Mohammed El-Afifi wrote:
> On Sunday 12 August 2007 02:27:03 Mohammed El-Afifi wrote:
> > Just one last question: is there a way to make ldconfig work with
> > SELinux in the enforcing mode, for example by updating the glibc
> > package(which provides ldconfig) or alternatively updating SELinux
> > packages? I'm currently having version 2.6-3 of glibc installed on
> > my system.
>
> Here's what I've done in an attempt to resolve the AVCs so far on my
> own system:
>
> I have a directory that contains shared libraries that I want ldconfig
> to know about. It and the files in it originally had this selinux
> context:
>
> user_u:object_r:user_home_t
>
> I changed that to:
>
> system_u:object_r:lib_t
>
> using this command:
>
> sudo chcon -R system_u:object_r:lib_t
/home/depot/collections/tora-1.3.21/lib
>
> This eliminated all but one of my failures in selinux. (Some time
> ago, I changed the context of my $ORACLE_HOME/lib directory to
> eliminate similar errors.) But I still see this:
>
> type=AVC msg=audit(1186928212.253:1139): avc: denied { dac_override
} for pid=5782 comm="ldconfig" capability=1
scontext=user_u:system_r:ldconfig_t:s0
tcontext=user_u:system_r:ldconfig_t:s0 tclass=capability
> type=SYSCALL msg=audit(1186928212.253:1139): arch=40000003
syscall=195 success=yes exit=0 a0=8bbdc08 a1=bfc4bb80 a2=8bbb801
a3=8bbb801 items=0 ppid=5590 pid=5782 auid=500 uid=0 gid=0 euid=0
suid=0 fsuid=0 egid=0 sgid=0 fsgid=0 tty=pts2 comm="ldconfig"
exe="/sbin/ldconfig" subj=user_u:system_r:ldconfig_t:s0 key=(null)
> type=AVC msg=audit(1186928212.255:1140): avc: denied { search } for
pid=5782 comm="ldconfig" name="/" dev=dm-1 ino=2
scontext=user_u:system_r:ldconfig_t:s0
tcontext=system_u:object_r:home_root_t:s0 tclass=dir
> type=SYSCALL msg=audit(1186928212.255:1140): arch=40000003
syscall=195 success=yes exit=0 a0=bfc4ac00 a1=bfc4bc5c a2=a000
a3=8bbca88 items=0 ppid=5590 pid=5782 auid=500 uid=0 gid=0 euid=0
suid=0 fsuid=0 egid=0 sgid=0 fsgid=0 tty=pts2 comm="ldconfig"
exe="/sbin/ldconfig" subj=user_u:system_r:ldconfig_t:s0 key=(null)
>
> I believe these failures are an error in the shipped policy for
> ldconfig. But I'm not sure. My reasoning is that ldconfig should be
> able to search and/or read the root directory. I believe that both of
> those failures are happening in a stat64() system call.
>
> At this point, I don't know what to do about this. I see that Daniel
> Walsh recommends trying selinux-policy-2.6.4-35.fc7 in bug #248703,
> but I only see -33.fc7 in updates-testing. I wonder where I could get
> the newer package?
>
> --
> Garry T. Williams --- +1 678 656-4579
The package selinux-policy-2.6.4-35.fc7 is available for download at
the link
http://koji.fedoraproject.org/packages/selinux-policy/2.6.4/35.fc7/noarch/selinux-policy-2.6.4-35.fc7.noarch.rpm.
I've just found this link and downloaded the package, but I haven't
installed it yet. However, the topmost changelog at the package info
page http://koji.fedoraproject.org/koji/buildinfo?buildID=13386 for
this specific release of the package tells that it fixed the problem
of ldconfig with the terminal specifically. I hope it works as stated.
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I will put it in fedora-testing today along with fixes for your problem.
You can always modify selinux policy by executing
grep ldconfig /var/log/audit/audit.log | audit2allow -M myldconfig
semodule -i myldconfig.pp
