From: David Ahern <dsahern@gmail.com>
Date: Wed, 19 Dec 2018 23:53:22 +0000 (-0800)
Subject: neighbor: Initialize protocol when new pneigh_entry are created
X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=4.20.0-rc6-01647-g754d5da63145;p=linux.git

neighbor: Initialize protocol when new pneigh_entry are created

pneigh_lookup uses kmalloc versus kzalloc when new entries are allocated.
Given that the newly added protocol field needs to be initialized.

Fixes: df9b0e30d44c ("neighbor: Add protocol attribute")
Signed-off-by: David Ahern <dsahern@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---

diff --git a/net/core/neighbour.c b/net/core/neighbour.c
index 43687c9abe1df..d9fa101b0e415 100644
--- a/net/core/neighbour.c
+++ b/net/core/neighbour.c
@@ -725,6 +725,7 @@ struct pneigh_entry * pneigh_lookup(struct neigh_table *tbl,
 	if (!n)
 		goto out;
 
+	n->protocol = 0;
 	write_pnet(&n->net, net);
 	memcpy(n->key, pkey, key_len);
 	n->dev = dev;