diff --git a/include/pybind11/pybind11.h b/include/pybind11/pybind11.h
index 1806583e6b..94b02cb6e5 100644
--- a/include/pybind11/pybind11.h
+++ b/include/pybind11/pybind11.h
@@ -1380,7 +1380,19 @@ class generic_type : public object {
             } else {
                 internals.registered_types_cpp[tindex] = tinfo;
             }
+            // The following `GCC diagnostic` pragmas are used to suppress
+// warnings  about out-of-bounds array access in the following
+// code. The warnings are false positives. This bug affects GCC 12.
+//
+// This is discussed here:
+// https://gcc.gnu.org/bugzilla/show_bug.cgi?id=115824.
+//
+// The following fix is based on the the suggested workaround:
+#pragma GCC diagnostic push
+#pragma GCC diagnostic ignored "-Warray-bounds"
+#pragma GCC diagnostic ignored "-Wstringop-overread"
             internals.registered_types_py[(PyTypeObject *) m_ptr] = {tinfo};
+#pragma GCC diagnostic pop
         });
 
         if (rec.bases.size() > 1 || rec.multiple_inheritance) {