If ovs_fragment() was unable to fragment the skb due to an L2 header
that exceeds the supported length, skbs would be leaked. Fix the bug.
Fixes: 7f8a436 "openvswitch: Add conntrack action"
Signed-off-by: Joe Stringer <joestrin...@nicira.com>
---
v2: Drop if condition, return in success case.
---
net/openvswitch/actions.c | 11 +++++++----
1 file changed, 7 insertions(+), 4 deletions(-)
diff --git a/net/openvswitch/actions.c b/net/openvswitch/actions.c
index e23a61c..4cb93f9 100644
--- a/net/openvswitch/actions.c
+++ b/net/openvswitch/actions.c
@@ -684,7 +684,7 @@ static void ovs_fragment(struct vport *vport, struct
sk_buff *skb, u16 mru,
{
if (skb_network_offset(skb) > MAX_L2_LEN) {
OVS_NLERR(1, "L2 header too long to fragment");
- return;
+ goto err;
}
if (ethertype == htons(ETH_P_IP)) {
@@ -708,8 +708,7 @@ static void ovs_fragment(struct vport *vport, struct
sk_buff *skb, u16 mru,
struct rt6_info ovs_rt;
if (!v6ops) {
- kfree_skb(skb);
- return;
+ goto err;
}
prepare_frag(vport, skb);
@@ -728,8 +727,12 @@ static void ovs_fragment(struct vport *vport, struct
sk_buff *skb, u16 mru,
WARN_ONCE(1, "Failed fragment ->%s: eth=%04x, MRU=%d, MTU=%d.",
ovs_vport_name(vport), ntohs(ethertype), mru,
vport->dev->mtu);
- kfree_skb(skb);
+ goto err;
}
+
+ return;
+err:
+ kfree_skb(skb);
}
static void do_output(struct datapath *dp, struct sk_buff *skb, int out_port,
--
2.1.4
--
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