Description of problem: SELinux is preventing /usr/libexec/kde4/kdm_config from using the 'net_admin' capabilities. ***** Plugin catchall (100. confidence) suggests *************************** If cree que kdm_config debería tener la capacidad de net_admin de forma predeterminada. Then debería reportar esto como un error. Puede generar un módulo de política local para permitir este acceso. Do permita el acceso momentáneamente executando: # grep kdm_config /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 [ capability ] Source kdm_config Source Path /usr/libexec/kde4/kdm_config Port <Desconocido> Host (removed) Source RPM Packages kdm-4.10.4-5.fc19.x86_64 Target RPM Packages Policy RPM selinux-policy-3.12.1-59.fc19.noarch Selinux Enabled True Policy Type targeted Enforcing Mode Enforcing Host Name (removed) Platform Linux (removed) 3.9.9-301.fc19.x86_64 #1 SMP Thu Jul 4 15:10:36 UTC 2013 x86_64 x86_64 Alert Count 1 First Seen 2013-07-09 23:03:49 CEST Last Seen 2013-07-09 23:03:49 CEST Local ID ee180f6b-d5fb-443b-a1cf-ef21a1b51f60 Raw Audit Messages type=AVC msg=audit(1373403829.91:31): avc: denied { net_admin } for pid=943 comm="kdm_config" capability=12 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(1373403829.91:31): arch=x86_64 syscall=ioctl success=no exit=ENODEV a0=4 a1=8933 a2=7fff4ec34680 a3=a items=0 ppid=932 pid=943 auid=4294967295 uid=0 gid=0 euid=0 suid=0 fsuid=0 egid=0 sgid=0 fsgid=0 ses=4294967295 tty=(none) comm=kdm_config exe=/usr/libexec/kde4/kdm_config subj=system_u:system_r:xdm_t:s0-s0:c0.c1023 key=(null) Hash: kdm_config,xdm_t,xdm_t,capability,net_admin Additional info: reporter: libreport-2.1.5 hashmarkername: setroubleshoot kernel: 3.9.9-302.fc19.x86_64 type: libreport
Just interested why net_admin is needed by kdm_config. CAP_NET_ADMIN Perform various network-related operations: * interface configuration; * administration of IP firewall, masquerading, and accounting; * modify routing tables; * bind to any address for transparent proxying; * set type-of-service (TOS) * clear driver statistics; * set promiscuous mode; * enabling multicasting; * use setsockopt(2) to set the following socket options: SO_DEBUG, SO_MARK, SO_PRIORITY (for a pri‐ ority outside the range 0 to 6), SO_RCVBUFFORCE, and SO_SNDBUFFORCE.
Good question, reporter, can you describe which kdm options you were configuring when this occurred? (Offhand, I'd say kdm_config probably does not require this access, but that doesn't explain why the denial happened in the first place)
Created attachment 778109 [details] /etc/kde/kdm/kdmrc I don't remember to touch anything in the kdm config since upgrading to F19, when I only changed the theme to Schrödinger's Cat. I also get surprised when I saw this error, because I don't do anything special with kdm, only logon and shutdown.
kdm_config is just a parser of the kdmrc file. I don't think it does anything else than sending parsed values over a socket to the kdm daemon. I'll take a look if it's doing anything from the actions listed by Miroslav.
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