linux-kernel - [PATCH 3.19 005/177] ipv6: Fix fragment id assignment on LE arches.

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Message-Id: <20150316140813.339647826@linuxfoundation.org>
Date:	Mon, 16 Mar 2015 15:06:52 +0100
From:	Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:	linux-kernel@...r.kernel.org
Cc:	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	stable@...r.kernel.org, Vladislav Yasevich <vyasevic@...hat.com>,
	"David S. Miller" <davem@...emloft.net>
Subject: [PATCH 3.19 005/177] ipv6: Fix fragment id assignment on LE arches.

3.19-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Vlad Yasevich <vyasevich@...il.com>

[ Upstream commit 51f30770e50eb787200f30a79105e2615b379334 ]

Recent commit:
0508c07f5e0c94f38afd5434e8b2a55b84553077
Author: Vlad Yasevich <vyasevich@...il.com>
Date:   Tue Feb 3 16:36:15 2015 -0500

    ipv6: Select fragment id during UFO segmentation if not set.

Introduced a bug on LE in how ipv6 fragment id is assigned.
This was cought by nightly sparce check:

Resolve the following sparce error:
 net/ipv6/output_core.c:57:38: sparse: incorrect type in assignment
 (different base types)
   net/ipv6/output_core.c:57:38:    expected restricted __be32
[usertype] ip6_frag_id
   net/ipv6/output_core.c:57:38:    got unsigned int [unsigned]
[assigned] [usertype] id

Fixes: 0508c07f5e0c9 (ipv6: Select fragment id during UFO segmentation if not set.)
Signed-off-by: Vladislav Yasevich <vyasevic@...hat.com>
Signed-off-by: David S. Miller <davem@...emloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
---
 net/ipv6/output_core.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/net/ipv6/output_core.c
+++ b/net/ipv6/output_core.c
@@ -54,7 +54,7 @@ void ipv6_proxy_select_ident(struct sk_b
 
 	id = __ipv6_select_ident(ip6_proxy_idents_hashrnd,
 				 &addrs[1], &addrs[0]);
-	skb_shinfo(skb)->ip6_frag_id = id;
+	skb_shinfo(skb)->ip6_frag_id = htonl(id);
 }
 EXPORT_SYMBOL_GPL(ipv6_proxy_select_ident);
 


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