linux-hardening - Re: [PATCH v2][next] wireless: wext-spy: Fix out-of-bounds warning

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Message-ID: <202104221346.4FE32C5@keescook>
Date:   Thu, 22 Apr 2021 13:48:46 -0700
From:   Kees Cook <keescook@...omium.org>
To:     Johannes Berg <johannes@...solutions.net>
Cc:     "Gustavo A. R. Silva" <gustavoars@...nel.org>,
        "David S. Miller" <davem@...emloft.net>,
        Jakub Kicinski <kuba@...nel.org>,
        linux-wireless@...r.kernel.org, netdev@...r.kernel.org,
        linux-kernel@...r.kernel.org, linux-hardening@...r.kernel.org
Subject: Re: [PATCH v2][next] wireless: wext-spy: Fix out-of-bounds warning

On Thu, Apr 22, 2021 at 10:04:29PM +0200, Johannes Berg wrote:
> On Thu, 2021-04-22 at 15:00 -0500, Gustavo A. R. Silva wrote:
> > 
> > Changes in v2:
> >  - Use direct struct assignments instead of memcpy().
> >  - Fix one more instance of this same issue in function
> >    iw_handler_get_thrspy().
> >  - Update changelog text.
> 
> Thanks.
> 
> >  - Add Kees' RB tag. 
> 
> He probably won't mind in this case, but you did some pretty substantial
> changes to the patch, so I really wouldn't recommend keeping it there.

Thanks for double-checking! Yeah, I'm fine with it; Gustavo and I had
talked in the past about similar solutions in other places, so he
forwarded the intent from those conversations. (Not that you had any
visibility into that!) But, yes, still:

Reviewed-by: Kees Cook <keescook@...omium.org>

Thanks!

-- 
Kees Cook