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-rw-r--r--Python/specialize.c8
1 files changed, 8 insertions, 0 deletions
diff --git a/Python/specialize.c b/Python/specialize.c
index 61d7a5d..f845967 100644
--- a/Python/specialize.c
+++ b/Python/specialize.c
@@ -740,6 +740,10 @@ _Py_Specialize_LoadAttr(PyObject *owner, _Py_CODEUNIT *instr, PyObject *name)
PyMemberDescrObject *member = (PyMemberDescrObject *)descr;
struct PyMemberDef *dmem = member->d_member;
Py_ssize_t offset = dmem->offset;
+ if (!PyObject_TypeCheck(owner, member->d_common.d_type)) {
+ SPECIALIZATION_FAIL(LOAD_ATTR, SPEC_FAIL_EXPECTED_ERROR);
+ goto fail;
+ }
if (dmem->flags & PY_AUDIT_READ) {
SPECIALIZATION_FAIL(LOAD_ATTR, SPEC_FAIL_ATTR_AUDITED_SLOT);
goto fail;
@@ -849,6 +853,10 @@ _Py_Specialize_StoreAttr(PyObject *owner, _Py_CODEUNIT *instr, PyObject *name)
PyMemberDescrObject *member = (PyMemberDescrObject *)descr;
struct PyMemberDef *dmem = member->d_member;
Py_ssize_t offset = dmem->offset;
+ if (!PyObject_TypeCheck(owner, member->d_common.d_type)) {
+ SPECIALIZATION_FAIL(STORE_ATTR, SPEC_FAIL_EXPECTED_ERROR);
+ goto fail;
+ }
if (dmem->flags & READONLY) {
SPECIALIZATION_FAIL(STORE_ATTR, SPEC_FAIL_ATTR_READ_ONLY);
goto fail;