From: Mimi Zohar <zohar@linux.vnet.ibm.com>
To: Matthew Garrett <mjg@redhat.com>
Cc: Dmitry Kasatkin <dmitry.kasatkin@intel.com>,
Kees Cook <keescook@chromium.org>,
kexec@lists.infradead.org,
linux kernel mailing list <linux-kernel@vger.kernel.org>,
horms@verge.net.au, "Eric W. Biederman" <ebiederm@xmission.com>,
"H. Peter Anvin" <hpa@zytor.com>,
Roberto Sassu <roberto.sassu@polito.it>,
Dave Young <dyoung@redhat.com>, Vivek Goyal <vgoyal@redhat.com>,
Khalid Aziz <khalid@gonehiking.org>
Subject: Re: Kdump with signed images
Date: Fri, 26 Oct 2012 14:25:54 -0400 [thread overview]
Message-ID: <1351275954.18115.209.camel@falcor> (raw)
In-Reply-To: <20121026181904.GA5770@srcf.ucam.org>
On Fri, 2012-10-26 at 19:19 +0100, Matthew Garrett wrote:
> On Fri, Oct 26, 2012 at 01:59:34PM -0400, Mimi Zohar wrote:
> > On Fri, 2012-10-26 at 03:39 +0100, Matthew Garrett wrote:
> > > and it must be impossible for anything other than
> > > /sbin/kexec to make the kexec system call.
> >
> > Permission is a MAC issue. :)
>
> It's a MAC issue that has to be implemented in the kernel. We can't
> depend on userspace loading any kind of policy.
Still a MAC issue, that problably could be addressed by capabilities. I
suggest you post this issue on the LSM mailing list. Please cc: Serge,
as the capabilities maintainer.
thanks,
Mimi
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WARNING: multiple messages have this Message-ID (diff)
From: Mimi Zohar <zohar@linux.vnet.ibm.com>
To: Matthew Garrett <mjg@redhat.com>
Cc: Vivek Goyal <vgoyal@redhat.com>,
"Eric W. Biederman" <ebiederm@xmission.com>,
Khalid Aziz <khalid@gonehiking.org>,
kexec@lists.infradead.org, horms@verge.net.au,
Dave Young <dyoung@redhat.com>, "H. Peter Anvin" <hpa@zytor.com>,
linux kernel mailing list <linux-kernel@vger.kernel.org>,
Dmitry Kasatkin <dmitry.kasatkin@intel.com>,
Roberto Sassu <roberto.sassu@polito.it>,
Kees Cook <keescook@chromium.org>
Subject: Re: Kdump with signed images
Date: Fri, 26 Oct 2012 14:25:54 -0400 [thread overview]
Message-ID: <1351275954.18115.209.camel@falcor> (raw)
In-Reply-To: <20121026181904.GA5770@srcf.ucam.org>
On Fri, 2012-10-26 at 19:19 +0100, Matthew Garrett wrote:
> On Fri, Oct 26, 2012 at 01:59:34PM -0400, Mimi Zohar wrote:
> > On Fri, 2012-10-26 at 03:39 +0100, Matthew Garrett wrote:
> > > and it must be impossible for anything other than
> > > /sbin/kexec to make the kexec system call.
> >
> > Permission is a MAC issue. :)
>
> It's a MAC issue that has to be implemented in the kernel. We can't
> depend on userspace loading any kind of policy.
