On Fri, Dec 13, 2013 at 01:42:05PM +0000, Mark Brown wrote:
> On Fri, Dec 13, 2013 at 02:34:53PM +0100, Hannes Frederic Sowa wrote:
>
> > Sorry, I don't know which version the LTS kernel is. Upstream does not use
> > sk_buff_data_t for mac_header any more.
>
> This is with v3.10.
The change happend in 3.11. So I guess it was an oversight while backporting.
Following patch should help and should get backported to all stable kernels
<= 3.10.
[PATCH stable] ipv6: fix illegal mac_header comparison on 32bit
Signed-off-by: Hannes Frederic Sowa <hannes@xxxxxxxxxxxxxxxxxxx>
---
Patch intended for stable kernel <= 3.10.
net/ipv6/udp_offload.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/net/ipv6/udp_offload.c b/net/ipv6/udp_offload.c
index e7359f9..e15a357 100644
--- a/net/ipv6/udp_offload.c
+++ b/net/ipv6/udp_offload.c
@@ -90,7 +90,7 @@ static struct sk_buff *udp6_ufo_fragment(struct sk_buff *skb,
/* Check if there is enough headroom to insert fragment header. */
tnl_hlen = skb_tnl_header_len(skb);
- if (skb->mac_header < (tnl_hlen + frag_hdr_sz)) {
+ if (skb_mac_header(skb) < skb->head + tnl_hlen + frag_hdr_sz) {
if (gso_pskb_expand_head(skb, tnl_hlen + frag_hdr_sz))
goto out;
}
--
1.8.3.1
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