4 files changed, 7 insertions, 0 deletions

diff --git a/net/ipv4/xfrm4_policy.c b/net/ipv4/xfrm4_policy.c
index 42d8ded0f96a..479598566f1d 100644
--- a/net/ipv4/xfrm4_policy.c
+++ b/net/ipv4/xfrm4_policy.c
@@ -93,6 +93,7 @@ __xfrm4_bundle_create(struct xfrm_policy *policy, struct xfrm_state **xfrm, int
 
                 xdst = (struct xfrm_dst *)dst1;
                 xdst->route = &rt->u.dst;
+                xdst->genid = xfrm[i]->genid;
 
                 dst1->next = dst_prev;
                 dst_prev = dst1;
diff --git a/net/ipv6/xfrm6_policy.c b/net/ipv6/xfrm6_policy.c
index 98c2fe449b3f..9391c4c94feb 100644
--- a/net/ipv6/xfrm6_policy.c
+++ b/net/ipv6/xfrm6_policy.c
@@ -149,6 +149,7 @@ __xfrm6_bundle_create(struct xfrm_policy *policy, struct xfrm_state **xfrm, int
 
                 xdst = (struct xfrm_dst *)dst1;
                 xdst->route = &rt->u.dst;
+                xdst->genid = xfrm[i]->genid;
                 if (rt->rt6i_node)
                         xdst->route_cookie = rt->rt6i_node->fn_sernum;
 
diff --git a/net/xfrm/xfrm_policy.c b/net/xfrm/xfrm_policy.c
index 1732159ffd01..7fc6944ee36f 100644
--- a/net/xfrm/xfrm_policy.c
+++ b/net/xfrm/xfrm_policy.c
@@ -1536,6 +1536,8 @@ int xfrm_bundle_ok(struct xfrm_dst *first, struct flowi *fl, int family, int str
                         return 0;
                 if (dst->xfrm->km.state != XFRM_STATE_VALID)
                         return 0;
+                if (xdst->genid != dst->xfrm->genid)
+                        return 0;
 
                 if (strict && fl && dst->xfrm->props.mode != XFRM_MODE_TUNNEL &&
                     !xfrm_state_addr_flow_check(dst->xfrm, fl, family))
diff --git a/net/xfrm/xfrm_state.c b/net/xfrm/xfrm_state.c
index 445263c54c94..535d43c14720 100644
--- a/net/xfrm/xfrm_state.c
+++ b/net/xfrm/xfrm_state.c
@@ -53,6 +53,7 @@ static struct hlist_head *xfrm_state_byspi __read_mostly;
 static unsigned int xfrm_state_hmask __read_mostly;
 static unsigned int xfrm_state_hashmax __read_mostly = 1 * 1024 * 1024;
 static unsigned int xfrm_state_num;
+static unsigned int xfrm_state_genid;
 
 static inline unsigned int __xfrm4_dst_hash(xfrm_address_t *addr, unsigned int hmask)
 {
@@ -745,6 +746,8 @@ static void __xfrm_state_insert(struct xfrm_state *x)
 {
         unsigned int h = xfrm_dst_hash(&x->id.daddr, x->props.family);
 
+        x->genid = ++xfrm_state_genid;
+
         hlist_add_head(&x->bydst, xfrm_state_bydst+h);
         xfrm_state_hold(x);