linux-hardening - Re: [PATCH 1/2][next] scsi: lpfc: Replace one-element array with flexible-array member

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Date:   Tue, 23 May 2023 10:31:44 -0700
From:   Kees Cook <keescook@...omium.org>
To:     "Martin K. Petersen" <martin.petersen@...cle.com>
Cc:     "Gustavo A. R. Silva" <gustavoars@...nel.org>,
        "James E.J. Bottomley" <jejb@...ux.ibm.com>,
        Dick Kennedy <dick.kennedy@...adcom.com>,
        James Smart <james.smart@...adcom.com>,
        linux-scsi@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-hardening@...r.kernel.org
Subject: Re: [PATCH 1/2][next] scsi: lpfc: Replace one-element array with
 flexible-array member

On Mon, May 22, 2023 at 06:02:21PM -0400, Martin K. Petersen wrote:
> 
> Gustavo,
> 
> > One-element arrays are deprecated, and we are replacing them with flexible
> > array members instead. So, replace one-element arrays with flexible-array
> > members in a couple of structures, and refactor the rest of the code,
> > accordingly.
> >
> > This helps with the ongoing efforts to tighten the FORTIFY_SOURCE
> > routines on memcpy() and help us make progress towards globally
> > enabling -fstrict-flex-arrays=3 [1].
> >
> > This results in no differences in binary output.
> 
> Applied to 6.5/scsi-staging, thanks!

Martin, I think this patch is not right -- can you drop this from
staging for the moment?

-- 
Kees Cook