Bug 1277709 - SELinux is preventing /usr/sbin/smbd from 'getattr' accesses on the file /usr/bin/wodim.
Summary: SELinux is preventing /usr/sbin/smbd from 'getattr' accesses on the file /usr...
Alias: None
Product: Fedora
Classification: Fedora
Component: selinux-policy
Version: 21
Hardware: x86_64
OS: Unspecified
Target Milestone: ---
Assignee: Miroslav Grepl
QA Contact: Fedora Extras Quality Assurance
Whiteboard: abrt_hash:8809d57beadb4496573199c805c...
Depends On:
TreeView+ depends on / blocked
Reported: 2015-11-03 21:34 UTC by Raman Gupta
Modified: 2015-12-02 18:21 UTC (History)
5 users (show)

Fixed In Version:
Doc Type: Bug Fix
Doc Text:
Clone Of:
Last Closed: 2015-12-02 15:49:14 UTC
Type: ---

Attachments (Terms of Use)

Description Raman Gupta 2015-11-03 21:34:46 UTC
Description of problem:
Using Windows 10 in a virtual machine, accessing a samba network drive.
SELinux is preventing /usr/sbin/smbd from 'getattr' accesses on the file /usr/bin/wodim.

*****  Plugin samba_share (75.5 confidence) suggests   ***********************

If you want to allow smbd to have getattr access on the wodim file
Then you need to change the label on '/usr/bin/wodim'
# semanage fcontext -a -t samba_share_t '/usr/bin/wodim'
# restorecon  -v '/usr/bin/wodim'

*****  Plugin catchall_boolean (12.2 confidence) suggests   ******************

If you want to allow samba to share any file/directory read only.
Then you must tell SELinux about this by enabling the 'samba_export_all_ro' boolean.
You can read 'cdrecord_selinux' man page for more details.
setsebool -P samba_export_all_ro 1

*****  Plugin catchall_boolean (12.2 confidence) suggests   ******************

If you want to allow samba to share any file/directory read/write.
Then you must tell SELinux about this by enabling the 'samba_export_all_rw' boolean.
You can read 'cdrecord_selinux' man page for more details.
setsebool -P samba_export_all_rw 1

*****  Plugin catchall (1.97 confidence) suggests   **************************

If you believe that smbd should be allowed getattr access on the wodim 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 smbd /var/log/audit/audit.log | audit2allow -M mypol
# semodule -i mypol.pp

Additional Information:
Source Context                system_u:system_r:smbd_t:s0
Target Context                system_u:object_r:cdrecord_exec_t:s0
Target Objects                /usr/bin/wodim [ file ]
Source                        smbd
Source Path                   /usr/sbin/smbd
Port                          <Unknown>
Host                          (removed)
Source RPM Packages           samba-4.1.20-1.fc21.x86_64
Target RPM Packages           wodim-1.1.11-26.fc21.x86_64
Policy RPM                    selinux-policy-3.13.1-105.21.fc21.noarch
Selinux Enabled               True
Policy Type                   targeted
Enforcing Mode                Enforcing
Host Name                     (removed)
Platform                      Linux (removed) 4.1.8-100.fc21.x86_64 #1 SMP Tue
                              Sep 22 12:13:06 UTC 2015 x86_64 x86_64
Alert Count                   2
First Seen                    2015-11-03 16:32:43 EST
Last Seen                     2015-11-03 16:32:43 EST
Local ID                      4266654b-1be8-4e84-850c-ec88207938f3

Raw Audit Messages
type=AVC msg=audit(1446586363.569:178076): avc:  denied  { getattr } for  pid=17142 comm="smbd" path="/usr/bin/wodim" dev="dm-0" ino=526818 scontext=system_u:system_r:smbd_t:s0 tcontext=system_u:object_r:cdrecord_exec_t:s0 tclass=file permissive=0

type=SYSCALL msg=audit(1446586363.569:178076): arch=x86_64 syscall=stat success=no exit=EACCES a0=561e222f8e40 a1=7ffc15e2c270 a2=7ffc15e2c270 a3=a0 items=0 ppid=3364 pid=17142 auid=4294967295 uid=1000 gid=0 euid=1000 suid=0 fsuid=1000 egid=1000 sgid=0 fsgid=1000 tty=(none) ses=4294967295 comm=smbd exe=/usr/sbin/smbd subj=system_u:system_r:smbd_t:s0 key=(null)

Hash: smbd,smbd_t,cdrecord_exec_t,file,getattr

Version-Release number of selected component:

Additional info:
reporter:       libreport-2.3.0
hashmarkername: setroubleshoot
kernel:         4.1.8-100.fc21.x86_64
type:           libreport

Potential duplicate: bug 858740

Comment 1 Fedora End Of Life 2015-11-04 09:51:59 UTC
This message is a reminder that Fedora 21 is nearing its end of life.
Approximately 4 (four) weeks from now Fedora will stop maintaining
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Comment 2 Fedora End Of Life 2015-12-02 15:49:22 UTC
Fedora 21 changed to end-of-life (EOL) status on 2015-12-01. Fedora 21 is
no longer maintained, which means that it will not receive any further
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