PAGE404: Breaking GPU Isolation Through Hardware-assisted Page Migration
PAGE404 breaks GPU tenant isolation on NVIDIA Grace Hopper via hardware page migration, exposing a novel side channel in cache-coherent CPU-GPU architectures used for AI workloads.
Summary written by editorial AI · Source link below
arXiv:2610.20962v1 Announce Type: new Abstract: NVIDIA's Grace Hopper (GH200) superchip represents a new generation of heterogeneous computing, tightly integrating a 72-core Arm-based CPU with a Hopper GPU on a single module via a high-bandwidth, cache-coherent interconnect. By eliminating the conventional PCIe bottleneck for CPU-GPU data movement, this design establishes a unified memory domain that scales to the capacities demanded by generative AI and high-performance computing (HPC) workloa
Editorial Analysis
Multi-tenant GPU computing for AI workloads faces a new isolation-breaking side channel; enterprises sharing GPU infrastructure must reassess trust boundaries.
Verify GPU isolation controls in shared HPC/AI environments and monitor NVIDIA advisories for Grace Hopper page-migration mitigations.
A novel side-channel attack breaks GPU tenant isolation on NVIDIA's latest AI superchip — relevant for any shared AI compute infrastructure.
Forward-looking interpretation drafted by editorial AI under human review — not a reproduction of the source. See methodology.
External link — opens at arXiv Crypto & Security in a new tab.
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