diff --git a/libc/test/src/compiler/stack_chk_guard_test.cpp b/libc/test/src/compiler/stack_chk_guard_test.cpp
index 4ec8398c9fc95..d1869a2af412e 100644
--- a/libc/test/src/compiler/stack_chk_guard_test.cpp
+++ b/libc/test/src/compiler/stack_chk_guard_test.cpp
@@ -12,19 +12,24 @@
 #include "src/string/memset.h"
 #include "test/UnitTest/Test.h"
 
+namespace {
+
 TEST(LlvmLibcStackChkFail, Death) {
   EXPECT_DEATH([] { __stack_chk_fail(); }, WITH_SIGNAL(SIGABRT));
 }
 
-// Disable the test when asan is enabled so that it doesn't immediately fail
-// after the memset, but before the stack canary is re-checked.
-#ifndef LIBC_HAS_ADDRESS_SANITIZER
+// Disable sanitizers such as asan and hwasan that would catch the buffer
+// overrun before it clobbered the stack canary word.  Function attributes
+// can't be applied to lambdas before C++23, so this has to be separate.  When
+// https://github.com/llvm/llvm-project/issues/125760 is fixed, this can use
+// the modern spelling [[gnu::no_sanitize(...)]] without conditionalization.
+__attribute__((no_sanitize("all"))) void smash_stack() {
+  int arr[20];
+  LIBC_NAMESPACE::memset(arr, 0xAA, 2001);
+}
+
 TEST(LlvmLibcStackChkFail, Smash) {
-  EXPECT_DEATH(
-      [] {
-        int arr[20];
-        LIBC_NAMESPACE::memset(arr, 0xAA, 2001);
-      },
-      WITH_SIGNAL(SIGABRT));
+  EXPECT_DEATH(smash_stack, WITH_SIGNAL(SIGABRT));
 }
-#endif // LIBC_HAS_ADDRESS_SANITIZER
+
+} // namespace