Index: /trunk/src/VBox/HostDrivers/VBoxNetFlt/linux/VBoxNetFlt-linux.c
===================================================================
--- /trunk/src/VBox/HostDrivers/VBoxNetFlt/linux/VBoxNetFlt-linux.c	(revision 44099)
+++ /trunk/src/VBox/HostDrivers/VBoxNetFlt/linux/VBoxNetFlt-linux.c	(revision 44100)
@@ -787,4 +787,5 @@
          */
         Log2(("vboxNetFltLinuxPacketHandler: dropped loopback packet (cb=%u)\n", pBuf->len));
+        dev_kfree_skb(pBuf); /* We must 'consume' all packets we get (@bugref{6539})! */
         return 0;
     }
@@ -795,4 +796,5 @@
     {
         Log(("vboxNetFltLinuxPacketHandler: Devices do not match, pThis may be wrong! pThis=%p\n", pThis));
+        dev_kfree_skb(pBuf);
         return 0;
     }