Bug 12602

Summary:	CRED changes causing setuid failures
Product:	Other	Reporter:	Rafael J. Wysocki (rjw)
Component:	Other	Assignee:	other_other
Status:	CLOSED CODE_FIX
Severity:	normal
Priority:	P1
Hardware:	All
OS:	Linux
Kernel Version:	2.6.29-rc2	Subsystem:
Regression:	Yes	Bisected commit-id:
Bug Depends on:
Bug Blocks:	12398

Description Rafael J. Wysocki 2009-02-01 14:27:24 UTC

Subject    : [2.6.29-rc2 regression] CRED changes causing setuid failures
Submitter  : David Smith <dsmith@redhat.com>
Date       : 2009-01-29 21:35
References : http://marc.info/?l=linux-kernel&m=123326501813668&w=4

This entry is being used for tracking a regression from 2.6.28.  Please don't
close it until the problem is fixed in the mainline.

Reportedly caused by:

commit d84f4f992cbd76e8f39c488cf0c5d123843923b1
Author: David Howells <dhowells@redhat.com>
Date:   Fri Nov 14 10:39:23 2008 +1100

    CRED: Inaugurate COW credentials

    Signed-off-by: David Howells <dhowells@redhat.com>
    Acked-by: James Morris <jmorris@namei.org>
    Signed-off-by: James Morris <jmorris@namei.org>

First-Bad-Commit : d84f4f992cbd76e8f39c488cf0c5d123843923b1

Comment 1 Rafael J. Wysocki 2009-02-04 15:46:46 UTC

On Wednesday 04 February 2009, David Smith wrote:
> Rafael J. Wysocki wrote:
> > This message has been generated automatically as a part of a report
> > of recent regressions.
> > 
> > The following bug entry is on the current list of known regressions
> > from 2.6.28.  Please verify if it still should be listed and let me know
> > (either way).
> > 
> > 
> > Bug-Entry   : http://bugzilla.kernel.org/show_bug.cgi?id=12602
> > Subject             : CRED changes causing setuid failures
> > Submitter   : David Smith <dsmith@redhat.com>
> > Date                : 2009-01-29 21:35 (7 days old)
> > First-Bad-Commit:
> http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=d84f4f992cbd76e8f39c488cf0c5d123843923b1
> > References  : http://marc.info/?l=linux-kernel&m=123326501813668&w=4
> 
> I've verified this still exists in 2.6.29-rc3.
> 
> (git describe says I'm at v2.6.29-rc3-495-gdcf6a79)

Comment 2 Rafael J. Wysocki 2009-02-08 11:40:09 UTC

Fixed by commit 0bf2f3aec5474da80a60e1baca629af87ecb67b6 .