workload fingerprinting attack that hits 93% accuracy on a shared DGX A100. NVLink was engineered for bandwidth, not isolation, and it shows.
Sep 15, 20260