RDMA/uverbs: Check CAP_NET_RAW in user namespace for RAW QP create

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 QP.

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.

Signed-off-by: Parav Pandit <parav@nvidia.com>
Link: https://patch.msgid.link/3914ef9702b01de8843a391ce397fca67d0fc7af.1750963874.git.leon@kernel.org
Signed-off-by: Leon Romanovsky <leon@kernel.org>

diff --git a/drivers/infiniband/core/uverbs_cmd.c b/drivers/infiniband/core/uverbs_cmd.c
index 4d96e4a678f351e25eef115134c9c5a7972ebc9c..6ab3eb49449a5b2443766990fc0e2b153f45ed76 100644 (file)
--- a/drivers/infiniband/core/uverbs_cmd.c
+++ b/drivers/infiniband/core/uverbs_cmd.c
@@ -1312,9 +1312,9 @@ static int create_qp(struct uverbs_attr_bundle *attrs,
 
        switch (cmd->qp_type) {
        case IB_QPT_RAW_PACKET:
-               if (!capable(CAP_NET_RAW))
+               if (!rdma_uattrs_has_raw_cap(attrs))
                        return -EPERM;
-               break;
+               fallthrough;
        case IB_QPT_RC:
        case IB_QPT_UC:
        case IB_QPT_UD: