From: Pablo Neira Ayuso <pablo@netfilter.org>
To: netfilter-devel@vger.kernel.org
Cc: davem@davemloft.net, netdev@vger.kernel.org
Subject: [PATCH 2/3] netfilter: uapi: correct UNTRACKED conntrack state bit number
Date: Fri, 5 Jan 2018 16:08:24 +0100 [thread overview]
Message-ID: <20180105150825.18460-3-pablo@netfilter.org> (raw)
In-Reply-To: <20180105150825.18460-1-pablo@netfilter.org>
From: Florian Westphal <fw@strlen.de>
nft_ct exposes this bit to userspace. This used to be
#define NF_CT_STATE_UNTRACKED_BIT (1 << (IP_CT_NUMBER + 1))
(IP_CT_NUMBER is 5, so this was 0x40)
.. but this got changed to 8 (0x100) when the untracked object got removed.
Replace this with a literal 6 to prevent further incompatible changes
in case IP_CT_NUMBER ever increases.
Fixes: cc41c84b7e7f2 ("netfilter: kill the fake untracked conntrack objects")
Reported-by: Li Shuang <shuali@redhat.com>
Signed-off-by: Florian Westphal <fw@strlen.de>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
---
include/uapi/linux/netfilter/nf_conntrack_common.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/include/uapi/linux/netfilter/nf_conntrack_common.h b/include/uapi/linux/netfilter/nf_conntrack_common.h
index 3fea7709a441..57ccfb32e87f 100644
--- a/include/uapi/linux/netfilter/nf_conntrack_common.h
+++ b/include/uapi/linux/netfilter/nf_conntrack_common.h
@@ -36,7 +36,7 @@ enum ip_conntrack_info {
#define NF_CT_STATE_INVALID_BIT (1 << 0)
#define NF_CT_STATE_BIT(ctinfo) (1 << ((ctinfo) % IP_CT_IS_REPLY + 1))
-#define NF_CT_STATE_UNTRACKED_BIT (1 << (IP_CT_UNTRACKED + 1))
+#define NF_CT_STATE_UNTRACKED_BIT (1 << 6)
/* Bitset representing status of connection. */
enum ip_conntrack_status {
--
2.11.0
next prev parent reply other threads:[~2018-01-05 15:08 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-01-05 15:08 [PATCH 0/3] Netfilter fixes for net Pablo Neira Ayuso
2018-01-05 15:08 ` [PATCH 1/3] netfilter: nf_tables: fix chain filter in nf_tables_dump_rules() Pablo Neira Ayuso
2018-01-05 15:08 ` Pablo Neira Ayuso [this message]
2018-01-05 15:08 ` [PATCH 3/3] netfilter: nf_tables: fix potential NULL-ptr deref in nf_tables_dump_obj_done() Pablo Neira Ayuso
2018-01-05 15:33 ` [PATCH 0/3] Netfilter fixes for net David Miller
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