Linux Enabling Shadow Stack Support For x32

[phoronix]

Phoronix: Linux Enabling Shadow Stack Support For x32

Back in Linux 6.6 the Shadow Stack support was finally merged as part of Intel's Control-flow Enforcement Technology (CET). This years-in-the-making effort allows for better defending against ROP attacks for newer generations of Intel processors. For Linux 6.10, Shadow Stack support is being extended to x32...

https://www.phoronix.com/news/Linux-x32-Shadow-Stacks

[aviallon]

I am actually deploying this ABI on my VMs and containers to reduce memory usage.
It is especially significant with interpreters and GC'd languages, like CPython and Go.

[milkylainen]

Slide mishap. Googling SS probably won't yield expected results.

[uxmkt]

Slide mishap. Googling SS probably won't yield expected results.

SS is the Stack Segment register. Clearly. ;^)

[tildearrow]

What happened? That discussion over dropping x32 seems to have been abandoned...