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Go Back   Linux Archive > Redhat > Fedora SELinux Support

 
 
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Old 08-21-2008, 04:50 PM
Antonio Olivares
 
Default selinux and readahead

Dear all,

I have encountered the following setroubleshoot warning:


Summary:

SELinux is preventing readahead (readahead_t) "read" to inotify (inotifyfs_t).

Detailed Description:

SELinux denied access requested by readahead. It is not expected that this
access is required by readahead and this access may signal an intrusion attempt.
It is also 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 restore
the default system file context for inotify,

restorecon -v 'inotify'

If this does not work, there is currently no automatic way to allow this access.
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 disable
SELinux protection altogether. Disabling SELinux protection is not recommended.
Please file a bug report (http://bugzilla.redhat.com/bugzilla/enter_bug.cgi)
against this package.

Additional Information:

Source Context system_u:system_r:readahead_t:SystemLow-SystemHigh
Target Context system_ubject_r:inotifyfs_t
Target Objects inotify [ dir ]
Source readahead
Source Path /usr/sbin/readahead
Port <Unknown>
Host localhost.localdomain
Source RPM Packages readahead-1.4.4-1.fc10
Target RPM Packages
Policy RPM selinux-policy-3.5.1-4.fc10
Selinux Enabled True
Policy Type targeted
MLS Enabled True
Enforcing Mode Enforcing
Plugin Name catchall_file
Host Name localhost.localdomain
Platform Linux localhost.localdomain
2.6.27-0.244.rc2.git1.fc10.i686 #1 SMP Fri Aug 8
13:26:20 EDT 2008 i686 i686
Alert Count 2
First Seen Thu 21 Aug 2008 04:04:26 AM CDT
Last Seen Thu 21 Aug 2008 04:04:28 AM CDT
Local ID c67dc8d2-0096-4510-9075-cbea7074ffa2
Line Numbers

Raw Audit Messages

host=localhost.localdomain type=AVC msg=audit(1219309468.106:155): avc: denied { read } for pid=7574 comm="readahead" path="inotify" dev=inotifyfs ino=1 scontext=system_u:system_r:readahead_t:s0-s0:c0.c1023 tcontext=system_ubject_r:inotifyfs_t:s0 tclass=dir

host=localhost.localdomain type=SYSCALL msg=audit(1219309468.106:155): arch=40000003 syscall=11 success=yes exit=0 a0=9f292d0 a1=9f29368 a2=9f295c0 a3=0 items=0 ppid=7564 pid=7574 auid=0 uid=0 gid=0 euid=0 suid=0 fsuid=0 egid=0 sgid=0 fsgid=0 tty=(none) ses=24 comm="readahead" exe="/usr/sbin/readahead" subj=system_u:system_r:readahead_t:s0-s0:c0.c1023 key=(null)




I do not know if readahead should be denied or not? What do you recommend that I do?

Regards,

Antonio




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Old 09-03-2008, 03:19 PM
Daniel J Walsh
 
Default selinux and readahead

-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1

Antonio Olivares wrote:
> Dear all,
>
> I have encountered the following setroubleshoot warning:
>
>
> Summary:
>
> SELinux is preventing readahead (readahead_t) "read" to inotify (inotifyfs_t).
>
> Detailed Description:
>
> SELinux denied access requested by readahead. It is not expected that this
> access is required by readahead and this access may signal an intrusion attempt.
> It is also 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 restore
> the default system file context for inotify,
>
> restorecon -v 'inotify'
>
> If this does not work, there is currently no automatic way to allow this access.
> 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 disable
> SELinux protection altogether. Disabling SELinux protection is not recommended.
> Please file a bug report (http://bugzilla.redhat.com/bugzilla/enter_bug.cgi)
> against this package.
>
> Additional Information:
>
> Source Context system_u:system_r:readahead_t:SystemLow-SystemHigh
> Target Context system_ubject_r:inotifyfs_t
> Target Objects inotify [ dir ]
> Source readahead
> Source Path /usr/sbin/readahead
> Port <Unknown>
> Host localhost.localdomain
> Source RPM Packages readahead-1.4.4-1.fc10
> Target RPM Packages
> Policy RPM selinux-policy-3.5.1-4.fc10
> Selinux Enabled True
> Policy Type targeted
> MLS Enabled True
> Enforcing Mode Enforcing
> Plugin Name catchall_file
> Host Name localhost.localdomain
> Platform Linux localhost.localdomain
> 2.6.27-0.244.rc2.git1.fc10.i686 #1 SMP Fri Aug 8
> 13:26:20 EDT 2008 i686 i686
> Alert Count 2
> First Seen Thu 21 Aug 2008 04:04:26 AM CDT
> Last Seen Thu 21 Aug 2008 04:04:28 AM CDT
> Local ID c67dc8d2-0096-4510-9075-cbea7074ffa2
> Line Numbers
>
> Raw Audit Messages
>
> host=localhost.localdomain type=AVC msg=audit(1219309468.106:155): avc: denied { read } for pid=7574 comm="readahead" path="inotify" dev=inotifyfs ino=1 scontext=system_u:system_r:readahead_t:s0-s0:c0.c1023 tcontext=system_ubject_r:inotifyfs_t:s0 tclass=dir
>
> host=localhost.localdomain type=SYSCALL msg=audit(1219309468.106:155): arch=40000003 syscall=11 success=yes exit=0 a0=9f292d0 a1=9f29368 a2=9f295c0 a3=0 items=0 ppid=7564 pid=7574 auid=0 uid=0 gid=0 euid=0 suid=0 fsuid=0 egid=0 sgid=0 fsgid=0 tty=(none) ses=24 comm="readahead" exe="/usr/sbin/readahead" subj=system_u:system_r:readahead_t:s0-s0:c0.c1023 key=(null)
>
>
>
>
> I do not know if readahead should be denied or not? What do you recommend that I do?
>
> Regards,
>
> Antonio
>
>
>
>
> --
> fedora-selinux-list mailing list
> fedora-selinux-list@redhat.com
> https://www.redhat.com/mailman/listinfo/fedora-selinux-list

Fixed in selinux-policy-3.5.6-1.fc10
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