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-rw-r--r--net/xfrm/xfrm_state.c8
1 files changed, 7 insertions, 1 deletions
diff --git a/net/xfrm/xfrm_state.c b/net/xfrm/xfrm_state.c
index 500b3391f474..1e80f68e2266 100644
--- a/net/xfrm/xfrm_state.c
+++ b/net/xfrm/xfrm_state.c
@@ -1534,8 +1534,12 @@ out:
err = -EINVAL;
spin_lock_bh(&x1->lock);
if (likely(x1->km.state == XFRM_STATE_VALID)) {
- if (x->encap && x1->encap)
+ if (x->encap && x1->encap &&
+ x->encap->encap_type == x1->encap->encap_type)
memcpy(x1->encap, x->encap, sizeof(*x1->encap));
+ else if (x->encap || x1->encap)
+ goto fail;
+
if (x->coaddr && x1->coaddr) {
memcpy(x1->coaddr, x->coaddr, sizeof(*x1->coaddr));
}
@@ -1552,6 +1556,8 @@ out:
x->km.state = XFRM_STATE_DEAD;
__xfrm_state_put(x);
}
+
+fail:
spin_unlock_bh(&x1->lock);
xfrm_state_put(x1);