A typical Linux system is largely comprised of unrestricted, open-source software. But some of the most popular software around is either closed-source or open-source, but restricted by patents.

Added support for mmap on DMABUF file descriptors exported from discrete NVIDIA GPUs.

Drivers for most standard computer hardware are included in the Linux kernel in Ubuntu. They are open-source and created by the community of Linux users, and some of them do not utilize the functions ...