Anonymousabout 8 hours ago
Three independent research teams have demonstrated that Rowhammer — a decade-old memory attack previously confined to CPU DRAM — can be used to flip bits in Nvidia GPU memory, corrupt AI model weights, and in some cases gain full read/write access to a host system's CPU memory. The attacks affect GDDR6-equipped GPUs across Nvidia and AMD product lines, with mitigations like ECC imposing measurable performance costs, and newer memory standards (GDDR6X, GDDR7, HBM) appearing resistant so far.