[3.11] gh-148808: Add boundary check to asyncio.AbstractEventLoop.sock_recvf… (GH-148809) (#148834)
gh-148808: Add boundary check to asyncio.AbstractEventLoop.sock_recvf… (GH-148809)
(cherry picked from commit 1274766d3c29007ab77245a72abbf8dce2a9db4d)
Co-authored-by: Seth Larson <seth@python.org>