Hard to say yet, if Microsoft is responsible or not. The thing is they certified it, as a stable and tested driver. But it isn’t just a driver, but an interpreter/loader that loads code at runtime and executes it. In kernel mode. If Microsoft knew this they’re definitely responsible for certifying it, but maybe crowdstrike hid this behavior until it was deployed to the customers.
It was my understanding that this wasn’t certified. Crowdstrike circumvented the signing process.
The driver was signed, the issue was with a configuration file for that’s not part of the driver.
A configuration file shouldn’t crash the kernel. I don’t understand how this solution could pass the certification. I don’t know the criteria of course, but on the surface it sounds like Crowdstrike created a workaround, and Microsoft either missed or allowed it.