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authorHajime Tazaki <tazaki@sfc.wide.ad.jp>2015-02-04 23:31:10 +0900
committerSteffen Klassert <steffen.klassert@secunet.com>2015-02-06 07:00:32 +0100
commitcd3bafc73d11eb51cb2d3691629718431e1768ce (patch)
treebad15e2457bb2da9d4e465a74e35b9aca7488f6b /net/ipv6/xfrm6_policy.c
parent59343cd7c4809cf7598789e1cd14563780ae4239 (diff)
xfrm6: Fix a offset value for network header in _decode_session6
When a network-layer header has multiple IPv6 extension headers, then offset for mobility header goes wrong. This regression breaks an xfrm policy lookup for a particular receive packet. Binding update packets of Mobile IPv6 are all discarded without this fix. Fixes: de3b7a06dfe1 ("xfrm6: Fix transport header offset in _decode_session6.") Signed-off-by: Hajime Tazaki <tazaki@sfc.wide.ad.jp> Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>
Diffstat (limited to 'net/ipv6/xfrm6_policy.c')
-rw-r--r--net/ipv6/xfrm6_policy.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/net/ipv6/xfrm6_policy.c b/net/ipv6/xfrm6_policy.c
index 48bf5a06847b..8d2d01b4800a 100644
--- a/net/ipv6/xfrm6_policy.c
+++ b/net/ipv6/xfrm6_policy.c
@@ -200,6 +200,7 @@ _decode_session6(struct sk_buff *skb, struct flowi *fl, int reverse)
#if IS_ENABLED(CONFIG_IPV6_MIP6)
case IPPROTO_MH:
+ offset += ipv6_optlen(exthdr);
if (!onlyproto && pskb_may_pull(skb, nh + offset + 3 - skb->data)) {
struct ip6_mh *mh;