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Date: Wed, 25 Apr 2018 16:58:52 +0200
From: Stefano Brivio <sbrivio@...hat.com>
To: Kees Cook <keescook@...omium.org>
Cc: Andreas Christoforou <andreaschristofo@...il.com>,
kernel-hardening@...ts.openwall.com, Steffen Klassert
<steffen.klassert@...unet.com>, Herbert Xu <herbert@...dor.apana.org.au>,
"David S. Miller" <davem@...emloft.net>, Alexey Kuznetsov
<kuznet@....inr.ac.ru>, Hideaki YOSHIFUJI <yoshfuji@...ux-ipv6.org>,
netdev@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v4 ipsec-next] xfrm: remove VLA usage in __xfrm6_sort()
On Wed, 25 Apr 2018 07:46:39 -0700
Kees Cook <keescook@...omium.org> wrote:
> In the quest to remove all stack VLA usage removed from the kernel[1],
> just use XFRM_MAX_DEPTH as already done for the "class" array. In one
> case, it'll do this loop up to 5, the other caller up to 6.
>
> [1] https://lkml.org/lkml/2018/3/7/621
>
> Co-developed-by: Andreas Christoforou <andreaschristofo@...il.com>
> Signed-off-by: Kees Cook <keescook@...omium.org>
> ---
> v4:
> - actually remove memset(). :)
> v3:
> - adjust Subject and commit log (Steffen)
> - use "= { }" instead of memset() (Stefano)
> v2:
> - use XFRM_MAX_DEPTH for "count" array (Steffen and Mathias).
> ---
Acked-by: Stefano Brivio <sbrivio@...hat.com>
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