From: Sasha Levin <sashal@kernel.org>
To: linux-kernel@vger.kernel.org, stable@vger.kernel.org
Cc: Romain Bellan <romain.bellan@wifirst.fr>,
Florent Fourcot <florent.fourcot@wifirst.fr>,
Pablo Neira Ayuso <pablo@netfilter.org>,
Sasha Levin <sashal@kernel.org>,
netfilter-devel@vger.kernel.org, coreteam@netfilter.org,
netdev@vger.kernel.org
Subject: [PATCH AUTOSEL 5.6 003/149] netfilter: ctnetlink: be more strict when NF_CONNTRACK_MARK is not set
Date: Sat, 11 Apr 2020 19:01:20 -0400 [thread overview]
Message-ID: <20200411230347.22371-3-sashal@kernel.org> (raw)
In-Reply-To: <20200411230347.22371-1-sashal@kernel.org>
From: Romain Bellan <romain.bellan@wifirst.fr>
[ Upstream commit 7c6b4121627aeaa79536fbb900feafec740410d3 ]
When CONFIG_NF_CONNTRACK_MARK is not set, any CTA_MARK or CTA_MARK_MASK
in netlink message are not supported. We should return an error when one
of them is set, not both
Fixes: 9306425b70bf ("netfilter: ctnetlink: must check mark attributes vs NULL")
Signed-off-by: Romain Bellan <romain.bellan@wifirst.fr>
Signed-off-by: Florent Fourcot <florent.fourcot@wifirst.fr>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
net/netfilter/nf_conntrack_netlink.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/net/netfilter/nf_conntrack_netlink.c b/net/netfilter/nf_conntrack_netlink.c
index 6a1c8f1f61718..7f5258ae1218a 100644
--- a/net/netfilter/nf_conntrack_netlink.c
+++ b/net/netfilter/nf_conntrack_netlink.c
@@ -860,7 +860,7 @@ ctnetlink_alloc_filter(const struct nlattr * const cda[], u8 family)
struct ctnetlink_filter *filter;
#ifndef CONFIG_NF_CONNTRACK_MARK
- if (cda[CTA_MARK] && cda[CTA_MARK_MASK])
+ if (cda[CTA_MARK] || cda[CTA_MARK_MASK])
return ERR_PTR(-EOPNOTSUPP);
#endif
--
2.20.1
next parent reply other threads:[~2020-04-11 23:51 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <20200411230347.22371-1-sashal@kernel.org>
2020-04-11 23:01 ` Sasha Levin [this message]
2020-04-11 23:03 ` [PATCH AUTOSEL 5.6 117/149] netfilter: nf_tables: silence a RCU-list warning in nft_table_lookup() Sasha Levin
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