On Wed, Nov 09, 2022 at 11:23:10AM +0100, Greg KH wrote:
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 stringsWhat commit id does this fix? Validating userspace data is a good thing, so shouldn't this also go to stable kernels?
This patch makes use of the uvc_get_frame_size function, which was
introduced with in v6.0.
"e219a712bc06 ("usb: gadget: uvc: add v4l2 try_format api call")
So this should not go in as a stable patch.
Thanks,
Michael
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