CVE-2019-16275

hostapd before 2.10 and wpa_supplicant before 2.10 allow an incorrect
indication of disconnection in certain situations because source address
validation is mishandled. This is a denial of service that should have been
prevented by PMF (aka management frame protection). The attacker must send
a crafted 802.11 frame from a location that is within the 802.11
communications range.
An attacker in radio range of the access point could inject a specially
constructed unauthenticated IEEE 802.11 frame to the access point to
cause associated stations to be disconnected and require a reconnection
to the network.