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@xxxxxxxxxxxxxxx
Fixes: 2d151d39073a ("xfrm: Add possibility to set the default to block if we have no policy")
Signed-off-by: Nicolas Dichtel <nicolas.dichtel@xxxxxxxxx>
---
include/net/xfrm.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/include/net/xfrm.h b/include/net/xfrm.h
index 2308210793a0..55e574511af5 100644
--- a/include/net/xfrm.h
+++ b/include/net/xfrm.h
@@ -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);
--
2.33.0
