In `_sentry_patched_stream_common`, the span is entered via `span.__enter__()` on line 758, but there's no try/except/finally to ensure `span.__exit__()` is called if `_set_stream_input_data()` or `_patch_streaming_response_iterator()` raises an exception. This would leave an unclosed span in Sentry's span stack, potentially corrupting tracing state. Other functions in the same file (lines 680-683, 718-721) properly handle this with `finally` blocks.