linux-hardening - Re: [PATCH 0/3] net: Cleanups for FORTIFY

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Date:   Sat, 21 Aug 2021 22:16:18 -0700
From:   Kees Cook <keescook@...omium.org>
To:     Kalle Valo <kvalo@...eaurora.org>
Cc:     Jakub Kicinski <kuba@...nel.org>,
        Saeed Mahameed <saeedm@...dia.com>, netdev@...r.kernel.org,
        Stanislav Yakovlev <stas.yakovlev@...il.com>,
        "David S. Miller" <davem@...emloft.net>,
        Leon Romanovsky <leon@...nel.org>,
        Alexei Starovoitov <ast@...nel.org>,
        Daniel Borkmann <daniel@...earbox.net>,
        Jesper Dangaard Brouer <hawk@...nel.org>,
        John Fastabend <john.fastabend@...il.com>,
        Andrii Nakryiko <andrii@...nel.org>,
        Martin KaFai Lau <kafai@...com>,
        Song Liu <songliubraving@...com>, Yonghong Song <yhs@...com>,
        KP Singh <kpsingh@...nel.org>, linux-kernel@...r.kernel.org,
        linux-wireless@...r.kernel.org, linux-rdma@...r.kernel.org,
        bpf@...r.kernel.org, linux-hardening@...r.kernel.org
Subject: Re: [PATCH 0/3] net: Cleanups for FORTIFY_SOURCE

On Sat, Aug 21, 2021 at 01:13:37PM +0300, Kalle Valo wrote:
> Kalle Valo <kvalo@...eaurora.org> writes:
> 
> > Jakub Kicinski <kuba@...nel.org> writes:
> >
> >> On Thu, 19 Aug 2021 13:28:22 -0700 Kees Cook wrote:
> >>> Hi,
> >>> 
> >>> In preparation for FORTIFY_SOURCE performing compile-time and run-time
> >>> field bounds checking for memcpy(), memmove(), and memset(), avoid
> >>> intentionally writing across neighboring fields.
> >>> 
> >>> These three changes have been living in my memcpy() series[1], but have
> >>> no external dependencies. It's probably better to have these go via
> >>> netdev.
> >>
> >> Thanks.
> >>
> >> Kalle, Saeed - would you like to take the relevant changes? Presumably
> >> they would get into net-next anyway by the time the merge window opens.
> >
> > Ok, I'll take patch 1 to wireless-drivers-next.
> 
> Correction: I'll take patches 1 and 3 to wireless-drivers-next.

Great; thanks!

-- 
Kees Cook