The following was filed automatically by setroubleshoot: Résumé: SELinux is preventing /usr/bin/totem from making the program stack executable. Description détaillée: [nautilus has a permissive type (unconfined_t). This access was not denied.] The totem application attempted to make its stack executable. This is a potential security problem. This should never ever be necessary. Stack memory is not executable on most OSes these days and this will not change. Executable stack memory is one of the biggest security problems. An execstack error might in fact be most likely raised by malicious code. Applications are sometimes coded incorrectly and request this permission. The SELinux Memory Protection Tests (http://people.redhat.com/drepper/selinux-mem.html) web page explains how to remove this requirement. If totem does not work and you need it to work, you can configure SELinux temporarily to allow this access until the application is fixed. Please file a bug report. Autoriser l'accès: Sometimes a library is accidentally marked with the execstack flag, if you find a library with this flag you can clear it with the execstack -c LIBRARY_PATH. Then retry your application. If the app continues to not work, you can turn the flag back on with execstack -s LIBRARY_PATH. Otherwise, if you trust totem to run correctly, you can change the context of the executable to execmem_exec_t. "chcon -t execmem_exec_t '/usr/bin/totem'" You must also change the default file context files on the system in order to preserve them even on a full relabel. "semanage fcontext -a -t execmem_exec_t '/usr/bin/totem'" Commande de correction: chcon -t execmem_exec_t '/usr/bin/totem' Informations complémentaires: Contexte source unconfined_u:unconfined_r:unconfined_t:s0-s0:c0.c1 023 Contexte cible unconfined_u:unconfined_r:unconfined_t:s0-s0:c0.c1 023 Objets du contexte None [ process ] source nautilus Chemin de la source /usr/bin/nautilus Port <Inconnu> Hôte (removed) Paquetages RPM source totem-2.27.92-1.fc12 Paquetages RPM cible Politique RPM selinux-policy-3.6.31-2.fc12 Selinux activé True Type de politique targeted MLS activé True Mode strict Enforcing Nom du plugin allow_execstack Nom de l'hôte (removed) Plateforme Linux (removed) 2.6.31-2.fc12.x86_64 #1 SMP Thu Sep 10 00:25:40 EDT 2009 x86_64 x86_64 Compteur d'alertes 6 Première alerte ven. 11 sept. 2009 20:39:18 CEST Dernière alerte ven. 11 sept. 2009 21:05:12 CEST ID local 2cec03da-6fdf-4d67-9d10-6e033418afdb Numéros des lignes Messages d'audit bruts node=(removed) type=AVC msg=audit(1252695912.180:71): avc: denied { execstack } for pid=3103 comm="totem" scontext=unconfined_u:unconfined_r:unconfined_t:s0-s0:c0.c1023 tcontext=unconfined_u:unconfined_r:unconfined_t:s0-s0:c0.c1023 tclass=process node=(removed) type=AVC msg=audit(1252695912.180:71): avc: denied { execmem } for pid=3103 comm="totem" scontext=unconfined_u:unconfined_r:unconfined_t:s0-s0:c0.c1023 tcontext=unconfined_u:unconfined_r:unconfined_t:s0-s0:c0.c1023 tclass=process node=(removed) type=SYSCALL msg=audit(1252695912.180:71): arch=c000003e syscall=10 success=yes exit=0 a0=7fff8b950000 a1=1000 a2=1000007 a3=7fafbebb8af9 items=0 ppid=1 pid=3103 auid=500 uid=500 gid=500 euid=500 suid=500 fsuid=500 egid=500 sgid=500 fsgid=500 tty=(none) ses=3 comm="totem" exe="/usr/bin/totem" subj=unconfined_u:unconfined_r:unconfined_t:s0-s0:c0.c1023 key=(null) audit2allow suggests: #============= unconfined_t ============== allow unconfined_t self:process { execstack execmem };
I have a feeling this is caused by the codecs you have installed. If so you options are to attempt set the context on totem as described by the bugzilla or turn off you execstack/execmem protection for user processes by executing setsebool -P allow_execstack 1 You might want to report this as a bug to to codec providers. http://people.redhat.com/~drepper/selinux-mem.html