gh-147960: Fix memory leak in crossinterp _tuple_shared() on alloc failure (#147961)

diff --git a/Python/crossinterp_data_lookup.h b/Python/crossinterp_data_lookup.h
index cf84633e10e356ca50db3c44bc3ee51dc455ac25..54422ad2335cb6247e28dee3bd43bc9221cd3558 100644 (file)
--- a/Python/crossinterp_data_lookup.h
+++ b/Python/crossinterp_data_lookup.h
@@ -657,6 +657,7 @@ _tuple_shared(PyThreadState *tstate, PyObject *obj, xidata_fallback_t fallback,
     shared->items = (_PyXIData_t **) PyMem_Calloc(shared->len, sizeof(_PyXIData_t *));
     if (shared->items == NULL) {
         PyErr_NoMemory();
+        PyMem_RawFree(shared);
         return -1;
     }