Index: lib/sanitizer_common/sanitizer_mac.cc =================================================================== --- lib/sanitizer_common/sanitizer_mac.cc +++ lib/sanitizer_common/sanitizer_mac.cc @@ -195,7 +195,11 @@ } if (pid == 0) { close(master); - CHECK_EQ(login_tty(slave), 0); + if (login_tty(slave) != 0) { + // We already forked, there's not much we can do. Let's quit. + Report("login_tty failed (errno %d)\n", errno); + internal__exit(1); + } } else { *amaster = master; close(slave);