Traffic leaks from the cellular when WIFI and cellular are opned at the same time;

[lupuliang]

1.Environment

FW Packkage=18601.5001.00.01.16.30
Enumeration Port：wwan0at0,wwan0at1,wwan0mbim0
OS: Ubuntu22.04.1
Test SIM Card: Unicom
Module IMEI: 863714050025511
ModemManager：1.19.1；
Libmbim:1.27.9
IOSM: 8.06.13
Kernel: 6.0

2. Test Steps

1). Open WIFI and connect available network;
2). Ping baidu.com always;
3). Send watch more /proc/net/dev to view WIFI traffic；
4). Insert SIM card;
5). Wait cellular connect successfully；
6). Send watch more /proc/net/dev to view WIFI and cellular traffic；

3. Expected Result

Traffic only takes alway WIFI channel when WIFI and cellular opened at the same time.

4. Actual Result

Traffic leaks from the cellular when WIFI and cellular are opned at the same time.