linux-hardening - Re: [PATCH v2 3/4][next] scsi: megaraid_sas: Replace one-element array with flexible-array member in MR_DRV_RAID

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Message-ID: <CAL2rwxpJtu8kTh=ia7-8ih5wad4vseU1WOu8vh--A1DY3gfc9Q@mail.gmail.com>
Date:   Tue, 28 Jun 2022 14:41:40 +0530
From:   Sumit Saxena <sumit.saxena@...adcom.com>
To:     "Gustavo A. R. Silva" <gustavoars@...nel.org>
Cc:     Kees Cook <keescook@...omium.org>,
        LKML <linux-kernel@...r.kernel.org>,
        Kashyap Desai <kashyap.desai@...adcom.com>,
        Shivasharan S <shivasharan.srikanteshwara@...adcom.com>,
        "James E.J. Bottomley" <jejb@...ux.ibm.com>,
        "Martin K. Petersen" <martin.petersen@...cle.com>,
        "PDL,MEGARAIDLINUX" <megaraidlinux.pdl@...adcom.com>,
        Linux SCSI List <linux-scsi@...r.kernel.org>,
        linux-hardening@...r.kernel.org
Subject: Re: [PATCH v2 3/4][next] scsi: megaraid_sas: Replace one-element
 array with flexible-array member in MR_DRV_RAID_MAP

>
> BTW, I'd really like to get some input from the maintainers of this
> code. :)
Original patch along with the below change looks good.

@@ -1193,7 +1193,7 @@ struct MR_DRV_RAID_MAP {
 struct MR_DRV_RAID_MAP_ALL {

        struct MR_DRV_RAID_MAP raidMap;
-       struct MR_LD_SPAN_MAP ldSpanMap[MAX_LOGICAL_DRIVES_DYN - 1];
+       struct MR_LD_SPAN_MAP ldSpanMap[MAX_LOGICAL_DRIVES_DYN];
 } __packed;

I will test it and then can provide an Acked-by/Tested-by tag.

Thanks,
Sumit

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