| From | Greg Kroah-Hartman <> | Subject | [PATCH 4.18 041/145] IB/mlx5: Fix leaking stack memory to userspace | Date | Fri, 7 Sep 2018 23:08:27 +0200 |
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4.18-stable review patch. If anyone has any objections, please let me know.
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From: Jason Gunthorpe <jgg@mellanox.com>
commit 0625b4ba1a5d4703c7fb01c497bd6c156908af00 upstream.
mlx5_ib_create_qp_resp was never initialized and only the first 4 bytes were written.
Fixes: 41d902cb7c32 ("RDMA/mlx5: Fix definition of mlx5_ib_create_qp_resp") Cc: <stable@vger.kernel.org> Acked-by: Leon Romanovsky <leonro@mellanox.com> Signed-off-by: Jason Gunthorpe <jgg@mellanox.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
--- drivers/infiniband/hw/mlx5/qp.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
--- a/drivers/infiniband/hw/mlx5/qp.c +++ b/drivers/infiniband/hw/mlx5/qp.c @@ -1626,7 +1626,7 @@ static int create_qp_common(struct mlx5_ struct mlx5_ib_resources *devr = &dev->devr; int inlen = MLX5_ST_SZ_BYTES(create_qp_in); struct mlx5_core_dev *mdev = dev->mdev; - struct mlx5_ib_create_qp_resp resp; + struct mlx5_ib_create_qp_resp resp = {}; struct mlx5_ib_cq *send_cq; struct mlx5_ib_cq *recv_cq; unsigned long flags;
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