From 2ce578ca9444bb44da66b9a494f56e7ec12e6466 Mon Sep 17 00:00:00 2001 From: Miaohe Lin Date: Sat, 27 Jun 2020 15:47:51 +0800 Subject: [PATCH] net: ipv4: Fix wrong type conversion from hint to rt in ip_route_use_hint() We can't cast sk_buff to rtable by (struct rtable *)hint. Use skb_rtable(). Fixes: 02b24941619f ("ipv4: use dst hint for ipv4 list receive") Signed-off-by: Miaohe Lin Signed-off-by: David S. Miller --- net/ipv4/route.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/net/ipv4/route.c b/net/ipv4/route.c index 1d7076b78e63..a01efa062f6b 100644 --- a/net/ipv4/route.c +++ b/net/ipv4/route.c @@ -2027,7 +2027,7 @@ int ip_route_use_hint(struct sk_buff *skb, __be32 daddr, __be32 saddr, const struct sk_buff *hint) { struct in_device *in_dev = __in_dev_get_rcu(dev); - struct rtable *rt = (struct rtable *)hint; + struct rtable *rt = skb_rtable(hint); struct net *net = dev_net(dev); int err = -EINVAL; u32 tag = 0;