linux-kernel - Re: [PATCH 04/10][next] scsi: aacraid: Replace one-element array with flexible-array member in struct user

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Message-ID: <202306281310.7E77AE98@keescook>
Date:   Wed, 28 Jun 2023 13:10:39 -0700
From:   Kees Cook <keescook@...omium.org>
To:     "Gustavo A. R. Silva" <gustavoars@...nel.org>
Cc:     aacraid@...rosemi.com, "James E.J. Bottomley" <jejb@...ux.ibm.com>,
        "Martin K. Petersen" <martin.petersen@...cle.com>,
        linux-scsi@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-hardening@...r.kernel.org
Subject: Re: [PATCH 04/10][next] scsi: aacraid: Replace one-element array
 with flexible-array member in struct user_sgmapraw

On Wed, Jun 28, 2023 at 11:55:47AM -0600, Gustavo A. R. Silva wrote:
> Replace one-element array with flexible-array member in struct
> user_sgmapraw.
> 
> This results in no differences in binary output.

Confirmed.

> 
> Issue found with the help of Coccinelle and audited and fixed,
> manually.
> 
> Link: https://github.com/KSPP/linux/issues/79
> Link: https://github.com/ClangBuiltLinux/linux/issues/1851
> Signed-off-by: Gustavo A. R. Silva <gustavoars@...nel.org>

Reviewed-by: Kees Cook <keescook@...omium.org>

-- 
Kees Cook