![]() ![]() ![]() Now the main problems remain the BIOS/UEFI of the computers, which is free to override what the operating system does, due to the exceedingly stupid System Management Mode invented by Intel, and the firmware for the auxiliary CPUs that may be used for unauthorized remote management in most Intel- and AMD-based computers.Īll closed-source kernel modules and a part of the firmware blobs (those that are for devices which have communication interfaces, especially wireless interfaces, and which may access directly the memory space without being blocked by a MMU under the control of the OS kernel) are major security risks, because they might be controlled by an attacker, with no means of detection by the user. With this new open-source kernel module from NVIDIA, the only closed-source kernel module used by a large number of Linux users is no longer so. So having the source for all the kernel modules is the main priority. ![]() The kernel can control what a user-mode program does and limit its access to any hardware resources or CPU time, but it cannot do anything against kernel modules that are executed in privileged mode. It is far more important to have open sources for all programs that are executed in privileged mode than to have the source for the programs that are executed in user mode. While this is not as good as an open-source GPU driver, it is nonetheless a significant progress, which cannot be dismissed as useless. ![]()
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