Index: VirtualBox-5.1.28/src/VBox/HostDrivers/VBoxPci/linux/VBoxPci-linux.c
===================================================================
--- VirtualBox-5.1.28.orig/src/VBox/HostDrivers/VBoxPci/linux/VBoxPci-linux.c
+++ VirtualBox-5.1.28/src/VBox/HostDrivers/VBoxPci/linux/VBoxPci-linux.c
@@ -353,12 +353,17 @@ static void  vboxPciFileClose(struct fil
 static int vboxPciFileWrite(struct file* file, unsigned long long offset, unsigned char* data, unsigned int size)
 {
     int          ret;
+# if LINUX_VERSION_CODE >= KERNEL_VERSION(4, 14, 0)
+
+    ret = kernel_write(file, data, size, &offset);
+#else
     mm_segment_t fs_save;
 
     fs_save = get_fs();
     set_fs(get_ds());
     ret = vfs_write(file, data, size, &offset);
     set_fs(fs_save);
+#endif
     if (ret < 0)
         printk(KERN_DEBUG "vboxPciFileWrite: error %d\n", ret);
 
Index: VirtualBox-5.1.28/src/VBox/HostDrivers/VBoxNetFlt/linux/VBoxNetFlt-linux.c
===================================================================
--- VirtualBox-5.1.28.orig/src/VBox/HostDrivers/VBoxNetFlt/linux/VBoxNetFlt-linux.c
+++ VirtualBox-5.1.28/src/VBox/HostDrivers/VBoxNetFlt/linux/VBoxNetFlt-linux.c
@@ -124,6 +124,10 @@ typedef struct VBOXNETFLTNOTIFIER *PVBOX
 #  define bstats stats
 #  define qstats stats
 # endif
+#endif 
+
+# if LINUX_VERSION_CODE >= KERNEL_VERSION(4, 14, 0)
+#define SKB_GSO_UDP	0
 #endif
 
 #if LINUX_VERSION_CODE >= KERNEL_VERSION(3, 20, 0)
@@ -722,9 +726,11 @@ static struct sk_buff *vboxNetFltLinuxSk
         case PDMNETWORKGSOTYPE_IPV4_TCP:
             fGsoType = SKB_GSO_TCPV4;
             break;
+# if LINUX_VERSION_CODE < KERNEL_VERSION(4, 14, 0)
         case PDMNETWORKGSOTYPE_IPV4_UDP:
             fGsoType = SKB_GSO_UDP;
             break;
+#endif
         case PDMNETWORKGSOTYPE_IPV6_TCP:
             fGsoType = SKB_GSO_TCPV6;
             break;