Last year, we covered the first known Rowhammer attack on GPUs, dubbed “GPUHammer,” which proved that VRAM is also susceptible to bit flips. At the time, our story focused on how GPUHammer can cripple an AI model’s accuracy from 80% to just 0.1% in an RTX A6000 with a single bit flip. Since then, two new Rowhammer attacks have surfaced that can gain root access to the CPU through your GPU, potentially compromising your entire system (story via Ars Technica).
These attacks are called “GDDRHammer” and…
