5 ms·
How about undocumented instructions? Sandsifter[1] is an interesting project and the video from BlackHat[2] is a good watch. There's also a previous discussion
by gbrown_ 5y ago
How about undocumented instructions? Sandsifter[1] is an interesting project and the video from BlackHat[2] is a good watch. There's also a previous discussion of it on HN[3].
[1] https://github.com/Battelle/sandsifter https://github.com/Battelle/sandsifter
[2] https://www.youtube.com/watch?v=KrksBdWcZgQ https://www.youtube.com/watch?v=KrksBdWcZgQ
[3] https://news.ycombinator.com/item?id=18179212 https://news.ycombinator.com/item?id=18179212
- sandinmyjoints 5y agoVery cool project! Thanks for the pointer.
- da_big_ghey 5y agoyes and sansdifter are continue finding more, recent undocumented microcode modify instruction are find with it.
- stevemk14ebr 5y agoAlso see https://blog.can.ac/2021/03/22/speculating-x86-64-isa-with-one-weird-trick/ https://blog.can.ac/2021/03/22/speculating-x86-64-isa-with-o...
- gbrown_ 5y agoAh cool, seems I missed that when it appeared on HN a few weeks back. Thanks for the pointer.