When Abnormal Interruption，Could lead to use after free

[xlshaoscu]

Hi,All
I now use v0.17.3 uWebSockets, when the websockets interruption,meet the UAF,so I upgrade to 20.0.0 uWebSockets。the question still exists and the problem is same。the asan output like this：
==51==ERROR: AddressSanitizer: heap-use-after-free on address 0xffff93337690 at pc 0xffffa8299868 bp 0xffffa5bf2e10 sp 0xffffa5bf2e30
READ of size 8 at 0xffff93337690 thread T2
#0 0xffffa8299867 in us_socket_context src/socket.c:51
#1 0xffffa826bd2f in uWS::WebSocket<true, true, MTS::PerSocketData>::send(std::basic_string_view<char, std::char_traits >, uWS::OpCode, bool) /usr1/workspace/sxl/MediaTransferService_NewVersion/build_script/../opensource/uWebSockets/ascend-ci/output/include/WebSocket.h:79
#2 0xffffa823c013 in operator() /usr1/workspace/sxl/MediaTransferService_NewVersion/build_script/../src/cpp/Server/WSockectManager.cpp:495
#3 0xffffa823c013 in __invoke_impl<void, MTS::WSockectManager::SendData(int, std::__cxx11::string&)::<lambda()>&> /usr/include/c++/7/bits/invoke.h:60
#4 0xffffa823c013 in __invoke<MTS::WSockectManager::SendData(int, std::__cxx11::string&)::<lambda()>&> /usr/include/c++/7/bits/invoke.h:95
#5 0xffffa823c013 in invoke<MTS::WSockectManager::SendData(int, std::__cxx11::string&)::<lambda()>&> /usr/include/c++/7/functional:80
#6 0xffffa823c013 in call /usr1/workspace/sxl/MediaTransferService_NewVersion/build_script/../opensource/uWebSockets/ascend-ci/output/include/MoveOnlyFunction.h:152
#7 0xffffa82510ef in ofats::any_detail::any_invocable_impl<void, false>::call() /usr1/workspace/sxl/MediaTransferService_NewVersion/build_script/../opensource/uWebSockets/ascend-ci/output/include/MoveOnlyFunction.h:247
#8 0xffffa82510ef in ofats::any_invocable<void ()>::operator()() /usr1/workspace/sxl/MediaTransferService_NewVersion/build_script/../opensource/uWebSockets/ascend-ci/output/include/MoveOnlyFunction.h:354
#9 0xffffa82510ef in uWS::Loop::wakeupCb(us_loop_t*) /usr1/workspace/sxl/MediaTransferService_NewVersion/build_script/../opensource/uWebSockets/ascend-ci/output/include/Loop.h:41
#10 0xffffa82a0c17 in us_internal_dispatch_ready_poll src/loop.c:197
#11 0xffffa82a1713 in us_loop_run src/eventing/epoll_kqueue.c:147
#12 0xffffa82495bf in uWS::Loop::run() /usr1/workspace/sxl/MediaTransferService_NewVersion/build_script/../opensource/uWebSockets/ascend-ci/output/include/Loop.h:166
#13 0xffffa82495bf in uWS::run() /usr1/workspace/sxl/MediaTransferService_NewVersion/build_script/../opensource/uWebSockets/ascend-ci/output/include/Loop.h:183
#14 0xffffa82495bf in uWS::TemplatedApp::run() /usr1/workspace/sxl/MediaTransferService_NewVersion/build_script/../opensource/uWebSockets/ascend-ci/output/include/App.h:393
#15 0xffffa82495bf in MTS::WSockectManager::StartWsServer() /usr1/workspace/sxl/MediaTransferService_NewVersion/build_script/../src/cpp/Server/WSockectManager.cpp:345
#16 0xffffa783b1bb (/usr/lib64/libstdc++.so.6+0xbe1bb)
