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tipc: fix a double kfree_skb()

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[ Upstream commit acb4a33e98 ]

tipc_udp_xmit() drops the packet on error, there is no
need to drop it again.

Fixes: ef20cd4dd1 ("tipc: introduce UDP replicast")
Reported-and-tested-by: syzbot+eae585ba2cc2752d3704@syzkaller.appspotmail.com
Cc: Ying Xue <ying.xue@windriver.com>
Cc: Jon Maloy <jon.maloy@ericsson.com>
Signed-off-by: Cong Wang <xiyou.wangcong@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Cong Wang
2018-12-10 12:45:45 -08:00
committed by Greg Kroah-Hartman
parent 3bade4b76a
commit 3009452fb2
1 changed files with 1 additions and 3 deletions
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4
net/tipc/udp_media.c
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@@ -243,10 +243,8 @@ static int tipc_udp_send_msg(struct net *net, struct sk_buff *skb,
}
err = tipc_udp_xmit(net, _skb, ub, src, &rcast->addr);
if (err) {
kfree_skb(_skb);
if (err)
goto out;
}
}
err = 0;
out: