Commit 517ccc2a authored Mar 16, 2019 by Kangjie Lu Committed by David S. Miller Mar 16, 2019

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: Kangjie Lu <kjlu@umn.edu>
Signed-off-by: David S. Miller <davem@davemloft.net>

parent 9180bb4f

net/tipc/socket.c

+2 −0

Original line number	Diff line number	Diff line
		@@ -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);

		nest = nla_nest_start(skb, TIPC_NLA_SOCK_CON);
		if (!nest)
		return -EMSGSIZE;

		if (nla_put_u32(skb, TIPC_NLA_CON_NODE, peer_node))
		goto msg_full;