linux-kernel - [PATCH 4.9 099/125] IB/core: Namespace is mandatory input for address resolution

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-Id: <20170725192019.830212026@linuxfoundation.org>
Date:   Tue, 25 Jul 2017 12:20:14 -0700
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org, Moni Shoua <monis@...lanox.com>,
        Leon Romanovsky <leon@...nel.org>,
        Doug Ledford <dledford@...hat.com>
Subject: [PATCH 4.9 099/125] IB/core: Namespace is mandatory input for address resolution

4.9-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Moni Shoua <monis@...lanox.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@...lanox.com>
Signed-off-by: Leon Romanovsky <leon@...nel.org>
Signed-off-by: Doug Ledford <dledford@...hat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.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
@@ -518,6 +518,11 @@ 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 =
@@ -555,7 +560,6 @@ static int addr_resolve(struct sockaddr
 	}
 
 	addr->bound_dev_if = ndev->ifindex;
-	addr->net = dev_net(ndev);
 	dev_put(ndev);
 
 	return ret;