#17 0xffffb60317af (/usr/lib64/libpthread.so.0+0x87af)
#18 0xffffb5e7521b (/usr/lib64/libc.so.6+0xd521b)

0xffff93337690 is located 16 bytes inside of 201-byte region [0xffff93337680,0xffff93337749)
freed by thread T2 here:
#0 0xffffb64ccb37 in free (/home/mts/lib/libasan.so.4+0xcfb37)
#1 0xffffa829e15b in us_internal_free_closed_sockets src/loop.c:162
#2 0xffffa829e1bb in us_internal_loop_post src/loop.c:185
#3 0xffffa82a16bf in us_loop_run src/eventing/epoll_kqueue.c:152
#4 0xffffa82495bf in uWS::Loop::run() /usr1/workspace/sxl/MediaTransferService_NewVersion/build_script/../opensource/uWebSockets/ascend-ci/output/include/Loop.h:166
#5 0xffffa82495bf in uWS::run() /usr1/workspace/sxl/MediaTransferService_NewVersion/build_script/../opensource/uWebSockets/ascend-ci/output/include/Loop.h:183
#6 0xffffa82495bf in uWS::TemplatedApp::run() /usr1/workspace/sxl/MediaTransferService_NewVersion/build_script/../opensource/uWebSockets/ascend-ci/output/include/App.h:393
#7 0xffffa82495bf in MTS::WSockectManager::StartWsServer() /usr1/workspace/sxl/MediaTransferService_NewVersion/build_script/../src/cpp/Server/WSockectManager.cpp:345
#8 0xffffa783b1bb (/usr/lib64/libstdc++.so.6+0xbe1bb)
#9 0xffffb60317af (/usr/lib64/libpthread.so.0+0x87af)
#10 0xffffb5e7521b (/usr/lib64/libc.so.6+0xd521b)

previously allocated by thread T2 here:
#0 0xffffb64cd2a3 in __interceptor_realloc (/home/mts/lib/libasan.so.4+0xd02a3)
#1 0xffffa829dfd3 in us_poll_resize src/eventing/epoll_kqueue.c:208
#2 0xffffa82a1847 in us_socket_context_adopt_socket src/context.c:264
#3 0xffffa826809b in void uWS::HttpResponse::upgradeMTS::PerSocketData(MTS::PerSocketData&&, std::basic_string_view<char, std::char_traits >, std::basic_string_view<char, std::char_traits >, std::basic_string_view<char, std::char_traits >, us_socket_context_t*) /usr1/workspace/sxl/MediaTransferService_NewVersion/build_script/../opensource/uWebSockets/ascend-ci/output/include/HttpResponse.h:285
#4 0xffffa826a7ff in ZZN3uWS12TemplatedAppILb1EE2wsIN3MTS13PerSocketDataEEEOS1_NSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEEONS1_17WebSocketBehaviorIT_EEENUlPSD_PT0_E0_clINS_12HttpResponseILb1EEENS_11HttpRequestEEEDaSG_SI /usr1/workspace/sxl/MediaTransferService_NewVersion/build_script/../opensource/uWebSockets/ascend-ci/output/include/App.h:276
#5 0xffffa826a7ff in void std::__invoke_impl<void, uWS::TemplatedApp&& uWS::TemplatedApp::wsMTS::PerSocketData(std::__cxx11::basic_string<char, std::char_traits, std::allocator >, uWS::TemplatedApp::WebSocketBehaviorMTS::PerSocketData&&)::{lambda(auto:1*, auto:2*)#2}&, uWS::HttpResponse, uWS::HttpRequest>(std::__invoke_other, uWS::TemplatedApp&& uWS::TemplatedApp::wsMTS::PerSocketData(std::__cxx11::basic_string<char, std::char_traits, std::allocator >, uWS::TemplatedApp::WebSocketBehaviorMTS::PerSocketData&&)::{lambda(auto:1*, auto:2*)#2}&, uWS::HttpResponse&&, uWS::HttpRequest&&) /usr/include/c++/7/bits/invoke.h:60
