Index: sbin/ping/Makefile
===================================================================
--- sbin/ping/Makefile
+++ sbin/ping/Makefile
@@ -19,7 +19,7 @@
 CFLAGS+=-DWITH_CASPER
 .endif
 
-CFLAGS+=-DIPSEC
+CFLAGS+=-DIPSEC -fsanitize=address -O0
 LIBADD+=	ipsec
 
 HAS_TESTS=