Bug 706260 - SELinux is preventing /usr/bin/ldapsearch from 'read' accesses on the lnk_file /usr/tmp.
Summary: SELinux is preventing /usr/bin/ldapsearch from 'read' accesses on the lnk_fil...
Alias: None
Product: Fedora
Classification: Fedora
Component: selinux-policy
Version: 15
Hardware: x86_64
OS: Linux
Target Milestone: ---
Assignee: Miroslav Grepl
QA Contact: Fedora Extras Quality Assurance
Whiteboard: setroubleshoot_trace_hash:dd44eb4c73b...
Depends On:
TreeView+ depends on / blocked
Reported: 2011-05-19 21:09 UTC by Chris Cowan
Modified: 2011-06-03 05:29 UTC (History)
3 users (show)

Fixed In Version: selinux-policy-3.9.16-26.fc15
Doc Type: Bug Fix
Doc Text:
Clone Of:
Last Closed: 2011-06-03 05:29:57 UTC

Attachments (Terms of Use)

Description Chris Cowan 2011-05-19 21:09:57 UTC
I'm using automounted home directories with autofs and NFS, and the /etc/auto.home file does an ldap search to find where to mount the user's home directory from. I'm using Fedora 15 Beta. This error seems to happen occasionally until I followed the steps to fix it:

SELinux is preventing /usr/bin/ldapsearch from 'read' accesses on the lnk_file /usr/tmp.

*****  Plugin catchall_labels (83.8 confidence) suggests  ********************

If you want to allow ldapsearch to have read access on the tmp lnk_file
Then you need to change the label on /usr/tmp
# semanage fcontext -a -t FILE_TYPE '/usr/tmp'
where FILE_TYPE is one of the following: locale_t, etc_t, proc_t, automount_t, sysfs_t, var_run_t, abrt_t, lib_t, root_t, proc_net_t, device_t, samba_var_t, ld_so_t, proc_t, textrel_shlib_t, etc_runtime_t, rpm_script_tmp_t, udev_var_run_t, var_run_t, bin_t, cert_t, autofs_t, device_t, devlog_t, var_run_t, var_run_t, var_run_t, cert_t. 
Then execute: 
restorecon -v '/usr/tmp'

*****  Plugin catchall (17.1 confidence) suggests  ***************************

If you believe that ldapsearch should be allowed read access on the tmp lnk_file by default.
Then you should report this as a bug.
You can generate a local policy module to allow this access.
allow this access for now by executing:
# grep ldapsearch /var/log/audit/audit.log | audit2allow -M mypol
# semodule -i mypol.pp

Additional Information:
Source Context                system_u:system_r:automount_t:s0
Target Context                system_u:object_r:usr_t:s0
Target Objects                /usr/tmp [ lnk_file ]
Source                        ldapsearch
Source Path                   /usr/bin/ldapsearch
Port                          <Unknown>
Host                          (removed)
Source RPM Packages           openldap-clients-2.4.24-2.fc15
Target RPM Packages           filesystem-2.4.40-1.fc15
Policy RPM                    selinux-policy-3.9.16-13.fc15
Selinux Enabled               True
Policy Type                   targeted
Enforcing Mode                Enforcing
Host Name                     (removed)
Platform                      Linux sjera.tcct.nmt.edu #1
                              SMP Wed Mar 30 16:55:57 UTC 2011 x86_64 x86_64
Alert Count                   55
First Seen                    Wed 18 May 2011 05:16:42 PM MDT
Last Seen                     Thu 19 May 2011 01:41:25 PM MDT
Local ID                      e911d322-b470-4525-81e4-54fd24298d94

Raw Audit Messages
type=AVC msg=audit(1305834085.680:130): avc:  denied  { read } for  pid=4239 comm="ldapsearch" name="tmp" dev=dm-1 ino=132135 scontext=system_u:system_r:automount_t:s0 tcontext=system_u:object_r:usr_t:s0 tclass=lnk_file

type=SYSCALL msg=audit(1305834085.680:130): arch=x86_64 syscall=stat success=no exit=EACCES a0=3300a419a3 a1=7fff5baac780 a2=7fff5baac780 a3=0 items=0 ppid=4238 pid=4239 auid=4294967295 uid=0 gid=0 euid=0 suid=0 fsuid=0 egid=0 sgid=0 fsgid=0 tty=(none) ses=4294967295 comm=ldapsearch exe=/usr/bin/ldapsearch subj=system_u:system_r:automount_t:s0 key=(null)

Hash: ldapsearch,automount_t,usr_t,lnk_file,read


#============= automount_t ==============
#!!!! This avc is allowed in the current policy

allow automount_t usr_t:lnk_file read;

audit2allow -R

#============= automount_t ==============
#!!!! This avc is allowed in the current policy

allow automount_t usr_t:lnk_file read;

Comment 1 Miroslav Grepl 2011-05-23 06:49:21 UTC
Fixed in selinux-policy-3.9.16-25.fc15.

Comment 2 Fedora Update System 2011-05-27 16:56:00 UTC
selinux-policy-3.9.16-26.fc15 has been submitted as an update for Fedora 15.

Comment 3 Fedora Update System 2011-05-28 23:58:02 UTC
Package selinux-policy-3.9.16-26.fc15:
* should fix your issue,
* was pushed to the Fedora 15 testing repository,
* should be available at your local mirror within two days.
Update it with:
# su -c 'yum update --enablerepo=updates-testing selinux-policy-3.9.16-26.fc15'
as soon as you are able to.
Please go to the following url:
then log in and leave karma (feedback).

Comment 4 Fedora Update System 2011-06-03 05:29:14 UTC
selinux-policy-3.9.16-26.fc15 has been pushed to the Fedora 15 stable repository.  If problems still persist, please make note of it in this bug report.

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