adv.(Packet).Field method stuck in an endless loop, if a specific bytes sequence is passed

[MetalRex101]

If I execute the code, it stuck in an endless loop.

func TestNewPacket(t *testing.T) {
    p := adv.NewRawPacket([]byte{0xff, 0x7f, 0xff, 0xff})
    p.ManufacturerData() // <- stuck here
}

Right now this happens, because

func (p *Packet) Field(typ byte) []byte {
    b := p.b
    for len(b) > 0 {
        if len(b) < 2 {
            return nil
        }
        l, t := b[0], b[1]
        if int(l) < 1 || len(b) < int(1+l) { // if l is 255, then uint8 255 + 1 will result in 0
            return nil
        }
        if t == typ {
            return b[2 : 2+l-1]
        }
        b = b[1+l:] // the same goes here. Since the sum is 0, it will take the whole package again
    }
    return nil
}