Commit 7496e658 authored by Pavel Begunkov's avatar Pavel Begunkov Committed by Jens Axboe
Browse files

io_uring/zcrx: check unsupported flags on import 



The imoorted zcrx registration path checks for ZCRX_REG_IMPORT, as it
should, but doesn't reject any unsupported flags. Fix that.

Cc: stable@vger.kernel.org
Fixes: 00d91481 ("io_uring/zcrx: share an ifq between rings")
Signed-off-by: default avatarPavel Begunkov <asml.silence@gmail.com>
Signed-off-by: default avatarJens Axboe <axboe@kernel.dk>
parent 5d540e45

io_uring/zcrx.c

+2 −0
Original line number Diff line number Diff line
@@ -677,6 +677,8 @@ static int import_zcrx(struct io_ring_ctx *ctx, 
		return -EINVAL;

	if (reg->if_rxq || reg->rq_entries || reg->area_ptr || reg->region_ptr)

		return -EINVAL;

	if (reg->flags & ~ZCRX_REG_IMPORT)

		return -EINVAL;



	fd = reg->if_idx;

	CLASS(fd, f)(fd);