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Bug 158375 - Booting with early-login, login can't do on GDM (denided /etc/X11/xdm/Xession).
Booting with early-login, login can't do on GDM (denided /etc/X11/xdm/Xession).
Product: Fedora
Classification: Fedora
Component: selinux-policy-targeted (Show other bugs)
i386 Linux
medium Severity medium
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Assigned To: Daniel Walsh
Depends On:
  Show dependency treegraph
Reported: 2005-05-21 01:26 EDT by sangu
Modified: 2007-11-30 17:11 EST (History)
1 user (show)

See Also:
Fixed In Version: selinux-policy-targeted-1.23.18-2
Doc Type: Bug Fix
Doc Text:
Story Points: ---
Clone Of:
Last Closed: 2005-06-09 12:08:19 EDT
Type: ---
Regression: ---
Mount Type: ---
Documentation: ---
Verified Versions:
Category: ---
oVirt Team: ---
RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: ---

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Description sangu 2005-05-21 01:26:36 EDT
Description of problem:

cat /proc/cmdline
ro root=LABEL=/ acpi=on video=vesafb:ywrap,mtrr:1600x1200@60 vga=0x346 early-login
Booting with early-login,  denided /etc/X11/xdm/Xession. 
And Can't login on GDM
in dmesg
audit(1116652629.697:0): avc:  denied  { transition } for 
path="/etc/X11/xdm/Xsession" dev=hda8 ino=292934
scontext=system_u:system_r:initrc_t tcontext=user_u:system_r:unconfined_t

$ls -Zal /etc/X11/xdm/Xsession
-rwxr-xr-x  1 system_u:object_r:xsession_exec_t root root 3391  4월 11 20:43

$cat /tmp/xses-sangu.rax3xB
/etc/X11/gdm/PreSession/Default: Registering your session with wtmp and utmp
/etc/X11/gdm/PreSession/Default: running: /usr/X11R6/bin/sessreg -a -w
/var/log/wtmp -u /var/run/utmp -x "/var/gdm/:0.Xservers" -h "" -l ":0" "sangu"
session_child_run: Could not exec /etc/X11/xdm
Version-Release number of selected component (if applicable):

How reproducible:

Steps to Reproduce:
Actual results:
Can't login on GDM

Expected results:

Additional info:
Comment 1 sangu 2005-05-27 05:19:59 EDT
login  can't do still in selinux-policy-targeted-1.23.17-2.
$cat /var/log/audit/audit.log
type=AVC msg=audit(1117169338.249:238525): avc:  denied  { transition } for 
pid=2619 comm="gdm-binary" name=Xsession dev=hda8 ino=292934
scontext=system_u:system_r:initrc_t tcontext=user_u:system_r:unconfined_t
type=AVC_PATH msg=audit(1117169338.249:238525):  path="/etc/X11/xdm/Xsession"
type=PATH msg=audit(1117169338.249:238525): item=0 name="/etc/X11/xdm/Xsession"
inode=292934 dev=03:08 mode=0100755 ouid=0 ogid=0 rdev=00:00
Comment 2 sangu 2005-05-27 05:29:12 EDT
Please see also : bug 155983, comment 1
Comment 3 Daniel Walsh 2005-05-27 15:36:01 EDT
How do you set this up?

Comment 4 sangu 2005-05-27 22:31:10 EDT
1. add gdm daemon 
$chkconfig --add gdm-allow-login
$chkconfig --add gdm-early-login
$chkconfig --add zzz-bootup-complete

2. modify kernel command line option in /boot/grub/menu.list 
rhgb -> early-login

%cat /boot/grub/menu.list

title Fedora Core (2.6.11-1.1363_FC4)
        root (hd0,7)
        kernel /boot/vmlinuz-2.6.11-1.1363_FC4 ro root=LABEL=/ acpi=on early-login
        initrd /boot/initrd-2.6.11-1.1363_FC4.img

3. reboot

initscripts-8.11.1-1 gdm-

See Also : bug 151952 bug 154413
Comment 5 Daniel Walsh 2005-06-08 12:07:11 EDT
This does not seem to work on my machine with or without SELinux.

If you do a chcon -t gdm_exec_t /usr/bin/gdm-binary

Does it begin to work?
Comment 6 sangu 2005-06-09 12:08:19 EDT
Only after installing selinux-policy-targeted-1.23.18-2, this bug was fixed.

$ls -lZa /usr/bin/gdm-binary
-rwxr-xr-x  root     root     system_u:object_r:xdm_exec_t     /usr/bin/gdm-binary
$ls -lZa /etc/X11/xdm/Xsession
-rwxr-xr-x  root     root     system_u:object_r:xsession_exec_t

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