diff --git a/include/net/xfrm.h b/include/net/xfrm.h
index 7e7e2b0d2915..01f5bc144ee5 100644
--- a/include/net/xfrm.h
+++ b/include/net/xfrm.h
@@ -631,7 +631,8 @@ struct xfrm_mgr {
 					   u8 dir, u8 type,
 					   const struct xfrm_migrate *m,
 					   int num_bundles,
-					   const struct xfrm_kmaddress *k);
+					   const struct xfrm_kmaddress *k,
+					   const struct xfrm_encap_tmpl *encap);
 	bool			(*is_alive)(const struct km_event *c);
 };
 
@@ -1675,13 +1676,16 @@ int xfrm_sk_policy_insert(struct sock *sk, int dir, struct xfrm_policy *pol);
 #ifdef CONFIG_XFRM_MIGRATE
 int km_migrate(const struct xfrm_selector *sel, u8 dir, u8 type,
 	       const struct xfrm_migrate *m, int num_bundles,
-	       const struct xfrm_kmaddress *k);
+	       const struct xfrm_kmaddress *k,
+	       const struct xfrm_encap_tmpl *encap);
 struct xfrm_state *xfrm_migrate_state_find(struct xfrm_migrate *m, struct net *net);
 struct xfrm_state *xfrm_state_migrate(struct xfrm_state *x,
-				      struct xfrm_migrate *m);
+				      struct xfrm_migrate *m,
+				      struct xfrm_encap_tmpl *encap);
 int xfrm_migrate(const struct xfrm_selector *sel, u8 dir, u8 type,
 		 struct xfrm_migrate *m, int num_bundles,
-		 struct xfrm_kmaddress *k, struct net *net);
+		 struct xfrm_kmaddress *k, struct net *net,
+		 struct xfrm_encap_tmpl *encap);
 #endif
 
 int km_new_mapping(struct xfrm_state *x, xfrm_address_t *ipaddr, __be16 sport);
diff --git a/net/ipv4/ah4.c b/net/ipv4/ah4.c
index e8f862358518..37db44f60718 100644
--- a/net/ipv4/ah4.c
+++ b/net/ipv4/ah4.c
@@ -1,5 +1,6 @@
 #define pr_fmt(fmt) "IPsec: " fmt
 
+#include <crypto/algapi.h>
 #include <crypto/hash.h>
 #include <linux/err.h>
 #include <linux/module.h>
@@ -279,7 +280,7 @@ static void ah_input_done(struct crypto_async_request *base, int err)
 	auth_data = ah_tmp_auth(work_iph, ihl);
 	icv = ah_tmp_icv(ahp->ahash, auth_data, ahp->icv_trunc_len);
 
-	err = memcmp(icv, auth_data, ahp->icv_trunc_len) ? -EBADMSG: 0;
+	err = crypto_memneq(icv, auth_data, ahp->icv_trunc_len) ? -EBADMSG : 0;
 	if (err)
 		goto out;
 
@@ -417,7 +418,7 @@ static int ah_input(struct xfrm_state *x, struct sk_buff *skb)
 		goto out_free;
 	}
 
-	err = memcmp(icv, auth_data, ahp->icv_trunc_len) ? -EBADMSG: 0;
+	err = crypto_memneq(icv, auth_data, ahp->icv_trunc_len) ? -EBADMSG : 0;
 	if (err)
 		goto out_free;
 
diff --git a/net/ipv6/ah6.c b/net/ipv6/ah6.c
index 755f38271dd5..7802b72196f3 100644
--- a/net/ipv6/ah6.c
+++ b/net/ipv6/ah6.c
@@ -25,6 +25,7 @@
 
 #define pr_fmt(fmt) "IPv6: " fmt
 
+#include <crypto/algapi.h>
 #include <crypto/hash.h>
 #include <linux/module.h>
 #include <linux/slab.h>
@@ -483,7 +484,7 @@ static void ah6_input_done(struct crypto_async_request *base, int err)
 	auth_data = ah_tmp_auth(work_iph, hdr_len);
 	icv = ah_tmp_icv(ahp->ahash, auth_data, ahp->icv_trunc_len);
 
