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cs.CR2026
GPUThor: Amplifying Rowhammer Attacks via Non-Uniform Patterns to Exploit ECC-Protected GPUs
Chris S. Lin, Joyce Qu, Aditya Rajeev +1
GDDR memory in GPUs is vulnerable to Rowhammer attacks, where rapid memory accesses induce bit flips in adjacent cells, enabling data tampering and privilege escalation. However, p…
cs.CR2026
AutoPRAC: Automating Attack Discovery for PRAC-Based Rowhammer Defenses using Model Checkers
Joyce Qu, Gururaj Saileshwar
Per-Row Activation Counting (PRAC) in DDR5 is a specification to mitigate Rowhammer attacks by tracking activations per row and triggering mitigative refreshes when needed. However…
cs.CR2026
GPUBreach: Privilege Escalation Attacks on GPUs using Rowhammer
Chris S. Lin, Yuqin Yan, Guozhen Ding +4
NVIDIA GPUs with GDDR memories have been shown susceptible to Rowhammer-based bit-flips, similar to CPUs. However, Rowhammer exploits on GPUs have been limited to injecting untarge…