diff options
Diffstat (limited to 'net/openvswitch/conntrack.c')
| -rw-r--r-- | net/openvswitch/conntrack.c | 17 |
1 files changed, 13 insertions, 4 deletions
diff --git a/net/openvswitch/conntrack.c b/net/openvswitch/conntrack.c index a5ec34f8502f..b5dcc0abde66 100644 --- a/net/openvswitch/conntrack.c +++ b/net/openvswitch/conntrack.c @@ -293,6 +293,9 @@ static int ovs_ct_helper(struct sk_buff *skb, u16 proto) return helper->help(skb, protoff, ct, ctinfo); } +/* Returns 0 on success, -EINPROGRESS if 'skb' is stolen, or other nonzero + * value if 'skb' is freed. + */ static int handle_fragments(struct net *net, struct sw_flow_key *key, u16 zone, struct sk_buff *skb) { @@ -308,8 +311,8 @@ static int handle_fragments(struct net *net, struct sw_flow_key *key, return err; ovs_cb.mru = IPCB(skb)->frag_max_size; - } else if (key->eth.type == htons(ETH_P_IPV6)) { #if IS_ENABLED(CONFIG_NF_DEFRAG_IPV6) + } else if (key->eth.type == htons(ETH_P_IPV6)) { enum ip6_defrag_users user = IP6_DEFRAG_CONNTRACK_IN + zone; struct sk_buff *reasm; @@ -318,17 +321,18 @@ static int handle_fragments(struct net *net, struct sw_flow_key *key, if (!reasm) return -EINPROGRESS; - if (skb == reasm) + if (skb == reasm) { + kfree_skb(skb); return -EINVAL; + } key->ip.proto = ipv6_hdr(reasm)->nexthdr; skb_morph(skb, reasm); consume_skb(reasm); ovs_cb.mru = IP6CB(skb)->frag_max_size; -#else - return -EPFNOSUPPORT; #endif } else { + kfree_skb(skb); return -EPFNOSUPPORT; } @@ -473,6 +477,9 @@ static bool labels_nonzero(const struct ovs_key_ct_labels *labels) return false; } +/* Returns 0 on success, -EINPROGRESS if 'skb' is stolen, or other nonzero + * value if 'skb' is freed. + */ int ovs_ct_execute(struct net *net, struct sk_buff *skb, struct sw_flow_key *key, const struct ovs_conntrack_info *info) @@ -508,6 +515,8 @@ int ovs_ct_execute(struct net *net, struct sk_buff *skb, &info->labels.mask); err: skb_push(skb, nh_ofs); + if (err) + kfree_skb(skb); return err; } |