diff --git a/gdb/testsuite/gdb.base/libsegfault.exp b/gdb/testsuite/gdb.base/libsegfault.exp
index 6b8453f5550..ceb8c417d4d 100644
--- a/gdb/testsuite/gdb.base/libsegfault.exp
+++ b/gdb/testsuite/gdb.base/libsegfault.exp
@@ -33,7 +33,7 @@ if { [is_remote host] } {
 proc gdb_spawn_with_ld_preload {lib cmdline_opts} {
     global env
 
-    save_vars { env(LD_PRELOAD) } {
+    save_vars { env(LD_PRELOAD) env(ASAN_OPTIONS)} {
 	if { ![info exists env(LD_PRELOAD) ]
 	     || $env(LD_PRELOAD) == "" } {
 	    set env(LD_PRELOAD) "$lib"
@@ -41,6 +41,12 @@ proc gdb_spawn_with_ld_preload {lib cmdline_opts} {
 	    append env(LD_PRELOAD) ":$lib"
 	}
 
+	# Prevent address sanitizer error:
+	# ASan runtime does not come first in initial library list; you should
+	# either link runtime to your application or manually preload it with
+	# LD_PRELOAD.
+	set_sanitizer_default ASAN_OPTIONS verify_asan_link_order 0
+
 	gdb_spawn_with_cmdline_opts $cmdline_opts
     }
 }
diff --git a/gdb/testsuite/gdb.threads/attach-slow-waitpid.exp b/gdb/testsuite/gdb.threads/attach-slow-waitpid.exp
index 68c866a36f0..93b1d88c0dc 100644
--- a/gdb/testsuite/gdb.threads/attach-slow-waitpid.exp
+++ b/gdb/testsuite/gdb.threads/attach-slow-waitpid.exp
@@ -71,7 +71,7 @@ with_test_prefix "compile test executable" {
 proc gdb_spawn_with_ld_preload {lib} {
     global env
 
-    save_vars { env(LD_PRELOAD) } {
+    save_vars { env(LD_PRELOAD) env(ASAN_OPTIONS) } {
 	if { ![info exists env(LD_PRELOAD) ]
 	     || $env(LD_PRELOAD) == "" } {
 	    set env(LD_PRELOAD) "$lib"
@@ -79,6 +79,12 @@ proc gdb_spawn_with_ld_preload {lib} {
 	    append env(LD_PRELOAD) ":$lib"
 	}
 
+	# Prevent address sanitizer error:
+	# ASan runtime does not come first in initial library list; you should
+	# either link runtime to your application or manually preload it with
+	# LD_PRELOAD.
+	set_sanitizer_default ASAN_OPTIONS verify_asan_link_order 0
+
 	gdb_start
     }
 }