47 lines
1.7 KiB
Diff
47 lines
1.7 KiB
Diff
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
|
|
From: Daniel Jurgens <danielj@mellanox.com>
|
|
Date: Mon, 20 Nov 2017 16:47:45 -0600
|
|
Subject: [PATCH] IB/core: Don't enforce PKey security on SMI MADs
|
|
MIME-Version: 1.0
|
|
Content-Type: text/plain; charset=UTF-8
|
|
Content-Transfer-Encoding: 8bit
|
|
|
|
Per the infiniband spec an SMI MAD can have any PKey. Checking the pkey
|
|
on SMI MADs is not necessary, and it seems that some older adapters
|
|
using the mthca driver don't follow the convention of using the default
|
|
PKey, resulting in false denials, or errors querying the PKey cache.
|
|
|
|
SMI MAD security is still enforced, only agents allowed to manage the
|
|
subnet are able to receive or send SMI MADs.
|
|
|
|
Reported-by: Chris Blake <chrisrblake93@gmail.com>
|
|
Fixes: 47a2b338fe63("IB/core: Enforce security on management datagrams")
|
|
Signed-off-by: Daniel Jurgens <danielj@mellanox.com>
|
|
Reviewed-by: Parav Pandit <parav@mellanox.com>
|
|
Signed-off-by: Leon Romanovsky <leon@kernel.org>
|
|
Signed-off-by: Fabian Grünbichler <f.gruenbichler@proxmox.com>
|
|
---
|
|
drivers/infiniband/core/security.c | 7 +++++--
|
|
1 file changed, 5 insertions(+), 2 deletions(-)
|
|
|
|
diff --git a/drivers/infiniband/core/security.c b/drivers/infiniband/core/security.c
|
|
index 70ad19c4c73e..8f9fd3b757db 100644
|
|
--- a/drivers/infiniband/core/security.c
|
|
+++ b/drivers/infiniband/core/security.c
|
|
@@ -692,8 +692,11 @@ int ib_mad_enforce_security(struct ib_mad_agent_private *map, u16 pkey_index)
|
|
{
|
|
int ret;
|
|
|
|
- if (map->agent.qp->qp_type == IB_QPT_SMI && !map->agent.smp_allowed)
|
|
- return -EACCES;
|
|
+ if (map->agent.qp->qp_type == IB_QPT_SMI) {
|
|
+ if (!map->agent.smp_allowed)
|
|
+ return -EACCES;
|
|
+ return 0;
|
|
+ }
|
|
|
|
ret = ib_security_pkey_access(map->agent.device,
|
|
map->agent.port_num,
|
|
--
|
|
2.14.2
|
|
|