Patch "IB/core: Namespace is mandatory input for address resolution" has been added to the 4.12-stable tree

Patch "IB/core: Namespace is mandatory input for address resolution" has been added to the 4.12-stable tree

[gregkh]

This is a note to let you know that I've just added the patch titled

    IB/core: Namespace is mandatory input for address resolution

to the 4.12-stable tree which can be found at:
    http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary

The filename of the patch is:
     ib-core-namespace-is-mandatory-input-for-address-resolution.patch
and it can be found in the queue-4.12 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@vger.kernel.org> know about it.


>From bebb2a473a43c8f84a8210687d1cbdde503046d7 Mon Sep 17 00:00:00 2001
From: Moni Shoua <monis@mellanox.com>
Date: Tue, 23 May 2017 10:48:44 +0300
Subject: IB/core: Namespace is mandatory input for address resolution

From: Moni Shoua <monis@mellanox.com>

commit bebb2a473a43c8f84a8210687d1cbdde503046d7 upstream.

In function addr_resolve() the namespace is a required input parameter
and not an output. It is passed later for searching the routing table
and device addresses. Also, it shouldn't be copied back to the caller.

Fixes: 565edd1d5555 ('IB/addr: Pass network namespace as a parameter')
Signed-off-by: Moni Shoua <monis@mellanox.com>
Signed-off-by: Leon Romanovsky <leon@kernel.org>
Signed-off-by: Doug Ledford <dledford@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

---
 drivers/infiniband/core/addr.c |    6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

--- a/drivers/infiniband/core/addr.c
+++ b/drivers/infiniband/core/addr.c
@@ -510,6 +510,11 @@ static int addr_resolve(struct sockaddr
 	struct dst_entry *dst;
 	int ret;
 
+	if (!addr->net) {
+		pr_warn_ratelimited("%s: missing namespace\n", __func__);
+		return -EINVAL;
+	}
+
 	if (src_in->sa_family == AF_INET) {
 		struct rtable *rt = NULL;
 		const struct sockaddr_in *dst_in4 =
@@ -547,7 +552,6 @@ static int addr_resolve(struct sockaddr
 	}
 
 	addr->bound_dev_if = ndev->ifindex;
-	addr->net = dev_net(ndev);
 	dev_put(ndev);
 
 	return ret;


Patches currently in stable-queue which might be from monis@mellanox.com are

queue-4.12/ib-core-namespace-is-mandatory-input-for-address-resolution.patch