From: Stephen Suryaputra <ssuryaextr@gmail.com>
Date: Tue, 25 Jun 2019 00:14:06 +0000 (-0400)
Subject: ipv4: Use return value of inet_iif() for __raw_v4_lookup in the while loop
X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=4451dc92e5bbd31363dac5c82fc35080b330933b;p=GitHub%2FLineageOS%2FG12%2Fandroid_kernel_amlogic_linux-4.9.git

ipv4: Use return value of inet_iif() for __raw_v4_lookup in the while loop

[ Upstream commit 38c73529de13e1e10914de7030b659a2f8b01c3b ]

In commit 19e4e768064a8 ("ipv4: Fix raw socket lookup for local
traffic"), the dif argument to __raw_v4_lookup() is coming from the
returned value of inet_iif() but the change was done only for the first
lookup. Subsequent lookups in the while loop still use skb->dev->ifIndex.

Fixes: 19e4e768064a8 ("ipv4: Fix raw socket lookup for local traffic")
Signed-off-by: Stephen Suryaputra <ssuryaextr@gmail.com>
Reviewed-by: David Ahern <dsahern@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---

diff --git a/net/ipv4/raw.c b/net/ipv4/raw.c
index 1d0e2284d8ad..ed53bf5d2b68 100644
--- a/net/ipv4/raw.c
+++ b/net/ipv4/raw.c
@@ -197,7 +197,7 @@ static int raw_v4_input(struct sk_buff *skb, const struct iphdr *iph, int hash)
 		}
 		sk = __raw_v4_lookup(net, sk_next(sk), iph->protocol,
 				     iph->saddr, iph->daddr,
-				     skb->dev->ifindex);
+				     dif);
 	}
 out:
 	read_unlock(&raw_v4_hashinfo.lock);