--- a/media/mtransport/third_party/nICEr/src/stun/addrs.c
+++ b/media/mtransport/third_party/nICEr/src/stun/addrs.c
@@ -238,17 +238,19 @@ stun_get_win32_addrs(nr_local_addr addrs
       }
     }
 
    done:
     *count = n;
     _status = 0;
 
   abort:
-    RFREE(AdapterAddresses);
+    if (AdapterAddresses) {
+      RFREE(AdapterAddresses);
+    }
     return _status;
 }
 
 #else /* WIN32 */
 
 static int
 nr_stun_is_duplicate_addr(nr_local_addr addrs[], int count, nr_local_addr *addr);