Hi, Just out of curisity, I was looking at Kernel 3.14, skb_clone function in f_ncm.c http://lxr.free-electrons.com/source/drivers/usb/gadget/f_ncm.c?v=3.14#L1063 QUERY : Shouldn't a kfree_skb(skb2); happen before goto err @1070 ? Is this not a memleak ? 1068 if (!skb_pull(skb2, index)) { 1069 ret = -EOVERFLOW; 1070 goto err; 1071 } Thanks, Pavi