io_uring/zcrx: use READ_ONCE with user shared RQEs

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commit 531bb98a03 upstream.

Refill queue entries are shared with the user space, use READ_ONCE when
reading them.

Fixes: 34a3e60821 ("io_uring/zcrx: implement zerocopy receive pp memory provider");
Cc: stable@vger.kernel.org
Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

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Pavel Begunkov 2026-03-04 12:37:43 +00:00 • committed by Greg Kroah-Hartman

parent 73a7a34581

commit 857473efe9

1 changed files with 3 additions and 2 deletions

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io_uring/zcrx.c

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