selinux prelink avc's (broken paths in policy?)

dragoran dragoran at feuerpokemon.de
Tue May 23 15:17:06 UTC 2006


dragoran wrote:
> dragoran wrote:
>> Paul Howarth wrote:
>>> On Tue, 2006-05-23 at 16:28 +0200, dragoran wrote:
>>>  
>>>> dragoran wrote:
>>>>   
>>>>> dragoran wrote:
>>>>>     
>>>>>> audit(1147793154.831:353): avc:  denied  { execute_no_trans } 
>>>>>> for  pid=5195 comm="prelink" name="ld-2.4.so" dev=md0 ino=8061163 
>>>>>> scontext=system_u:system_r:prelink_t:s0 
>>>>>> tcontext=system_u:object_r:lib_t:s0 tclass=file
>>>>>> audit(1147793154.831:354): avc:  denied  { execute_no_trans } 
>>>>>> for  pid=5196 comm="prelink" name="ld-2.4.so" dev=md0 ino=8061163 
>>>>>> scontext=system_u:system_r:prelink_t:s0 
>>>>>> tcontext=system_u:object_r:lib_t:s0 tclass=file
>>>>>> audit(1147793155.019:355): avc:  denied  { execute_no_trans } 
>>>>>> for  pid=5197 comm="prelink" name="ld-2.4.so" dev=md0 ino=8061163 
>>>>>> scontext=system_u:system_r:prelink_t:s0 
>>>>>> tcontext=system_u:object_r:lib_t:s0 tclass=file
>>>>>> audit(1147793155.447:356): avc:  denied  { execute_no_trans } 
>>>>>> for  pid=5198 comm="prelink" name="ld-2.4.so" dev=md0 ino=8061163 
>>>>>> scontext=system_u:system_r:prelink_t:s0 
>>>>>> tcontext=system_u:object_r:lib_t:s0 tclass=file
>>>>>> audit(1147793156.255:357): avc:  denied  { execute_no_trans } 
>>>>>> for  pid=5199 comm="prelink" name="ld-2.4.so" dev=md0 ino=8061163 
>>>>>> scontext=system_u:system_r:prelink_t:s0 
>>>>>> tcontext=system_u:object_r:lib_t:s0 tclass=file
>>>>>> I am using FC5 with selinux-policy-targeted-2.2.36-2.fc5
>>>>>> whats gonig on? is a file misslabeled or is this a policy bug?
>>>>>>
>>>>>> -- 
>>>>>> fedora-selinux-list mailing list
>>>>>> fedora-selinux-list at redhat.com
>>>>>> https://www.redhat.com/mailman/listinfo/fedora-selinux-list
>>>>>>
>>>>>>
>>>>>>         
>>>>> hello?
>>>>> any solution for this problem?
>>>>>
>>>>>
>>>>>       
>>>> it happend again...
>>>> am I the only  one seeing this?
>>>> audit(1148393411.538:2907): avc:  denied  { execute_no_trans } for  
>>>> pid=16856 comm="prelink" name="ld-2.4.so" dev=md0 ino=8060939 
>>>> scontext=system_u:system_r:prelink_t:s0 
>>>> tcontext=system_u:object_r:lib_t:s0 tclass=file
>>>> audit(1148393411.794:2908): avc:  denied  { execmod } for  
>>>> pid=16859 comm="ld-linux.so.2" name="libGLcore.so.1.0.8762" dev=md0 
>>>> ino=29797475 scontext=system_u:system_r:prelink_t:s0 
>>>> tcontext=root:object_r:lib_t:s0 tclass=file
>>>> audit(1148393411.814:2909): avc:  denied  { execmod } for  
>>>> pid=16860 comm="ld-linux.so.2" name="libnvidia-tls.so.1.0.8762" 
>>>> dev=md0 ino=30869146 scontext=system_u:system_r:prelink_t:s0 
>>>> tcontext=root:object_r:lib_t:s0 tclass=file
>>>> audit(1148393412.438:2910): avc:  denied  { unlink } for  pid=13702 
>>>> comm="prelink" name="prelink.cache" dev=md0 ino=7012828 
>>>> scontext=system_u:system_r:prelink_t:s0 
>>>> tcontext=user_u:object_r:etc_t:s0 tclass=file
>>>> prelink seems to be completly broken and nobody seems to notice it?
>>>>     
>>>
>>> I'm not seeing this anywhere.
>>>
>>> Perhaps it's because /lib/ld-2.4.so is lib_t rather than ld_so_t on 
>>> your
>>> system?
>>>
>>> Paul.
>>>
>>>
>>>
>>>   
>> ls -Z /lib/ld-2.4.so
>> -rwxr-xr-x  root     root     system_u:object_r:ld_so_t        
>> /lib/ld-2.4.so
>> ls -Z /lib64/ld-2.4.so
>> -rwxr-xr-x  root     root     system_u:object_r:lib_t
>> seems that you are correct lets hope that this wont happen again.
>>
>> -- 
>> fedora-selinux-list mailing list
>> fedora-selinux-list at redhat.com
>> https://www.redhat.com/mailman/listinfo/fedora-selinux-list
>>
>>
> this *is* a bug
> restorecon /lib64/ld-2.4.so
> does not change it to ld_so_t (had to do a chcon)
>
>
>

I did a complete relabel and the result is
ls -Z /lib64/ld-2.4.so
-rwxr-xr-x  root     root     system_u:object_r:lib_t          
/lib64/ld-2.4.so
I also noticed this:
drwxr-xr-x  root     root     system_u:object_r:bin_t          bin
drwxr-xr-x  root     root     system_u:object_r:boot_t         boot
drwxr-xr-x  root     root     system_u:object_r:device_t       dev
drwxr-xr-x  root     root     system_u:object_r:etc_t          etc
drwxr-xr-x  root     root     system_u:object_r:home_root_t    home
drwxr-xr-x  root     root     system_u:object_r:lib_t          lib
drwxr-xr-x  root     root     system_u:object_r:lib_t          lib64
drwx------  root     root     system_u:object_r:lost_found_t   lost+found
drwxr-xr-x  root     root     system_u:object_r:mnt_t          media
drwxr-xr-x  root     root     system_u:object_r:mnt_t          misc
drwxr-xr-x  root     root     system_u:object_r:mnt_t          mnt
dr-xr-xr-x  root     root     system_u:object_r:mnt_t          net
drwxr-xr-x  root     root     system_u:object_r:usr_t          opt
dr-xr-xr-x  root     root     system_u:object_r:proc_t         proc
drwxr-x---  root     root     root:object_r:user_home_dir_t    root
drwxr-xr-x  root     root     system_u:object_r:sbin_t         sbin
drwxr-xr-x  root     root     system_u:object_r:security_t     selinux
drwxr-xr-x  root     root     system_u:object_r:var_t          srv
drwxr-xr-x  root     root     system_u:object_r:sysfs_t        sys
drwxrwxrwt  root     root     system_u:object_r:tmp_t          tmp
drwxr-xr-x  root     root     system_u:object_r:usr_t          usr
drwxr-xr-x  root     root     system_u:object_r:var_t          var
looks incorrect too whats going on here?




More information about the fedora-selinux-list mailing list