Commit aef950b4 authored by Wei Yongjun's avatar Wei Yongjun Committed by David S. Miller
Browse files

packet: fix possible dev refcnt leak when bind fail 



If bind is fail when bind is called after set PACKET_FANOUT
sock option, the dev refcnt will leak.

Signed-off-by: default avatarWei Yongjun <yongjun_wei@trendmicro.com.cn>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent c43c5f39

net/packet/af_packet.c

+5 −1
Original line number Diff line number Diff line
@@ -2448,8 +2448,12 @@ static int packet_do_bind(struct sock *sk, struct net_device *dev, __be16 protoc 
{

	struct packet_sock *po = pkt_sk(sk);



	if (po->fanout)

	if (po->fanout) {

		if (dev)

			dev_put(dev);



		return -EINVAL;

	}



	lock_sock(sk);