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RDMA/mlx5: Check CAP_NET_RAW in user namespace for devx create

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Currently, the capability check is done in the default
init_user_ns user namespace. When a process runs in a
non default user namespace, such check fails. Due to this
when a process is running using Podman, it fails to create
the devx object.

Since the RDMA device is a resource within a network namespace,
use the network namespace associated with the RDMA device to
determine its owning user namespace.

Fixes: a8b92ca1b0 ("IB/mlx5: Introduce DEVX")
Signed-off-by: Parav Pandit <parav@nvidia.com>
Link: https://patch.msgid.link/36ee87e92defd81410c6a2b33f9d6c0d6dcfd64c.1750963874.git.leon@kernel.org
Signed-off-by: Leon Romanovsky <leon@kernel.org>
This commit is contained in:
Parav Pandit 2025-06-26 21:58:10 +03:00 committed by Leon Romanovsky
parent 4b527c23c9
commit bd82467f17
1 changed files with 1 additions and 1 deletions
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2
drivers/infiniband/hw/mlx5/devx.c
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@ -159,7 +159,7 @@ int mlx5_ib_devx_create(struct mlx5_ib_dev *dev, bool is_user, u64 req_ucaps)
uctx = MLX5_ADDR_OF(create_uctx_in, in, uctx);
if (is_user &&
(MLX5_CAP_GEN(dev->mdev, uctx_cap) & MLX5_UCTX_CAP_RAW_TX) &&
capable(CAP_NET_RAW))
rdma_dev_has_raw_cap(&dev->ib_dev))
cap |= MLX5_UCTX_CAP_RAW_TX;
if (is_user &&
(MLX5_CAP_GEN(dev->mdev, uctx_cap) &