#6 0xffffa826a7ff in std::__invoke_result<uWS::TemplatedApp&& uWS::TemplatedApp::wsMTS::PerSocketData(std::__cxx11::basic_string<char, std::char_traits, std::allocator >, uWS::TemplatedApp::WebSocketBehaviorMTS::PerSocketData&&)::{lambda(auto:1*, auto:2*)#2}&, uWS::HttpResponse, uWS::HttpRequest>::type std::__invoke<uWS::TemplatedApp&& uWS::TemplatedApp::wsMTS::PerSocketData(std::__cxx11::basic_string<char, std::char_traits, std::allocator >, uWS::TemplatedApp::WebSocketBehaviorMTS::PerSocketData&&)::{lambda(auto:1*, auto:2*)#2}&, uWS::HttpResponse, uWS::HttpRequest>(uWS::TemplatedApp&& uWS::TemplatedApp::wsMTS::PerSocketData(std::__cxx11::basic_string<char, std::char_traits, std::allocator >, uWS::TemplatedApp::WebSocketBehaviorMTS::PerSocketData&&)::{lambda(auto:1*, auto:2*)#2}&, (std::__invoke_result&&)...) /usr/include/c++/7/bits/invoke.h:95
#7 0xffffa826a7ff in std::invoke_result<uWS::TemplatedApp&& uWS::TemplatedApp::wsMTS::PerSocketData(std::__cxx11::basic_string<char, std::char_traits, std::allocator >, uWS::TemplatedApp::WebSocketBehaviorMTS::PerSocketData&&)::{lambda(auto:1*, auto:2*)#2}&, uWS::HttpResponse, uWS::HttpRequest>::type std::invoke<uWS::TemplatedApp&& uWS::TemplatedApp::wsMTS::PerSocketData(std::__cxx11::basic_string<char, std::char_traits, std::allocator >, uWS::TemplatedApp::WebSocketBehaviorMTS::PerSocketData&&)::{lambda(auto:1*, auto:2*)#2}&, uWS::HttpResponse, uWS::HttpRequest>(uWS::TemplatedApp&& uWS::TemplatedApp::wsMTS::PerSocketData(std::__cxx11::basic_string<char, std::char_traits, std::allocator >, uWS::TemplatedApp::WebSocketBehaviorMTS::PerSocketData&&)::{lambda(auto:1*, auto:2*)#2}&, (std::invoke_result&&)...) /usr/include/c++/7/functional:80
#8 0xffffa826a7ff in ofats::any_detail::handler_traits<void, uWS::HttpResponse, uWS::HttpRequest>::large_handler<uWS::TemplatedApp&& uWS::TemplatedApp::wsMTS::PerSocketData(std::__cxx11::basic_string<char, std::char_traits, std::allocator >, uWS::TemplatedApp::WebSocketBehaviorMTS::PerSocketData&&)::{lambda(auto:1*, auto:2*)#2}>::call(ofats::any_detail::storage&, uWS::HttpResponse, uWS::HttpRequest) /usr1/workspace/sxl/MediaTransferService_NewVersion/build_script/../opensource/uWebSockets/ascend-ci/output/include/MoveOnlyFunction.h:152
#9 0xffffa826379f in ofats::any_detail::any_invocable_impl<void, false, uWS::HttpResponse, uWS::HttpRequest>::call(uWS::HttpResponse, uWS::HttpRequest) /usr1/workspace/sxl/MediaTransferService_NewVersion/build_script/../opensource/uWebSockets/ascend-ci/output/include/MoveOnlyFunction.h:247
#10 0xffffa826379f in ofats::any_invocable<void (uWS::HttpResponse, uWS::HttpRequest)>::operator()(uWS::HttpResponse, uWS::HttpRequest) /usr1/workspace/sxl/MediaTransferService_NewVersion/build_script/../opensource/uWebSockets/ascend-ci/output/include/MoveOnlyFunction.h:354
