linux-kernel - Re: [PATCH] scsi: libsas: fix ata xfer length

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <yq160j5ji6n.fsf@oracle.com>
Date:   Sun, 19 Mar 2017 13:21:52 -0400
From:   "Martin K. Petersen" <martin.petersen@...cle.com>
To:     John Garry <john.garry@...wei.com>
Cc:     <jejb@...ux.vnet.ibm.com>, <martin.petersen@...cle.com>,
        <linux-scsi@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
        <linuxarm@...wei.com>
Subject: Re: [PATCH] scsi: libsas: fix ata xfer length

John Garry <john.garry@...wei.com> writes:

John,

> The total ata xfer length may not be calculated properly,
> in that we do not use the proper method to get an sg element
> dma length.
>
> According to the code comment, sg_dma_len() should be used
> after dma_map_sg() is called.
>
> This issue was found by turning on the SMMUv3 in front of
> the hisi_sas controller in hip07. Multiple sg elements
> were being combined into a single element, but the original
> first element length was being use as the total xfer length.

Applied to 4.11/scsi-fixes.

-- 
Martin K. Petersen	Oracle Linux Engineering