4.19-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Cong Wang <xiyou.wangc...@gmail.com>

[ Upstream commit dc4501ff287547dea7ca10f1c580c741291a8760 ]

bearer_disable() already calls kfree_rcu() to free struct tipc_bearer,
we don't need to call kfree() again.

Fixes: cb30a63384bc ("tipc: refactor function tipc_enable_bearer()")
Reported-by: syzbot+b981acf1fb240c0c1...@syzkaller.appspotmail.com
Cc: Ying Xue <ying....@windriver.com>
Cc: Jon Maloy <jon.ma...@ericsson.com>
Signed-off-by: Cong Wang <xiyou.wangc...@gmail.com>
Signed-off-by: David S. Miller <da...@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gre...@linuxfoundation.org>
---
 net/tipc/bearer.c |    1 -
 1 file changed, 1 deletion(-)

--- a/net/tipc/bearer.c
+++ b/net/tipc/bearer.c
@@ -317,7 +317,6 @@ static int tipc_enable_bearer(struct net
        res = tipc_disc_create(net, b, &b->bcast_addr, &skb);
        if (res) {
                bearer_disable(net, b);
-               kfree(b);
                errstr = "failed to create discoverer";
                goto rejected;
        }


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