Commit 953c37e0 authored by Pavel Begunkov's avatar Pavel Begunkov Committed by Jens Axboe
Browse files

io_uring/rsrc: use nospec'ed indexes 



We use array_index_nospec() for registered buffer indexes, but don't use
it while poking into rsrc tags, fix that.

Fixes: 634d00df ("io_uring: add full-fledged dynamic buffers support")
Signed-off-by: default avatarPavel Begunkov <asml.silence@gmail.com>
Link: https://lore.kernel.org/r/f02fafc5a9c0dd69be2b0618c38831c078232ff0.1681395792.git.asml.silence@gmail.com


Signed-off-by: default avatarJens Axboe <axboe@kernel.dk>
parent 519760df

io_uring/rsrc.c

+1 −1
Original line number Diff line number Diff line
@@ -517,7 +517,7 @@ static int __io_sqe_buffers_update(struct io_ring_ctx *ctx, 
		}



		ctx->user_bufs[i] = imu;

		*io_get_tag_slot(ctx->buf_data, offset) = tag;

		*io_get_tag_slot(ctx->buf_data, i) = tag;

	}



	if (needs_switch)