Cannot run ldconfig in a home directory

Cannot run ldconfig in a home directory

[John D. Ramsdell]

I am playing around with the source distribution of the audit package.
I modified some code, but I don't want to install the modified version
in the usual locations, just in case I break something.  So I
configured the source distribution using:

   $ ./configure --prefix=$HOME/opt/audit

and then did the usual "make; make install".  

The audit package contains shared libraries, and the installation
scripts run ldconfig using the -n option.  This option ensures
ldconfig will not process the trusted directories (/usr/lib and /lib)
or those specified in /etc/ld.so.conf, thus allowing it to be run
by an unprivileged user; however, the current SELinux for Fedora 7
prevents this usage of ldconfig.  Setroubleshoot reports:

Summary:
SELinux is preventing /sbin/ldconfig (ldconfig_t) "search" to home
(home_root_t).

Detailed Description:
SELinux denied access requested by /sbin/ldconfig. It is not expected
that this access is required by /sbin/ldconfig and this access may
signal an intrusion attempt. It is also possible that the specific
version or configuration of the application is causing it to require
additional access.

Obviously, it is easy enough for me to disable SELinux while playing
with the audit sources, but it seems to that with this policy, if I
were working on a machine I did not control, I wouldn't be able
properly test an installation.

John

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Re: Cannot run ldconfig in a home directory

[Michal Piotrowski]

Hi,

On 17 Jul 2007 07:39:30 -0400, John D. Ramsdell <ramsdell@mitre.org> wrote:
> I am playing around with the source distribution of the audit package.
> I modified some code, but I don't want to install the modified version
> in the usual locations, just in case I break something.  So I
> configured the source distribution using:
>
>    $ ./configure --prefix=$HOME/opt/audit
>
> and then did the usual "make; make install".
>
> The audit package contains shared libraries, and the installation
> scripts run ldconfig using the -n option.  This option ensures
> ldconfig will not process the trusted directories (/usr/lib and /lib)
> or those specified in /etc/ld.so.conf, thus allowing it to be run
> by an unprivileged user; however, the current SELinux for Fedora 7
> prevents this usage of ldconfig.  Setroubleshoot reports:
>
> Summary:
> SELinux is preventing /sbin/ldconfig (ldconfig_t) "search" to home
> (home_root_t).
>
> Detailed Description:
> SELinux denied access requested by /sbin/ldconfig. It is not expected
> that this access is required by /sbin/ldconfig and this access may
> signal an intrusion attempt. It is also possible that the specific
> version or configuration of the application is causing it to require
> additional access.
>
> Obviously, it is easy enough for me to disable SELinux while playing
> with the audit sources, but it seems to that with this policy, if I
> were working on a machine I did not control, I wouldn't be able
> properly test an installation.

man audit2allow ;)

>
> John
>

Regards,
Michal

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Re: Cannot run ldconfig in a home directory

[John D. Ramsdell]

"Michal Piotrowski" <michal.k.k.piotrowski@gmail.com> writes:

> On 17 Jul 2007 07:39:30 -0400, John D. Ramsdell <ramsdell@mitre.org> wrote:

> > Obviously, it is easy enough for me to disable SELinux while
> > playing with the audit sources, but it seems to that with this

This should have said, "but it seems to me that with this"...

> > policy, if I were working on a machine I did not control, I
> > wouldn't be able properly test an installation.
> 
> man audit2allow ;)

By "not control", I meant not having root privileges.

John

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