diff --git a/libcxx/include/deque b/libcxx/include/deque
index fca8b3d6e2c73..73d9a3b392088 100644
--- a/libcxx/include/deque
+++ b/libcxx/include/deque
@@ -1011,6 +1011,9 @@ private:
 
   _LIBCPP_HIDE_FROM_ABI void __annotate_delete() const _NOEXCEPT {
 #ifndef _LIBCPP_HAS_NO_ASAN
+    // The default allocator does not require unpoisoning before returning memory.
+    if _LIBCPP_CONSTEXPR_SINCE_CXX17 (is_same<allocator_type, allocator<_Tp> >::value)
+      return;
     if (empty()) {
       for (size_t __i = 0; __i < __map_.size(); ++__i) {
         __annotate_whole_block(__i, __asan_unposion);
diff --git a/libcxx/include/string b/libcxx/include/string
index c676182fba8ba..3e1d468892d0a 100644
--- a/libcxx/include/string
+++ b/libcxx/include/string
@@ -1912,8 +1912,10 @@ private:
 
   _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX20 void __annotate_delete() const _NOEXCEPT {
 #if !defined(_LIBCPP_HAS_NO_ASAN) && defined(_LIBCPP_INSTRUMENTED_WITH_ASAN)
-    if (!__libcpp_is_constant_evaluated() && (__asan_short_string_is_annotated() || __is_long()))
-      __annotate_contiguous_container(data() + size() + 1, data() + capacity() + 1);
+    // The default allocator does not require unpoisoning before returning memory.
+    if _LIBCPP_CONSTEXPR_SINCE_CXX17 (!is_same<allocator_type, allocator<__default_allocator_type> >::value)
+      if (!__libcpp_is_constant_evaluated() && (__asan_short_string_is_annotated() || __is_long()))
+        __annotate_contiguous_container(data() + size() + 1, data() + capacity() + 1);
 #endif
   }
 
diff --git a/libcxx/include/vector b/libcxx/include/vector
index 0098273a195ff..5b248ef9d6aa6 100644
--- a/libcxx/include/vector
+++ b/libcxx/include/vector
@@ -853,7 +853,9 @@ private:
 
   _LIBCPP_CONSTEXPR_SINCE_CXX20 _LIBCPP_HIDE_FROM_ABI void __annotate_delete() const _NOEXCEPT {
 #ifndef _LIBCPP_HAS_NO_ASAN
-    __annotate_contiguous_container(data(), data() + capacity(), data() + size(), data() + capacity());
+    // The default allocator does not require unpoisoning before returning memory.
+    if _LIBCPP_CONSTEXPR_SINCE_CXX17 (!is_same<allocator_type, __default_allocator_type>::value)
+      __annotate_contiguous_container(data(), data() + capacity(), data() + size(), data() + capacity());
 #endif
   }