linux-kernel - RE: [PATCH v6 2/2] scsi: ufs: Do not rely on prefetched data

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 for Android: free password hash cracker in your pocket

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

Message-ID: <SN6PR04MB46402B83E0E69E2309A9EDA8FCCC0@SN6PR04MB4640.namprd04.prod.outlook.com>
Date:   Fri, 27 Mar 2020 07:49:04 +0000
From:   Avri Altman <Avri.Altman@....com>
To:     "Martin K. Petersen" <martin.petersen@...cle.com>,
        Can Guo <cang@...eaurora.org>
CC:     "asutoshd@...eaurora.org" <asutoshd@...eaurora.org>,
        "nguyenb@...eaurora.org" <nguyenb@...eaurora.org>,
        "hongwus@...eaurora.org" <hongwus@...eaurora.org>,
        "rnayak@...eaurora.org" <rnayak@...eaurora.org>,
        "linux-scsi@...r.kernel.org" <linux-scsi@...r.kernel.org>,
        "kernel-team@...roid.com" <kernel-team@...roid.com>,
        "saravanak@...gle.com" <saravanak@...gle.com>,
        "salyzyn@...gle.com" <salyzyn@...gle.com>,
        Alim Akhtar <alim.akhtar@...sung.com>,
        "James E.J. Bottomley" <jejb@...ux.ibm.com>,
        Matthias Brugger <matthias.bgg@...il.com>,
        Stanley Chu <stanley.chu@...iatek.com>,
        Bean Huo <beanhuo@...ron.com>,
        Bart Van Assche <bvanassche@....org>,
        Venkat Gopalakrishnan <venkatg@...eaurora.org>,
        Tomas Winkler <tomas.winkler@...el.com>,
        Bjorn Andersson <bjorn.andersson@...aro.org>,
        open list <linux-kernel@...r.kernel.org>,
        "moderated list:ARM/Mediatek SoC support" 
        <linux-arm-kernel@...ts.infradead.org>,
        "moderated list:ARM/Mediatek SoC support" 
        <linux-mediatek@...ts.infradead.org>
Subject: RE: [PATCH v6 2/2] scsi: ufs: Do not rely on prefetched data



> 
> Can,
> 
> > We were setting bActiveICCLevel attribute for UFS device only once but
> > type of this attribute has changed from persistent to volatile since
> > UFS device specification v2.1. This attribute is set to the default
> > value after power cycle or hardware reset event. It isn't safe to rely
> > on prefetched data (only used for bActiveICCLevel attribute
> > now). Hence this change removes the code related to data prefetching
> > and set this parameter on every attempt to probe the UFS device.
> 
> Applied patch #2 to 5.7/scsi-queue. Awaiting Avri's feedback on patch
> #1. Thanks!
It looks fine.
Thanks,
Avri

> 
> --
> Martin K. Petersen      Oracle Linux Engineering