NVIDIA has announced that users of a video card with a graphic processor using GDDR6 video memory will activate the error repair function at the system level to protect the device from Rowhammer.
Rowhammer is a hardware error due to the tight arrangement of memory cells. Rowhammer's attacks can lead to refusal to maintain, damage data or improve privileges. Security researchers NVIDIA reported that they had confirmed the reality of the Rowhammer attacks.
Experts have developed GPUHAMER – an attack method that allows you to change the bits in the memory of the graphics processor. It should be noted that Rowhammer attacks are possible on graphic processors, although they are less likely to be delayed and updated quickly on GDDR6.
According to the Bleeping computer portal, there is a reference to the NVIDIA report, the ECC code (error correction code) -The method of detecting and correcting errors in the data is transmitted to provide data integrity and prevent important errors in the operation of the graphic processor. For GPUs used in workstations and data processing centers, ECC is needed at the system level to prevent serious errors. But this can lead to slow down in calculation by using the machine and memory loss.