  The Hawking radiation of static, spherically symmetric, asymptotically flat
solutions in quadratic gravity, is here explored. The emitted fermions are
governed by the Dirac equation in the generalized uncertainty principle (GUP)
context, that probes the spacetime (quantum) nature. The Hawking thermal
spectrum is scrutinized out of the tunnelling method and the WKB procedure. The
Hawking flux is shown to vanish for small black holes, for a precise
combination of the GUP parameter and the coupling constants that drive the
gravitational interaction in quadratic gravity, yielding absolutely stable
black hole remnants.
