Iqela labaphandi abavela kwiYunivesithi yaseToronto lenze uhlaselo lweGPUBreach, olufana nohlaselo lweGDDRHammer kunye neGeForge olubhengezwe kutshanje, lusebenzisa indlela yeRowHammer ukonakalisa iibhithi zememori yevidiyo yeGDDR kunye nokonakalisa itafile yephepha lememori yeGPU. I-GPUBreach ivumela ukufikelela kwengcambu kwindawo ephambili yenkqubo ngokusebenzisa i-kernel yeCUDA engenamalungelo kwi-NVIDIA GPU.
Uphawu olulodwa lohlaselo kukukwazi kwalo ukusebenza nge-IOMMU evuliweyo. Ukuze idlule i-IOMMU, uhlaselo lonakalisa imeko yomqhubi we-kernel oyi-NVIDIA kwaye luqalise ukugcwala kwe-buffer, lubhala ngaphezulu umxholo wezakhiwo ze-kernel. Uhlaselo lukwaboniswa kusetyenziswa ilayibrari ye-cuPQC ukukhupha izitshixo zokubethela kwimemori ye-GPU, okukhawulezisa ukubalwa kwe-cryptographic ngokuzikhuphela kwi-GPU.
umthombo: opennet.ru
