alt Hacker NewsThe founder Joanna Rutkowska left QubesOS in 2018. All the code involved in this bug was committed by her successor Marek Marczykowski-Górecki.
Joanna seems to be a genuine good guy, she once wrote a paper titled "Intel x86 considered harmful". That's why Huawei and the Chinese government aren't even trying any more to make western CPU architectures secure, it's a hopeless cause.
Is there some evidence that x86 is uniquely prone to exploitable memory corruption? I haven't seen it, if so.
> That's why Huawei and the Chinese government aren't even trying any more to make western CPU architectures secure, it's a hopeless cause.
I suspect there are much more boring reasons for this, ranging from licensing to geopolitics (i.e., it being useful/valuable to have a domestic base of engineers who can design an ISA).