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xfrm: Fix transport mode skb control buffer usage.

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A recent commit introduced a new struct xfrm_trans_cb
that is used with the sk_buff control buffer. Unfortunately
it placed the structure in front of the control buffer and
overlooked that the IPv4/IPv6 control buffer is still needed
for some layer 4 protocols. As a result the IPv4/IPv6 control
buffer is overwritten with this structure. Fix this by setting
a apropriate header in front of the structure.

Fixes acf568ee85 ("xfrm: Reinject transport-mode packets ...")
Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>
This commit is contained in:
Steffen Klassert 2018-03-19 07:15:39 +01:00
parent f8a554b4aa
commit 9a3fb9fb84
1 changed files with 6 additions and 0 deletions
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6
net/xfrm/xfrm_input.c
View File

@ -26,6 +26,12 @@ struct xfrm_trans_tasklet {
};
struct xfrm_trans_cb {
union {
struct inet_skb_parm h4;
#if IS_ENABLED(CONFIG_IPV6)
struct inet6_skb_parm h6;
#endif
} header;
int (*finish)(struct net *net, struct sock *sk, struct sk_buff *skb);
};