[PATCH] possible unaligned packet header caused by ip_route_me_harder()->pskb_expand_head()

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> git://1984.lsi.us.es/net/.git

OK. Here is the patch based on above git tree.


Signed-off-by: Paul Guo <ggang@xxxxxxxxxx>
---
 net/ipv4/netfilter.c |    3 ++-
 1 files changed, 2 insertions(+), 1 deletions(-)

diff --git a/net/ipv4/netfilter.c b/net/ipv4/netfilter.c
index 929b27b..0dcb0fa 100644
--- a/net/ipv4/netfilter.c
+++ b/net/ipv4/netfilter.c
@@ -63,7 +63,8 @@ int ip_route_me_harder(struct sk_buff *skb, unsigned addr_type)
 	/* Change in oif may mean change in hh_len. */
 	hh_len = skb_dst(skb)->dev->hard_header_len;
 	if (skb_headroom(skb) < hh_len &&
-	    pskb_expand_head(skb, hh_len - skb_headroom(skb), 0, GFP_ATOMIC))
+	    pskb_expand_head(skb, HH_DATA_ALIGN(hh_len - skb_headroom(skb)),
+	    		     0, GFP_ATOMIC))
 		return -1;
 
 	return 0;
-- 
1.6.5.2
--
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