linux-kernel - Re: [PATCH v3 5/6] of: dynamic: Move dead property list check into property add/update functions

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <CAL_JsqLU4Oy3aiw6mnPUnxSPiXyydpR+zyESDvqS26cSVo=ngA@mail.gmail.com>
Date:   Mon, 21 Aug 2023 09:23:10 -0500
From:   Rob Herring <robh@...nel.org>
To:     Geert Uytterhoeven <geert@...ux-m68k.org>
Cc:     Frank Rowand <frowand.list@...il.com>,
        "Enrico Weigelt, metux IT consult" <info@...ux.net>,
        "Rafael J. Wysocki" <rafael.j.wysocki@...el.com>,
        Sakari Ailus <sakari.ailus@...ux.intel.com>,
        Petr Mladek <pmladek@...e.com>,
        Andy Shevchenko <andriy.shevchenko@...ux.intel.com>,
        Geert Uytterhoeven <geert+renesas@...der.be>,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v3 5/6] of: dynamic: Move dead property list check into
 property add/update functions

On Mon, Aug 21, 2023 at 8:05 AM Geert Uytterhoeven <geert@...ux-m68k.org> wrote:
>
> Hi Rob,
>
> Thanks for your patch!
>
>
> On Fri, Aug 18, 2023 at 10:41 PM Rob Herring <robh@...nel.org> wrote:
> > The changeset code checks for a property in the deadprops list when
> > adding/updating a property, but of_add_property() and
> > of_update_property() do not. As the users of these functions are pretty
> > simple, they have not hit this scenario or else the property lists
> > would get corrupted.
> >
> > With this there are 3 cases of removing a property from either deadprops
> > or properties lists, so add a helper to find and remove a matching
> > property.
> >
> > Signed-off-by: Rob Herring <robh@...nel.org>
>
> Reviewed-by: Geert Uytterhoeven <geert+renesas@...der.be>

Thanks!

>
> Perhaps this needs a Fixes tag?

I didn't simply because in the decades that these functions existed,
no one cared. It would require a specific sequence of calls which we
could pretty much determine doesn't happen just looking at the callers
in the kernel.

Rob