Making Use Of Intel MPX Extensions On Linux

[phoronix]

Phoronix: Making Use Of Intel MPX Extensions On Linux

Intel MPX memory protection aims to safeguard against buffer overflows in programs assuming you have a supported processor and software stack. Over at Intel's Open-Source Technology Center they published a guide this week on making use of Intel MPX under Linux...

http://www.phoronix.com/scan.php?page=news_item&px=Using-Intel-MPX-Linux

[Kemosabe]

Any chance any AMD processor will/does support it?

[CrystalGamma]

Given that this feature needs heavy software assistance, I wonder how it compares to just baking bounds checks into the code … all those bounds tables are bound (hah!) to have a significant space cost.

[mlau]

It's nice and all, but since it adds significant memory requirements and also inserts additional instructions (which are nops on <skylake, but still), I think this is more suited for debug rather than release builds.

[carewolf]

It's nice and all, but since it adds significant memory requirements and also inserts additional instructions (which are nops on <skylake, but still), I think this is more suited for debug rather than release builds.

Yes, it is more like a hardware accelerated sanitizer.

[whitecat]

It requires kernel 3.19, not 3.10.