Thread (1 message) 1 message, 1 author, 2021-12-14

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

From: Kalle Valo <kvalo@kernel.org>
Date: 2021-12-14 06:02:20
Also in: ath11k, linux-hardening, linux-wireless, lkml

Kees Cook [off-list ref] 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 <redacted>
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 <redacted>
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
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