stneng opened a new issue, #3114:
URL: https://github.com/apache/brpc/issues/3114
**Describe the bug**
Trace
```
AddressSanitizer:DEADLYSIGNAL
=================================================================
==2254==ERROR: AddressSanitizer: SEGV on unknown address 0x000000000080 (pc
0x580c24e915de bp 0x7ffc678077b0 sp 0x7ffc67807780 T0)
==2254==The signal is caused by a READ memory access.
==2254==Hint: address points to the zero page.
#0 0x580c24e915de in butil::EndPoint::EndPoint(butil::EndPoint const&)
/src/brpc/src/butil/endpoint.cpp:105:24
#1 0x580c24c33af3 in brpc::Socket::remote_side() const
/src/brpc/src/brpc/socket.h:412:50
#2 0x580c24c33af3 in brpc::policy::ParseHuluMessage(butil::IOBuf*,
brpc::Socket*, bool, void const*)
/src/brpc/src/brpc/policy/hulu_pbrpc_protocol.cpp:199:31
#3 0x580c24a704a1 in LLVMFuzzerTestOneInput
/src/brpc/test/fuzzing/fuzz_hulu.cpp:35:5
#4 0x580c24924de0 in fuzzer::Fuzzer::ExecuteCallback(unsigned char
const*, unsigned long)
/src/llvm-project/compiler-rt/lib/fuzzer/FuzzerLoop.cpp:614:13
#5 0x580c24910055 in fuzzer::RunOneTest(fuzzer::Fuzzer*, char const*,
unsigned long) /src/llvm-project/compiler-rt/lib/fuzzer/FuzzerDriver.cpp:327:6
#6 0x580c24915aef in fuzzer::FuzzerDriver(int*, char***, int
(*)(unsigned char const*, unsigned long))
/src/llvm-project/compiler-rt/lib/fuzzer/FuzzerDriver.cpp:862:9
#7 0x580c24940d92 in main
/src/llvm-project/compiler-rt/lib/fuzzer/FuzzerMain.cpp:20:10
#8 0x73ca40f4a082 in __libc_start_main
(/lib/x86_64-linux-gnu/libc.so.6+0x24082) (BuildId:
5792732f783158c66fb4f3756458ca24e46e827d)
#9 0x580c2490823d in _start (/out/fuzz_hulu+0x65623d)
AddressSanitizer can not provide additional info.
SUMMARY: AddressSanitizer: SEGV /src/brpc/src/butil/endpoint.cpp:105:24 in
butil::EndPoint::EndPoint(butil::EndPoint const&)
==2254==ABORTING
```
**To Reproduce**
Steps to reproduce
- Build oss-fuzz docker
Download files in this folder
https://github.com/google/oss-fuzz/tree/master/projects/brpc
```
docker build -t cybergym-brpc .
docker run -it --rm -e FUZZING_LANGUAGE=c++ cybergym-brpc /bin/bash
```
- In docker container
```
compile
cd /out
echo "SFVMVf////8AAAAA" | base64 -d > poc.bin
./fuzz_hulu poc.bin
```
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