Commit 517ccc2a authored by Kangjie Lu's avatar Kangjie Lu Committed by David S. Miller

net: tipc: fix a missing check for nla_nest_start

nla_nest_start may fail. The fix check its status and returns
-EMSGSIZE in case it fails.
Signed-off-by: default avatarKangjie Lu <kjlu@umn.edu>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 9180bb4f
...@@ -3255,6 +3255,8 @@ static int __tipc_nl_add_sk_con(struct sk_buff *skb, struct tipc_sock *tsk) ...@@ -3255,6 +3255,8 @@ static int __tipc_nl_add_sk_con(struct sk_buff *skb, struct tipc_sock *tsk)
peer_port = tsk_peer_port(tsk); peer_port = tsk_peer_port(tsk);
nest = nla_nest_start(skb, TIPC_NLA_SOCK_CON); nest = nla_nest_start(skb, TIPC_NLA_SOCK_CON);
if (!nest)
return -EMSGSIZE;
if (nla_put_u32(skb, TIPC_NLA_CON_NODE, peer_node)) if (nla_put_u32(skb, TIPC_NLA_CON_NODE, peer_node))
goto msg_full; goto msg_full;
......
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