License: MIT License
Script to trigger (Rowhammer) bit flips on TRR-enabled DDR4 SDRAM through Firefox. Will only work with THP enabled and after having set the target-specific parameters (see comment in source).
The exploitation component (see paper) has been left out.
A demo is available here. The paper can be found here.
The src directory contains the source code of our native implementation. Please note: highly experimental and poorly documented.
Is the following error because of wrong configuration for the target machine or how can I fix it?
First huge page in ArrayBuffer is at 1 MB smash.js:694:9
Looking for first eviction set... smash.js:181:11
Done. 1454.66 s smash.js:64:13
Learning slice color of 100 huge pages... smash.js:236:11
Done. 1488.56 s smash.js:64:13
Verifying whether aggressors are self-evicting... smash.js:311:11
WARNING: aggressors are NOT self-evicting 10 smash.js:340:15
Aggressors are self-evicting smash.js:344:11
Done. 1488.97 s smash.js:64:13
Soft sync... (XORs, tREFI/t) smash.js:750:13
(1000, 3.28) smash.js:759:15
(1080, 3.39) smash.js:759:15
(1144, 3.26) smash.js:759:15
(1195, 3.28) smash.js:759:15
(1236, 3.15) smash.js:759:15
(1269, 2.75) smash.js:759:15
(1295, 2.69) smash.js:759:15
(1316, 2.72) smash.js:759:15
(1336, 2.70) smash.js:759:15
(1356, 2.64) smash.js:759:15
(1376, 2.57) smash.js:759:15
(1396, 2.62) smash.js:759:15
Uncaught TypeError: bufbuf32[(low >> 10)] is undefined
hammerBench file:///home/aasgarik/Desktop/Code/smash/smash.js:595
<anonymous> file:///home/aasgarik/Desktop/Code/smash/smash.js:756
smash.js:595:9
My system:
$ sudo cat /sys/kernel/mm/transparent_hugepage/enabled
[always] madvise never
$ sudo cat /etc/os-release
NAME="Ubuntu"
VERSION="20.04.2 LTS (Focal Fossa)"
ID=ubuntu
ID_LIKE=debian
PRETTY_NAME="Ubuntu 20.04.2 LTS"
VERSION_ID="20.04"
HOME_URL="https://www.ubuntu.com/"
SUPPORT_URL="https://help.ubuntu.com/"
BUG_REPORT_URL="https://bugs.launchpad.net/ubuntu/"
PRIVACY_POLICY_URL="https://www.ubuntu.com/legal/terms-and-policies/privacy-policy"
VERSION_CODENAME=focal
UBUNTU_CODENAME=focal
$ sudo lshw | grep DDR
description: DIMM DDR3 Synchronous 1866 MHz (0.5 ns)
description: DIMM DDR3 Synchronous 1866 MHz (0.5 ns)
$ firefox --version
Mozilla Firefox 90.0.2
In order to use this code I figured out I need to validate/write the ot* functions as well. Would you mind sharing a resource on how to reverse engineer those functions?
React
A declarative, efficient, and flexible JavaScript library for building user interfaces.
🖖 Vue.js is a progressive, incrementally-adoptable JavaScript framework for building UI on the web.
Typescript
TypeScript is a superset of JavaScript that compiles to clean JavaScript output.
An Open Source Machine Learning Framework for Everyone
Django
The Web framework for perfectionists with deadlines.
Laravel
A PHP framework for web artisans
Bring data to life with SVG, Canvas and HTML. 📊📈🎉
JavaScript (JS) is a lightweight interpreted programming language with first-class functions.
Some thing interesting about web. New door for the world.
A server is a program made to process requests and deliver data to clients.
Machine learning is a way of modeling and interpreting data that allows a piece of software to respond intelligently.
Some thing interesting about visualization, use data art
Some thing interesting about game, make everyone happy.
Facebook
We are working to build community through open source technology. NB: members must have two-factor auth.
Microsoft
Open source projects and samples from Microsoft.
Google
Google ❤️ Open Source for everyone.
Alibaba
Alibaba Open Source for everyone
D3
Data-Driven Documents codes.
Tencent
China tencent open source team.