#11 0xffffa826379f in ZZN3uWS11HttpContextILb1EE6onHttpENSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEES7_ON5ofats13any_invocableIFvPNS_12HttpResponseILb1EEEPNS_11HttpRequestEEEEbENUlPT_E_clINS_10HttpRouterINS_15HttpContextDataILb1EE10RouterDataEEEEEDaSJ /usr1/workspace/sxl/MediaTransferService_NewVersion/build_script/../opensource/uWebSockets/ascend-ci/output/include/HttpContext.h:417
#12 0xffffa826379f in bool std::__invoke_impl<bool, uWS::HttpContext::onHttp(std::__cxx11::basic_string<char, std::char_traits, std::allocator >, std::__cxx11::basic_string<char, std::char_traits, std::allocator >, ofats::any_invocable<void (uWS::HttpResponse, uWS::HttpRequest)>&&, bool)::{lambda(auto:1*)#1}&, uWS::HttpRouter<uWS::HttpContextData::RouterData>>(std::__invoke_other, uWS::HttpContext::onHttp(std::__cxx11::basic_string<char, std::char_traits, std::allocator >, std::__cxx11::basic_string<char, std::char_traits, std::allocator >, ofats::any_invocable<void (uWS::HttpResponse, uWS::HttpRequest*)>&&, bool)::{lambda(auto:1*)#1}&, uWS::HttpRouter<uWS::HttpContextData::RouterData>&&) /usr/include/c++/7/bits/invoke.h:60
#13 0xffffa826379f in std::__invoke_result<uWS::HttpContext::onHttp(std::__cxx11::basic_string<char, std::char_traits, std::allocator >, std::__cxx11::basic_string<char, std::char_traits, std::allocator >, ofats::any_invocable<void (uWS::HttpResponse, uWS::HttpRequest*)>&&, bool)::{lambda(auto:1*)#1}&, uWS::HttpRouter<uWS::HttpContextData::RouterData>>::type std::__invoke<uWS::HttpContext::onHttp(std::__cxx11::basic_string<char, std::char_traits, std::allocator >, std::__cxx11::basic_string<char, std::char_traits, std::allocator >, ofats::any_invocable<void (uWS::HttpResponse, uWS::HttpRequest*)>&&, bool)::{lambda(auto:1*)#1}&, uWS::HttpRouter<uWS::HttpContextData::RouterData>>(uWS::HttpContext::onHttp(std::__cxx11::basic_string<char, std::char_traits, std::allocator >, std::__cxx11::basic_string<char, std::char_traits, std::allocator >, ofats::any_invocable<void (uWS::HttpResponse, uWS::HttpRequest*)>&&, bool)::{lambda(auto:1*)#1}&, (std::__invoke_result&&)...) /usr/include/c++/7/bits/invoke.h:96
#14 0xffffa826379f in std::invoke_result<uWS::HttpContext::onHttp(std::__cxx11::basic_string<char, std::char_traits, std::allocator >, std::__cxx11::basic_string<char, std::char_traits, std::allocator >, ofats::any_invocable<void (uWS::HttpResponse, uWS::HttpRequest)>&&, bool)::{lambda(auto:1*)#1}&, uWS::HttpRouter<uWS::HttpContextData::RouterData>>::type std::invoke<uWS::HttpContext::onHttp(std::__cxx11::basic_string<char, std::char_traits, std::allocator >, std::__cxx11::basic_string<char, std::char_traits, std::allocator >, ofats::any_invocable<void (uWS::HttpResponse, uWS::HttpRequest*)>&&, bool)::{lambda(auto:1*)#1}&, uWS::HttpRouter<uWS::HttpContextData::RouterData>>(uWS::HttpContext::onHttp(std::__cxx11::basic_string<char, std::char_traits, std::allocator >, std::__cxx11::basic_string<char, std::char_traits, std::allocator >, ofats::any_invocable<void (uWS::HttpResponse, uWS::HttpRequest*)>&&, bool)::{lambda(auto:1*)#1}&, (std::invoke_result&&)...) /usr/include/c++/7/functional:81
