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arXiv · 2406.16153

RowPress Vulnerability in Modern DRAM Chips

Haocong Luo·Ataberk Olgun·A. Giray Yağlıkçı·Yahya Can Tuğrul·Steve Rhyner·Meryem Banu Cavlak·Joël Lindegger·Mohammad Sadrosadati·Onur Mutlu
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Abstract

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.

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Haocong Luo, Ataberk Olgun, A. Giray Yağlıkçı, Yahya Can Tuğrul, Steve Rhyner, Meryem Banu Cavlak, Joël Lindegger, Mohammad Sadrosadati, Onur Mutlu. 2024-06-23. RowPress Vulnerability in Modern DRAM Chips. https://arxiv.org/abs/2406.16153

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