https://gcc.gnu.org/bugzilla/show_bug.cgi?id=69624
--- Comment #6 from Dmitry Vyukov <dvyukov at google dot com> --- Also what gcc version? I've tried: gcc version 6.0.0 20160105 (experimental) (GCC) $ gcc /tmp/af_netlink.c -c -O2 -fsanitize-coverage=trace-pc -fsanitize=kernel-address --param asan-stack=1 --param asan-globals=1 --param asan-instrumentation-with-call-threshold=10000 -fasan-shadow-offset=0xdffffc0000000000 (which should resemble what kernel uses), but I don't see any similar code fragments.