Subject: Re: nf_reject_ipv4: module license 'unspecified' taints kernel

From: Pablo Neira Ayuso <[email-masked]>
Date: Fri, 10 Oct 2014 11:56:16 +0200

On Fri, Oct 10, 2014 at 05:19:04PM +0800, Dave Young wrote:
> Hi,
> 
> With today's linus tree, I got below kmsg:
> [   23.545204] nf_reject_ipv4: module license 'unspecified' taints kernel.
> 
> It could be caused by below commit:
> 
> commit c8d7b98bec43faaa6583c3135030be5eb4693acb
> Author: Pablo Neira Ayuso <[email-masked]>
> Date:   Fri Sep 26 14:35:15 2014 +0200
> 
>     netfilter: move nf_send_resetX() code to nf_reject_ipvX modules
>     
>     Move nf_send_reset() and nf_send_reset6() to nf_reject_ipv4 and
>     nf_reject_ipv6 respectively. This code is shared by x_tables and
>     nf_tables.
>     
>     Signed-off-by: Pablo Neira Ayuso <[email-masked]>

Patch attached, thanks for reporting.

P.S: Please, Cc [email-masked] in future reports, so
we make sure things don't get lost.
>>From d4358bcf64ba7a64d4de4e1dc5533c4c8f88ea82 Mon Sep 17 00:00:00 2001
From: Pablo Neira Ayuso <[email-masked]>
Date: Fri, 10 Oct 2014 11:25:20 +0200
Subject: [PATCH] netfilter: missing module license in the nf_reject_ipvX
 modules

[   23.545204] nf_reject_ipv4: module license 'unspecified' taints kernel.

Reported-by: Dave Young <[email-masked]>
Signed-off-by: Pablo Neira Ayuso <[email-masked]>
---
 net/ipv4/netfilter/nf_reject_ipv4.c |    3 +++
 net/ipv6/netfilter/nf_reject_ipv6.c |    4 ++++
 2 files changed, 7 insertions(+)

diff --git a/net/ipv4/netfilter/nf_reject_ipv4.c b/net/ipv4/netfilter/nf_reject_ipv4.c
index b023b4e..92b303d 100644
--- a/net/ipv4/netfilter/nf_reject_ipv4.c
+++ b/net/ipv4/netfilter/nf_reject_ipv4.c
@@ -6,6 +6,7 @@
  * published by the Free Software Foundation.
  */
 
+#include <linux/module.h>
 #include <net/ip.h>
 #include <net/tcp.h>
 #include <net/route.h>
@@ -125,3 +126,5 @@ void nf_send_reset(struct sk_buff *oldskb, int hook)
 	kfree_skb(nskb);
 }
 EXPORT_SYMBOL_GPL(nf_send_reset);
+
+MODULE_LICENSE("GPL");
diff --git a/net/ipv6/netfilter/nf_reject_ipv6.c b/net/ipv6/netfilter/nf_reject_ipv6.c
index 5f5f043..20d9def 100644
--- a/net/ipv6/netfilter/nf_reject_ipv6.c
+++ b/net/ipv6/netfilter/nf_reject_ipv6.c
@@ -5,6 +5,8 @@
  * it under the terms of the GNU General Public License version 2 as
  * published by the Free Software Foundation.
  */
+
+#include <linux/module.h>
 #include <net/ipv6.h>
 #include <net/ip6_route.h>
 #include <net/ip6_fib.h>
@@ -161,3 +163,5 @@ void nf_send_reset6(struct net *net, struct sk_buff *oldskb, int hook)
 		ip6_local_out(nskb);
 }
 EXPORT_SYMBOL_GPL(nf_send_reset6);
+
+MODULE_LICENSE("GPL");
-- 
1.7.10.4