tipc: Fix potential OOB in tipc_link_proto_rcv()

stable inclusion
from stable-v5.10.159
commit 36e248269a16bd872631b76d4f0ec710f84e140d
category: bugfix
bugzilla: https://gitee.com/openeuler/kernel/issues/I7NTXH

Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=36e248269a16bd872631b76d4f0ec710f84e140d

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

[ Upstream commit 743117a9 ]

Fix the potential risk of OOB if skb_linearize() fails in
tipc_link_proto_rcv().

Fixes: 5cbb28a4 ("tipc: linearize arriving NAME_DISTR and LINK_PROTO buffers")
Signed-off-by: NYueHaibing <yuehaibing@huawei.com>
Link: https://lore.kernel.org/r/20221203094635.29024-1-yuehaibing@huawei.comSigned-off-by: NPaolo Abeni <pabeni@redhat.com>
Signed-off-by: NSasha Levin <sashal@kernel.org>
Signed-off-by: Nsanglipeng <sanglipeng1@jd.com>
(cherry picked from commit b9c2530e)

net/tipc/link.c

@@ -2188,7 +2188,9 @@ static int tipc_link_proto_rcv(struct tipc_link *l, struct sk_buff *skb,
 	if (tipc_own_addr(l->net) > msg_prevnode(hdr))
 		l->net_plane = msg_net_plane(hdr);
 
-	skb_linearize(skb);
+	if (skb_linearize(skb))
+		goto exit;
+
 	hdr = buf_msg(skb);
 	data = msg_data(hdr);