Summary: SELinux is preventing /usr/libexec/gdm-session-worker "write" access on /root. Detailed Description: SELinux denied access requested by gdm-session-wor. It is not expected that this access is required by gdm-session-wor 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: You can generate a local policy module to allow this access - see FAQ (http://docs.fedoraproject.org/selinux-faq-fc5/#id2961385) Please file a bug report. Additional Information: Source Context system_u:system_r:xdm_t:s0-s0:c0.c1023 Target Context system_u:object_r:admin_home_t:s0 Target Objects /root [ dir ] Source gdm-session-wor Source Path /usr/libexec/gdm-session-worker Port <Unknown> Host (removed) Source RPM Packages gdm-2.28.2-1.fc12 Target RPM Packages filesystem-2.4.30-2.fc12 Policy RPM selinux-policy-3.6.32-78.fc12 Selinux Enabled True Policy Type targeted Enforcing Mode Enforcing Plugin Name catchall Host Name (removed) Platform Linux (removed) 2.6.31.12-174.2.3.fc12.i686.PAE #1 SMP Mon Jan 18 20:06:44 UTC 2010 i686 i686 Alert Count 4 First Seen Sat 06 Feb 2010 06:25:50 AM CLST Last Seen Sat 06 Feb 2010 07:14:41 AM CLST Local ID 9cfd9039-0e8a-43fe-b6da-e5b9e81d7a5d Line Numbers Raw Audit Messages node=(removed) type=AVC msg=audit(1265451281.600:28191): avc: denied { write } for pid=1643 comm="gdm-session-wor" name="root" dev=dm-0 ino=81601 scontext=system_u:system_r:xdm_t:s0-s0:c0.c1023 tcontext=system_u:object_r:admin_home_t:s0 tclass=dir node=(removed) type=SYSCALL msg=audit(1265451281.600:28191): arch=40000003 syscall=5 success=no exit=-13 a0=87b6ed0 a1=80c2 a2=180 a3=21 items=0 ppid=1585 pid=1643 auid=0 uid=0 gid=0 euid=0 suid=0 fsuid=0 egid=0 sgid=0 fsgid=0 tty=(none) ses=1 comm="gdm-session-wor" exe="/usr/libexec/gdm-session-worker" subj=system_u:system_r:xdm_t:s0-s0:c0.c1023 key=(null) Hash String generated from selinux-policy-3.6.32-78.fc12,catchall,gdm-session-wor,xdm_t,admin_home_t,dir,write audit2allow suggests: #============= xdm_t ============== #!!!! The source type 'xdm_t' can write to a 'dir' of the following types: # pcscd_var_run_t, var_lock_t, xkb_var_lib_t, xdm_rw_etc_t, root_t, tmp_t, var_t, user_fonts_t, user_tmpfs_t, xdm_spool_t, fonts_cache_t, user_home_dir_t, locale_t, var_auth_t, xserver_tmp_t, tmpfs_t, var_spool_t, user_tmp_t, var_lib_t, var_run_t, auth_cache_t, xdm_tmpfs_t, xserver_log_t, var_log_t, xdm_log_t, pam_var_run_t, xdm_var_lib_t, xdm_var_run_t, xdm_home_t, pam_var_console_t, root_t, nfs_t allow xdm_t admin_home_t:dir write;
Are you trying to login as root? This is not allowed with SELinux in enforcing mode. *** This bug has been marked as a duplicate of bug 543970 ***
I have modified the files /etc/pam.d/gdm and /etc/pam.d/gdm-password (placing "test quiet" instead "root quiet") to allow I can to login as root. But now I have returned that files to its original formats.