From: Kirill Korotaev <dev@sw.ru>
To: "Eric W. Biederman" <ebiederm@xmission.com>
Cc: Cedric Le Goater <clg@fr.ibm.com>,
linux-kernel@vger.kernel.org, Andrew Morton <akpm@osdl.org>,
Kirill Korotaev <dev@openvz.org>, Andrey Savochkin <saw@sw.ru>,
Herbert Poetzl <herbert@13thfloor.at>,
Sam Vilain <sam.vilain@catalyst.net.nz>,
"Serge E. Hallyn" <serue@us.ibm.com>,
Dave Hansen <haveblue@us.ibm.com>
Subject: Re: [PATCH -mm 0/7] execns syscall and user namespace
Date: Wed, 12 Jul 2006 15:11:09 +0400 [thread overview]
Message-ID: <44B4D8CD.5090701@sw.ru> (raw)
In-Reply-To: <m164i3gad1.fsf@ebiederm.dsl.xmission.com>
> I haven't had a chance to do a thorough review yet but why is
> this needed?
>
> What can be left shared by switching to a new namespace and then
> execing an executable?
>
> Is it not possible to ensure what you are trying to ensure with
> a good user space executable?
I agree with Eric. In OpenVZ we don't do exec(), because executable itself ensures
correct environment.
Do we need to overcomplicate kernel in this regard?
Thanks,
Kirill
next prev parent reply other threads:[~2006-07-12 11:12 UTC|newest]
Thread overview: 104+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-07-11 7:50 [PATCH -mm 0/7] execns syscall and user namespace Cedric Le Goater
2006-07-11 7:50 ` [PATCH -mm 1/7] add execns syscall core routine Cedric Le Goater
2006-07-11 7:50 ` [PATCH -mm 2/7] add execns syscall to s390 Cedric Le Goater
2006-07-11 13:44 ` Martin Schwidefsky
2006-07-11 13:44 ` Martin Schwidefsky
2006-07-11 14:44 ` Cedric Le Goater
2006-07-11 14:54 ` Martin Schwidefsky
2006-07-11 15:43 ` Cedric Le Goater
2006-07-11 7:50 ` [PATCH -mm 3/7] add execns syscall to x86_64 Cedric Le Goater
2006-07-11 7:50 ` [PATCH -mm 4/7] add execns syscall to i386 Cedric Le Goater
2006-07-11 7:50 ` [PATCH -mm 5/7] add user namespace Cedric Le Goater
2006-07-11 16:39 ` Kirill Korotaev
2006-07-11 17:38 ` Cedric Le Goater
2006-07-12 11:21 ` Kirill Korotaev
2006-07-13 16:01 ` Cedric Le Goater
2006-07-12 3:33 ` Eric W. Biederman
2006-07-12 11:13 ` Kirill Korotaev
2006-07-12 18:10 ` Eric W. Biederman
2006-07-13 17:00 ` Cedric Le Goater
2006-07-13 18:07 ` Eric W. Biederman
2006-07-13 18:21 ` Eric W. Biederman
2006-07-13 18:31 ` Dave Hansen
2006-07-13 18:54 ` Eric W. Biederman
2006-07-12 3:46 ` Eric W. Biederman
2006-07-12 12:05 ` Herbert Poetzl
2006-07-12 17:09 ` Eric W. Biederman
2006-07-12 14:00 ` Cedric Le Goater
2006-07-12 17:24 ` Eric W. Biederman
2006-07-13 17:36 ` Cedric Le Goater
2006-07-13 17:47 ` Serge E. Hallyn
2006-07-13 18:14 ` Eric W. Biederman
2006-07-13 18:29 ` Dave Hansen
2006-07-13 19:02 ` Eric W. Biederman
2006-07-13 20:03 ` Dave Hansen
