From: Kalle Valo <kvalo@kernel.org>
To: Kees Cook <keescook@chromium.org>
Cc: linux-hardening@vger.kernel.org,
"David S. Miller" <davem@davemloft.net>,
Jakub Kicinski <kuba@kernel.org>,
ath11k@lists.infradead.org, linux-wireless@vger.kernel.org,
netdev@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: Re: [PATCH 08/17] ath11k: Use memset_startat() for clearing queue descriptors
Date: Tue, 14 Dec 2021 08:02:07 +0200 [thread overview]
Message-ID: <87v8zriv1c.fsf@codeaurora.org> (raw)
In-Reply-To: <20211213223331.135412-9-keescook@chromium.org> (Kees Cook's message of "Mon, 13 Dec 2021 14:33:22 -0800")
Kees Cook <keescook@chromium.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@codeaurora.org>
> Cc: "David S. Miller" <davem@davemloft.net>
> Cc: Jakub Kicinski <kuba@kernel.org>
> Cc: ath11k@lists.infradead.org
> Cc: linux-wireless@vger.kernel.org
> Cc: netdev@vger.kernel.org
> Signed-off-by: Kees Cook <keescook@chromium.org>
What's the plan for this patch? I would like to take this via my ath
tree to avoid conflicts.
--
https://patchwork.kernel.org/project/linux-wireless/list/
https://wireless.wiki.kernel.org/en/developers/documentation/submittingpatches
next prev parent reply other threads:[~2021-12-14 6:02 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <20211213223331.135412-1-keescook@chromium.org>
2021-12-13 22:33 ` [PATCH 02/17] net/mlx5e: Avoid field-overflowing memcpy() Kees Cook
2021-12-13 22:33 ` [PATCH 03/17] net/mlx5e: Use struct_group() for memcpy() region Kees Cook
2021-12-13 22:33 ` [PATCH 08/17] ath11k: Use memset_startat() for clearing queue descriptors Kees Cook
2021-12-14 6:02 ` Kalle Valo [this message]
2021-12-14 15:46 ` Kalle Valo
2021-12-14 17:05 ` Kees Cook
2021-12-16 13:50 ` Kalle Valo
2021-12-13 22:33 ` [PATCH 12/17] iw_cxgb4: Use memset_startat() for cpl_t5_pass_accept_rpl Kees Cook
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