diff --git a/numpy/core/src/multiarray/buffer.c b/numpy/core/src/multiarray/buffer.c
index 51676f0b307b..d8ad80266431 100644
--- a/numpy/core/src/multiarray/buffer.c
+++ b/numpy/core/src/multiarray/buffer.c
@@ -583,9 +583,11 @@ _buffer_info_new(PyObject *obj)
     err = _buffer_format_string(descr, &fmt, obj, NULL, NULL);
     Py_DECREF(descr);
     if (err != 0) {
+        free(info->shape);
         goto fail;
     }
     if (_append_char(&fmt, '\0') < 0) {
+        free(info->shape);
         goto fail;
     }
     info->format = fmt.s;
diff --git a/numpy/core/src/multiarray/ctors.c b/numpy/core/src/multiarray/ctors.c
index bd70eba0c9fa..acc4abac6d30 100644
--- a/numpy/core/src/multiarray/ctors.c
+++ b/numpy/core/src/multiarray/ctors.c
@@ -1410,6 +1410,7 @@ _array_from_buffer_3118(PyObject *memoryview)
          * dimensions, so the array is now 0d.
          */
         nd = 0;
+        Py_DECREF(descr);
         descr = (PyArray_Descr *)PyObject_CallFunctionObjArgs(
                 (PyObject *)&PyArrayDescr_Type, Py_TYPE(view->obj), NULL);
         if (descr == NULL) {
diff --git a/numpy/core/src/multiarray/scalartypes.c.src b/numpy/core/src/multiarray/scalartypes.c.src
index 2f71c8ae9746..52de31289d03 100644
--- a/numpy/core/src/multiarray/scalartypes.c.src
+++ b/numpy/core/src/multiarray/scalartypes.c.src
@@ -2599,6 +2599,8 @@ NPY_NO_EXPORT PyTypeObject PyGenericArrType_Type = {
 static void
 void_dealloc(PyVoidScalarObject *v)
 {
+    _dealloc_cached_buffer_info((PyObject *)v);
+
     if (v->flags & NPY_ARRAY_OWNDATA) {
         npy_free_cache(v->obval, Py_SIZE(v));
     }
diff --git a/numpy/core/tests/test_multiarray.py b/numpy/core/tests/test_multiarray.py
index 70cf74c4a19d..3bc2db90f257 100644
--- a/numpy/core/tests/test_multiarray.py
+++ b/numpy/core/tests/test_multiarray.py
@@ -7211,6 +7211,7 @@ def __bool__(self):
         except NameError:
             Error = RuntimeError  # python < 3.5
         assert_raises(Error, bool, self_containing)  # previously stack overflow
+        self_containing[0] = None  # resolve circular reference
 
     def test_to_int_scalar(self):
         # gh-9972 means that these aren't always the same