linux-hardening - Re: [PATCH 00/10][next] scsi: aacraid: Replace one-element arrays with flexible-array members

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Date:   Wed, 28 Jun 2023 14:16:02 -0600
From:   "Gustavo A. R. Silva" <gustavo@...eddedor.com>
To:     Kees Cook <keescook@...omium.org>,
        "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 00/10][next] scsi: aacraid: Replace one-element arrays
 with flexible-array members



On 6/28/23 14:08, Kees Cook wrote:
> On Wed, Jun 28, 2023 at 11:53:45AM -0600, Gustavo A. R. Silva wrote:
>> This series aims to replace one-element arrays with flexible-array
>> members in multiple structures in drivers/scsi/aacraid/aacraid.h.
>>
>> This helps with the ongoing efforts to globally enable -Warray-bounds
>> and get us closer to being able to tighten the FORTIFY_SOURCE routines
>> on memcpy().
>>
>> These issues were found with the help of Coccinelle and audited and fixed,
>> manually.
>>
>> Link: https://github.com/KSPP/linux/issues/79
>>
>> Gustavo A. R. Silva (10):
>>    scsi: aacraid: Replace one-element array with flexible-array member
>>    scsi: aacraid: Use struct_size() helper in aac_get_safw_ciss_luns()
>>    scsi: aacraid: Replace one-element array with flexible-array member in
>>      struct aac_aifcmd
>>    scsi: aacraid: Replace one-element array with flexible-array member in
>>      struct user_sgmapraw
>>    scsi: aacraid: Replace one-element array with flexible-array member in
>>      struct sgmapraw
>>    scsi: aacraid: Use struct_size() helper in code related to struct
>>      sgmapraw
>>    scsi: aacraid: Replace one-element array with flexible-array member in
>>      struct user_sgmap64
>>    scsi: aacraid: Replace one-element array with flexible-array member in
>>      struct sgmap
>>    scsi: aacraid: Replace one-element array with flexible-array member in
>>      struct sgmap64
>>    scsi: aacraid: Replace one-element array with flexible-array member in
>>      struct user_sgmap
> 
> I'd like to reorganize this series so that all the conversions are
> first, and then struct_size() additions are at the end. That way, if
> desired, the conversions can land as fixes to turn the Clang builds
> green again.
> 

OK; I can make that happen. :)

--
Gustavo