Bug 684563

Summary: SELinux is preventing /usr/libexec/gdm-session-worker from using the 'sys_admin' capabilities.
Product: [Fedora] Fedora Reporter: bugz <bean_curd098>
Component: selinux-policyAssignee: Miroslav Grepl <mgrepl>
Status: CLOSED INSUFFICIENT_DATA QA Contact: Fedora Extras Quality Assurance <extras-qa>
Severity: medium Docs Contact:
Priority: unspecified    
Version: 14CC: dwalsh, mgrepl
Target Milestone: ---   
Target Release: ---   
Hardware: i386   
OS: Linux   
Whiteboard: setroubleshoot_trace_hash:5d0d4568516ebed5e82486f285fe3c7e3e518337add8defddfc4b7cdf60c1327
Fixed In Version: Doc Type: Bug Fix
Doc Text:
Story Points: ---
Clone Of: Environment:
Last Closed: 2011-03-31 19:51:55 UTC Type: ---
Regression: --- Mount Type: ---
Documentation: --- CRM:
Verified Versions: Category: ---
oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:

Description bugz 2011-03-13 13:44:27 UTC
SELinux is preventing /usr/libexec/gdm-session-worker from using the 'sys_admin' capabilities.

*****  Plugin catchall_boolean (89.3 confidence) suggests  *******************

If e がしたいnable polyinstantiated directory support.
Then これについては、SELinux に 'allow_polyinstantiation' boolean を有効にする設定をしなければいけません。
Do
setsebool -P allow_polyinstantiation 1

*****  Plugin catchall (11.6 confidence) suggests  ***************************

If gdm-session-worker は、 sys_admin capability をデフォルトで持っているべきです。
Then これをバグをして報告すべきです。 
このアクセスを許可するために、ローカルポリシーモジュールを生成することができます。
Do
このアクセスを一時的に許可するには、以下を実行してください。:
# grep gdm-session-wor /var/log/audit/audit.log | audit2allow -M mypol
# semodule -i mypol.pp

Additional Information:
Source Context                system_u:system_r:xdm_t:s0-s0:c0.c1023
Target Context                system_u:system_r:xdm_t:s0-s0:c0.c1023
Target Objects                Unknown [ capability ]
Source                        gdm-session-wor
Source Path                   /usr/libexec/gdm-session-worker
Port                          <不明>
Host                          (removed)
Source RPM Packages           gdm-2.32.0-1.fc14
Target RPM Packages           
Policy RPM                    selinux-policy-3.9.7-31.fc14
Selinux Enabled               True
Policy Type                   targeted
Enforcing Mode                Enforcing
Host Name                     (removed)
Platform                      Linux (removed) 2.6.35.11-83.fc14.i686 #1 SMP
                              Mon Feb 7 07:04:18 UTC 2011 i686 i686
Alert Count                   2
First Seen                    2011年03月02日 13時02分55秒
Last Seen                     2011年03月02日 17時19分35秒
Local ID                      13a0e8fa-4fd4-4425-b910-5db623614b79

Raw Audit Messages
type=AVC msg=audit(1299053975.563:25300): avc:  denied  { sys_admin } for  pid=11698 comm="gdm-session-wor" capability=21  scontext=system_u:system_r:xdm_t:s0-s0:c0.c1023 tcontext=system_u:system_r:xdm_t:s0-s0:c0.c1023 tclass=capability


type=SYSCALL msg=audit(1299053975.563:25300): arch=i386 syscall=unshare success=no exit=EPERM a0=20000 a1=1 a2=142da0 a3=bfad5220 items=0 ppid=11598 pid=11698 auid=501 uid=0 gid=502 euid=0 suid=0 fsuid=0 egid=502 sgid=502 fsgid=502 tty=(none) ses=5 comm=gdm-session-wor exe=/usr/libexec/gdm-session-worker subj=system_u:system_r:xdm_t:s0-s0:c0.c1023 key=(null)

Hash: gdm-session-wor,xdm_t,xdm_t,capability,sys_admin

audit2allow

#============= xdm_t ==============
#!!!! This avc can be allowed using the boolean 'allow_polyinstantiation'

allow xdm_t self:capability sys_admin;

audit2allow -R

#============= xdm_t ==============
#!!!! This avc can be allowed using the boolean 'allow_polyinstantiation'

allow xdm_t self:capability sys_admin;

Comment 1 Miroslav Grepl 2011-03-14 16:55:28 UTC
Do you use polyinstantiation?

Comment 2 Daniel Walsh 2011-03-14 18:35:56 UTC
Did you setup pam_namespace?