GPUThor Rowhammer Attack Defeats ECC on NVIDIA RTX A6000, Enables Root Access

Researchers at the University of Toronto disclosed GPUThor, a Rowhammer attack against NVIDIA workstation GPUs with GDDR6 memory that defeats error-correcting code (ECC), the mitigation NVIDIA recommends against GPU Rowhammer. The attack enables denial-of-service conditions and privilege escalation to a root shell.

The attack was demonstrated by hammering DRAM on an NVIDIA RTX A6000. No CVE identifier was included in the source summary.