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gh-151126: set MemoryError on alloc failure in _PyXIData_InitWithSize #156301

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gh-151126: set MemoryError on alloc failure in _PyXIData_InitWithSize #156301

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8cf9517
gh-151126: Set MemoryError on alloc failure in _PyXIData_InitWithSize
KowalskiThomas Aug 23, 2026
7cd79d3
Update Python/crossinterp.c
cmaloney Nov 7, 2026
6e7b815
review: update Misc/NEWS.d/next/Core_and_Builtins/2026-08-23-16-31-00…
KowalskiThomas Nov 9, 2026
01a7904
Merge branch 'main' into kowalski/add-check-xidata-initwithsize
cmaloney Nov 9, 2026
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1 change: 1 addition & 0 deletions Misc/NEWS.d/next/Core_and_Builtins/2026-08-23-16-31-00.gh-issue-151126.phAWIG.rst
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Original file line number Diff line number Diff line change
@@ -0,0 +1 @@
Fix a crash when allocation failure occurs during :ref:`interp-object-sharing`.
2 changes: 2 additions & 0 deletions Python/crossinterp.c
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Original file line number Diff line number Diff line change
Expand Up @@ -388,6 +388,8 @@ _PyXIData_InitWithSize(_PyXIData_t *xidata,
_PyXIData_Init(xidata, interp, NULL, obj, new_object);
xidata->data = PyMem_RawCalloc(1, size);
if (xidata->data == NULL) {
Py_CLEAR(xidata->obj);
PyErr_NoMemory();
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return -1;
}
xidata->free = PyMem_RawFree;
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