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gh-151126: Fix missing PyErr_NoMemory in typeobject.c #151582

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gh-151126: Fix missing PyErr_NoMemory in typeobject.c #151582

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2 changes: 2 additions & 0 deletions Misc/NEWS.d/next/Core_and_Builtins/2026-06-17-15-59-57.gh-issue-151126.FEWx_Q.rst
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Original file line number Diff line number Diff line change
@@ -0,0 +1,2 @@
Avoid possible crash in ``typeobject.c`` where a device has no memory left.
Now it properly raises a :exc:`MemoryError`. Patch by Ivy Xu.
1 change: 1 addition & 0 deletions Objects/typeobject.c
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Expand Up @@ -5492,6 +5492,7 @@ type_from_slots_or_spec(
Py_ssize_t name_buf_len = strlen(it.name) + 1;
_ht_tpname = PyMem_Malloc(name_buf_len);
if (_ht_tpname == NULL) {
PyErr_NoMemory();
goto finally;
}
memcpy(_ht_tpname, it.name, name_buf_len);
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