Re: Strange denials

Hi,

From the policy it looks like cobbler should only be allowed to
"append" to the log file and not "write" (overwrite) it:

  allow daemon logfile:file { append getattr ioctl lock };

So the question is, why is cobbler doing something other than appending
to its log?

Cheers
Phil

On Sat, 2020-10-24 at 21:27 -0600, Orion Poplawski wrote:
> I'm seeing the following on my Rawhide VM:
> 
> type=AVC msg=audit(1603594049.879:534): avc:  denied  { write } for 
> pid=1073 comm="cobblerd" name="cobbler.log" dev="dm-0" ino=663024 
> scontext=system_u:system_r:cobblerd_t:s0 
> tcontext=system_u:object_r:cobbler_var_log_t:s0 tclass=file
> permissive=0
> 
> 
> This makes no sense to me.  sesearch seems to indicate that this
> should 
> be allowed (as you would expect):
> 
> # sesearch -s cobblerd_t -t cobbler_var_log_t --allow
> allow cobblerd_t cobbler_var_log_t:dir { add_name getattr ioctl lock 
> open search write };
> allow cobblerd_t cobbler_var_log_t:file { create open read setattr };
> allow cobblerd_t file_type:filesystem getattr;
> allow daemon logfile:file { append getattr ioctl lock };
> allow domain file_type:blk_file map; [ domain_can_mmap_files ]:True
> allow domain file_type:chr_file map; [ domain_can_mmap_files ]:True
> allow domain file_type:file map; [ domain_can_mmap_files ]:True
> allow domain file_type:lnk_file map; [ domain_can_mmap_files ]:True
> 
> selinux-policy-3.14.7-6.fc34.noarch
> 5.10.0-0.rc0.20201021git071a0578b0ce.49.fc34.x86_64
> 
> What am I missing?
> 
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