#15 0xffffa826379f in ofats::any_detail::handler_traits<bool, uWS::HttpRouter<uWS::HttpContextData::RouterData>>::large_handler<uWS::HttpContext::onHttp(std::__cxx11::basic_string<char, std::char_traits, std::allocator >, std::__cxx11::basic_string<char, std::char_traits, std::allocator >, ofats::any_invocable<void (uWS::HttpResponse, uWS::HttpRequest*)>&&, bool)::{lambda(auto:1*)#1}>::call(ofats::any_detail::storage&, uWS::HttpRouter<uWS::HttpContextData::RouterData>) /usr1/workspace/sxl/MediaTransferService_NewVersion/build_script/../opensource/uWebSockets/ascend-ci/output/include/MoveOnlyFunction.h:153
#16 0xffffa8271ee7 in ofats::any_detail::any_invocable_impl<bool, false, uWS::HttpRouter<uWS::HttpContextData::RouterData>>::call(uWS::HttpRouter<uWS::HttpContextData::RouterData>) /usr1/workspace/sxl/MediaTransferService_NewVersion/build_script/../opensource/uWebSockets/ascend-ci/output/include/MoveOnlyFunction.h:247
#17 0xffffa8271ee7 in ofats::any_invocable<bool (uWS::HttpRouter<uWS::HttpContextData::RouterData>)>::operator()(uWS::HttpRouter<uWS::HttpContextData::RouterData>) /usr1/workspace/sxl/MediaTransferService_NewVersion/build_script/../opensource/uWebSockets/ascend-ci/output/include/MoveOnlyFunction.h:354
#18 0xffffa8271ee7 in uWS::HttpRouter<uWS::HttpContextData::RouterData>::executeHandlers(uWS::HttpRouter<uWS::HttpContextData::RouterData>::Node, int, uWS::HttpContextData::RouterData&) /usr1/workspace/sxl/MediaTransferService_NewVersion/build_script/../opensource/uWebSockets/ascend-ci/output/include/HttpRouter.h:176
#19 0xffffa82725c7 in uWS::HttpRouter<uWS::HttpContextData::RouterData>::route(std::basic_string_view<char, std::char_traits >, std::basic_string_view<char, std::char_traits >) /usr1/workspace/sxl/MediaTransferService_NewVersion/build_script/../opensource/uWebSockets/ascend-ci/output/include/HttpRouter.h:223
#20 0xffffa82725c7 in uWS::HttpContext::init()::{lambda(us_socket_t*, char*, int)#3}::operator()(us_socket_t*, char*, int) const::{lambda(void*, uWS::HttpRequest*)#1}::operator()({lambda(us_socket_t*, char*, int)#3}, uWS::HttpRequest) const /usr1/workspace/sxl/MediaTransferService_NewVersion/build_script/../opensource/uWebSockets/ascend-ci/output/include/HttpContext.h:161
#21 0xffffa82725c7 in void* std::__invoke_impl<void*, uWS::HttpContext::init()::{lambda(us_socket_t*, char*, int)#3}::operator()(us_socket_t*, char*, int) const::{lambda(void*, uWS::HttpRequest*)#1}&, void*, uWS::HttpRequest>(std::__invoke_other, uWS::HttpContext::init()::{lambda(us_socket_t*, char*, int)#3}::operator()(us_socket_t*, char*, int) const::{lambda(void*, uWS::HttpRequest*)#1}&, void*&&, uWS::HttpRequest&&) /usr/include/c++/7/bits/invoke.h:60
