From: Vivek Goyal <vgoyal@redhat.com>
To: richard -rw- weinberger <richard.weinberger@gmail.com>
Cc: linux-kernel@vger.kernel.org, ebiederm@xmission.com,
zohar@linux.vnet.ibm.com, pjones@redhat.com, hpa@zytor.com,
dhowells@redhat.com, jwboyer@redhat.com
Subject: Re: [PATCH 0/3] ELF executable signing and verification
Date: Tue, 15 Jan 2013 18:15:30 -0500 [thread overview]
Message-ID: <20130115231530.GB18802@redhat.com> (raw)
In-Reply-To: <CAFLxGvxWs79ZCigDtBfkdu0mMk8Cfm6xNzzPZkoPKT9pTc9zrA@mail.gmail.com>
On Tue, Jan 15, 2013 at 11:27:12PM +0100, richard -rw- weinberger wrote:
> On Tue, Jan 15, 2013 at 10:34 PM, Vivek Goyal <vgoyal@redhat.com> wrote:
> > Upon exec(), we determine if executable is signed. If it is, then locks
> > down the pages in memory (using MAP_LOCKED) and verfies the signature.
> > If signature does not match, process is killed. Unsigned processes
> > don't get affected at all.
>
> Also ptrace() should be disallowed on such a process created from a signed ELF.
Yes, that I have listed in TODO. We need to disable ptrace for signed
processes or make sure only signed process can trace it.
Thanks
Vivek
next prev parent reply other threads:[~2013-01-15 23:15 UTC|newest]
Thread overview: 62+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-01-15 21:34 [PATCH 0/3] ELF executable signing and verification Vivek Goyal
2013-01-15 21:34 ` [PATCH 1/3] module: export couple of functions for use in process signature verification Vivek Goyal
2013-01-15 21:34 ` [PATCH 2/3] binfmt_elf: Verify signature of signed elf binary Vivek Goyal
2013-01-16 4:30 ` Eric W. Biederman
2013-01-16 4:55 ` Mimi Zohar
2013-01-16 7:10 ` Eric W. Biederman
2013-01-16 14:00 ` Mimi Zohar
2013-01-16 14:48 ` Vivek Goyal
2013-01-16 15:33 ` Mimi Zohar
2013-01-16 15:54 ` Vivek Goyal
2013-01-16 17:24 ` Mimi Zohar
2013-01-16 18:21 ` Vivek Goyal
2013-01-16 18:45 ` Mimi Zohar
2013-01-16 18:57 ` Vivek Goyal
2013-01-16 19:37 ` Mimi Zohar
2013-01-16 19:47 ` Vivek Goyal
2013-01-16 20:25 ` Mimi Zohar
2013-01-16 21:55 ` Vivek Goyal
2013-01-17 8:37 ` Elena Reshetova
2013-01-17 14:39 ` Kasatkin, Dmitry
2013-01-17 14:35 ` Kasatkin, Dmitry
2013-01-16 16:34 ` Vivek Goyal
2013-01-16 18:08 ` Mimi Zohar
2013-01-16 18:28 ` Vivek Goyal
2013-01-16 19:24 ` Mimi Zohar
2013-01-16 21:53 ` Vivek Goyal
2013-01-17 14:58 ` Kasatkin, Dmitry
2013-01-17 15:06 ` Kasatkin, Dmitry
2013-01-17 15:21 ` Vivek Goyal
2013-01-17 15:18 ` Vivek Goyal
2013-01-17 16:27 ` Kasatkin, Dmitry
2013-01-17 20:33 ` Frank Ch. Eigler
2013-01-17 20:55 ` Vivek Goyal
2013-01-17 21:46 ` Kasatkin, Dmitry
2013-01-17 21:52 ` Vivek Goyal
2013-01-20 16:36 ` Mimi Zohar
2013-01-21 16:42 ` Vivek Goyal
2013-01-21 18:30 ` Mimi Zohar
2013-01-16 22:35 ` Mimi Zohar
2013-01-16 22:51 ` Vivek Goyal
2013-01-16 23:16 ` Eric W. Biederman
2013-01-17 15:37 ` Mimi Zohar
2013-01-17 15:51 ` Vivek Goyal
2013-01-17 16:32 ` Mimi Zohar
2013-01-17 17:01 ` Kasatkin, Dmitry
2013-01-17 17:03 ` Kasatkin, Dmitry
2013-01-17 17:42 ` Vivek Goyal
2013-01-17 17:36 ` Vivek Goyal
2013-01-20 17:20 ` Mimi Zohar
2013-01-21 15:45 ` Vivek Goyal
2013-01-21 18:44 ` Mimi Zohar
2013-01-20 16:17 ` H. Peter Anvin
2013-01-20 16:55 ` Mimi Zohar
2013-01-20 17:00 ` H. Peter Anvin
2013-01-15 21:34 ` [PATCH 3/3] binfmt_elf: Do not allow exec() if signed binary has intepreter Vivek Goyal
2013-01-15 21:37 ` [PATCH 4/3] User space utility "signelf" to sign elf executable Vivek Goyal
2013-01-15 22:27 ` [PATCH 0/3] ELF executable signing and verification richard -rw- weinberger
2013-01-15 23:15 ` Vivek Goyal [this message]
2013-01-15 23:17 ` richard -rw- weinberger
2013-01-17 16:22 ` Kasatkin, Dmitry
2013-01-17 17:25 ` Vivek Goyal
2013-01-22 4:22 ` Rusty Russell
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20130115231530.GB18802@redhat.com \
--to=vgoyal@redhat.com \
--cc=dhowells@redhat.com \
--cc=ebiederm@xmission.com \
--cc=hpa@zytor.com \
--cc=jwboyer@redhat.com \
--cc=linux-kernel@vger.kernel.org \
--cc=pjones@redhat.com \
--cc=richard.weinberger@gmail.com \
--cc=zohar@linux.vnet.ibm.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).