[PATCH 5.7 285/393] netfilter: nft_meta: fix iifgroup matching

From: Greg Kroah-Hartman
Date: Mon Aug 17 2020 - 14:50:02 EST


From: Florian Westphal <fw@xxxxxxxxx>

[ Upstream commit 78470d9d0d9f2f8d16f28382a4071568e839c0d5 ]

iifgroup matching erroneously checks the output interface.

Fixes: 8724e819cc9a ("netfilter: nft_meta: move all interface related keys to helper")
Reported-by: Demi M. Obenour <demiobenour@xxxxxxxxx>
Signed-off-by: Florian Westphal <fw@xxxxxxxxx>
Signed-off-by: Pablo Neira Ayuso <pablo@xxxxxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
---
net/netfilter/nft_meta.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/net/netfilter/nft_meta.c b/net/netfilter/nft_meta.c
index 951b6e87ed5d9..7bc6537f3ccb5 100644
--- a/net/netfilter/nft_meta.c
+++ b/net/netfilter/nft_meta.c
@@ -253,7 +253,7 @@ static bool nft_meta_get_eval_ifname(enum nft_meta_keys key, u32 *dest,
return false;
break;
case NFT_META_IIFGROUP:
- if (!nft_meta_store_ifgroup(dest, nft_out(pkt)))
+ if (!nft_meta_store_ifgroup(dest, nft_in(pkt)))
return false;
break;
case NFT_META_OIFGROUP:
--
2.25.1