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Related to How to know whether a RAM module is vulnerable to rowhammer before buying?, how can I check whether my already installed memory modules are susceptible to this attack, without having to use any Windows/Mac-only tools?

There's a PoC module for detecting Rowhammer, but it seems many people have had problems compiling it and the issue has gone cold (no response since October 2015).

8

The Exploiting the DRAM rowhammer bug to gain kernel privileges article linked to in @J.A.K.'s answer had a link to Google's rowhammer-test program for checking for this vulnerability on "Linux or Mac OS X" and "x86-32 or x86-64". It runs indefinitely, stopping only if it detects a bit flip. One forum post recommends running for at least 30 minutes before considering the RAM safe.

2

MemTest86* version 7 has a Rowhammer test, but it only works on systems with UEFI support.

* not to be confused with MemTest86+.

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