This is a note to let you know that I've just added the patch titled
net: sched: set xt_tgchk_param par.nft_compat as 0 in ipt_init_target
to the 4.9-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:
net-sched-set-xt_tgchk_param-par.nft_compat-as-0-in-ipt_init_target.patch
and it can be found in the queue-4.9 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 Fri Aug 11 09:10:20 PDT 2017
From: Xin Long <lucien.xin@xxxxxxxxx>
Date: Wed, 9 Aug 2017 18:15:19 +0800
Subject: net: sched: set xt_tgchk_param par.nft_compat as 0 in ipt_init_target
From: Xin Long <lucien.xin@xxxxxxxxx>
[ Upstream commit 96d9703050a0036a3360ec98bb41e107c90664fe ]
Commit 55917a21d0cc ("netfilter: x_tables: add context to know if
extension runs from nft_compat") introduced a member nft_compat to
xt_tgchk_param structure.
But it didn't set it's value for ipt_init_target. With unexpected
value in par.nft_compat, it may return unexpected result in some
target's checkentry.
This patch is to set all it's fields as 0 and only initialize the
non-zero fields in ipt_init_target.
v1->v2:
As Wang Cong's suggestion, fix it by setting all it's fields as
0 and only initializing the non-zero fields.
Fixes: 55917a21d0cc ("netfilter: x_tables: add context to know if extension runs from nft_compat")
Suggested-by: Cong Wang <xiyou.wangcong@xxxxxxxxx>
Signed-off-by: Xin Long <lucien.xin@xxxxxxxxx>
Signed-off-by: David S. Miller <davem@xxxxxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
net/sched/act_ipt.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- a/net/sched/act_ipt.c
+++ b/net/sched/act_ipt.c
@@ -49,8 +49,8 @@ static int ipt_init_target(struct xt_ent
return PTR_ERR(target);
t->u.kernel.target = target;
+ memset(&par, 0, sizeof(par));
par.table = table;
- par.entryinfo = NULL;
par.target = target;
par.targinfo = t->data;
par.hook_mask = hook;
Patches currently in stable-queue which might be from lucien.xin@xxxxxxxxx are
queue-4.9/net-sched-set-xt_tgchk_param-par.nft_compat-as-0-in-ipt_init_target.patch