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authorAndy Zhou <azhou@nicira.com>2014-05-06 17:23:48 -0700
committerPravin B Shelar <pshelar@nicira.com>2014-06-29 14:10:43 -0700
commitfe984c08e20f0fc2b4666bf8eeeb02605568387b (patch)
tree671315d3508f8a202c4187062a83ab24beed0e7f /net
parentdba63115ce0c888fcb4cdec3f8a4ba97d144afaf (diff)
openvswitch: Fix a double free bug for the sample action
When sample action returns with an error, the skb has already been freed. This patch fix a bug to make sure we don't free it again. This bug introduced by commit ccb1352e76cff05 (net: Add Open vSwitch kernel components.) Signed-off-by: Andy Zhou <azhou@nicira.com> Signed-off-by: Pravin B Shelar <pshelar@nicira.com>
Diffstat (limited to 'net')
-rw-r--r--net/openvswitch/actions.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/net/openvswitch/actions.c b/net/openvswitch/actions.c
index c36856a457c..e70d8b18e96 100644
--- a/net/openvswitch/actions.c
+++ b/net/openvswitch/actions.c
@@ -551,6 +551,8 @@ static int do_execute_actions(struct datapath *dp, struct sk_buff *skb,
case OVS_ACTION_ATTR_SAMPLE:
err = sample(dp, skb, a);
+ if (unlikely(err)) /* skb already freed. */
+ return err;
break;
}