GPUThor Rowhammer attack beats ECC on NVIDIA workstation GPUs

University of Toronto researchers have developed a new Rowhammer technique named GPUThor that can overwhelm error-correcting memory on several NVIDIA workstation GPUs, enabling crashes and even privilege escalation to root. The attack produces up to 23,500 times more bit flips than the first GPU Rowhammer attack, bringing GPU attack rates close to those seen on …

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