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/openbmc/linux/drivers/net/usb/ |
H A D | cdc_eem.c | c3b26fdf Wed Jun 16 18:32:32 CDT 2021 Linyu Yuan <linyyuan@codeaurora.org> net: cdc_eem: fix tx fixup skb leak
when usbnet transmit a skb, eem fixup it in eem_tx_fixup(), if skb_copy_expand() failed, it return NULL, usbnet_start_xmit() will have no chance to free original skb.
fix it by free orginal skb in eem_tx_fixup() first, then check skb clone status, if failed, return NULL to usbnet.
Fixes: 9f722c0978b0 ("usbnet: CDC EEM support (v5)") Signed-off-by: Linyu Yuan <linyyuan@codeaurora.org> Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Signed-off-by: David S. Miller <davem@davemloft.net>
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