netdev - Re: [PATCH] rsi: Remove stack VLA usage

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <87r2ota625.fsf@codeaurora.org>
Date:   Fri, 09 Mar 2018 12:37:06 +0200
From:   Kalle Valo <kvalo@...eaurora.org>
To:     "Tobin C. Harding" <me@...in.cc>
Cc:     kernel-hardening@...ts.openwall.com, linux-kernel@...r.kernel.org,
        netdev@...r.kernel.org, Tycho Andersen <tycho@...ho.ws>,
        Kees Cook <keescook@...omium.org>,
        "Gustavo A. R. Silva" <gustavo@...eddedor.com>
Subject: Re: [PATCH] rsi: Remove stack VLA usage

"Tobin C. Harding" <me@...in.cc> writes:

> The kernel would like to have all stack VLA usage removed[1].  rsi uses
> a VLA based on 'blksize'.  Elsewhere in the SDIO code maximum block size
> is defined using a magic number.  We can use a pre-processor defined
> constant and declare the array to maximum size.  We add a check before
> accessing the array in case of programmer error.
>
> [1]: https://lkml.org/lkml/2018/3/7/621
>
> Signed-off-by: Tobin C. Harding <me@...in.cc>

Please CC linux-wireless list, otherwise patchwork won't see the patch
and I can't apply it.

-- 
Kalle Valo