diff --git a/compiler-rt/test/asan/TestCases/Posix/new_array_cookie_test.cpp b/compiler-rt/test/asan/TestCases/Posix/new_array_cookie_test.cpp
index edbdb4016d86e..fa896128cdb72 100644
--- a/compiler-rt/test/asan/TestCases/Posix/new_array_cookie_test.cpp
+++ b/compiler-rt/test/asan/TestCases/Posix/new_array_cookie_test.cpp
@@ -6,6 +6,9 @@
 
 // UNSUPPORTED: ios
 
+// Poisoning C++ array redzones is not implemented on arm
+// XFAIL: target=arm{{.*}}
+
 #include <stdio.h>
 #include <stdlib.h>
 struct C {
diff --git a/compiler-rt/test/asan/TestCases/Posix/new_array_cookie_uaf_test.cpp b/compiler-rt/test/asan/TestCases/Posix/new_array_cookie_uaf_test.cpp
index 335a56757d296..63b1171df0aef 100644
--- a/compiler-rt/test/asan/TestCases/Posix/new_array_cookie_uaf_test.cpp
+++ b/compiler-rt/test/asan/TestCases/Posix/new_array_cookie_uaf_test.cpp
@@ -5,6 +5,9 @@
 
 // UNSUPPORTED: ios
 
+// Poisoning C++ array redzones is not implemented on arm
+// XFAIL: target=arm{{.*}}
+
 #include <stdio.h>
 #include <stdlib.h>
 #include <assert.h>