New GPUBreach Attack Enables Full CPU Privilege Escalation via GDDR6 Bit-Flips

New academic research has identified multiple RowHammer attacks against high-performance graphics processing units (GPUs) that could be exploited to escalate privileges and, in some cases, even take full control of ahost. The efforts have beencodenamed GPUBreach, GDDRHammer,and GeForge. GPUBreach goes a step furtherthan GPUHammer, demonstrating for the first time that