-	err = memcmp(icv, auth_data, ahp->icv_trunc_len) ? -EBADMSG : 0;
+	err = crypto_memneq(icv, auth_data, ahp->icv_trunc_len) ? -EBADMSG : 0;
 	if (err)
 		goto out;
 
@@ -631,7 +632,7 @@ static int ah6_input(struct xfrm_state *x, struct sk_buff *skb)
 		goto out_free;
 	}
 
-	err = memcmp(icv, auth_data, ahp->icv_trunc_len) ? -EBADMSG : 0;
+	err = crypto_memneq(icv, auth_data, ahp->icv_trunc_len) ? -EBADMSG : 0;
 	if (err)
 		goto out_free;
 
diff --git a/net/ipv6/esp6.c b/net/ipv6/esp6.c
index d8b40ff4b2e6..71faffdd55d9 100644
--- a/net/ipv6/esp6.c
+++ b/net/ipv6/esp6.c
@@ -118,7 +118,6 @@ static inline struct scatterlist *esp_req_sg(struct crypto_aead *aead,
 
 static void esp_ssg_unref(struct xfrm_state *x, void *tmp)
 {
-	__be32 *seqhi;
 	struct crypto_aead *aead = x->data;
 	int seqhilen = 0;
 	u8 *iv;
@@ -128,7 +127,6 @@ static void esp_ssg_unref(struct xfrm_state *x, void *tmp)
 	if (x->props.flags & XFRM_STATE_ESN)
 		seqhilen += sizeof(__be32);
 
-	seqhi = esp_tmp_seqhi(tmp);
 	iv = esp_tmp_iv(aead, tmp, seqhilen);
 	req = esp_tmp_req(aead, iv);
 
@@ -224,12 +222,9 @@ int esp6_output_head(struct xfrm_state *x, struct sk_buff *skb, struct esp_info
 	u8 *vaddr;
 	int nfrags;
 	struct page *page;
-	struct ip_esp_hdr *esph;
 	struct sk_buff *trailer;
 	int tailen = esp->tailen;
 
-	esph = ip_esp_hdr(skb);
-
 	if (!skb_cloned(skb)) {
 		if (tailen <= skb_availroom(skb)) {
 			nfrags = 1;
diff --git a/net/key/af_key.c b/net/key/af_key.c
index daa4e90dc4db..ce9b8565d825 100644
--- a/net/key/af_key.c
+++ b/net/key/af_key.c
@@ -2589,7 +2589,7 @@ static int pfkey_migrate(struct sock *sk, struct sk_buff *skb,
 	}
 
 	return xfrm_migrate(&sel, dir, XFRM_POLICY_TYPE_MAIN, m, i,
-			    kma ? &k : NULL, net);
+			    kma ? &k : NULL, net, NULL);
 
  out:
 	return err;
@@ -3488,7 +3488,8 @@ static int set_ipsecrequest(struct sk_buff *skb,
 #ifdef CONFIG_NET_KEY_MIGRATE
 static int pfkey_send_migrate(const struct xfrm_selector *sel, u8 dir, u8 type,
 			      const struct xfrm_migrate *m, int num_bundles,
-			      const struct xfrm_kmaddress *k)
+			      const struct xfrm_kmaddress *k,
+			      const struct xfrm_encap_tmpl *encap)
 {
 	int i;
 	int sasize_sel;
@@ -3598,7 +3599,8 @@ err:
 #else
 static int pfkey_send_migrate(const struct xfrm_selector *sel, u8 dir, u8 type,
 			      const struct xfrm_migrate *m, int num_bundles,
-			      const struct xfrm_kmaddress *k)
+			      const struct xfrm_kmaddress *k,
+			      const struct xfrm_encap_tmpl *encap)
 {
 	return -ENOPROTOOPT;
 }
diff --git a/net/xfrm/xfrm_device.c b/net/xfrm/xfrm_device.c
index 574e6f32f94f..6d4a60d1bf19 100644
--- a/net/xfrm/xfrm_device.c
+++ b/net/xfrm/xfrm_device.c
@@ -138,7 +138,7 @@ ok:
 }
 EXPORT_SYMBOL_GPL(xfrm_dev_offload_ok);
 
