Gentwo Git Trees - linux/.git/commit

author	Pavel Begunkov <asml.silence@gmail.com>
	Mon, 4 Nov 2024 12:02:47 +0000 (12:02 +0000)
committer	Jens Axboe <axboe@kernel.dk>
	Wed, 6 Nov 2024 20:55:38 +0000 (13:55 -0700)
commit	483242714fcc853f3f5ef728116f5ec168468bca
tree	24a767685e4efe76288d6a6be63e630afee2a12c	tree \| snapshot
parent	b6f58a3f4aa8dba424356c7a69388a81f4459300	commit \| diff

io_uring: prevent speculating sq_array indexing

The SQ index array consists of user provided indexes, which io_uring
then uses to index the SQ, and so it's susceptible to speculation. For
all other queues io_uring tracks heads and tails in kernel, and they
shouldn't need any special care.

Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>
Link: https://lore.kernel.org/r/c6c7a25962924a55869e317e4fdb682dfdc6b279.1730687889.git.asml.silence@gmail.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>