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authorMiss Islington (bot) <31488909+miss-islington@users.noreply.github.com>2022-11-10 16:44:49 (GMT)
committerGitHub <noreply@github.com>2022-11-10 16:44:49 (GMT)
commitf9a68be6733fba8b5003119445b08dedace9367e (patch)
tree312a6ac27f43bf8bfae49503cb5f868af2356b9b /Python/specialize.c
parent1de088ca95af7da6dbd1f4c715c178abd20170c4 (diff)
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[3.11] GH-99257: Check the owner's type when specializing slots (GH-99324)
(cherry picked from commit 9d692841691590c25e6cf5b2250a594d3bf54825) Co-authored-by: Brandt Bucher <brandtbucher@microsoft.com>
Diffstat (limited to 'Python/specialize.c')
-rw-r--r--Python/specialize.c8
1 files changed, 8 insertions, 0 deletions
diff --git a/Python/specialize.c b/Python/specialize.c
index b318cb5..08ce2f5 100644
--- a/Python/specialize.c
+++ b/Python/specialize.c
@@ -688,6 +688,10 @@ _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;
@@ -777,6 +781,10 @@ _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;