Fix UAF problem in wificond am: 67d87a0e7e am: 8c379c6367 am: 2a14223573 am: 3ab4e8d64e

Original change: https://googleplex-android-review.googlesource.com/c/platform/system/connectivity/wificond/+/13272731

MUST ONLY BE SUBMITTED BY AUTOMERGER

Change-Id: I3fb8dec9cdf65e45400db074def675eb6951c6a5