From: Eric Blake <eblake@redhat.com>
To: Colin Walters <walters@verbum.org>, Greg Kurz <groug@kaod.org>,
viro@zeniv.linux.org.uk
Cc: linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: Re: [PATCH 1/2] vfs: implement fchmodat2() syscall
Date: Tue, 11 Apr 2017 12:55:51 -0500 [thread overview]
Message-ID: <02954403-b546-0afe-39c7-23b7b05dece2@redhat.com> (raw)
In-Reply-To: <1491933162.45759.941552624.3722F8E8@webmail.messagingengine.com>
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On 04/11/2017 12:52 PM, Colin Walters wrote:
>
>
> On Tue, Feb 28, 2017, at 02:23 PM, Eric Blake wrote:
>
>> Might also be worth mentioning that this patch is required in order to
>> solve CVE-2016-9602, per discussion at
>> https://lists.gnu.org/archive/html/qemu-devel/2017-02/msg06089.html
>
> I only briefly looked at this, but can't `open(..., O_PATH)` be used to solve
> this today?
O_PATH was the fallback that qemu used - but that's non-POSIX, which
means we have to have a different solution for POSIX systems than for
Linux systems, while waiting for Linux to catch up to POSIX.
--
Eric Blake, Principal Software Engineer
Red Hat, Inc. +1-919-301-3266
Virtualization: qemu.org | libvirt.org
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next prev parent reply other threads:[~2017-04-11 17:55 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-02-28 17:03 Greg Kurz
2017-02-28 17:03 ` [PATCH 2/2] x86: wire up " Greg Kurz
2017-03-01 9:00 ` kbuild test robot
2017-02-28 18:23 ` [PATCH 1/2] vfs: implement " Eric Blake
2017-02-28 18:41 ` Greg Kurz
2017-02-28 18:59 ` Eric Blake
2017-04-11 17:52 ` Colin Walters
2017-04-11 17:55 ` Eric Blake [this message]
2017-04-11 18:07 ` Eric Blake
2017-04-11 18:08 ` Eric Blake
2017-04-11 19:09 ` Colin Walters
2017-04-19 12:45 ` Greg Kurz
2017-03-01 9:01 ` Michael Kerrisk
2017-04-11 11:39 ` Greg Kurz
2017-04-11 12:04 ` Greg Kurz
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