io_uring: fix 0-iov read buffer select

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Doing vectored buf-select read with 0 iovec passed is meaningless and
utterly broken, forbid it.

Cc: <stable@vger.kernel.org> # 5.7+
Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>

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Pavel Begunkov 2020-12-19 03:15:43 +00:00 • committed by Jens Axboe

parent dfea9fce29

commit dd20166236

1 changed files with 1 additions and 3 deletions

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fs/io_uring.c

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