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    SubjectRe: v2.6.28-rc1: readlink /proc/*/exe returns uninitialized data to userspace
    On Wed, Dec 03, 2008 at 12:20:48PM -0800, Andrew Morton wrote:
    > On Wed, 3 Dec 2008 09:18:54 -0800
    > Greg KH <greg@kroah.com> wrote:
    >
    > > On Tue, Nov 11, 2008 at 02:14:12PM -0800, Andrew Morton wrote:
    > > > On Sat, 8 Nov 2008 02:12:05 +0300
    > > > Alexey Dobriyan <adobriyan@gmail.com> wrote:
    > > >
    > > > > On Fri, Nov 07, 2008 at 11:05:44AM -0800, Greg KH wrote:
    > > > > > On Thu, Nov 06, 2008 at 11:04:10AM +0100, Ingo Molnar wrote:
    > > > > > >
    > > > > > > * Al Viro <viro@ZenIV.linux.org.uk> wrote:
    > > > > > >
    > > > > > > > On Tue, Nov 04, 2008 at 10:39:19AM +0100, Vegard Nossum wrote:
    > > > > > > > > On Sun, Oct 26, 2008 at 10:08 PM, Vegard Nossum <vegard.nossum@gmail.com> wrote:
    > > > > > > > > # uname -a
    > > > > > > > > Linux localhost.localdomain 2.6.25.11-97.fc9.i686 #1 SMP Mon Jul 21
    > > > > > > > > 01:31:09 EDT 2008 i686 i686 i386 GNU/Linux
    > > > > > > > > # prelink -mRf /sbin/udevd
    > > > > > > > > # ./a.out /proc/564/exe
    > > > > > > > > warning: /proc/564/exe: got return value 38, expected 11
    > > > > > > > > 2f7362696e2f7564657664005f47387942426e5952446e566f306868202864656c6574656429
    > > > > > > > > /sbin/udevd _G8yBBnYRDnVo0hh (deleted)
    > > > > > > > >
    > > > > > > > > Yoshiya Koyama reports that the problem exists on RHEL 2.6.9-42.ELsmp too.
    > > > > > > > >
    > > > > > > > > I don't think it's exactly the same problem as originally reported,
    > > > > > > > > because I definitely wasn't using prelinking (the prelink binary
    > > > > > > > > wasn't even installed on the machine until today). But finding the
    > > > > > > > > root cause of this may solve both problems.
    > > > > > > >
    > > > > > > > switch_names() buggered in case of short names on both sides. That should
    > > > > > > > help:
    > > > > > > >
    > > > > > > > >From 2acda856910b774717e0290bbf948c7dee0f2e1a Mon Sep 17 00:00:00 2001
    > > > > > > > From: Al Viro <viro@zeniv.linux.org.uk>
    > > > > > > > Date: Mon, 3 Nov 2008 15:03:50 -0500
    > > > > > > > Subject: [PATCH] fix switch_names() breakage in short-to-short case
    > > > > > > >
    > > > > > > > We want ->name.len to match the resulting name on *both*
    > > > > > > > source and target
    > > > > > > >
    > > > > > > > Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
    > > > > > >
    > > > > > > please credit kmemcheck in the commit message and use an appropriate
    > > > > > > Reported-by line as well. Thanks,
    > > > > >
    > > > > > Did this fix ever get merged into Linus's tree?
    > > > >
    > > > > So far no.
    > > >
    > > > I queued the below for 2.6.28 inclusion and tagged for -stable
    > > > backporting.
    > >
    > >
    > > What ever happened to this patch? Did it not make it into Linus's tree
    > > somehow?
    > >
    >
    > Stuck in -mm. Sent to Al on Dec 1, ignored. As usual.
    >
    > Al, what's going on? Are you thinking that I'm planning on merging
    > these myself? Because if you're on the To: then my intention is that the
    > patch be processed by yourself.
    >

    Ping?


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