write causing process crash

[varma08420]

Hi, I have been using uWebSockets for long time i=on Linux 7XX but currently moved to 8XX, i have compiled code on 8XX platform started the http server, but my process getting crashes while sending response through write method. i am using /uWebSockets-0.16.0b1/src/App.h

==108692==ERROR: AddressSanitizer: heap-use-after-free on address 0x6110001800e4 at pc 0x0000004ced53 bp 0x7f0b96dd9d70 sp 0x7f0b96dd9d60
READ of size 4 at 0x6110001800e4 thread T42
#0 0x4ced52 in uWS::HttpResponse::writeStatus(std::basic_string_view<char, std::char_traits >) third_party/uWS/include/HttpResponse.h:180
#1 0x4cd0a2 in uWS::HttpResponse::write(std::basic_string_view<char, std::char_traits >) third_party/uWS/include/HttpResponse.h:226
#2 0x4c2416 in RtLIX1Handler::rtSendRespToLim(RtLIX1RespData, uWS::HttpResponse, RtDBOpData, std::vector<RtLITargetData, std::allocator >) RtLIX1Handler/src/RtLIX1Handler.cpp:2465
#3 0x4cb9eb in RtLIX1Handler::rtHandleFileDumpResponse(RtLIX1RespData*) RtLIX1Handler/src/RtLIX1Handler.cpp:3550
#4 0x4b477d in RtLIX1Handler::rtHandleTransactionRequest(RtHttpRequestData*) RtLIX1Handler/src/RtLIX1Handler.cpp:1288
#5 0x4aaa65 in RtLIX1Handler::rtRun() RtLIX1Handler/src/RtLIX1Handler.cpp:297
#6 0x4a0f8b in RtBaseThread::rtStartFunc(void*) RtBaseThread/include/RtBaseThread.hpp:610
#7 0x7f0bdc4fb149 in start_thread (/lib64/libpthread.so.0+0x8149)
#8 0x7f0bda027dc2 in __clone (/lib64/libc.so.6+0xfcdc2)

0x6110001800e4 is located 228 bytes inside of 240-byte region [0x611000180000,0x6110001800f0)
freed by thread T46 here:
#0 0x7f0be12ff7e0 in __interceptor_free (/lib64/libasan.so.5+0xef7e0)
#1 0x585c4a in us_loop_run src/eventing/epoll.c:88

previously allocated by thread T46 here:
#0 0x7f0be12ffba8 in __interceptor_malloc (/lib64/libasan.so.5+0xefba8)
#1 0x585796 in us_loop_run src/eventing/epoll.c:61
#2 0x3a14101400020523 ()

Thread T42 created by T0 here:
#0 0x7f0be1262ea3 in __interceptor_pthread_create (/lib64/libasan.so.5+0x52ea3)
#1 0x49f100 in RtBaseThread::rtThreadStart() RtBaseThread/include/RtBaseThread.hpp:273
#2 0x493ab6 in RtLIX1Mgr::rtInitialize(char*, unsigned int) RtLIX1Mgr/src/RtLIX1Mgr.cpp:275
#3 0x4783c5 in RtLIProcMgr::rtStartAppIntf(RtProcCurrentState&) RtLIProcMgr/src/RtLIProcMgr.cpp:577
#4 0x5294be in RtBaseCompMgr::rtStartProc(char*, unsigned int) /include/common//RtBaseCompMgr/include/RtBaseCompMgr.hpp:1155
#5 0x5274ce in main main.cpp:847
#6 0x7f0bd9f4e492 in __libc_start_main (/lib64/libc.so.6+0x23492)

Thread T46 created by T0 here:
#0 0x7f0be1262ea3 in __interceptor_pthread_create (/lib64/libasan.so.5+0x52ea3)
#1 0x49f100 in RtBaseThread::rtThreadStart() RtBaseThread/include/RtBaseThread.hpp:273
#2 0x4d7756 in RtLIHttpHandler::rtInitialize(unsigned int, char*, unsigned int) RtLIHttpHandler/src/RtLIHttpHandler.cpp:158
#3 0x494183 in RtLIX1Mgr::rtInitialize(char*, unsigned int) RtLIX1Mgr/src/RtLIX1Mgr.cpp:330
#4 0x4783c5 in RtLIProcMgr::rtStartAppIntf(RtProcCurrentState&) RtLIProcMgr/src/RtLIProcMgr.cpp:577
#5 0x5294be in RtBaseCompMgr::rtStartProc(char*, unsigned int) /include/common//RtBaseCompMgr/include/RtBaseCompMgr.hpp:1155
#6 0x5274ce in main main.cpp:847
#7 0x7f0bd9f4e492 in __libc_start_main (/lib64/libc.so.6+0x23492)

SUMMARY: AddressSanitizer: heap-use-after-free third_party/uWS/include/HttpResponse.h:180 in uWS::HttpResponse::writeStatus(std::basic_string_view<char, std::char_traits >)
Shadow bytes around the buggy address:
0x0c2280027fc0: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa
0x0c2280027fd0: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa
0x0c2280027fe0: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa
0x0c2280027ff0: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa
0x0c2280028000: fd fd fd fd fd fd fd fd fd fd fd fd fd fd fd fd
=>0x0c2280028010: fd fd fd fd fd fd fd fd fd fd fd fd[fd]fd fa fa
0x0c2280028020: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa
0x0c2280028030: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa
0x0c2280028040: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa
0x0c2280028050: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa
0x0c2280028060: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa
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
==108692==ABORTING