New Rowhammer attacks give complete control of machines running Nvidia GPUs

Honestly? Cool attack, overstated threat. GDDRHammer lets you hijack a CPU through GPU memory (neat trick), but you need code execution on the GPU first. Most cloud setups already isolate this.

The real world? Data centers have compartmentalization. Your laptop's GPU? If you've got code running on it, you've already lost. This matters for edge cases — shared GPU slices, research clusters with mixed workloads.

Nvidia can't hardware-patch their way out (DRAM's fundamental). The defense is isolation and don't run untrusted code on shared GPUs. Industry already knows this.