linux-kernel - Re: [PATCH v6 4/4] usb: gadget: uvc: Fix use-after-free for inflight usb

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Date:   Sat, 21 Oct 2023 12:05:15 +0200
From:   Greg KH <gregkh@...uxfoundation.org>
To:     Avichal Rakesh <arakesh@...gle.com>
Cc:     etalvala@...gle.com, jchowdhary@...gle.com,
        linux-kernel@...r.kernel.org, linux-usb@...r.kernel.org,
        dan.scally@...asonboard.com, laurent.pinchart@...asonboard.com,
        m.grzeschik@...gutronix.de
Subject: Re: [PATCH v6 4/4] usb: gadget: uvc: Fix use-after-free for inflight
 usb_requests

On Thu, Oct 19, 2023 at 03:30:00PM -0700, Avichal Rakesh wrote:
> 
> 
> On 10/19/23 13:32, kernel test robot wrote:
> > Hi Avichal,
> > 
> > kernel test robot noticed the following build warnings:
> > 
> > [auto build test WARNING on usb/usb-testing]
> > [also build test WARNING on usb/usb-next usb/usb-linus linus/master v6.6-rc6 next-20231019]
> > [If your patch is applied to the wrong git tree, kindly drop us a note.
> > And when submitting patch, we suggest to use '--base' as documented in
> > https://git-scm.com/docs/git-format-patch#_base_tree_information]
> > 
> > url:    https://github.com/intel-lab-lkp/linux/commits/Avichal-Rakesh/usb-gadget-uvc-prevent-use-of-disabled-endpoint/20231020-025512
> > base:   https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-testing
> > patch link:    https://lore.kernel.org/r/20231019185319.2714000-5-arakesh%40google.com
> > patch subject: [PATCH v6 4/4] usb: gadget: uvc: Fix use-after-free for inflight usb_requests
> > config: m68k-allyesconfig (https://download.01.org/0day-ci/archive/20231020/202310200457.GwPPFuHX-lkp@intel.com/config)
> > compiler: m68k-linux-gcc (GCC) 13.2.0
> > reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20231020/202310200457.GwPPFuHX-lkp@intel.com/reproduce)
> > 
> > If you fix the issue in a separate patch/commit (i.e. not just a new version of
> > the same patch/commit), kindly add following tags
> > | Reported-by: kernel test robot <lkp@...el.com>
> > | Closes: https://lore.kernel.org/oe-kbuild-all/202310200457.GwPPFuHX-lkp@intel.com/
> > 
> > All warnings (new ones prefixed by >>):
> > 
> >>> drivers/usb/gadget/function/uvc_video.c:231: warning: This comment starts with '/**', but isn't a kernel-doc comment. Refer Documentation/doc-guide/kernel-doc.rst
> >     * Must be called with req_lock held as it modifies the list ureq is held in
> > 
> > 
> 
> Greg, apologies for the newb question: do you want me to upload
> the fix for this as a reply to [PATCH v6 4/4], or upload a new chain of 
> v7s with this patch fixed? 

A whole new v7 series please.

thanks,

greg k-h