linux-kernel - Re: [RFC PATCH 1/6] bsg: fix kernel panic resulting from missing allocation of a reply-buffer

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: <20170810093217.GL24539@lst.de>
Date:   Thu, 10 Aug 2017 11:32:17 +0200
From:   Christoph Hellwig <hch@....de>
To:     Benjamin Block <bblock@...ux.vnet.ibm.com>
Cc:     "James E . J . Bottomley" <jejb@...ux.vnet.ibm.com>,
        "Martin K . Petersen" <martin.petersen@...cle.com>,
        Jens Axboe <axboe@...nel.dk>, linux-block@...r.kernel.org,
        linux-kernel@...r.kernel.org, linux-scsi@...r.kernel.org,
        Johannes Thumshirn <jthumshirn@...e.de>,
        Christoph Hellwig <hch@....de>,
        Steffen Maier <maier@...ux.vnet.ibm.com>,
        open-iscsi@...glegroups.com
Subject: Re: [RFC PATCH 1/6] bsg: fix kernel panic resulting from missing
        allocation of a reply-buffer

We can't use an on-stack buffer for the sense data, as drivers will
dma to it.  So we should reuse the SCSI init_rq_fn() for the BSG
queues and/or implement the same scheme.