Still a MAC issue, that problably could be addressed by capabilities. I
suggest you post this issue on the LSM mailing list. Please cc: Serge,
as the capabilities maintainer.
thanks,
Mimi
next prev parent reply other threads:[~2012-10-26 18:28 UTC|newest]
Thread overview: 133+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-10-18 3:10 [PATCH v2] kdump: pass acpi_rsdp= to 2nd kernel for efi booting Dave Young
2012-10-18 14:56 ` Khalid Aziz
2012-10-18 19:11 ` Vivek Goyal
2012-10-18 19:22 ` Khalid Aziz
2012-10-18 19:38 ` [RFC] Kdump with UEFI secure boot (Re: [PATCH v2] kdump: pass acpi_rsdp= to 2nd kernel for efi booting) Vivek Goyal
2012-10-18 19:55 ` Matthew Garrett
2012-10-18 22:25 ` Eric W. Biederman
2012-10-19 2:06 ` Vivek Goyal
2012-10-19 3:36 ` Eric W. Biederman
2012-10-19 14:31 ` Vivek Goyal
2012-10-22 20:43 ` Vivek Goyal
2012-10-22 21:11 ` Eric W. Biederman
2012-10-23 2:04 ` Simon Horman
2012-10-23 13:24 ` Vivek Goyal
2012-10-23 16:26 ` [RFC] Kdump with signed images Eric W. Biederman
2012-10-23 17:39 ` Vivek Goyal
2012-10-23 19:11 ` Maxim Uvarov
2012-10-23 19:16 ` Vivek Goyal
2012-10-22 21:07 ` [RFC] Kdump with UEFI secure boot (Re: [PATCH v2] kdump: pass acpi_rsdp= to 2nd kernel for efi booting) Eric W. Biederman
2012-10-23 13:18 ` Vivek Goyal
2012-10-23 14:59 ` Vivek Goyal
2012-10-23 15:41 ` Matthew Garrett
2012-10-23 16:44 ` [RFC] Kdump with signed images Eric W. Biederman
2012-10-23 16:52 ` Matthew Garrett
2012-10-24 17:19 ` Vivek Goyal
2012-10-24 17:19 ` Vivek Goyal
2012-10-25 5:43 ` Mimi Zohar
2012-10-25 5:43 ` Mimi Zohar
2012-10-25 6:44 ` Kees Cook
2012-10-25 6:44 ` Kees Cook
2012-10-25 7:01 ` Mimi Zohar
2012-10-25 7:01 ` Mimi Zohar
2012-10-25 13:54 ` Vivek Goyal
2012-10-25 13:54 ` Vivek Goyal
2012-10-25 19:06 ` Mimi Zohar
2012-10-25 19:06 ` Mimi Zohar
2012-10-25 15:39 ` [RFC] Kdump with UEFI secure boot (Re: [PATCH v2] kdump: pass acpi_rsdp= to 2nd kernel for efi booting) Vivek Goyal
2012-10-25 15:39 ` Vivek Goyal
2012-10-23 16:19 ` Kdump with signed images Eric W. Biederman
2012-10-23 16:31 ` Matthew Garrett
2012-10-23 17:03 ` Eric W. Biederman
2012-10-23 17:09 ` Matthew Garrett
2012-10-24 17:36 ` Vivek Goyal
2012-10-24 17:36 ` Vivek Goyal
2012-10-25 6:10 ` Mimi Zohar
2012-10-25 6:10 ` Mimi Zohar
2012-10-25 14:10 ` Vivek Goyal
2012-10-25 14:10 ` Vivek Goyal
2012-10-25 18:40 ` Mimi Zohar
2012-10-25 18:40 ` Mimi Zohar
2012-10-25 18:55 ` Vivek Goyal
2012-10-25 18:55 ` Vivek Goyal
2012-10-26 1:15 ` Mimi Zohar
2012-10-26 1:15 ` Mimi Zohar
2012-10-26 2:39 ` Matthew Garrett
2012-10-26 2:39 ` Matthew Garrett
2012-10-26 3:30 ` Eric W. Biederman
2012-10-26 3:30 ` Eric W. Biederman
