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From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
To: linux-kernel@vger.kernel.org
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
	stable@vger.kernel.org,
	Matthias Schiffer <mschiffer@universe-factory.net>,
	Jiri Benc <jbenc@redhat.com>,
	"David S. Miller" <davem@davemloft.net>
Subject: [PATCH 4.4 02/28] [PATCH 04/41] vxlan: correctly validate VXLAN ID against VXLAN_N_VID
Date: Mon, 20 Mar 2017 18:48:57 +0100	[thread overview]
Message-ID: <20170320174718.975028441@linuxfoundation.org> (raw)
In-Reply-To: <20170320174718.794407270@linuxfoundation.org>

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

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

From: Matthias Schiffer <mschiffer@universe-factory.net>

[ Upstream commit 4e37d6911f36545b286d15073f6f2222f840e81c ]

The incorrect check caused an off-by-one error: the maximum VID 0xffffff
was unusable.

Fixes: d342894c5d2f ("vxlan: virtual extensible lan")
Signed-off-by: Matthias Schiffer <mschiffer@universe-factory.net>
Acked-by: Jiri Benc <jbenc@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/net/vxlan.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/drivers/net/vxlan.c
+++ b/drivers/net/vxlan.c
@@ -2600,7 +2600,7 @@ static int vxlan_validate(struct nlattr
 
 	if (data[IFLA_VXLAN_ID]) {
 		__u32 id = nla_get_u32(data[IFLA_VXLAN_ID]);
-		if (id >= VXLAN_VID_MASK)
+		if (id >= VXLAN_N_VID)
 			return -ERANGE;
 	}
 

  parent reply	other threads:[~2017-03-20 17:58 UTC|newest]

Thread overview: 29+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-03-20 17:48 [PATCH 4.4 00/28] 4.4.56-stable review Greg Kroah-Hartman
2017-03-20 17:48 ` [PATCH 4.4 01/28] netlink: remove mmapped netlink support Greg Kroah-Hartman
2017-03-20 17:48 ` Greg Kroah-Hartman [this message]
2017-03-20 17:48 ` [PATCH 4.4 03/28] [PATCH 05/41] vti6: return GRE_KEY for vti6 Greg Kroah-Hartman
2017-03-20 17:48 ` [PATCH 4.4 04/28] ipv4: mask tos for input route Greg Kroah-Hartman
2017-03-20 17:49 ` [PATCH 4.4 06/28] net: dont call strlen() on the user buffer in packet_bind_spkt() Greg Kroah-Hartman
2017-03-20 17:49 ` [PATCH 4.4 07/28] net: net_enable_timestamp() can be called from irq contexts Greg Kroah-Hartman
2017-03-20 17:49 ` [PATCH 4.4 08/28] dccp: Unlock sock before calling sk_free() Greg Kroah-Hartman
2017-03-20 17:49 ` [PATCH 4.4 09/28] tcp: fix various issues for sockets morphing to listen state Greg Kroah-Hartman
2017-03-20 17:49 ` [PATCH 4.4 10/28] net: fix socket refcounting in skb_complete_wifi_ack() Greg Kroah-Hartman
2017-03-20 17:49 ` [PATCH 4.4 11/28] net: fix socket refcounting in skb_complete_tx_timestamp() Greg Kroah-Hartman
2017-03-20 17:49 ` [PATCH 4.4 12/28] dccp: fix use-after-free in dccp_feat_activate_values Greg Kroah-Hartman
2017-03-20 17:49 ` [PATCH 4.4 13/28] vrf: Fix use-after-free in vrf_xmit Greg Kroah-Hartman
2017-03-20 17:49 ` [PATCH 4.4 14/28] uapi: fix linux/packet_diag.h userspace compilation error Greg Kroah-Hartman
2017-03-20 17:49 ` [PATCH 4.4 16/28] mpls: Send route delete notifications when router module is unloaded Greg Kroah-Hartman
2017-03-20 17:49 ` [PATCH 4.4 17/28] ipv6: make ECMP route replacement less greedy Greg Kroah-Hartman
2017-03-20 17:49 ` [PATCH 4.4 18/28] ipv6: avoid write to a possibly cloned skb Greg Kroah-Hartman
2017-03-20 17:49 ` [PATCH 4.4 19/28] bridge: drop netfilter fake rtable unconditionally Greg Kroah-Hartman
2017-03-20 17:49 ` [PATCH 4.4 21/28] dccp: fix memory leak during tear-down of unsuccessful connection request Greg Kroah-Hartman
2017-03-20 17:49 ` [PATCH 4.4 22/28] net sched actions: decrement module reference count after table flush Greg Kroah-Hartman
2017-03-20 17:49 ` [PATCH 4.4 23/28] fscrypt: fix renaming and linking special files Greg Kroah-Hartman
2017-03-20 17:49 ` [PATCH 4.4 24/28] fscrypto: lock inode while setting encryption policy Greg Kroah-Hartman
2017-03-20 17:49 ` [PATCH 4.4 25/28] x86/kasan: Fix boot with KASAN=y and PROFILE_ANNOTATED_BRANCHES=y Greg Kroah-Hartman
2017-03-20 17:49   ` Greg Kroah-Hartman
2017-03-20 17:49 ` [PATCH 4.4 26/28] x86/perf: Fix CR4.PCE propagation to use active_mm instead of mm Greg Kroah-Hartman
2017-03-20 17:49 ` [PATCH 4.4 27/28] futex: Fix potential use-after-free in FUTEX_REQUEUE_PI Greg Kroah-Hartman
2017-03-20 17:49 ` [PATCH 4.4 28/28] futex: Add missing error handling to FUTEX_REQUEUE_PI Greg Kroah-Hartman
2017-03-21  0:11 ` [PATCH 4.4 00/28] 4.4.56-stable review Shuah Khan
2017-03-21  2:13 ` Guenter Roeck

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