On Mon, Sep 12, 2011 at 02:25:46PM +0400, Antony Pavlov wrote:
> Signed-off-by: Antony Pavlov <antonynpavlov@xxxxxxxxx>
Applied to master.
Sascha
> ---
> drivers/usb/core/usb.c | 10 ++++++++++
> 1 files changed, 10 insertions(+), 0 deletions(-)
>
> diff --git a/drivers/usb/core/usb.c b/drivers/usb/core/usb.c
> index b01a797..5dc8afe 100644
> --- a/drivers/usb/core/usb.c
> +++ b/drivers/usb/core/usb.c
> @@ -207,6 +207,16 @@ static int usb_parse_config(struct usb_device *dev, unsigned char *buffer, int c
> &buffer[index])->bInterfaceNumber != curr_if_num) {
> /* this is a new interface, copy new desc */
> ifno = dev->config.no_of_if;
> + /* if ifno > USB_MAXINTERFACES, then
> + * next memcpy() will corrupt dev->config
> + */
> + if (ifno > USB_MAXINTERFACES) {
> + printf("ifno = %d > "
> + "USB_MAXINTERFACES = %d !\n",
> + ifno,
> + USB_MAXINTERFACES);
> + break;
> + }
> dev->config.no_of_if++;
> memcpy(&dev->config.if_desc[ifno],
> &buffer[index], buffer[index]);
> --
> 1.7.5.4
>
>
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