ci: disable _FORTIFY_SOURCE with MSAN

Author: fanquake

ci/test/00_setup_env_native_fuzz_with_msan.sh

@@ -17,7 +17,8 @@ export PACKAGES="ninja-build"
 # BDB generates false-positives and will be removed in future
 export DEP_OPTS="DEBUG=1 NO_BDB=1 NO_QT=1 CC=clang CXX=clang++ CFLAGS='${MSAN_FLAGS}' CXXFLAGS='${MSAN_AND_LIBCXX_FLAGS}'"
 export GOAL="install"
-export BITCOIN_CONFIG="--enable-fuzz --with-sanitizers=fuzzer,memory --disable-hardening CPPFLAGS='-DBOOST_MULTI_INDEX_ENABLE_SAFE_MODE'"
+# _FORTIFY_SOURCE is not compatible with MSAN.
+export BITCOIN_CONFIG="--enable-fuzz --with-sanitizers=fuzzer,memory CPPFLAGS='-DBOOST_MULTI_INDEX_ENABLE_SAFE_MODE -U_FORTIFY_SOURCE'"
 export USE_MEMORY_SANITIZER="true"
 export RUN_UNIT_TESTS="false"
 export RUN_FUNCTIONAL_TESTS="false"

ci/test/00_setup_env_native_msan.sh

@@ -17,7 +17,8 @@ export PACKAGES="ninja-build"
 # BDB generates false-positives and will be removed in future
 export DEP_OPTS="DEBUG=1 NO_BDB=1 NO_QT=1 CC=clang CXX=clang++ CFLAGS='${MSAN_FLAGS}' CXXFLAGS='${MSAN_AND_LIBCXX_FLAGS}'"
 export GOAL="install"
-export BITCOIN_CONFIG="--with-sanitizers=memory --disable-hardening"
+# _FORTIFY_SOURCE is not compatible with MSAN.
+export BITCOIN_CONFIG="--with-sanitizers=memory CPPFLAGS='-U_FORTIFY_SOURCE'"
 export USE_MEMORY_SANITIZER="true"
 export RUN_FUNCTIONAL_TESTS="false"
 export CCACHE_MAXSIZE=250M