linux-kernel - Re: [PATCH v3 0/3] Remove all strcpy() uses

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Date:   Thu, 5 Aug 2021 13:38:05 +0200
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     Andy Shevchenko <andy.shevchenko@...il.com>
Cc:     Len Baker <len.baker@....com>,
        Andy Shevchenko <andriy.shevchenko@...ux.intel.com>,
        Phil Reid <preid@...ctromag.com.au>,
        Geert Uytterhoeven <geert@...ux-m68k.org>,
        dri-devel <dri-devel@...ts.freedesktop.org>,
        "open list:FRAMEBUFFER LAYER" <linux-fbdev@...r.kernel.org>,
        linux-staging@...ts.linux.dev,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH v3 0/3] Remove all strcpy() uses

On Thu, Aug 05, 2021 at 02:30:35PM +0300, Andy Shevchenko wrote:
> On Thu, Aug 5, 2021 at 2:18 PM Greg Kroah-Hartman
> <gregkh@...uxfoundation.org> wrote:
> > On Sun, Aug 01, 2021 at 02:40:40PM +0300, Andy Shevchenko wrote:
> > > On Sun, Aug 1, 2021 at 11:53 AM Len Baker <len.baker@....com> wrote:
> > > >
> > > > strcpy() performs no bounds checking on the destination buffer. This
> > > > could result in linear overflows beyond the end of the buffer, leading
> > > > to all kinds of misbehaviors. So, this serie removes all strcpy uses
> > > > from the "staging/fbtft" subsystem.
> > > >
> > > > Also, refactor the code a bit to follow the kernel coding-style and
> > > > avoid unnecessary variable initialization.
> > >
> > > I don't see patch 3 (even on lore.kernel.org).
> > >
> > > Greg, Geert, does it make sense to move this driver outside of staging?
> >
> > If you clean up everything that needs to be done, yes, please do.
> 
> Do we have a clear TODO for that?
> 
> The current one has the item which is not feasible to achieve in
> reasonable time. Some of those drivers won't be converted to tiny DRM.
> So the idea is to keep this out of staging in the maintenance phase
> (as it currently states, i.e. no new drivers accepted).  For the rest
> I'm not sure what else can be done (checkpatch? coccinelle?).
> Actually the first sentence in this paragraph is a motivation for
> moving out of staging.

Take it up with the DRM developers/maintainers.  If they approve for
this to move out of staging without being converted over to use tiny
DRM, then I am fine to move it out.

thnks,

greg k-h