Comment # 2 on bug 1206509 from Jiri Slaby

Fixed by:
commit 990a4de57e44f4f4cfc33c90d2ec5d285b7c8342
Author: Jens Axboe <axboe@kernel.dk>
Date:   Mon Dec 19 07:28:26 2022 -0700

    io_uring/net: ensure compat import handlers clear free_iov

and pushed to master+stable.