Memory isolation is a critical property for system reliability, security, and safety. We demonstrate RowPress, a DRAM read disturbance phenomenon different from the well-known RowHammer. RowPress induces bitflips by keeping a DRAM row open for a long period of time instead of repeatedly opening and closing the row. We experimentally characterize RowPress bitflips, showing their widespread existence in commodity off-the-shelf DDR4 DRAM chips. We demonstrate RowPress bitflips in a real system that already has RowHammer protection, and propose effective mitigation techniques that protect DRAM against both RowHammer and RowPress.
@article{arxiv.2406.16153,
title = {RowPress Vulnerability in Modern DRAM Chips},
author = {Haocong Luo and Ataberk Olgun and A. Giray Yağlıkçı and Yahya Can Tuğrul and Steve Rhyner and Meryem Banu Cavlak and Joël Lindegger and Mohammad Sadrosadati and Onur Mutlu},
journal= {arXiv preprint arXiv:2406.16153},
year = {2024}
}
Comments
To Appear in IEEE MICRO Top Picks Special Issue (July-August 2024). arXiv admin note: substantial text overlap with arXiv:2306.17061