[PATCH 4.14 28/43] ipv4: Use return value of inet_iif() for __raw_v4_lookup in the while loop

From: Greg Kroah-Hartman
Date: Tue Jul 02 2019 - 04:10:56 EST

From: Stephen Suryaputra <ssuryaextr@xxxxxxxxx>

[ 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@xxxxxxxxx>
Reviewed-by: David Ahern <dsahern@xxxxxxxxx>
Signed-off-by: David S. Miller <davem@xxxxxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
net/ipv4/raw.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

--- a/net/ipv4/raw.c
+++ b/net/ipv4/raw.c
@@ -202,7 +202,7 @@ static int raw_v4_input(struct sk_buff *
sk = __raw_v4_lookup(net, sk_next(sk), iph->protocol,
iph->saddr, iph->daddr,
- skb->dev->ifindex, sdif);
+ dif, sdif);