This is a note to let you know that I've just added the patch titled
netfilter: nf_ct_expect: Change __nf_ct_expect_check() return value.
to the 4.4-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-nf_ct_expect-change-__nf_ct_expect_check-return-value.patch
and it can be found in the queue-4.4 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From foo@baz Thu Oct 19 15:15:46 CEST 2017
From: Jarno Rajahalme <jarno@xxxxxxx>
Date: Thu, 23 Feb 2017 17:08:54 -0800
Subject: netfilter: nf_ct_expect: Change __nf_ct_expect_check() return value.
From: Jarno Rajahalme <jarno@xxxxxxx>
[ Upstream commit 4b86c459c7bee3acaf92f0e2b4c6ac803eaa1a58 ]
Commit 4dee62b1b9b4 ("netfilter: nf_ct_expect: nf_ct_expect_insert()
returns void") inadvertently changed the successful return value of
nf_ct_expect_related_report() from 0 to 1 due to
__nf_ct_expect_check() returning 1 on success. Prevent this
regression in the future by changing the return value of
__nf_ct_expect_check() to 0 on success.
Signed-off-by: Jarno Rajahalme <jarno@xxxxxxx>
Acked-by: Joe Stringer <joe@xxxxxxx>
Signed-off-by: Pablo Neira Ayuso <pablo@xxxxxxxxxxxxx>
Signed-off-by: Sasha Levin <alexander.levin@xxxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
net/netfilter/nf_conntrack_expect.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
--- a/net/netfilter/nf_conntrack_expect.c
+++ b/net/netfilter/nf_conntrack_expect.c
@@ -395,7 +395,7 @@ static inline int __nf_ct_expect_check(s
struct net *net = nf_ct_exp_net(expect);
struct hlist_node *next;
unsigned int h;
- int ret = 1;
+ int ret = 0;
if (!master_help) {
ret = -ESHUTDOWN;
@@ -445,7 +445,7 @@ int nf_ct_expect_related_report(struct n
spin_lock_bh(&nf_conntrack_expect_lock);
ret = __nf_ct_expect_check(expect);
- if (ret <= 0)
+ if (ret < 0)
goto out;
ret = nf_ct_expect_insert(expect);
Patches currently in stable-queue which might be from jarno@xxxxxxx are
queue-4.4/netfilter-nf_ct_expect-change-__nf_ct_expect_check-return-value.patch