From mboxrd@z Thu Jan 1 00:00:00 1970 From: Leon Romanovsky Subject: [PATCH rdma-next 1/6] RDMA/cma: Check existence of netdevice during port validation Date: Tue, 9 Jan 2018 15:58:54 +0200 Message-ID: <20180109135859.7676-2-leon@kernel.org> References: <20180109135859.7676-1-leon@kernel.org> Return-path: In-Reply-To: <20180109135859.7676-1-leon-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org> Sender: linux-rdma-owner-u79uwXL29TY76Z2rM5mHXA@public.gmane.org To: Doug Ledford , Jason Gunthorpe Cc: Leon Romanovsky , RDMA mailing list , Daniel Jurgens , Mark Bloch , Parav Pandit List-Id: linux-rdma@vger.kernel.org From: Parav Pandit If valid netdevice is not found for RoCE, GID table should not be searched with NULL netdevice. Fixes: abae1b71dd37 ("IB/cma: cma_validate_port should verify the port and netdevice") Signed-off-by: Parav Pandit Reviewed-by: Mark Bloch Signed-off-by: Leon Romanovsky --- drivers/infiniband/core/cma.c | 8 +++++--- 1 file changed, 5 insertions(+), 3 deletions(-) diff --git a/drivers/infiniband/core/cma.c b/drivers/infiniband/core/cma.c index 169d3a3bbf71..683428cffd54 100644 --- a/drivers/infiniband/core/cma.c +++ b/drivers/infiniband/core/cma.c @@ -624,11 +624,13 @@ static inline int cma_validate_port(struct ib_device *device, u8 port, if ((dev_type != ARPHRD_INFINIBAND) && rdma_protocol_ib(device, port)) return ret; - if (dev_type == ARPHRD_ETHER && rdma_protocol_roce(device, port)) + if (dev_type == ARPHRD_ETHER && rdma_protocol_roce(device, port)) { ndev = dev_get_by_index(&init_net, bound_if_index); - else + if (!ndev) + return ret; + } else { gid_type = IB_GID_TYPE_IB; - + } ret = ib_find_cached_gid_by_port(device, gid, gid_type, port, ndev, NULL); -- 2.15.1 -- To unsubscribe from this list: send the line "unsubscribe linux-rdma" in the body of a message to majordomo-u79uwXL29TY76Z2rM5mHXA@public.gmane.org More majordomo info at http://vger.kernel.org/majordomo-info.html