Linux kernel runs under a special privileged mode as compared to user space applications.
Kernel runs in a protected memory space and it has access to entire hardware. This memory space and this privileged state collectively known as kernel space or kernel mode.
User space programs runs in a unprivileged mode and it has limited access to resources and hardware.
User space applications can not directly access to kernel memory but kernel has access to entire memory space.
Kernel runs in a protected memory space and it has access to entire hardware. This memory space and this privileged state collectively known as kernel space or kernel mode.
User space programs runs in a unprivileged mode and it has limited access to resources and hardware.
User space applications can not directly access to kernel memory but kernel has access to entire memory space.
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