Commit ec3bb890 authored by Nicolas Dichtel's avatar Nicolas Dichtel Committed by Steffen Klassert
Browse files

xfrm: fix dflt policy check when there is no policy configured 



When there is no policy configured on the system, the default policy is
checked in xfrm_route_forward. However, it was done with the wrong
direction (XFRM_POLICY_FWD instead of XFRM_POLICY_OUT).
The default policy for XFRM_POLICY_FWD was checked just before, with a call
to xfrm[46]_policy_check().

CC: stable@vger.kernel.org
Fixes: 2d151d39 ("xfrm: Add possibility to set the default to block if we have no policy")
Signed-off-by: default avatarNicolas Dichtel <nicolas.dichtel@6wind.com>
Signed-off-by: default avatarSteffen Klassert <steffen.klassert@secunet.com>
parent bcf141b2

include/net/xfrm.h

+1 −1
Original line number Diff line number Diff line
@@ -1162,7 +1162,7 @@ static inline int xfrm_route_forward(struct sk_buff *skb, unsigned short family) 
{

	struct net *net = dev_net(skb->dev);



	if (xfrm_default_allow(net, XFRM_POLICY_FWD))

	if (xfrm_default_allow(net, XFRM_POLICY_OUT))

		return !net->xfrm.policy_count[XFRM_POLICY_OUT] ||

			(skb_dst(skb)->flags & DST_NOXFRM) ||

			__xfrm_route_forward(skb, family);