-int xfrm_dev_register(struct net_device *dev)
+static int xfrm_dev_register(struct net_device *dev)
 {
 	if ((dev->features & NETIF_F_HW_ESP) && !dev->xfrmdev_ops)
 		return NOTIFY_BAD;
diff --git a/net/xfrm/xfrm_policy.c b/net/xfrm/xfrm_policy.c
index af8e38f47b5b..a3dc7ab0b7ed 100644
--- a/net/xfrm/xfrm_policy.c
+++ b/net/xfrm/xfrm_policy.c
@@ -3279,11 +3279,6 @@ static int xfrm_migrate_check(const struct xfrm_migrate *m, int num_migrate)
 		return -EINVAL;
 
 	for (i = 0; i < num_migrate; i++) {
-		if (xfrm_addr_equal(&m[i].old_daddr, &m[i].new_daddr,
-				    m[i].old_family) &&
-		    xfrm_addr_equal(&m[i].old_saddr, &m[i].new_saddr,
-				    m[i].old_family))
-			return -EINVAL;
 		if (xfrm_addr_any(&m[i].new_daddr, m[i].new_family) ||
 		    xfrm_addr_any(&m[i].new_saddr, m[i].new_family))
 			return -EINVAL;
@@ -3307,7 +3302,8 @@ static int xfrm_migrate_check(const struct xfrm_migrate *m, int num_migrate)
 
 int xfrm_migrate(const struct xfrm_selector *sel, u8 dir, u8 type,
 		 struct xfrm_migrate *m, int num_migrate,
-		 struct xfrm_kmaddress *k, struct net *net)
+		 struct xfrm_kmaddress *k, struct net *net,
+		 struct xfrm_encap_tmpl *encap)
 {
 	int i, err, nx_cur = 0, nx_new = 0;
 	struct xfrm_policy *pol = NULL;
@@ -3330,7 +3326,8 @@ int xfrm_migrate(const struct xfrm_selector *sel, u8 dir, u8 type,
 		if ((x = xfrm_migrate_state_find(mp, net))) {
 			x_cur[nx_cur] = x;
 			nx_cur++;
-			if ((xc = xfrm_state_migrate(x, mp))) {
+			xc = xfrm_state_migrate(x, mp, encap);
+			if (xc) {
 				x_new[nx_new] = xc;
 				nx_new++;
 			} else {
@@ -3351,7 +3348,7 @@ int xfrm_migrate(const struct xfrm_selector *sel, u8 dir, u8 type,
 	}
 
 	/* Stage 5 - announce */
-	km_migrate(sel, dir, type, m, num_migrate, k);
+	km_migrate(sel, dir, type, m, num_migrate, k, encap);
 
 	xfrm_pol_put(pol);
 
diff --git a/net/xfrm/xfrm_state.c b/net/xfrm/xfrm_state.c
index 2e291bc5f1fc..4a28f669c915 100644
--- a/net/xfrm/xfrm_state.c
+++ b/net/xfrm/xfrm_state.c
@@ -1309,7 +1309,8 @@ out:
 EXPORT_SYMBOL(xfrm_state_add);
 
 #ifdef CONFIG_XFRM_MIGRATE
-static struct xfrm_state *xfrm_state_clone(struct xfrm_state *orig)
+static struct xfrm_state *xfrm_state_clone(struct xfrm_state *orig,
+					   struct xfrm_encap_tmpl *encap)
 {
 	struct net *net = xs_net(orig);
 	struct xfrm_state *x = xfrm_state_alloc(net);
@@ -1351,8 +1352,14 @@ static struct xfrm_state *xfrm_state_clone(struct xfrm_state *orig)
 	}
 	x->props.calgo = orig->props.calgo;
 
