linux-kernel - RE: [PATCH v2 6/9] scsi: ufshpb: Add hpb dev reset response

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] [day] [month] [year] [list]

Message-ID: <DM6PR04MB6575477CCE75422702460035FC8F9@DM6PR04MB6575.namprd04.prod.outlook.com>
Date:   Mon, 8 Feb 2021 07:50:50 +0000
From:   Avri Altman <Avri.Altman@....com>
To:     Can Guo <cang@...eaurora.org>
CC:     "James E . J . Bottomley" <jejb@...ux.vnet.ibm.com>,
        "Martin K . Petersen" <martin.petersen@...cle.com>,
        "linux-scsi@...r.kernel.org" <linux-scsi@...r.kernel.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "gregkh@...uxfoundation.org" <gregkh@...uxfoundation.org>,
        Bart Van Assche <bvanassche@....org>,
        yongmyung lee <ymhungry.lee@...sung.com>,
        Daejun Park <daejun7.park@...sung.com>,
        "alim.akhtar@...sung.com" <alim.akhtar@...sung.com>,
        "asutoshd@...eaurora.org" <asutoshd@...eaurora.org>,
        Zang Leigang <zangleigang@...ilicon.com>,
        Avi Shchislowski <Avi.Shchislowski@....com>,
        Bean Huo <beanhuo@...ron.com>,
        "stanley.chu@...iatek.com" <stanley.chu@...iatek.com>
Subject: RE: [PATCH v2 6/9] scsi: ufshpb: Add hpb dev reset response

> > +             if (hpb->is_hcm) {
> > +                     struct ufshpb_lu *h;
> > +                     struct scsi_device *sdev;
> > +
> > +                     shost_for_each_device(sdev, hba->host) {
> 
> I haven't test it yet, but this line shall cause recursive spin lock -
> in current code base, ufshpb_rsp_upiu() is called with host_lock held.
Yayks Ouch.  Will fix.

Thanks,
Avri