This is a note to let you know that I've just added the patch titled
netfilter: fix wrong byte order in nf_ct_seqadj_set internal information
to the 3.12-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
netfilter-fix-wrong-byte-order-in-nf_ct_seqadj_set-internal-information.patch
and it can be found in the queue-3.12 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From 23dfe136e2bf8d9ea1095704c535368a9bc721da Mon Sep 17 00:00:00 2001
From: Phil Oester <kernel@xxxxxxxxxxxx>
Date: Sat, 16 Nov 2013 20:37:46 -0800
Subject: netfilter: fix wrong byte order in nf_ct_seqadj_set internal information
From: Phil Oester <kernel@xxxxxxxxxxxx>
commit 23dfe136e2bf8d9ea1095704c535368a9bc721da upstream.
In commit 41d73ec053d2, sequence number adjustments were moved to a
separate file. Unfortunately, the sequence numbers that are stored
in the nf_ct_seqadj structure are expressed in host byte order. The
necessary ntohl call was removed when the call to adjust_tcp_sequence
was collapsed into nf_ct_seqadj_set. This broke the FTP NAT helper.
Fix it by adding back the byte order conversions.
Reported-by: Dawid Stawiarski <dawid.stawiarski@xxxxxxxxx>
Signed-off-by: Phil Oester <kernel@xxxxxxxxxxxx>
Signed-off-by: Pablo Neira Ayuso <pablo@xxxxxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
net/netfilter/nf_conntrack_seqadj.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
--- a/net/netfilter/nf_conntrack_seqadj.c
+++ b/net/netfilter/nf_conntrack_seqadj.c
@@ -41,8 +41,8 @@ int nf_ct_seqadj_set(struct nf_conn *ct,
spin_lock_bh(&ct->lock);
this_way = &seqadj->seq[dir];
if (this_way->offset_before == this_way->offset_after ||
- before(this_way->correction_pos, seq)) {
- this_way->correction_pos = seq;
+ before(this_way->correction_pos, ntohl(seq))) {
+ this_way->correction_pos = ntohl(seq);
this_way->offset_before = this_way->offset_after;
this_way->offset_after += off;
}
Patches currently in stable-queue which might be from kernel@xxxxxxxxxxxx are
queue-3.12/netfilter-fix-wrong-byte-order-in-nf_ct_seqadj_set-internal-information.patch
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