Kernel Space
Noun · Development
Definitions
The protected memory and execution domain where the operating system kernel runs with full access to hardware and system resources. Code executing in kernel space can perform privileged operations that user-space applications cannot, which is why bugs there are especially dangerous.
In plain English: It is the highly privileged part of the computer where the operating system's core code runs.
Example: "That driver crash took down the whole node because it happened in kernel space, not in an isolated user process."