ldconfig denials during mock builds

Todd Zullinger tmz at pobox.com
Sat Aug 4 19:45:57 UTC 2007


Hi,

I recently noticed some problems when building packages for rawhide
with mock.  The mock logs have a log of these:

/sbin/ldconfig: Can't create temporary cache file /etc/ld.so.cache~: Permission denied
error: %postun(glibc-2.6-4.i686) scriptlet failed, exit status 1

The audit messages look like this:

avc: denied { read } for comm="ldconfig" dev=sda2 egid=502 euid=0 exe="/sbin/ldconfig" exit=-13 fsgid=502 fsuid=0 gid=502 items=0 name="lib" pid=4247 scontext=user_u:system_r:ldconfig_t:s0 sgid=502 subj=user_u:system_r:ldconfig_t:s0 suid=0 tclass=dir tcontext=user_u:object_r:var_lib_t:s0 tty=(none) uid=0 

avc: denied { write } for comm="ldconfig" dev=sda2 egid=502 euid=0 exe="/sbin/ldconfig" exit=-13 fsgid=502 fsuid=0 gid=502 items=0 name="etc" pid=4247 scontext=user_u:system_r:ldconfig_t:s0 sgid=502 subj=user_u:system_r:ldconfig_t:s0 suid=0 tclass=dir tcontext=user_u:object_r:var_lib_t:s0 tty=(none) uid=0 

I'm guessing this has to do with the contexts on etc:

$ ll -dZ /etc/ /var/lib/mock/fedora-development-i386/root/etc/
drwxr-xr-x  root  root system_u:object_r:etc_t          /etc/
drwxrwsr-x  build mock user_u:object_r:var_lib_t        /var/lib/mock/fedora-development-i386/root/etc/

Is this something that needs to be fixed in mock or in the selinux
policy?

Thanks,

-- 
Todd        OpenPGP -> KeyID: 0xBEAF0CE3 | URL: www.pobox.com/~tmz/pgp
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
When I think about all the crap I learned in high school ... it's a
wonder I can think at all.
    -- Paul Simon

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