Crash on iOS 14.5：nw_endpoint_flow_copy_path + 44

Hi，
Apps crashed when enter foreground and want to connect with server，since iOS 14.5 released on April 27。

Crash stack like this：

Monitor Type: Mach Exception
Exception Type: EXC_BAD_ACCESS (SIGSEGV)
Exception Codes: KERN_INVALID_ADDRESS at 0x0000000000000010
Crashed Thread: 40
Pthread id: 867350
Thread 40 Crashed:
0 libnetwork.dylib nw_endpoint_flow_copy_path + 44
1 libnetwork.dylib nw_endpoint_flow_copy_path + 40
2 libnetwork.dylib nw_endpoint_flow_connected + 320
3 libnetwork.dylib nw_flow_connected + 3668
4 libnetwork.dylib nw_socket_connect + 584
5 libnetwork.dylib nw_endpoint_flow_connect + 164
6 libnetwork.dylib nw_endpoint_flow_setup_protocols + 3272
7 libnetwork.dylib -[NWConcrete_nw_endpoint_flow startWithHandler:] + 3616
8 libnetwork.dylib nw_endpoint_handler_path_change + 10592
9 libnetwork.dylib nw_endpoint_handler_start + 1184
10 libnetwork.dylib __nw_connection_start_block_invoke + 1460
11 imeituan __innerBlockOnce_block_invoke (SCRCrashMonitor_GCD.mm:191)
12 libdispatch.dylib _dispatch_call_block_and_release + 32
13 libdispatch.dylib _dispatch_client_callout + 20
14 libdispatch.dylib _dispatch_lane_serial_drain + 620
15 libdispatch.dylib _dispatch_lane_invoke + 456
16 libdispatch.dylib _dispatch_workloop_invoke + 1680
17 libdispatch.dylib _dispatch_workloop_worker_thread + 764
18 libsystem_pthread.dylib _pthread_wqthread + 276
Enqueue thread backtrace:
0 imeituan innerBlockOnce (SCRCrashMonitor_GCD.mm:0)
1 imeituan _dispatch_async (SCRCrashMonitor_GCD.mm:0)
2 libnetwork.dylib nw_connection_start + 280
3 libnetwork.dylib tcp_connection_start + 1496
4 CFNetwork 0x0000000180b7c3bc + 168
5 CFNetwork 0x0000000180b79b80 + 2776
6 CFNetwork 0x0000000180b77918 + 1724
7 CoreFoundation _CFStreamOpen + 140
8 imeituan -[GCDAsyncSocket openStreams] (GCDAsyncSocket.m:6998)
9 imeituan __29-[GCDAsyncSocket didConnect:]_block_invoke330 (GCDAsyncSocket.m:2369)
10 imeituan __29-[GCDAsyncSocket didConnect:]_block_invoke_2 (GCDAsyncSocket.m:2396)
11 imeituan __innerBlockOnce_block_invoke (SCRCrashMonitor_GCD.mm:191)
12 libdispatch.dylib _dispatch_call_block_and_release + 32
13 libdispatch.dylib _dispatch_client_callout + 20
14 libdispatch.dylib _dispatch_lane_serial_drain + 620
15 libdispatch.dylib _dispatch_lane_invoke + 404
16 libdispatch.dylib _dispatch_workloop_worker_thread + 764
17 libsystem_pthread.dylib _pthread_wqthread + 276
18 libsystem_pthread.dylib start_wqthread + 8