From: Romain Bellan <romain.bellan@wifirst.fr>
To: netfilter-devel@vger.kernel.org
Cc: Romain Bellan <romain.bellan@wifirst.fr>,
Florent Fourcot <florent.fourcot@wifirst.fr>
Subject: [PATCH nf-next v3 2/2] netfilter: ctnetlink: be more strict when NF_CONNTRACK_MARK is not set
Date: Thu, 26 Mar 2020 16:53:13 +0100 [thread overview]
Message-ID: <20200326155313.8417-2-romain.bellan@wifirst.fr> (raw)
In-Reply-To: <20200326155313.8417-1-romain.bellan@wifirst.fr>
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>
---
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 e8fdfe0febee..c5eb57f3148e 100644
--- a/net/netfilter/nf_conntrack_netlink.c
+++ b/net/netfilter/nf_conntrack_netlink.c
@@ -919,7 +919,7 @@ ctnetlink_alloc_filter(const struct nlattr * const cda[], u8 family)
int err;
#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
prev parent reply other threads:[~2020-03-26 16:00 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-03-26 15:53 [PATCH nf-next v3 1/2] netfilter: ctnetlink: add kernel side filtering for dump Romain Bellan
2020-03-26 15:53 ` Romain Bellan [this message]
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