"Kernel SU" typically refers to the "Superuser" or "SuperSU" application and its associated binary that is used in the Android operating system. The term "kernel" here refers to the core part of the operating system, and "SU" stands for "Superuser."
In the context of Android, the kernel is the central component that manages the system's resources and acts as a bridge between the hardware and the software. The Superuser (SU) is a special user account with elevated privileges or permissions beyond those of regular users. In the Android ecosystem, gaining superuser access allows users to perform tasks that require elevated permissions, such as modifying system files or using certain apps that need root access.
SuperSU, developed by Chainfire, was a popular app that managed root access on Android devices. Users could install SuperSU after rooting their device, and the app would control which apps had access to root permissions. SuperSU has been largely deprecated, and Magisk has become a more popular alternative.
Magisk is another solution for managing root access on Android devices. It provides a systemless root method, allowing users to root their devices without modifying the system partition. Magisk has gained popularity because it allows users to pass SafetyNet checks, which are often used by apps like Google Pay and certain games to verify the integrity of the device.
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