8 files changed, 41 insertions, 20 deletions
diff --git a/net/core/dev.c b/net/core/dev.c
index b430f851f377..22f2640f559a 100644
--- a/net/core/dev.c
+++ b/net/core/dev.c
@@ -1184,7 +1184,21 @@ int dev_change_name(struct net_device *dev, const char *newname)
 	BUG_ON(!dev_net(dev));
 
 	net = dev_net(dev);
-	if (dev->flags & IFF_UP)
+
+	/* Some auto-enslaved devices e.g. failover slaves are
+	 * special, as userspace might rename the device after
+	 * the interface had been brought up and running since
+	 * the point kernel initiated auto-enslavement. Allow
+	 * live name change even when these slave devices are
+	 * up and running.
+	 *
+	 * Typically, users of these auto-enslaving devices
+	 * don't actually care about slave name change, as
+	 * they are supposed to operate on master interface
+	 * directly.
+	 */
+	if (dev->flags & IFF_UP &&
+	    likely(!(dev->priv_flags & IFF_LIVE_RENAME_OK)))
 		return -EBUSY;
 
 	write_seqcount_begin(&devnet_rename_seq);
diff --git a/net/core/failover.c b/net/core/failover.c
index 4a92a98ccce9..b5cd3c727285 100644
--- a/net/core/failover.c
+++ b/net/core/failover.c
@@ -80,14 +80,14 @@ static int failover_slave_register(struct net_device *slave_dev)
 		goto err_upper_link;
 	}
 
-	slave_dev->priv_flags |= IFF_FAILOVER_SLAVE;
+	slave_dev->priv_flags |= (IFF_FAILOVER_SLAVE | IFF_LIVE_RENAME_OK);
 
 	if (fops && fops->slave_register &&
 	    !fops->slave_register(slave_dev, failover_dev))
 		return NOTIFY_OK;
 
 	netdev_upper_dev_unlink(slave_dev, failover_dev);
-	slave_dev->priv_flags &= ~IFF_FAILOVER_SLAVE;
+	slave_dev->priv_flags &= ~(IFF_FAILOVER_SLAVE | IFF_LIVE_RENAME_OK);
 err_upper_link:
 	netdev_rx_handler_unregister(slave_dev);
 done:
@@ -121,7 +121,7 @@ int failover_slave_unregister(struct net_device *slave_dev)
 
 	netdev_rx_handler_unregister(slave_dev);
 	netdev_upper_dev_unlink(slave_dev, failover_dev);
-	slave_dev->priv_flags &= ~IFF_FAILOVER_SLAVE;
+	slave_dev->priv_flags &= ~(IFF_FAILOVER_SLAVE | IFF_LIVE_RENAME_OK);
 
 	if (fops && fops->slave_unregister &&
 	    !fops->slave_unregister(slave_dev, failover_dev))
diff --git a/net/core/filter.c b/net/core/filter.c
index 95a27fdf9a40..07687e2a2e66 100644
--- a/net/core/filter.c
+++ b/net/core/filter.c
@@ -4462,6 +4462,8 @@ BPF_CALL_3(bpf_bind, struct bpf_sock_addr_kern *, ctx, struct sockaddr *, addr,
 	 * Only binding to IP is supported.
 	 */
 	err = -EINVAL;
+	if (addr_len < offsetofend(struct sockaddr, sa_family))
+		return err;
 	if (addr->sa_family == AF_INET) {
 		if (addr_len < sizeof(struct sockaddr_in))
 			return err;
diff --git a/net/core/net-sysfs.c b/net/core/net-sysfs.c
index c14f0dc0157c..e4fd68389d6f 100644
--- a/net/core/net-sysfs.c
+++ b/net/core/net-sysfs.c
@@ -1747,20 +1747,16 @@ int netdev_register_kobject(struct net_device *ndev)
 
 	error = device_add(dev);
 	if (error)
-		goto error_put_device;
+		return error;
 
 	error = register_queue_kobjects(ndev);
-	if (error)
-		goto error_device_del;
+	if (error) {
+		device_del(dev);
+		return error;
+	}
 
 	pm_runtime_set_memalloc_noio(dev, true);
 
