linux-kernel - Re: [PATCH] xen/gntdev: Do not use mm notifiers with autotranslating guests

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: <20200128163004.GI21192@mellanox.com>
Date:   Tue, 28 Jan 2020 16:30:08 +0000
From:   Jason Gunthorpe <jgg@...lanox.com>
To:     Boris Ostrovsky <boris.ostrovsky@...cle.com>
CC:     "xen-devel@...ts.xenproject.org" <xen-devel@...ts.xenproject.org>,
        "jgross@...e.com" <jgross@...e.com>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "ilpo.jarvinen@...helsinki.fi" <ilpo.jarvinen@...helsinki.fi>,
        "stable@...r.kernel.org" <stable@...r.kernel.org>
Subject: Re: [PATCH] xen/gntdev: Do not use mm notifiers with autotranslating
 guests

On Tue, Jan 28, 2020 at 11:24:19AM -0500, Boris Ostrovsky wrote:
> Commit d3eeb1d77c5d ("xen/gntdev: use mmu_interval_notifier_insert")
> missed a test for use_ptemod when calling mmu_interval_read_begin(). Fix
> that.
> 
> Fixes: d3eeb1d77c5d ("xen/gntdev: use mmu_interval_notifier_insert")
> CC: stable@...r.kernel.org # 5.5
> Reported-by: Ilpo Järvinen <ilpo.jarvinen@...helsinki.fi>
> Tested-by: Ilpo Järvinen <ilpo.jarvinen@...helsinki.fi>
> Signed-off-by: Boris Ostrovsky <boris.ostrovsky@...cle.com>
> ---
>  drivers/xen/gntdev.c | 24 ++++++++++++------------
>  1 file changed, 12 insertions(+), 12 deletions(-)

Yes, this looks like it for the ptemod miss, thanks

Reviewed-by: Jason Gunthorpe <jgg@...lanox.com>

Jason