GeezerVison

…H-159984) (#160099)

On builds using CPython's fallback `getaddrinfo()`, an allocation failure while constructing address results can return success with a null result, and the canonical-name path can ignore a helper error. `socket.getaddrinfo()` can then return an empty list, other callers can crash when they dereference the null result, and partially built address lists may leak. Set `EAI_MEMORY`, propagate helper errors, and keep the partial list available for cleanup.
(cherry picked from commit 7c39e8f)

Co-authored-by: Jelle Zijlstra <[email protected]>

…H-159984) (#160100)

On builds using CPython's fallback `getaddrinfo()`, an allocation failure while constructing address results can return success with a null result, and the canonical-name path can ignore a helper error. `socket.getaddrinfo()` can then return an empty list, other callers can crash when they dereference the null result, and partially built address lists may leak. Set `EAI_MEMORY`, propagate helper errors, and keep the partial list available for cleanup.
(cherry picked from commit 7c39e8f)

Co-authored-by: Jelle Zijlstra <[email protected]>