From: Joe Malicki <jmalicki@metacarta.com>
To: linux-kernel <linux-kernel@vger.kernel.org>
Cc: Kenneth Baker <bakerkj@metacarta.com>, Michael Itz <mitz@metacarta.com>
Subject: Re: BUG: setuid sometimes doesn't.
Date: Thu, 26 Feb 2009 07:06:21 -0500 (EST) [thread overview]
Message-ID: <18521844.9754741235649981642.JavaMail.root@ouachita> (raw)
In-Reply-To: <9683328.9717571235603514325.JavaMail.root@ouachita>
----- "Joe Malicki" <jmalicki@metacarta.com> wrote:
> Very rarely, we experience a setuid program not properly getting
> the euid of its owner.
>
> Thus far, we have only seen failures for the program being setuid
> root, being run by a non-root user, on a multi-core machine. Trying
> to
> setuid to a user from root, *or* booting with maxcpus=1 and trying to
> setuid from a non-root user to root, both fail.
Sorry, misstated that.
setuid from nonroot->root, or with maxcpus=1, always seems to work.
Only multiple cores with setuid to root has failed for us.
-Joe Malicki
next prev parent reply other threads:[~2009-02-26 12:06 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <10783026.9717361235603356623.JavaMail.root@ouachita>
2009-02-25 23:11 ` BUG: setuid sometimes doesn't Joe Malicki
2009-02-26 0:28 ` Andrew Morton
2009-02-26 13:17 ` Joe Malicki
2009-02-26 12:06 ` Joe Malicki [this message]
2009-02-26 16:06 ` Hugh Dickins
[not found] <15171620.10049841236049960269.JavaMail.root@ouachita>
2009-03-03 3:16 ` Joe Malicki
2009-03-03 11:16 ` Hugh Dickins
2009-03-04 1:28 ` Joe Malicki
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