Patch "net: vrf: Fix setting NLM_F_EXCL flag when adding l3mdev rule" has been added to the 4.9-stable tree

Patch "net: vrf: Fix setting NLM_F_EXCL flag when adding l3mdev rule" has been added to the 4.9-stable tree

[gregkh]

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

    net: vrf: Fix setting NLM_F_EXCL flag when adding l3mdev rule

to the 4.9-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:
     net-vrf-fix-setting-nlm_f_excl-flag-when-adding-l3mdev-rule.patch
and it can be found in the queue-4.9 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 foo@baz Sat Apr 29 08:22:13 CEST 2017
From: David Ahern <dsa@cumulusnetworks.com>
Date: Thu, 13 Apr 2017 10:57:15 -0600
Subject: net: vrf: Fix setting NLM_F_EXCL flag when adding l3mdev rule

From: David Ahern <dsa@cumulusnetworks.com>


[ Upstream commit 426c87caa2b4578b43cd3f689f02c65b743b2559 ]

Only need 1 l3mdev FIB rule. Fix setting NLM_F_EXCL in the nlmsghdr.

Fixes: 1aa6c4f6b8cd8 ("net: vrf: Add l3mdev rules on first device create")
Signed-off-by: David Ahern <dsa@cumulusnetworks.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/net/vrf.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/drivers/net/vrf.c
+++ b/drivers/net/vrf.c
@@ -1124,7 +1124,7 @@ static int vrf_fib_rule(const struct net
 		goto nla_put_failure;
 
 	/* rule only needs to appear once */
-	nlh->nlmsg_flags &= NLM_F_EXCL;
+	nlh->nlmsg_flags |= NLM_F_EXCL;
 
 	frh = nlmsg_data(nlh);
 	memset(frh, 0, sizeof(*frh));


Patches currently in stable-queue which might be from dsa@cumulusnetworks.com are

queue-4.9/ipv6-fix-idev-addr_list-corruption.patch
queue-4.9/net-ipv6-regenerate-host-route-if-moved-to-gc-list.patch
queue-4.9/net-ipv6-rtf_pcpu-should-not-be-settable-from-userspace.patch
queue-4.9/net-vrf-fix-setting-nlm_f_excl-flag-when-adding-l3mdev-rule.patch