netdev - Re: [PATCH 08/17] ath11k: Use memset_startat() for clearing queue descriptors

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Message-ID: <87v8zriv1c.fsf@codeaurora.org>
Date:   Tue, 14 Dec 2021 08:02:07 +0200
From:   Kalle Valo <kvalo@...nel.org>
To:     Kees Cook <keescook@...omium.org>
Cc:     linux-hardening@...r.kernel.org,
        "David S. Miller" <davem@...emloft.net>,
        Jakub Kicinski <kuba@...nel.org>, ath11k@...ts.infradead.org,
        linux-wireless@...r.kernel.org, netdev@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH 08/17] ath11k: Use memset_startat() for clearing queue descriptors

Kees Cook <keescook@...omium.org> writes:

> In preparation for FORTIFY_SOURCE performing compile-time and run-time
> field bounds checking for memset(), avoid intentionally writing across
> neighboring fields.
>
> Use memset_startat() so memset() doesn't get confused about writing
> beyond the destination member that is intended to be the starting point
> of zeroing through the end of the struct. Additionally split up a later
> field-spanning memset() so that memset() can reason about the size.
>
> Cc: Kalle Valo <kvalo@...eaurora.org>
> Cc: "David S. Miller" <davem@...emloft.net>
> Cc: Jakub Kicinski <kuba@...nel.org>
> Cc: ath11k@...ts.infradead.org
> Cc: linux-wireless@...r.kernel.org
> Cc: netdev@...r.kernel.org
> Signed-off-by: Kees Cook <keescook@...omium.org>

What's the plan for this patch? I would like to take this via my ath
tree to avoid conflicts.

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