diff --git a/security/selinux/hooks.c b/security/selinux/hooks.c
index 1dc935f7..33028b3 100644
--- a/security/selinux/hooks.c
+++ b/security/selinux/hooks.c
@@ -3591,6 +3591,11 @@
 	err = selinux_xfrm_decode_session(skb, &peersid, 0);
 	BUG_ON(err);
 
+	if (peersid == SECSID_NULL) {
+		req->secid = sksec->sid;
+		return 0;
+	}
+
 	err = security_sid_mls_copy(sksec->sid, peersid, &newsid);
 	if (err)
 		return err;