- Edited
I want to know if it is possible for an attacker to somehow get the fingerprint.
A hash is stored in TEE of the fingerprint. No root / kernel control can get useful stuff from here. But what about the actual process when the device is compromised and the user puts his finger in the sensor. Is the os able to actually see it?
Here already some stuff i found.:
https://source.android.com/security/authentication/fingerprint-hal
https://support.google.com/pixelphone/answer/6300638?hl=en