linux-kernel - [PATCH 3.16.y-ckt 115/133] ipv6: fix exthdrs offload registration in out

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Message-Id: <1443606681-7124-116-git-send-email-luis.henriques@canonical.com>
Date:	Wed, 30 Sep 2015 10:51:03 +0100
From:	Luis Henriques <luis.henriques@...onical.com>
To:	linux-kernel@...r.kernel.org, stable@...r.kernel.org,
	kernel-team@...ts.ubuntu.com
Cc:	Daniel Borkmann <daniel@...earbox.net>,
	"David S. Miller" <davem@...emloft.net>,
	Luis Henriques <luis.henriques@...onical.com>
Subject: [PATCH 3.16.y-ckt 115/133] ipv6: fix exthdrs offload registration in out_rt path

3.16.7-ckt18 -stable review patch.  If anyone has any objections, please let me know.

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

From: Daniel Borkmann <daniel@...earbox.net>

commit e41b0bedba0293b9e1e8d1e8ed553104b9693656 upstream.

We previously register IPPROTO_ROUTING offload under inet6_add_offload(),
but in error path, we try to unregister it with inet_del_offload(). This
doesn't seem correct, it should actually be inet6_del_offload(), also
ipv6_exthdrs_offload_exit() from that commit seems rather incorrect (it
also uses rthdr_offload twice), but it got removed entirely later on.

Fixes: 3336288a9fea ("ipv6: Switch to using new offload infrastructure.")
Signed-off-by: Daniel Borkmann <daniel@...earbox.net>
Signed-off-by: David S. Miller <davem@...emloft.net>
Signed-off-by: Luis Henriques <luis.henriques@...onical.com>
---
 net/ipv6/exthdrs_offload.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/net/ipv6/exthdrs_offload.c b/net/ipv6/exthdrs_offload.c
index 447a7fbd1bb6..f5e2ba1c18bf 100644
--- a/net/ipv6/exthdrs_offload.c
+++ b/net/ipv6/exthdrs_offload.c
@@ -36,6 +36,6 @@ out:
 	return ret;
 
 out_rt:
-	inet_del_offload(&rthdr_offload, IPPROTO_ROUTING);
+	inet6_del_offload(&rthdr_offload, IPPROTO_ROUTING);
 	goto out;
 }
--
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