I'm performing a Asan run on GnuPG 2.2.15 and all of its dependencies. Everything was built with -fsanitize=address -fno-omit-frame-pointer. For Autotools projects the two flags get placed in CFLAGS, CXXFLAGS and LDFLAGS.
It looks likeAsan is producing multiple findings in gpgerror's tests/t-logging.c. It looks like logbuf is not being free'd before calling fail or die.
Attached is an updated t-logging.c that cleans up before exiting. It avoids the false positives so the build can continue.