Bug 215899 - SELinux is preventing /usr/sbin/postmap (postfix_map_t) "search" to nscd (nscd_var_run_t).
SELinux is preventing /usr/sbin/postmap (postfix_map_t) "search" to nscd (nsc...
Product: Fedora
Classification: Fedora
Component: selinux-policy-targeted (Show other bugs)
All Linux
medium Severity medium
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Assigned To: Daniel Walsh
Ben Levenson
Depends On:
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Reported: 2006-11-16 04:54 EST by Matěj Cepl
Modified: 2018-04-11 04:09 EDT (History)
1 user (show)

See Also:
Fixed In Version: Current
Doc Type: Bug Fix
Doc Text:
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Clone Of:
Last Closed: 2007-08-22 10:13:59 EDT
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Regression: ---
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oVirt Team: ---
RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: ---

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Description Matěj Cepl 2006-11-16 04:54:18 EST
Description of problem:

Version-Release number of selected component (if applicable):
When running postmap on /etc/postfix/transport I get this SELinux denial:

avc: denied { search } for comm='"postmap"' dev='dm-1' egid='0' euid='0'
exe='"/usr/sbin/postmap"' exit='-13' fsgid='0' fsuid='0' gid='0' items='0'
name='"nscd"' pid='10332' scontext=user_u:system_r:postfix_map_t:s0 sgid='0'
subj='user_u:system_r:postfix_map_t:s0' suid='0' tclass='dir'
tcontext=system_u:object_r:nscd_var_run_t:s0 tty='(none)' uid='0' 

How reproducible:

Steps to Reproduce:
1.change /etc/postfix/transport
2.run this Makefile

%.db : %
        postmap $<

DBASES = sasl_passwd.db sender_canonical.db tls_servers.db transport.db virtual.db

all: $(DBASES)
        postfix reload
        postfix check

        rm $(DBASES)

3. setroubleshoot baloon will pop up
Actual results:
.db file is created, but SELinux denial is reported as well (I am not sure, what
exact consequences it has for usability of postfix, when the .db file is really

Expected results:
There should be no SELinux issue

Additional info:
Comment 1 Matěj Cepl 2006-11-16 04:57:40 EST
Moreover, the content of .db file seems to be correct:

Python 2.4.4 (#1, Oct 23 2006, 13:58:00) 
[GCC 4.1.1 20061011 (Red Hat 4.1.1-30)] on linux2
Type "help", "copyright", "credits" or "license" for more information.
>>> import anydbm
>>> d=anydbm.open("transport.db","r")
>>> d
{'redhat.com\x00': 'smtp:[pobox.stuttgart.redhat.com]\x00', '.vysocina\x00':
':\x00', '*\x00': 'smtp:[smtp.seznam.cz:995]\x00', 'localhost\x00': ':\x00'}
Comment 2 Daniel Walsh 2006-11-17 14:19:59 EST
Fixed in  selinux-policy-2.4.5-1
Comment 3 Daniel Walsh 2007-08-22 10:13:59 EDT
Fixed in current release

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