From: Jiri Pirko <jiri@resnulli.us>
To: linux-rdma@vger.kernel.org
Cc: cgroups@vger.kernel.org, netdev@vger.kernel.org,
linux-s390@vger.kernel.org, linux-kselftest@vger.kernel.org,
jgg@ziepe.ca, leon@kernel.org, parav@nvidia.com,
mbloch@nvidia.com, cmeiohas@nvidia.com, roman.gushchin@linux.dev,
bvanassche@acm.org, zyjzyj2000@gmail.com, shuah@kernel.org,
tj@kernel.org, mkoutny@suse.com, hannes@cmpxchg.org,
alibuda@linux.alibaba.com, dust.li@linux.alibaba.com,
sidraya@linux.ibm.com, wenjia@linux.ibm.com,
yanjun.zhu@linux.dev, cui.tao@linux.dev
Subject: [PATCH rdma-next v2 10/14] RDMA/core: Document the SELinux ibendport net namespace limitation
Date: Tue, 14 Jul 2026 16:29:23 +0200 [thread overview]
Message-ID: <20260714142927.1298897-11-jiri@resnulli.us> (raw)
In-Reply-To: <20260714142927.1298897-1-jiri@resnulli.us>
From: Jiri Pirko <jiri@nvidia.com>
Document that SELinux ibendport labels use a global (device name, port)
key, so same-named RDMA devices in different net namespaces share a label.
Signed-off-by: Jiri Pirko <jiri@nvidia.com>
---
drivers/infiniband/core/security.c | 6 ++++++
1 file changed, 6 insertions(+)
diff --git a/drivers/infiniband/core/security.c b/drivers/infiniband/core/security.c
index 9af31d1d9d70..a82c46965416 100644
--- a/drivers/infiniband/core/security.c
+++ b/drivers/infiniband/core/security.c
@@ -700,6 +700,12 @@ int ib_mad_agent_security_setup(struct ib_mad_agent *agent,
if (qp_type != IB_QPT_SMI)
return 0;
+ /*
+ * SELinux labels an endport by (device name, port) from a global
+ * policy. If devices in different net namespaces share a name, they get
+ * the same label; distinguishing them would need net namespace support
+ * in the policy language and tooling.
+ */
spin_lock(&mad_agent_list_lock);
ret = security_ib_endport_manage_subnet(agent->security,
dev_name(&agent->device->dev),
--
2.54.0
next prev parent reply other threads:[~2026-07-14 14:30 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-07-14 14:29 [PATCH rdma-next v2 00/14] RDMA: Make device names unique per net namespace Jiri Pirko
2026-07-14 14:29 ` [PATCH rdma-next v2 01/14] RDMA/core: Pass the net namespace to the device name lookups Jiri Pirko
2026-07-14 14:29 ` [PATCH rdma-next v2 02/14] RDMA/core: Handle device name conflicts when changing net namespace Jiri Pirko
2026-07-14 14:29 ` [PATCH rdma-next v2 03/14] RDMA/core: Support renaming a device when changing its " Jiri Pirko
2026-07-14 14:29 ` [PATCH rdma-next v2 04/14] RDMA/nldev: Report net namespace move errors through extack Jiri Pirko
2026-07-14 14:29 ` [PATCH rdma-next v2 05/14] RDMA/nldev: Allow setting the device name while changing net namespace Jiri Pirko
2026-07-14 14:29 ` [PATCH rdma-next v2 06/14] net/smc: Look up the pnetid ib device within the " Jiri Pirko
2026-07-14 14:29 ` [PATCH rdma-next v2 07/14] RDMA/srp: Make the SRP sysfs class net namespace aware Jiri Pirko
2026-07-14 14:29 ` [PATCH rdma-next v2 08/14] RDMA/cgroup: Disambiguate devices across net namespaces Jiri Pirko
2026-07-14 14:29 ` [PATCH rdma-next v2 09/14] RDMA/cma: Document that CM configfs cannot be net namespace scoped Jiri Pirko
2026-07-14 14:29 ` Jiri Pirko [this message]
2026-07-14 14:29 ` [PATCH rdma-next v2 11/14] RDMA/core: Make device names unique per net namespace Jiri Pirko
2026-07-14 14:29 ` [PATCH rdma-next v2 12/14] RDMA/rxe: Allow queue VMAs to outlive ucontexts Jiri Pirko
2026-07-14 14:29 ` [PATCH rdma-next v2 13/14] RDMA/rxe: Implement disassociate_ucontext callback Jiri Pirko
2026-07-14 14:29 ` [PATCH rdma-next v2 14/14] RDMA/selftests: Add rxe_netns_names test Jiri Pirko
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