#22 0xffffa82725c7 in std::__invoke_result<uWS::HttpContext::init()::{lambda(us_socket_t*, char*, int)#3}::operator()(us_socket_t*, char*, int) const::{lambda(void*, uWS::HttpRequest*)#1}&, {lambda(us_socket_t*, char*, int)#3}, uWS::HttpRequest>::type std::__invoke<uWS::HttpContext::init()::{lambda(us_socket_t*, char*, int)#3}::operator()(us_socket_t*, char*, int) const::{lambda(void*, uWS::HttpRequest*)#1}&, {lambda(us_socket_t*, char*, int)#3}, uWS::HttpRequest>(uWS::HttpContext::init()::{lambda(us_socket_t*, char*, int)#3}::operator()(us_socket_t*, char*, int) const::{lambda(void*, uWS::HttpRequest*)#1}&, (std::__invoke_result&&)...) /usr/include/c++/7/bits/invoke.h:96
#23 0xffffa82725c7 in std::invoke_result<uWS::HttpContext::init()::{lambda(us_socket_t*, char*, int)#3}::operator()(us_socket_t*, char*, int) const::{lambda(void*, uWS::HttpRequest*)#1}&, {lambda(us_socket_t*, char*, int)#3}, uWS::HttpRequest>::type std::invoke<uWS::HttpContext::init()::{lambda(us_socket_t*, char*, int)#3}::operator()(us_socket_t*, char*, int) const::{lambda(void*, uWS::HttpRequest*)#1}&, {lambda(us_socket_t*, char*, int)#3}, uWS::HttpRequest>(uWS::HttpContext::init()::{lambda(us_socket_t*, char*, int)#3}::operator()(us_socket_t*, char*, int) const::{lambda(void*, uWS::HttpRequest*)#1}&, (std::invoke_result&&)...) /usr/include/c++/7/functional:81
#24 0xffffa82725c7 in ofats::any_detail::handler_traits<void*, void*, uWS::HttpRequest*>::small_handler<uWS::HttpContext::init()::{lambda(us_socket_t*, char*, int)#3}::operator()(us_socket_t*, char*, int) const::{lambda(void*, uWS::HttpRequest*)#1}>::call(ofats::any_detail::storage&, void*, uWS::HttpRequest*) /usr1/workspace/sxl/MediaTransferService_NewVersion/build_script/../opensource/uWebSockets/ascend-ci/output/include/MoveOnlyFunction.h:134
#25 0xffffa8260c87 in ofats::any_detail::any_invocable_impl<void*, false, void*, uWS::HttpRequest*>::call(void*, uWS::HttpRequest*) /usr1/workspace/sxl/MediaTransferService_NewVersion/build_script/../opensource/uWebSockets/ascend-ci/output/include/MoveOnlyFunction.h:247
#26 0xffffa8260c87 in ofats::any_invocable<void* (void*, uWS::HttpRequest*)>::operator()(void*, uWS::HttpRequest*) /usr1/workspace/sxl/MediaTransferService_NewVersion/build_script/../opensource/uWebSockets/ascend-ci/output/include/MoveOnlyFunction.h:354
#27 0xffffa8260c87 in std::pair<unsigned int, void*> uWS::HttpParser::fenceAndConsumePostPadded<0>(char*, unsigned int, void*, void*, uWS::HttpRequest*, ofats::any_invocable<void* (void*, uWS::HttpRequest*)>&, ofats::any_invocable<void* (void*, std::basic_string_view<char, std::char_traits >, bool)>&) /usr1/workspace/sxl/MediaTransferService_NewVersion/build_script/../opensource/uWebSockets/ascend-ci/output/include/HttpParser.h:253
#28 0xffffa8260c87 in uWS::HttpParser::consumePostPadded(char*, unsigned int, void*, void*, ofats::any_invocable<void* (void*, uWS::HttpRequest*)>&&, ofats::any_invocable<void* (void*, std::basic_string_view<char, std::char_traits >, bool)>&&, ofats::any_invocable<void* (void*)>&&) /usr1/workspace/sxl/MediaTransferService_NewVersion/build_script/../opensource/uWebSockets/ascend-ci/output/include/HttpParser.h:368
#29 0xffffa8265843 in uWS::HttpContext::init()::{lambda(us_socket_t*, char*, int)#3}::operator()(us_socket_t*, char*, int) const /usr1/workspace/sxl/MediaTransferService_NewVersion/build_script/../opensource/uWebSockets/ascend-ci/output/include/HttpContext.h:136
#30 0xffffa82a08e7 in ssl_on_data src/crypto/openssl.c:266
#31 0xffffa82a0ec3 in us_internal_dispatch_ready_poll src/loop.c:324
#32 0xffffa82a1713 in us_loop_run src/eventing/epoll_kqueue.c:147
#33 0xffffa82495bf in uWS::Loop::run() /usr1/workspace/sxl/MediaTransferService_NewVersion/build_script/../opensource/uWebSockets/ascend-ci/output/include/Loop.h:166
#34 0xffffa82495bf in uWS::run() /usr1/workspace/sxl/MediaTransferService_NewVersion/build_script/../opensource/uWebSockets/ascend-ci/output/include/Loop.h:183
#35 0xffffa82495bf in uWS::TemplatedApp::run() /usr1/workspace/sxl/MediaTransferService_NewVersion/build_script/../opensource/uWebSockets/ascend-ci/output/include/App.h:393
#36 0xffffa82495bf in MTS::WSockectManager::StartWsServer() /usr1/workspace/sxl/MediaTransferService_NewVersion/build_script/../src/cpp/Server/WSockectManager.cpp:345
#37 0xffffa783b1bb (/usr/lib64/libstdc++.so.6+0xbe1bb)
#38 0xffffb60317af (/usr/lib64/libpthread.so.0+0x87af)
#39 0xffffb5e7521b (/usr/lib64/libc.so.6+0xd521b)

Thread T2 created by T0 here:
#0 0xffffb64359a7 in pthread_create (/home/mts/lib/libasan.so.4+0x389a7)
#1 0xffffa783b503 in std::thread::_M_start_thread(std::unique_ptr<std::thread::_State, std::default_deletestd::thread::_State >, void ()()) (/usr/lib64/libstdc++.so.6+0xbe503)
#2 0xffffa823c383 in std::thread::thread<void (MTS::WSockectManager::)(), MTS::WSockectManager*>(void (MTS::WSockectManager::&&)(), MTS::WSockectManager&&) /usr/include/c++/7/thread:126
#3 0xffffa823c383 in std::_MakeUniqstd::thread::__single_object std::make_unique<std::thread, void (MTS::WSockectManager::)(), MTS::WSockectManager>(void (MTS::WSockectManager::&&)(), MTS::WSockectManager&&) /usr/include/c++/7/bits/unique_ptr.h:825
#4 0xffffa823c383 in MTS::WSockectManager::Start() /usr1/workspace/sxl/MediaTransferService_NewVersion/build_script/../src/cpp/Server/WSockectManager.cpp:243
#5 0xffffa828ab27 in MTS::WebSocketServer::Start() /usr1/workspace/sxl/MediaTransferService_NewVersion/build_script/../src/cpp/Server/WebSocketServer.cpp:44
#6 0xffffa823916b in MTS::SenderManager::Start() /usr1/workspace/sxl/MediaTransferService_NewVersion/build_script/../src/cpp/Server/SenderManager.cpp:33
#7 0xffffa81bf713 in MTS::Manager::Start() /usr1/workspace/sxl/MediaTransferService_NewVersion/build_script/../src/cpp/Manager/Manager.cpp:68
#8 0xffffa81c055f in MTS::Manager::Init() /usr1/workspace/sxl/MediaTransferService_NewVersion/build_script/../src/cpp/Manager/Manager.cpp:62
