diff options
| author | Linyu Yuan <linyyuan@codeaurora.com> | 2021-06-09 07:35:47 +0800 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2021-06-16 12:01:42 +0200 |
| commit | 6bf8ff7d05204f0ec1842016280fedc00dd6b4d1 (patch) | |
| tree | cfbee424bbe91810e897c61e74c9b8cb0851a726 | |
| parent | 21bee94fb9e4ace33f5fef5645b8a134efa35043 (diff) | |
usb: gadget: eem: fix wrong eem header operation
commit 305f670846a31a261462577dd0b967c4fa796871 upstream.
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>
Link: https://lore.kernel.org/r/20210608233547.3767-1-linyyuan@codeaurora.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| -rw-r--r-- | drivers/usb/gadget/function/f_eem.c | 4 |
1 files 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); |