https://gcc.gnu.org/bugzilla/show_bug.cgi?id=67865
--- Comment #2 from Kostya Serebryany <kcc at gcc dot gnu.org> --- (In reply to dominik.strasser from comment #1) > Host system: CentOS release 6.4 (Final) > glibc: glibc-2.12-1.132.el6.x86_64 glibc-2.12 might be a bit too old. We don't test with it, and this code is very glibc-dependent. Also, the asan run-time in gcc has not been updated for at least 1 year. Do you observe the same behavior with fresh clang?