-	if (orig->encap) {
-		x->encap = kmemdup(orig->encap, sizeof(*x->encap), GFP_KERNEL);
+	if (encap || orig->encap) {
+		if (encap)
+			x->encap = kmemdup(encap, sizeof(*x->encap),
+					GFP_KERNEL);
+		else
+			x->encap = kmemdup(orig->encap, sizeof(*x->encap),
+					GFP_KERNEL);
+
 		if (!x->encap)
 			goto error;
 	}
@@ -1442,11 +1449,12 @@ struct xfrm_state *xfrm_migrate_state_find(struct xfrm_migrate *m, struct net *n
 EXPORT_SYMBOL(xfrm_migrate_state_find);
 
 struct xfrm_state *xfrm_state_migrate(struct xfrm_state *x,
-				      struct xfrm_migrate *m)
+				      struct xfrm_migrate *m,
+				      struct xfrm_encap_tmpl *encap)
 {
 	struct xfrm_state *xc;
 
-	xc = xfrm_state_clone(x);
+	xc = xfrm_state_clone(x, encap);
 	if (!xc)
 		return NULL;
 
@@ -1958,7 +1966,8 @@ EXPORT_SYMBOL(km_policy_expired);
 #ifdef CONFIG_XFRM_MIGRATE
 int km_migrate(const struct xfrm_selector *sel, u8 dir, u8 type,
 	       const struct xfrm_migrate *m, int num_migrate,
-	       const struct xfrm_kmaddress *k)
+	       const struct xfrm_kmaddress *k,
+	       const struct xfrm_encap_tmpl *encap)
 {
 	int err = -EINVAL;
 	int ret;
@@ -1967,7 +1976,8 @@ int km_migrate(const struct xfrm_selector *sel, u8 dir, u8 type,
 	rcu_read_lock();
 	list_for_each_entry_rcu(km, &xfrm_km_list, list) {
 		if (km->migrate) {
-			ret = km->migrate(sel, dir, type, m, num_migrate, k);
+			ret = km->migrate(sel, dir, type, m, num_migrate, k,
+					  encap);
 			if (!ret)
 				err = ret;
 		}
@@ -2025,13 +2035,9 @@ int xfrm_user_policy(struct sock *sk, int optname, u8 __user *optval, int optlen
 	if (optlen <= 0 || optlen > PAGE_SIZE)
 		return -EMSGSIZE;
 
-	data = kmalloc(optlen, GFP_KERNEL);
-	if (!data)
-		return -ENOMEM;
-
-	err = -EFAULT;
-	if (copy_from_user(data, optval, optlen))
-		goto out;
+	data = memdup_user(optval, optlen);
+	if (IS_ERR(data))
+		return PTR_ERR(data);
 
 	err = -EINVAL;
 	rcu_read_lock();
@@ -2049,7 +2055,6 @@ int xfrm_user_policy(struct sock *sk, int optname, u8 __user *optval, int optlen
 		err = 0;
 	}
 
-out:
 	kfree(data);
 	return err;
 }
diff --git a/net/xfrm/xfrm_user.c b/net/xfrm/xfrm_user.c
index 38614df33ec8..6197c7231bc7 100644
--- a/net/xfrm/xfrm_user.c
+++ b/net/xfrm/xfrm_user.c
@@ -2243,6 +2243,7 @@ static int xfrm_do_migrate(struct sk_buff *skb, struct nlmsghdr *nlh,
 	int err;
 	int n = 0;
 	struct net *net = sock_net(skb->sk);
+	struct xfrm_encap_tmpl  *encap = NULL;
 
 	if (attrs[XFRMA_MIGRATE] == NULL)
 		return -EINVAL;
@@ -2260,9 +2261,18 @@ static int xfrm_do_migrate(struct sk_buff *skb, struct nlmsghdr *nlh,
 	if (!n)
 		return 0;
 