2012-10-26 17:06 ` Vivek Goyal
2012-10-26 17:06 ` Vivek Goyal
2012-10-26 18:37 ` Mimi Zohar
2012-10-26 18:37 ` Mimi Zohar
2012-11-01 13:10 ` Vivek Goyal
2012-11-01 13:10 ` Vivek Goyal
2012-11-01 13:53 ` Vivek Goyal
2012-11-01 13:53 ` Vivek Goyal
2012-11-01 14:29 ` Mimi Zohar
2012-11-01 14:29 ` Mimi Zohar
2012-11-01 14:43 ` Vivek Goyal
2012-11-01 14:43 ` Vivek Goyal
2012-11-01 14:52 ` Matthew Garrett
2012-11-01 14:52 ` Matthew Garrett
2012-11-02 13:23 ` Vivek Goyal
2012-11-02 13:23 ` Vivek Goyal
2012-11-02 14:29 ` Balbir Singh
2012-11-02 14:29 ` Balbir Singh
2012-11-02 14:36 ` Vivek Goyal
2012-11-02 14:36 ` Vivek Goyal
2012-11-03 3:02 ` Balbir Singh
2012-11-03 3:02 ` Balbir Singh
2012-11-02 21:34 ` H. Peter Anvin
2012-11-02 21:34 ` H. Peter Anvin
2012-11-02 21:32 ` Eric W. Biederman
2012-11-02 21:32 ` Eric W. Biederman
2012-11-05 18:03 ` Vivek Goyal
2012-11-05 18:03 ` Vivek Goyal
2012-11-05 19:44 ` Eric W. Biederman
2012-11-05 19:44 ` Eric W. Biederman
2012-11-05 20:42 ` Vivek Goyal
2012-11-05 20:42 ` Vivek Goyal
2012-11-05 23:01 ` H. Peter Anvin
2012-11-05 23:01 ` H. Peter Anvin
2012-11-06 19:34 ` Vivek Goyal
2012-11-06 19:34 ` Vivek Goyal
2012-11-06 23:51 ` Eric W. Biederman
2012-11-06 23:51 ` Eric W. Biederman
2012-11-08 19:40 ` Vivek Goyal
2012-11-08 19:40 ` Vivek Goyal
2012-11-08 19:45 ` Vivek Goyal
2012-11-08 19:45 ` Vivek Goyal
2012-11-08 21:03 ` Eric W. Biederman
2012-11-08 21:03 ` Eric W. Biederman
2012-11-09 14:39 ` Vivek Goyal
2012-11-09 14:39 ` Vivek Goyal
2012-11-15 5:09 ` Eric W. Biederman
2012-11-15 5:09 ` Eric W. Biederman
2012-11-15 12:56 ` Mimi Zohar
2012-11-15 12:56 ` Mimi Zohar
2012-11-08 20:46 ` Mimi Zohar
2012-11-08 20:46 ` Mimi Zohar
2012-11-01 14:51 ` Vivek Goyal
2012-11-01 14:51 ` Vivek Goyal
2012-11-01 14:57 ` Matthew Garrett
2012-11-01 14:57 ` Matthew Garrett
2012-11-01 15:10 ` Khalid Aziz
2012-11-01 15:10 ` Khalid Aziz
2012-11-01 16:23 ` Matthew Garrett
2012-11-01 16:23 ` Matthew Garrett
2012-11-02 16:57 ` Khalid Aziz
2012-11-02 16:57 ` Khalid Aziz
2012-10-26 17:59 ` Mimi Zohar
2012-10-26 17:59 ` Mimi Zohar
2012-10-26 18:19 ` Matthew Garrett
2012-10-26 18:19 ` Matthew Garrett
2012-10-26 18:25 ` Mimi Zohar [this message]
2012-10-26 18:25 ` Mimi Zohar
2012-10-23 15:51 ` [RFC] Kdump with UEFI secure boot (Re: [PATCH v2] kdump: pass acpi_rsdp= to 2nd kernel for efi booting) Eric W. Biederman
2012-10-23 17:18 ` Vivek Goyal
2012-10-19 17:53 ` Vivek Goyal
2012-10-22 21:15 ` Eric W. Biederman
2012-11-02 21:36 ` H. Peter Anvin
2012-11-05 18:11 ` Vivek Goyal
2012-11-05 19:54 ` Eric W. Biederman
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