linux-kernel - Re: [PATCH][next] scsi: qla2xxx: Fix memcpy field-spanning write issue

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Message-ID: <c7ffab41-97ed-49d8-966c-ac83d52266bf@embeddedor.com>
Date: Tue, 12 Aug 2025 22:52:48 +0900
From: "Gustavo A. R. Silva" <gustavo@...eddedor.com>
To: "Martin K. Petersen" <martin.petersen@...cle.com>,
 "Gustavo A. R. Silva" <gustavoars@...nel.org>
Cc: Chris Leech <cleech@...hat.com>, Bryan Gurney <bgurney@...hat.com>,
 Nilesh Javali <njavali@...vell.com>,
 "James E.J. Bottomley" <James.Bottomley@...senpartnership.com>,
 GR-QLogic-Storage-Upstream@...vell.com, linux-scsi@...r.kernel.org,
 linux-kernel@...r.kernel.org, linux-hardening@...r.kernel.org
Subject: Re: [PATCH][next] scsi: qla2xxx: Fix memcpy field-spanning write
 issue

Hi Martin,

On 31/07/25 12:17, Martin K. Petersen wrote:
> 
> Gustavo,
> 
>> +
>> +	/* Must be last --ends in a flexible-array member. */
>> +	TRAILING_OVERLAP(struct purex_item, default_item, iocb,
>> +		uint8_t __default_item_iocb[QLA_DEFAULT_PAYLOAD_SIZE];
>> +	);
>>   } scsi_qla_host_t;
> 
> Looks OK to me but will have to wait for TRAILING_OVERLAP() to land.
> 

The helper is already out in -rc1. :)

Thanks!
-Gustavo