-	xfrm_migrate(&pi->sel, pi->dir, type, m, n, kmp, net);
+	if (attrs[XFRMA_ENCAP]) {
+		encap = kmemdup(nla_data(attrs[XFRMA_ENCAP]),
+				sizeof(*encap), GFP_KERNEL);
+		if (!encap)
+			return 0;
+	}
 
-	return 0;
+	err = xfrm_migrate(&pi->sel, pi->dir, type, m, n, kmp, net, encap);
+
+	kfree(encap);
+
+	return err;
 }
 #else
 static int xfrm_do_migrate(struct sk_buff *skb, struct nlmsghdr *nlh,
@@ -2304,17 +2314,20 @@ static int copy_to_user_kmaddress(const struct xfrm_kmaddress *k, struct sk_buff
 	return nla_put(skb, XFRMA_KMADDRESS, sizeof(uk), &uk);
 }
 
-static inline size_t xfrm_migrate_msgsize(int num_migrate, int with_kma)
+static inline size_t xfrm_migrate_msgsize(int num_migrate, int with_kma,
+					  int with_encp)
 {
 	return NLMSG_ALIGN(sizeof(struct xfrm_userpolicy_id))
 	      + (with_kma ? nla_total_size(sizeof(struct xfrm_kmaddress)) : 0)
+	      + (with_encp ? nla_total_size(sizeof(struct xfrm_encap_tmpl)) : 0)
 	      + nla_total_size(sizeof(struct xfrm_user_migrate) * num_migrate)
 	      + userpolicy_type_attrsize();
 }
 
 static int build_migrate(struct sk_buff *skb, const struct xfrm_migrate *m,
 			 int num_migrate, const struct xfrm_kmaddress *k,
-			 const struct xfrm_selector *sel, u8 dir, u8 type)
+			 const struct xfrm_selector *sel,
+			 const struct xfrm_encap_tmpl *encap, u8 dir, u8 type)
 {
 	const struct xfrm_migrate *mp;
 	struct xfrm_userpolicy_id *pol_id;
@@ -2336,6 +2349,11 @@ static int build_migrate(struct sk_buff *skb, const struct xfrm_migrate *m,
 		if (err)
 			goto out_cancel;
 	}
+	if (encap) {
+		err = nla_put(skb, XFRMA_ENCAP, sizeof(*encap), encap);
+		if (err)
+			goto out_cancel;
+	}
 	err = copy_to_user_policy_type(type, skb);
 	if (err)
 		goto out_cancel;
@@ -2355,17 +2373,19 @@ out_cancel:
 
 static int xfrm_send_migrate(const struct xfrm_selector *sel, u8 dir, u8 type,
 			     const struct xfrm_migrate *m, int num_migrate,
-			     const struct xfrm_kmaddress *k)
+			     const struct xfrm_kmaddress *k,
+			     const struct xfrm_encap_tmpl *encap)
 {
 	struct net *net = &init_net;
 	struct sk_buff *skb;
 
-	skb = nlmsg_new(xfrm_migrate_msgsize(num_migrate, !!k), GFP_ATOMIC);
+	skb = nlmsg_new(xfrm_migrate_msgsize(num_migrate, !!k, !!encap),
+			GFP_ATOMIC);
 	if (skb == NULL)
 		return -ENOMEM;
 
 	/* build migrate */
-	if (build_migrate(skb, m, num_migrate, k, sel, dir, type) < 0)
+	if (build_migrate(skb, m, num_migrate, k, sel, encap, dir, type) < 0)
 		BUG();
 
 	return xfrm_nlmsg_multicast(net, skb, 0, XFRMNLGRP_MIGRATE);
@@ -2373,7 +2393,8 @@ static int xfrm_send_migrate(const struct xfrm_selector *sel, u8 dir, u8 type,
 #else
 static int xfrm_send_migrate(const struct xfrm_selector *sel, u8 dir, u8 type,
 			     const struct xfrm_migrate *m, int num_migrate,
-			     const struct xfrm_kmaddress *k)
+			     const struct xfrm_kmaddress *k,
+			     const struct xfrm_encap_tmpl *encap)
 {
 	return -ENOPROTOOPT;
 }