Your message dated Sat, 9 May 2009 21:47:32 +0200
with message-id <[email protected]>
and subject line Re: Bug#526749: passwd: Infinite loop when reaching 60000 users
has caused the Debian Bug report #526749,
regarding passwd: Infinite loop when reaching 60000 users
to be marked as done.
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526749: http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=526749
Debian Bug Tracking System
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--- Begin Message ---
Package: passwd
Version: 1:4.1.1-6
Severity: normal
As far as I can see, when looking for the next available user id, useradd does:
- take max user id + 1
- if id > 60000 then start from 1000 and search for gaps
- repeat
So if all user ids from 1000 to 60000 are taken, useradd is in an infinite loop.
Admittedly not a common case, but I guess it needs to return an error in that
case.
-- System Information:
Debian Release: 5.0.1
APT prefers stable
APT policy: (500, 'stable'), (300, 'unstable'), (1, 'experimental')
Architecture: i386 (i686)
Kernel: Linux 2.6.26-1-vserver-686 (SMP w/1 CPU core)
Locale: LANG=fr_FR.UTF-8, LC_CTYPE=fr_FR.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/bash
Versions of packages passwd depends on:
ii debianutils 2.30 Miscellaneous utilities specific t
ii libc6 2.9-8 GNU C Library: Shared libraries
ii libpam-modules 1.0.1-5+lenny1 Pluggable Authentication Modules f
ii libpam0g 1.0.1-5+lenny1 Pluggable Authentication Modules l
ii libselinux1 2.0.65-5 SELinux shared libraries
passwd recommends no packages.
passwd suggests no packages.
-- debconf information excluded
--- End Message ---
--- Begin Message ---
Version: 1:4.1.3-1
On Sun, May 03, 2009 at 08:21:03PM +0200, Sylvain Beucler wrote:
> On Sun, May 03, 2009 at 04:43:55PM +0200, Nicolas François wrote:
> >
> > With 1:4.1.3.1-1, there are no problems.
> > 0m0.570s to add the last user
> > 0m0.178s to report afterward:
> > useradd: Can't get unique UID (no more available UIDs)
> > useradd: can't create user
> >
> > With 1:4.1.1-6, I could confirm the problem:
> > 0m0.371s to add the last user
> > 9m53.508s to report afterward:
> > Can't get unique UID (no more available UIDs)
> > useradd: can't create user
> >
> > So this was not related to LDAP, but getpwent() rewinds to the
> > first entry after it returned NULL.
> >
> > As the process eventually finishes (even if 10m on a fast box is quite
> > long), I don't think it requires an update for Lenny.
> >
> > Any other opinion?
>
> This is a corner case that I triggered by searching the max users
> limit, this isn't critical, especially since it's fixed in the next
> version :)
Bug closed with the right version.
Best Regards,
--
Nekral
--- End Message ---
