Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Are We Susceptible to Rowhammer? An End-to-End Methodology for Cloud
  Providers   Cloud providers are concerned that Rowhammer poses a potentially critical
threat to their servers, yet today they lack a systematic way to test whether
the DRAM used in their servers is vulnerable to Rowhammer attacks. This paper
presents an end-to-end methodology to determine if cloud servers are
susceptible to these attacks. With our methodology, a cloud provider can
construct worst-case testing conditions for DRAM.
  We apply our methodology to three classes of servers from a major cloud
provider. Our findings show that none of the CPU instruction sequences used in
prior work to mount Rowhammer attacks create worst-case DRAM testing
conditions. To address this limitation, we develop an instruction sequence that
leverages microarchitectural side-effects to ``hammer'' DRAM at a near-optimal
rate on modern Intel Skylake and Cascade Lake platforms. We also design a DDR4
fault injector that can reverse engineer row adjacency for any DDR4 DIMM. When
applied to our cloud provider's DIMMs, we find that DRAM rows do not always
follow a linear map.

13
The categories of this paper are: quant-ph
31
The categories of this paper are: ao-sci
23
The categories of this paper are: solv-int
27
The categories of this paper are: comp-gas
30
The categories of this paper are: q-alg
19
The categories of this paper are: eess
20
The categories of this paper are: acc-phys
25
The categories of this paper are: patt-sol
11
The categories of this paper are: hep-lat
7
The categories of this paper are: hep-th
16
The categories of this paper are: stat
3
The categories of this paper are: physics
29
The categories of this paper are: funct-an
12
The categories of this paper are: nucl-th
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The categories of this paper are: adap-org
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The categories of this paper are: atom-ph