Jeff, I have submitte a fix for the same on linux-usb and netdev mailing list. Just waiting for review. Please review the same. http://www.spinics.net/lists/netdev/msg358605.html Cheers, Pavi On Mon, Jan 4, 2016 at 11:36 PM, Jeff Haran <Jeff.Haran@citrix.com> wrote:

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-----Original Message----- From: kernelnewbies-bounces@kernelnewbies.org [mailto:kernelnewbies- bounces@kernelnewbies.org] On Behalf Of pavi1729 Sent: Monday, December 28, 2015 6:16 AM To: kernelnewbies@kernelnewbies.org Subject: skb_clone related query

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

Looks like an skb leak to me. Though the fix would need to consider the case where skb2 was set equal to skb at line 1061 instead of being cloned.

Jeff Haran