Fwd: Re: kern/21463: [linux] Linux compatability mode should not allow setuid programs

Marcin Cieslak saper at l.saper.info
Mon Nov 26 23:40:01 UTC 2012


The following reply was made to PR kern/21463; it has been noted by GNATS.

From: Marcin Cieslak <saper at l.saper.info>
To: bug-followup at FreeBSD.org
Cc:  
Subject: Fwd: Re: kern/21463: [linux] Linux compatability mode should not
 allow setuid programs
Date: Mon, 26 Nov 2012 23:30:51 +0000

 From: Marcin Cieslak <saper at saper.info>
 Newsgroups: gmane.os.freebsd.devel.emulation
 Subject: Re: kern/21463: [linux] Linux compatability mode should not allow setuid programs
 
 We implement AT_UID and AT_GID process auxillary vector
 (procstat -x) elements so at least userland library
 (such as glibc) has a possibility to enter "secure mode"
 on startup.
 
 Not sure if there is anything we can do more (except
 for disabling the feature altogether) to tell userland
 to be careful.
 
 //Marcin
 
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