Weird selinux problem with sendmail

Paul Howarth paul at city-fan.org
Mon Nov 26 17:49:51 UTC 2007


Knute Johnson wrote:
> I loaded F8 onto my old mail server computer and started to 
> reassemble it.  But I'm getting a strange message from sendmail and a 
> selinux avc to go with it.  I do not have a .forward file and I have 
> an almost identical system running that doesn't have one either and 
> doesn't give any errors.  I don't know if this is a sendmail problem 
> or a selinux problem.  The mail comes and goes OK.  Any ideas?
> 
> Thanks,
> 
> knute...
> 
> Nov 25 00:32:39 www sendmail[7802]: lAP8Wche007801: forward 
> /home/knute/.forward.www: Permission denied
> Nov 25 00:32:39 www sendmail[7802]: lAP8Wche007801: forward 
> /home/knute/.forward: Permission denied
> 
> Nov 25 00:40:55 www kernel: audit(1195980055.494:277): avc:  denied  
> { getattr } for  pid=7949 comm="sendmail" path="/home/knute" dev=dm-0 
> ino=262146 scontext=unconfined_u:system_r:sendmail_t:s0 
> tcontext=unconfined_u:object_r:unconfined_home_dir_t:s0 tclass=dir

This looks to be sendmail checking to see if you have a .forward file 
and getting an SELinux denial when it does so. Since you don't have one, 
the failure doesn't have an impact.

I don't know where the unconfined_home_dir_t comes from though. I'm 
running F8 with targeted policy and the home directories are 
user_home_dir_t rather than unconfined_home_dir_t.

What's the output of:

# sestatus

and:

# ls -lZ /home/knute

and:

# restorecon -Fv /home/knute

Paul.




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