SELinux is preventing /usr/libexec/kde4/kdm_greet from 'open' accesses on the file /usr/share/config/kdebug.areas. ***** Plugin catchall (100. confidence) suggests *************************** If you believe that kdm_greet should be allowed open access on the kdebug.areas file by default. Then you should report this as a bug. You can generate a local policy module to allow this access. Do allow this access for now by executing: # grep kdm_greet /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:object_r:config_usr_t:s0 Target Objects /usr/share/config/kdebug.areas [ file ] Source kdm_greet Source Path /usr/libexec/kde4/kdm_greet Port <Unknown> Host (removed) Source RPM Packages kdm-4.6.1-2.fc14 Target RPM Packages kdelibs-common-4.6.1-4.fc14 Policy RPM selinux-policy-3.9.7-35.fc14 Selinux Enabled True Policy Type targeted Enforcing Mode Permissive Host Name (removed) Platform Linux (removed) 2.6.35.11-83.fc14.x86_64 #1 SMP Mon Feb 7 07:06:44 UTC 2011 x86_64 x86_64 Alert Count 1 First Seen Sun 20 Mar 2011 08:17:17 PM EET Last Seen Sun 20 Mar 2011 08:17:17 PM EET Local ID b81ddfbf-ff90-4a9b-8900-dd09e60af9a8 Raw Audit Messages type=AVC msg=audit(1300645037.697:15): avc: denied { open } for pid=2080 comm="kdm_greet" name="kdebug.areas" dev=dm-0 ino=138506 scontext=system_u:system_r:xdm_t:s0-s0:c0.c1023 tcontext=system_u:object_r:config_usr_t:s0 tclass=file type=SYSCALL msg=audit(1300645037.697:15): arch=x86_64 syscall=open success=yes exit=EAGAIN a0=1312368 a1=80000 a2=1b6 a3=1 items=0 ppid=2077 pid=2080 auid=4294967295 uid=0 gid=0 euid=0 suid=0 fsuid=0 egid=0 sgid=0 fsgid=0 tty=(none) ses=4294967295 comm=kdm_greet exe=/usr/libexec/kde4/kdm_greet subj=system_u:system_r:xdm_t:s0-s0:c0.c1023 key=(null) Hash: kdm_greet,xdm_t,config_usr_t,file,open audit2allow #============= xdm_t ============== allow xdm_t config_usr_t:file open; audit2allow -R #============= xdm_t ============== allow xdm_t config_usr_t:file open;
Selinux-policy seems to interfere with kdm somehow, and setting selinux to permissive, or disabling it fixes things. KDM can not start unless an init 3 is triggered and kdm is called as root. Downgrading does not help either, not does # grep kdm_greet /var/log/audit/audit.log | audit2allow -M mypol # semodule -i mypol.pp as suggested by sealert.
Created attachment 486494 [details] audit.log AVC errors grepped audit.log for AVC
*** Bug 689272 has been marked as a duplicate of this bug. ***
*** Bug 689273 has been marked as a duplicate of this bug. ***
It turns out this has the same root cause as bug #689270, see my comment there. *** This bug has been marked as a duplicate of bug 689270 ***