Re: [PATCH v5] usb: gadget: uvc: add validate and fix function for uvc response

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On Wed, Oct 26, 2022 at 12:26:57AM +0200, Michael Grzeschik wrote:
> When the userspace gets the setup requests for UVC_GET_CUR UVC_GET_MIN,
> UVC_GET_MAX, UVC_GET_DEF it will fill out the ctrl response. This data
> needs to be validated. Since the kernel also knows the limits for valid
> cases, it can fixup the values in case the userspace is setting invalid
> data.
> 
> Signed-off-by: Michael Grzeschik <m.grzeschik@xxxxxxxxxxxxxx>
> 
> ---
> v1: -> v4:
> - new patch
> v4: -> v5:
> - changed uvcg_info to uvcg_dbg for fixups, updated info strings

What commit id does this fix?  Validating userspace data is a good
thing, so shouldn't this also go to stable kernels?

thanks,

greg k-h



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