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Go Back   Linux Archive > Redhat > Fedora SELinux Support

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Old 03-02-2009, 10:17 AM
Brian Chadwick
Default postfix trying to access /boot AVC


This is happening after the last round of F10 updates involving postfix.




SELinux is preventing smtpd (postfix_smtpd_t) "getattr" to /boot (boot_t).

Detailed Description:

[SELinux is in permissive mode, the operation would have been denied but was
permitted due to permissive mode.]

SELinux denied access requested by smtpd. It is not expected that this
access is
required by smtpd and this access may signal an intrusion attempt. It is
possible that the specific version or configuration of the application is
causing it to require additional access.

Allowing Access:

Sometimes labeling problems can cause SELinux denials. You could try to
the default system file context for /boot,

restorecon -v '/boot'

If this does not work, there is currently no automatic way to allow this
Instead, you can generate a local policy module to allow this access -
see FAQ
(http://fedora.redhat.com/docs/selinux-faq-fc5/#id2961385) Or you can
SELinux protection altogether. Disabling SELinux protection is not
Please file a bug report (http://bugzilla.redhat.com/bugzilla/enter_bug.cgi)
against this package.

Additional Information:

Source Context system_u:system_rostfix_smtpd_t:s0
Target Context system_ubject_r:boot_t:s0
Target Objects /boot [ dir ]
Source smtpd
Source Path /usr/libexec/postfix/smtpd
Port <Unknown>
Host admin.brianac.com.au
Source RPM Packages postfix-2.5.6-1.fc10
Target RPM Packages filesystem-2.4.19-1.fc10
Policy RPM selinux-policy-3.5.13-45.fc10
Selinux Enabled True
Policy Type targeted
MLS Enabled True
Enforcing Mode Permissive
Plugin Name catchall_file
Host Name admin.brianac.com.au
Platform Linux admin.brianac.com.au #1 SMP
Wed Feb 11
23:35:37 EST 2009 i686 athlon
Alert Count 294
First Seen Thu 26 Feb 2009 20:46:08 EST
Last Seen Mon 02 Mar 2009 10:46:05 EST
Local ID cbf2bcef-ae64-4d65-bd35-e8226a7d35a1
Line Numbers

Raw Audit Messages

node=admin.brianac.com.au type=AVC msg=audit(1235954765.372:3918): avc:
denied { getattr } for pid=11567 comm="smtpd" path="/boot" dev=sda2
ino=2 scontext=system_u:system_rostfix_smtpd_t:s0
tcontext=system_ubject_r:boot_t:s0 tclass=dir

node=admin.brianac.com.au type=SYSCALL msg=audit(1235954765.372:3918):
arch=40000003 syscall=195 success=yes exit=0 a0=bfe00176 a1=bfe0056c
a2=811ff4 a3=bfe0017c items=0 ppid=2421 pid=11567 auid=4294967295 uid=89
gid=89 euid=89 suid=89 fsuid=89 egid=89 sgid=89 fsgid=89 tty=(none)
ses=4294967295 comm="smtpd" exe="/usr/libexec/postfix/smtpd"
subj=system_u:system_rostfix_smtpd_t:s0 key=(null)

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