#9 0xffffa81a6f8b in Init /usr1/workspace/sxl/MediaTransferService_NewVersion/build_script/../src/cpp/Interface/Interface.cpp:63
#10 0xffffb33b1177 (/usr/lib64/libffi.so.7+0x6177)
#11 0xffffb33b076b (/usr/lib64/libffi.so.7+0x576b)
#12 0xffffb33ddf83 in _ctypes_callproc (/usr/lib64/python3.7/lib-dynload/_ctypes.cpython-37m-aarch64-linux-gnu.so+0x11f83)
#13 0xffffb33d715b (/usr/lib64/python3.7/lib-dynload/_ctypes.cpython-37m-aarch64-linux-gnu.so+0xb15b)
#14 0xffffb614c183 in _PyObject_FastCallKeywords (/usr/lib64/libpython3.7m.so.1.0+0x95183)
#15 0xffffb6129c2f in _PyEval_EvalFrameDefault (/usr/lib64/libpython3.7m.so.1.0+0x72c2f)
#16 0xffffb6122b6b (/usr/lib64/libpython3.7m.so.1.0+0x6bb6b)
#17 0xffffb612c2a7 in _PyEval_EvalFrameDefault (/usr/lib64/libpython3.7m.so.1.0+0x752a7)
#18 0xffffb62035bb in _PyEval_EvalCodeWithName (/usr/lib64/libpython3.7m.so.1.0+0x14c5bb)
#19 0xffffb62036ff in PyEval_EvalCodeEx (/usr/lib64/libpython3.7m.so.1.0+0x14c6ff)
#20 0xffffb620373b in PyEval_EvalCode (/usr/lib64/libpython3.7m.so.1.0+0x14c73b)
#21 0xffffb622e017 (/usr/lib64/libpython3.7m.so.1.0+0x177017)
#22 0xffffb6230787 in PyRun_FileExFlags (/usr/lib64/libpython3.7m.so.1.0+0x179787)
#23 0xffffb623092f in PyRun_SimpleFileExFlags (/usr/lib64/libpython3.7m.so.1.0+0x17992f)
#24 0xffffb624ce3b (/usr/lib64/libpython3.7m.so.1.0+0x195e3b)
#25 0xffffb624d17b in _Py_UnixMain (/usr/lib64/libpython3.7m.so.1.0+0x19617b)
#26 0xffffb5dc3f7f in __libc_start_main (/usr/lib64/libc.so.6+0x23f7f)
#27 0xaaaaea590923 in _start (/usr/bin/python3.7+0x923)

SUMMARY: AddressSanitizer: heap-use-after-free src/socket.c:51 in us_socket_context
Shadow bytes around the buggy address:
0x200ff2666e80: fd fd fd fd fd fd fd fd fd fd fd fd fd fd fd fd
0x200ff2666e90: fd fd fd fd fd fd fd fd fd fd fd fd fd fd fd fd
0x200ff2666ea0: fa fa fa fa fa fa fa fa fd fd fd fd fd fd fd fd
0x200ff2666eb0: fd fd fd fd fd fd fd fd fd fd fd fd fd fd fd fd
0x200ff2666ec0: fd fd fd fd fd fd fd fd fa fa fa fa fa fa fa fa
=>0x200ff2666ed0: fd fd[fd]fd fd fd fd fd fd fd fd fd fd fd fd fd
0x200ff2666ee0: fd fd fd fd fd fd fd fd fd fd fa fa fa fa fa fa
0x200ff2666ef0: fa fa fa fa fa fa fa fa fd fd fd fd fd fd fd fd
0x200ff2666f00: fd fd fd fd fd fd fd fd fd fd fd fd fd fd fd fd
0x200ff2666f10: fd fd fd fd fa fa fa fa fa fa fa fa fa fa fa fa
0x200ff2666f20: fd fd fd fd fd fd fd fd fd fd fd fd fd fd fd fd
Shadow byte legend (one shadow byte represents 8 application bytes):
Addressable: 00
Partially addressable: 01 02 03 04 05 06 07
Heap left redzone: fa
Freed heap region: fd
Stack left redzone: f1
Stack mid redzone: f2
Stack right redzone: f3
Stack after return: f5
Stack use after scope: f8
Global redzone: f9
Global init order: f6
Poisoned by user: f7
Container overflow: fc
Array cookie: ac
Intra object redzone: bb
ASan internal: fe
Left alloca redzone: ca
Right alloca redzone: cb
==51==ABORTING

who knows what this is

[ghost]

You are not handling on_close properly. You cannot use a socket after it has been closed.