From: Jeremy Sowden <jeremy@azazel.net>
Date: Tue, 7 Mar 2023 23:22:57 +0000
Subject: [PATCH] netfilter: nft_masq: correct length for loading protocol
registers
References: bsc#1012628
Patch-mainline: 6.2.8
Git-commit: ec2c5917eb858428b2083d1c74f445aabbe8316b
[ Upstream commit ec2c5917eb858428b2083d1c74f445aabbe8316b ]
The values in the protocol registers are two bytes wide. However, when
parsing the register loads, the code currently uses the larger 16-byte
size of a `union nf_inet_addr`. Change it to use the (correct) size of
a `union nf_conntrack_man_proto` instead.
Fixes: 8a6bf5da1aef ("netfilter: nft_masq: support port range")
Signed-off-by: Jeremy Sowden <jeremy@azazel.net>
Reviewed-by: Florian Westphal <fw@strlen.de>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Signed-off-by: Jiri Slaby <jslaby@suse.cz>
---
net/netfilter/nft_masq.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/net/netfilter/nft_masq.c b/net/netfilter/nft_masq.c
index e55e4552..9544c2f1 100644
--- a/net/netfilter/nft_masq.c
+++ b/net/netfilter/nft_masq.c
@@ -43,7 +43,7 @@ static int nft_masq_init(const struct nft_ctx *ctx,
const struct nft_expr *expr,
const struct nlattr * const tb[])
{
- u32 plen = sizeof_field(struct nf_nat_range, min_addr.all);
+ u32 plen = sizeof_field(struct nf_nat_range, min_proto.all);
struct nft_masq *priv = nft_expr_priv(expr);
int err;
--
2.35.3