diff options
| -rw-r--r-- | Misc/NEWS.d/next/Core and Builtins/2023-02-08-17-13-31.gh-issue-101696.seJhTt.rst | 1 | ||||
| -rw-r--r-- | Objects/typeobject.c | 2 |
2 files changed, 3 insertions, 0 deletions
diff --git a/Misc/NEWS.d/next/Core and Builtins/2023-02-08-17-13-31.gh-issue-101696.seJhTt.rst b/Misc/NEWS.d/next/Core and Builtins/2023-02-08-17-13-31.gh-issue-101696.seJhTt.rst new file mode 100644 index 0000000..ff2bbb4 --- /dev/null +++ b/Misc/NEWS.d/next/Core and Builtins/2023-02-08-17-13-31.gh-issue-101696.seJhTt.rst @@ -0,0 +1 @@ +Invalidate type version tag in ``_PyStaticType_Dealloc`` for static types, avoiding bug where a false cache hit could crash the interpreter. Patch by Kumar Aditya. diff --git a/Objects/typeobject.c b/Objects/typeobject.c index 59e0bf2..bf6ccdb 100644 --- a/Objects/typeobject.c +++ b/Objects/typeobject.c @@ -4469,6 +4469,8 @@ _PyStaticType_Dealloc(PyTypeObject *type) } type->tp_flags &= ~Py_TPFLAGS_READY; + type->tp_flags &= ~Py_TPFLAGS_VALID_VERSION_TAG; + type->tp_version_tag = 0; if (type->tp_flags & _Py_TPFLAGS_STATIC_BUILTIN) { _PyStaticType_ClearWeakRefs(type); |