True in principle, while in the real world the devs didn't even inspect perms on those files or changed them deliberately to fix some access control issue witho

True in principle, while in the real world the devs didn't even inspect perms on those files or changed them deliberately to fix some access control issue without a second thought. Welcome to embedded software, where the product is ready when it passes the functional tests. In related news, I have seen at least two proprietary drivers which allowed userspace libraries to program the hardware without any kernel oversight, incuding things like DMA engines. Pointed it out to one vendor; "yeah, we guess it's not ideal, but you know, details of the hardware is our secret sauce and customers demand no binaries in the kernel because reasons, blah blah". I assume many of those embedded OpenGL implementations may work that way. Anyone with evidence to the contrary?