From: Linyu Yuan linyyuan@codeaurora.com
when skb_clone() or skb_copy_expand() fail, it should pull skb with lengh indicated by header, or not it will read network data and check it as header.
Cc: stable@vger.kernel.org Signed-off-by: Linyu Yuan linyyuan@codeaurora.com ---
v3: cc stable kernel v2: use scripts/get_maintainer.pl to get correct maintainer
drivers/usb/gadget/function/f_eem.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/usb/gadget/function/f_eem.c b/drivers/usb/gadget/function/f_eem.c index cfcc4e81fb77..28dd5f1fd106 100644 --- a/drivers/usb/gadget/function/f_eem.c +++ b/drivers/usb/gadget/function/f_eem.c @@ -495,7 +495,7 @@ static int eem_unwrap(struct gether *port, skb2 = skb_clone(skb, GFP_ATOMIC); if (unlikely(!skb2)) { DBG(cdev, "unable to unframe EEM packet\n"); - continue; + goto next; } skb_trim(skb2, len - ETH_FCS_LEN);
@@ -505,7 +505,7 @@ static int eem_unwrap(struct gether *port, GFP_ATOMIC); if (unlikely(!skb3)) { dev_kfree_skb_any(skb2); - continue; + goto next; } dev_kfree_skb_any(skb2); skb_queue_tail(list, skb3);