Probabilistic Tracker Management Policies for Low-Cost and Scalable Rowhammer Mitigation

arXiv:2404.16256v1 Announce Type: new
Abstract: This paper focuses on mitigating DRAM Rowhammer attacks. In recent years, solutions like TRR have been deployed in DDR4 DRAM to track aggressor rows and then issue a mitigative action by refreshing neighboring victim rows. Unfortunately, such in-DRAM solutions are resource-constrained (only able to provision few tens of counters to track aggressor rows) and are prone to thrashing based attacks, that have been used to fool them. Secure alternatives for in-DRAM trackers require tens of …

action arxiv attacks cost cs.ar cs.cr dram issue low management mitigation policies resource rowhammer solutions track tracker victim