-	return 0;
-
-error_device_del:
-	device_del(dev);
-error_put_device:
-	put_device(dev);
 	return error;
 }
 
diff --git a/net/core/ptp_classifier.c b/net/core/ptp_classifier.c
index 703cf76aa7c2..7109c168b5e0 100644
--- a/net/core/ptp_classifier.c
+++ b/net/core/ptp_classifier.c
@@ -185,9 +185,10 @@ void __init ptp_classifier_init(void)
 		{ 0x16,  0,  0, 0x00000000 },
 		{ 0x06,  0,  0, 0x00000000 },
 	};
-	struct sock_fprog_kern ptp_prog = {
-		.len = ARRAY_SIZE(ptp_filter), .filter = ptp_filter,
-	};
+	struct sock_fprog_kern ptp_prog;
+
+	ptp_prog.len = ARRAY_SIZE(ptp_filter);
+	ptp_prog.filter = ptp_filter;
 
 	BUG_ON(bpf_prog_create(&ptp_insns, &ptp_prog));
 }
diff --git a/net/core/rtnetlink.c b/net/core/rtnetlink.c
index f9b964fd4e4d..5fa5bf3e9945 100644
--- a/net/core/rtnetlink.c
+++ b/net/core/rtnetlink.c
@@ -4951,7 +4951,7 @@ static int rtnl_valid_stats_req(const struct nlmsghdr *nlh, bool strict_check,
 {
 	struct if_stats_msg *ifsm;
 
-	if (nlh->nlmsg_len < sizeof(*ifsm)) {
+	if (nlh->nlmsg_len < nlmsg_msg_size(sizeof(*ifsm))) {
 		NL_SET_ERR_MSG(extack, "Invalid header for stats dump");
 		return -EINVAL;
 	}
diff --git a/net/core/skbuff.c b/net/core/skbuff.c
index 9901f5322852..a083e188374f 100644
--- a/net/core/skbuff.c
+++ b/net/core/skbuff.c
@@ -5082,7 +5082,8 @@ EXPORT_SYMBOL_GPL(skb_gso_validate_mac_len);
 
 static struct sk_buff *skb_reorder_vlan_header(struct sk_buff *skb)
 {
-	int mac_len;
+	int mac_len, meta_len;
+	void *meta;
 
 	if (skb_cow(skb, skb_headroom(skb)) < 0) {
 		kfree_skb(skb);
@@ -5094,6 +5095,13 @@ static struct sk_buff *skb_reorder_vlan_header(struct sk_buff *skb)
 		memmove(skb_mac_header(skb) + VLAN_HLEN, skb_mac_header(skb),
 			mac_len - VLAN_HLEN - ETH_TLEN);
 	}
+
+	meta_len = skb_metadata_len(skb);
+	if (meta_len) {
+		meta = skb_metadata_end(skb) - meta_len;
+		memmove(meta + VLAN_HLEN, meta, meta_len);
+	}
+
 	skb->mac_header += VLAN_HLEN;
 	return skb;
 }
diff --git a/net/core/sock.c b/net/core/sock.c
index 782343bb925b..067878a1e4c5 100644
--- a/net/core/sock.c
+++ b/net/core/sock.c
@@ -348,7 +348,7 @@ static int sock_get_timeout(long timeo, void *optval, bool old_timeval)
 		tv.tv_usec = ((timeo % HZ) * USEC_PER_SEC) / HZ;
 	}
 
-	if (in_compat_syscall() && !COMPAT_USE_64BIT_TIME) {
+	if (old_timeval && in_compat_syscall() && !COMPAT_USE_64BIT_TIME) {
 		struct old_timeval32 tv32 = { tv.tv_sec, tv.tv_usec };
 		*(struct old_timeval32 *)optval = tv32;
 		return sizeof(tv32);
@@ -372,7 +372,7 @@ static int sock_set_timeout(long *timeo_p, char __user *optval, int optlen, bool
 {
 	struct __kernel_sock_timeval tv;
 
-	if (in_compat_syscall() && !COMPAT_USE_64BIT_TIME) {
+	if (old_timeval && in_compat_syscall() && !COMPAT_USE_64BIT_TIME) {
 		struct old_timeval32 tv32;
 
 		if (optlen < sizeof(tv32))