2006-07-14 3:45 ` Eric W. Biederman
2006-07-14 14:28 ` Dave Hansen
2006-07-14 15:13 ` Eric W. Biederman
2006-07-14 16:29 ` Serge E. Hallyn
2006-07-14 16:49 ` Eric W. Biederman
2006-07-14 16:55 ` Dave Hansen
2006-07-14 17:08 ` Serge E. Hallyn
2006-07-14 17:19 ` Dave Hansen
2006-07-14 17:36 ` Eric W. Biederman
2006-07-14 18:15 ` Trond Myklebust
2006-07-14 18:40 ` Eric W. Biederman
2006-07-14 21:04 ` Trond Myklebust
2006-07-15 4:09 ` Eric W. Biederman
2006-07-15 4:35 ` Kyle Moffett
2006-07-15 12:35 ` Eric W. Biederman
2006-07-15 13:25 ` Kyle Moffett
2006-07-15 15:54 ` Dave Hansen
2006-07-15 17:01 ` Trond Myklebust
2006-07-15 23:29 ` Eric W. Biederman
2006-07-16 16:18 ` Dave Hansen
2006-07-14 17:14 ` Eric W. Biederman
2006-07-16 8:36 ` Kirill Korotaev
2006-07-16 10:08 ` Eric W. Biederman
2006-07-14 17:05 ` Serge E. Hallyn
2006-07-14 17:50 ` Kyle Moffett
2006-07-15 11:33 ` Serge E. Hallyn
2006-07-14 17:56 ` Eric W. Biederman
2006-07-14 16:35 ` Dave Hansen
2006-07-13 21:41 ` Serge E. Hallyn
2006-07-14 3:52 ` Eric W. Biederman
2006-07-14 14:02 ` Serge E. Hallyn
2006-07-14 14:50 ` Eric W. Biederman
2006-07-14 16:39 ` Serge E. Hallyn
2006-07-14 17:18 ` Eric W. Biederman
2006-07-14 17:24 ` Dave Hansen
2006-07-14 18:06 ` Eric W. Biederman
2006-07-14 18:42 ` Dave Hansen
2006-07-14 19:07 ` Eric W. Biederman
2006-07-13 17:59 ` Eric W. Biederman
2006-07-13 21:22 ` Serge E. Hallyn
2006-07-14 3:50 ` Eric W. Biederman
2006-07-14 14:17 ` Serge E. Hallyn
2006-07-14 15:05 ` Eric W. Biederman
2006-07-14 16:46 ` Serge E. Hallyn
2006-07-14 16:58 ` Eric W. Biederman
2006-07-14 15:43 ` Kyle Moffett
2006-07-14 16:13 ` Eric W. Biederman
2006-07-11 7:50 ` [PATCH -mm 6/7] add the user namespace to the execns syscall Cedric Le Goater
2006-07-11 7:50 ` [PATCH -mm 7/7] forbid the use of the unshare syscall on ipc namespaces Cedric Le Goater
2006-07-11 14:10 ` Kirill Korotaev
2006-07-11 15:06 ` Cedric Le Goater
2006-07-11 8:02 ` [PATCH -mm 0/7] execns syscall and user namespace Arjan van de Ven
2006-07-11 8:42 ` Cedric Le Goater
2006-07-11 18:12 ` H. Peter Anvin
2006-07-11 18:26 ` Cedric Le Goater
2006-07-11 18:28 ` H. Peter Anvin
2006-07-11 19:50 ` Ulrich Drepper
2006-07-11 21:50 ` Cedric Le Goater
2006-07-11 21:57 ` H. Peter Anvin
2006-07-12 0:16 ` Ulrich Drepper
2006-07-12 0:25 ` H. Peter Anvin
2006-07-12 0:28 ` H. Peter Anvin
2006-07-11 20:22 ` Eric W. Biederman
2006-07-11 21:28 ` Cedric Le Goater
2006-07-12 3:24 ` Eric W. Biederman
2006-07-12 13:05 ` Cedric Le Goater
2006-07-12 16:56 ` Eric W. Biederman
2006-07-13 16:13 ` Cedric Le Goater
2006-07-12 11:11 ` Kirill Korotaev [this message]
2006-07-12 13:10 ` Cedric Le Goater
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