full-disclosure - Re: rPSA-2007-0212-1 util-linux

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Message-Id: <457E4C5B-7C02-405E-A707-58E37E3EDAFD@gmail.com>
Date: Fri, 12 Oct 2007 05:02:48 -0700
From: Andrew Farmer <andfarm@...il.com>
To: yearsilent <yearsilent@...oo.com>
Cc: Full Disclosure <full-disclosure@...ts.grok.org.uk>
Subject: Re: rPSA-2007-0212-1 util-linux

On 12 Oct 07, at 01:34, yearsilent wrote:
> could anybody explain this bug?
>
>   I saw the git diff:
>
>
>   -                               setuid(getuid());
>   -                               setgid(getgid());
>   +                               if(setgid(getgid()) < 0)
>   +                                       die(EX_FAIL, _("umount:  
> cannot set group id: %s"), strerror(errno));
>   +
>   +                               if(setuid(getuid()) < 0)
>   +                                       die(EX_FAIL, _("umount:  
> cannot set user id: %s"), strerror(errno));
>   +
>
>
> not only root can do mount ? what condition could cause setuid  
> failed ?

setuid() fails if the operation would create more processes owned by  
the target user than the number specified by that user's process- 
count limit.

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