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closed this by deleting the head repository
Jul 21, 2026
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Three bugs in the cross-interpreter data subsystem are fixed by this patch: a use-after-free in
_ensure_notshareableerrorwhere control falls through to code that dereferences actxpointer after ownership of the referenced object was transferred to the thread state via_PyErr_SetRaisedException, a leaked exception in_PyXI_UnwrapNotShareableErrorwhere_PyXI_InitFailurecan fail under low-memory conditions leaving the exception removed from the thread error indicator and never restored, and a use-after-free in_get_xidatawhereobjis passed to_set_xid_lookup_failurefor error-string formatting after it has already been released withPy_DECREF, meaning a concurrent deallocation would dereference a freed pointer.