Unprivileged CUDA kernels can use Rowhammer to tamper with GPU page tables for targeted privilege escalation, leaking cryptographic keys and escalating to CPU root access by bypassing IOMMU.
SMASH: Synchronized many-sided rowhammer attacks from JavaScript,
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PrISM uses a Sampled History Queue to correlate row samples across windows, solving the non-selection problem in probabilistic RowHammer mitigation and cutting slowdown from 10.7% to 1.5% at threshold 250 versus prior methods.
citing papers explorer
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GPUBreach: Privilege Escalation Attacks on GPUs using Rowhammer
Unprivileged CUDA kernels can use Rowhammer to tamper with GPU page tables for targeted privilege escalation, leaking cryptographic keys and escalating to CPU root access by bypassing IOMMU.
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Loaded Dice: Solving the Non-Selection Problem for Scalable Probabilistic RowHammer Defense
PrISM uses a Sampled History Queue to correlate row samples across windows, solving the non-selection problem in probabilistic RowHammer mitigation and cutting slowdown from 10.7% to 1.5% at threshold 250 versus prior methods.