High-Intensity Rowhammer Attack On GPUs Leveraging Non-uniform Hammering (U. of Toronto)

Researchers at the University of Toronto published a technical paper titled “GPUThor: Amplifying Rowhammer Attacks via Non-Uniform Patterns to Exploit ECC-Protected GPUs.” Abstract Excerpt “We present GPUThor, a high-intensity Rowhammer attack on NVIDIA GPUs leveraging non-uniform hammering. GPUThor reverse engineers GPU memory-access coalescing behavior to enable non-uniform hammering patterns on GPUs, that activate aggressor rows more intensely than decoy rows. Additionally, by identifying ref