linux-kernel - Re: [PATCH] scsi: megaraid_sas: Add flexible array member for SGLs

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Message-ID: <yq17cxjqvfy.fsf@ca-mkp.ca.oracle.com>
Date:   Wed, 18 Jan 2023 18:23:06 -0500
From:   "Martin K. Petersen" <martin.petersen@...cle.com>
To:     Kees Cook <keescook@...omium.org>
Cc:     Kashyap Desai <kashyap.desai@...adcom.com>,
        Holger Kiehl <Holger.Kiehl@....de>,
        Sumit Saxena <sumit.saxena@...adcom.com>,
        Shivasharan S <shivasharan.srikanteshwara@...adcom.com>,
        "James E.J. Bottomley" <jejb@...ux.ibm.com>,
        "Martin K. Petersen" <martin.petersen@...cle.com>,
        megaraidlinux.pdl@...adcom.com, linux-scsi@...r.kernel.org,
        linux-kernel@...r.kernel.org, linux-hardening@...r.kernel.org
Subject: Re: [PATCH] scsi: megaraid_sas: Add flexible array member for SGLs


Kees,

> struct MPI2_RAID_SCSI_IO_REQUEST ends with a single SGL, but expects
> to copy multiple. Add a flexible array member so the compiler can
> reason about the size of the memcpy(). This will avoid the run-time
> false positive warning:

Applied to 6.3/scsi-staging, thanks!

-- 
Martin K. Petersen	Oracle Linux Engineering